—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.
—Luminance, HDR image processing, coherent
The authors are with the Architectural Engineering Department, Kyung
Hee University, Yongin, Rep. of Korea (e-mail: firstname.lastname@example.org,
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.