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Mounted High-Power LEDs


  • UV, Visible, and IR Models Available
  • Optimized Heat Management Results in Stable Output
  • Internal SM1 (1.035"-40) Threading
  • Collimator Adapters Available Separately 

M505L3

505 nm LED

M625L3 with a Collimator Used as a Light Source for a Microscope

Related Items

Item #Color
(Click for Spectrum)a
Nominal
Wavelengtha,b
Minimum LED
Power Outputa
M280L3c UV 280 nm 25 mW
M310L3c UV 310 nm 25 mW
M340L3c UV 340 nm 10 mW
M365L2c UV 365 nm 190 mW
M375L3c UV 375 nm 387 mW
M385L2c UV 385 nm 270 mW
M395L4c UV 395 nm 400 mW
M405L2c UV 405 nm 410 mW
M420L3c Violet 420 nm 750 mW
M455L3 Royal Blue 455 nm 900 mW
M470L3 Blue 470 nm 650 mW
M490L3 Blue 490 nm 200 mW
M505L3 Cyan 505 nm 400 mW
M530L3 Green 530 nm 350 mW
M565L3d Lime 565 nm 880 mW
M590L3 Amber 590 nm 160 mW
M595L3d Amber 595 nm 445 mW
M617L3 Orange 617 nm 600 mW
M625L3 Red 625 nm 700 mW
M660L3 Deep Red 660 nm 640 mW
M730L4 Far Red 730 nm 515 mW
M780L3 IR 780 nm 200 mW
M810L3 IR 810 nm 325 mW
M850L3 IR 850 nm 900 mW
M880L3 IR 880 nm 300 mW
M940L3 IR 940 nm 800 mW
M970L3 IR 970 nm 35 mW
M1050L2 IR 1050 nm 50 mW
M1200L3 IR 1200 nm 30 mW
M1300L3 IR 1300 nm 25 mW
M1450L3 IR 1450 nm 31 mW
M1550L3 IR 1550 nm 31 mW
MBB1L3e Broadband 470 - 850 nmf 70 mW
MWWHL3d Warm White 3000 Kg 500 mW
MCWHL5d Cold White 6500 Kg 800 mW
  • Due to variations in the manufacturing process and operating parameters such as temperature and current, the actual spectral output of any given LED will vary. Output plots and nominal wavelength specs are only intended to be used as a guideline.
  • For LEDs in the visible spectrum, the nominal wavelength indicates the wavelength at which the LED appears brightest to the human eye. For UV and IR LEDs, the nominal wavelength corresponds to the peak wavelength. The nominal wavelength for visible LEDs may not correspond to the peak wavelength as measured by a spectrograph.
  • Our 280 nm to 420 nm LEDs radiate intense UV light during operation. Precautions must be taken to prevent looking directly at the UV light and UV light protective glasses must be worn to avoid eye damage. Exposure of the skin and other body parts to the UV light should be avoided.
  • The M565L3, M595L3, MWWHL3, and MCWHL5 are phosphor-converted LEDs and may not turn off completely when modulated above 10 kHz at duty cycles below 50%.
  • The MBB1L3 LED may not turn off completely when modulated at frequencies above 1 kHz with a duty cycle of 50%, as the broadband emission is produced by optically stimulating emission from phosphor. For modulation at frequencies above 1 kHz, the duty cycle may be reduced. For example, 10 kHz modulation is attainable with a duty cycle of 5%.
  • 10 dB bandwidth.
  • Correlated color temperature.

Mounted LED Features

  • Nominal Wavelengths Ranging from 280 nm to 1550 nm
  • Broadband, Warm White (3000 K), and Cold White (6500 K) LEDs Also Available
  • Integrated EEPROM Stores LED Operating Parameters
  • Thermal Properties Optimized for Stable Output Power
  • Internal SM1 (1.035"-40) Threading (6 mm Deep) for Attaching Collimation Adapters or Ø1" Lens Tubes
  • Collimation Adapters Available
    • Ø2" Optics in Housings for Selected Leica, Nikon, Olympus, and Zeiss Microscopes
    • Ø1" Optics in Housings with Internally SM2-Threaded Outputs
  • 4-Pin Female Mating Connector for Custom Power Supplies can be Purchased Separately
  • Versions with the Collimation Adapter Included can be Found Here

Each uncollimated, mounted LED consists of a single high-power LED with multiple emitters that has been mounted to the end of a heat sink. The heat sink has 6 mm long internal SM1 (1.035"-40) threads and has the same external diameter (1.20") as an SM1 lens tube, which makes it easy to integrate with other Thorlabs components. The integrated EEPROM chip in each LED stores information about the LED (e.g., current limit, wavelength, and forward voltage) and can be read by Thorlabs' DC2100 and DC4100 LED Controllers. For more information about LED drivers, including the basic LEDD1B driver, see the LED Drivers tab.

Optimized Thermal Management
These high-power mounted LEDs possess good thermal stability properties, eliminating the issue of degradation of optical output power due to increased LED temperature. For more details, please see the Stability tab.

Broadband LED Option
The MBB1L3 mounted LED has been designed to have relatively flat spectral emission over a wide wavelength range. Its FWHM bandwidth ranges from 500 nm to 780 nm, while the 10 dB bandwidth ranges between 470 nm and 850 nm. For more information on the spectrum of this broadband source, please see the table to the right.

Collimation & Microscope Adapters
Collimation adapters are available that contain an AR-coated aspheric lens for LEDs with wavelengths from 350 nm to 1050 nm. The COP adapters are designed to mate to the epi-illumination ports on Leica DMI, Nikon Eclipse, Olympus IX/BX, and Zeiss Axioskop microscopes; see below for more details. Additionally, Thorlabs offers mounted LEDs with microscope adapters pre-attached.

Alternatively, the ACP2520 collimation adapters have an internally M34 x 0.5 threaded housing and use a Ø25 mm optic in a translating carriage to provide collimation adjustment. Each collimation adapter includes an external M34 x 0.5 to internal SM2 (2.035"-40) thread adapter so that the LEDs can be easily integrated with Thorlabs' SM2-threaded components and microscope port adapters. This collimation adapter is also offered without an included optic (Item # ACP), allowing a user-supplied Ø1" or Ø25 mm optic to be integrated with the high-power LEDs. See the Collimation tab for more information.

Multi-LED Source
A customizable multi-LED source may be constructed using our mounted high-power LEDs and other Thorlabs items. This source may be configured for integration with Thorlabs' versatile SM1 Lens Tube Systems, 30 mm Cage Systems, and the microscope adapters sold below. Please see the Multi-LED Source tab for a detailed item list and instructions.

Thorlabs also offers integrated, user-configurable 4-Wavelength High-Power LED Sources.

Driver Options
Thorlabs offers four LED drivers: LEDD1B, DC2100, DC4100, and DC4104 (the latter two require the DC4100-HUB). See the LED Drivers tab for compatibility and driver features. The LEDD1B is capable of providing LED modulation frequencies up to 5 kHz, while DC2100, DC4100, and DC4104 can modulate the LED at a rate up to 100 kHz. In addition, the DC2100, DC4100, and DC4104 drivers are capable of reading the current limit from the EEPROM chip of the connected LED and automatically adjusting the max current setting to protect the LED.

Item #Color
(Click for
Spectrum)a
Nominal
Wavelengtha,b
Minimum LED
Power Outputa
Typical LED
Power Outputa
Maximum
Current
(CW)
Forward
Voltage
Bandwidth
(FWHM)
Viewing
Angle
(FWHM)
Emitter SizeTypical
Lifetimec
M280L3d UV 280 nm 25 mW 30 mW 350 mA 5.9 V 12 nm 140° 1 mm x 1 mm >500 h
M310L3d UV 310 nm 25 mW 30 mW 350 mA 5.9 V 10 nm 140° 1 mm x 1 mm >500 h
M340L3d UV 340 nm 10 mW 12 mW 80 mA 8.1 V 8 nm 176° 2 mm x 2 mme >3 000 h
M365L2d UV 365 nm 190 mW 360 mW 700 mA 4.4 V 7.5 nm 120° 1 mm x 1 mm >10 000 h
M375L3d UV 375 nm 387 mW 470 mW 700 mA 3.8 V 9 nm 110° 1 mm x 1 mm >10 000 h
M385L2d UV 385 nm 270 mW 430 mW 700 mA 4.3 V 10 nm 120° 1 mm x 1 mm >10 000 h
M395L4d UV 395 nm 400 mW 535 mW 500 mA 4.5 V 16 nm 126° 1 mm x 1 mm >10 000 h
M405L2d UV 405 nm 410 mW 760 mW 1000 mA 3.8 V 13 nm 85° 1 mm x 1 mm 100 000 h
M420L3d Violet 420 nm 750 mW 820 mW 1000 mA 3.5 V 15 nm 125° 1 mm x 1 mm >10 000 h
M455L3 Royal Blue 455 nm 900 mW 1020 mW 1000 mA 3.2 V 18 nm 80° 1 mm x 1 mm 100 000 h
M470L3 Blue 470 nm 650 mW 710 mW 1000 mA 3.2 V 25 nm 80° 1 mm x 1 mm 100 000 h
M490L3 Blue 490 nm 200 mW 250 mW 350 mA 3.5 V 23 nm 22° 1 mm x 1 mm >10 000 h
M505L3 Cyan 505 nm 400 mW 440 mW 1000 mA 3.3 V 30 nm 80° 1 mm x 1 mm 100 000 h
M530L3 Green 530 nm 350 mW 370 mW 1000 mA 3.2 V 33 nm 80° 1 mm x 1 mm 100 000 h
M565L3f Lime 565 nm 880 mW 979 mW 1000 mA 3.1 V 104 nm 125° 1 mm x 1 mm 50 000 h
M590L3 Amber 590 nm 160 mW 170 mW 1000 mA 2.2 V 18 nm 80° 1 mm x 1 mm 100 000 h
M595L3f Amber 595 nm 445 mW 502 mW 700 mA 3.05 V 80 nm 120° 1 mm x 1 mm 50 000 h
M617L3 Orange 617 nm 600 mW 650 mW 1000 mA 2.2 V 18 nm 80° 1 mm x 1 mm 100 000 h
M625L3 Red 625 nm 700 mW 770 mW 1000 mA 2.2 V 18 nm 80° 1 mm x 1 mm 100 000 h
M660L3 Deep Red 660 nm 640 mW 700 mW 1200 mA 2.5 V 25 nm 90° 1 mm x 1 mm >65 000 h
M730L4 Far Red 730 nm 515 mW 595 mW 1000 mA 2.3 V 37 nm 160° 1 mm x 1 mm >10 000 h
M780L3 IR 780 nm 200 mW 300 mW 800 mA 2.0 V 28 nm 20° 1 mm x 1 mm >10 000 h
M810L3 IR 810 nm 325 mW 375 mW 500 mA 3.6 V 25 nm 40° 1 mm x 1 mm >10 000 h
M850L3 IR 850 nm 900 mW 1100 mW 1000 mA 2.9 V 30 nm 90° 1 mm x 1 mm 100 000 h
M880L3 IR 880 nm 300 mW 350 mW 1000 mA 1.7 V 50 nm 128° 1 mm x 1 mm >10 000 h
M940L3 IR 940 nm 800 mW 1000 mW 1000 mA 2.75 V 37 nm 90° 1 mm x 1 mm 100 000 h
M970L3 IR 970 nm 35 mW 50 mW 600 mA 1.4 V 50 nm 124° 1 mm x 1 mm >10 000 h
M1050L2 IR 1050 nm 50 mW 70 mW 700 mA 1.5 V 60 nm 120° 1 mm x 1 mm >10 000 h
M1200L3 IR 1200 nm 30 mW 35 mW 700 mA 1.4 V 80 nm 134° 1 mm x 1 mm >10 000 h
M1300L3 IR 1300 nm 25 mW 30 mW 500 mA 1.4 V 80 nm 134° 1 mm x 1 mm >10 000 h
M1450L3 IR 1450 nm 31 mW 36 mW 700 mA 1.15 V 80 nm 136° 1 mm x 1 mm >10 000 h
M1550L3 IR 1550 nm 31 mW 36 mW 700 mA 1.5 V 102 nm 136° 1 mm x 1 mm >10 000 h
MBB1L3g Broadband 470 - 850 nmh 70 mW 80 mW 500 mA 3.6 V 280 nm 120° 1 mm x 1 mm 10 000 h
MWWHL3f Warm White 3000 Ki 500 mW 550 mW 1000 mA 3.1 V N/A 120° 1 mm x 1 mm >50 000 h
MCWHL5f Cold White 6500 Ki 800 mW 840 mW 1000 mA 3.2 V N/A 80° 1 mm x 1 mm 100 000 h
  • Due to variations in the manufacturing process and operating parameters such as temperature and current, the actual spectral output of any given LED will vary. Output plots and nominal wavelength specs are only intended to be used as a guideline.
  • For LEDs in the visible spectrum, the nominal wavelength indicates the wavelength at which the LED appears brightest to the human eye. For UV and IR LEDs, the nominal wavelength corresponds to the peak wavelength. The nominal wavelength for visible LEDs may not correspond to the peak wavelength as measured by a spectrograph.
  • Thorlabs defines the lifetime of our LEDs as B50/L50, meaning that 50% of the LEDs with a given item # will fall below 50% of the initial optical power at the end of the specified lifetime.
  • Our 280 nm to 420 nm LEDs radiate intense UV light during operation. Precautions must be taken to prevent looking directly at the UV light and UV light protective glasses must be worn to avoid eye damage. Exposure of the skin and other body parts to the UV light should be avoided.
  • The M340L3 LED is comprised of four 1 mm x 1 mm emitters that have a total area of 2 mm x 2 mm.
  • The M565L3, M595L3, MWWHL3, and MCWHL5 are phosphor-converted LEDs and may not turn off completely when modulated above 10 kHz at duty cycles below 50%.
  • The MBB1L3 LED may not turn off completely when modulated at frequencies above 1 kHz with a duty cycle of 50%, as the broadband emission is produced by optically stimulating emission from phosphor. For modulation at frequencies above 1 kHz, the duty cycle may be reduced. For example, 10 kHz modulation is attainable with a duty cycle of 5%.
  • 10 dB Bandwidth.
  • Correlated Color Temperature.

