Design Review Of A Unique Complete Angle Scatter Instrument (CASI)

Daniel R. Cheever; Fredrick M. Cad; Kyle A. Klicker; John C. Stover

doi:10.1117/12.978542

1 January 1987 Design Review Of A Unique Complete Angle Scatter Instrument (CASI)

Daniel R. Cheever, Fredrick M. Cad, Kyle A. Klicker, John C. Stover

Proceedings Volume 0818, Current Developments in Optical Engineering II; (1987) https://doi.org/10.1117/12.978542
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

A useful way to present scatter data is scattered light power density (dPs/dws) normalized by the incident light power and plotted as a function of angle from specular. Nicodemus pointed out that if this quantity is also normalized by the cosine of the angle between the surface normal and the direction of scatter (Os) that the resulting expression was the differential scattered radiance normalized by the incident irradiance[1]. This expression has become known as the bidirectional scattered (reflectance or transmission) distribution function (BSDF, BRDF or BTDF)[2].

Citation Download Citation

Daniel R. Cheever, Fredrick M. Cad, Kyle A. Klicker, and John C. Stover "Design Review Of A Unique Complete Angle Scatter Instrument (CASI)", Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); https://doi.org/10.1117/12.978542

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