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Proceedings Paper

Studies of light-emitting diode sources for photobiomodulation on cells
Author(s): Jiang Liu; Timon Cheng-Yi Liu; Xiao-Yuan Deng; Guang-Han Fan; Song-Hao Liu
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Paper Abstract

Light-emitting diode (LED), smaller and less expensive, requires less power than laser does, is more and more popular in studying photobiomodulation. Three new LED systems with different intensity have been designed in this paper. The three LED systems consist of a set of lens to expand the beam of light or/and to focus the rays of light, and an array of LEDs set in the sphere connected with Fresnel lens. The intensity of the three LED systems ranges from: 0.002 to 1.465 W/m2 with the spot diameter 40 mm; 0.358 to 11.229 W/m2 with the spot diameter 60 mm; 17.626 to 115.371 W/m2 with the spot diameter 80 mm. Their experimental formulae for calculating intensity were obtained by SPSS.

Paper Details

Date Published: 2 February 2006
PDF: 7 pages
Proc. SPIE 6026, ICO20: Biomedical Optics, 60260D (2 February 2006); doi: 10.1117/12.667107
Show Author Affiliations
Jiang Liu, South China Normal Univ. (China)
Timon Cheng-Yi Liu, South China Normal Univ. (China)
Xiao-Yuan Deng, South China Normal Univ. (China)
Guang-Han Fan, South China Normal Univ. (China)
Song-Hao Liu, South China Normal Univ. (China)

Published in SPIE Proceedings Vol. 6026:
ICO20: Biomedical Optics
Gert von Bally; Qingming Luo, Editor(s)

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