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:
Nov. 29, 2022
Filed:
Sep. 11, 2017
Shanghai Billu Electronics Co., Ltd., Shanghai, CN;
Shanghai Billu Electronics Co., Ltd., Shanghai, CN;
Abstract
A lens drive device, including a lens support, a coil winded at a periphery of the lens support; a screening can is covered outside the lens support; a driving magnets is respectively provided on opposite two inner sidewalls of the screening can; a Printed Circuit Board board (PCB board) is provided on a sidewall at another side of the screening can; a Hall chip is provided on the PCB board; a Hall magnet back gasket and a Hall magnet are provided at corresponding positions of the lens support; and the PCB board and the Hall chip thereon and the Hall magnet form a lens position detection unit. Since the driving magnets and the Hall magnet are not hindered to each other in a configuration structure, no obstacle is produced to assembly work, and the further miniaturization and thinning of the lens drive device also become possible.