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:
Jun. 08, 2010
Filed:
Jan. 25, 2006
Masayuki Mizusawa, Hachioji, JP;
Masayuki Mizusawa, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
There are provided an illumination optical apparatus and an optical apparatus using this illumination optical apparatus that are capable of efficiently collecting light emitted from a light-emitting section for illumination with less illumination nonuniformity, without having to employ a complicated structure. There are provided a light-emitting sections; a lens system for converting a diverging beam emitted from the light-emitting section into a beam of collimated light; an afocal optical system for adjusting the cross-sectional area of a beam of collimated light obtained by the lens array; a fly-eye lens for forming a plurality of light-source images from the collimated light whose cross-sectional area is adjusted by the afocal optical system; and a Koehler illumination optical system that uses the plurality of light-source images formed by the fly-eye lens as a light source.