Screen for an electrophotographic printing machine

Details Screen for an electrophotographic printing machine Screen for an electrophotographic printing machine

1976-10-29

1978-02-07

Moses, R. L.

Photocopying

Including fiber optics

96 45, 96116, G03G 1501

Patent

active

040724140

ABSTRACT:
An electrophotographic printing machine in which a transparency light image is projected through a screen having a plurality of opaque regions. At least a portion of the opaque regions have a light reflecting surface on one side thereof and a light absorbing surface on the other side thereof. The screen is positioned so that the light reflecting surfaces of the opaque regions form a visual image of the transparency light image being projected therethrough. Incident light rays are absorbed by the absorbing surfaces of the opaque regions.

REFERENCES:
patent: 2598732 (1952-06-01), Walkup
patent: 3905822 (1975-09-01), Marks
patent: 4027962 (1977-06-01), Mailloux

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