Apparatus and method for producing gradated exposures on radiati

Photocopying – Projection printing and copying cameras – Step and repeat

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355 71, 354 20, G03B 2772

Patent

active

054001161

ABSTRACT:
A method and apparatus (10) referred to as a step and repeat sensitometer directs radiant energy (18) from a radiant energy source (16) into a diffuse integrating chamber (2) which uniformly mixes and directs the radiant energy (18) onto an exposure plane (14) where a radiation sensitive sample (1) is positioned so that individual areas of the sample (1) are exposed to readily adjustable levels of illuminance producing gradated exposures.

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