| 摘要 |
A confocal microscope has a specimen holding device for holding a specimen ( 18 ). The specimen ( 18 ) is illuminated by an illuminating unit ( 10 ). An optics unit ( 12 ) serves to direct radiation produced by the illuminating unit ( 10 ) toward the specimen ( 18 ) and to direct the radiation emitted by the specimen toward a detector unit ( 20 ). The confocal microscope also comprises an aperture diaphragm ( 34 ) that is placed in the beam path in front of the detector unit ( 20 ). In addition, a focusing lens ( 30 ) is provided in the beam path in front of the aperture diaphragm ( 34 ). The focusing lens ( 30 ) can be moved in order to adjust the confocal microscope, for example, in order to compensate for thermal stresses.
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