18 March 2015 Fabrication of a chirped artificial compound eye for endoscopic imaging fiber bundle by dose-modulated laser lithography and subsequent thermal reflow
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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.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Shengfeng Deng, Shengfeng Deng, Jinke Lyu, Jinke Lyu, Hongda Sun, Hongda Sun, Xiaobin Cui, Xiaobin Cui, Tun Wang, Tun Wang, Miao Lu, Miao Lu, } "Fabrication of a chirped artificial compound eye for endoscopic imaging fiber bundle by dose-modulated laser lithography and subsequent thermal reflow," Optical Engineering 54(3), 033105 (18 March 2015). https://doi.org/10.1117/1.OE.54.3.033105 . Submission:
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