Digital Position Encoding Of Galvanometer Scanner In A Laser Microscope

An account is given of a realization of a feedback method to digitize the analog position signal from a moving iron galvanometer. It is employed in a confocal scanning laser microscope for generating digital images. The photometric sampling has to be closely coupled to the position of a mirror that...

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Bibliographic Details
Published in:Optical Engineering 1988-09, Vol.27 (9), p.279818-279818
Main Author: Liljeborg, Anders
Format: Article
Language:English
Subjects:
Conventional optical microscopes
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Optical instruments, equipment and techniques
Physics
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Summary:An account is given of a realization of a feedback method to digitize the analog position signal from a moving iron galvanometer. It is employed in a confocal scanning laser microscope for generating digital images. The photometric sampling has to be closely coupled to the position of a mirror that scans a focused laser beam across a microscope specimen. Pictures with low geometric distortion are obtained up to the size 1024 x 1024 pixels.
ISSN:0091-3286
1560-2303
DOI:10.1117/12.7976767