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Meadowlark Optics

Liquid Crystal Variable Attenuator

Meadowlark Optics’ Liquid Crystal Variable Attenuator (LCVA) provides real-time control of light intensity. It consists of an LC Variable Retarder with an attached compensator placed between crossed linear polarizers. When properly adjusted, it allows maximum light transmission by rotating the incoming polarization direction by 90°. Extinction ratio can exceed 1000:1 for a single wavelength by optimizing voltage levels. We guarantee a minimum extinction ratio of 500:1 at your specified wavelength. Key features include a high contrast ratio, computer control capabilities, and continuous control of light intensity. Contact a Meadowlark Optics Solutions Engineer for assistance with your unique needs.

Liquid Crystal Variable Attenuator

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