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:
Feb. 09, 2021
Filed:
Nov. 16, 2018
Nikon Corporation, Tokyo, JP;
Shota Tsuchida, Tokyo, JP;
Kei Horie, Fujisawa, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
It is aimed to prevent excitation light from leaking and being detected by the detector in a fluorescence microscope. A microscope includes an illumination optical system configured to illuminate a specimen with excitation light, a detector configured to detect fluorescence emitted from the specimen, and an observation optical system configured to guide the fluorescence to the detector. The observation optical system includes an optical filter having a variable wavelength characteristic, a light dispersing element configured to disperse, into light beams, light that has passed through the optical filter, and a light block plate configured to block at least some of the light beams resulting from the dispersion by the light dispersing element.