Photographic apparatus with automatic focusing means

Details Photographic apparatus with automatic focusing means Photographic apparatus with automatic focusing means

1978-02-02

1980-12-23

Gellner, Michael L.

Optics: motion pictures

Removable film strip magazine type

354 31, 354 43, 352140, 352141, G03B 310, G03B 708

Patent

active

042407265

ABSTRACT:
A still camera or motion picture camera wherein the means for monitoring the brightness of a portion of or entire scene transmits signals to an automatic focusing mechanism as well as to the exposure controls. The connection between the output or outputs of the monitoring means and the exposure controls includes elements which can transmit signals denoting the peak value, the integral value or the average value of signals denoting the scene brightness.

REFERENCES:
patent: 3830571 (1974-08-01), Imai et al.
patent: 4047187 (1977-09-01), Mashimo et al.

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