Photocopying – Projection printing and copying cameras – Focus or magnification control
Patent
1982-03-08
1984-07-10
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Focus or magnification control
355 71, G03B 2734, G03B 2740, G03B 2770
Patent
active
044590164
ABSTRACT:
A projection device for projecting a first surface onto a second surface comprises a device for forming an image of the first surface on the second surface, a slit provided near the image forming device for making the quantity of light of the light beam on the second surface equal in each portion of the image, a device for moving the image forming device to vary the imaging magnification of the image of the first surface on the second surface, and a device for moving the slit, with movement of the image forming device, to a distance substantially equal to the distance by which the slit has been spaced apart from the image forming device before the image forming device is moved.
REFERENCES:
patent: 3438704 (1969-04-01), Schoen
patent: 3709602 (1973-01-01), Satomi
patent: 4046467 (1977-09-01), Laskowski et al.
patent: 4113373 (1978-09-01), Eppe et al.
patent: 4260249 (1981-04-01), Armitage, Jr. et al.
Morikawa Teruo
Tateoka Masamichi
Tokuhara Mitsuhiro
Torigai Akiyoshi
Toyono Tsutomu
Canon Kabushiki Kaisha
Wintercorn Richard A.
LandOfFree
Projection 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 Projection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1574415