Indicating exposure meter for a camera

Details Indicating exposure meter for a camera Indicating exposure meter for a camera

1975-11-26

1977-09-27

Adams, Russell E.

Optics: measuring and testing

Range or remote distance finding

With photodetection

354 53, 356226, G03B 1720, G03B 700

Patent

active

040514919

ABSTRACT:
An indicating exposure meter for a camera has an array of indicating elements, each of which has an active and an inactive state ascertainable by inspection, and a circuit responsive both to light from the scene being photographed by the camera, and to the actual setting of the exposure factors of the camera for controlling the state of each indicating element. The magnitude as well as the direction of the displacement of the setting of the exposure factors from the correct setting is ascertainable from visual inspection of the location of the active indicator elements in the array.

REFERENCES:
patent: 3581643 (1971-06-01), Yoshimura
patent: 3724955 (1973-04-01), Takahashi et al.
patent: 3883252 (1975-05-01), Ando
patent: 3959791 (1976-05-01), Takahashi et al.
patent: 3964076 (1976-06-01), Ichihashi et al.
patent: 3967288 (1976-06-01), Yamamoto

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