Compact dual-view endoscope without field obscuration

被引：11
|
作者：
Katkam, Rajender [1 ]
Banerjee, Bhaskar [1 ,2 ,3 ]
Huang, Chih Yu [1 ]
Zhu, Xiaoyin [1 ]
Ocampo, Luis [2 ]
Kincade, Jerri-Lynn [3 ]
Liang, Rongguang [1 ]
机构：
[1] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA
[2] Univ Arizona, Coll Med, Tucson, AZ 85724 USA
[3] Univ Arizona, Dept Biomed Engn, Tucson, AZ 85721 USA
来源：
JOURNAL OF BIOMEDICAL OPTICS | 2015年 / 20卷 / 07期
关键词：
endoscopic imaging; nonspherical lens design; optical design and fabrication; illumination design; colonoscope; RANDOMIZED CONTROLLED-TRIAL; COLONOSCOPY; CANCER; PERFORMANCE; ADENOMAS;
D O I：
10.1117/1.JBO.20.7.076007
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
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. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：4
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