Linear electrostatic modulator
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United States of America Patent
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-
Aug 26, 1997
Issued Date -
N/A
app pub date -
Sep 1, 1995
filing date -
Oct 1, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plurality of reflective conductors (28) are affixed to an insulating substrate (12). Each reflective conductor (28) overlaps and is separated from a first electrode (18) affixed to the substrate (12) thereby forming a plurality of capacitive pixel elements (32). Each capacitive pixel element (32) is electrically connected to a respective thin film transistor (40) to assist in controlling the potential difference applied to the pixel element (32). Varying each potential difference varies separation between the reflective conductor (28) and first electrode (18) thereby phase modulating a wavefront incident thereon. Thin film transistors (40) are formed on the substrate (12).
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