Led lamp having a prismatically-cut modifier
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United States of America Patent
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-
Oct 2, 2001
Grant Date -
N/A
app pub date -
Aug 11, 1999
filing date -
Aug 12, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An LED lamp includes a first optical member and a second optical member. The first optical member is for providing light from an LED chip, provided with at least one of a concave mirror and a dome lens, at an appropriate illumination angle. The second optical member is a lens positioned to receive light from the first optical part via an air layer. At least one surface of the second optical member is a prismatically cut surface.
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Cited Art Landscape
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