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Proceedings Paper

Confocal microscanner technique for endoscopic vision
Author(s): Rijk Schuetz; Klaus Doerschel; Gerhard J. Mueller
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Paper Abstract

The intention and first results of a research project called DELAS (diagnostic endo laser scanner) are presented. This paper is focused on the technology development of a scanning imaging method for endoscopy. This work is granted by the Bundesministerium fur Bildung, Wissenschaft, Forschung und Technologie (BMBF, FKZ 13 N 6796). The current endoscopic imaging technique is restricted to the visible spectral range. An extension of the usable wavelength range leads to new application fields of endoscopes, such as the use of fluorescence or other spectroscopic methods, e.g. to perform diagnostic investigations. The aim of the project is to investigate the feasibility of a scanning imaging technique on the basis of microsystem technology. The optical components are realized by using lithographic methods in addition to single fibers and microscanning mirrors being applied to avoid the spectral limitations of conventional image guides. The integration of the microscanning device into an imaging setup of an endoscope is planned in a further project part. Initially, an experimental setup using conventional components has to be realized in order to simulate a situation considering the requirements of an endoscopic utilization. Using this setup the verification of the imaging method regarding potential applications and an improvement of the imaging parameters are performed. These investigations lead to specific requirements of a microscanning device for a future prototype manufactured by using silicon technologies. First results of the investigations are discussed in terms of lateral and depth resolution, image distortion, and non linear behavior of the scanning mirrors. They are compared to the results obtained by conventional microscopy and evaluated with regard to the requirements of diagnostic applications.

Paper Details

Date Published: 29 December 1997
PDF: 11 pages
Proc. SPIE 3197, Optical Biopsies and Microscopic Techniques II, (29 December 1997); doi: 10.1117/12.297970
Show Author Affiliations
Rijk Schuetz, Laser- und Medizin Technologie gGmbH (Germany)
Klaus Doerschel, Universitatsklinikum Benjamin Franklin der Freien Univ. Berlin (Germany)
Gerhard J. Mueller, Laser- un Medizin Technologie gGmbH and Freien Univ. Berlin (Germany)


Published in SPIE Proceedings Vol. 3197:
Optical Biopsies and Microscopic Techniques II
Irving J. Bigio; Herbert Schneckenburger; Jan Slavik; Katarina Svanberg; Pierre M. Viallet, Editor(s)

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