| Title |
A Study of Discomfort and Fatigue Caused by Surface Colors in Regards to Changes in Illuminance Levels |
| Authors |
Jin-Sook Lee ; Ji-Young Park ; Chan-Ung Jung |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2017.31.6.011 |
| Keywords |
System Lighting ; Discomfort Glare ; Fatigue ; Upon Changes in Illuminance Levels ; Evaluation Index |
| Abstract |
Previous lighting methods featured dynamic changes only when turning lighting devices on and off, and glares causing discomfort were controlled based on the brightness of the light source and the solid angle at the time of turning on the light. Current system lighting, however, is projected in multiple forms originating from the spatial action, and there are no proposed methods of controlling discomfort glares in response to dynamic changes. This study evaluated discomfort glared and fatigue caused by the glare, When directly looking at, the surface color due to the change in the illuminance of the lighting. The results are as follows: When illuminance changes, glares causing discomfort and fatigue were found to increase as the ratio of brightness and surface reflection rate increased. In some extreme cases, the glares were found to be “intolerable,” and fatigue rose to “warning” and “danger” levels. Therefore, there is need for the requirement for adequate design based on permitted ranges when designing lighting system using illuminance changes. Further research should become more complex, dealing with the relationship among glare, fatigue, area of lighting, user location variance, and background illuminance. |