The Impact of Phosphor Properties on the Light Quality of White LEDs

被引：0
|
作者：
Sommer, Christian [1 ]
机构：
[1] Joanneum Res Forsch Gesell mbH, Mat Light & Opt Technol, Franz Pichler Str 30, A-8160 Weiz, Austria
来源：
LED LIGHTING TECHNOLOGIES - WINNING APPROACHES, LPS 2011 | 2011年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The device performance in terms of light output and quality of the white light critically depends on the appropriate shape and arrangement of the color conversion element within the LED package. One important aspect in the context of white light quality is the highly accurate reproducibility of the desired correlated color temperature among individual LEDs, which for general lighting purposes should be within a 2-step MacAdam ellipse. It is therefore imperative to understand how variations of the extinction coefficient and the quantum efficiency affect the respective color conversion process. Based on an optical ray-tracing study the impact of materials parameters and their mutual interactions on the variations of the color temperature and the angular homogeneity of phosphor converted white LEDs will be discussed.rectangle
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页码：32 / 32
页数：1
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