270 degree half intensity angle LED retrofit light bulb based on planar light source coupling with reflective structure
Yanjian Xiong, Yong Yu, Hongbo Kang, Leung, Stanley Y. Y., Xiang Zhou, Zhang, G. Q.
Published in 2014 11th China International Forum on Solid State Lighting (SSLCHINA) (01.11.2014)
Published in 2014 11th China International Forum on Solid State Lighting (SSLCHINA) (01.11.2014)
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