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| Code | 671648 | Type | Liquid Crystal Optical Shutter | |
| Housing Dimensions | Ø25.7 × 9mm, compatible with Ø1-inch optical mounts | Incident Angle | ±3° | |
| Optical Material | Nematic Liquid Crystal / ITO Glass / Linear Polarizing Film | Transmitted Wavefront Distortion | < λ/4 @ 633nm | |
| Operating Wavelength | 400–700nm | Average Transmittance | > 60% | |
| Clear Aperture | Ø10mm | Average Contrast Ratio | > 5000:1 | |
| Surface Quality (Scratch/Dig) | 60/40 | Response Time | < 5ms | |
| AR Coating | Ravg < 0.5% @ 400–700nm |
The LBTEK Liquid Crystal Optical Shutter operates over the 400–700 nm wavelength range and is designed for high-speed, high-contrast optical beam modulation. It is constructed from two orthogonally oriented linear polarizers (400–700 nm) and a twisted nematic (TN) liquid crystal cell, enabling optical switching between 0 V and 15 V with a response time of < 5 ms.
Operating Wavelength Range: 400–700 nm
Clear Aperture: Ø10 mm
Average Transmittance: > 60%
Average Contrast Ratio: > 5000:1
Switching Voltage: 0 V / 15 V
Response Time: < 5 ms
Housing Compatibility: Ø1-inch optical mount
Design Features:
Integrated wiring for easy electrical connection
Both surfaces are marked with polarization directions for maximum transmission efficiency
This compact optical shutter provides precise, fast beam control across the visible spectrum, making it ideal for optical experiments, imaging systems, and laser modulation applications.
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