Automatic exposure control circuit for a camera

Details Automatic exposure control circuit for a camera Automatic exposure control circuit for a camera

1974-10-29

1976-08-10

Hix, L. T.

G03B 708

Patent

active

039745090

ABSTRACT:
An automatic exposure control circuit for a camera or the like includes a memory circuit comprising a series connection of a capacitor and an impedance element connected to an input of a high input impedance circuit to enable the measurement of the amount of mean light during photography under a fluorescent lamp.

REFERENCES:
patent: 3611894 (1971-10-01), Minneste
patent: 3712192 (1973-01-01), Ono et al.
patent: 3817617 (1974-06-01), Weinert
patent: 3827066 (1974-07-01), Yanagisawa et al.

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