Laser driven white light source for BRDF measurement

Mekbib Wubishet Amdemeskel, Anders Thorseth, Carsten Dam-Hansen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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In this paper, we will present a setup with laser driven light source (LDLS) for measuring a 2D bidirectional reflectance distribution function (BRDF). We have carried out measurements to acquire the BRDF of different samples based on our setup: which consists of a new laser driven broadband light source (UV-VIS-NIR), spectroradiometer and sample holder stepper motor in a dark UV-protected environment. Here, we introduced a special kind of light source which has a bright, stable, broad spectral range and well collimated light output to give a very good angular resolution. The experimental results show how stable and reliable is our light source in terms of spectral power distribution, and in BRDF measurement. Furthermore we have shown that we are able to get a well collimated beam and higher power output using set of off-axis parabolic mirrors
Original languageEnglish
Title of host publicationProceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017
PublisherCIE - International Commission on Illumination
Publication date2017
ISBN (Print)978-3-901906-95-4
Publication statusPublished - 2017
EventCIE Midterm Meeting 2017 - Ramada Plaza Jeju Hotel, Jeju, Korea, Republic of
Duration: 23 Oct 201725 Oct 2017


ConferenceCIE Midterm Meeting 2017
LocationRamada Plaza Jeju Hotel
Country/TerritoryKorea, Republic of


  • BRDF
  • Broadband
  • Spectroradiometer
  • Specular
  • Diffuse
  • Glossy
  • Radiant Flux


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