Laser Shutters & Optical Shutters | NM Laser Products
Laser Shutters & Optical Shutters | NM Laser Products
LST200-F40 Optical Shutter Specifications | |
Aperture Diameter | 4.0 mm |
Typical Beam Diameter used for Specs | 2 mm |
Maximum Shutter Repetition Rate | 25 Hz |
CW and Quasi-CW Optical Power Handling | 6.0 Watts |
Typical Damage Threshold, Aligned Polarization | 300 mJ/cm2 (PW=10 ns) |
Delay to Begin Opening after Command Open | 4 ms |
Opening Time / Switching Speed | 8 ms |
Delay to Begin Closing after Command Close | 4 ms |
Closing Time / Switching Speed | 8 ms |
LST200-F40 Optical Shutter Specifications | |
Minimum FWHM Exposure Capability | 20 ms |
Thermal Power Dissipation Holding Open | 4.5 W MAX |
Thermal Power Dissipation, Repetitive Cycling | 6.0 W @ 25 Hz |
Nominal Magnetic Winding Impedance | 22 Ohms |
Cable/Wire Type and Length | 18-inch harness, 26 AWG |
Mounting Surface for Thermal Sinking | Input Apt Face, Bottom Face |
Position Sensors | Phototransistor, 5V TTL logic |
Weight | 6 oz. |
Size (see mechanical drawing) | 2.10 x 1.35 x 0.39 inches |
Note: 3-D solid model available upon request (Solidworks or .stp file). Contact us. |
Our optical shutters and laser shutters are optimized for use with our CX4000B shutter driver or user-built circuits designed around 24 VDC. The user-built circuit can be a typical current driver based around 24V or 24V / PWM drive circuit, although choice of controller / user circuit can affect the shutter’s switching speeds and bounce control.
See the Mechanical Drawing tab for dimensions. Also see the Application Notes in the Technical Information menu for important operational issues including thermal mounting, user-built circuits, polarization, lifetime, jitter, vacuum operation, and contamination.
The F40’s Input Aperture face is the ideal thermal mounting surface for high heat loads. Alternatively, the bottom surface can be used for low-moderate heat loads. Restrictions for this model include proximity to high magnetic fields and strict observance of optical power rating. Large size particle contamination could inhibit blade motion causing failure to open or close.
Aperture Size Range | Not available |
Wire Length | 2 feet maximum |
Connector | Any 9-pin connector |
Identification | SN engraving, SN / PN Labels |
Note: 3-D solid model available upon request (Solidworks or .stp file). Contact us.
MODEL | LST200-F40 |
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Classification | Optical / Process Shutter |
Number of Wire Leads, Standard | 9 Wires, 26 AWG |
Cable or Wires – Length | 18 inches, 2 feet MAX |
Cable/Wire Termination | 9-pin Molex 0050579409 |
Recommended Controller and Voltage Present | CX4000B or 24V / PWM |
Shutter Winding Resistance | 22 Ohms Nominal |
Gravity Considerations | None |
Typical Minimum Hold Open Voltage, Room Temperature | 9.5 V |
Typical Hold Open Power Dissipation as Heat | 4.5 W |
User Power Supply Notes | 24 V, minimum 1 A rating |
Nominal Winding Inductance | 10 mH |
User Drive Circuit/PWM Type | Energize (open): Apply 24 V for 3.6 ms, 9.5 – 10 V hold for long-term hold
Release (close): Use 3.4 ms delay, 0.4 ms brake pulse for optimum bounce control on closure |
Color Codes and Function of Wires
CONNECTOR PIN / WIRE COLOR | FUNCTION |
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1 – RED | + Power to Winding |
2 – BLACK | – Power to Winding |
3 – GREEN | Case Ground |
4 – VIOLET | LED Anode (Open Sensor) |
5 – BROWN | LED Anode (Close Sensor) |
6 – YELLOW | LED Common Ground |
7 – WHITE | Collector (Open Sensor) |
8 – ORANGE | Collector (Close Sensor) |
9 – GRAY | Emitter Common Ground |