A study on the efficiency improvement of a single fiber guided illumination system for disposable flexible endoscope (DFE)

Hyeon Jin Bang; Byung Jun Park; Young Jae Won; Seungrag Lee

doi:10.1117/12.2212402

7 March 2016 A study on the efficiency improvement of a single fiber guided illumination system for disposable flexible endoscope (DFE)

Hyeon Jin Bang, Byung Jun Park, Young Jae Won, Seungrag Lee

Author Affiliations +

Proceedings Volume 9702, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI; 970214 (2016) https://doi.org/10.1117/12.2212402
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

We have studied the method to improve the illumination efficiency in DFE with optical illumination design software. We have showed the result of illumination efficiency according to the change of geometrical shape in distal tip of plastic optical fiber (POF). We simulated the illumination efficiency in the case of the polished POF distal tip and the unpolished one, respectively using optical illumination system design software. We obtained the illumination efficiency was increased by about 46 percent in the polished distal tip more than in the unpolished distal tip when a light emitting diode (LED) was directly excited to the distal tip of POF. In order to demonstrate the simulated results, we showed the polishing fabrication of the distal tip in POF and have measured the illumination efficiency of the polished POF using LED. The measured results showed that illumination efficiency was increased by about 23 percent in the polished distal tip more than in the unpolished distal tip of POF. We have demonstrated the optimized geometrical shapes of the POF for minimization of the illumination loss. We have suggested the method to improve the illumination efficiency by 69 percent for a single fiber illumination delivery system of DFE.

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Hyeon Jin Bang, Byung Jun Park, Young Jae Won, and Seungrag Lee "A study on the efficiency improvement of a single fiber guided illumination system for disposable flexible endoscope (DFE)", Proc. SPIE 9702, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI, 970214 (7 March 2016); https://doi.org/10.1117/12.2212402

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KEYWORDS

Phase only filters

Polishing

Light emitting diodes

Optical design

Endoscopes

Light sources

Polymer optical fibers

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