摘要
基于LM 84灯具和光源寿命测试方法,对LED筒灯、LED球泡灯、LED路灯和PAR灯四种产品的10 000小时光通维持率和颜色漂移进行寿命评价。对每一种样品分别选取指数函数、线性函数和对数函数三种函数模型进行拟合,利用最小二乘法计算出不同函数模型下的寿命结果。通过拟合程度的比较得出不同种类的产品的维持寿命推算不只局限于一种指数函数模型的计算方法。
Based on LM 84's luminaire and light source life test method,the life evaluation was evaluated of the 10 000 h luminous flux and color maintenance of the four products of LED lamp,LED bulb,LED street lamp and par lamp. For each sample,the three function models of exponential function,linear function and logarithmic function were selected to fit together,and the life results under different function models were calculated by using least square method. It is concluded that the calculation of the maintenance life of different kinds of products is not limited to the calculation method of an exponential function model.
出处
《照明工程学报》
2018年第1期39-42,共4页
China Illuminating Engineering Journal
基金
港澳台科技合作专项"LED灯具加速寿命试验方法与可靠性研究"(2015DFT10120)资助
质检公益性行业科研专项"人工照明光源与自然阳光光生物安全性的研究"(201410140)资助
关键词
光通维持率
颜色漂移
寿命
曲线拟合
lux maintenance
color parameter change
lifetime
curve fitting
