Materials, Photonic Devices, and Sensors

Design of a foveated wide-angle endoscopic lens

[+] Author Affiliations
Xavier Dallaire, Simon Thibault

Université Laval, COPL, 2375 rue de la Terrasse, Québec G1V 0A6, Canada

Opt. Eng. 55(4), 047106 (Apr 19, 2016). doi:10.1117/1.OE.55.4.047106
History: Received October 22, 2015; Accepted March 21, 2016
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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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Xavier Dallaire and Simon Thibault
"Design of a foveated wide-angle endoscopic lens", Opt. Eng. 55(4), 047106 (Apr 19, 2016). ; http://dx.doi.org/10.1117/1.OE.55.4.047106


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