Patents Assigned to Jiangxi Leiyuan Permanent Magnetic Materials Co., Ltd.
  • Patent number: 9513455
    Abstract: A lens driving device and the lens holder cannot tilt when the lens holder moves up due to the coil energized. The inside holding portion (14a) of the front spring member (14A) is connected to the surface of the +Z side of the front connection portion (13b) of the lens holder (13), the inside holding portion (14a) of the rear spring member (14B) is connected to the surface of the +Z side of the rear connection portion (13c), the outside diameter of which is larger than the outside diameter of the front connection portion (13b), the outside holding portion (14b) is connected with the base (12) in the manner of shifting the inside holding portion (14a) towards the ?Z side, so as to apply the pressure of the ?Z-axis direction to the lens holder (13).
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 6, 2016
    Assignee: Jiangxi Leiyuan Permanent Magnetic Materials Co., Ltd.
    Inventor: Terajima Kokichi
  • Publication number: 20150103422
    Abstract: A lens driving device can not increase the manufacturing cost, and the lens holder can not tilt when the lens holder moves up due to the coil energized. The inside holding portion (14a) of the front spring member (14A) is connected to the surface of the +Z side of the front connection portion (13b) of the lens holder (13), the inside holding portion (14a) of the rear spring member (14B) is connected to the surface of the +Z side of the rear connection portion (13c), the outside diameter of which is larger than the outside diameter of the front connection portion (13b), the outside holding portion (14b) is connected with the base (12) in the manner of shifting the inside holding portion (14a) towards the ?Z side, so as to apply the pressure of the ?Z-axis direction to the lens holder (13).
    Type: Application
    Filed: January 13, 2014
    Publication date: April 16, 2015
    Applicant: Jiangxi Leiyuan Permanent Magnetic Materials Co., Ltd.
    Inventor: Terajima Kokichi
  • Patent number: 8849106
    Abstract: The present invention provides a shake correction device which can not generate the hysteresis phenomenon and can suppress unnecessary resonance and improve endurance with respect to drop impact. In this shake correction device, the eddy current induction plate 16a of +Z side is opposite to and has a gap with the surface (14a) of the +Z side of the permanent magnet (14) which is arranged to wind around the optical axis at an interval of 90 degree in the Z direction, the eddy current induction plate 16b of radial direction is opposite to and has a space with the surface (14b) of the outside in the radial direction, and the eddy current induction plate 16c of the periphery direction is opposite to and has a gap with the surface (14c) in the periphery direction.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 30, 2014
    Assignee: Jiangxi Leiyuan Permanent Magnetic Materials Co., Ltd.
    Inventor: Terajima Kokichi