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:
Dec. 01, 2020
Filed:
Nov. 10, 2017
Applicant:
Olympus Corporation, Hachioji-shi, JP;
Inventor:
Kenji Kawasaki, Tokyo, JP;
Assignee:
OLYMPUS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 21/06 (2006.01); G02B 21/16 (2006.01);
U.S. Cl.
CPC ...
G02B 21/06 (2013.01); G02B 21/16 (2013.01);
Abstract
A microscope illumination device includes a white LED light source, and an illumination optical system that includes an aperture stop on a plane on which light from the white LED light source is condensed. The white LED light source includes a board, a plurality of LED chips that are arranged on the board and that each emit excitation light, and a phosphor layer that is provided so as to cover the plurality of LED chips and that includes at least three types of phosphors. The plurality of LED chips are arranged so as to be projected into an aperture of the aperture stop.