Camera with automatic light adjusting device

Details Camera with automatic light adjusting device Camera with automatic light adjusting device

1992-04-29

1994-05-03

Gellner, Michael L.

354432, G03B 1505, G03B 708

Patent

active

053091930

ABSTRACT:
A camera provided with an automatic light adjusting device comprises a flash apparatus for performing a preliminary flash before a main flash, a light metering device for at least metering a light which is emitted from the flash apparatus and reflected by a photographic field, a light metered value correcting device for correcting a light metered value upon the preliminary flash by eliminating a component of stationary light excluding the light emitted from the flash apparatus and reflected by the photographic field, from the light metered value upon the preliminary flash which is metered by the light metering device, and a light adjusting device for adjusting the main flash of the flash apparatus based on the light metered value corrected by the light metered value correcting device.

REFERENCES:
patent: Re32437 (1987-06-01), Taniguchi et al.
patent: 3836924 (1974-09-01), Kawasaki
patent: 4291979 (1981-09-01), Yuasa et al.
patent: 4373793 (1983-02-01), Taniguchi et al.
patent: 4655576 (1987-04-01), Yuasa et al.
patent: 4809030 (1989-02-01), Takagi et al.
patent: 5164759 (1992-11-01), Yausukawa
patent: 5172157 (1992-12-01), Takagi

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