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彩色视觉成像是基于色度学理论的三刺激值法, 而光源的色度学特性是彩色成像的关键因素, 因此本文以色度学理论为基础, 计算并分析了用于彩色视觉检测的LED阵列光源的色度学特性, 并通过于标准D65光源进行对比, 研究了LED阵列光源的相关色温调节原理、范围, 以及白场平衡时的色度坐标、相关色温等. LED阵列光源具有相当宽泛的相关色温调节范围, 可调制出的颜色丰富, 色彩的表现能力更强, 色彩饱和度更高, 白场平衡R:G:B=254:237:90时的色度坐标、相关色温甚至比人工D65光源更加接近于白场的标准色度, 其颜色复现能力达到视觉允许的较优颜色复现效果. 因此LED阵列光源的色度学特性更加适用于彩色视觉检测.Color vision is based on a three-color colorimeter of colorimetric principle, and the colorimetric properties of illumination is the key factor for color imaging. Therefore based on the principle of colorimetry, in this paper we analyse and calculate the colorimetric properties of LED array sources for color vision application. By comparison with the standard D65 light source, the adjustment principle and range of correlated color temperature are studied for LED array sources. Chromaticity coordinates and relevant color temperature of white balance are also studied. The LED array source has a large range for adjusting the correlated color temperature and has a better ability of color display. Chromaticity coordinates and relevant color temperature of white balance R:G:B=254:237:90 are closer to those of the standard chromaticity. The ability of color reproduction reaches a better result of color reproduction. Therefore, the colorimetric properties of LED array sources are more appropriate for color vision application.
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Keywords:
- color vision /
- LED array sources /
- colorimetric properties
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[1] Basavaraj S A, Dayanand G S 2010 Int. J. Food Eng. 6 1
[2] Manickavasagan A, Sathya G, Jayas D S 2008 Comput. Electron. Agr. 63 237
[3] Vilbett B, José M A, Christopher B 2006 J. Food Eng. 77 776
[4] Fujian D, Yud-Ren C, Kuanglin C, Moon S K 2006 Appl. Optics 45 3516
[5] Zhenmin Z, Xinghua Q, Guoxin J 2011 J. Mod. Opt. doi: 10.1080/09500340.2011.572194
[6] Zhu Z M, Qu X H, Liang H Y, Jia G X 2011 Spectrosc. Spectra. Anal. (in Chinese) [祝振敏, 曲兴华, 梁海昱, 贾果欣 2011 光谱学与光谱分析 31 1025]
[7] Zhu Z M, Qu X H, Liang H Y, Jia G X 2011 Acta Opt. Sin. 31 115001 (in Chinese) [祝振敏, 曲兴华, 梁海昱, 贾果欣 2011 光学学报 31 115001]
[8] Li S W, Xie P H, Liu W Q, Si F Q, Li A, Peng F M 2008 Acta Phys. Sin. 57 1963 (in Chinese) [李素文, 谢品华, 刘文清, 司福祺, 李昂, 彭夫敏 2008 57 1963]
[9] Zhen-min Z, Xing-hua Q, Guo-xin J 2011 J. Disp. Technol. 7 84
[10] Zhao X, Fang Z L, Song L P, Mu G G 2007 Acta Photo. Sin. 36 355 (in Chinese) [赵星, 方志良, 宋丽培, 母国光 2007 光子学报 36 355]
[11] Zhao X, Fang Z L, Mu G G 2007 Acta Phys. Sin. 56 2537 (in Chinese) [赵星, 方志良, 宋丽培, 母国光 2007 56 2537]
[12] Song G B, Peng T J,Wan P, Li BW2002 Acta Phys. Sin. 51 1575 (in Chinese) [宋功保, 彭同江, 万朴, 李博文 2002 51 1575]
[13] Shi L N, Pan Y J, Zhang J, Wei W, Huang S L 2010 Acta Opt. Sin. 30 531 (in Chinese) [史玲娜, 潘英俊, 张洁、韦玮、黄尚廉 2010 光学学报 30 531]
[14] Cheng D A, Shen L, Zhang J Y, Cui Y Y 2007 Acta Phys. Sin. 56 6340 (in Chinese) [陈定安, 沈里, 张家雨, 崔一平 2007 56 6340]
[15] King T L, Susan B, Roderick L S, Paul H D,William S Y, Dermot D 2004 Talanta 63 167
[16] Fryc I, Brown S W, Eppeldauer G P, Ohno Y 2004 Forth International Conference on Solid State Lighting, Denver, SPIE, August 3–6, 2004 p150
[17] Fryc I, Brown S W, Eppeldauer G P, Ohno Y 2004 Opt. Eng. 44 111309
[18] Brown S W, Santana C, Eppeldauer G P 2002 J. Res. Natl. Inst. Stan. 107 363
[19] Mark W, Charles A B, Jan P A, Eric W 1996 IEEE T. Image Process. 5 507
[20] Dennis C, Haiyan O, Carsten D H, Paul M P, Dan F Opt. Express 17 17293
[21] Jing Q C, Jiao S L 1979 Colourometry (Beijing: Science Press) p92,229,252,291 (in Chinese) [荆其诚, 焦书兰 1979 色度学 (北京: 科学出版社) 第92, 229, 252, 291页]
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