Camera with illuminating optical system

Details Camera with illuminating optical system Camera with illuminating optical system

1996-06-20

1997-04-01

Gray, David M.

Photography

With object illumination for exposure

Having flash built into camera

362 16, G03B 1503

Patent

active

056171633

ABSTRACT:
A camera equipped with an illuminating optical system for illuminating a phototaking range of a phototaking lens is configured so that the illuminating optical system includes a light source and a direction unit for directing a light beam from the light source to illuminate the phototaking range, and so that the direction unit composed of includes a Fresnel lens having a cylindrical envelope plane.

REFERENCES:
patent: 4356538 (1982-10-01), Plummer
patent: 4460942 (1984-07-01), Pizzuti et al.
patent: 5055976 (1991-10-01), Arai

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