Beam Shutter
- Default Position: Closed
- Close Activation Time: <1.5 ms
- Compatible with SM05 Lens Tubes
- Laser Safety Applications
- Passive Closure Mechanism
- Includes 6-Foot-Long Cable for Connection to Controller (10' Long Cable Available Below)
The SH05 Beam Shutter utilizes a rotary, electro-mechanical actuator to provide millisecond shutter operation. During operation, the shutter remains in a closed position and then opens when a pulse control signal is applied. As long as the control voltage to the shutter remains high, the shutter stays open, but as soon as the voltage goes low, the shutter closes, providing inherent "fail-safe" operation. The rate at which the device is opened can be controlled. An optical sensor, which detects the shutter blade position in the housing, provides information that confirms the state of the shutter position. This makes it ideal in applications where a laser safety lockout is required. In order to ensure long lifetime of your shutter, the aperture should not be located near the focus of a laser beam. Please note that the solenoid's performance is not guaranteed if the case temperature exceeds 50 °C. Significant heat buildup will occur if the aperture is closed for a long time while a high-power laser is incident on the shutter. Both sides of the aperture of the SH05 are internally SM05 (0.535"-40) threaded to easily interface with all of our SM05 lens tubes. For post mounting, the SH05 has three M6 x 0.5 tapped holes. To enable compatibility with our imperial and metric Ø1/2" posts, three adapters are provided to convert the internal M6 threading to internal 8-32 and three more allow for conversion to internal M4. Thorlabs offers two compatible controllers for use with the SH05: the SC10 Shutter Controller and the TSC001 T-Cube Flipper/Shutter Controller. Both include an "interlock mode" that is incorporated into the controller's logic as described in the controller presentations below. A 6-foot-long cable with 6-way HRS connector is included for connecting the shutter to either the SC10 or TSC001 Shutter Controller presented below. The SH05 can also be used with a third-party controller.
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| Beam Shutter Specifications when Not Using SC10 Controller |
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| Solenoid Coil Resistance | 28 Ω | | Max Solenoid Power (20°C): | | Steady State | 4 W @ Continuous | | 50% Duty Cycle | 8 W @ 100 s | | 25% Duty Cycle | 16 W @ 36 s | | 5% Duty Cycle | 80 W @ 2.5 s | | Maximum Applied Solenoid Voltage* | <12 VDC (Holding)
<50 VDC (Pulse) |
*To protect the unit from heat, Thorlabs recommends applying an actuation pulse followed by a holding voltage. To keep the unit on for a long period of time, the holding voltage must be ≤12 V. Applying an actuation voltage that is too low may open the shutter; however other timing specs cannot be guaranteed. | SH05 Beam Shutter Specifications |
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| Shutter Activation Time Open | <1 ms (Nominal 20 V Pulse) | | Shutter Activation Time Close | <1.5 ms (Spring Activated) | | Actuation Pulse | 8 V to 50 V (Time Dependent) | | Holding Voltage | 8 V to 12 V | | Aperture | Ø0.5" (12.7 mm) | | Initial State | Closed | | Maximum Pulse Rate | 10 Hz Steady, 25 Hz Burst | | Duty Cycle | Optimum @ 10 Hz = 40% | | Lifetime | 1,000,000 Cycles (Typical) |
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Interface ConnectorHR10-7R-6S
| Pin | Description |
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| 1 | Monitor Opto Anode | | 2 | Solenoid | | 3 | Solenoid | | 4 | Monitor Opto Cathode | | 5 | Monitor Opto Emitter | | 6 | Monitor Opto Collector |
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Laser Safety and ClassificationSafe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina. Safe Practices and Light Safety Accessories- Thorlabs recommends the use of safety eyewear whenever working with laser beams with non-negligible powers (i.e., > Class 1) since metallic tools such as screwdrivers can accidentally redirect a beam.
- Laser goggles designed for specific wavelengths should be clearly available near laser setups to protect the wearer from unintentional laser reflections.
- Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range
- Laser Barriers and Blackout Materials can prevent direct or reflected light from leaving the experimental setup area.
- Thorlabs' Enclosure Systems can be used to contain optical setups to isolate or minimize laser hazards.
- All beams should be terminated at the edge of the table, and laboratory doors should be closed whenever a laser is in use.
- Do not place laser beams at eye level.
- Carry out experiments on an optical table such that all laser beams travel horizontally.
- Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working near the beam path.
- Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface.
- Operate a laser at the minimum power necessary for any operation.
