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General Information
    • ISSN: 1793-8236 (Online)
    • Abbreviated Title Int. J. Eng. Technol.
    • Frequency:  Quarterly 
    • DOI: 10.7763/IJET
    • Executive Editor: Ms.Yoyo Y. Zhou
    • Abstracting/ Indexing: Chemical Abstracts Services (CAS) EBSCO, Google Scholar, Ulrich Periodicals Directory, Crossref, ProQuest, Index CopernicusEI (INSPEC, IET).
    • E-mail: ijet@vip.163.com
Prof. T. Hikmet Karakoc
Anadolu University, Faculty of Aeronautics and Astronautics, Turkey

IJET 2015 Vol.7(4): 339-342 ISSN: 1793-8236
DOI: 10.7763/IJET.2015.V7.815

The Impact of Coherent Light Sources On Luminance Measurement

Gon Kim, Hong Soo Lim, and Jeong Tai Kim
Abstract—The algorithms and devices used in measuring luminance have a significant effect on the results to be obtained. The two available methods of measuring luminance have shown that luminance of two identical lighting sources can be totally different owing to certain other factors. Consequently, the current paper examined the effect that distance and a coherent light source may have on a target light source in regards to measured luminance. The results indicate that when the distance from the light source is increased on the outdoor, there is a decrease in measured luminance. For the second objective, the results showed that measured luminance increases by about 3% and 2% when the coherent light source is on and oriented towards the point of measurement at 15° and 30° respectively.

Index Terms—Luminance, HDR image processing, coherent light source.

The authors are with the Architectural Engineering Department, Kyung Hee University, Yongin, Rep. of Korea (e-mail: gonkim@khu.ac.kr, hongsoolim@khu.ac.kr, jtkim@khu.ac.kr).


Cite: Gon Kim, Hong Soo Lim, and Jeong Tai Kim, "The Impact of Coherent Light Sources On Luminance Measurement," International Journal of Engineering and Technology vol. 7, no. 4, pp. 339-342, 2015.

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