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Proceedings Paper

Novel Image Duplication Technique Utilizing Fourier Optics
Author(s): Peter F. Mueller; David J. Cronin; George O. Reynolds
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Paper Abstract

In the normal process of duplicating Photographic images from original negatives, resolutions of 200 cycles/mm have been neasured. lie will present a new duplication technique which has the capability of reducing this resolution loss to a few Percent at resolutions between 300 and 500 cycles/mm while simultaneously maintaining the continuous-tone quality and dynamic range of the original. The technique creates a modulated phase image dupe which produces a high resolution, continuous-tone, speckle free, image when observed through a white light Fourier optical viewing system. Plastic phase relief images with 70mm formats were made by this technique. Resolution transfers of nearly 100% at 228 cycles/mm were measured in images having excellent continuous-tone quality. The dynamic range of the retrieved images is comparable with that achieved in conventional photographic duplicates. Diffraction efficiencies greater than 20% in one diffracted order of the viewing system were also measured in the system.

Paper Details

Date Published: 7 December 1981
PDF: 12 pages
Proc. SPIE 0292, Processing of Images and Data from Optical Sensors, (7 December 1981); doi: 10.1117/12.932808
Show Author Affiliations
Peter F. Mueller, Aerodyne Research, Inc. (United States)
David J. Cronin, Perkin-Elmer Corporation (United States)
George O. Reynolds, Honeywell Electro-Optics Operation (United States)

Published in SPIE Proceedings Vol. 0292:
Processing of Images and Data from Optical Sensors
William H. Carter, Editor(s)

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