Automatic exposure adjusting device

Details Automatic exposure adjusting device Automatic exposure adjusting device

1985-05-15

1987-01-13

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 14E, G03B 2774, G03B 2780

Patent

active

046360638

ABSTRACT:
An automatic exposure adjusting device for use in a variable copying magnification type copying apparatus, which controls quantity of light of a light source by detecting photographic density of an original document by the use of a photo detector and includes a shielding plate formed with a slit aligned with an optical path for subjecting a photosensitive member to exposure. The photo detector is provided below and adjacent to the light source, while the shielding plate is provided below and adjacent to a copy face of the original document.

REFERENCES:
patent: 4544258 (1985-10-01), Takano

Affiliated with

Also associated with

Rating

Automatic exposure adjusting device 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 exposure adjusting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic exposure adjusting device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2352681