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:
Dec. 21, 2004
Filed:
Feb. 05, 2003
Kimihiko Nishioka, Hachioji, JP;
Eiji Yasuda, Hachioji, JP;
Kentaro Sekiyama, Hachioji, JP;
Tetsuo Nagata, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
The invention relates to an optical system or apparatus such as a lens system capable of focus control and a variable-focus lens, which has reduced power consumptions, ensures noiseless operation and fast response and contributes to cost reductions for the reason of simplified structure. Specifically, the invention provides an optical apparatus comprising an element having variable optical properties and an image plane . To correct the optical apparatus for movement of the image-formation surface of an optical system in association with a change in the element having variable optical properties, the image plane is placed in the range of movement of the image-formation surface in association with the change in the element having variable optical properties.