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LED背光显示器对不同年龄人视网膜照度、节律效应和蓝光危害的影响

Effect of Retina Illuminance, Circadian Rhythm and Blue Light Hazard of LED Backlight Display on the Human of Different Ages

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摘要

研究了视网膜照度、节律效应和蓝光危害随年龄的变化规律.采用光谱仪测量了4款常见发光二极管背光显示器显示白色和蓝色时的归一化光谱分布, 然后结合不同年龄人眼的晶状体透射谱, 计算了视网膜照度因子、节律因子和蓝光危害能效因子, 得到三者与年龄的变化规律.研究表明: 对于同一发光二极管背光显示器, 视网膜照度因子、节律因子和蓝光危害能效因子均随年龄的增加而显著减小; 同一人眼的视网膜照度因子随显示器类型的变化较小; 对于年轻人, 不同类型显示器的蓝光危害能效因子和节律因子差异明显, 特别是显示蓝色时, 但是, 对于老年人, 不同类型显示器的蓝光危害能效因子和节律因子差异较小.

Abstract

The changes of retinal illuminace, circadian rhythm and blue light hazard with age were studied. The normalized spectral distributions of four common displays with white and blue background were measured with the spectrometer. The retinal illuminance factor, blue light hazard factor and circadian factor were calculated based on the lens spectral transmission of different ages. The relationships between these three factors and age were obtained. It is shown that the above three factors decrease rapidly as the age increases for the same light emitting diode backlight display. The retinal illuminance factor changes little with the type of display for human of the same age. For the younger, The blue light hazard factor and the circadian factor vary greatly with the displays, especially for the blue background. However, for the older, the variations of blue light hazard factor and the circadian factor are small for different displays.

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中图分类号:TN27

DOI:10.3788/gzxb20154404.0417003

基金项目:国家自然基金(No.81170873)、江苏省高校自然科学项目(No.14KJB140001)、江苏高校文化创意协同创新中心项目(No.XYN1 406)、常州工学院重点项目(No.YN1209)和常州现代光电技术研究院项目(No.CZGY003)资助

收稿日期:2014-09-09

修改稿日期:2014-12-06

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饶丰:常州工学院 光电工程学院, 江苏 常州 213002常州现代光电技术研究院, 江苏 常州 213002常州市光电子材料与器件重点实验室, 江苏 常州 213002
朱锡芳:常州工学院 光电工程学院, 江苏 常州 213002
徐安成:常州工学院 光电工程学院, 江苏 常州 213002
褚静:常州工学院 光电工程学院, 江苏 常州 213002
张燕:常州工学院 光电工程学院, 江苏 常州 213002

联系人作者:饶丰(jxsdrf@aliyun.com)

备注:饶丰(1983-), 男, 讲师, 博士, 主要研究方向为LED光色热电及光生物安全特性.

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