Title: Secondary optical element design for intracorporeal LED illumination system
Authors: Pan, Jui-Wen
Su, Ying-Chieh
Chen, Yao-Shan
Institute of Photonic System
Institute of Imaging and Biomedical Photonics
Biomedical Electronics Translational Research Center
Issue Date: 15-Jan-2014
Abstract: In this Letter, we propose an intracorporeal illumination system for providing uniform and wide-field illumination during minimally invasive surgery. The illumination system is comprised of an Alexis wound retractor, a set of LEDs, and secondary optical elements (SOEs). The SOE was composed of a Fresnel lens and a total internal reflection lens, which was designed to improve the optical performance of the LED. The results of simulation demonstrate that the optical efficiency of each LED with an SOE could be increased from 33.6% to 82.9%. To avoid damage to human tissue by thermal effect, the number of LEDs with SOEs was optimized. The results indicate that our design to be applicable for practical surgery. (C) 2014 Optical Society of America
URI: http://dx.doi.org/10.1364/OL.39.000224
ISSN: 0146-9592
DOI: 10.1364/OL.39.000224
Volume: 39
Issue: 2
Begin Page: 224
End Page: 227
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