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. 26, 2015
Filed:
Mar. 17, 2013
Atsushi Kirii, Tokyo, JP;
Atsushi Kirii, Tokyo, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A lens holder driving device includes a lens holder in which a lens assembly is mounted, a driving coil fixed to the lens holder at outside circumference thereof, an outer yoke including an outer hollow cylindrical portion and an ring-shaped end portion disposed an upper end of the outer hollow cylindrical portion, a magnet disposed to an inner wall surface of the outer hollow cylindrical portion so as to be opposite to the driving coil, an elastic member supporting the lens holder in a direction of an optical axis shiftably, and a base disposed at a lower side of the lens holder. The lens holder driving device includes a contact area reduction arrangement reducing a contact area between the ring-shaped end portion of the outer yoke and an upper end portion of the lens holder.