Laser scanning microscope

Details Laser scanning microscope Laser scanning microscope

2000-10-02

2003-10-07

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

Reexamination Certificate

active

06631226

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a laser scanning microscope.
Handbook of Biological Confocal Microscopy, Second Edition, Plenum Press, New York and London 1995,
page 519, FIG.
6
: Fiber coupling optics, page 595, FIG.
14
: Telecentric system for a plurality of
detection beam paths;
U.S. Pat. No. 5,283,433Coupling optics for detection beam paths;
DE 4323129 A1, column 6: Confocal apertures which can be centered and varied with respect to diameter;
U.S. Pat. No. 5,444,528, U.S. Pat. No. 5,377,003, U.S. Pat. No.5,317,379, U.S. Pat. No. 5,21,484: AOTF;
U.S. Pat. No. 5,081,350, EP 283256 A1, WO 90/00754: Fiber connection between laser and scanning unit.
OBJECT AND SUMMARY OF THE INVENTION
It is an object to provide an improved laser scanning microscope.
In accordance with the invention, an arrangement and corresponding method are provided for coupling radiation, preferably laser radiation, into a scanning head with a scanning unit in at least two dimensions. The radiation is focussed on an object via a microscope objective via at least one light-conducting fiber which is coupled with the scanning head. A collimator is arranged downstream of the fiber end at the scanning head for collimating the radiation exiting in a divergent manner at the fiber end.


REFERENCES:
patent: 5216484 (1993-06-01), Chao et al.
patent: 5283433 (1994-02-01), Tsien
patent: 5317379 (1994-05-01), Ryan et al.
patent: 5377003 (1994-12-01), Lewis et al.
patent: 5444528 (1995-08-01), Puschell
patent: 5903688 (1999-05-01), Engelhardt et al.
patent: 5938617 (1999-08-01), Vo-Dinh
patent: 6222961 (2001-04-01), Engelhardt et al.
patent: 195 17 670 (1995-12-01), None
patent: 0 283 256 (1988-09-01), None
*English Abstract of DE 195 17 670 A1.

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