Exposing apparatus for color copier

Details Exposing apparatus for color copier Exposing apparatus for color copier

1987-08-04

1988-07-26

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 55, G03B 2732, G03B 2752

Patent

active

047604271

ABSTRACT:
An exposing apparatus for use in a color copier in which reflection light from an original image mounted on an original mounting plate thereof and illuminated with white light is passed through three color separation filters which are inserted, in sequence, into an optical path of a common focussing system of said copier, and color-separated images obtained from said filters are focussed in sequence on a common image plane. Transparent flat plates having thicknesses suitable to correct optical path lengths for the respective color-separated lights such that effective value of focussing optical path lengths of a focussing element of the focussing system for the respective color-separated lights become equal to a distance of the focussing system between a plane of the original and the image plane are inserted into the focussing optical path in sequence in synchronism with the sequential insertion of the color separating filters into the optical path.

REFERENCES:
patent: 4110036 (1978-08-01), Guillaume
patent: 4194834 (1980-03-01), Guillaume
patent: 4424589 (1984-01-01), Thomas et al.
patent: 4696545 (1987-09-01), Lama et al.

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