This paper discusses research on an automatic focusing system for IC-linewidth measuring instruments. The instrument incorporates a collimated light source, a device to move a sample in small, precise increments, and a charge-coupled device. The autofocusing model would measure the step-height to a focus position. Thickness of samples on an enlarged scale were measured to verify the feasibility of this device.
Library of Congress Subject Headings
Photography--Printing processes--Pigment--Testing; Images, Photographic--Testing
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Zych, Anthony, "Dye image stability of polaroid time zero supercolor prints" (1987). Thesis. Rochester Institute of Technology. Accessed from
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