Compound Photonics Limited

Alexander Parfenov

Terry J Scheffer

Steven Howard Linn

Howard V Goetz

Jiuzhi Xue

James A Van Vechten

Lin Li

David Keith

Jonathan A Sachs

Stephen E Brice

An optically addressed, photoconductive spatial light modulator (SLM) operates in a transmissive mode and is capable of modulating a wide spectrum of visible light. There is no pixel structure or native pixel resolution in the SLM. The SLM has no photodiodes and does not rectify. A light projection system () in which one or more SLMs () are placed includes a write (image definition) UV light path () and a read (illumination) visible light path () to form a color image projection display. The write UV light propagates from an image display pattern source () and either sequentially or continuously writes image patterns on the photoconductive SLMs. The read visible light propagates through the SLM and is modulated by an electro-optical material, the optical properties of which change in response to the image structure carried by the write light. The result is a high efficiency display system that delivers high resolution color images through a projection lens () onto a display screen.

Transmissive, optically addressed, photosensitive spatial light modulators and color display systems incorporating same

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Rancho Palos Verdes, CA, United States of America

Alexander Parfenov