Optoelectronic active circuit element
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United States of America Patent
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-
Aug 17, 1993
Issued Date -
N/A
app pub date -
Sep 4, 1990
filing date -
Mar 3, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optoelectronic active circuit element is created by the combination of a light source, an optical control filter and a photocell intimately coupled together. The light source has at least one light emitting surface emitting light energy of a specified frequency bandwidth and the photocell has at least one light absorbing surface for receiving the emitted light energy. The optical control filter includes a photorefractive material responsive to an input signal. The optical control filter may also include a polarization filter. The optoelectronic active circuit element modulates the amplitude, frequency or both of the emitted light energy in response to the input signal to produce a characteristic function of the output of the device that is similar to that of a traditional active circuit element, as well as many variations on that function.
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