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REFINE
Browse All : Photoengraving - Halftone process and oil paintings by Kimberly-Clark Corporation
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Title
Frederic E. Ives and the Half-Tone Process
Creator
Thom, Robert A., 1915-1979
Summary
The method by which most pictures are processed for letterpress printing is called photoengraving. The procedure was developed in 1878 by Frederic E. Ives, an American technician and inventor from Philadelphia. Ives' method consists of breaking down photos or drawings into tiny dots of varying sizes. The image to be reproduced is photographed through a ruled glass screen which breaks up the different tones into dots, the number of which is determined by the fineness of the ruled lines on the screen. It is then etched into relief on a copper plate for letterpress printing.
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