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:
Sep. 12, 2017
Filed:
Oct. 27, 2014
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, , JP;
Abstract
An optical scanner includes: a movable plate which includes a light reflection unit which reflects light; a first torsion bar spring which oscillatably supports the movable plate around a first axis; a displacement member which is connected to the first torsion bar spring; a second torsion bar spring which oscillatably supports the displacement member around a second axis intersecting with the first axis; a coil provided on the displacement member; and a magnet which is provided spaced apart from the displacement member, and generates a magnetic field to be inclined with respect to the first axis and the second axis and to act on the coil, wherein the displacement member includes a frame surrounding the movable plate, and a damper which has a smaller thickness than that of the frame and extends in a direction intersecting with a direction in which the second torsion bar spring extends from the frame.