Device for modulating and reflecting electromagnetic radiation employing electro-optic layer having a variable index of refraction
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United States of America Patent
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Nov 22, 1988
Grant Date -
N/A
app pub date -
Dec 2, 1986
filing date -
Dec 2, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multi-layer device for modulating and reflecting light. The device is formed of an electro-optic layer with a variable index of refraction sandwiched between two other layers having a pre-determined index of refraction. An electric field applied across the electro-optic layer controls the index of refraction of the layer and thus the reflectance and transmittance of light through the multi-layer stack. The device can therefore be used as a mirror, window, beam-splitter, shutter, light modulator, or other optical logic element.
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