LENS DRIVING DEVICE, AND CAMERA MODULE AND OPTICAL DEVICE INCLUDING SAME

Title:

LENS DRIVING DEVICE, AND CAMERA MODULE AND OPTICAL DEVICE INCLUDING SAME

Document Type and Number:

WIPO Patent Application WO/2021/187943

Kind Code:

A1

Abstract:

One embodiment comprises: a cover member including an upper plate and a side plate connected to the upper plate; a housing arranged in the cover member; a bobbin arranged in the housing; a coil coupled to the bobbin; a magnet which is arranged in the housing and faces the coil; a base arranged under the bobbin; and a first buffer unit arranged on the top surface of the bobbin corresponding to or facing the upper plate of the cover member, wherein the cover member includes a protrusion part extending in the direction toward the bobbin from the upper plate, and the distance in the optical axis direction between the protrusion part and the top surface of the bobbin is no greater than the distance in the optical axis direction between the first buffer unit and the inner surface of the upper plate of the cover member.

Inventors:

LEE JUN TAEK (KR)
MUN CHUNG MIN (KR)
SHIN MIN JUNG (KR)

Application Number:

PCT/KR2021/003426

Publication Date:

September 23, 2021

Filing Date:

March 19, 2021

Export Citation:

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Assignee:

LG INNOTEK CO LTD (KR)

International Classes:

G03B17/12; G02B7/04; G03B5/02; G03B11/00; G03B13/36; H04N5/217; H04N5/225

Domestic Patent References:

WO2018016790A1

2018-01-25

Foreign References:

KR20190136269A	2019-12-10
KR20140119360A	2014-10-10
KR20140078256A	2014-06-25
US20140362284A1	2014-12-11

Other References: