Light measuring device for camera

Details Light measuring device for camera Light measuring device for camera

1983-01-31

1985-04-09

Perkey, William B.

354478, 354481, 3542891, G03B 7099, G03B 1720

Patent

active

045098484

ABSTRACT:
At least one electro-optical light shielding member is disposed close to a reticle of a photographic camera arranged for forming an image of an object to be photographed. The light shielding member is electrically controlled to have the reticle partly light-shielded by the light shielding pattern of the light shielding member in such a manner as to permit selection between an averaging light measuring mode and a spot light measuring mode.

REFERENCES:
patent: 3218948 (1965-11-01), Kuppenbender
patent: 3532043 (1970-10-01), Shimomura et al.
patent: 4354754 (1982-10-01), Takahashi et al.

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