Light-emitting device
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United States of America Patent
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Nov 9, 2010
Grant Date -
Jan 29, 2009
app pub date -
Jul 22, 2008
filing date -
Jul 27, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light-emitting device of a very simple configuration in which uniform LED light illumination can be obtained with a low light quantity loss, the device having a low production cost, improved emission characteristic and excellent cost efficiency and reliability. A transparent body is disposed in the vicinity of a LED, and a light-scattering layer that scatters the light of the LED is formed by coating on the light-illuminating surface of the transparent body through which the light of the LED passes. The light-scattering layer contains 2.5 parts by weight to 4 parts by weight of a filler and has a thickness of 5 μm to 20 μm.
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