Automatic light adjustment apparatus for a camera on which a pho

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

354431, 354432, G03B 1505

Patent

active

055045537

ABSTRACT:
An automatic light adjustment apparatus for a camera on which a photographic lens can be mounted freely comprises a flash device capable of emitting light, a photometric device which divides a field into a plurality of areas for the photometry of the light beam which is emitted from the flash device and reflected by each of the areas, in which the light beam is arranged to reach the photometric device after being reflected by the film plane, a photometric output correcting device which corrects the photometric output of the photometric device in accordance with the characteristics of the mounted photographic lens, and a light adjustment controlling device which suspends the light emission of the flash device in accordance with the photometric output corrected by the photometric output correcting device.

REFERENCES:
patent: Re32437 (1987-06-01), Taniguchi et al.
patent: 3842424 (1974-10-01), Tsunekawa et al.
patent: 4455071 (1984-06-01), Kato et al.
patent: 4636054 (1987-01-01), Saegusa
patent: 4717934 (1988-01-01), Kobayashi
patent: 4833498 (1989-05-01), Kato et al.
patent: 4905035 (1990-02-01), Takagi et al.
patent: 4965620 (1990-10-01), Takagi et al.
patent: 4977424 (1990-12-01), Mukai et al.
patent: 4985726 (1991-01-01), Fujibayashi et al.
patent: 5164759 (1992-11-01), Yasukawa
patent: 5172157 (1992-12-01), Takagi
patent: 5218397 (1993-06-01), Takagi
patent: 5221941 (1993-06-01), Matsui
patent: 5227836 (1993-07-01), Yasukawa et al.
patent: 5231447 (1993-07-01), Takagi
patent: 5231448 (1993-07-01), Sato et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Automatic light adjustment apparatus for a camera on which a pho does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic light adjustment apparatus for a camera on which a pho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic light adjustment apparatus for a camera on which a pho will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2020009

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.