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	Study on chroma balance based on grating spectrometer for LED (EI CONFERENCE)
	Sun W.-J. ; Wang S.-Y. ; Yin Y.-Z. ; Rong X.-W. ; Meng Z.
	2008
会议名称	Light-Emitting Diode Materials and Devices II, November 12, 2007 - November 14, 2007
会议地点	Beijing, China
关键词	A standard white light compounding algorithm based on combination of choma coordinates acquisition system with computer working current control system is presented for three-color LED. The chroma coordinates acquisition system consist of grating spectrometer and integrating sphere. The computer adjust and control the working current of three-color LED then achieved chroma coordinates error between the compounded white light and standard white light D65 until the chroma coordinates is less than the threshold beforehand set by this technique. The compounded white light meet the chroma error demanded that is able to be changed at the same time the chroma coordinates acquisition system and the working current control system are eliminated. The proposed algorithm the offset of central wavelength and the change of chroma coordinates due to working current variety for LEDs. Experimental results show that the proposed algorithm achieved lesser chroma error uv=0.001 relative to standard white light D65 enhanced chroma uniformity of illumination field.
收录类别	EI
内容类型	会议论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/33929]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Sun W.-J.,Wang S.-Y.,Yin Y.-Z.,et al. Study on chroma balance based on grating spectrometer for LED (EI CONFERENCE)[C]. 见:Light-Emitting Diode Materials and Devices II, November 12, 2007 - November 14, 2007. Beijing, China.

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