Exposure system for photo-sensitive recording medium

Photocopying – Projection printing and copying cameras – With developing

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355 32, G03B 2732

Patent

active

048856029

ABSTRACT:
In an exposure system, a photo-sensitive recording medium rests on a resting surface of a table. The recording medium on the resting surface is illuminated with light from a light source and is exposed to the light. The resting surface has reflectivity which is so determined as to increase from a central region of the resting surface gradually toward opposite end regions thereof in such a manner that a sum of a quantity of the light from the light source, with which the recording medium is illuminated directly, and a quantity of light transmitted through the recording medium and reflected by the resting surface, with which the recording medium is illuminated indirectly, is made substantially uniform over the entire surface of the recording medium.

REFERENCES:
patent: 2698561 (1955-01-01), Crowell
patent: 3811770 (1974-05-01), Baus, Jr. et al.
patent: 4806982 (1989-02-01), Yamamoto et al.
patent: 4806984 (1989-02-01), Asano

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