Metering system using a focus detecting optical system

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Details

354412, 354432, G03B 708

Patent

active

044887990

ABSTRACT:
There is provided a metering system using a focus detecting optical system characterized in that in a light path formed by an optical system for directing a light beam to focus detecting photoelectric transducer means, metering photoelectric transducer means, together with the focus detecting photoelectric transducer means, is disposed to effect the measurement of the brightness of an object as well.

REFERENCES:
patent: 3286097 (1966-11-01), Norwood
patent: 3498193 (1970-03-01), Shimomura et al.
patent: 4302089 (1981-11-01), Fukuhara
patent: 4322142 (1982-03-01), Kawamura et al.
patent: 4324464 (1982-04-01), Wick
patent: 4349254 (1982-09-01), Jyojiki et al.

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