G - Physics – 03 – G
Patent
G - Physics
03
G
314/7, 95/95
G03G 13/01 (2006.01) G03G 15/01 (2006.01)
Patent
CA 1063157
ABSTRACT OF THE DISCLOSURE Apparatus for optically imaging a halftone pattern on a xerographic photoreceptor to produce color copies of a color original. The apparatus includes a phase screen for providing a predetermined halftone pattern, the screen produc- ing substantially the same pattern at the same spatial frequency over the visible light spectrum.
242371
Goren Robert N.
Marks Lawrence M.
Streifer William
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