Hybrid light modulator
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United States of America Patent
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Jun 3, 2008
Grant Date -
Apr 13, 2006
app pub date -
Jun 13, 2005
filing date -
Sep 28, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a hybrid light modulator. The hybrid light modulator of the present invention includes an element having a protrusion to diffract incident light even at an early light receiving stage and to control the diffractive angle of the light using a microactuator, unlike conventional diffractive light modulators which reflect and diffract incident light using a plurality of micromirror actuators. Therefore, the present invention realizes device miniaturization and assures easy digital operation. Furthermore, piezoelectric force may be used to provide an actuating force to the element of the hybrid light modulator. Alternatively, electrostatic or electromagnetic force may be used as an actuating force for the hybrid light modulator.
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