Holographic imaging systems with DC balance
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United States of America Patent
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Dec 27, 2011
Grant Date -
Nov 13, 2008
app pub date -
Feb 5, 2008
filing date -
Feb 5, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A holographic imaging system includes an electrical addressable spatial light modulator (EASLM) and an optically addressable spatial light modulator (OASLM). A read light is configured to illuminate the OASLM, and a controller is configured to address the EASLM with both positive and negative sub-images and transmit the positive and negative sub-images to the OASLM. The controller is further configured to address the OASLM with an operating voltage, wherein the read light generates a holographic image comprised of diffraction patterns from the positive and negative sub-images.
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