Light source for a color enlargement

Details Light source for a color enlargement Light source for a color enlargement

1984-07-30

1987-02-03

Hix, L. T.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 70, G03B 2754

Patent

active

046406093

ABSTRACT:
A light source device for a color enlarger, in which at least three linear light sources are used in order to served as a red light source, a green light source, and a blue light source, respectively, are disclosed. In the device, the linear light source serving as a red light source is arranged perpendicularly to an optical axis of a projection lens in the color enlarger. The other linear light sources serving as green and blue light sources respectively, are arranged perpendicularly to the optical axis and are symmetrical with respect to the optical axis.

REFERENCES:
patent: 1097211 (1914-05-01), Bechstein
patent: 3322487 (1967-05-01), Renner
patent: 3334542 (1967-08-01), Wenthe et al.
patent: 3630609 (1971-12-01), Clapp et al.
patent: 3716298 (1973-02-01), Reardon
patent: 4129372 (1978-12-01), Allgeier
patent: 4188111 (1980-02-01), Marvin

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