- If possible, reduce the output power of a laser during alignment procedures.
- Use beam shutters and filters to reduce the beam power.
- Post appropriate warning signs or labels near laser setups or rooms.
- Use laser sign lightboxes if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
- Do not use Laser Viewing Cards in place of a proper Laser Barrier or Beam Trap.
Laser ClassificationLasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below: | Class | Description | Warning Label |
|---|
| 1 | This class of laser is safe under all conditions of normal use, including use with optical instruments for intrabeam viewing. Lasers in this class do not emit radiation at levels that may cause injury during normal operation, and therefore the maximum permissible exposure (MPE) cannot be exceeded. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is not possible without opening or shutting down the laser. |  | | 1M | Class 1M lasers are safe except when used in conjunction with optical components such as telescopes and microscopes. Lasers belonging to this class emit large-diameter or divergent beams, and the MPE cannot normally be exceeded unless focusing or imaging optics are used to narrow the beam. However, if the beam is refocused, the hazard may be increased and the class may be changed accordingly. |  | | 2 | Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the exposure in the eye to 0.25 seconds. This category only applies to visible radiation (400 - 700 nm). |  | | 2M | Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. This laser class also applies to larger-diameter or diverging laser beams. |  | | 3R | Lasers in this class are considered safe as long as they are handled with restricted beam viewing. The MPE can be exceeded with this class of laser, however, this presents a low risk level to injury. Visible, continuous-wave lasers are limited to 5 mW of output power in this class. |  | | 3B | Class 3B lasers are hazardous to the eye if exposed directly. However, diffuse reflections are not harmful. Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. In addition, laser safety signs lightboxes should be used with lasers that require a safety interlock so that the laser cannot be used without the safety light turning on. Class-3B lasers must be equipped with a key switch and a safety interlock. |  | | 4 | This class of laser may cause damage to the skin, and also to the eye, even from the viewing of diffuse reflections. These hazards may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. Great care must be taken when handling these lasers. They also represent a fire risk, because they may ignite combustible material. Class 4 lasers must be equipped with a key switch and a safety interlock. |  | | All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign |  |
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 Click to EnlargeThe SH1 is compatible with SM1 Lens Tubes and 30 mm Cage Systems. - Default Position: Closed
- Close Activation Time: <10 ms
- Compatible with 30 mm Cage System and SM1 Lens Tubes
- Ideal for Laser Safety Applications
- Includes 6-Foot-Long Cable for Connection to Controller (10' Long Cable Available Below)
The SH1 Beam Shutter utilizes a rotary, electro-mechanical actuator to provide millisecond shutter operation. During operation, the shutter remains in a closed position and then opens when a pulse control signal is applied. As long as the control voltage to the shutter remains high, the shutter stays open, but as soon as the voltage goes low, the shutter closes, providing inherent "fail-safe" operation. The rate at which the shutter opens can be controlled. An optical sensor, which detects the shutter blade position in the housing, provides information that confirms the state of the shutter position. This makes it ideal in applications where a laser safety lockout is required. In order to ensure long lifetime of your shutter, the aperture should not be located near the focus of a laser beam. Please note that the solenoid's performance is not guaranteed if the case temperature exceeds 50 °C. Significant heat buildup will occur if the aperture is closed for a long time while a high-power laser is incident on the shutter. Both sides of the aperture of the SH1 are internally SM1 (1.035"-40) threaded to easily interface with all of our SM1 lens tubes. In addition, the aperture is surrounded by four, 4-40 holes on both sides for compatibility with our 30 mm cage system. For Ø1/2" post mounting, the SH1 has four 8-32 tapped holes. The SH1/M features M4 tapped holes for compatibility with metric Ø1/2" posts. Thorlabs offers two compatible controllers for the SH1; both include an "interlock mode" that is incorporated into the controller's logic; for details, please see the controller presentations below. A 6-foot-long cable with 6-way HRS connector is included for connecting the shutter to either the SC10 or TSC001 Shutter Controller presented below. The SH1 can also be used with a third-party controller. For information on the control requirements, please see the Specs tab. This shutter features a single blade that slides across the aperture. Additionally, Thorlabs offers a Ø1" diaphragm shutter and controller, which has five stainless steel blades that open from the center.
