The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 05, 2026

Filed:

Mar. 07, 2024
Applicant:

Carl Zeiss Microscopy Gmbh, Jena, DE;

Inventors:

Nils Langholz, Jena, DE;

Markus Sticker, Jena, DE;

Thomas Nobis, Jena, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 21/36 (2006.01); G02B 21/04 (2006.01);
U.S. Cl.
CPC ...
G02B 21/367 (2013.01); G02B 21/04 (2013.01); G02B 21/361 (2013.01);
Abstract

According to a method for autofocusing on a microscopic sample, measurement light having a local structure is generated. The measurement light is coupled into the microscope beam path, whereby the measurement light is incident on, and reflected by, the sample. The measurement light reflected by the sample is output from the microscope beam path and split among a plurality of component beam paths which pass over optical paths of different lengths to image the reflected measurement light, whereby a plurality of measurement images assigned to different focus positions on the microscope beam path are obtained. At least the measurement image which comes closest to an ideal image of the local structure of the measurement light is selected. Depending on the focus position assigned to the selected measurement image, a focus position to be used on the microscope beam path for the purpose of microscopic imaging of the sample is set.


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