標題: Design and analysis of radial imaging capsule endoscope (RICE) system
作者: Ou-Yang, Mang
Jeng, Wei-De
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 28-Feb-2011
摘要: In this study, a radial imaging capsule endoscope (RICE) system is designed, which differs from a conventional front imaging capsule endoscope (FICE) system. To observe the wrinkled intima of the intestine, which spreads without folding around the circumference of the capsule when a capsule endoscope with a diameter that slightly exceeds that of the intestine passes through it, the RICE uses a cone mirror, a radial window shell, and a focus optical module that comprise the radial imaging system. This concept was demonstrated in a packaged optical simulator. The RICE optical model also has been established and verified by many simulations and experiments. In minimizing the sagittal and tangential aberrations, the optical module of the RICE has achieved an F-number of 4.2, a viewing angle of 65.08 degrees, and an RMS radius of the 4th to 6th fields of less than 17 um. A comparison of these characteristics with those of the focus optical module that is used in FICE lenses reveals that the spot size is 50% larger for each field, and the modulation transfer function (MTF) is remarkably improved from 7% to 36% at 100 lp/mm on the 5th field of the sagittal plane. (C) 2011 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.19.004369
http://hdl.handle.net/11536/9280
ISSN: 1094-4087
DOI: 10.1364/OE.19.004369
期刊: OPTICS EXPRESS
Volume: 19
Issue: 5
起始頁: 4369
結束頁: 4383
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