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Vol. 34, No. 8(3), S&M3042

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Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 28, Number 9 (2016)
Copyright(C) MYU K.K.
pp. 1035-1042
S&M1265 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2016.1392
Published: September 21, 2016

Design with White Light-Emitting Diodes for an Automotive Low-Beam Projector Headlamp [PDF]

Yueh-Ying Chiang, Sheng-Jye Hwang, Huei-Huang Lee, Deng-Yuan Hwang,and Chien-Chih Liao

(Received December 28, 2015; Accepted May 20, 2016)

Keywords: LED headlamp, projection headlamp, ECE R112

A numerical model was developed to design a new automotive low-beam light-emitting diode(LED) headlamp. First, an existing automotive low-beam projector LED headlamp model withray-tracing software (TracePro) was simulated. The existing commercially available automobileLED headlamp is a combination of one multi-reflector and two projection systems serving as a lowbeamLED headlamp module. The simulated results were compared with the headlamp regulationsto prove that the headlamp numerical model and boundary conditions were correct and similar toreality. Finally, the original design was modified into only two projection systems using singlelight-output 515 lumen LEDs. Each projection system was improved to make the headlamp lightdistributions conform to the ECE R112 regulation. It was concluded that using a high power LEDcould decrease the number of optical systems required for an automotive headlamp.

Corresponding author: Sheng-Jye Hwang


Cite this article
Yueh-Ying Chiang, Sheng-Jye Hwang, Huei-Huang Lee, Deng-Yuan Hwang,and Chien-Chih Liao, Design with White Light-Emitting Diodes for an Automotive Low-Beam Projector Headlamp, Sens. Mater., Vol. 28, No. 9, 2016, p. 1035-1042.



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