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高显色指数LED光谱配比与色度参数的关系
Authors
伊晓燕
周天亮
+6 more
李晋闽
李燕
杨华
杨宇铭
王军喜
郑怀文
Publication date
15 October 2019
Publisher
Abstract
为了提高LED光源的显色性一般需要改变不同的荧光粉成分,理论上利用不同峰值的荧光粉配比可以实现类似的色温和显色指数。我们采用典型的蓝光LED、3种不同峰值波长的绿色/黄绿色荧光材料与典型红色荧光材料进行5种基本光谱的组合,对每种组合的色度学参数包括色坐标、相关色温、显色指数等进行了仿真计算,并对相近色温下的技术方案和显色性的关系进行了统计和分析。结果表明,在这一技术方案下色温和显色指数在可以较好地确定白光LED光谱的整体形态,同时更高的显色指数可以更好地约束所能采用的配比。国家重点研发计划(批准号:2017YFB0403705
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Last time updated on 20/11/2020