07300183 is referenced by 101 patents and cites 3 patents.

On a front wall of a mold resin (13) sealing a light emitter (12), a direct emission region (18), through which the light emitted from the light emitter (12) directly passes to the outside, and a total reflection region (19), by which the light emitted from the light emitter (12) is totally reflected, are formed. The direct emission region (18) is formed into a shape of a convex lens. A light reflection portion (20) which is made of a concave mirror is provided on the rear face of the mold resin (13). When a part of the light emitted from the light emitter (12) passes through the direct emission region (18), it is affected by the lens to be emitted to the front direction. After another part of the light emitted from the light emitter (12) is totally reflected by the total reflection region (19), it is reflected by the light reflection portion (20) to be emitted to the front direction through the total reflection region (19).

Title
Optical device and apparatus comprising the optical device
Application Number
11/135581
Publication Number
7300183 (B2)
Application Date
May 23, 2005
Publication Date
November 27, 2007
Inventor
Yukari Terakawa
Kyoto
JP
Kenji Homma
Kyoto
JP
Naru Yasuda
Uji
JP
Hayami Hosokawa
Tsuzuki-gun
JP
Hironobu Kiyomoto
Kyoto
JP
Agent
Osha Liang
Assignee
Omron Corporation
JP
IPC
F21V 7/04
F21V 5/00
F21V 7/00
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