The High-contrast optical shutters from Meadowlark Optics is a vibration-free alternative to mechanical shutters. This advanced liquid crystal shutter is particularly suitable for applications with polarized light. With its nematic liquid crystal configuration The shutter switches between two states: a state that rotates the input polarization by 90° when no voltage is applied, and a state that leaves the polarization unchanged when 8 to 10 volts are applied. This precise switching enables flexible polarization control without mechanical movements.
High-contrast optical shutter element with versatile wavelength options
The shutter is supplied with dichroic polarizers that cover the wavelength range of 450 nm to 700 nm This technology achieves an average contrast ratio of over 1.000:1, making it ideal for applications that require the highest precision in polarization control. In addition, shutters with larger apertures and wavelength coverage up to 2.1 microns available upon request.
Lightning-fast switching times and vibration-free operation
Thanks to the submillisecond switching times, the shutter is exceptionally fast. Switching from “closed” (no light allowed through) to “open” takes only 5 milliseconds, while the change back is less than 0.4 milliseconds This speed makes the shutter particularly suitable for fast optical controls without mechanical parts generating movements or vibrations.
High-contrast optical shutter – Robust, precise and durable
The optical components consist of synthetic quartz glass with a high-quality ITO coating that ensures a surface reflection of ≤ 0.5 %. With a wavefront distortion of maximum λ/2 at 632.8 nm and a surface quality of 60-40 scratch-dig The shutter meets the highest optical precision standards.
Flexible and robust for versatile applications
The high contrast optical shutter is not only compact but also optimized for demanding conditions. It can operate at temperatures of 0 °C to 50 °C and is designed for a maximum power density of 1 W/cm² The robust construction ensures a long service life, even under intensive use.
The High-contrast optical shutters from Meadowlark Optics offers an ideal solution for optical applications that require precise polarization control, fast switching times and vibration-free operation. Whether in photonics, laser technology or optical research - this device sets new standards in liquid crystal technology.
Our variable optics stand for precision and reliability. If you have any further questions about the systems, please feel free to send us a non-binding inquiry. Further information about the products and all technical data sheets for each variant can be found here: meadowlark.com.
