IMAGE SENSOR AND OPTICAL INTERACTION DEVICE USING THE SAME THEREOF
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United States of America Patent
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Issued Date -
Sep 12, 2013
app pub date -
Mar 6, 2013
filing date -
Mar 8, 2012
priority date (Note) -
Abandoned
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Abstract
An image sensor for detecting a first and a second image light in different directions is disclosed. The image sensing device comprises a polarization beam splitter, a liquid crystal switch, a polarizer, a lens module and an image sensing device. The polarization beam splitter receives and splits the first and the second image light respectively into a first penetrative light, a first reflective light, a second penetrative light and a second reflective light. The liquid crystal switch controls the phase delay of the first and the second reflective light. The polarizer is disposed on the light emitting side of the liquid switch to control the passage of the first or the second reflective light. The lens module focuses the first or the second reflective light at a focal point. The image sensing device is disposed at the focal point to sense the focused first or second reflective light.
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