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出光率是影响LED发光效率的重要因素之一,优化LED出光率可以提高LED的器件发光效率.文章利用TracePro软件模拟分析了封装结构对LED出光率的影响,分析结果表明:封装腔体的形状与出光率关系不大,而封装腔体的张角、封装腔体顶面的凹凸性与出光率有较大关系,另外出光率还与腔体的高度、封装腔体的反射率、腔体的母线均相关.总之LED封装结构会影响LED出光率,在进行LED封装时,要选择合适的封装结构才能获得较高的LED出光率.

参考文献

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