Laser Shutters | Optical Shutters – NM Laser Products
Laser Shutters | Optical Shutters – NM Laser Products
Price: $695
Aperture Diameter | 8.0 mm |
Typical Beam Diameter used for Specs | 6.0 mm |
Maximum Shutter Repetition Rate | 3 Hz |
CW and Quasi-CW Optical Power Handling | 50 W Max |
Typical Damage Threshold, Aligned Polarization | 300 mJ/cm2 |
Delay to Begin Opening after Command Open | 10 ms |
Opening Time Switching Speed | 20 ms |
Delay to Begin Closing after Command Close | 10 ms |
Closing Time Switching Speed | 20 ms using CX4000B |
Minimum FWHM Exposure Capability | 30 ms using CX4000B |
Thermal Power Dissipation Holding Open | 4 W |
Thermal Power Dissipation, Repetitive Cycling | 8 W @ 3 Hz |
Nominal Magnetic Winding Impedance | 15 Ohms |
Cable/Wire Type and Length | 18 inches, 6 leads 22 g |
Mounting Surface for Thermal Sinking | Base Plate |
Position Sensors | Logic TTL, Require 5 VDC @ 20 mA |
Weight | 4 oz. |
Size (see mechanical drawing) | 3.80 x 2.06 x 0.64 Inches |
Compatible system controllers are CX4000B or user-built circuits designed around 24 VDC.
Options are available using a suffix code system. Many options cannot be installed after manufacture, so choose carefully. Choose the –IR suffix for CO2 and IR use, starting at about 700 nm. The standard over-coated aluminum mirror is good from deep UV to about 4 microns. Special mirrors are not currently available, except for OEM applications. Cable options are available, call for details.
Special Considerations for this model include damage threshold assessment. The shutter is not designed for high energy, low repetition rate Q-switched lasers. See LSTXYW8 for these applications. Thermal mounting must be given strong attention if optical power dissipation is near the upper limit of the rating. For high activity processing, consider the LST200SLP.
Restricted use for this model is only limited to damage threshold and wavelength considerations. It can be used in any orientation with regards to gravity.
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. See the Product Matrix page to compare laser shutter models.
Aperture Size Range | 8mm to 12mm (round or obround) |
Optics | Aluminum, Dielectric, Gold |
Wire Length | Any length |
Wire/Cable Type Wire Gauge | Teflon, Vinyl |
Connector | Any 6 pin connector |
Size | 3.80 x 2.06 x .64 in., note: minimal size change can be designed |
Identification | Engraving, Labels |
MODEL | LST400 |
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Classification | Safety/Process |
Number of Wire Leads, Std. | Six, 22 g |
Cable or Wires – Length | 18 inches |
Cable/Wire Termination | MTA-100, AMP, P/N 643813-60 |
Recommended Controller and Voltage Present | Capacitor Discharge 24 V, 24 V PWM,- or our controllers |
Shutter Winding Resistance | 15 Ohms Nominal |
Gravity Considerations | Symmetric Open/Close speed with base down More power needed for upside-down mounting |
Typical Minimum Hold Open Voltage, Room Temperature | Room Temperature, 5 V |
Typical Hold Open Power Dissipation as Heat | 4 W |
User Power Supply Notes | 24 V, 1 A Rating, Surge Capacitor on output |
User Drive Circuit/Cap Discharge | 24 V, C=4 700 mmF, R=50 ohm, Use Flyback diode 1N4001 |
Nominal Winding Inductance | 10 mH |
User Drive Circuit/PWM Type | 24 V for 50 ms, then drop to 7 V hold, Use 1N4001 Flyback |
Color Codes and Function of Wires | PIN 1 Red, + to winding |
PIN 2 Black, – to winding | |
PIN 3 Violet, Supply Regulated +5.0 VDC — 30 mA | |
PIN 4 Yellow, NO Output from Sensor, TTL (reads high when shutter open) | |
PIN 5 Orange, NC Output from Sensor, TTL (reads high when shutter closed) | |
PIN 6 Blue, 5V Return and Sensor Ground |