Relative Power

The actual spectral output and total output power of any given LED will vary due to variations in the manufacturing process and operating parameters, such as temperature and current. Both a typical and minimum output power are specified to help you select an LED that suits your needs. Each mounted high-power LED will provide at least the minimum specified output power at the maximum current. In order to provide a point of comparison for the relative powers of LEDs with different nominal wavelengths, the spectra in the plots below have been scaled to the minimum output power for each LED. This data is representative, not absolute. An excel file with normalized and scaled spectra for all of the mounted high-power LEDs can be downloaded here.

LED Lifetime and Long-Term Power Stability

One characteristic of LEDs is that they naturally exhibit power degradation with time. Often this power degradation is slow, but there are also instances where large, rapid drops in power, or even complete LED failure, occur. LED lifetimes are defined as the time it takes a specified percentage of a type of LED to fall below some power level. The parameters for the lifetime measurement can be written using the notation BXX/LYY, where XX is the percentage of that type of LED that will provide less than YY percent of the specified output power after the lifetime has elapsed. Thorlabs defines the lifetime of our LEDs as B50/L50, meaning that 50% of the LEDs with a given Item # will fall below 50% of the initial optical power at the end of the specified lifetime. For example, if a batch of 100 LEDs is rated for 150 mW of output power, 50 of these LEDs can be expected to produce an output power of ≤75 mW after the specified LED lifetime has elapsed.

The sample plots below show example data from long-term stability testing for our UV LEDs over a 45 day period; the 280 nm and 310 nm LEDs have a typical lifetime of >500 hours (~20 days), while the M340L3 has a lifetime of >3,000 hours (~125 days). The small power drop experienced by each LED after it is turned on is typical behavior during the first few minutes of operation. It corresponds to the period of time required for the LED to warm up to the point where it is thermally stable. Please note that each graph represents the performance of a single LED; performance of individual LEDs will vary within the stated specifcations.

280 nm Long Term Stability
Click to Enlarge
 
The M280L3 LED has a typical lifetime of >500 hours. In this case, the unit under test had dropped to ~80% of the initial output power after 45 days.

310 nm LED Long Term Stability
Click to Enlarge

The M310L3 LED has a typical lifetime of >500 hours. In this case, the unit under test continued to provide more than 95% of its initial power after 45 days.
340 nm LED Long Term Stability
Click to Enlarge

The M340L3 LED has a typical lifetime of >3,000 hours. In this case, the unit under test continued to provide more than 90% of its initial power after 45 days.

Optimized Thermal Management

The thermal dissipation performance of these mounted LEDs has been optimized for stable power output. The heat sink is directly mounted to the LED mount so as to provide optimal thermal contact. By doing so, the degradation of optical output power that can be attributed to increased LED junction temperature is minimized (see the graph to the right).

Pin Out
PinSpecificationColor
1 LED Anode Brown
2 LED Cathode White
3 EEPROM GND Black
4 EEPROM IO Blue

Pin Connection - Male

The diagram to the right shows the male connector of the mounted LED assembly. It is a standard M8 x 1 sensor circular connector. Pins 1 and 2 are the connection to the LED. Pin 3 and 4 are used for the internal EEPROM in these LEDs. If using an LED driver that was not purchased from Thorlabs, be careful that the appropriate connections are made to Pin 1 and Pin 2 and that you do not attempt to drive the LED through the EEPROM pins.

Compatible DriversLEDD1BaDC2100bDC4100b,c,dDC4104b,c,d
Click Photos to Enlarge LEDD1B Driver DC2100 Driver DC4100 Driver DC4104 Driver
Max LED Driver Current Output 1.2 A 2.0 A 1.0 A per Channel 1.0 A per Channel
Max LED Driver Forward Voltage 12 V 24 V 5 V 5 V
Max Modulation Frequency Using External Input 5 kHz 100 kHze 100 kHze
(Simultaneous Across all Channels)
100 kHze
(Independently Controlled Channels)
External Control Interface(s) Analog (BNC) USB 2.0 and Analog (BNC) USB 2.0 and Analog (BNC) USB 2.0 and Analog (8-Pin)
Main Driver Features Very Compact Footprint
60 mm x 73 mm x 104 mm
(W x H x D)
Individual Pulse Width Control 4 Channelsc 4 Channelsc
EEPROM Compatible: Reads Out LED Data for LED Settings - Yes Yes Yes
LCD Display - Yes Yes Yes
  • The LEDD1B should not be used to drive the M340L3, as the current limit can only be set to a minimum of 200 mA (compared to the M340L3's max drive current of 80 mA).
  • Automatically limits to LED's max current via EEPROM readout.
  • The DC4100 and DC4104 can power and control up to four LEDs simultaneously when used with the DC4100-HUB. The LEDs on this page all require the DC4100-HUB when used with the DC4100 or DC4104.
  • These LED drivers have a maximum forward voltage rating of 5 V and can provide a maximum current of 1000 mA. As a result, they cannot be used to drive the M280L3, M310L3, or M340L3 LEDs, which have forward voltage ratings of >5 V. They can be used to drive the M660L3 LED, but will not be able to provide the LED's maximum current of 1200 mA.
  • Several of these LEDs produce light by stimulating emission from phosphor, which limits their modulation frequencies. The M565L3, M595L3, MWWHL3, and MCWHL5 LEDs may not turn off completely when modulated above 10 kHz at duty cycles below 50%. The MBB1L3 LED may not turn off completely when modulated at frequencies above 1 kHz with a duty cycle of 50%. When the MBB1L3 is modulated at frequencies above 1 kHz, the duty cycle may be reduced; for example, 10 kHz modulation is attainable with a duty cycle of 5%.

Note: The DC3100 drivers sold with our Modulated LEDs for FLIM Microscopy kits are not compatible with the LEDs sold on this page.

Collimating the LED

Thorlabs' extensive catalog of mechanical and optical components provides a variety of configurations that can be used to collimate our high-power LEDs. Some of the applications of the collimated LEDs include custom imaging systems, microscope illuminators, or projectors. Our COP adapters, available below, feature microscope-compatible outputs and Ø2" aspheric condenser lenses. The ACP, ACP2520-A, and ACP2520-B, also available below, are designed to provide collimation with focus adjustment via a Ø1" or Ø25 mm optic in a translating carriage; the mechanical housings have an M34 x 0.5 internal output thread and include an internally SM2-threaded adapter for integration with standard Thorlabs' components. If your setup requires a collimation package with the smallest possible profile, the LEDs can also be integrated with Ø1" collimating optics and SM1-threaded lens tubes. When exchanging the lens in your collimation adapter, please be careful to follow proper optics handling procedures (Optic Handling Tutorial).

Item #QtyDescription
SPW602a 1 Spanner Wrench for
SM1-Threaded Retaining Rings
ACL2520U-DG6-Ab,
ACL2520U-DG6-Bb,
ACL2520Ub,
or ACL2520U-DG6b
1 Aspheric Condenser Lens
(with or without Diffuser)
  • The ACP includes a retaining ring that is thicker than our standard SM1RR SM1-threaded retaining ring so that the SPW602 can be used without scratching the highly curved surface of an aspheric condenser lens.
  • -A and -B refer to the type of AR coating on the lens. Thorlabs' LEDs with a nominal wavelength between 365 nm and 660 nm would require the -A coating, while the LEDs with a nominal wavelength between 730 nm and 1050 nm would require the -B Coating. IR LEDs that emit past 1050 nm (M1200L3, M1300L3, M1450L3, M1550L3) can be collimated using an uncoated condenser lens, such as the ACL2520U. The deep UV LEDs (M280L3, M310L3, M340L3) require a lens fabricated from UV Fused Silica, since many standard varieties of glass do not transmit below 350 nm.

ACP Collimation Adapter
Thorlabs' ACP collimation adapters accept Ø1" or Ø25 mm collimation optics. The ACP2520-A and ACP2520-B include an aspheric condenser lenses coated for 350 - 700 nm (Item # ACL2520-A) and 650 - 1050 nm (Item # ACL2520-B), respectively. The ACP is offered without a pre-installed optics so that user-supplied components can be integrated with the LEDs. Several suggestions are presented in the table to the right.

