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:
Sep. 07, 2010
Filed:
Aug. 21, 2007
Applicant:
Mitsuaki Shimo, Osaka, JP;
Inventor:
Mitsuaki Shimo, Osaka, JP;
Assignee:
Konica Minolta Opto, Inc., Hachioji-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 17/00 (2006.01); G02B 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical system has a plurality of optical surfaces and an aperture stop, and has an eccentric reflective surface as at least one of the plurality of optical surfaces. For different conjugate distances, focusing for keeping a position of an entire image surface substantially constant while keeping substantially constant an axial imaging position and an angle of incidence of an axial principal ray on an image surface is performed by parallel and rotational movement of a group provided as a focusing group having at least one surface as the eccentric reflective surface.