Light guide with extraction structures
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United States of America Patent
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Apr 30, 2002
Issued Date -
N/A
app pub date -
Sep 26, 2000
filing date -
Feb 16, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light distribution device having a light-redirecting surface with a plurality of light extraction structures having a riser segment, plateau segment, and facet segment, with adjacent light extraction structures being separated by lands. The light extraction structures improve extraction efficiency, thereby facilitating use of available light from a light source.
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