Photocopying – Including fiber optics
Patent
1982-02-12
1983-07-26
Wintercorn, Richard A.
Photocopying
Including fiber optics
250227, 350 9631, 355 38, 358225, 358302, G03B 2700, G02B 514
Patent
active
043951082
ABSTRACT:
A color balanced scratch suppressing projection apparatus for color transparencies includes an objective lens having a rectangular aperture and defining first and second conjugate planes. An integrating bar having a rectangular cross section and first and second end faces is located with its first end face adjacent the first conjugate plane of the objective lens. A condenser lens, disposed between the first conjugate plane and the first end face of the integrating bar forms an image of the rectangular aperture on the second end face of the bar. The linear dimensions of the image of the rectangular aperture are an even multiple of the dimensions of the second end face.
In one embodiment of the invention, the projection apparatus is a color transparency scanner, a flying spot light source such as a CRT is located at the second conjugate plane of the objective lens, and a plurality of color photosensors are located at the second end face of the integrating bar.
In an alternative embodiment, the projection apparatus is a color projection printer, a photosensitive print medium is located at the second conjugate plane of the objective lens, and a plurality of colored light sources are located at the second end of the integrating bar.
REFERENCES:
patent: 1781800 (1930-11-01), Baird
patent: 2947810 (1960-08-01), Horsley
patent: 3170022 (1965-02-01), Reesen
patent: 3488117 (1970-01-01), Weisglass
patent: 3514200 (1970-05-01), Bowker
patent: 3561867 (1971-02-01), Simmon
patent: 3588246 (1971-06-01), July
patent: 3672768 (1972-06-01), Schaub et al.
patent: 3832028 (1974-08-01), Kapron
patent: 4017179 (1977-04-01), Pone', Jr.
patent: 4023903 (1977-05-01), Scheib
Phillips Tech. Review, vol. 21, p. 234 "Flying--Spot Scanners for Colour Television" by H. Van Ginkel.
Journal of the SMPTE, vol. 73, Jul. 1964 "A Review of Telecine Systems" by D. R. Morse.
Phillips Tech. Journal, vol. 24, 1962-1963, No. 9 "Colour Separation in Colour--Television Cameras" by Lange Bouwhuis.
Close Thomas H.
Eastman Kodak Company
Wintercorn Richard A.
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