Method and apparatus for interferometric modulation of light
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
Sep 19, 2000
filing date -
Sep 19, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An interferometric light modulator includes a base and a ribbon suspended above the base. The ribbon has a central region and first and second conducting regions located outside of the central region. The ribbon includes a first mirror between the first and second conducting regions. The base includes a second mirror located parallel and adjacent to the first mirror so that the first and second mirrors form an interferometric cavity. An electrical bias applied to the first and second conducting regions adjusts the interferometric cavity in order to modulate light which is incident upon the central region of the ribbon. In an alternative interferometric light modulator, the light is incident upon a second central region of the base.
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