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Proceedings Paper

The optical design of stereo endoscope
Author(s): Yang Xiang; Huiling Jiang; Jiasheng Hu
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Paper Abstract

Stereo endoscope has played an important role in video 3-dimensional laparoscopy system. This paper presents the design principle of the stereo endoscope applying in minimal invasive surgery (MIS). Optical imaging technologies and instrument designs are discussed in relation to their current and future use in MIS procedures, then this paper analyses and compares three design methods of optical system, technical limitations in imaging technology are described along with potential solutions. We put forward to a new optical design methods, namely, the system adopts two optical channels stereoscopic-imaging technique to replicate human binocular vision. A stereoscopic system for video endoscopes includes objective lens system, relay system, eyepiece system and the focused lens between eyepiece and CCD. This paper present equal-angle pairs from symmetrically disposed object points to the system. This equal-angle property enables accurate object/image mapping onto the final stereo image pair. And the doctors can watch the true stereo image on the screen. This optical system has common characteristic compare to the common laparoscopy with long work distance-300mm and wide field-70 degree, as a result, the optical system have serious aberration related field, especially in distortion, the distortion can reduced from 15% to 5%.

Paper Details

Date Published: 21 August 2005
PDF: 6 pages
Proc. SPIE 6034, ICO20: Optical Design and Fabrication, 60340S (21 August 2005); doi: 10.1117/12.668112
Show Author Affiliations
Yang Xiang, Dalian Univ. of Technology (China)
Changchun Univ. of Science and Technology (China)
Huiling Jiang, Changchun Univ. of Science and Technology (China)
Jiasheng Hu, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6034:
ICO20: Optical Design and Fabrication
James Breckinridge; Yongtian Wang, Editor(s)

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