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:
May. 15, 2012
Filed:
Dec. 21, 2009
Sumio Kawai, Hachioji, JP;
Takashi Miyazawa, Hachioji, JP;
Sumio Kawai, Hachioji, JP;
Takashi Miyazawa, Hachioji, JP;
Olympus Corporation, , JP;
Olympus Imaging Corp., , 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. A ratio between a first bending rigidity along the X-axis of at least the dust-screening member and vibrating member in the section orthogonal to the X-axis at the intersection of the X- and Y-axes, to a second bending rigidity along the Y-axis of at least the dust-screening member and vibrating member in the section orthogonal to the Y-axis at the intersection is 0.4 or more, but less than 1.0.