Photocopying – Projection printing and copying cameras – Multicolor picture
Patent
1988-06-09
1989-04-25
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Multicolor picture
355 35, 355 38, 355 55, G03B 2732, G03B 2752
Patent
active
048252522
ABSTRACT:
A color zoom copying apparatus is provided having a slide base which holds one lens group comprising part of a zoom lens system, and which can move in the optical axis direction of the zoom lens system. The apparatus includes structure for driving the slide base along the optical axis direction in accordance with the magnification of the zoom lens system, a movable lens frame which supports another lens group of the zoom lens system and which is supported on the slide base so as to move in the optical axis direction, and a first adjusting device for moving the movable lens frame relative to the slide base in order to correct deviations in the focus of the zoom lens system which occur as a result of variations in magnification, in accordance with displacement of the slide base. A plurality of color filters which can be independently inserted into, and retracted from, the optical path of the zoom lens system, are provided, and a second adjusting device is provided for moving the movable lens frame, independently of movement of the first adjusting device, in order to correct deviations of focus which are produced when a specified colored filter is inserted into the optical path of the zoom lens system, in association with insertion of the specified color filter.
REFERENCES:
patent: 4095879 (1978-06-01), Katayama et al.
patent: 4746955 (1988-05-01), Slayton et al.
Minefuji Nobutaka
Suzuki Minoru
Asahi Kogaku Kogyo Kabushiki Kaisha
Hayes Monroe H.
LandOfFree
Color zoom copying apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color zoom copying apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color zoom copying apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1199064