研制了一种新型的平面移动式车灯配光检测系统。通过同国内通用的转台式车灯配光测试系统比较,建立了误差传递函数,分析了两种系统的误差;与标准照度计比较,测试出测试点的光照度值误差;最后,由多点残差法计算信号灯最佳测试距离。对JT200和AD100车灯进行测试,结果表明,该测试系统的理论定位精度为0.14 mm,是转台式测试系统的31倍,照度测试误差为0.02 lx,精度提高了2倍;该测试系统信号灯发光强度测试误差与测试距离成正比,转台式测试系统的最佳测试距离为2 m,而不是国内通用的3.16 m。该检测系统精度高,车灯测试距离可调,易于控制,能满足国际标准测试要求。

To improve the accuracy of light distribution test of automotive lamp and to reduce cost, a novel light distribution test system based on moving in the plane for automotive lamp was researched to test luminance of every point on light screen. By comparing to the current rotating desk system with the best precision in China, the error transfer function was founded and errors of two systems were analyzed. Then, the accuracies to two kinds of test systems were tested with national benchmark lumeter. Finally, the best distance of automotive signal light was calculated from residual error norm. After testing JT200 headlamp and AD100 signal light, the experimental results indicate that the position precision of the system is 0.14 mm, which is 31 times that of the current rotating desk system, and luminance accuracy is 0.02 lx,three times that of current one. The experiment to automotive signal light shows that the best test distance for the rotating desk system is 2 m instead of 3.16 m used currently in China, and the luminance accuracy of new-style system is direct proportion to the test distance. These results can satisfy the system requirements of national standard in higher precision, rapid speed and the adjustable test distance to lamp.