1 May 2011 Comprehensive analysis of the diffuse-to-near-normal-viewing reflectance factor of paint films
Author Affiliations +
We present a comprehensive derivation of the so-called diffuse to near-normal-viewing reflectance factor of an architectural paint coating and its measurement with an integrating sphere. We focus our attention to the surface correction terms and consider the case when the surface is rough. We point out limits of the standard formula with the so-called Saunderson corrections commonly used for paint coatings. We provide and discuss a corrected definition of the roughness-dependent "gloss factor" needed to describe specular-component excluded measurements. We show that as the roughness of the surface increases, the specular-excluded reflectance-factor increases, approaching its value with the specular-component included.
© (2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Augusto Garcia-Valenzuela, Augusto Garcia-Valenzuela, Fabio S. A. Cuppo, Fabio S. A. Cuppo, Jose A. Olivares, Jose A. Olivares, Julian M. Galvan-Miyoshi, Julian M. Galvan-Miyoshi, } "Comprehensive analysis of the diffuse-to-near-normal-viewing reflectance factor of paint films," Optical Engineering 50(5), 053602 (1 May 2011). https://doi.org/10.1117/1.3574069 . Submission:

Back to Top