| Title |
Reflector Design for LED Pedestrian Lighting Using Indirect Reflectance Type |
| Authors |
Sung-Gi Chae ; Dong-Hwan Jung ; Yoon-Chul Lee |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2012.26.4.006 |
| Keywords |
Pedestrian Lighting ; LED Lighting ; Indirect ; Reflector ; LightTools |
| Abstract |
In this paper, we took an indirect reflectance type that irradiates light from an LED module, which reflects light from a reflector onto the road. This LED pedestrian lighting design produces minimal glare from a relatively simple structure. Using LightTools 7.2, we conducted a study on the varying shape and curvature of the reflector. In order to further investigate this data, we researched the ratio of the DLOR and ULOR, the average illuminance, and the uniformity of the illumination. Based on this research, we selected optimum conditions to realize the actual LED pedestrian lighting using RELUX software. We found the average illuminance value to be 22[1x] and the illuminance uniformity ratio to be 0.23, which met the criteria of the proposed standards set in KS C 7658. In addition, it also satisfied the criteria of the standards set in KS A 3701 by having TI (Threshold Increment) at 7[%]. |