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23 June 2006 Practical aspects of image system validation using trans-illumination
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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.
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Andrew T. Cochrane, Garth C. Robins, Gary J. Baker, Raymond M. Bell, Vassilis G. Zarifis, and Bruce J. Herman "Practical aspects of image system validation using trans-illumination", Proc. SPIE 6271, Modeling, Systems Engineering, and Project Management for Astronomy II, 62711D (23 June 2006); https://doi.org/10.1117/12.672738
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