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Proceedings Paper

The research on LED-based spectrally tunable light source for star simulator
Author(s): Xiaojuan Zhang; Guoyu Zhang; Jian Zhang
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Paper Abstract

In order to meet the requirements of multi-color temperature, high precision and wide spectrum, a large number of LED in different colors are used as internal light source for an integrating sphere. An asymmetric Gaussian function model is established to realize non-uniform spectral peak intervals. The research aims to find the desired spectral distribution of LED and the number in use through specific properties of the target spectrum to improve the obtained original fitting model. Simulation of spectral curve of specific color temperature can be realized through the simulation of standard blackbody spectral curve. The result shows that matching simulation error for small band is within 12%, and matching error verified by relative area method is within 4.63%.

Paper Details

Date Published: 31 December 2013
PDF: 7 pages
Proc. SPIE 9042, 2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 904218 (31 December 2013); doi: 10.1117/12.2037460
Show Author Affiliations
Xiaojuan Zhang, Changchun Univ. of Science and Technology (China)
Jilin Technology College of Electronic Information (China)
Guoyu Zhang, Changchun Univ. of Science and Technology (China)
Jian Zhang, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9042:
2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Xiaocong Yuan; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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