Structure and characterization of an enhanced laser-scanning endoscope based on microelectromechanical mirrors

A miniaturized laser-scanning endoscope is presented that makes use of a composite laser beam for color imaging. A novel approach is followed in the device, which is based on scanning the target tissue with the laser beam using two miniaturized MEMS (microelectromechanical systems) micromirrors and...

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Bibliographic Details
Published in:Journal of electronic imaging 2006-04, Vol.15 (2), p.023003-0230011
Main Authors: Albrecht, Hansjo¨rg, Papageorgas, Panagiotis G, Maroulis, Dimitris, Theofanous, Nikiforos, Karkanis, Stavros, Wagner, Bernd, Schurr, Marc, Depeursinge, Christian, Menciassi, Arianna
Format: Article
Language:English
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Summary:A miniaturized laser-scanning endoscope is presented that makes use of a composite laser beam for color imaging. A novel approach is followed in the device, which is based on scanning the target tissue with the laser beam using two miniaturized MEMS (microelectromechanical systems) micromirrors and employs specific collection, detection, and postprocessing of the scattered light for reconstructing a color image of the tissue. A resolution of the order of is achieved for a working distance of while the focal depth is larger than . Key considerations of the system design are presented, along with results on the operation of the micromirrors, an analysis of the optical design of the endoscope head, and remarks on the assessment of image quality.
ISSN:1017-9909
1560-229X
DOI:10.1117/1.2194890