The Design of LED Fiber Automotive Headlamp

Abstract:

It's more and more common to use LED as the light source in automotive lighting. But heat dissipation and low light output of single die light source have restricted the LED to be the mainstream. To use fiber as light-transmitting component could perfectly resolve above weakness. In the paper a design method of LED fiber automotive headlamp is mentioned. And for COB (chip on board) LED, a mathematic model of TIR (total internal reflected) lens is proposed. It could effectively focus the rays emitted from surface light source.

• Periodical: Key Engineering Materials (Volume 679)
• Pages: 79-84
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.679.79
• Online since: February 2016
• Authors: B. Wang*, Suet To, Wen Kui Wang, Ka Chun Cheung
• Keywords: Automotive Headlamp, COB LED, Fiber, TIR Lens

References

[1] Engineering optics, The first printing & first edition, (1999).

[2] Hogrefe H, Neumann R. Aplication of Free Form Reflectors in Modern Headlamp System, SAE950593.

[3] Kern, S.R.: Light-Emitting Diodes in Automotive Forward Lighting Applications: In: SAE Technical Paper Series 2004-01-0224.

DOI: 10.4271/2004-01-0225

[4] Michael Hamm and Ralf Ackermann, LED in Headlamps Revolution in Styling and Technology, ATZ 11/2005 Volume 107.

DOI: 10.1007/bf03224781

[5] Reil J., Bogner, G.: Potential Use of LEDs in forward Lighting. In: Progress in Automotive Lighting 2003, pp.841-850.

[6] W Gro h, et al. Prospect s for t he development and application of plastic optical fiber s [J]. Plastic Optical Fibers. SPIE, 1997, 1592: 20- 29.