45°/0° Bidirectional Reflectance Distribution Function Standard Development

P. Yvonne Barnes; Jack J. Hsia

doi:10.1117/12.962846

2 January 1990 45°/0° Bidirectional Reflectance Distribution Function Standard Development

P. Yvonne Barnes, Jack J. Hsia

Proceedings Volume 1165, Scatter from Optical Components; (1990) https://doi.org/10.1117/12.962846
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

Polytetrafluoroethylene (PTFE), is a white fluoropolymer resin that can be represented by the chemical expression [CF2-CF2]fl. These resins are internationally used in the field of diffuse reflectance spectrophotometry. Many applications, such as 450/0° Bidirectional Reflectance Distribution Function (BRDF) standards, are dependent on a specialized method of sample preparation. An experimental method has been developed which includes a technique for transforming aggregates of PTFE resins into a fine high quality aerated powder. This paper documents our progress in the characterization of the properties of pressed PTFE powders for potential use in BRDF standards developement: selecting PTFE resins, pulverizing PTFE resins, pressing PTFE powders, and measuring the BRDF's of samples with different surface conditions.

Citation Download Citation

P. Yvonne Barnes and Jack J. Hsia "45°/0° Bidirectional Reflectance Distribution Function Standard Development", Proc. SPIE 1165, Scatter from Optical Components, (2 January 1990); https://doi.org/10.1117/12.962846

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