| Title |
Analysis of Discomfort Glare by luminous intensity distribution of Marine Indoor Luminaires |
| Authors |
Sang-Hee Cho ; Kun-Yul Kim ; Young-Moon Yu |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2014.28.3.018 |
| Keywords |
Discomfort Glare ; Luminous Intensity Distribution ; cos2θ distribution ; UGR ; Marine Indoor Luminaire |
| Abstract |
In this paper, tried to find out the proper luminous intensity distribution for the cabin with low-level height by analyzing the changing tendency of discomfort glare according to luminous intensity distribution of marine indoor luminaires using Unified Glare Rating(UGR). First, we analyzed UGR of the indoor luminaires in the existing cabin, and then evaluated influence on luminous intensity distributions of marine indoor luminaire. The results showed that cos2θ distribution got almost low UGR results regardless of height and UGR 16.5 in cabin height of 2m. However, Gaussian distribution with the same beam angle showed that UGR results consistently increased by getting lower height and UGR 20.7 in the same height. In conclusion, the cos2θ distribution in consideration of luminous intensity on the direction of observer's eye was appropriate for general cabin indoor luminaires because it decreased UGR in the low-level height. |