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Proceedings Paper

Practical aspects of image system validation using trans-illumination
Author(s): Andrew T. Cochrane; Garth C. Robins; Gary J. Baker; Raymond M. Bell; Vassilis G. Zarifis; Bruce J. Herman
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Paper Abstract

The effects upon imaging due to varying the spatial coherence of the illumination in an optical system are studied. A rotating diffuser is located directly behind the object in an optical system and is trans-illuminated with spatially coherent monochromatic light. The statistical properties of the diffuser surface determine the scattering cone angle and the partial coherence effects in the image. A model is presented that can be used to determine the diffuser properties required to yield incoherent imaging. Two metrics are used to determine if an image is incoherent: the apparent transfer function and image contrast.

Paper Details

Date Published: 23 June 2006
PDF: 11 pages
Proc. SPIE 6271, Modeling, Systems Engineering, and Project Management for Astronomy II, 62711D (23 June 2006); doi: 10.1117/12.672738
Show Author Affiliations
Andrew T. Cochrane, Lockheed Martin Advanced Technology Ctr. (United States)
Garth C. Robins, Lockheed Martin Advanced Technology Ctr. (United States)
Gary J. Baker, Lockheed Martin Advanced Technology Ctr. (United States)
Raymond M. Bell, Lockheed Martin Advanced Technology Ctr. (United States)
Vassilis G. Zarifis, Lockheed Martin Advanced Technology Ctr. (United States)
Bruce J. Herman, Lockheed Martin Advanced Technology Ctr. (United States)


Published in SPIE Proceedings Vol. 6271:
Modeling, Systems Engineering, and Project Management for Astronomy II
Martin J. Cullum; George Z. Angeli, Editor(s)

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