作者：陈塬1,2, 张文明1
作者单位：1. 中国科学院光电技术研究所, 四川 成都 610209;
2. 中国科学院研究生院, 北京 100039
关键词：格拉曼斯混光原理; 三原色; 黑体轨迹; 色温; 亮度
摘要：
根据实际应用的需求,从格拉斯曼颜色混合定律出发,给出了一种基于混光原理匹配黑体轨迹上色温的算法。该算法已知黑体轨迹上目标色温的色温值和色品坐标,计算出所需红、绿、蓝三原色的亮度,利用该方法可以混合出任意色温的光,实现对黑体轨迹色温的匹配。通过对几种典型色温值进行理论计算以及对可能产生的误差源进行分析,该算法计算精度较高,计算速度较快,在可调标准色温光源的设计中作为理论基础能够很好的满足色温应用的要求。
Mixing arithmetic matching for color temperature on blackbody track
CHEN Yuan1,2, ZHANG Wen-ming1
1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100039, China
Abstract: From a point view of practical application, the authors give a mixing arithmetic matching for color temperature on blackbody track based on Glassman Law. In order to achieve the target color temperature and its color point, this arithmetic is used to calculate the luminance of red, green, and blue primitive colors. Using this method could produce any color of light,and could match the blackbody color. After calculating some typical color temperature and analyzing the possible error sources, it was found that this arithmetic could provide a high precision, quick compute speed way. When it was used as the basic theory in the design of the adjusted color temperature standard light source processing, it could fulfill its duty perfectly.
Keywords: Glassman law; Three primitive colors; Blackbody track; Color temperature; Luminance
2010, 36(1): 32-34 收稿日期: 2009-4-3;收到修改稿日期: 2009-6-8
基金项目:
作者简介: 陈塬(1985-),男,四川泸州市人,硕士研究生,专业方向为色温光源的研究。
参考文献
[1] 金伟其,胡威捷.辐射度光度与色度及其测量[M].北京:北京理工大学出版社,2005.
[2] 代彩红,于家琳.光源相关色温计算方法的讨论[J].计量学报,2000,21(3):183-188.
[3] 张 浩,徐海松.光源相关色温算法的比较研究[J].光学仪器,2006,28(1):54-58.
[4] 邢 廷,赵田冬.相关色温计算的一种改进算法[J].浙江大学学报:自然科学版,1997,31(5):682-687.
[5] 荆其诚,焦书兰,喻柏林,等.色度学[M].北京:科学出版社,1979.
[6] Zukauskas A, Vaicekauskas R, Ivanauskas F, et al. Quadrichromatic white solid-state lamp with digital feedback [C]//Proc. of SPIE,2004:5 187.
[7] Deurenberg P,Hoelen C,Meurs J. Achieving color point stability in RGB multi-chip LED modules using various color control loops [C]//SPIE Bellingham,2005.
[8] Robinson S,Ashdown I. Polychromatic optical feedback control, stability, and dimming[C]//Proc. of SPIE,2006.
[9] Takeuchi H.利用RGB荧光灯控制色温的灯光系统[J].裘寇村,陈秀琼译.国际广播电视技术,1996(2):45-51.
