Method of manufacturing a light valve
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United States of America Patent
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May 12, 1987
Grant Date -
N/A
app pub date -
May 14, 1985
filing date -
Sep 22, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Light valve for use in the projection of an image in which a liquid crystal is addressed by an electron beam produced in a column (10). The vacuum interface of the light valve (12) consists of an electrically inhomogenous structure (54) of fine conductors arranged within an insulating matrix. The invention is concerned with the method of manufacturing the light valve vacuum interface to permit high resolution to be obtained, the method comprising filling holes in a glass capillary array, as currently used for filtration of liquids with a molten metal or alloy, and allowing the liquid to cool. The filling is effected by placing the glass capillary array in an evacuated chamber and forcing the molten alloy into the holes in the array under pressure.
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