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Journal of Biomedical Optics

Compact dual-view endoscope without field obscuration
Author(s): Rajender Katkam; Bhaskar Banerjee; Chih-Yu Huang; Xiaoyin Zhu; Luis Ocampo; Jerri-Lynn Kincade; Rongguang Liang
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Paper 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.

Paper Details

Date Published: 15 July 2015
PDF: 4 pages
J. Biomed. Opt. 20(7) 076007 doi: 10.1117/1.JBO.20.7.076007
Published in: Journal of Biomedical Optics Volume 20, Issue 7
Show Author Affiliations
Rajender Katkam, Univ. of Arizona (United States)
Bhaskar Banerjee, The Univ. of Arizona College of Medicine (United States)
The Univ. of Arizona (United States)
The Univ. of Arizona (United States)
Chih-Yu Huang, College of Optical Sciences, The Univ. of Arizona (United States)
Xiaoyin Zhu, College of Optical Sciences, The Univ. of Arizona (United States)
Luis Ocampo, The Univ. of Arizona College of Medicine (United States)
Jerri-Lynn Kincade, The Univ. of Arizona (United States)
Rongguang Liang, College of Optical Sciences, The Univ. of Arizona (United States)


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