Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent
1976-01-28
1978-04-04
Tomsky, Stephen J.
Photocopying
Projection printing and copying cameras
Illumination systems or details
355 70, G03B 2776, G03B 2754
Patent
active
040824497
ABSTRACT:
A latensifier for developing latent images recorded on direct print paper includes a pair of generally U-shaped fluorescent lamps mounted to expose the paper to latensifying radiations, the planes of said lamps being disposed at a right angle to each other, with a neutral density step filter arranged in association with one of the lamps to control pre-conditioning radiation to the paper, reflectors operatively associated with the second of the lamps to control additional pre-conditioning radiation to the paper and also to allow maximum use of the second lamp for recorded image development, the second lamp being selectively energized in accordance with the speed of relative movement of the lamps and paper.
REFERENCES:
patent: 2306666 (1942-12-01), Simmon
patent: 3063350 (1962-11-01), LeMassena
patent: 3225353 (1965-12-01), Erickson
patent: 3462221 (1969-08-01), Tajima et al.
patent: 3818496 (1974-06-01), Lee et al.
Curtis, Jr. Henry H.
Lapchak Markian
Burton L. D.
Honeywell Inc.
Marhoefer L. J.
Perkey William B.
Tomsky Stephen J.
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