CHEN Yi-min, NIE Rong, HUANG Jie. Optical design of automotive headlamp with LED[J]. Journal of Applied Optics, 2010, 31(3): 390-394.
Citation: CHEN Yi-min, NIE Rong, HUANG Jie. Optical design of automotive headlamp with LED[J]. Journal of Applied Optics, 2010, 31(3): 390-394.

Optical design of automotive headlamp with LED

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  • Due to its superior performances such as energy saving and environmental protection,LED is widely used in automotive lighting. As a key technique on automotive lighting system,light distribution design of LED automotive headlamp is a challenging research subject. LED sources were chosen according to the standard,and Light distribution was analyzed by using parabolic reflector under moving and rotating conditions. Each light source has its selfcontained optical system and arranges the irradiance of different area on distribute-screen, 8 LED sources were used in low-beam system,and 10 LED sources were used in high-beam system. Combined reflector model was drawn in CATIA software. The final results were achieved by using Tracepro after calling different lens model iteratively. Baffle board and complex calculation program were not required in this design process. This method has short design period and high distribution efficiency. The final illumination results completely conform to the revised standard of GB4599-2007.
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