
Optical Power: 1 W
Aperture Size: 3 mm
Switching Speed: 10 ms
Fast Switching Speed
12 VDC Direct Drive
Price: $525
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Optical Shutter
Laser Safety Shutter
High Rep Rate DPSS
Small Package
Specifications
Aperture Diameter | 3.0 mm |
Typical Beam Diameter used for Specs | 2 mm |
Maximum Shutter Repetition Rate | 50 Hz |
CW and Quasi-CW Optical Power Handling | 1 W |
Typical Damage Threshold, Aligned Polarization | 30 mJ/cm2 (PW = 10 ns) |
Delay to Begin Opening after Command Open | 0 ms |
Opening Time / Switching Speed | 10 ms |
Delay to Begin Closing after Command Close | 0 ms |
Closing Time / Switching Speed | 10 ms |
Minimum FWHM Exposure Capability | 10 ms |
Thermal Power Dissipation Holding Open | 2.4 W MAX |
Thermal Power Dissipation, Repetitive Cycling | 1.2 W @ 50 Hz |
Nominal Magnetic Winding Impedance | 63 Ohms |
Cable/Wire Type and Length | 18-inch twisted pair, 22 AWG |
Mounting Surface for Thermal Sinking | Output APT Face, Bottom Face |
Position Sensors | Not Available |
Weight | 5 oz. |
Size (see mechanical drawing) | 2.10 x 1.35 x 0.38 inches |
Description
The high reliability LST218 optical shutter model is designed for use as a process shutter or moderate reaction safety interlock systems. Its solid copper package efficiently manages thermal flow, delivering the heat to the mounting surfaces. The LST218 has the same exterior dimensions as our popular LST200SLP model, with a larger (3 mm) aperture. The LST218 is designed to run on 12 VDC (direct drive), making the user drive circuit straightforward. This model will dissipate a maximum of 2.4 W thermal power when holding open.
Considerations for all shutters include proximity to high magnetic fields and strict observance of optical power rating. Subjecting shutter to “large” size dust particles and debris could inhibit shutter motion.
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.
Customize
Aperture Size | Not Available |
Wire Length | 2 Ft max |
Wire/Cable Type Wire Gauge | Teflon, Vinyl |
Connector | Any 2-pin |
Identification | SN engraving, SN / PN Labels |
Mechanical Drawing
Electrical Drive
Classification | Safety/Process |
Number of Wire Leads, Standard. | Two, 22 AWG |
Cable or Wires – Length | 18 inches |
Cable/Wire Termination | Flying |
Recommended Controller and Voltage Present | 12 VDC Direct drive |
Shutter Winding Resistance | 63 Ohms Nominal |
Gravity Considerations | None |
Minimum Hold Open Voltage, Room Temperature | 12 VDC Direct drive |
Typical Hold Open Power Dissipation as Heat | 2.4 W |
User Power Supply Notes | 12 V, 200 mA Rated |
User Drive Circuit/Cap Discharge | 12 V to open / hold open |
Nominal Winding Inductance | – |
User Drive Circuit/PWM Type | Direct drive |