Stray Light Analysis And Suppression In Small Angle BRDF/BTDF Measurement

W William Lee; Lawrence M Scherr; Max K Barsh

doi:10.1117/12.939499

3 June 1987 Stray Light Analysis And Suppression In Small Angle BRDF/BTDF Measurement

W William Lee, Lawrence M Scherr, Max K Barsh

Proceedings Volume 0675, Stray Radiation V; (1987) https://doi.org/10.1117/12.939499
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

Stray light from optical components in BRDF/BTDF measuring instruments is investigated regarding small angle limitations. Angular limits and associated features in the instrument function have been identified. The angular characteristics of the focused laser beam which is specularly reflected/transmitted by the sample are derived in terms of the Gaussian distribution. Measurements of BRDF and instrument function are consistent with the analysis.

Citation Download Citation

W William Lee, Lawrence M Scherr, and Max K Barsh "Stray Light Analysis And Suppression In Small Angle BRDF/BTDF Measurement", Proc. SPIE 0675, Stray Radiation V, (3 June 1987); https://doi.org/10.1117/12.939499

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