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| Beam Shutter Specifications when Not Using SC10 Controller |
|---|
| Solenoid Coil Resistance | 31.84 Ω | | Max Solenoid Power (20°C): | | Steady State | 9 W @ Continuous | | 50% Duty Cycle | 18 W @ 100 s | | 25% Duty Cycle | 36 W @ 36 s | | 5% Duty Cycle | 180 W @ 2.8 s | | Maximum Applied Solenoid Voltage* | 15 VDC (Holding)
75 VDC (Pulse) |
*To protect the unit from heat, Thorlabs recommends applying an actuation pulse followed by a holding voltage. To keep the unit on for a long period of time, the holding voltage must be ≤15 V. Applying an actuation voltage that is too low may open the shutter; however other timing specs cannot be guaranteed. | SH1 Beam Shutter Specifications |
|---|
| Shutter Activation Time Open | <10 ms (Nominal 20 V Pulse) | | Shutter Activation Time Close | <10 ms (Spring Activated) | | Actuation Pulse | 10 V to 75 V (Time Dependent) | | Holding Voltage | 8 V to 15 V | | Aperture | Ø1.0" (25.4 mm) | | Initial State | Closed | | Maximum Pulse Rate | 12.5 Hz Steady, 16.6 Hz Burst | | Duty Cycle | Optimum @ 8 Hz = 50% | | Lifetime | 1,000,000 Cycles (Typical) |
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Interface ConnectorHR10-7R-6S
| Pin | Description |
|---|
| 1 | Monitor Opto Anode | | 2 | Solenoid | | 3 | Solenoid | | 4 | Monitor Opto Cathode | | 5 | Monitor Opto Emitter | | 6 | Monitor Opto Collector |
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Laser Safety and ClassificationSafe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina. Safe Practices and Light Safety Accessories- Thorlabs recommends the use of safety eyewear whenever working with laser beams with non-negligible powers (i.e., > Class 1) since metallic tools such as screwdrivers can accidentally redirect a beam.
- Laser goggles designed for specific wavelengths should be clearly available near laser setups to protect the wearer from unintentional laser reflections.
- Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range
- Laser Barriers and Blackout Materials can prevent direct or reflected light from leaving the experimental setup area.
- Thorlabs' Enclosure Systems can be used to contain optical setups to isolate or minimize laser hazards.
- All beams should be terminated at the edge of the table, and laboratory doors should be closed whenever a laser is in use.
- Do not place laser beams at eye level.
- Carry out experiments on an optical table such that all laser beams travel horizontally.
- Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working near the beam path.
- Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface.
- Operate a laser at the minimum power necessary for any operation.
- If possible, reduce the output power of a laser during alignment procedures.
- Use beam shutters and filters to reduce the beam power.
- Post appropriate warning signs or labels near laser setups or rooms.
- Use laser sign lightboxes if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
- Do not use Laser Viewing Cards in place of a proper Laser Barrier or Beam Trap.
Laser ClassificationLasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below: | Class | Description | Warning Label |
|---|
| 1 | This class of laser is safe under all conditions of normal use, including use with optical instruments for intrabeam viewing. Lasers in this class do not emit radiation at levels that may cause injury during normal operation, and therefore the maximum permissible exposure (MPE) cannot be exceeded. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is not possible without opening or shutting down the laser. | | | 1M | Class 1M lasers are safe except when used in conjunction with optical components such as telescopes and microscopes. Lasers belonging to this class emit large-diameter or divergent beams, and the MPE cannot normally be exceeded unless focusing or imaging optics are used to narrow the beam. However, if the beam is refocused, the hazard may be increased and the class may be changed accordingly. | | | 2 | Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the exposure in the eye to 0.25 seconds. This category only applies to visible radiation (400 - 700 nm). | | | 2M | Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. This laser class also applies to larger-diameter or diverging laser beams. | | | 3R | Lasers in this class are considered safe as long as they are handled with restricted beam viewing. The MPE can be exceeded with this class of laser, however, this presents a low risk level to injury. Visible, continuous-wave lasers are limited to 5 mW of output power in this class. | | | 3B | Class 3B lasers are hazardous to the eye if exposed directly. However, diffuse reflections are not harmful. Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. In addition, laser safety signs lightboxes should be used with lasers that require a safety interlock so that the laser cannot be used without the safety light turning on. Class-3B lasers must be equipped with a key switch and a safety interlock. | | | 4 | This class of laser may cause damage to the skin, and also to the eye, even from the viewing of diffuse reflections. These hazards may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. Great care must be taken when handling these lasers. They also represent a fire risk, because they may ignite combustible material. Class 4 lasers must be equipped with a key switch and a safety interlock. | | | All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign | |
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- Local Operation or Remote Control via LabVIEW, LabWindows or BNC
