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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 2 — Jan. 19, 2009
  • pp: 723–732

An iterative model of diffuse illumination from bidirectional photometric data

Chung-Hao Tien and Chien-Hsiang Hung  »View Author Affiliations


Optics Express, Vol. 17, Issue 2, pp. 723-732 (2009)
http://dx.doi.org/10.1364/OE.17.000723


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Abstract

This paper presents a methodology for including the photometric raw data sets into the diffuse illumination design process. The method is based on computing the luminance distribution on the outgoing side of diffusing elements from measured bidirectional scattering distribution functions (BSDFs). The model is limited to specimens that create rotationally symmetric scattering distribution. The calculation procedure includes the linear superposition and the correcting feedback. As an application example, the method is verified by a commercially available diffusing sheet illuminated by a 32-inch backlighting module. Close agreement (correlation coefficient = 98.6%) with the experimental measurement confirmed the validity of the proposed procedure.

© 2009 Optical Society of America

OCIS Codes
(120.5240) Instrumentation, measurement, and metrology : Photometry
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.1990) Scattering : Diffusion
(290.1483) Scattering : BSDF, BRDF, and BTDF

ToC Category:
Illumination and nonimaging optics

History
Original Manuscript: October 30, 2008
Revised Manuscript: December 31, 2008
Manuscript Accepted: January 6, 2009
Published: January 8, 2009

Citation
Chung-Hao Tien and Chien-Hsiang Hung, "An iterative model of diffuse illumination from bidirectional photometric data," Opt. Express 17, 723-732 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-2-723


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