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.
Patent No.:
Date of Patent:
Aug. 10, 2021
Filed:
Nov. 19, 2018
Applicant:
Olympus Corporation, Hachioji, JP;
Inventor:
Satoshi Watanabe, Tokyo, JP;
Assignee:
OLYMPUS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/04 (2006.01); G02B 21/00 (2006.01); G03H 1/08 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0443 (2013.01); G02B 21/00 (2013.01); G02B 21/0008 (2013.01); G03H 1/041 (2013.01); G03H 1/0402 (2013.01); G03H 1/0486 (2013.01); G03H 1/0866 (2013.01); G03H 2001/0428 (2013.01); G03H 2001/0447 (2013.01); G03H 2001/0452 (2013.01); G03H 2223/53 (2013.01);
Abstract
An illumination unit emits illumination light to a specimen. An image sensor includes multiple pixels arranged in a two-dimensional manner on a photoelectric surface. The image sensor captures an image of a magnitude distribution of an interference pattern formed due to the illumination light that has interacted with the specimen. A limiter limits at least one from among the spatial frequency of the interference pattern formed on the photoelectric surface and the incident angle of the light input to the photoelectric surface.