Invention Grant
- Patent Title: Lens drive apparatus including damper compound suppressing undesired resonance
-
Application No.: US14832009Application Date: 2015-08-21
-
Publication No.: US09778481B2Publication Date: 2017-10-03
- Inventor: Keiichi Sato , Makoto Ariji , Masayoshi Sugawara , Akihiro Moriya
- Applicant: MITSUMI ELECTRIC CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: MITSUMI ELECTRIC CO., LTD.
- Current Assignee: MITSUMI ELECTRIC CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2011-182462 20110824; JP2012-081688 20120330
- Main IPC: G02B27/64
- IPC: G02B27/64 ; G02B7/09 ; H04N5/225 ; G02B7/08 ; G03B3/10 ; G03B5/00

Abstract:
A lens drive apparatus includes an image stabilizer portion moves an auto-focusing lens driving portion in first and second directions orthogonal to an optical axis and perpendicular to each other, and the image stabilizer portion includes a fixed member disposed apart from the auto-focusing lens driving portion in a direction of the optical axis, a plurality of suspension wires each comprising an end fixed to the fixed member at an outer region thereof, a narrowing portion that is disposed between the fixed member and the auto-focusing lens driving portion and that narrows part of a gap between the fixed member and the auto-focusing lens driving portion, and a damper compound that is disposed at the narrowed part of the gap between the fixed member and the auto-focusing lens driving portion and that suppress undesired resonance in the direction of the optical axis of the auto-focusing lens driving portion.
Public/Granted literature
- US20150355477A1 LENS DRIVE APPARATUS INCLUDING DAMPER COMPOUND SUPPRESSING UNDESIRED RESONANCE Public/Granted day:2015-12-10
Information query