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15 July 2015 Compact dual-view endoscope without field obscuration
Rajender Katkam, Bhaskar Banerjee, Chih-Yu Huang, Xiaoyin Zhu, Luis Ocampo, Jerri-Lynn Kincade, Rongguang Liang
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Journal of Biomedical Optics, Vol. 20, Issue 7, 076007 (July 2015). https://doi.org/10.1117/1.JBO.20.7.076007
Abstract
We have developed a compact dual-view endoscopic probe without field obscuration to address the need of simultaneously observing forward and backward fields of view (FOVs) in the colon. The objective is compact with the forward-view and rear-view optical paths sharing the same optical elements. The compact objective is new in that no FOV is blocked. The illumination for forward-view imaging is provided by the cylindrical light guide and backward illumination is achieved with a reflector. We have designed, prototyped, and tested the endoscope by comparing it to a standard clinical colonoscope. We will discuss the system concept, objective design, fabrication of the freeform lens, and test results.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 1083-3668/2015/$25.00 © 2015 SPIE
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Rajender Katkam, Bhaskar Banerjee, Chih-Yu Huang, Xiaoyin Zhu, Luis Ocampo, Jerri-Lynn Kincade, and Rongguang Liang "Compact dual-view endoscope without field obscuration," Journal of Biomedical Optics 20(7), 076007 (15 July 2015). https://doi.org/10.1117/1.JBO.20.7.076007
Published: 15 July 2015
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Cited by 9 scholarly publications.
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KEYWORDS
Endoscopes
Objectives
Colon
Prototyping
Endoscopy
Colorectal cancer
Light emitting diodes
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