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US 2008/0165539 A1Published application
Light-emitting device
AssigneeEpistar Corporation
InventorsChia-Liang Hsu, Shu-Ting Hsu
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Abstract
This application relates to a light-emitting device comprising a light channel having an upper surface, a lower surface opposite to the upper surface, an inner surface intersecting with each of the upper and lower surface by different angles, and an escape surface; and a light-emitting element having a bottom surface substantially parallel to the inner surface and emitting light traveling inside the light channel toward the escape surface. In an embodiment, the escape surface of the light-emitting device is an inclined plane with lens array thereon.
Claims20
A light-emitting device comprising:
- a light channel formed on a base, comprising:
- an upper surface;
- a lower surface opposite to the upper surface;
- an inner surface intersecting with the upper surface and the lower surface at different intersecting angles;
- and
- a light output surface opposite to the inner surface;
- and
- a light-emitting unit on the inner surface and emitting light to propagate inside the light channel towards the light output surface.
5 more elements
Dependencies are inferred from the claim text.