Title:
OPTICAL DEVICE FOR SCANNING A BEAM IN TWO AXES THAT ARE SUBSTANTIALLY PERPENDICULAR TO EACH OTHER
Document Type and Number:
WIPO Patent Application WO1998028640
Kind Code:
A3
Abstract:
The invention relates to an optical device for scanning a beam in two axes that are substantially perpendicular to each other, for use in particular in confocal laser scan microscopes, and aims to avoid serious image defects. The invention is characterized in that it has three mirrors (1, 2; 3) of which two mirrors (1, 2) are fixedly positioned at an angle to each other so that they rotate together around the y-axis and in so doing rotate the beam (4) around a pivot point located on the axis of rotation (x-axis) of the third mirror (3) which rotates by itself.
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Inventors:
ENGELHARDT JOHANN (DE)
ULRICH HEINRICH (DE)
ULRICH HEINRICH (DE)
Application Number:
PCT/DE1997/003014
Publication Date:
October 08, 1998
Filing Date:
December 23, 1997
Export Citation:
Assignee:
LEICA LASERTECHNIK (DE)
ENGELHARDT JOHANN (DE)
ULRICH HEINRICH (DE)
ENGELHARDT JOHANN (DE)
ULRICH HEINRICH (DE)
International Classes:
G02B21/00; G02B26/10; (IPC1-7): G02B/
Foreign References:
| US4874215A | 1989-10-17 | |||
| US5225923A | 1993-07-06 |
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