ACP Collimation Adapter
Click to Enlarge

An ACP2520-A Collimation Adapter Installed on a High-Power Mounted LED

Installing a new lens in the ACP is a simple procedure:

  1. Turn the adjustment knob to move the optic mounting carriage to the M34 x 0.5 threaded end of the housing.
  2. Use the SPW602 spanner wrench to remove the SM1-threaded retaining ring from the housing.
  3. Place a Ø1" or Ø25 mm optic of your choice into the mounting carriage with the curved surface facing the output. For customers concerned with the homogeneity of the beam, the AR-coated aspheric condenser lens with diffuser
    (ACL2520U-DG6-A or ACL2520U-DG6-B) is a good option.
  4. Use the SPW602 spanner wrench to screw the SM1-threaded retaining ring into the mounting carriage, securing the optic in place.
  5. Screw the externally SM1-threaded end of the collimation adapter onto an LED of your choice as shown in the picture to the left.

SM1-Threaded Collimation Assembly
For cases where a smaller profile than the ACP collimation adapter is required, a simple LED collimation assembly can be built from the components listed in the table to the lower right. 

Item #QtyDescription
SM1RR 2 Ø1" Retaining Ring
(One Each Included with SM1V05 & SM1L03)
SPW801 1 Adjustable Spanner Wrencha
ACL2520U-Ab, ACL2520U-Bb,
ACL2520U-DG6-Ab, ACL2520U-DG6-Bb,
ACL2520Ub, or ACL2520U-DG6b
1 Aspheric Condenser Lens
(with or without Diffuser)
SM1V05c 1 Ø1" Rotating Adjustable Length
Lens Tube, 1/2" Long
SM1L03 1 Ø1" Lens Tube, 0.30" Long
  • While these components are SM1 threaded, we recommend our adjustable spanner wrench due to the steep curvature of the aspheric condenser lens.
  • -A and -B refer to the type of AR coating on the lens. Thorlabs' LEDs with a nominal wavelength between 365 nm and 660 nm would require the -A coating, while the LEDs with a nominal wavelength between 730 nm and 1050 nm would require the -B Coating. IR LEDs that emit past 1050 nm (M1200L3, M1300L3, M1450L3, M1550L3) can be collimated using an uncoated condenser lens, such as the ACL2520U. The deep UV LEDs (M280L3, M310L3, M340L3) require a lens fabricated from UV Fused Silica, since many standard varieties of glass do not transmit below 350 nm.
  • The SM1V10 Adjustable Lens Tube can also be used for this application, however, the translation range of the optic cell will be reduced from 7.6 mm (thread depth of the SM1L03) to 6 mm (thread depth of the LED). If used, the SM1L03 would no longer be needed in the assembly.
  1. First, install the optic in the adjustable lens tube, which allows one to control the working distance of the lens while collimating the LED. The SM1-threaded (1.035”-40) SM1V05 comes with a locking nut and a retaining ring. For customers concerned with the homogeneity of the beam, the AR-coated aspheric condenser lens with diffuser (ACL2520U-DG6-A or
    ACL2520U-DG6-B) is a good option. By the end of this step, the lens will rest on top of one retaining ring (SM1RR) and be secured in place by another retaining ring placed on top of it.
    1. Use the spanner wrench (SPW801) to turn the included retaining ring in the adjustable length lens tube so that it is closer to the inside lip of the tube.
    2. Carefully place the lens inside the adjustable length lens tube with the curved side facing away from the male-threaded end of the tube.
    3. Secure the lens in place with another retaining ring (SM1RR) using the spanner wrench. Note: Do not use the SPW602 spanner wrench for this step. The thin SM1RR retaining ring does not provide sufficient clearance to tighten it with the SPW602 without scratching the steeply curved surface of an aspheric condenser lens.
  2. Thread the male end of the SM1L03 lens tube into the female end of the LED and gently tighten it.
  3. Partially thread the male end of the SM1V05 adjustable length lens tube assembly into the female end of the SM1L03-LED assembly.
Step 1(b) Setup for Collimating LED Assembly
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Setup for Adjustable Length Lens Tube and Lens
Adjustable Length Lens Tube with Lens
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Completed Assembly
Step 3: Complete Assembly of Lens Tubes and LED
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Setup for Lens Tubes and LED Assembly

Obtaining a Well-Collimated Beam
After installing the chosen mounting adapter on a high-power mounted LED, the distance of the lens from the LED should be adjusted by following the steps below. A well-collimated beam has minimal divergence and will not converge at any point in the beam path. Be advised that due to the nature of the output from the LED (high emitter surface area), the beam cannot be perfectly collimated. Please refer to the table below for divergence data.

  1. Power on the LED and check to see if it is properly collimated. It is easiest to check that the beam is collimated by noting the changes in the beam diameter over a range of about 1" to 2 feet away; change the distance of the lens from the LED and check again. Do this until the least divergent, non-converging, homogenous beam is obtained. The beam should be somewhat circular in diameter, may have a slightly polygonal shape, and should not be a clear image of the LED itself.
  2. If you see an image of the LED, this means that the lens is not close enough to the LED. Move the lens closer to the LED until the image blurs and becomes homogenous – this is the point of collimation. Note: If the lens needs to be closer to the LED when using the SM1V05 assembly, use only one retaining ring to secure the lens in the SM1V05 so that the lens will rest on the inside lip of the SM1V05 adjustable length lens tube.
Image of the LED
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Image of the LED
Uncollimated Beam
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Uncollimated Beam
Collimated Beam
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Collimated Beam
  1. Once the proper collimation position of the lens has been found, lock the position of the lens in place.
    1. For the ACP collimation adapters, simply tighten the locking screw using a 2 mm (5/64") hex key.
    2. For the SM1V05 assembly described above, loosen it from the SM1L03 lens tube by about ¼ to ½ turn, rotate the external locking nut until it is flush with the edge of the SM1L03 lens tube, and gently tighten both the assembly and the locking nut by ¼ to ½ turn (there should be slight resistance; do not over tighten). This will lock the collimation position in place.

The table below provides examples of how the half viewing angle changes for select LEDs with the addition of a Ø1" aspheric condenser lens.

Item #ColorNominal
Wavelengtha
Optimum Lens to Emitter DistancebHalf Viewing Anglec
+1 mm Out of Focusdat Optimum Focusing Distance-1 mm Out of Focusd
M365L2 UV 365 nm 12.7 mm 2.79° 1.32° 3.11°
M385L2 UV 385 nm 12.8 mm 2.68° 1.33° 3.06°
M405L2 UV 405 nm 12.9 mm 2.94° 1.63° 3.06°
M505L3 Cyan 505 nm 13.2 mm 3.52° 2.72° 3.46°
M625L3 Red 625 nm 14.4 mm 3.46° 2.27° 3.13°
M660L3 Deep Red 660 nm 13.9 mm 2.84° 1.65° 2.95°
M850L3 IR 850 nm 13.8 mm 3.29° 3.10° 3.93°
M940L3 IR 940 nm 13.9 mm 3.42° 2.46° 3.70°
MCWHL5 Cold White 6500 Ke 13.9 mm 3.41° 2.47° 3.14°
  • The specifications listed in the table above are nominal values specified by the LED manufacturer.
  • Optimum distance between the respective mounted LED and the ACL2520 lens used to collimate the beam.
  • Power loss to 1/e2 (13.5%).
  • ±1 mm out of focus from Optimum Distance between the respective mounted LED and the ACL2520 lens used to collimate the beam.
  • Correlated Color Temperature.

The divergence data was calculated using Zemax.


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Multi-LED Source Coupled to Microscope Illumination Port

Creating a Custom Multi-LED Source for Microscope Illumination

Thorlabs offers the items necessary to create your own custom multi-LED light source using two or three of the mounted LEDs offered below. As configured in the following example, the light source is intended to be used with the illumination port of a microscope. However, it may be integrated with other applications using Thorlabs' versatile SM1 Lens Tube and 30 mm Cage Systems. Thorlabs also offers integrated, user-configurable 4-Wavelength High-Power LED Sources.

Design & Construction

First, light will be collimated by lenses mounted in lens tubes. Dichroic mirrors mounted in kinematic cage cubes then combine the output from the multiple LEDs. The mounted LEDs may be driven by LEDD1B Compact T-Cube LED Drivers (TPS001 T-Cube Power Supplies are sold separately). The LEDD1B LED Drivers allow each LED's output to be independently modulated and can provide up to 1200 mA of current. Please take care not to drive the LED sources above their max current ratings.

When designing your custom source, select mounted LEDs from below along with dichroic mirror(s) that have cutoff wavelength(s) between the LED wavelengths. The appropriate dichroic mirror(s) will reflect light from side-mounted LEDs and transmit light along the optical axis. Please note that most of these dichroic mirrors are "longpass" filters, meaning they transmit the longer wavelengths and reflect the shorter wavelengths. To superimpose light from three or more LEDs, add each in series (as shown below), starting from the back with longer wavelength LEDs when using longpass filters. Shortpass filters may also used if the longer wavelength is reflected and the shorter wavelength is transmitted. Sample combinations of compatible dichroic mirrors and LEDs are offered in the three tables below.

It is also necessary to select an aspheric condenser lens for each source with AR coatings appropriate for the source. Before assembling the light source, collimate the light from each mounted high-power LED as detailed in the Collimation tab. For mounting the aspheric lenses in the SM1V05 Lens Tubes using the included SM1RR retaining rings, we recommend the SPW801 Adjustable Spanner Wrench. A properly collimated LED source should have a resultant beam that is approximately homogenous and not highly divergent at a distance of approximately 2 feet (60 cm). An example of a well-collimated beam is shown on the Collimation tab.

After each LED source is collimated, thread the SM1V05 Lens Tubes at the end of each collimated LED assembly into their respective C4W Cage Cube ports using SM1T2 Lens Tube Couplers. Install each dichroic filter in an FFM1 Dichroic Filter Holder, and mount each filter holder onto a B4C Kinematic Cage Cube Platform. Each platform is then installed in the C4W Cage Cubes by partially threading the included screws into the bottom of the cube, and then inserting and rotating the B4C platform into place. Align the platform to the desired position and then firmly tighten the screws. To connect multiple cage cubes and the microscope adapter, use the remaining SM1T2 lens tube couplers along with an SM1L05 0.5" Lens Tube between adjacent cage cubes. Finally, adjust the rotation, tip, and tilt of each B4C platform to align the reflected and transmitted beams so they overlap as closely as possible.

If desired, a multi-LED source may be constructed that employs more than three LEDs. The limiting factors for the number of LEDs that can be practically used are the collimation of the light and the dichroic mirror efficiency over the specified range. Heavier multi-LED sources may be supported with our Ø1" or Ø1.5" Posts.


