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

Hansjörg Albrecht*, Panagiotis G. Papageorgas, Dimitris Maroulis, Nikiforos Theofanous, Stavros Karkanis, Bernd Wagner, Marc Schurr, Christian Depeursinge, Arianna Menciassi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

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 16 line pairs/mm is achieved for a working distance of 50 mm while the focal depth is larger than 5 mm. 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.

Original languageEnglish (US)
Article number023003
JournalJournal of Electronic Imaging
Volume15
Issue number2
DOIs
StatePublished - Apr 1 2006

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Computer Science Applications
  • Electrical and Electronic Engineering

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