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:
Apr. 11, 2006
Filed:
Nov. 14, 2003
Tatsuo Takanashi, Tokyo, JP;
Tatsuo Takanashi, Tokyo, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A shutter/filter unit as an optical apparatus includes a shutter actuator, a filter actuator, a shutter drive ring, two shutter blades, and one ND filter, which are connected to a driving source body in series. The shutter blades are rotationally driven via the shutter drive ring so as to open and shut by the shutter actuator, and the ND filter is back and forth and rotationally driven by the filter actuator directly. The shutter blades and the ND filter are coaxially supported to a blade-support pin, and are rotationally driven independently. According to this apparatus, a conventional optical apparatus having a light-exclusion member and a light-attenuating member housed therein is further miniaturized so as to contribute miniaturization to an image-pickup apparatus, such as a camera, having the optical apparatus mounted thereon.