Click to Enlarge

Three-LED Source Using Components High-Power LEDs and Dichroic Mirrors
Detailed in Example Configuration 1
Parts List
# Product Description Item # 2 LEDs 3 LEDs
Item Qty.
1 Microscope
Illumination
Port Adapter:
Olympus IX or BX SM1A14 1 1
Leica DMI SM1A21
Zeiss Axioskop SM1A23a
Nikon Eclipse Ti SM1A26
2 Mounted High-Power LEDb - 2 3
- T-Cube LED Driver, 1200 mA Max Drive Current LEDD1Bc 2 3
- 15 V Power Supply Unit for a Single T-Cube TPS001c 2 3
3 4-Way Mounting 30 mm Cage Cube C4W 1 2
4 Kinematic Cage Cube Platform for C4W/C6W B4C 1 2
5 30 mm Cage-Compatible Dichroic Filter Mount FFM1 1 2
6 Dichroic Filter(s)d - 1 2
7 Externally SM1-Threaded End Cap SM1CP2 1 2
8 SM1 (1.035"-40) Coupler, External Threads, 0.5" Long SM1T2 3 5
9 Ø1" SM1 Lens Tube, 1/2" Long External Threads SM1V05 2 3
- Aspheric
Condenser Lens
AR-Coated 350 - 700 nm ACL2520U-Ac,e 2 3
AR-Coated 650 - 1050 nm ACL2520U-Bc,e
10 SM1 Lens Tube, 0.3" Thread Depth SM1L03 2 4
- Blank Cover Plate with Rubber O-Ring for C4W/C6W B1Cc 1 2
  • The SM1A23 Zeiss Axioskop Microscope Adapter is shown.
  • Mounted High-Power LEDs are available below.
  • Item not pictured.
  • Please see the following tables for suggested compatible LED and dichroic filter combinations, or create your own by taking into account the transmission and reflection wavelength ranges of our Dichroic Filters.
  • Lenses are mounted in the SM1V05 Lens Tube in front of each LED. For each lens, select an AR coating corresponding to the emission wavelength of the LED source.
Example Configuration 3
Mounted LEDs
# Item #
2a M1050L2
2b MCWHL5
Dichroic Filter(s)
# Item #
6a DMLP900R
Example Configuration 2
Mounted LEDs
# Item #
2a M625L3
2b M455L3
2c M1050L2
Dichroic Filter(s)
# Item #
6a DMLP505R
6b DMSP805R
Example Configuration 1
Mounted LEDs
# Item #
2a M625L3
2b M530L3
2c M455L3
Dichroic Filter(s)
# Item #
6a DMLP605R
6b DMLP505R

Click to Enlarge

Beam Profile of Source with 3 High-Power LEDs

Click to Enlarge

Two-LED source. This is the same as Example 1, but with the blue LED removed.
Item #Information FileAvailable Ray FilesClick to
Download
M365L2 M365L2_Info.pdf 100,000 Rays and 1 Million Rays
M385L2 M385L2_Info.pdf 1 Million Rays and 5 Million Rays
M405L2 M405L2_Info.pdf 1 Million Rays
M455L3a,b LD_CQ7P_290311_info.pdf 100,000 Rays, 500,000 Rays, and 5 Million Rays
M505L3a LV_CK7P_191212_info.pdf 100,000 Rays, 500,000 Rays, and 5 Million Rays
M530L3a LT_Cx7P_290311_info.pdf 100,000 Rays, 500,000 Rays, and 5 Million Rays
M617L3a,c LA_CP7P_030613_info.pdf 100,000 Rays, 500,000 Rays, and 5 Million Rays
M660L3 M660L3_Info.pdf 340,000 Rays
M850L3a SFH4715S_100413_info.pdf 100,000 Rays, 500,000 Rays, and 5 Million Rays
M940L3a SFH_4725S_110413_info.pdf 100,000 Rays, 500,000 Rays, and 5 Million Rays
MWWHL3 MWWHL3_Info.pdf 100,000 Rays, 500,000 Rays, and 1 Million Rays
  • A radiometric color spectrum, bare LED CAD file, and sample Zemax file are also available for these LEDs.
  • The ray data files for the M455L3 can be used for the M470L3 as well by manually resetting the source wavelength in Zemax. Wavelength-specific data and files, such as the radiometric color spectrum and sample Zemax files, only apply to the M455L3.
  • The ray data files for the M617L3 can be used for the M590L3 and M625L3 as well by manually resetting the source wavelength in Zemax. Wavelength-specific data and files, such as the radiometric color spectrum and sample Zemax files, only apply to the M617L3.

Ray data for Zemax is available for some of the bare LEDs incorporated into these high-powered light sources. This data is provided in a zipped folder that can be downloaded by clicking on the red document icons () next to the part numbers in the pricing tables below. Every zipped folder contains an information file and one or more ray files for use with Zemax:

  • Information File: This document contains a summary of the types of data files included in the zipped folder and some basic information about their use. It includes a table listing each document type and the corresponding filenames.
  • Ray Files: These are binary files containing ray data for use with Zemax.

For the LEDs marked with an superscript "a" in the table to the right, the following additional pieces of information are also included in the zipped folder:

  • Radiometric Color Spectrum: This .spc file is also intended for use with Zemax.
  • CAD Files: A file indicating the geometry of the bare LED. For the dimensions of the high-power mounted LEDs that include the package, please see the support drawings provided by Thorlabs.
  • Sample Zemax File: A sample file containing the recommended settings and placement of the ray files and bare LED CAD model when used with Zemax.

The table to the right summarizes the ray files available for each LED and any other supporting documentation provided.

Documents Tab to be Discontinued...
Please note that this tab will be removed at the end of 2015. The same information displayed here can be found by clicking on the red Docs Icon (Support Documentation icon) next to the item of interest in the pricing area below.
Click the Support Documentation icon document icon or Part Number below to view the available support documentation
Part NumberProduct Description
ACP Support Documentation ACP:Adjustable Collimation Adapter for Ø1" or Ø25 mm Optic
ACP2520-A Support Documentation ACP2520-A:Adjustable Collimation Adapter with AR-Coated Lens for 350 - 700 nm
ACP2520-B Support Documentation ACP2520-B:Adjustable Collimation Adapter with AR-Coated Lens for 650 - 1050 nm
CON8ML-4 Support Documentation CON8ML-4:4-Pin Female Mating Connector for Mounted LEDs
COP1-A Support Documentation COP1-A:Collimation Adapter for Olympus BX & IX, AR Coating: 350 - 700 nm
COP1-B Support Documentation COP1-B:Collimation Adapter for Olympus BX & IX, AR Coating: 650 - 1050 nm
COP2-A Support Documentation COP2-A:Collimation Adapter for Leica DMI, AR Coating: 350 - 700 nm
COP2-B Support Documentation COP2-B:Collimation Adapter for Leica DMI, AR Coating: 650 - 1050 nm
COP4-A Support Documentation COP4-A:Collimation Adapter for Zeiss Axioskop, AR Coating: 350 - 700 nm
COP4-B Support Documentation COP4-B:Collimation Adapter for Zeiss Axioskop, AR Coating: 650 - 1050 nm
COP5-A Support Documentation COP5-A:Collimation Adapter for Nikon Eclipse, AR Coating: 350 - 700 nm
COP5-B Support Documentation COP5-B:Collimation Adapter for Nikon Eclipse, AR Coating: 650 - 1050 nm
M1050L2 Support Documentation M1050L2:IR (1050 nm) Mounted LED, 700 mA, 50 mW (Min)
M1200L3 Support Documentation M1200L3:IR (1200 nm) Mounted LED, 700 mA, 30 mW (Min)
M1300L3 Support Documentation M1300L3:IR (1300 nm) Mounted LED, 500 mA, 25 mW (Min)
M1450L3 Support Documentation M1450L3:IR (1450 nm) Mounted LED, 700 mA, 31 mW (Min)
M1550L3 Support Documentation M1550L3:IR (1550 nm) Mounted LED, 700 mA, 31 mW (Min)
M280L3 Support Documentation M280L3:UV (280 nm) Mounted LED, 350 mA, 25 mW (Min)
M310L3 Support Documentation M310L3:UV (310 nm) Mounted LED, 350 mA, 25 mW (Min)
M340L3 Support Documentation M340L3:UV (340 nm) Mounted LED, 80 mA, 10 mW (Min)
M365L2 Support Documentation M365L2:UV (365 nm) Mounted LED, 700 mA, 190 mW (Min)
M375L3 Support Documentation M375L3:UV (375 nm) Mounted LED, 700 mA, 387 mW (Min)
M385L2 Support Documentation M385L2:UV (385 nm) Mounted LED, 700 mA, 270 mW (Min)
M395L4 Support Documentation M395L4:UV (395 nm) Mounted LED, 500 mA, 400 mW (Min)
M405L2 Support Documentation M405L2:UV (405 nm) Mounted LED, 1000 mA, 410 mW (Min)
Part NumberProduct Description
M420L3 Support Documentation M420L3:Violet (420 nm) Mounted LED, 1000 mA, 750 mW, (Min)
M455L3 Support Documentation M455L3:Royal Blue (455 nm) Mounted LED, 1000 mA, 900 mW (Min)
M470L3 Support Documentation M470L3:Blue (470 nm) Mounted LED, 1000 mA, 650 mW (Min)
M490L3 Support Documentation M490L3:Blue (490 nm) Mounted LED, 350 mA, 200 mW (Min)
M505L3 Support Documentation M505L3:Cyan (505 nm) Mounted LED, 1000 mA, 400 mW (Min)
M530L3 Support Documentation M530L3:Green (530 nm) Mounted LED, 1000 mA, 350 mW (Min)
M565L3 Support Documentation M565L3:Lime (565 nm) Mounted LED, 1000 mA, 880 mW (Min)
M590L3 Support Documentation M590L3:Amber (590 nm) Mounted LED, 1000 mA, 160 mW (Min)
M595L3 Support Documentation M595L3:Phosphor-Converted Amber (595 nm) Mounted LED, 700 mA, 445 mW (Min)
M617L3 Support Documentation M617L3:Orange (617 nm) Mounted LED, 1000 mA, 600 mW (Min)
M625L3 Support Documentation M625L3:Red (625 nm) Mounted LED, 1000 mA, 700 mW (Min)
M660L3 Support Documentation M660L3:Deep Red (660 nm) Mounted LED, 1200 mA, 640 mW (Min)
M730L4 Support Documentation M730L4:Far Red (730 nm) Mounted LED, 1000 mA, 515 mW (Min)
M780L3 Support Documentation M780L3:IR (780 nm) Mounted LED, 800 mA, 200 mW (Min)
M810L3 Support Documentation M810L3:IR (810 nm) Mounted LED, 500 mA, 325 mW (Min)
M850L3 Support Documentation M850L3:IR (850 nm) Mounted LED, 1000 mA, 900 mW (Min)
M880L3 Support Documentation M880L3:IR (880 nm) Mounted LED, 1000 mA, 300 mW (Min)
M940L3 Support Documentation M940L3:IR (940 nm) Mounted LED, 1000 mA, 800 mW (Min)
M970L3 Support Documentation M970L3:IR (970 nm) Mounted LED, 600 mA, 35 mW (Min)
MBB1L3 Support Documentation MBB1L3:Broadband (470 - 850 nm) Mounted LED, 500 mA, 70 mW (Min)
MCWHL5 Support Documentation MCWHL5:Cold White Mounted LED, 1000 mA, 800 mW (Min)
MWWHL3 Support Documentation MWWHL3:Warm White Mounted LED, 1000 mA, 500 mW (Min)
SM1A2 Support Documentation SM1A2:Adapter with External SM1 Threads and Internal SM2 Threads
SM2T2 Support Documentation SM2T2:SM2 (2.035"-40) Coupler, External Threads

