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Optical Engineering

Design of a foveated wide-angle endoscopic lens
Author(s): Xavier Dallaire; Simon Thibault
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Paper Abstract

Recent improvements in optics miniaturization have led to the development of multiple techniques in order to perform minimally invasive endoscopic procedures. Among them, the wide-angle lens is often used for its simplicity and ability to collect a large amount of information in one capture. We report the design and analysis of two versions of a wide-angle endoscope with a full field of view of 180 deg. The difference between the two designs resides in the direct control over distortion that was used in order to achieve foveated imaging. By doing so, the local magnification at the center of the image can be controlled during the design process, allowing for a better resolution in the center of the field of view. The design is also folded in order to address certain issue concerning the region of interest during an endoscopic procedure.

Paper Details

Date Published: 19 April 2016
PDF: 8 pages
Opt. Eng. 55(4) 047106 doi: 10.1117/1.OE.55.4.047106
Published in: Optical Engineering Volume 55, Issue 4
Show Author Affiliations
Xavier Dallaire, Univ. Laval (Canada)
Simon Thibault, Univ. Laval (Canada)

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