不同功率 LED 参数测试与分析摘要本文的重点是大功率 LED 测试及分析。大功率 LED 的电参数和光参数，是通过测其光谱图和相应参数随电流的变化曲线图，然后再对其相关特性进行分析的从分析中进一步加深对 LED 电参数和光参数等方面知识了解和认识。进而了解这些参数随电流的变化情况，如正向电压（VF）、光通量（Φ）、色温（Tc）等一系列参数的相应变化过程。测量和掌握 LED 的光电特性及外界因素对光电特性的影响，是正确使用大功率 LED 的基础将有助于更好大功率 LED 在照明方面合理应用，提高大功率 LED 的效率。关键词：LED 结构，发光原理，电参数，光参数，VF，功率，光通量，色温，应用领域AbstractThe focus of this paper is high power LED testing and analysis. The electrical and optical parameters of high-power leds are analyzed by measuring their spectra and the curves of the corresponding parameters changing with the current. From the analysis to further deepen the LED electrical parameters and optical parameters and other aspects of knowledge and understanding. To understand these parameters with the change of electric current, such as forward voltage (VF), luminous flux (Φ), color temperature (Tc) and a series of process parameters to the corresponding change. Measuring and mastering the photoelectric characteristics of LED and the influence of external factors on the photoelectric characteristics are the basis for the correct use of high-power LED, which will contribute to the rational application of high-power LED in lighting and improve the efficiency of high-power LED.Keywords: LED structure, luminescence principle, electrical parameters, optical parameters, VF, power, luminous flux, color temperature, application field2目录前 言 …………………………………………………………………………………4一、LED 的基础知识…………………………………………………………………51.1 LED 的结构及发光原理…………………………………………………5 1....
