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Proceedings Paper

Specification Of The Scattering Characteristics Of Surfaces And Systems, For Use In The Analysis Of Stray Light
Author(s): Robert P. Breault
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Paper Abstract

The measurement of the scattering characteristics of coatings and surfaces has not kept pace with the development of the software tools used to analyze stray light in an optical system. The use and importance of such measurements is emphasized by the use of a parametric analysis performed on the Spacelab Two telescope. The basic measurement of the BRDF need not be costly nor time consuming, but it is made clear that the data should be extensive enough to properly define the scattering function, not just a single profile of the function. The current forms of presentation used to define the stray light performance of optical systems are discussed. In most cases it is one of these definitions that is used to set the specification on the performance of a sensor. The definitions are all based on the point source transmittance of the system. When a broad source transmittance is used to define a specification many factors external to the system are involved and these mask the propagation characteristics of the sensor, and therefore make improvements more difficult.

Paper Details

Date Published: 7 September 1979
PDF: 11 pages
Proc. SPIE 0181, Contemporary Optical Systems and Components Specifications, (7 September 1979); doi: 10.1117/12.957354
Show Author Affiliations
Robert P. Breault, University of Arizona (United States)


Published in SPIE Proceedings Vol. 0181:
Contemporary Optical Systems and Components Specifications
Robert E. Fischer, Editor(s)

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