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Proceedings Paper

Design of the optical structure of a LED light of airfield used on the taxiway centerline of bend
Author(s): Xiaodan Ma; Jianhong Yang; Lei Li
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Paper Abstract

Along with the continuous renewal of the light source, LED light source could have been used in the lights of airfield already. LED light source in the application will be more energy efficient. This paper designs the optical structure of the taxiway centerline light,which is used on the bend. Osram LT CPDP - KZ - 4 green LED has been chosen to be the light source.Optical components used in the structure, such as the prism, the lens, the scattering pieces, is designed on the basis of the optical design principles. The optical design principle include the edge-ray etendue conservation, conservation of energy and so on. Then, the structure is drawn and simulated. Completing these steps combines with software, such as ProE, Matlab and TracePro. To test the optical structure with Yuanfang GO-2000 distribution photometer. The test results meet the standards of the civil aviation administration’s requirements. In order to further reduce energy consumption, and optimize the components on the premise of meeting the requirements of national standards. The paper reduces the input current from 900mA to 400mA by optimizing the components. The method of optimizing is combining the prism with scattering pieces and optimizing the lens surface. The optical structure of the taxiway centerline lights used on the bend after improving is more efficient and meet the requirements of national standards including chromaticity and light intensity.

Paper Details

Date Published: 21 August 2014
PDF: 7 pages
Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 92331R (21 August 2014); doi: 10.1117/12.2069576
Show Author Affiliations
Xiaodan Ma, Second Institute of Civil Aviation Administration of China (China)
Jianhong Yang, Second Institute of Civil Aviation Administration of China (China)
Lei Li, Second Institute of Civil Aviation Administration of China (China)


Published in SPIE Proceedings Vol. 9233:
International Symposium on Photonics and Optoelectronics 2014
Zhiping Zhou, Editor(s)

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