Novel Image Duplication Technique Utilizing Fourier Optics

Peter F. Mueller; David J. Cronin; George O. Reynolds

doi:10.1117/12.932808

7 December 1981 Novel Image Duplication Technique Utilizing Fourier Optics

Peter F. Mueller, David J. Cronin, George O. Reynolds

Proceedings Volume 0292, Processing of Images and Data from Optical Sensors; (1981) https://doi.org/10.1117/12.932808
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

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.

Citation Download Citation

Peter F. Mueller, David J. Cronin, and George O. Reynolds "Novel Image Duplication Technique Utilizing Fourier Optics", Proc. SPIE 0292, Processing of Images and Data from Optical Sensors, (7 December 1981); https://doi.org/10.1117/12.932808

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