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:
Nov. 20, 2018
Filed:
Oct. 29, 2015
Olympus Corporation, Tokyo, JP;
Yoshimasa Suzuki, Kawasaki, JP;
Kazuo Kajitani, Hachioji, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
A sample observation device includes an illumination optical system and an observation optical system, and the illumination optical system includes a light source, a condenser lens and an aperture member, and the observation optical system includes an objective lens and an imaging lens, and the aperture member has a light-shielding part or a darkening part and a transmission part, and the aperture member is disposed so that the light-shielding part or the darkening part includes an optical axis of the illumination optical system, and an image of an inner edge of the transmission part is formed inside of an outer edge of the pupil of the objective lens, and an image of an outer edge of the transmission part is formed outside of the outer edge of the pupil of the objective lens.