Exposure storage device

Details Exposure storage device Exposure storage device

1974-02-12

1976-01-20

Sheer, Richard M.

354 50, 354 51, G03B 708, G03B 1700

Patent

active

039342581

ABSTRACT:
An exposure value storage device for use in a photographic camera includes a metering circuit, a storage circuit for storing the output of the metering circuit, and a control circuit for controlling exposure in accordance with a storage value stored in the storage circuit. A storage switch is provided for electrically disconnecting the metering and storage circuits to cause the storing function of the storage circuit. The metering and storage circuits may be supplied with power from a power source through a power switch. The power switch may be movable between two positions for opening and closing the power switch. The storage switch may be actuated by a member movable between two positions for closing and opening the storage switch electrically to connect and disconnect the metering and storage circuits. The first-named member, when in the first of its two positions, prevents movement of said another member from its first position to its second position.

REFERENCES:
patent: 3367251 (1968-02-01), Furvta
patent: 3425327 (1969-02-01), Stuper et al.
patent: 3623410 (1971-11-01), Mita
patent: 3693524 (1972-09-01), Furvta
patent: 3756131 (1973-09-01), Kuramoto et al.

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