Measuring broadband bidirectional reflectance distribution function

Hong Song Li*, Sing Choong Foo, K. E. Torrance

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A broadband gonioreflectometer for light scattering measurement is introduced, and a method of broadband bi-direction reflectance distribution function(BRDF) measurement is proposed. The gonioreflectometer incorporates a broadband white light source and a broadband detector with a diffraction grating and linear diode array, obtaining 400-700 nm BRDF measurements with a relative measurement method. The finished instrument is capable of combining wide angular coverage over the incidence/reflection hemisphere, dense sampling of the visible wavelength spectrum, and rapid operation. To prove the usability of the system, measured BRDFs on two samples are reported.

Original languageEnglish
Pages (from-to)593-597
Number of pages5
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume28
Issue number7
Publication statusPublished - Jul 2008

Keywords

  • Bi-direction reflectance distribution function (BRDF)
  • Broadband measurement
  • Optical instrument
  • Realistic image synthesis

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