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:
Mar. 28, 2017

Filed:

Sep. 28, 2012
Applicants:

Fei Company, Hillsboro, OR (US);

Till I.d. Gmbh, Grafelfing, DE;

Inventors:

Rainer Uhl, Grafelfing, DE;

Martin Schropp, München, DE;

Assignee:

FEI COMPANY, Hillsboro, OR (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 21/00 (2006.01); G02B 21/06 (2006.01); G02B 21/14 (2006.01); G02B 21/36 (2006.01); G02B 27/58 (2006.01); G01N 21/64 (2006.01);
U.S. Cl.
CPC ...
G02B 21/06 (2013.01); G02B 21/0032 (2013.01); G02B 21/14 (2013.01); G02B 21/367 (2013.01); G02B 27/58 (2013.01); G01N 21/6458 (2013.01);
Abstract

A microscope has an objective, a light source illuminating a sample over an illumination beam path, an arrangement producing a flat illumination pattern which is structured in both spatial directions on the sample, a surface detector detecting light coming over one picture beam path, an arrangement shifting the illumination pattern on the sample in one displacement direction, and a control unit taking one picture at a time of the light which was detected by the detector as phase picture in different positions of the pattern along the displacement direction and to computationally reconstruct from these phase pictures an overall picture of the illuminated sample region. The displacement direction is oblique to the main axes of symmetry of the illumination pattern and depending on the illumination pattern is chosen such that the number of phase pictures which is necessary for the picture reconstruction corresponds to the theoretically minimally required value.


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