Additive color lamphouse

Details Additive color lamphouse Additive color lamphouse

1990-03-12

1991-07-16

Hix, L. T.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 69, 355 77, 355 68, G03B 2772

Patent

active

050328662

ABSTRACT:
An additive color light source for professional photographic printing is disclosed. The lamphouse has a closed loop light intensity feedback control system for regulating the light sources within the lamphouse.

REFERENCES:
patent: 3630609 (1971-12-01), Clapp et al.
patent: 4004214 (1977-01-01), Evans
patent: 4050808 (1977-09-01), Gyori et al.
patent: 4068943 (1978-01-01), Gyori
patent: 4093908 (1978-06-01), Evans
patent: 4214171 (1980-07-01), Gyori
patent: 4371259 (1983-02-01), Howitt
patent: 4423953 (1984-01-01), Burnham
patent: 4565441 (1986-01-01), Evans et al.
patent: 4760609 (1988-07-01), Tamagaki
patent: 4935772 (1990-06-01), Wakui et al.
Hazeltine Product Literature-Date of Publication is Unknown.

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