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发明公开
CN105842634A 一种LED灯具光衰的检测方法 有权

一种LED灯具光衰的检测方法
摘要：
本发明公开了一种LED灯具光衰的检测方法，包含有，步骤S1，提供LED灯具样品；步骤S2，验证所述LED灯具样品的可靠性；步骤S3，获取所述LED灯具样品的正向电压与结温关系曲线；步骤S4，根据所述关系曲线得到所述LED灯具样品在正常工作的情况下所对应的结温值TJ；以及，步骤S5，结合所述结温值TJ与美国能源之星LM?80测试报告数据，推算出所述LED灯具样品的光通维持率。本发明的优点在于为检测LED灯具的光通维持率提供新的途径，具有耗时短、成本低和操作简便的优点，对LED灯具光通维持率的检测和其寿命的准确推算具有广泛的应用前景。
摘要（英）：

The invention discloses a method for detecting luminance attenuation of an LED lamp, comprising steps of providing an LED lamp sample, verifying the reliability of the LED lamp sample, obtaining a relation curve between forward voltage and temperature of the LED lamp sample, obtaining a corresponding junction temperature value TJ of the LED lamp under a normal working condition according to the relation curve, and calculating alumen maintenance rate of the LED lamp sample by combining the junction temperature value TJ and the America energy star LM-80 test report. The method for detecting luminance attenuation of the LED lamp provides the new way for detecting the LED lamp lumen maintenance rate, has advantages of short time consuming, low cost and simple operation, and has a wide applicable prospect for detection of the LED lamp lumen maintenance rate and accurate calculation of the service life.

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