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Posted Comments:
Poster:myanakas
Posted Date:2014-08-20 11:11:48.0
Response from Mike at Thorlabs: Thank you for your feedback. The thread depth is stated within our mechanical drawings (http://www.thorlabs.com/thorcat/MTN/M530L3-AutoCADPDF.pdf) which can be found by clicking on the red "docs" icons by the items numbers below. The thread depth for these LEDs is 6 mm. Based on this feedback we have added this information to the Overview tab of the web page. The SM1V10 can be used in place of the SM1V05 and SM1L03 pairing. However, the current recommendation allows for a slightly longer translation range of the optic due to the 7.6 mm depth of the internal threading in the SM1L03. The Collimation tab has also been updated to include the use of the SM1V10 as a collimation solution for these LEDs.
Poster:sjs09
Posted Date:2014-08-20 12:09:39.15
Dear Thorlabs, The thorlabs LED collimation page describes using an SM1 lens tube and aspheric lens. It seems you advise we buy an adjustable 1/2" lens tube and extend it with a 0.30" adapter. Since ThorLabs sells an adjustable 1" lens tube (SM1V10) this seems rather redundant, unless the thread inside the LED casing does not allow it to collimate. There is no information about the depth of the SM1 thread inside the LED casing. My question is this: Could you tell me whether SM1V10 would be able to collimate the LED on its own, or does it require SM1V05 and the 0.30" spacer? If this is the case, I suggest you extend the thread on the LED case, if possible, to simplify the process. Kind regards, Sam S
Poster:shallwig
Posted Date:2014-05-15 08:38:18.0
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. On page 3 of the manufacturer’s spec sheet you can find a curve showing current vs. output power on a relative scale to 350mA . In this range you will see a linear relationship, however we have no information how this relationship changes in the range from 350mA to 700mA. We have tested this LED only at 700mA as this is the maximum drive current our heat sink system can also manage. You can find the manufacturer spec sheet of this LED on our website here: http://www.thorlabs.com/thorcat/23300/M1050L2-MFGSpec.pdf Our spec sheet can be found here: http://www.thorlabs.com/thorcat/23300/M1050L2-SpecSheet.pdf In general information about this relationship if available, can be found in the manufactures spec sheet. I hope this information helps you further, please let me know if there is anything else you need.
Poster:Carlo.Vicario
Posted Date:2014-05-14 11:11:40.42
Dear Sirs, I would like to have information about the dependence between the emitted power versus the LED driving current. Is this relationship linear? Best regards, Carlo
Poster:tschalk
Posted Date:2014-03-31 09:25:56.0
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. We will contact you directly with a quotation.
Poster:a.andreski
Posted Date:2014-03-09 20:08:42.05
Can we order one of these packages but with the LED and the mounting heatsink not assembled/soldered at Thorlabs? We have our own assembly and thermal film bonding process. Aleksandar
Poster:tschalk
Posted Date:2013-12-02 03:35:07.0
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. We do have Zemax files available and i will contact you directly with more detailed information.
Poster:jan.moritz.ellinghaus
Posted Date:2013-11-22 08:26:13.437
Dear Sir or Madame, Can you send me the ray file for Zemax for the LED MWWHL3 Warm White 3000K? I could not quite identify which LED is actuall mounted. I would like to simulate the combination of this LED with the COP1-A in Zemax and combine this with some additional optical elements. Thank you in advance for your help! Kind regards, Jan Ellinghaus
Poster:tschalk
Posted Date:2013-08-26 10:08:00.0
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. Our Mounted High Power LEDs are all equipped with an EEPROM where the operating parameters are stored. The LED drivers DC2100, DC4100 and DC4104 read out the EEPORM and set the maximum operating current to the stored value. This way a current overload can be avoided. The driver LEDD1B is not able to read out the EEPROM and the current limit has to be set manually. The EEPROM will not cause noise to the current supply. I will contact you directly with more detailed information.
Poster:jan.haschke
Posted Date:2013-08-23 12:24:08.587
Dear Sir or Madam, I have a question concerning the mounted LED system you supply. We are using it as a BIAS illumination source in a measurement setup. I was wondering what the EEPROM on the PCB is for. Is it in any way affecting the current supply of the LED? In particular, is it possible that it creates some noise on the current supplying the LED? Thank you in advance for your help! Best regards, Jan Haschke
Poster:jvigroux
Posted Date:2012-09-24 10:22:00.0
A response form julien at Thorlabs: Than you for pointing this out. We corrected the presentation on our website so that now the wrench recommended is the SPW801. We will send you a replacement for the lens together with the new case.
Poster:gir
Posted Date:2012-09-20 16:20:24.0
One other thing: On the application page where it explains how to collimate the LED, it says to use a SPW602 spanner wrench to secure the aspheric lens with one retaining ring on each side. I did this, and the SPW602 carved a circle on the front surface of the lens. Please change this text to instruct people to use a different spanner, so they don't inadvertently scratch their collimating lens.
Poster:gir
Posted Date:2012-09-19 20:09:14.0
Hi: I have a minor issue to relay about the packaging of the mounted LEDs. I bought an M735L3 late last week and received it today. The plastic case it comes in is not well designed or built. Specifically, the red latch on front broke off while I was trying to figure out how to open the case. And it took two of the black plastic hinge-posts with it, so even when I put the latch back on the case, the case won't stay shut anymore. It seems silly to provide these in a hard shell case if the latch can't withstand a bit of force from a novice case-opener.
Poster:jlow
Posted Date:2012-08-30 14:23:00.0
Response from Jeremy at Thorlabs: Is your power supply a voltage source or is it a current source? It is highly recommended that you drive these LEDs with a current source instead. If you used a 5V constant voltage source (@ 3A), then you will most likely be injecting 3A of current into this LED and thus destroyed it (max. current for MCWHL2 is 1.6A). Please note that the typical forward voltage for the MCWHL2 is only about 3.5V. It could also be that you have not connected this correctly. I will get in contact with you directly to check on the details on your setup.
Poster:doron.azoury
Posted Date:2012-08-30 11:16:39.0
Hi, I just recieved the MCWHL2 LED. I control it by a DC power supply. I set the voltage limit to ~5V and tried to rise the current, but the LED doesn't seem to be working. Am I doing something wrong? (the DC supplier can deliver up to 3A)
Poster:jlow
Posted Date:2012-08-22 08:19:00.0
Response from Jeremy at Thorlabs: We do not have a precise number for this, but based on some old data, the rise and fall times are both on the order of 20ns or so.
Poster:riclambo
Posted Date:2012-08-20 13:48:19.0
Hello Thorlabs. I am using the 385 nm LED and I need to know its on-off switching time, particularly its off time i.e. when you turn it off, what is the extinction time of the after glow. Even if this is not known precisely, as order of magnitude value would be very useful.
Poster:jvigroux
Posted Date:2012-07-16 09:20:00.0
A response from Julien at Thorlabs: Dear HongYang, thank you for your inquiry! The curve displayed on our website is aimed at showing the effect of long term thermal stabilization, ie. heat transfer from the LED chip and PCB to the heat sink. Should the thermal exchange channel be poor, it can be that the temperature of the LED will settle at a too high temperature, which would lead to the situation displayed by the curve "LED with poor thermal management". The time scale for this effect is indeed in the seconds range and the curve was plotted accordingly, which can give the impression that the rise time is slow. This rise time is however much shorter than visible on this curve and is typically of a few 10's nanoseconds. The main limitation in this case is the capacitance of the LED and thermal effects as plotted on the aforementioned curve will only be relevant at on a much longer time scale and much lower in magnitude than the capacitance related limitation of the rise time.
Poster:LuHongyang
Posted Date:2012-07-16 03:08:26.0
The figure in the tab 'Stability' shows that the rise time of these LEDs is several seconds. So does it mean that LED cannot be fully charged when modulated at a high frequency? If so, that will introduce instability to the power in that situation, I suppose. Thanks a lot. Hongyang.
Poster:jvigroux
Posted Date:2012-07-13 12:05:00.0
A response from Julien at Thorlabs: Thank you for your inquiry! The radiation characteristics of the LED, which corresponds to the variation of the emitted intensity with the angular departure from the optical axis, is plotted for all our LED's in the mfg spec sheets. Those spec sheet can be downloaded by clicking on the red document icon next to the product number of the LED.
Poster:danielramm
Posted Date:2012-07-13 14:58:52.0
Do you have information about the angle in which the light is emitted by the uncollimated mounted LED? Iam using the 455nm und the 850nm source.
Poster:jvigroux
Posted Date:2012-05-30 06:45:00.0
A response from Julien at Thorlabs: thank you for your inquiry! the 500mA that are specified by the manufacturer of the LED in the MFG spec sheet apply only for the bare LED. Due to the fact that the LED is mounted on a large heat sink and that the thermal coupling to it is very good, the LED can be used in constant mode at currents up to 700mA.
Poster:andrew_yablon
Posted Date:2012-05-29 17:24:25.0
What is the practical current limit for running the M1050L2 with the LEDDB1? In one place you have listed this limit as 700 mA and in a different place you have listed it as 500 mA. What is the correct maximum current limit? Thank you, Andrew Yablon andrew_yablon@interfiberanalysis.com
Poster:jvigroux
Posted Date:2012-04-23 03:56:00.0
A response from Julien at Thorlabs: Thank you for your inquiry. We can provide a Zemax model for the LED chip mounted in this LED. I will contact you directly to send you the information per email.
Poster:tcohen
Posted Date:2012-04-19 09:17:00.0
Response from Tim at Thorlabs: Thank you for your feedback! We will look into providing this for you and will update you shortly.
Poster:arb
Posted Date:2012-04-18 15:32:24.0
Can you provide optical power density curves for M940L2? (expressed in W/m2 or W/m2/um)
Poster:jvigroux
Posted Date:2011-12-06 05:58:00.0
A response from Julien at Thorlabs: Thank you for your inquiry! The approach you intend to use is unfortunately only partially possible. The problem is that the voltage drops across the LEDs will add up when they are connected in series. The specified operating voltage for this LED is 6.8V. As the compliance voltage of the LEDD1B is typically 12V, you will be only able to connect a maximum of two LEDs in series, unless you reduce drastically the current. I will contact you directly to discuss your application and see which approach is the best suited for your application.
Poster:sborn
Posted Date:2011-12-05 17:29:12.0
I have four M505L1 mounted LEDs that I would like to connect in series with one LEDD1B. How should I wire them? Also, I've removed the wiring from three of the M505L1 mounts, but the LED is still attached.
Poster:bdada
Posted Date:2011-10-12 12:49:00.0
Response from Buki at Thorlabs: Thank you for your feedback. We will expand the information on our webpage. While we work on updating this page, please contact TechSupport@thorlabs.com for assistance in matching the catalog lens to the collimation adapter.
Poster:
Posted Date:2011-10-12 09:56:51.0
First bullet on Collimation Adapter is "AR-Coated Aspheric Lens with Low f#" but i couldn't find the f# or NA, this would be nice to know. A link to the lens if it is a catalog lens would also help.
Poster:
Posted Date:2011-10-12 09:51:12.0
Is there data available on the angular distribution of the output of these LEDs.
Poster:jjurado
Posted Date:2011-08-17 14:30:00.0
Response from Javier at Thorlabs to dheidbrink: The length of the pins is 5 mm (+/-0.5mm).
Poster:dheidbrink
Posted Date:2011-08-16 18:05:32.0
How long are the M8 leads on the mounted LEDs?
Poster:jjurado
Posted Date:2011-07-11 09:04:00.0
Response from Javier at Thorlabs to last poster: Thank you very much for your feedback! We will embark on a project to provide the FWHM values for out mounted LEDs and will post the results on the web shortly. In the meantime, please contact us at techsupport@thorlabs.com if you have any further questions or comments.
Poster:jjurado
Posted Date:2011-07-08 17:11:00.0
Response from Javier at Thorlabs to last poster: Thank you very much for your feedback. You are correct. A divergence of 3 degrees is a better practical assessment than my previously mentioned 1 degree, which is a best case, theoretical value. I apologize if this information was misleading. Please contact us at techsupport@thorlabs.com if you have any further questions or comments.
Poster:
Posted Date:2011-07-08 10:11:31.0
*** Response from Javier at Thorlabs to skooi: Thank you very much for contacting us. The divergence of these mounted LEDs is in the order of 1 degree. The large, thick condenser used in this assembly generates a circular output beam, rather than a projection of the LED emitters. This has not been my experience at all. The divergence of our M660L2 is on the order of 3 and it is definitely imaging the LED, and not a uniform circular beam spot.
Poster:
Posted Date:2011-07-08 10:06:59.0
it would be helpful if you would explicitly state the FWHM of the LED output.
Poster:jvigroux
Posted Date:2011-05-12 11:40:00.0
A response form Julien at Thorlabs: Dear Sewan, the use of another driver than the Thorlabs driver is of course possible. The simplest design is a DC current source. A pulse controlled approach is of course also possible. I will contact you directly in order to see what are the requirements of your experiment and what you had in mind for the LED control.
Poster:sfan
Posted Date:2011-05-10 23:15:18.0
Dear Thor Labs Sales Associate, We are planning to purchase the model M505L1 led module. It seems that to provide power to the led unit, a Thor Labs led driver is needed. Can another type of driver be used to provide power to the led, for example, through a pulse controlled MOSFET transistor ? Please advice as to the above. Thank you for your help. Sewan Fan Hartnell College Salinas, CA
Poster:jjurado
Posted Date:2011-04-04 17:38:00.0
Response from Javier at Thorlabs to skooi: Thank you very much for contacting us. The divergence of these mounted LEDs is in the order of 1 degree. The large, thick condenser used in this assembly generates a circular output beam, rather than a projection of the LED emitters.
Poster:skooi
Posted Date:2011-04-04 12:45:09.0
How collimated should we expect to be able to make the light out of these LEDs? If we purchase one of the collimation lenses, does the light collimate as a circular beam or just as the square shape of the LED?
Poster:jjurado
Posted Date:2011-02-18 17:44:00.0
Response from Javier at Thorlabs to denis.battarel: Thank you for submitting your inquiry. There are a couple of options. You can use the LEDD1B driver, which has a maximum output of 1200 mA, or you can opt for the DC2100, whose maximum output current is 2000 mA. Both of these drivers can be operated in constant current mode, trigger mode, and modulation mode. Regarding the condenser lens, we would recommend using the ACL2520. Its diameter is 25 mm, so it is compatible with our SM1 lens tubes. LEDD1B http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=2616&pn=LEDD1B#3018 DC2100 http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=4003&pn=DC2100 ACL2520 http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=3835&pn=ACL2520
Poster:denis.battarel
Posted Date:2011-02-18 15:01:03.0
I would like to use the LCWHL2 white light LED with SM1 tube but what power supply can I use? I need maximum light flux, so the 1600mA are needed. I do not need to modulate the light. I have seen on your web site that previous driver going to 1200mW is obsolete but have not seen the new driver. What condenser lens would you recommend? I need it to fit in a SM1 tube.
Poster:Thorlabs
Posted Date:2010-10-14 16:29:12.0
Response from Javier at Thorlabs to godina: we are discussing internally the development of a mounted 560 nm LED. I will contact you directly with more details.
Poster:godina
Posted Date:2010-10-14 10:28:30.0
Are you guys coming out with an M560L2? (mounted LED, 560nm pure green?
Poster:Thorlabs
Posted Date:2010-09-02 13:48:38.0
Response from Javier at Thorlabs to mjg: we offer a version of the M365L2 mounted LED which includes a condenser lens and a mounting adapter for Olympus BX & IX microscopes. The part number is M365L2-C1: http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=2615
Poster:mjg
Posted Date:2010-09-01 18:00:01.0
Hello, Im looking to mount this unit onto the condenser column of an Olympus IX71 (i.e. to use it as a replacement for a white light source). Can you suggest a mounting solution? Thank you.
Poster:apalmentieri
Posted Date:2010-03-04 10:03:37.0
A response from Adam at Thorlabs to jrguest: The size of the LED on this device is 1x1mm^2. We will contact you directly so we can clarification on the optical invariant that you are looking for.
Poster:jrguest
Posted Date:2010-03-03 19:52:14.0
What is the size of the LED or LEDs on the device? I would like to know the optical invariant of this source.
Poster:apalmentieri
Posted Date:2010-02-17 08:48:10.0
A response from Adam at Thorlabs to Michael: It is possible to get an LED that outputs 385nm with a higher output power. I will contact you directly to get more information about your application.
Poster:michael.spurr
Posted Date:2010-02-16 06:25:57.0
Would it be possible to get an M385L1 that outputs a similar power (or as close as possible) to the M405L1? Thanks.
Poster:apalmentieri
Posted Date:2010-01-29 11:07:15.0
A response from Adam at Thorlabs to Michael: Thanks for the clarification. Just to clarify my previous statement, if you over drive the current beyond 1A, you will damage the LED beyond repair.
Poster:michael.spurr
Posted Date:2010-01-29 06:53:11.0
A response to Adam at Thorlabs: Sorry, I actually meant 1A (silly typo). The LED is currently being run at a constant voltage of just under 5V, so it is the current that I am concerned with. Thanks for the reply.
Poster:apalmentieri
Posted Date:2010-01-27 09:18:16.0
A response from Adam at Thorlabs to Michael: Typically LEDs are run at 5V or 12V. Using a voltage higher than 1V will not damage the LED if you can limit the amount of current reaching the device. LEDs are current run devices and will be damaged beyond repair if drive them with too much current. The M405L1 cannot be driven above 1000mA.
Poster:michael.spurr
Posted Date:2010-01-27 03:50:48.0
Can you tell me the risks associated with over-driving the M405L1 LED above 1V? What are the likely consequences in terms of output power and potential damage and how far above 1V would you have to go? Thanks.
Poster:klee
Posted Date:2009-10-05 16:14:12.0
A response from Ken at Thorlabs: Yes, these mounted LEDs are also plug and play compatible with the new DC2100.
Poster:acable
Posted Date:2009-10-03 15:43:41.0
Is this series of mounted LEDs plug and play compatible with the DC2100 driver.
Poster:javier
Posted Date:2009-05-06 12:56:23.0
Response from Javier at Thorlabs to booth: we currently do not offer a mounted LED with EEPROM in the 900-1500 nm range, but we can quote a special operating at 940 nm
Poster:booth
Posted Date:2009-05-05 16:27:53.0
I would like a product like the M850L1 LED source, but with longer wavelength. Something >900 and <1500nm.
Poster:Laurie
Posted Date:2008-10-31 09:50:24.0
Response from Laurie at Thorlabs to atashtoush: To modulate the MBLED you will need the LEDD1 T-Cube LED driver and a TPS001 15 V power supply. You will need to provide your own signal generator with the following requirements: Minimum Strobe Pulse Width: 50 µs Strobe Turn-On / Turn-Off Time: <25 µs. The maximum flash rate obtainable with the LEDD1 with full 100% modulation will be around 3 kHz with a maximum strobe effect up to 10 kHz. If you need to modulate at higher rates you would need to consider a laser driver. Depending on the driver, you can indirectly modulate to about 250 kHz. Above that value you need to RF modulation directly into the LED anode.
Poster:atashtoush
Posted Date:2008-10-30 15:13:41.0
Hi, can you tell me how can we modulate this led using square wave because. what voltage and offset ..... thanks
Light Emitting Diode (LED) Selection Guide
(Click
Representative
Photo to Enlarge;
Not to Scale)
Type Unmounted
LEDs
PCB-
Mounted LEDs
Heatsink-
Mounted LEDs
Collimated LEDs
for Microscopy

