Mounted High-Power LEDs
(Click for Spectrum)a
|M365L2||UV||365 nm||190 mW|
|M385L2||UV||385 nm||270 mW|
|M405L2||UV||405 nm||410 mW|
|M420L2||Violet||420 nm||250 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|
|M565L2||Green Yellow||565 nm||100 mW|
|M590L3||Amber||590 nm||160 mW|
|M617L3||Orange||617 nm||600 mW|
|M625L3||Red||625 nm||700 mW|
|M660L3||Deep Red||660 nm||640 mW|
|M735L3||Far Red||735 nm||260 mW|
|M780L3||IR||780 nm||200 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|
|MBB1L3c||Broadband||470 - 850 nmd||70 mW|
|MWWHL3e||Warm White||3000 Kf||500 mW|
|MCWHL5e||Cold White||6500 Kf||800 mW|
Mounted LED Features
- Wavelengths Ranging from 365 nm to 1050 nm
- Warm White, Cold White, and Broadband LEDs Also Available
- Integrated EEPROM Stores LED Operating Parameters
- Thermal Properties Optimized for Stable Output Power
- Internal SM1 (1.035"-40) Threading for Mounting
- 4-Pin Female Mating Connector for Custom Power Supplies can be Purchased Separately
- Collimation Adapters Compatible with Selected Leica, Nikon, Olympus, and Zeiss Microscopes Available
- 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 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. It offers a 280 nm FWHM bandwidth, 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 and 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. Please see the Collimated LED page for more information.
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' flexible 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.
These LEDs can be powered with a Thorlabs LEDD1B, DC2100, DC4100, or DC4104 LED driver (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.
(Click for Spectrum)a
|Nominal Wavelengtha,b||Minimum LED Power|
|Typical LED Power Outputa||Maximum Current |
|Forward Voltage||Bandwidth (FWHM)||Typical Lifetime|
|M365L2||UV||365 nm||190 mW||360 mW||700 mA||4.4 V||7.5 nm||>10,000 h|
|M385L2||UV||385 nm||270 mW||430 mW||700 mA||4.3 V||10 nm||>10,000 h|
|M405L2||UV||405 nm||410 mW||760 mW||1000 mA||3.8 V||13 nm||100,000 h|
|M420L2||Violet||420 nm||250 mW||290 mW||500 mA||3.6 V||12 nm||>10,000 h|
|M455L3||Royal Blue||455 nm||900 mW||1020 mW||1000 mA||3.2 V||18 nm||100,000 h|
|M470L3||Blue||470 nm||650 mW||710 mW||1000 mA||3.2 V||25 nm||100,000 h|
|M490L3||Blue||490 nm||200 mW||250 mW||350 mA||3.5 V||23 nm||>10,000 h|
|M505L3||Cyan||505 nm||400 mW||440 mW||1000 mA||3.3 V||30 nm||100,000 h|
|M530L3||Green||530 nm||350 mW||370 mW||1000 mA||3.2 V||33 nm||100,000 h|
|M565L2||Green Yellow||565 nm||100 mW||150 mW||500 mA||3.2 V||80 nm||>10,000 h|
|M590L3||Amber||590 nm||160 mW||170 mW||1000 mA||2.2 V||18 nm||100,000 h|
|M617L3||Orange||617 nm||600 mW||650 mW||1000 mA||2.2 V||18 nm||100,000 h|
|M625L3||Red||625 nm||700 mW||770 mW||1000 mA||2.2 V||18 nm||100,000 h|
|M660L3||Deep Red||660 nm||640 mW||700 mW||1200 mA||2.5 V||25 nm||>65,000 h|
|M735L3||Far Red||735 nm||260 mW||310 mW||1200 mA||2.4 V||35 nm||>65,000 h|
|M780L3||IR||780 nm||200 mW||300 mW||800 mA||2.0 V||28 nm||>10,000 h|
|M850L3||IR||850 nm||900 mW||1100 mW||1000 mA||2.9 V||30 nm||100,000 h|
|M880L3||IR||880 nm||300 mW||350 mW||1000 mA||1.7 V||50 nm||>10,000 h|
|M940L3||IR||940 nm||800 mW||1000 mW||1000 mA||2.75 V||37 nm||100,000 h|
|M970L3||IR||970 nm||35 mW||50 mW||600 mA||1.4 V||50 nm||>10,000 h|
|M1050L2||IR||1050 nm||50 mW||70 mW||700 mA||1.5 V||60 nm||>10,000 h|
|MBB1L3c||Broadband||470 - 850 nmd||70 mW||80 mW||500 mA||3.6 V||280 nm||10,000 h|
|MWWHL3e||Warm White||3000 Kf||500 mW||550 mW||1000 mA||3.1 V||N/A||>50,000 h|
|MCWHL5e||Cold White||6500 Kf||800 mW||840 mW||1000 mA||3.2 V||N/A||100,000 h|
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 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.
