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LED太阳能路灯头是光电器件,其工作过程中只有10%至40%的电能转换成光能,其余的电能几乎都转换成热能。对于照明用LED灯具,在特定面积下所需的流明量可能超过上千流明或上万流明,LED工作过程产生热量集中在尺寸很小的芯片内,芯片温度升高,引起热应力的非均匀分布、芯片发光效率和萤光粉激射效率下降;当温度超过一定值时,器件失效率呈指数规律增加。
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MUQIANSHICHANGSHANGCHANGJIANDELEDTAIYANGNENGLUDENGCHANPINZHUYAOYOULED GUANGYUAN、SANREQI、QITAJIEGOUJIANDENGBUFENZUCHENG,SANREQIJIQITAJIEGOUJIANGONGTONGGOUCHENGLEDTAIYANGNENGLUDENGTOUCHANPINSANREZUJIAN。SANREZUJIANCHENGDANSANREGONGNENG,TONGSHIZUOWEIDENGJUQIAOTIYECHENGDANDIANZIQIJIANFANGHUGONGNENG,SHIQIBIMIANZHANRANHUICHEN、YETIHUOYUQITAWUZHIJINXINGBUBIYAODEJIECHUDENG。
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