Illumination device and illumination unit

Details Illumination device and illumination unit Illumination device and illumination unit

2006-10-18

2009-10-27

Alavi, Ali (Department: 2875)

Illumination

Plural light sources

With modifier

C362S240000

Reexamination Certificate

active

07607799

ABSTRACT:
Light from a LED (point-like light source) is expanded smoothly to a desirable range at a high efficiency by a light flux control member. The light flux control member is provided with a lens portion located at a part corresponding to the LED and a mount portion (body portion) detachably supporting the lens portion. The lens portion has a back face provided with a recess located as to correspond to the LED. The recess expands light from the LED smoothly and efficiently to a broad range, bringing an emission from a front face (fore face) toward a wide range. A member-to-be-illuminated supplied with the emission is illuminated uniformly. LEDs and recesses are made enable to be arranged flexibly without need of an increased number of molds.

REFERENCES:
patent: 4345308 (1982-08-01), Mouyard et al.
patent: 5490049 (1996-02-01), Montalan et al.
patent: 5526236 (1996-06-01), Burnes et al.
patent: 6773139 (2004-08-01), Sommers
patent: 7172314 (2007-02-01), Currie et al.
patent: 59-226381 (1984-12-01), None
patent: 63-6702 (1988-01-01), None
patent: 2002-49326 (2002-02-01), None

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