@inproceedings{aeb39ba297014fb4bbc7012119865d6d,
title = "Quasi-lambertian radiative transfer: Exact analytic solutions",
abstract = "The evaluation of radiative exchange among quasi-lambertian surfaces has been deemed the domain of raytrace simulations (quasi-lambertian referring to flux distributions that are uniform spatially but within a numerical aperture NA less than unity). The familiar view factors for fully-lambertian surfaces are not valid in this domain. Analytic, physically-transparent solutions are derived for radiation transfer between quasi-lambertian surfaces - solutions that also obviate the need for case-specific time-intensive simulation methods. A generalized reciprocity relation is shown to follow in analogy to the reciprocity theorem for fully-lambertian flux exchange. Representative results of flux maps and flux transfer efficiency for several geometries of practical interest are presented to illustrate the principal features.",
author = "Avi Braun and Gordon, {Jeffrey M.}",
year = "2010",
month = oct,
day = "22",
doi = "10.1117/12.858818",
language = "English",
isbn = "9780819482815",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Nonimaging Optics",
note = "Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII ; Conference date: 01-08-2010 Through 04-08-2010",
}