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. 28, 2012
Filed:
Dec. 21, 2009
Sumio Kawai, Hachioji, JP;
Takashi Miyazawa, Hachioji, JP;
Sumio Kawai, Hachioji, JP;
Takashi Miyazawa, Hachioji, JP;
Olympus Imaging Corp., , JP;
Olympus Corporation, , JP;
Abstract
A vibrating device includes a drive unit configured to drive a vibrating member to produce vibration Z (x, y) at a dust-screening member, the vibration being expressed as follows:()=()·cos(γ)+()·sin(γ)where Z (x, y) is vibration at a given point P (x, y) on the dust-screening member, m and n are positive integers including 0, indicating the order of natural vibration corresponding to a vibrational mode, γ is +π/4 or ranges from −π/8 to −π/4. The dust-screening member is shaped such that the ratio of length of either short side to either long side of a virtual rectangle is 0.9 or more, but less than 1, the virtual rectangle having the same area as the dust-screening member and having sides including the one side which the dust-screening member has.