Manual additive lamphouse for aerial images of caption stands an

Details Manual additive lamphouse for aerial images of caption stands an Manual additive lamphouse for aerial images of caption stands an

1981-04-14

1983-02-08

Wintercorn, Richard A.

Photocopying

Including fiber optics

354 4, 355 32, G03B 2700, G03B 2732, G03B 2752

Patent

active

043726674

ABSTRACT:
The lamphouse comprises a white-light source and a primary optical fiber subdivided into three secondary fibers for guiding the white light from the source through an optical system comprising rotatable disks fitted with peripheral lenses having graduated neutral gray densities. Any one lens or pair of lenses can be positioned on the path of one of the three beams emerging from the secondary optical fibers in order to dose to the required value the red, blue or green primary color to be selected by any one of three dichroic exit mirrors.

REFERENCES:
patent: 3519347 (1970-07-01), Bowker et al.
patent: 4129372 (1978-12-01), Allgeier
patent: 4319830 (1982-03-01), Roach

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