| Title |
A Literature Analysis of User Acceptance of Unified Glare Rating of LED Lighting in Office |
| Authors |
이수정(Lee, Su-Jung) ; 윤혜경(Yoon, Hea-Kyung) |
| DOI |
https://doi.org/10.5659/JAIK.2020.36.11.257 |
| Keywords |
LED Lighting; Unified Glare Rating; Discomfort Glare; Office Spaces; User Acceptance |
| Abstract |
This study aims to propose the proper Unified Glare Rating (UGR) levels of light-emitting diodes (LED) lighting in office spaces. It would
be the basis data for the development of LED lighting for them. A literature review was investigated regarding the effects of background
luminance, luminance, solid angle, and position index on office users’ discomfort glare for fluorescent lighting and LED lighting in office
spaces. The recommended UGR for the spaces is 19 or below and it was found that lighting that causes discomfort glare is located within
the user’s field of view or in the line of sight. Discomfort glare within field of view was categorized as ceiling lighting and discomfort
glare in the line of sight was categorized as wall lighting. In the case of ceiling lighting, discomfort glare of UGR≤19 resulted for
fluorescent lighting with luminance of 4000 cd/㎡ and LED lighting with luminance of 2800 cd/㎡. For wall lighting, discomfort glare of
UGR≤19 resulted for fluorescent lighting with luminance of 2844 cd/㎡ and LED lighting with luminance of 1800 cd/㎡. The discomfort
glares of office space ceiling and wall lightings were analyzed and found to be greater for LED lighting than for fluorescent lighting.
Therefore, discomfort glare of UGR≤16 needs to be considered for LED lighting in office spaces. |