| 基于LED的光谱可调光源结构研究 |
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| 引用本文： | 贾宁,蒋水秀.基于LED的光谱可调光源结构研究[J].光学仪器,2012,34(5):70-74. |
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| 作者姓名： | 贾宁 蒋水秀 |
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| 作者单位： | 贾宁:杭州职业技术学院 信息电子系,浙江 杭州310018
蒋水秀:杭州科技职业技术学院 机电工程学院,浙江 杭州311402
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| 基金项目： | 浙江省教育厅科研项目(Y201224895);杭州职业技术学院科研项目(ky201229) |
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| 摘 要： | 介绍了一个由大量LED组合而成的光谱可调光源,通过不同LED的组合产生不同光谱分布,可以模拟各种光源。该光源主要由LED屏体、光谱匹配模块以及LED控制驱动模块构成。LED屏体由2 304个窄带LED组成,通过LED数据分配卡将接收到的显示数据进行分配,并驱动屏体上的LED,以PWM的方式精确控制每一个LED的电流,实现256级及以上灰度等级显示。整个系统经初步调试,已能模拟部分光谱。该光源将具有广泛的应用前景。
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| 关 键 词： | 照明 发光二极管(LED) 光谱功率分布 可调光源 |
| 收稿时间： | 2012/4/12 |
Research on the structure of LED-based spectral tunable light source |
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| JIA Ning and JIANG Shuixiu.Research on the structure of LED-based spectral tunable light source[J].Optical Instruments,2012,34(5):70-74. |
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| Authors: | JIA Ning and JIANG Shuixiu |
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| Affiliation: | 1.Department of Information and Electronic,Hangzhou Vocational and Technical College,Hangzhou 310018,China; 2.School of Mechanical and Electrical Engineering,Hangzhou Polytechnic,Hangzhou 311402,China) |
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| Abstract: | A spectral tunable light emitting diode (LED) light source composed of a multitude of LEDs is designed. It can produce different spectral distributions with the combination of different LEDs to simulate various light sources. The light source is mainly composed of the LED screen body, the spectral matching module as well as the LED control driver module. The LED screen consists of 2 304 narrowband LEDs. The display data received was allocated via LED data distribution card to drive LEDs on the screen body, precisely control the current of each LED by PWM manner, to realize 256 and above gray scale display. After the preliminary debugging, the entire system has been installed to simulate some target spectrum. The application prospect of the light source is very promising. |
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| Keywords: | lighting light-emitting diodes(LED) spectral power distribution tunable light source |
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