Reflex copying process onto light-sensitive recording materials

A copying process for recording an image of an original material upon a light-sensitive vesicular imaging material by reflex exposure to imaging light, the light-sensitive vesicular imaging material having an imaging layer comprising a polymeric vehicle which is softenable upon heating above ambient temperature to permit the formation of a recorded image in the form of light-scattering or reflecting gas vesicles in those areas struck by imaging light, said process comprising the steps of:

• selecting a screen;
• interposing the screen between the source of imaging light and the light-sensitive vesicular imaging material, the screen transmitting the light incident from the source of imaging light in separate bundles of light rays;
• reflex imaging the light-sensitive vesicular imaging material by means of the bundles of light rays transmitted through the light-sensitive vesicular imaging material and reflected from the original material and;
• softening the polymeric vehicle of the light-sensitive vesicular imaging material by heating said vesicular imaging material to record an image of the original material in the form of gas vesicles in the imaging layer.