Illuminating device and photographing apparatus

Details Illuminating device and photographing apparatus Illuminating device and photographing apparatus

1997-10-02

2000-06-20

Perkey, W. B.

Photography

With object illumination for exposure

Having flash built into camera

362 16, G03B 1503

Patent

active

06078752&

ABSTRACT:
A flash device comprises a light source and an optical system for projecting light emitted from the light source onto an object, the optical system having a transparent member which is tapered toward the light source. The transparent member has an entrance surface, an exit surface opposed to the entrance surface, and a reflecting surface lying between the entrance surface and the exit surface. Part of the light emitted from the light source is made incident on the entrance surface and then exits from the exit surface after having been reflected at the reflecting surface.

REFERENCES:
patent: 3711701 (1973-01-01), Squyres
patent: 3756719 (1973-09-01), Harter
patent: 3913872 (1975-10-01), Weber
patent: 4547044 (1985-10-01), Jain et al.
patent: 4568179 (1986-02-01), Durbin et al.
patent: 5394307 (1995-02-01), Matsuura
patent: 5408572 (1995-04-01), Kriege
patent: 5459592 (1995-10-01), Shibatani et al.
patent: 5506929 (1996-04-01), Tai et al.
European Search Report dated Mar. 4, 1998.

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