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Proceedings Paper

Prototype scanning fiber endoscope
Author(s): Eric J. Seibel; Quinn Y. J. Smithwick; Janet L. Crossman-Bosworth; John A. Myers
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Paper Abstract

Commercial optical endoscopes rely on image transfer and acquisition based on an array of photon detectors, such as a coherent fiberoptic bundle, a video camera, and/or the human retina. An alternative approach uses a resonantly vibrating optical fiber that scans laser illumination. However, the limitation of laser-scanning endoscopic development has been the technological challenge of fabricating a small diameter, opto-mechanical scanner. A proof-of-concept micro-optical scanner has been built using a 2.3 mm diameter piezoelectric actuator and 4 mm diameter lenses. Images are generated using resonant spiral scanning of the fiber, projecting monochromatic laser light to an illumination plane. A single photodetector is used to acquire grayscale images one pixel at a time. In vitro, the acquired images of test targets have 10 to 20 micrometers maximum spatial resolution and a field-of-view that can be electronically varied.

Paper Details

Date Published: 26 March 2002
PDF: 7 pages
Proc. SPIE 4616, Optical Fibers and Sensors for Medical Applications II, (26 March 2002); doi: 10.1117/12.463810
Show Author Affiliations
Eric J. Seibel, Univ. of Washington (United States)
Quinn Y. J. Smithwick, Univ. of Washington (United States)
Janet L. Crossman-Bosworth, Univ. of Washington (United States)
John A. Myers, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 4616:
Optical Fibers and Sensors for Medical Applications II
Israel Gannot, Editor(s)

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