Intermediate adapter

Details Intermediate adapter Intermediate adapter

1982-09-29

1984-09-11

Perkey, William B.

354431, G03B 1505

Patent

active

044706855

ABSTRACT:
Disclosed is an intermediate adapter to be used between the camera body and the photographing lens during close-up photography. A light beam splitter in the adapter housing projects part of the light from the lens to a sensor to produce an electric signal. An illumination device that lights a subject to be photographed is controlled by the signal produced by the light split by the light beam splitter. The beam splitter includes a diffraction arrangement that directs a portion of the light from the path to the film.

REFERENCES:
patent: 3726197 (1973-04-01), Hasegawa et al.
patent: 4172646 (1979-10-01), Matsumoto
patent: 4178084 (1979-12-01), Matsumoto et al.

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