Notch filter for color transparency copying machines

Details Notch filter for color transparency copying machines Notch filter for color transparency copying machines

1975-07-30

1977-03-22

Hix, L. T.

Photocopying

Including fiber optics

96 12, 355 32, 355 71, 355 79, G03G 1501

Patent

active

040133559

ABSTRACT:
An electrophotographic printing machine in which color transparencies are reproduced. The printing machine includes a notch filter which transmits blue and green light images of the color transparency therethrough while blocking a portion of the red light image from passing therethrough.

REFERENCES:
patent: 3248216 (1966-04-01), Weigl
patent: 3517596 (1970-06-01), Johnson et al.
patent: 3547533 (1970-12-01), Stokes et al.
patent: 3561866 (1971-02-01), Cohen
patent: 3642370 (1972-02-01), Meredith et al.
patent: 3936173 (1976-02-01), Kidd et al.

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