Eight-point Photometric Characteristic Design of Low Beam
Based on the regulations on eight-point illuminance value in zone Ⅲ of low beam of guo biao(GB),economic commission for europe(ECE),and federal motor vehicle safety standards(FMVSS)standards,two kinds of solutions and principles for meeting these points photometric in poly-ellipsoid-system(PES)module are discussed.Using the ray tracing method,the structure characteristics and quality assurance are analyzed in detail,and the light distribution results are simulated,the advantages and disadvantages of the two schemes are compared,and the theoretical basis and design scheme are provided for the lighting design.
PES modulelow beameight-point illuminanceauto lamp
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