Slit scanning exposure apparatus

Details Slit scanning exposure apparatus Slit scanning exposure apparatus

1991-11-13

1993-10-05

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 74, 355 71, G03B 2732, G03B 2752

Patent

active

052509800

ABSTRACT:
The improved slit scanning exposure apparatus has a variable slit assembly that is provided in proximity with the exposing zone and which is composed of two slit plates movable independently of each other in synchronism with the scanning speed. The apparatus may additionally have a color filter that can be inserted into the optical path of reflected light from the image on a document in the scanning direction. The apparatus is capable of preventing flare from being admitted through an exposure slit to a light-sensitive material on the exposure position when it is being exposed from light reflected from the document image. In addition, the apparatus enables more than one document image to be edited into a single image and permits the color filter to be inserted into the optical path of reflected light without causing unevenness in colors.

REFERENCES:
patent: 3967894 (1976-07-01), Tsilibes
patent: 4896185 (1990-01-01), Okuzawa

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