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Proceedings Paper

Coded Apertures And Detectors For Optical Differentiation
Author(s): Tony Wilson; Colin J.R. Sheppard
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Paper Abstract

The general properties which an optical system must possess to display amplitude or phase contrast of both differential and non differential form are derived. These results are applied to various forms of scanning image processing systems and it is found that by suitable choice of lens or detector distribution that the desired contrast mode may be obtained. The coherent confocal system is particularly suited to the methods of coherent processing with the additional advantage of possessing twice the spatial frequency bandwidth of conventional systems.

Paper Details

Date Published: 22 August 1980
PDF: 7 pages
Proc. SPIE 0232, 1980 Intl Optical Computing Conf II, (22 August 1980); doi: 10.1117/12.958891
Show Author Affiliations
Tony Wilson, University of Oxford (United Kingdom)
Colin J.R. Sheppard, University of Oxford (United Kingdom)


Published in SPIE Proceedings Vol. 0232:
1980 Intl Optical Computing Conf II
William T. Rhodes, Editor(s)

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