04600666 is referenced by 7 patents and cites 2 patents.

The photoscreen for making a halftone reproduction from a photograph is used in a process where the photograph is placed in a reproducing position relative to a reproducing apparatus and the screen is interposed between the photograph and the reproducing means of the reproducing apparatus so that upon operation of the reproducing apparatus, a halftone reproduction is created. The photoscreen comprises a sheet of transparent material having on the bottom surface thereof an array of light modulating, varying density, light gray, vignetting dots mixed with an array of light modulating white dots preferably printed on the top surface thereof.

Integrated photoscreen for making a halftone reproduction printing plate from a photograph
Application Number
Publication Number
Application Date
January 5, 1984
Publication Date
July 15, 1986
Edmund S Zink
148 E. Harding, Des Plaines, 60016
Thomas R Vigil
G03F 5/00
G03F 9/00
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