An innovative vehicle headlamp design based on a high-efficiency LED light pipe system-Reference-Cited by-同舟云学术

An innovative vehicle headlamp design based on a high-efficiency LED light pipe system

Published:2013-11-29 Issue:2 Volume:47 Page:210-220
ISSN:1477-1535
Container-title:Lighting Research & Technology
language:en
Short-container-title:Lighting Research & Technology

Author:

Whang AJW¹²,Jhan KC¹,Chao SM¹,Chen GW¹,Chou CH¹,Lin CM¹,Chang CM¹,Chen KY¹,Lai YL¹

Affiliation:

1. Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan

2. Graduate Institute of Color and Illumination Technology, National Taiwan University of Science and Technology, Taipei, Taiwan

Abstract

We propose an innovative vehicle headlight design based on a highly efficient LED light pipe system. In the system, light rays are emitted from multiple high-power LEDs in front of a total internal reflection (TIR) lens. After passing through the TIR lens, the rays are divided into two beams by a prism splitter, and each beam is guided to each headlamp by a light pipe. We propose the system because it uses fewer LEDs but provides enough lumens and reduces the number of TIR lenses required. Detailed analysis of the system is given, and the simulation results show that the headlamp produces a legal Economic Commission for Europe (ECE) low-beam pattern, with a total optical efficiency up to 40.2%, when four LED (Lumileds-K2) sources are used.

Publisher

SAGE Publications

Subject

Electrical and Electronic Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/1477153513513785

Reference7 articles.

1. Etendue-preserving mixing and projection optics for high-luminance LEDs, applied to automotive headlamps

2. Computer modeling of a fiber-and-light-emitting-diode-based vehicle headlamp

3. Freeform lens design for LED collimating illumination

4. Freeform surface lens for LED uniform illumination

5. Novel optical single-mode asymmetric Y-branches for variable power splitting

Cited by 12 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Analysing the potential of a simulation-based method for the assessment of CO2 savings from eco-innovative technologies in light-duty vehicles;Energy;2022-04

2. Review of optical design for vehicle forward lighting based on white LEDs;Optical Engineering;2021-08-24

3. Asymmetric Double Freeform Surface Lens for Integrated LED Automobile Headlamp;Micromachines;2021-06-05

4. Minimum achievable height of a single-module LED low-beam projection headlamp;Applied Optics;2021-04-05

5. Analysis of light extraction in light pipes by linear and elliptical grooves using different source aperture angles;Optical Engineering;2020-03-28