[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/JOSK.2016.20.1.118

Optimization of Cutoff Shields in Projection Headlight Systems to Achieve High Intensity Gradient and Low Color Separation at the Cutoff Line

Joo, Byung-Yun (Department of Mechanical Engineering, Korea University of Technology and Education)
Ko, Jae-Hyeon (Department of Physics, Hallym University)

Publication Information

Journal of the Optical Society of Korea / v.20, no.1, 2016 , pp. 118-124 More about this Journal

Abstract

The shape and location of the cutoff shield in a projection-type headlight system were optimized by a ray-tracing technique. A shield based on a Petsval surface showed better cutoff characteristics than a flat or cylindrical shield, such as a sharp intensity gradient and less color separation at the cutoff line. Adjustment of the shield’s location between the reflector and the aspheric lens further improved its cutoff characteristics.

Keywords

Projection headlight; Cutoff shield; Color separation; Optical simulation;

Citations & Related Records

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