LIGHT-EMITTING DEVICE AND A LENS THEREOF
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United States of America Patent
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N/A
Issued Date -
Sep 20, 2007
app pub date -
Jan 4, 2007
filing date -
Mar 15, 2006
priority date (Note) -
Abandoned
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Abstract
A lens includes a lens body having a bottom surface, a reflective surface, and a refractive surface. The bottom surface is to be disposed proximate to a light-emitting component. The reflective surface is disposed opposite to the bottom surface along a lens axis, and reflects a first portion of the light provided by the light-emitting component that is incident thereon toward the refractive surface. The refractive surface extends from an edge of the reflective surface to the bottom surface, and refracts a second portion of the light provided by the light-emitting component that is incident thereon as well as the first portion of the light reflected by the reflective surface theretoward in sideward directions relative to the light-emitting component. The lens body has cross-sections transverse to the lens axis, sizes of which increase gradually from a junction of the reflective surface and the refractive surface toward the bottom surface.
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