从发光二极管主波长的定义出发,比较分析了计算发光二极管主波长的3种方法,并提出了一种优化的计算方法。先将色品图划分为10个区域,再结合线性插值运算,可以减少运算次数、提高寻找速度,简化了求主波长的计算过程,同时使主波长计算结果的精确度优于0.1 nm。A novel algorithm to determine the dominant wavelength of LED is proposed based on the definition of dominant wavelength and the comparisons of three conventional calculation methods.To realize this algorithm,the CIE1931-xy Chromaticity Diagram is divided into 10 different regions within the wavelength range from 380.0?nm to 780.0?nm with a resolution of 1.0?nm,then the linear interpolation is implemented to locate the dominant wavelength with a resolution as precise as 0.1?nm.This algorithm not only very facilitates the calculation speed to determine the dominant wavelength of LED,but also increases the resolution precision.国家863计划“半导体照明工程”重大项目(2006AA03A175);; 福建省重点科技项目(2006H0092);; 厦门大学科技创新项目(XDKJCX20051011
