Light pipe with molded optical surfaces
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United States of America Patent
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Mar 27, 2007
Grant Date -
Oct 6, 2005
app pub date -
Mar 31, 2004
filing date -
Mar 31, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacturing a light-conductive pipe is described comprising the steps of: forming a light pipe mold having an elongated cavity with two optical end faces and an opening for injecting molten material into the cavity distant from either optical end face; providing molten material from a supply of molten material; injecting the molten material through the opening; and cooling and solidifying the molten material to form a light-conductive pipe having an input optical face and an output optical face connected by an elongated body of light-conductive material. Also described are injection molded light-pipes formed by the method, and integrated linear arrays of injection molded light-conductive pipes formed by the method. Optical faceplates may be formed comprising multiple stacked integrated linear arrays of injection molded light-conductive pipes formed by the method, and tiled flat-panel display systems may comprise a plurality of modules aligned in an array, each module comprising a flat-panel display having a plurality of pixels and such an optical faceplate.
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