(Item # Prefixa)
Fiber-
Coupled LEDs
b
4-Wavelength LED
Source Options
c
Modulated LEDs for
FLIM Microscopy
LED Arrays
Wavelength
245 nm LED245W
(0.07 mW)
- - - - - - -
255 nm LED255J
(1 mW Min)
- - - - - - -
260 nm LED260W
(0.3 mW)
LED260J
(1 mW Min)
- - - - - - -
265 nm LED265W
(0.3 mW)
- - - - - - -
275 nm LED275W
(0.8 mW)
LED275J
(1 mW Min)
- - - - - - -
280 nm LED280J
(1 mW Min)
M280D2
(25 mW Min)
M280L3
(25 mW Min)
- - - - -
285 nm LED285W
(0.8 mW)
- - - - - - -
290 nm LED290W
(0.8 mW)
- - - - - - -
300 nm LED300W
(0.5 mW)
- - - - - - -
310 nm - M310D2
(25 mW Min)
M310L3
(25 mW)
- - - - -
315 nm LED315W
(0.6 mW)
- - - - - - -
340 nm LED341W
(0.33 mW)
M340D2
(10 mW Min)
M340L3
(10 mW Min)
- - - - -
365 nm - M365D1
(190 mW Min)
M365L2
(190 mW Min)
M365L2
(60 mW)d
M365F1
(4.1 mW)
Available
(85 mW)
DC3100-365 LIU365A
(31 mW)
370 nm LED370E
(2.5 mW)
- - - - - - -
375 nm - M375D2
(387 mW Min)
M375L3
(387 mW Min)
- M375F2
(4.23 mW)
- - -
385 nm - M385D1
(270 mW Min)
M385L2
(270 mW Min)
M385L2
(90 mW)d
M385F1
(10.7 mW)
Available
(95 mW)
- -
395 nm - M395D3
(400 mW Min)
M395L4
(400 mW Min)
- M395F3
(6.8 mW)
- - -
405 nm LED405E
(10 mW)
M405D1
(410 mW Min)
M405L2
(410 mW Min)
M405L2
(260 mW)d
M405F1
(3.7 mW)
Available
(95 mW)
DC3100-405 -
420 nm - M420D2
(750 mW Min)
M420L3
(750 mW Min)
- M420F2
(16.2 mW)
Available
(290 mW)
- -
455 nm - M455D2
(900 mW Min)
M455L3
(900 mW Min)
M455L3
(360 mW)d
M455F1
(11.0 mW)
Available
(310 mW)
- -
465 nm LED465E
(20 mW)
- - - - - - -
470 nm LED470L
(170 mW)
M470D2
(650 mW Min)
M470L3
(650 mW Min)
M470L3
(250 mW)d
M470F1
(10.1 mW)
Available
(250 mW)
DC3100-470 LIU470A
(253 mW)
490 nm - M490D2
(200 mW Min)
M490L3
(200 mW Min)
- M490F2
(2.0 mW)
Available
(50 mW)
- -
505 nm - M505D2
(400 mW Min)
M505L3
(400 mW Min)
M505L3
(150 mW)d
M505F1
(8.0 mW)
Available
(170 mW)
- -
525 nm LED525E
(2.6 mW Max)
LED528EHP
(7 mW)
- - - - - - LIU525A
(111 mW)
530 nm - M530D2
(350 mW Min)
M530L3
(350 mW Min)
M530L3
(130 mW)d
M530F1
(5.1 mW)
Available
(100 mW)
- -
565 nm - M565D2
(880 mW Min)
M565L3
(880 mW Min)
M565F1
(2.0 mW)
Available
(106 mW)
- -
590 nm LED591E
(2 mW)
M590D2
(160 mW Min)
M590L3
(160 mW Min)
M590L3
(60 mW)d
M590F1
(3.2 mW)
Available
(65 mW)
- LIU590A
(109 mW)
595 nm - M595D2
(445 mW Min)
M595L3
(445 mW Min)
- - - - -
617 nm - M617D2
(600 mW Min)
M617L3
(600 mW Min)
M617L3
(230 mW)d
M617F1
(10.8 mW)
Available
(210 mW)
- -
625 nm - M625D2
(700 mW Min)
M625L3
(700 mW Min)
M625L3
(270 mW)d
M625F1
(10.1 mW)
Available
(240 mW)
- -
630 nm - - - - - - DC3100-630 LIU630A
(208 mW)
635 nm LED631E
(4 mW)
LED635L
(170 mW)
- - - - - - -
639 nm LED630E
(7.2 mW)
- - - - - - -
660 nm - M660D1
(270 mW Min)
M660L3
(270 mW Min)
M660L3
(370 mW)d
M660F1
(14.5 mW)
Available
(210 mW)
- -
730 nm - M730D2
(515 mW Min)
M730L4
(515 mW Min)
M730L4
(165 mW)d
- - - -
740 nm - - - - M740F2
(6.0 mW)
- - -
780 nm LED780E
(18 mW)
M780D2
(200 mW Min)
M780L3
(200 mW Min)
M780L3
(130 mW)d
M780F2
(7.5 mW)
- - LIU780A
(315 mW)
810 nm - M810D2
(325 mW Min)
M810L3
(325 mW Min)
M810L3
(210 mW)d
M810F2
(6.5 mW)
- - -
850 nm LED851W
(8 mW)
LED851L
(13 mW)
M850D2
(900 mW Min)
M850L3
(900 mW Min)
M850L3
(330 mW)d
M850F2
(13.4 mW)
- - LIU850A
(322 mW)
870 nm LED870E
(22 mW)
- - - - - - -
880 nm - M880D2
(300 mW Min)
M880L3
(300 mW Min)
- M880F2
(3.4 mW)
- - -
910 nm LED910E
(12 mW)
- - - - - - -
940 nm LED940E
(18 mW)
M940D2
(800 mW Min)
M940L3
(800 mW Min)
M940L3
(320 mW)d
M940F1
(6.5 mW)
- - -
970 nm - M970D2
(35 mW Min)
M970L3
(35 mW Min)
- M970F2
(0.3 mW)
- - -
1050 nm LED1050E
(2.5 mW)
M1050D1
(50 mW Min)
M1050L2
(50 mW Min)
- M1050F1
(1.4 mW)
- - -
1070 nm LED1070E
(7.5 mW)
- - - - - - -
1200 nm LED1200E
(2.5 mW)
M1200D2
(30 mW Min)
M1200L3
(30 mW Min)
- - - - -
1300 nm LED1300E
(2 mW)
M1300D2
(25 mW Min)
M1300L3
(25 mW Min)
- - - - -
1450 nm LED1450E
(2 mW)
M1450D2
(31 mW Min)
M1450L3
(31 mW Min)
- - - - -
1550 nm LED1550E
(2 mW)
M1550D2
(31 mW Min)
M1550L3
(31 mW Min)
- - - - -
1650 nm LED1600P
(1.2 mW)
- - - - - - -
1750 nm LED1700P
(1.2 mW Quasi-CW,
30 mW Pulsed)
- - - - - - -
1850 nm LED1800P
(0.9 mW Quasi-CW,
20 mW Pulsed)
- - - - - - -
1950 nm LED1900P
(1.0 mW Quasi-CW,
25 mW Pulsed)
- - - - - - -
2050 nm LED2050P
(1.1 mW Quasi-CW,
28 mW Pulsed)
- - - - - - -
2350 nm LED2350P
(0.8 mW Quasi-CW,
16 mW Pulsed)
- - - - - - -
4200 nm LED4300P
(0.01 mW Quasi-CW, 0.2 mW Pulsed)
- - - - - - -
4500 nm LED4600P
(0.006 mW Quasi-CW,
0.12 mW Pulsed)
- - - - - - -
467.5 nm,
525 nm,
and 627.5 nm
LEDRGBE
(5.8 mW,
6.2 mW,
and 3.1 mW)
- - - - - - -
470 - 850 nm - MBB1D1
(70 mW Min)
MBB1L3
(70 mW Min)
- MBB1F1
(1.2 mW)
- - -
6500 K
(Cold White)
LEDWE-15
(13 mW)
MCWHD2
(800 mW Min)
MCWHL5
(800 mW Min)
MCWHL5
(320 mW)d
- - - LIUCWHA
(250 mW)
5600 K
(Cold White)
- - - MCWHF1
(7.0 mW)
- -
3000 K
(Warm White)
- MWWHD1
(500 mW Min)
MWWHL3
(500 mW Min)
- MWWHF1
(7.0 mW)
- - -
  • These Collimated LEDs are compatible with the standard and epi-illumination ports on the following microscopes: Olympus BX/IX (Item # Suffix: -C1), Leica DMI (Item # Suffix: -C2), Zeiss Axioskop (Item # Suffix: -C4), and Nikon Eclipse (Bayonet Mount, Item # Suffix: -C5).
  • Typical power when used with MM Fiber with Ø400 µm core, 0.39 NA.
  • Our LED4D 4-Wavelength LED Source is available with select combinations of the LEDs at these wavelengths.
  • Typical power for LEDs with the Leica DMI collimation package (Item # Suffix: -C2).

