Quantitative evaluation of the uniformity for an automotive head lamp beam pattern

Ben Wang; Douglas Frederick Kreysar; Jianzhong Jiao

doi:10.1117/12.216783

18 August 1995 Quantitative evaluation of the uniformity for an automotive head lamp beam pattern

Ben Wang, Douglas Frederick Kreysar, Jianzhong Jiao

Proceedings Volume 2622, Optical Engineering Midwest '95; (1995) https://doi.org/10.1117/12.216783
Event: Optical Engineering Midwest '95, 1995, Chicago, IL, United States

Abstract

A method of evaluating the uniformity of an illumination pattern of an automotive head lamp on a road surface is presented. The most critical area where the beam pattern uniformity can be identified is the high intensity region. In this area two evaluating parameters, correlation set, and contrast level are discussed. In a low intensity region of the illumination pattern, the same principle can be applied.

Citation Download Citation

Ben Wang, Douglas Frederick Kreysar, and Jianzhong Jiao "Quantitative evaluation of the uniformity for an automotive head lamp beam pattern", Proc. SPIE 2622, Optical Engineering Midwest '95, (18 August 1995); https://doi.org/10.1117/12.216783

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