Subtractive color printing device

Details Subtractive color printing device Subtractive color printing device

1980-02-19

1982-03-16

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 38, G03B 2772

Patent

active

043198341

ABSTRACT:
A subtractive color printing device for use between a source of white light and a color transparency or negative intended to be exposed to at least a portion of the spectrum of such source. An aperture is disposed in the exposure path between the light source and the negative. A plurality of color filters, each mounted on a separate carrier frame, are positioned for independent adjustment to different positions between one position fully exposing and another position fully spanning the aperture. Each filter carrier is driven to such different positions by a motor. A computer is programmed to power the motors, upon a user input, to drive the filter carriers to preselected positions.

REFERENCES:
patent: Re28075 (1974-07-01), Kavanaugh
patent: 1653946 (1927-12-01), Clausen
patent: 3709601 (1973-01-01), Zahn et al.
patent: 3813158 (1974-05-01), Zahn et al.
patent: 4101217 (1978-07-01), Fergg et al.
patent: 4149799 (1979-04-01), Pone et al.
patent: 4175853 (1979-11-01), Harvey
patent: 4235551 (1980-11-01), Harvey

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1639734