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. 29, 2009
Filed:
Sep. 26, 2006
Yasuo Nishikawa, Nagoya, JP;
Nobuaki Asai, Hashima-gun, JP;
Yasuo Nishikawa, Nagoya, JP;
Nobuaki Asai, Hashima-gun, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An apparatus for use in optical scanning is disclosed which vibrates at least a part of a vibrating body having a light-reflective surface, to thereby allow light, upon entry, to be reflected from the light-reflective surface in varying directions. The vibrating body includes: (a) a reflective mirror having the light-reflective surface; and (b) an integral spring extending from the reflective mirror and being excited to generate at least a torsional vibration. The vibrating body has vibrational characteristics in which whether or not a resonant frequency of the torsional vibration and a resonant frequency of a disturbing vibration are equal to each other depends upon a shape-defining parameter for defining a shape of the integral spring extending lengthwise. The shape-defining parameter is pre-set to fall within a range allowing the resonant frequency of the torsional vibration and the resonant frequency of the disturbing vibration to be different from each other.