Light pipe for an optical mouse
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United States of America Patent
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Dec 29, 1987
Grant Date -
N/A
app pub date -
Sep 6, 1985
filing date -
Sep 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light pipe for use in an optical mouse comprises a block of light transmitting fibers comprising a plurality of parallel light transmissive regular polygonal fiber cores each surrounded by light transmissive cladding having a lower index of refraction than the core. The ratio of the width of the core to the thickness of the cladding ranges from 4 to 24.
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