Panoramic endoscopy

Sara Batson Fair; John A. Gilbert

doi:10.1117/12.60238

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1 August 1992 Panoramic endoscopy

Sara Batson Fair, John A. Gilbert

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Proceedings Volume 1649, Optical Fibers in Medicine VII; (1992) https://doi.org/10.1117/12.60238
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

The limited field of view available with conventional endoscopes has restricted the extent to which a full assessment of an abnormality and its anatomical relationship to surrounding structures may be made. The purpose of this research is to design a prototype system of a new endoscope that allows for an increased field of view to be obtained when compared to traditional endoscopes. The design of the system utilizes a panoramic annular lens (PAL) to obtain an image of the 360 degrees surrounding the optical axis of the lens. PALs have been characterized and evaluated on a larger scale in previous work performed in our laboratory. In the development of a prototype panoramic endoscope, research has been performed in the design of an optical train utilizing a miniaturized PAL and in its integration with fiber optics to obtain a panoramic view of the interior of a cylindrical pipe. The annular image obtained with this system has been linearized using customized software routines to obtain a more conventional view.

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Sara Batson Fair and John A. Gilbert "Panoramic endoscopy", Proc. SPIE 1649, Optical Fibers in Medicine VII, (1 August 1992); https://doi.org/10.1117/12.60238

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