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:
Jan. 17, 2012
Filed:
Jul. 20, 2010
Applicants:
Kumiko Matsui, Yokohama, JP;
Katsuya Watanabe, Yokohama, JP;
Inventors:
Kumiko Matsui, Yokohama, JP;
Katsuya Watanabe, Yokohama, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A microscope system includes a transmission illumination optical system having a light source and a condenser lens; a first dry objective having a magnification of from 20 or higher to 40 or lower and capable of viewing by at least one of a differential interference viewing method and a modulation contrast viewing method; and a second dry objective having a magnification of from 60 or higher to 100 or lower and capable of viewing by a differential interference viewing method; the first objective and the second objective being exchangeable.