Compact dual-view endoscope without field obscuration

Rajender Katkam; Bhaskar Banerjee; Chih Yu Huang; Xiaoyin Zhu; Luis Ocampo; Jerri Lynn Kincade; Rongguang Liang

doi:10.1117/1.JBO.20.7.076007

Compact dual-view endoscope without field obscuration

Rajender Katkam, Bhaskar Banerjee, Chih Yu Huang, Xiaoyin Zhu, Luis Ocampo, Jerri Lynn Kincade, Rongguang Liang

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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.

Original language	English (US)
Article number	076007
Journal	Journal of biomedical optics
Volume	20
Issue number	7
DOIs	https://doi.org/10.1117/1.JBO.20.7.076007
State	Published - Jul 1 2015

Keywords

colonoscope
endoscopic imaging
illumination design
nonspherical lens design
optical design and fabrication

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Atomic and Molecular Physics, and Optics
Biomedical Engineering

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10.1117/1.JBO.20.7.076007

Cite this

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title = "Compact dual-view endoscope without field obscuration",

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.",

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AU - Katkam, Rajender

AU - Banerjee, Bhaskar

AU - Huang, Chih Yu

AU - Zhu, Xiaoyin

AU - Ocampo, Luis

AU - Kincade, Jerri Lynn

AU - Liang, Rongguang

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AB - 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.

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KW - illumination design

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KW - optical design and fabrication

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Compact dual-view endoscope without field obscuration

Abstract

Keywords

ASJC Scopus subject areas

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