Studies of light-emitting diode sources for photobiomodulation on cells

Jiang Liu; Timon Cheng-Yi Liu; Xiao-Yuan Deng; Guang-Han Fan; Song-Hao Liu

doi:10.1117/12.667107

2 February 2006 Studies of light-emitting diode sources for photobiomodulation on cells

Jiang Liu, Timon Cheng-Yi Liu, Xiao-Yuan Deng, Guang-Han Fan, Song-Hao Liu

Proceedings Volume 6026, ICO20: Biomedical Optics; 60260D (2006) https://doi.org/10.1117/12.667107
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

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.

Citation Download Citation

Jiang Liu, Timon Cheng-Yi Liu, Xiao-Yuan Deng, Guang-Han Fan, and Song-Hao Liu "Studies of light-emitting diode sources for photobiomodulation on cells", Proc. SPIE 6026, ICO20: Biomedical Optics, 60260D (2 February 2006); https://doi.org/10.1117/12.667107

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