Patent ID: 11971531
Assignee: LEICA MICROSYSTEMS CMS GMBH
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for determining a thickness of a cover slip or object carrier in a microscope, which has an objective facing toward a sample chamber, wherein two optical media border two opposing surfaces of the cover slip or object carrier in the sample chamber and form two partially reflective interfaces, which are arranged at different distances from the objective, the method comprising:
deflecting a measurement light beam by the objective with oblique incidence on the cover slip or object carrier;
generating two reflection light beams spatially separated from one another by the measurement light beam being partially reflected on each of the two partially reflective interfaces;
receiving the two reflection light beams by the objective and conducting the two reflection light beams onto a position-sensitive detector;
registering the incidence locations of the two reflection light beams on the position-sensitive detector; and
determining the thickness of the cover slip or object carrier based on the registered incidence locations of the two reflection light beams.