Photometry device and method

Details Photometry device and method Photometry device and method

1995-04-10

1997-05-06

Metjahic, Safet

Photography

Exposure control circuit

Having plural photocells

348298, 348241, G03B 708, H04N 964, H04N 314

Patent

active

056276206

ABSTRACT:
An accumulation-type light receiving element photoelectrically converts light from the subject field and outputs an electric signal on the basis of the brightness. An accumulation time setting component sets the accumulation time of the light receiving element and an accumulation operation component carries out accumulation in the light receiving element on the basis of the information from the accumulation time setting component. A photometric value input component inputs the photometry output from the light receiving element. A brightness value calculating component calculates the brightness value of the subject field on the basis of the outputs of the accumulation time setting component and the photometric value input component and further corrects the accumulation time of the light receiving element that has been input from the accumulation time setting component.

REFERENCES:
patent: 4422741 (1983-12-01), Masunaga et al.
patent: 5068737 (1991-11-01), Taniguchi et al.
patent: 5070353 (1991-12-01), Komiya et al.
patent: 5083150 (1992-01-01), Nagasaki et al.
patent: 5126779 (1992-06-01), Maitani
patent: 5333028 (1994-07-01), Akashi et al.
patent: 5450163 (1995-09-01), Iwasaki
patent: 5483318 (1996-01-01), Hamada et al.

Affiliated with

Also associated with

Rating

Photometry device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photometry device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometry device and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2136111