LIQUID CRYSTAL BASED OPTICAL DEFLECTOR AND OPTICAL SCANNER USING THE SAME
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United States of America
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Apr 22, 2021
app pub date -
Mar 10, 2020
filing date -
Mar 10, 2020
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Abstract
A liquid crystal based optical deflector includes a light source array configured to generate a laser beam, an optical deflector including a plurality of liquid crystal cells, which transmit the laser beam, the optical deflector configured to deflect a transmission path of the laser beam depending on a gradually increased voltage profile applied to the plurality of liquid crystal cells, an optics assembly configured to scan the laser beam deflected by the optical defector in a horizontal direction, and a controller configured to adjust the voltage profile applied to the plurality of liquid crystal cells.
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