Light measuring device

Details Light measuring device Light measuring device

1988-03-22

1990-04-03

Perkey, W. B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

354425, 354465, 3541271, 356223, 356229, 356215, 356227, G03B 1502, G01J 144

Patent

active

049144685

ABSTRACT:
A light measuring device calculates and displays a proper exposure condition even when the combination of shutter speed and aperture is predetermined by using a flashlight component and a measured light data.

REFERENCES:
patent: 4291979 (1981-09-01), Yuasa et al.
patent: 4367932 (1983-01-01), Ishikawa et al.
patent: 4373793 (1983-02-01), Taniguchi et al.
patent: 4460263 (1984-07-01), Gfeller et al.
patent: 4717934 (1988-01-01), Kobayashi et al.

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