Metering device

Details Metering device Metering device

1981-08-21

1983-11-01

Perkey, William B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356222, G03B 708, G03B 728, G01J 144

Patent

active

044127308

ABSTRACT:
A metering device for metering an object field by dividing it into a plurality of areas and producing a plurality of metering outputs corresponding to the brightnesses of said areas includes means for extracting from the plurality of metering outputs a plurality of reference outputs different in level from one another, means for evaluating the level of at least one of the reference outputs, and means responsive to the evaluating means to select and put out one of the reference outputs.

REFERENCES:
patent: 4214826 (1980-07-01), Uchida et al.

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