Uniform light extraction from light guide, independently of light guide length
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United States of America Patent
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May 4, 1999
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N/A
app pub date -
Sep 4, 1997
filing date -
Sep 4, 1997
priority date (Note) -
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Abstract
A light guide light extraction mechanism can be formed in a predetermined maximum length to yield a predetermined light emission characteristic. Any shorter length segment removed from a predetermined end of the extraction mechanism and installed in a light guide of that shorter length causes the shorter length light guide to exhibit substantially uniform surface brightness. This obviates the need for cumbersome trial and error development of a different light extraction mechanism for each such shorter light guide.
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