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:
Oct. 09, 2012
Filed:
Jun. 24, 2010
Masahito Dohi, Tokyo, JP;
Kenji Kawasaki, Tokyo, JP;
Masahito Dohi, Tokyo, JP;
Kenji Kawasaki, Tokyo, JP;
Olympus Corporation, Tokyo, JP;
Abstract
An illumination optical system which irradiates a sample surface with light through an illuminating lens includes: a light source; a condensing optical system receiving the light emitted from the light source; and a lens array optical system including a first lens array surface and a second lens array surface each formed by a plurality of lens elements. The first lens array surface has a conjugate relation with a back focal position of the illuminating lens. The second lens array surface is placed at a back focal position of the lens array optical system, has a conjugate relation with a pupil position of the illuminating lens, and the light source and the condensing optical system are arranged to form an image of the light source on the first lens array surface.