Paper
18 December 2019 The total luminous flux measurement of high-power LEDs
Author Affiliations +
Abstract
The total luminous flux is one of the most important characteristics of LEDs. The total luminous flux measurement of traditional LEDs with low power (0.05W@20mA), low heat and single package must conform to the specifications of CIE 127: 2007 Measurement of LEDs. Compared to traditional low-power LEDs, the latest LEDs have higher power (1W@350mA), higher heat and exhibit more complex packages. Because of their own characteristics, high-power LEDs have put forward some new measurement requirements for standard light source, heat dissipation structure, special fixture and integrating sphere. Therefore, a new type of 2π standard light source has been designed and used for the total luminous flux calibration of high-power LEDs.
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Tiecheng Li, Fangsheng Lin, Biyong Huang, Muyao Ji, Leibing Shi, Ming Xia, and Lei Lai "The total luminous flux measurement of high-power LEDs", Proc. SPIE 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, 113340M (18 December 2019); https://doi.org/10.1117/12.2543169
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KEYWORDS
Light emitting diodes

Integrating spheres

Light sources

Calibration

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