4 October 2012 Development of a miniature single lens dual-aperture stereo imaging system towards stereo endoscopic imaging application
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Abstract
Studies have shown that stereo images improve surgeons' visuomotor tasks and therefore constructively affect the outcome of a minimally invasive surgery. Stereo images are captured by a stereo endoscope, which consists commonly of duplicate lens systems. However, stereo images can also be captured by a single lens system following a dual aperture scheme (DAS). DAS creates two spatially separated optical channels by placing a dual aperture plate in the limiting aperture of a single lens system. This paper describes efforts to miniaturize the DAS-based imaging system for use in minimally invasive surgery. To demonstrate feasibility, a prototype was fabricated using lens elements 3 mm in diameter and was tested for its stereo depth effect (SDE). The SDE of the prototype was then compared to a duplicate lens system that was constructed theoretically in the same diameter as the 3-mm prototype. The results show that the prototype yields 4/7 of the SDE of the theoretical model. However, the SDE of the prototype provides sufficient SDE, in a viewing range of 1 to 2.5 cm from the lens, for minimally invasive surgery.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Sam Y. Bae, Sam Y. Bae, Ronald J. Korniski, Ronald J. Korniski, John M. Choi, John M. Choi, Michael Shearn, Michael Shearn, Poyan Bahrami, Poyan Bahrami, Harish M. Manohara, Harish M. Manohara, Hrayr K. Shahinian, Hrayr K. Shahinian, } "Development of a miniature single lens dual-aperture stereo imaging system towards stereo endoscopic imaging application," Optical Engineering 51(10), 103202 (4 October 2012). https://doi.org/10.1117/1.OE.51.10.103202 . Submission:
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