| 基于LED阵列的彩色视觉检测光源色度特性研究 |
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| 引用本文： | 祝振敏,曲兴华,毕超,贾果欣,张福民.基于LED阵列的彩色视觉检测光源色度特性研究[J].物理学报,2012,61(2):20702-020702. |
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| 作者姓名： | 祝振敏 曲兴华 毕超 贾果欣 张福民 |
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| 作者单位： | 天津大学精密测试技术及仪器国家重点实验室, 天津 300072;华东交通大学电气与电子工程学院, 南昌 330013;天津大学精密测试技术及仪器国家重点实验室, 天津 300072;天津大学精密测试技术及仪器国家重点实验室, 天津 300072;天津大学精密测试技术及仪器国家重点实验室, 天津 300072;天津大学精密测试技术及仪器国家重点实验室, 天津 300072 |
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| 基金项目： | 国家自然科学基金(批准号: 50875185)和天津市应用基础及前沿技术重点项目(批准号: 09JCZDJC23600)资助的课题. |
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| 摘 要： | 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.
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| 关 键 词： | 彩色视觉 LED阵列光源 色度学特性 |
| 收稿时间： | 2012-02-27 |
Study on colorimetric properties of LED array sources for color vision application |
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| Zhu Zhen-Min,Qu Xin-Ghu,Bi Chao,Jia Guo-Xin and Zhang fu-Min.Study on colorimetric properties of LED array sources for color vision application[J].Acta Physica Sinica,2012,61(2):20702-020702. |
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| Authors: | Zhu Zhen-Min Qu Xin-Ghu Bi Chao Jia Guo-Xin and Zhang fu-Min |
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| Institution: | State Key Laboratory of Precision Measuring Technology and Instrument, Tianjin University, Tianjin 300072, China; School of Electrical and Electronic Engineering, East China Jiaotong University, Nanchang 33013, China;State Key Laboratory of Precision Measuring Technology and Instrument, Tianjin University, Tianjin 300072, China;State Key Laboratory of Precision Measuring Technology and Instrument, Tianjin University, Tianjin 300072, China;State Key Laboratory of Precision Measuring Technology and Instrument, Tianjin University, Tianjin 300072, China;State Key Laboratory of Precision Measuring Technology and Instrument, Tianjin University, Tianjin 300072, China |
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| Abstract: | 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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