Optical device and apparatus comprising the optical device

Details Optical device and apparatus comprising the optical device Optical device and apparatus comprising the optical device

2007-11-27

2007-11-27

Ward, John Anthony (Department: 2885)

Illumination

Light source and modifier

Including reflector

C362S327000, C362S555000, C250S216000

Reexamination Certificate

active

11135581

ABSTRACT:
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).

REFERENCES:
patent: 5084804 (1992-01-01), Schairer
patent: 6342670 (2002-01-01), Lin et al.
patent: 1-143368 (1989-06-01), None
English translation of Japanese Patent Application No. H1-143368, Publication Date: Jun. 5, 1989, 10 pages.

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