| Autor: |
Zhang, Jain-Hong, Chen, Kuan-Yu, Cheng, Yao-Chien, Wang, Alex |
| Předmět: |
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| Zdroj: |
SID Symposium Digest of Technical Papers; Jun2013, Vol. 44 Issue 1, p1264-1266, 3p |
| Abstrakt: |
LED street lamps have advantages of energy-efficient and low maintenance or long lifetime. Furthermore, single-LED street light systems have the advantages of easy assembly and modularized optics over LED-array ones, but of less degree of design freedom. Thus, only if the heat dissipation and optical constraint are solved, a single-LED street light can be realized. In this study, the uniformity (max. to min. ratio) of 3.9 was achieved under a 6-meter-high illumination and an 18-by-18 m2 area, which was lower/better than that of the LED-array ones of 7. Besides, the freeform lens efficiency of the single-LED optics was as high as 85%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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