Device for measuring light under ambient light and/or flash ligh

Details Device for measuring light under ambient light and/or flash ligh Device for measuring light under ambient light and/or flash ligh

1979-11-16

1981-09-29

Corbin, John K.

Optics: measuring and testing

Photometers

Photoelectric

356215, 354 24, G01J 142, G01J 146, G03B 708

Patent

active

042919797

ABSTRACT:
A light measuring device for use in photography and a method therefor is disclosed, in which the quantity of light during a time interval when the flash light is present is measured and also the quantity of light under the ambient light only is measured for obtaining various exposure information for photography using the flash light.

REFERENCES:
patent: 4176955 (1979-12-01), Yamada et al.

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