High-Power Mounted LEDs with EEPROM

MWWHL3 in an SM1RC Slip Ring
Click to Enlarge
MWWHL3 LED Mounted in an SM1RC Slip Ring
  • Integrated EEPROM for Automated LED Settings
  • Long Lifetimes (See Specs and Stability Tab for Details)
    • >10,000 Hours for LEDs with a Nominal Wavelength of ≥365 nm
    • >500 Hour Lifetime for LEDs with a Nominal Wavelength of ≤340 nm
  • Stable Output Intensity by Optimized Thermal Management
  • Output can be Modulated with Suitable Controller (See the LED Drivers Tab)
  • Compatible with Thorlabs' SM1 Lens Tubes
  • Fits Inside a 30 mm Cage System
  • Cable Length: 2 m

Our mounted LEDs consist of a high-power LED mounted to the end of a heatsink equipped with internal SM1 (1.035"-40) threads. Hence, these LEDs are directly compatible with Thorlabs' SM1 lens tubes.

Please note that our LEDs with wavelengths from 280 nm to 420 nm radiate intense UV light during operation. Precautions must be taken to prevent looking directly at the UV light and UV light protective glasses must be worn to avoid eye damage. Exposure of the skin and other body parts to the UV light should be avoided. High-power mounted LEDs are not intended for use in household illumination applications.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
M280L3 Support Documentation
M280L3UV (280 nm) Mounted LED, 350 mA, 25 mW (Min)
$1,230.00
Today
M310L3 Support Documentation
M310L3UV (310 nm) Mounted LED, 350 mA, 25 mW (Min)
$1,230.00
Today
M340L3 Support Documentation
M340L3Customer Inspired!UV (340 nm) Mounted LED, 80 mA, 10 mW (Min)
$1,100.00
Today
M365L2 Support Documentation
M365L2UV (365 nm) Mounted LED, 700 mA, 190 mW (Min)
$469.00
Today
M375L3 Support Documentation
M375L3Customer Inspired!UV (375 nm) Mounted LED, 700 mA, 387 mW (Min)
$247.00
Today
M385L2 Support Documentation
M385L2UV (385 nm) Mounted LED, 700 mA, 270 mW (Min)
$469.00
Today
M395L4 Support Documentation
M395L4NEW!UV (395 nm) Mounted LED, 500 mA, 400 mW (Min)
$283.00
Today
M405L2 Support Documentation
M405L2UV (405 nm) Mounted LED, 1000 mA, 410 mW (Min)
$469.00
Today
M420L3 Support Documentation
M420L3Violet (420 nm) Mounted LED, 1000 mA, 750 mW, (Min)
$283.00
Today
M455L3 Support Documentation
M455L3Royal Blue (455 nm) Mounted LED, 1000 mA, 900 mW (Min)
$268.00
Today
M470L3 Support Documentation
M470L3Blue (470 nm) Mounted LED, 1000 mA, 650 mW (Min)
$268.00
Today
M490L3 Support Documentation
M490L3Blue (490 nm) Mounted LED, 350 mA, 200 mW (Min)
$268.00
Today
M505L3 Support Documentation
M505L3Cyan (505 nm) Mounted LED, 1000 mA, 400 mW (Min)
$268.00
Today
M530L3 Support Documentation
M530L3Green (530 nm) Mounted LED, 1000 mA, 350 mW (Min)
$268.00
Today
M565L3 Support Documentation
M565L3Lime (565 nm) Mounted LED, 1000 mA, 880 mW (Min)
$211.00
Today
M590L3 Support Documentation
M590L3Amber (590 nm) Mounted LED, 1000 mA, 160 mW (Min)
$193.00
Today
M595L3 Support Documentation
M595L3Phosphor-Converted Amber (595 nm) Mounted LED, 700 mA, 445 mW (Min)
$211.00
Today
M617L3 Support Documentation
M617L3Orange (617 nm) Mounted LED, 1000 mA, 600 mW (Min)
$193.00
Today
M625L3 Support Documentation
M625L3Red (625 nm) Mounted LED, 1000 mA, 700 mW (Min)
$193.00
Today
M660L3 Support Documentation
M660L3Deep Red (660 nm) Mounted LED, 1200 mA, 640 mW (Min)
$211.00
Today
M730L4 Support Documentation
M730L4NEW!Far Red (730 nm) Mounted LED, 1000 mA, 515 mW (Min)
$190.00
Today
M780L3 Support Documentation
M780L3IR (780 nm) Mounted LED, 800 mA, 200 mW (Min)
$211.00
Today
M810L3 Support Documentation
M810L3NEW!IR (810 nm) Mounted LED, 500 mA, 325 mW (Min)
$196.67
Today
M850L3 Support Documentation
M850L3IR (850 nm) Mounted LED, 1000 mA, 900 mW (Min)
$211.00
Today
M880L3 Support Documentation
M880L3IR (880 nm) Mounted LED, 1000 mA, 300 mW (Min)
$211.00
Today
M940L3 Support Documentation
M940L3IR (940 nm) Mounted LED, 1000 mA, 800 mW (Min)
$211.00
Today
M970L3 Support Documentation
M970L3IR (970 nm) Mounted LED, 600 mA, 35 mW (Min)
$211.00
Today
M1050L2 Support Documentation
M1050L2Customer Inspired!IR (1050 nm) Mounted LED, 700 mA, 50 mW (Min)
$227.00
Today
M1200L3 Support Documentation
M1200L3Customer Inspired!IR (1200 nm) Mounted LED, 700 mA, 30 mW (Min)
$282.00
Today
M1300L3 Support Documentation
M1300L3Customer Inspired!IR (1300 nm) Mounted LED, 500 mA, 25 mW (Min)
$282.00
Today
M1450L3 Support Documentation
M1450L3IR (1450 nm) Mounted LED, 700 mA, 31 mW (Min)
$282.00
Today
M1550L3 Support Documentation
M1550L3Customer Inspired!IR (1550 nm) Mounted LED, 700 mA, 31 mW (Min)
$282.00
Today
MBB1L3 Support Documentation
MBB1L3Broadband (470 - 850 nm) Mounted LED, 500 mA, 70 mW (Min)
$494.00
Today
MWWHL3 Support Documentation
MWWHL3Warm White Mounted LED, 1000 mA, 500 mW (Min)
$193.00
3-5 Days
MCWHL5 Support Documentation
MCWHL5Cold White Mounted LED, 1000 mA, 800 mW (Min)
$193.00
Today

