Photometry device and method

Details Photometry device and method Photometry device and method

1996-12-16

1998-06-23

Metjahic, Safet

Photography

With exposure objective focusing means, focusing aid, or...

Having accumulation photoarray and time control means

396111, 396233, 25055904, G03B 1336, G03B 708

Patent

active

057714118

ABSTRACT:
A photometry device includes a light-receiving element that photoelectrically converts light from the subject field and outputs an electrical signal corresponding to the intensity of the light. The light-receiving element is provided with at least one light-receiving pixel that is optically shielded from the light A photometry value input unit inputs the photometric output from the light-receiving element. An accumulation time setting unit sets the accumulation time of the light-receiving element on the basis of the output of the photometry value input unit, and computes the setting value of the accumulation time on the basis of the output of the light-receiving pixel.

REFERENCES:
patent: 5068737 (1991-11-01), Taniguchi et al.
patent: 5151732 (1992-09-01), Akashi et al.
patent: 5220375 (1993-06-01), Ishida et al.
patent: 5267015 (1993-11-01), Kai
patent: 5404193 (1995-04-01), Harada
patent: 5467161 (1995-11-01), Odaka
patent: 5485239 (1996-01-01), Ohsawa
patent: 5497215 (1996-03-01), Iwasaki

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