| 提高汽车背景光大面积照明亮度一致性的光源布置 |
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| 引用本文： | 符欲梅,张巧娥,王富强,昝昕武,袁东.提高汽车背景光大面积照明亮度一致性的光源布置[J].测控技术,2011,30(12):7-11. |
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| 作者姓名： | 符欲梅 张巧娥 王富强 昝昕武 袁东 |
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| 作者单位： | 1. 重庆大学光电工程学院光电技术及系统教育部重点实验室,重庆,400044
2. 重庆长安汽车工程研究总院动力研究院发动机试验检测所,重庆,400023 |
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| 基金项目： | 重庆市自然科学基金资助项目（CSTC2009BB6037） |
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| 摘 要： | 汽车背景光系统广泛应用LED光源进行照明,单颗LED近似为点光源,在较大面积照明的情况下,LED光源的布置方式在很大程度上影响了亮度的一致性.研究了LED作为背光源的照明特点,分析了LED背光源的布置对汽车背景光亮度一致性的影响,提出一种通过优化光源布置确定相邻LED间距提高汽车背景光较大面积照明亮度一致性的方法.该方...
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| 关 键 词： | 汽车背景光 LED 布置 优化设计 亮度一致性 大面积照明 |
Optimal Method of LED Light Source Alignment to Improve the Brightness Uniformity of a Large Area Lighting in Automobile Backlight System |
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| FU Yu-mei,ZHANG Qiao-e,WANG Fu-qiang,ZAN Xin-wu,YUAN Dong.Optimal Method of LED Light Source Alignment to Improve the Brightness Uniformity of a Large Area Lighting in Automobile Backlight System[J].Measurement & Control Technology,2011,30(12):7-11. |
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| Authors: | FU Yu-mei ZHANG Qiao-e WANG Fu-qiang ZAN Xin-wu YUAN Dong |
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| Affiliation: | FU Yu-mei1,ZHANG Qiao-e1,WANG Fu-qiang2,ZAN Xin-wu1,YUAN Dong1 (1.Key Laboratory of College of Opto-Electronic Engineering,Chongqing University,Optoelectronic Technology & Systems,Ministry of Education,Chongqing 400044,China,2.The Engine Test Detection Institute,Power Research Institute,Chongqing Chang'an Automobile Engineering Research Institute,Chongqing 400023,China) |
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| Abstract: | LED is widely applied to the automobile backlight system.A single LED is approximately taken as a point light source.In the large area lighting,LED alignment influences the uniformity of brightness heavily.The characteristic of LED backlight is studied,then the effect of LED alignment on the brightness uniformity of automobile backlight system is analyzed.The LEDs' alignment is mainly studied and a method to improve the uniformity of brightness in an automobile dashboard backlights system is presented.Based on this method,the distance of LEDs is optimized and the alignment of LED array with an optimal distance is calculated.So the amount of LEDs is optimal and the light effect of single LED is good.This method is applied successfully in the part design of backlight system.Result shows that this method is effective. |
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| Keywords: | automobile backlight LED alignment optimal design brightness uniformity large area lighting |
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