- Programmable with Repeating Open/Close Sequences at Millisecond Intervals
- LCD Front Panel with Dedicated Shutter Status Indicators
- Safety Alarm When Coupled with SH05 and SH1 Beam Shutter
- Keyswitch Provides Additional Safety
Thorlabs' SC10 Shutter Controller provides an easy-to-use control interface for our SH05 and SH1 Beam Shutters. The shutter can be controlled by hand using the buttons on the front of the unit, and the back includes a BNC input for external triggering, a BNC output for synchronization with other equipment, and an RS-232 port for remote computer control. Dedicated lights on the front panel reveal if the shutter is enabled and if the shutter is open. It also features a keyswitch that enables opening of the shutter, helping to comply with lab laser safety requirements. In addition, it incorporates a safety interlock that overrides all system commands and closes the shutter. If the interlock is tripped, the keyswitch must be cycled to resume operations. The easy-to-read LCD front panel provides access to the same commands as the included LabVIEW and LabWindows software packages. In addition to simply opening or closing the shutter, a repeating sequence of open and close events with on and off times as short as 1 ms can be set up and initiated either by a front panel button, a TTL pulse (+5 V), or a computer command via RS-232. Alternatively, the shutter can be synchronized to follow the rising and falling edges of an external voltage supplied over BNC. The shutter controller includes LabVIEW VI's suitable for integrating into existing LabVIEW applications. A standalone executable written in LabWindows/CVI is also provided, allowing remote computer control of the SC10 without any additional programming. See the Software tab to download these packages. The shutter controller's BNC output allows it to double as a standalone digital delay generator with 1 ms resolution and 0.1 ms accuracy. In October 2012, the firmware of the SC10 was updated to address compatibility issues with our SH1 Shutter. For units purchased prior to that date, a free firmware update is available; please see the Software tab for details.
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| SC10 Controller Specifications |
|---|
| Maximum Exposure Rate | 25 Hz | | Minimum Exposure Time | 10 ms | | Accuracy | 0.2 ms | | On/Off Times | 1 ms to 999.999 s | | Maximum Steady State Power | 5 W | | Hold Voltage Range | 9 V to 11.8 V | | Vout | 24 V Pulse (10 V Hold) | | Typical Transfer Time | 1 ms | | Power Compatibility | 100 - 250 VAC;
U.S. Power Cord Included |
Shutter Rise & Fall Times Opening time = 0.4 ms  Closing time = 0.6 ms |
Interface ConnectorHR10-7R-6S
| Pin | Description |
|---|
| 1 | To Opto Anode (12 V limited to 20mA) | | 2 | To Shutter Coil - 24 V Pulse - 10 V Steady State (0.4 A max) | | 3 | To Shutter Coil - GND (on) - Open Ckt (off) | | 4 | To Opto Cathode - GND | | 5 | To Opto Emitter - GND | | 6 | To Opto Collector (2.5V) |
Computer ConnectionD-type Female
| Pin | Description |
|---|
| 1 | NC | | 2 | TxD (from SC10) | | 3 | RxD (to SC10) | | 4 | NC | | 5 | Signal Ground | | 6 | NC | | 7 | NC | | 8 | NC | | 9 | NC |
Trigger In*BNC Female
*10K Input Impedance, 2.2 V Min, 5 V Max Trigger Out**BNC Female
**2.2 V Min (500 Ohm Load), 5 V Max (Open Circuit) |
Software for the SC10 Shutter ControllerSoftwareVersion 1.0 Standard full software application packages and graphical user interfaces. ORFirmware Update Version 1.04 (March 29, 2013) The firmware of the SC10 has been updated to address compatibility issues with our SH1 Shutter. For units purchased prior to October 2012, a firmware update is available to ensure compatibility with both SH1 and SH05 shutters. The latest update also addresses bugs present in the former version. The SC10 features a serial port for connection to a PC. In order to install the firmware update, a computer with a serial port is required. Alternately, a USB to serial adapter can be used. |
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- Local Operation or Remote Control via USB or SMA
- Programmable with Repeating Open/Close Sequences
- Dedicated Shutter Status Light
- Keyswitch Provides Additional Safety
Thorlabs' TSC001 T-Cube Shutter Controller is a compact [2.37" x 2.37" x 1.87" (60.3 mm x 60.3 mm x 47.5 mm)] controller that is designed for use with our SH05 and SH1 Beam Shutters. A button on top of the unit allows the shutter to be controlled by hand, and an indicator light shows if the shutter is open or closed. The sides include an SMA input for external triggering, an SMA output for synchronization with other T-Cubes and equipment, and a mini-USB connector for remote computer control. The shutter controller features a keyswitch that enables opening of the shutter, helping to comply with laser lab safety requirements. In addition, it incorporates an interlock circuit for integration with external laser safety systems. The SMA input on the unit, which accepts TTL pulses (+5 V), can be used to toggle the shutter. In addition, a standalone Windows executable is included, providing manual control and allowing a repeating sequence of open and close events with on and off times as short as 100 ms to be set up and initiated without additional programming. ActiveX libraries for home-built software solutions are also available. The base of the shutter controller contains an 8-32 (M4) clearance slot that permits direct mounting to an optical table or breadboard. For more information on the controller and the included software, please visit our TSC001 page.