|Click Photos to Enlarge|
|Max LED Driver Current Output||1.2 A||2.0 A||1.0 A per Channel||1.0 A per Channel|
|Max Modulation Frequency Using External Input||5 kHz||100 kHzc||100 kHzc|
(Simultaneous Across all Channels)
(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 Channelsb||4 Channelsb|
|EEPROM Compatible: Reads Out LED Data for LED Settings||-||✔||✔||✔|
Collimating the LED
Thorlabs' mounted high-power LEDs can be easily collimated with Ø1" components using the items listed in the table below. Some of the applications of the collimated LEDs include custom imaging systems, microscope illuminators, or projectors. Please be careful to follow proper optics handling procedures (Optic Handling Tutorial) during the following steps.
- Adjustable length lens tube assembly:
- Description: The adjustable length lens tube (SM1V05) allows one to accurately control the exact 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 homogenity of the beam, the AR-coated aspheric condenser lens with diffuser (ACL2520-DG6-A or ACL2520-DG6-B) is a good option.
- Setup: 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. To begin, 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. Then, carefully place the lens inside the adjustable length lens tube with the curved side facing away from the male-threaded end of the tube. Finally, secure the lens in place with another retaining ring (SM1RR) using the spanner wrench.
- Thread the male end of the SM1L03 lens tube into the female end of the LED and gently tighten it.
- Partially thread the male end of the SM1V05 adjustable length lens tube assembly into the female end of the SM1L03-LED assembly.
- Obtaining a well-collimated beam:
- Description: 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.
- Setup: 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; then tighten or loosen the adjustable length lens assembly 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.
- If you see an image of the LED, this means that the lens is not close enough to the LED. Tighten the SM1V05 until the image blurs and becomes homogenous – this is the point of collimation. If the lens needs to be closer to the LED, 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.
- Once the proper collimation position of the lens has been found, loosen the SM1V05 assembly 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.
|Optimum Lens to Emitter Distanceb||Half Viewing Anglec|
|+1 mm Out of Focusd||at 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°|
|M735L3||Far Red||735 nm||13.6 mm||2.76°||1.65°||2.99°|
|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 divergence data was calculated using Zemax.
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' flexible 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
|#||Item #||Product Description||2 LEDs||3 LEDs|
|1|| ||Microscope Illumination Port Adapter:||1||1|
|SM1A14||Olympus IX or BX Microscope|
|SM1A21||Leica DMI Microscope|
|SM1A23a||Zeiss Axioskop Microscope|
|SM1A26||Nikon Eclipse Ti Microscope|
|2||-||Mounted High-Power LEDb||2||3|
|-||LEDD1Bc||T-Cube LED Driver, 1200 mA Max Drive Current||2||3|
|-||TPS001c||15 V Power Supply Unit for a Single T-Cube||2||3|
|3||C4W||4-Way Mounting 30 mm Cage Cube||1||2|
|4||B4C||Kinematic Cage Cube Platform for C4W/C6W||1||2|
|5||FFM1||30 mm Cage-Compatible Dichroic Filter Mount||1||2|
|7||SM1CP2||Externally SM1-Threaded End Cap||1||2|
|8||SM1T2||SM1 (1.035"-40) Coupler, External Threads, 0.5" Long||3||5|
|9||SM1V05||Ø1" SM1 Lens Tube, 1/2" Long External Threads||2||3|
|-|| ||Aspheric Condenser Lens||2||3|
|ACL2520-Ac,e||AR-Coated 350 - 700 nm|
|ACL2520-Bc,e||AR-Coated 650 - 1050 nm|
|10||SM1L03||SM1 Lens Tube, 0.3" Thread Depth||2||4|
|-||B1Cc||Blank Cover Plate with Rubber O-Ring for C4W/C6W||1||2|
Click to Enlarge
Two-LED source. This is the same as Example 1, but with the blue LED removed.
|Item #||Information File||Available Ray Files|
|M365L2||M365L2_Info.pdf||100,000 Rays and 1 Million Rays|
|M385L2||M385L2_Info.pdf||1 Million Rays and 5 Million Rays|
|M405L3||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|
|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|
Ray data 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 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 rayfiles 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.