CAJ | 학술논문

光视效能（ LER）是衡量光谱的重要性能指标，也直接决定了白光LED的理论光效。提出了在一定色温下，通过CIE色度系统计算得到白光LED光谱功率分布的一种简易方法，并由此探讨了LER随目标色温和光谱初始模型参数的变化趋势，为高光效的LED光谱优化设计指明了方向。
광시효능（ LER）시형량광보적중요성능지표，야직접결정료백광LED적이론광효。제출료재일정색온하，통과CIE색도계통계산득도백광LED광보공솔분포적일충간역방법，병유차탐토료LER수목표색온화광보초시모형삼수적변화추세，위고광효적LED광보우화설계지명료방향。
Luminous efficacy of radiation ( LER) is a vital property of a spectrum , and directly determines the theoretical luminous efficacy of white LEDs .This paper proposes an approach to calculate the spectral power distribution of white LEDs at a certain CCT in CIE colorimetric system , and discusses the trend of LER changing with target CCTs and parameters of primary spectral models .It provides a way to the spectrum optimization of high-efficiency LEDs.