학술논문
Design of an LED-based headlamp low-beam system using combined prisms.
Document Type
Article
Source
Subject
*LIGHT emitting diodes
*LIGHTING
*LIGHT
*DAYLIGHT
*LIGHT sources
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*
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Language
ISSN
1477-1535
Abstract
An effective high-efficiency LED headlamp system for automotive low-beam lighting which consists of parabolic reflector, compound lenses and combined prisms, is introduced in this paper. Using a single, high-brightness LED, the illumination requirements for a headlamp low beam specified by UNECE regulation ‘Addendum 111: Regulation No. 112 Revision 2’ can be achieved. On the test screen at a distance of 25 m, simulation results as well as testing results for the prototype meet the requirements of the UNECE regulation for all specified regions and key points. [ABSTRACT FROM AUTHOR]