Photocopying – Projection printing and copying cameras – Multicolor picture
Patent
1991-09-17
1993-06-08
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Multicolor picture
355 35, G03B 2772, G03B 2754
Patent
active
052184021
ABSTRACT:
An apparatus and method for printing a color image from a photographic transparency onto a photosensitive medium is claimed. A plurality of light sources each provide light of a different color when energized. The different color light of each light source has a light intensity level established by an energizing level applied thereto. A light integrator combines the different colored light from the light sources to produce light of a composite color along a primary optical path. The photographic transparency is disposed along the primary optical path such that the composite color light passes through the photographic transparency and produces a projection of the color image from the photographic transparency. An electronic imager is provided for imaging the projected color image of the photographic transparency. A device is provided for exposing the photosensitive medium with the projected color image. A power supply is provided for energizing the plurality of light sources. The power supply provides a first plurality of predetermined energizing levels to the plurality of light sources respectively to produce a first composite color light that substantially compensates for the sensitivity response of the electronic imager. Alternately, the power supply provides a second plurality of predetermined energizing levels to the plurality of light sources respectively to produce a second composite color light that substantially compensates for the sensitivity response of the photosensitive medium.
REFERENCES:
patent: 3765758 (1973-10-01), Jackson et al.
patent: 3800070 (1974-03-01), Barbieri
patent: 3825335 (1974-07-01), Reynolds
patent: 4101217 (1978-07-01), Fergg et al.
patent: 4124292 (1978-11-01), Van Wandelen
patent: 4299451 (1981-11-01), Task et al.
patent: 4519703 (1985-05-01), Lehman et al.
patent: 4565441 (1986-01-01), Evans et al.
patent: 4610538 (1986-09-01), Takenaka
patent: 4676628 (1987-06-01), Asbury
patent: 4692794 (1987-09-01), Suzuki
patent: 4809064 (1989-02-01), Amos et al.
patent: 4812879 (1989-03-01), Suzuki
patent: 4821073 (1989-04-01), Backus et al.
patent: 4845531 (1989-07-01), Nagano
patent: 4888612 (1989-12-01), Yamamoto
Beaulieu Dennis N.
Horton Robert L.
Eastman Kodak Company
Hayes Monroe H.
Trapani Lawrence P.
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