Laser Shutters & Optical Shutters | NM Laser Products
Laser Shutters & Optical Shutters | NM Laser Products
Price: $695
LST400 Laser Shutter Specifications | |
Aperture Diameter | 8.0 mm and 10.0 mm |
Typical Beam Diameter used for Specs | 6.0 mm |
Maximum Shutter Repetition Rate | 5 Hz |
CW and Quasi-CW Optical Power Handling | 50 W Max |
Typical Damage Threshold, Aligned Polarization | 500 mJ/cm2 at 10 ns |
Open Delay Time | 5 ms |
Open Rise Time | 15 ms |
Open Total Time | 20 ms |
Close Delay Time | 5 ms |
Close Fall Time | 15 ms using CX4000B |
Close Total Time | 20 ms |
LST400 Laser Shutter Specifications | |
Minimum FWHM Exposure Capability | 30 ms using CX4000B |
Thermal Power Dissipation Holding Open | 4 W |
Thermal Power Dissipation, Repetitive Cycling | 10 W @ 5 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 @ 30 mA |
Weight | 4 oz. |
Size (see mechanical drawing) | 3.80 x 2.06 x 0.64 Inches |
Note: 3-D solid model available upon request (Solidworks or .stp file). Contact us. Specifications updated on April 27, 2021 |
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 IR use, starting at about 700 nm. The standard over-coated aluminum mirror is good from deep UV to about 700 nm. Special dielectric mirrors are available for OEM applications. Cable options are also available, call for details.
Special considerations for this model include damage threshold assessment. The shutter is not designed for high energy, low repetition rate, Joule-level 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-speed 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; more symmetric switching in standard mounting.
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 & 10mm, Obround Available |
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 |
---|---|
Classification | Safety/Process |
Number of Wire Leads, Std. | Six, 22 g |
Cable or Wires – Length | 18 inches |
Cable/Wire Termination, Std. | MTA-100, AMP, P/N 643813-60 |
Recommended Controller and Voltage Present | Capacitor Discharge 24 V, 24 V PWM, or our CX4000B controller |
Shutter Winding Resistance | 15 Ohms Nominal |
Gravity Considerations | Symmetric Open/Close speed with base down. More power used 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 VDC, 1 A Rating, if Surge Capacitor on Output, else 2 A Rating |
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 |