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Proceedings Paper

The Reconciliation Of Scatter Data Obtained With Solar Simulator And Lasers,
Author(s): Clara Asmail
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Paper Abstract

The BRDF of any material may be obtained using either broadband or discrete wavelength sources, eg. solar spectral distribution simulators or lasers. Presently, there exists some discrepancy in the interpreta-tion and comparison of measurements made with these two sources. A reconciliatory methodology is presented in lieu of the current disarray of attempts to correlate scatter information obtained with lasers with that obtained using solar simulators. A technique is offered which is capable of rendering the few BRDF data obtained at discrete laser lines as a viable source for comparison to solar simulators. The solar spectral distribution (at air mass zero) was approximated analytically and used as a weighting function for the spectral BRDF of several generic types of scattering surfaces including white and black diffusers and specular samples; this defines the analytic solar BRDF. By conducting a solar spectral distribution weighting on the BRDF data obtained at various laser wavelengths, the resulting (calculated) solar weighted BRDF

Paper Details

Date Published: 2 January 1990
PDF: 3 pages
Proc. SPIE 1165, Scatter from Optical Components, (2 January 1990); doi: 10.1117/12.962843
Show Author Affiliations
Clara Asmail, National Institute of Standards and Technology (United States)

Published in SPIE Proceedings Vol. 1165:
Scatter from Optical Components
John C. Stover, Editor(s)

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