The Reconciliation Of Scatter Data Obtained With Solar Simulator And Lasers,

Clara Asmail

doi:10.1117/12.962843

2 January 1990 The Reconciliation Of Scatter Data Obtained With Solar Simulator And Lasers,

Clara Asmail

Proceedings Volume 1165, Scatter from Optical Components; (1990) https://doi.org/10.1117/12.962843
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

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

Citation Download Citation

Clara Asmail "The Reconciliation Of Scatter Data Obtained With Solar Simulator And Lasers,", Proc. SPIE 1165, Scatter from Optical Components, (2 January 1990); https://doi.org/10.1117/12.962843

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