Digital exposure meter

Details Digital exposure meter Digital exposure meter

1975-10-16

1977-06-14

Corbin, John K.

Optics: measuring and testing

Photometers

Photoelectric

354 23D, 354 24, 356226, G01J 142, G03B 708

Patent

active

040294218

ABSTRACT:
This invention relates to a digital exposure meter in which brightness information is digitized and exposure factors such as film sensitivity are converted to digital values to perform digital computation. Accordingly, an exposure value, average exposure value, aperture value or shutter time is derived while a computer having various operation functions being controlled in sequence by sequence control means.

REFERENCES:
patent: 3670637 (1972-06-01), Mori et al.
patent: 3909137 (1975-09-01), Kisanuki

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