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Optical Engineering

Fabrication of a chirped artificial compound eye for endoscopic imaging fiber bundle by dose-modulated laser lithography and subsequent thermal reflow
Author(s): Shengfeng Deng; Jinke Lyu; Hongda Sun; Xiaobin Cui; Tun Wang; Miao Lu
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Paper Abstract

A chirped artificial compound eye on a curved surface was fabricated using an optical resin and then mounted on the end of an endoscopic imaging fiber bundle. The focal length of each lenslet on the curved surface was variable to realize a flat focal plane, which matched the planar end surface of the fiber bundle. The variation of the focal length was obtained by using a photoresist mold formed by dose-modulated laser lithography and subsequent thermal reflow. The imaging performance of the fiber bundle was characterized by coupling with a coaxial light microscope, and the result demonstrated a larger field of view and better imaging quality than that of an artificial compound eye with a uniform focal length. Accordingly, this technology has potential application in stereoscopic endoscopy.

Paper Details

Date Published: 18 March 2015
PDF: 6 pages
Opt. Eng. 54(3) 033105 doi: 10.1117/1.OE.54.3.033105
Published in: Optical Engineering Volume 54, Issue 3
Show Author Affiliations
Shengfeng Deng, Xiamen Univ. (China)
Jinke Lyu, Xiamen Univ. (China)
Hongda Sun, Xiamen Univ. (China)
Xiaobin Cui, Xiamen Univ. (China)
Xiamen University (China)
Tun Wang, Xiamen Univ. (China)
Miao Lu, Xiamen Univ. (China)


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