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| Compatible Power Supplies |
|---|
| Operation Mode | Power Supply | Standalone or
Single Channel | TPS001 (For One Cube)
TPS008 (Up to Eight Cubes) | System or
Multi-Channel | TCH002 USB Controller Hub |
| Specifications |
|---|
| General | | Timing Resolution | 250 µs | | On/Off Times | 100 ms to 10 s | | Maximum Repetition Rate | Up to 10 Hz | | Trigger In/Out (SMA) | TTL | | Output Enable | Key Switch and Interlock Jack Plug | | Operating Modes | | Manual | User Controlled On/Off | | Single | DSP Controlled Single On/Off Cycle | | Auto | DSP Controlled Multiple On/Off Cycles | | Triggered | Externally Triggered On/Off | | Output (6 Way Hirose) | | Solenoid Drive | 15 V Pulse (10 V Hold) | | Position Sensor Feedback | Photodiode | | Input Power Requirements | | Voltage | 15 V Regulated DC | | Current | 1 A Peak, 300 mA Steady State | | General | | Housing Dimensions (L x W x H) | 60.3 mm x 60.3 mm x 47.5 mm
(2.37" x 2.37" x 1.87") | | Weight | 160 g (5.5 oz) |
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Solenoid ConnectorHirose
| Pin | Description |
|---|
| 1 | Opto Anode (12 V, Limited to 20 mA) | | 2 | Shutter Coil: 15 V Pulse, 10 V Steady State (0.4 A Max) | | 3 | Shutter Coil: Ground (When On), Open CCT (When Off) | | 4 | Opto Cathode Ground | | 5 | Opto Emitter Ground | | 6 | Opto Collector (2.5 V) |
USB Mini-B*
*Type A to Mini-B Adapter Included |
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- 6-Pin, Male-to-Male Hirose Connector Cable
- Compatible with Several Thorlabs Products
- TC200 Temperature Controller
- SC10 Shutter Controller
- SH05 Beam Shutter, Ø1/2" Aperture
- SH1 Beam Shutter, Ø1" Aperture
- Cut Cable to Expose Wires for Custom Applications
The TC200CAB10 is a 10-foot-long, 6-pin, male-to-male Hirose connector cable that is compatible with our TC200 temperature controller, SH05 and SH1 beam shutters, and SC10 shutter controller. The wires in this cable cross as seen in the drawing to the right. This is not a straight-through cable. This Hirose connector cable can also be cut to any length leaving one connectorized end and one bare end. The colored wire diagram to the right shows the relationship between the six colored wires and the pins in the connector, allowing the cut cable to be incorporated into a variety of custom applications.
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| Electrical Specifications |
|---|
| Conductor | | Number of Conductors | 6 | | Conductor Gauge | 26 AWG | | Capacitance | 85.306 pF/m | | Propagation Velocity | 60%a | | Conductor Resistance | 122.381 Ω/km | | Operating Voltage (Max) | 300 VRMS | | Current per Conductor (Max) | 1.2 A | | Operating Temperature | -20 to 80 °C | | Connector | | Contact Resistance (1 A, DC) | 10 mΩ | | Insulation Resistance | 1000 MΩ | | Voltage (Max) | 140 VDC | | Current (Max) | 2 A | | Operating Temperature | -25 to 85 °C |
| Physical Specifications |
|---|
| Connectors | 6-Pin, Male Hirose | | Length | 10 Feet (3 m) | | Insulating Material | PVC - Polyvinyl Chloride | | Insulation Thickness | 0.381 mm | | Outer Jacket Thickness | 0.940 mm | | Bend Radius (Min) | 57.150 mm |
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Single-Blade Shutter and Controller
