高压、高亮度 LED 的驱动

由于现在各国都在不断减少白炽灯泡的使用而且各大公司也都意识到转向使用一些替代照明方法可以实现节能,而这其中发光二极管（LED）和紧凑型荧光灯（CFL）便是主要的选择,因此对于低成本、低环境影响照明解决方案的需求比以往任何时候都要强烈。     

设计美观宜人，别具风格的车内发光二极管照明装置

为汽车设计车内照明装置，必须尽可能提高光线的素质，令灯光悦目宜人。本文以具体的应用为例，探讨若干经证实高效的车内发光二极管照明装置使用技术和方法，同时也提出一些差劣设计的缺点。恰当的发光二极管照明设计能够开拓新风格，为汽车使用者带来舒适、度身订造的选择，从而加强使用发光二极管作为车内照明的趋势。     

下一代固体发光技术

有机发光二极管（OLED）和无机发光二极管（LED）因其高效率、长寿命以及能够实现非传统光源所能及的创造性发光设计内容的特有形状因素,因此具备对照明产业的革命性潜力。文章是对能够用于固体发光（着重是OLED）的有机和无机发光二极管技术的总览。     

如何为多媒体显示屏幕提供高性能的照明管理

高集成度的照明管理单元内置多个发光二极管驱动器(见图1),能以极高的效率驱动新一代蜂窝式手机彩屏的白色及红绿蓝(RGB)发光二极管,有助于节省能源,延长电池寿命。由于3G手机须采用彩色显示屏幕及发光技术,例如翻盖照明、彩色指示灯、相机闪光灯、辅助照明、以及环境光感测功能等,因此有必要用更先进的照明管理解决方案以满足照明方面的种种要求。为手机提供背光的白色发光二极管目前几乎所有蜂窝式手机都有一个或两个彩色显示屏幕。虽然它们要求的背光技术水平会因所需白色发光二极管数目的不同而各异,但目前大部分手机的主显示屏幕都采…     

高亮度发光二极管及其在照明领域中的应用

介绍了高亮度发光二极管(LED)的研究现状,分析了LED作为照明光源的特点,并对LED在照明领域中的应用进行了展望.     

ASMT-Mx60：0.5W白光LED

Avago推出Moonstone系列新0．5W冷白光和暖白光发光二极管。ASMT-Mx60LED为固态照明应用设计工程师提供了稳固可靠的封装,带来高亮度照明输出并且容易组装。ASMT-Mx60适合需要超高亮度LED,例如电子标志背光、零售显示屏、商用照明以及重点照明等应用,这些冷白光和暖白光LED还可以使用在如工作灯和阅读灯等特殊照明应用。     

利用双基色发光二极管研究白光发光二极管

介绍了白光发光二极管作为照明光源的发展优势。详细阐述了利用双基色发光二极管制造白光发光二极管的发光原理，并讨论了制作过程，包括选择性腐蚀和Bonding技术的运用。最后对器件性能作出评价。     

未来照明发光二极管

据莫斯科国立罗蒙诺索夫大学阿．艾．尤诺维奇报导，七年以前，俄刊《照明技术》杂志公布了作者关于新一代氮化镓及其固溶体高效发光二极管性质评述的文章。文中详细介绍了发光二极管在不同照明技术领域广泛应用的前景。那时觉得未来用发光二极管取代广用白炽     

高亮度发光二极管的应用前景

随着发光二极管发光效能的不断提高,发光二极管无疑为近几年来最受重视的光源之一.一方面凭借其轻、薄、短、小的特性,另一方面借助其封装类型的耐摔、耐震及特殊的发光光形,发光二极管的确给了人们一个很不一样的光源选择,成为各国照明厂商在照明方面发展的重点.     

21世纪的白色发光二极管

白色发光二极管具有全固体、无污染、寿命长等特点,是一种高可靠光源。如果利用这种发光二极管制成照明用具,那么它的亮度将是普通白炽灯的3倍,耗能仅为普通白炽灯的1/10,而寿命却是普通白炽灯的100倍以上。白光发光二极管将彻底改变人类的照明历史,是21世纪最有发展前景的照明光源。     

浸没式光刻照明系统的照明模式变换器

研究了NA1.35浸没式光刻照明系统中照明模式变换模块的设计和测试。采用衍射光学元件实现包括传统照明、二极照明、四极照明的照明模式变换系统的设计和分析。给出了不同照明模式的衍射光学元件的设计结果,并对设计结果进行了模拟分析和实验分析,证明了设计的可行性。研究结果表明:当输入光场被分割的阵列数为2020单元时,二极和四极照明模式下衍射元件台阶数为32,传统照明模式下台阶数为128的情况下,衍射光学元件作为照明模式变换器的均匀性及衍射效率都能够满足设计要求。从原理、实验上验证衍射光学元件激光模式变换器设计的正确性及可行性。研究结果能够应用于浸没式光刻照明系统中照明模式变换结构中,具有一定的理论价值和工程意义。     

The evaluation for the chromatic characteristics of LED module under electrical and thermal coupling analysis

