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:
Apr. 20, 2021
Filed:
Nov. 05, 2019
Nikon Corporation, Tokyo, JP;
The Regents of the University of California, San Francisco, CA (US);
Yumiko Ouchi, Yokohama, JP;
Hisao Osawa, Kashiwa, JP;
Mats G. L. Gustafsson, Sterling, VA (US);
David A. Agard, Burlingame, CA (US);
NIKON CORPORATION, Tokyo, JP;
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, San Francisco, CA (US);
Abstract
Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.