Beam steering device
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United States of America Patent
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-
Aug 26, 2008
Grant Date -
Sep 21, 2006
app pub date -
May 22, 2006
filing date -
Mar 28, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A beam steering device uses a liquid crystal with an array of back electrodes. Voltages are applied to the array to cause a desired phase distribution across the array, the distribution being selected to steer a beam incident upon the array into a desired direction. Reflective elements are disposed to reflect light incident in the spaces between the electrodes to reduce losses and to smooth the transitions in phase between adjacent electrodes.
First Claim
Family
International Classification(s)
Cited Art Landscape
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