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:
Aug. 02, 2005
Filed:
Feb. 03, 2003
Applicant:
Kentaro Sekiyama, Hachioji, JP;
Inventor:
Kentaro Sekiyama, Hachioji, JP;
Assignee:
Olympus Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F026/00 ; G02F001/13 ; G02B027/00 ; G02B013/00 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to an optical system that can be operated with low power consumptions, reduced noises and fast responses, is simplified in mechanical structure and of reduced outer diameter and compact size, and is capable of focusing and zooming. This optical system comprises a rotationally symmetric lens group and an optical element having variable optical properties, whereby focusing or zooming can be performed. Focusing or zooming can be performed by use of a plurality of optical elements having variable optical properties, wherein at least one of the optical elements is configured to a free-form surface shape.