Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-07-17
2007-07-17
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C362S327000, C359S727000
Reexamination Certificate
active
11348974
ABSTRACT:
This invention improves the use efficiency of light emitted by a solid light emitter such as a light emitting diode, and realizes a desired directional pattern. On a front boundary surface of a mold resin13sealing a light emitter12, there are formed a direct emission region18for emitting the light from the light emitter12and a total reflection region19for totally reflecting the light from the light emitter12. The direct emission region18is convex lens-shaped. A light reflecting portion20having a concave mirror shape is disposed on a rear wall of the mold resin13. A part of light emitted from the light emitter12is emitted forward by receiving an optical lens action when it passes through the direct emission region18. Another part of the light emitted by from the light emitter12is totally reflected by the total reflection region19, and is reflected by the light reflecting portion20, and emitted forward from the total reflection region19.
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Patent Abstracts of Japan, Publication No. 07-058362 dated Mar. 3, 1995, 2 pages.
Patent Abstracts of Japan, Publication No. 01-130578 dated May 23, 1989, 2 pages.
Patent Abstracts of Japan, Publication No. 01-275941 dated Oct. 13, 1998, 2 pages.
Patent Abstracts of Japan, Publication No. 08-222769 dated Aug. 30, 1996, 2 pages.
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Patent Abstracts of Japan, Publication No. 10-070305 dated Mar. 10, 1998, 2 pages.
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Homma Kenji
Hosokawa Hayami
Kiyomoto Hironobu
Terakawa Yukari
Yasuda Naru
Luu Thanh X.
Omron Corporation
Osha & Liang LLP
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