Towards energy-saving, high efficiency, and low pollution, the lighting of light-emitting diode systems, the solid state lighting, is important for the future of green energy technology industry. It becomes the replacement of traditional lighting, such as light bulbs and compact fluorescent lamps. Because of the characteristics of semiconductor, the electrical property of light-emitting diodes is varying with operating temperature. Then, the alternation of electrical property changes the heating power and operating temperature of light-emitting diodes. This is a mutual interaction between electrical property and operating temperature until they reach the steady state. The final current and temperature distributions decide the optical and chromatic characteristics of light-emitting diodes. Besides increasing the luminous efficiency, effectively controlling electricity and thermal characteristics in the design of light-emitting diode lighting products is the key point to achieve the demand of light and color. In this paper, we designed experiments and calculation algorithm to do the temperature distribution simulation of light-emitting diode module. Then, we obtained the analysis technology to predict the reliably optical and chromatic characteristics of light-emitting diode module in practical use.     

Lighting the way to a low-energy future

The technology of lighting has altered little since the early 20th Century. In this paper, the author describes advances in solid-state technology that could herald a revolution in the way buildings are lit, with the humble light-emitting diode (LED) making the application leap from power-on indicator to mainstream light source     

Approach for fabricating healthy OLED light sources with visual quality and energy-saving character

Healthy light has attracted increasing attentions due to recognizing the hazards that modern light has caused to physiology, human eyes, ecology, and artworks. Hence, studies concentrated on the design and fabrication of hazard-free lighting sources has been significantly increasing. However, issues on light quality and energy-saving are of great importance. Here, we present an original approach to enable the generation of human-eye-friendly and melatonin suppression-less healthy light with high light-quality and energy-saving characters. Taking a three-band organic light-emitting diode (OLED) for example, the suppression threat can be reduced by 83% as the color temperature of the resulting light is decreased from 6000 to 2000 K, while slightly sacrificing its theoretical efficacy limit from 260 to 245 lm/W and spectrum resemblance index (SRI) from 90 to 83. Notably, a comparatively more healthy light can be obtained by incorporating lesser deep-blue and -red emissions even at the same color temperature. The same approach can also apply to other lighting technologies such as light-emitting diode.     

OLED应用于照明的发展现状及前景

有机发光二极管(OLED)具有传统照明方式所不具有的固态照明的特点,同时由于自身制作特点还具有LED所不具备的特点,OLED照明将赋予照明光源一些新的功能和涵义.在总结OLED照明研发现状的基础上,探讨了目前OLED照明尚未解决的主要技术问题,并概括分析了解决这些问题的方法.     

红外/白光混合补光系统在智能交通中的应用研究

随着国内平安城市项目的不断完善,完备的补光系统对于智能交通也就显得越来越重要。首先,阐述了在智能交通中补光系统的作用、分类及现有补光系统的优缺点;其后针对在补光中存在的眩目和过曝这两个问题,设计了一款红外和白光混合排列阵列式发光二极管防眩目补光系统,完成了其硬件部分和基于现场可编程门阵列（Field Programmable Gate Array,FPGA）自适应算法的软件部分,并对该系统进行了实际测试。测试结果表明:补光效果优于白光常亮灯,且眩目感显著降低;车牌图像二值化分布均匀,该补光系统可有效解决车牌过曝问题。     

Temperature‐controlled light‐emitting diode lamp for photovoltaic rural applications

In recent years, interest in light‐emitting diode (LED) lighting has been growing because of its high efficacy, lifetime and ruggedness. This paper proposes a better adaptation of LED lamps to the technical requirements of photovoltaic lighting domestic systems, whose main quality criteria are reliability and that behave as voltage power supplies. As the key element of reliability in LED lamps is temperature, a solution is proposed for driving LED lamps using voltage sources, such as photovoltaic system batteries, with a control architecture based on pulse width modulation signal that regulates the current applied according to the LED lamp temperature. A prototype of the LED lamp has been implemented and tested to show its good performance at different temperatures and at different battery voltages. Copyright © 2011 John Wiley & Sons, Ltd.     

新世纪照明用白色LED光源

介绍发光二极管的技术进展，主要品种及其在照明领域的应用。     

基于加性混光的色彩可调LED照明设计

从实际应用出发,讨论了基于三基色加性混光原理的发光二极管(LED)照明技术中涉及的混光、自适应驱动电路及相关工艺问题,提出了色彩可预置的人性化LED驱动电路,并着重阐述了该电路的设计及实现过程.     

Fluorescent SiC and its application to white light-emitting diodes

Fluorescent-SiC(f-SiC),which contains donor and acceptor impurities with optimum concentrations, has high conversion efficiency from NUV to visible light caused by donor-acceptor-pair(DAP) recombination. This material can be used as a substrate for a near UV light-emitting diode(LED) stack,and leads to monolithic white LED device with suitable spectral property for general lighting applications.In this paper,we describe basic technologies of the white LED,such as optical properties of f-SiC substrate,and epitaxial growth of NUV stack on the f-SiC substrate.