Collimation Adapters with AR-Coated Ø50 mm Aspheric Lenses

Olympus Collimation Adapter
Click for Details

Installation of Collimation Adapter to Mounted LED
Using SM2T2 and SM1A2
  • AR-Coated Aspheric Lens with Low f/# (Approximately 0.8)
  • Compatible with Select Leica, Nikon, Olympus, or Zeiss Microscopes
  • Easily Adjust Beam Collimation / Focus
  • Requires SM2T2 Coupler and SM1A2 Adapter (Each Sold Separately) when Used with the LEDs Above

Thorlabs offers collimation adapters with Ø2" AR-coated aspheric condenser lenses (EFL: 40 mm) for collimating the output from our mounted LEDs. Two AR coating ranges (350 - 700 nm and 650 - 1050 nm) and four different collimator housings are available. Each housing is designed to mate to the illumination port on selected Olympus*, Leica, Nikon, or Zeiss microscopes. Compatible microscopes are listed in the Collimation Adapter Selection Guide table below.

Using an adapter with a substrate or AR coating that does not transmit the wavelength of your LED is not recommended. The deep UV LEDs (M280L3, M310L3, M340L3) require a lens fabricated from UV Fused Silica, since many standard varieties of glass do not transmit below 350 nm. IR LEDs that emit beyond 1050 nm (M1200L3, M1300L3, M1450L3, M1550L3) can be collimated using an uncoated condenser lens; the ACL5040 is an uncoated version of the Ø2" lenses used in the collimation packages below that has a wavelength range of 380 - 2100 nm. Alternatively, the ACP collimation adapter below accepts user-supplied Ø1" collimation optics and includes a thread adapter that converts the internally M34 x 0.5 threaded output to our SM2 (2.035"-40) thread standard. See the Collimation tab above for more information on collimation options.

The LED sources described above can be fitted to the collimators by using an SM2T2 Coupler and SM1A2 Adapter (not included) as shown in the image at right. This assembly can be easily adapted to different LED sources by unscrewing the LED housing.

If compatibility with SM1 (1.035"-40) threading is preferable to compatibility with a microscope for your application, the ACP collimation adapters available below can be used with the SM1A38 M34 x 0.5 to SM1 thread adapter.

* Please note that due to the optical design of the transmitted lamphouse port of the BX and IX microscopes it may be necessary to purchase a separate adapter which is available from Olympus.

Collimation Adapter Selection Guide
Compatible Microscopes Olympus BX & IXa Leica DMI Zeiss Axioskop Nikon Eclipse
AR Coating
Range of
Condenser Lens
Lens
Focal
Length
Lens Item # Collimating Adapters for Olympus BX \<br /\>& IX Microscopes
Click to Enlarge
Collimating Adapters for Leica DMI Microscopes
Click to Enlarge
Collimating Adapters for Zeiss Axioskop Microscopes
Click to Enlarge
Collimating Adapters for Nikon Eclipse Ti and Ni-E Microscopes
Click to Enlarge
350 - 700 nm 40.0 mm ACL5040-A COP1-A COP2-A COP4-A COP5-A
650 - 1050 nm 40.0 mm ACL5040-B COP1-B COP2-B COP4-B COP5-B
  • Please note that due to the optical design of the transmitted lamphouse port of the BX and IX microscopes it may be necessary to purchase a separate adapter which is available from Olympus.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
COP1-A Support Documentation
COP1-ACollimation Adapter for Olympus BX & IX, AR Coating: 350 - 700 nm
$181.00
Today
COP1-B Support Documentation
COP1-BCollimation Adapter for Olympus BX & IX, AR Coating: 650 - 1050 nm
$211.00
Today
COP2-A Support Documentation
COP2-ACollimation Adapter for Leica DMI, AR Coating: 350 - 700 nm
$181.00
Today
COP2-B Support Documentation
COP2-BCollimation Adapter for Leica DMI, AR Coating: 650 - 1050 nm
$211.00
Today
COP4-A Support Documentation
COP4-ACollimation Adapter for Zeiss Axioskop, AR Coating: 350 - 700 nm
$181.00
Today
COP4-B Support Documentation
COP4-BCollimation Adapter for Zeiss Axioskop, AR Coating: 650 - 1050 nm
$211.00
Today
COP5-A Support Documentation
COP5-ACollimation Adapter for Nikon Eclipse, AR Coating: 350 - 700 nm
$214.00
Today
COP5-B Support Documentation
COP5-BCollimation Adapter for Nikon Eclipse, AR Coating: 650 - 1050 nm
$249.00
Today
SM1A2 Support Documentation
SM1A2Adapter with External SM1 Threads and Internal SM2 Threads
$24.00
Today
SM2T2 Support Documentation
SM2T2SM2 (2.035"-40) Coupler, External Threads
$34.00
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Collimation Adapters for Ø1" or Ø25 mm Optics

Item #Included
Lens
AR Coating
Wavelength Range
Lens Focal
Length
ACP2520-A ACL2520-A 350 - 700 nm 20.0 mm
ACP2520-B ACL2520-B 650 - 1050 nm 20.0 mm
ACPa - - -
  • The ACP does not include a collimation optic, allowing user-supplied optics to be integrated with Thorlabs' high-power mounted LEDs.
  • Integrate a Ø1" or Ø25 mm Collimation Optic with Thorlabs' High-Power Mounted LEDs
  • Three Versions Available:
    • ACP2520-A Includes Ø25 mm AR-Coated Lens for 350 - 700 nm
    • ACP2520-B Includes Ø25 mm AR-Coated Lens for 650 - 1050 nm
    • ACP Mechanical Housing without Lens Accepts User-Supplied Ø1" or Ø25 mm Optics
  • Adjust and Set Lens Position via Rotating Ring with Locking Setscrew
  • Removable External M34 x 0.5 to Internal SM2 (2.035"-40) Thread Adapter
  • Compatible with Thorlabs' Internally SM2-Threaded Microscope Port Adapters
LED Collimation Adapter
Click to Enlarge

The ACP2520-A Installed on a High-Power LED

These adapters allow a Ø1" or Ø25 mm collimation optic to be integrated with Thorlabs' high-power mounted LEDs. The input of each housing is externally SM1 (1.035"-40) threaded to mate with the housing of our high-power LEDs, while the output has internal M34 x 0.5 threads. An external M34 x 0.5 to internal SM2 adapter is included so that these collimation adapters can be used with our SM2-threaded microscope adapters or other SM2-threaded components. Thorlabs also offers an M34 x 0.5 external to SM1 (1.035"-40) thread adapter (Item # SM1A38) that can be used to integrate the collimation adapters with SM1-threaded components.

The ACP2520-A and ACP2520-B include a removable AR-coated aspheric condenser lenses for 350 - 700 nm and 650 - 1050 nm, respectively. The ACP does not include a collimation optic, allowing user-supplied optics to be integrated with Thorlabs' high-power mounted LEDs. The lens is mounted in an inner carriage that can be translated up to 11 mm (0.43") along the Z-axis by turning the adjustment ring (engraved with the item # in the photos to the left) and locked into position by turning the locking screw on the side of the adjustment ring with a 2 mm (5/64") hex key. Lines with a 2 mm spacing are engraved on the housing as a rough guide for how far the carriage has been translated. Each collimation adapter also includes an extra-thick SM1-threaded retaining ring that allows an aspheric condenser lens to be mounted with our SPW602 spanner wrench.

Inserting or Removing Optics
To insert or remove an optic in these collimation adapters, use the adjustment ring to translate the inner carriage to the M34 x 0.5-threaded end of the housing. Remove the included SM1-threaded retaining ring using an spanner wrench. If there is a lens installed already, remove it from the carriage. Insert another Ø1" or Ø25 mm optic into the carriage, and use the retaining ring to secure it.

Using an adapter with a substrate or AR coating that does not transmit the wavelength of your LED is not recommended. The deep UV LEDs (M280L3, M310L3, M340L3) require a lens fabricated from UV Fused Silica, since many standard varieties of glass do not transmit below 350 nm. IR LEDs that emit beyond 1050 nm (M1200L3, M1300L3, M1450L3, M1550L3) can be collimated using an uncoated condenser lens, such as the Ø25 mm ACL2520U, that has a wavelength range of 380 - 2100 nm.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
ACP2520-A Support Documentation
ACP2520-AAdjustable Collimation Adapter with AR-Coated Lens for 350 - 700 nm
$194.44
Today
ACP2520-B Support Documentation
ACP2520-BAdjustable Collimation Adapter with AR-Coated Lens for 650 - 1050 nm
$194.44
Today
ACP Support Documentation
ACPAdjustable Collimation Adapter for Ø1" or Ø25 mm Optic
$175.56
Today

Mounted LED Mating Connector

  • Pico (M8) Receptacle
  • Female 4-Pin for Front Mounting
  • 0.5 m Long, 24 AWG Wires
  • M8 x 0.5 Panel Mount Thread
  • IP 67 and NEMA 6P Rated

The CON8ML-4 connector can be used to mate mounted LEDs featured on this page to user-supplied power supplies. We also offer a male 4-Pin M8 connector cable (Item # CAB-LEDD1).

PinColorSpecification Pin Assignment
1 Brown LED Anode
2 White LED Cathode
3 Black EEPROM GND
4 Blue EEPROM IO
CON8ML-4
CON8ML-4 Shown Connected to the 4-Pin M8 Plug of Mounted LED
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
CON8ML-4 Support Documentation
CON8ML-44-Pin Female Mating Connector for Mounted LEDs
$30.00
Today
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