Illuminating device for projecting light

Details Illuminating device for projecting light Illuminating device for projecting light

1997-10-06

2000-02-08

Tso, Laura K.

Illumination

Photographic lighting

Including specific light modifier

362 16, 362551, 362301, G03B 1502, F21V 800

Patent

active

060221178

ABSTRACT:
An illumination device includes a light source and an optical member, and is arranged to project a light beam emitted from the light source, via the optical member as illuminating light. The optical member includes a plurality of light guides each having an entrance surface opposed to the light source means, reflecting surfaces for reflecting the light beam which enters the optical member through the entrance surface, and an exit surface opposed to the entrance surface and having an area larger than the entrance surface. The plurality of light guides are adjacently disposed in such a manner that each of air layers is formed in at least part of each area at which the plurality of light guides are adjacent to each other.

REFERENCES:
patent: 4547044 (1985-10-01), Jain et al.
patent: 5117312 (1992-05-01), Dolan
patent: 5459592 (1995-10-01), Shibatani et al.
patent: 5462700 (1995-10-01), Beeson et al.
patent: 5772306 (1998-06-01), Okuchi
patent: 5813743 (1998-09-01), Naka

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