Lens driving device, camera module and optical instrument

Patent metadata

Field	Value
Publication number	US-12259636-B2
Application number	US-202117476805-A
Country	US
Kind code	B2
Filing date	Sep 16, 2021
Priority date	Feb 10, 2017
Publication date	Mar 25, 2025
Grant date	Mar 25, 2025

Abstract

A camera module including a first camera module and a second camera module including a second side that faces a first side of the first camera module, wherein the first camera module includes a housing; a bobbin disposed inside the housing; a coil disposed on the bobbin; and a magnet arranged at a side of the housing and facing the coil, wherein the magnet is disposed biased toward a center line of the side of the housing.

First claim

What is claimed is:

1. A camera module comprising:
a first camera module; and
a second camera module including a second side that faces a first side of the first camera module,
wherein the first camera module comprises:
a housing;
a bobbin disposed inside the housing;
a coil disposed on the bobbin; and
a magnet arranged at a side of the housing and facing the coil,
wherein the magnet is disposed biased toward a center line of the side of the housing, and

wherein the magnet comprises:
an upper surface;
a lower surface;
an inner surface facing the coil;
an outer surface disposed on a reverse side to the inner surface; and
two side surfaces connecting the inner surface and the outer surface,
wherein a depressed part is located on the side surface of the magnet, among the two side surfaces of the magnet, that is disposed on the first side of the first camera module, the depressed part being a recessed portion of the side surface of the magnet.

2. A camera module comprising:
a first camera module; and
a second camera module including a second side that faces a first side of the first camera module,
wherein the first camera module comprises:
a housing;
a bobbin disposed inside the housing;
a coil disposed on the bobbin; and
a magnet arranged at a side of the housing and facing the coil,
wherein the magnet is disposed biased toward a center line of the side of the housing,

wherein the housing includes a first side surface facing the second camera module and a second side surface opposite to the first side surface, and
wherein the magnet is biased toward the second side surface rather than the first side surface.

3. A camera module comprising:
a first camera module; and
a second camera module including a second side that faces a first side of the first camera module,
wherein the first camera module comprises:
a housing;
a bobbin disposed inside the housing;
a coil disposed on the bobbin;
a magnet arranged at a side of the housing and facing the coil;
an upper elastic member disposed above the bobbin and coupled to the bobbin and the housing;
a lower elastic member disposed below the bobbin and coupled to the bobbin and the housing; and
a base disposed below the housing,
wherein the magnet is disposed biased toward a center line of the side of the housing, and

wherein the lower elastic member is formed in a pair spaced apart from each other and electrically connected to the coil.

4. A camera module comprising:
a first camera module; and
a second camera module including a second side that faces a first side of the first camera module,
wherein the first camera module comprises:
a housing;
a bobbin disposed inside the housing;
a coil disposed on the bobbin; and
a magnet arranged at a side of the housing and facing the coil,
wherein the magnet is disposed biased toward a center line of the side of the housing, and

wherein the second camera module comprises:
a second housing;
a second bobbin disposed inside the second housing of the second camera module;
a second base disposed below the second housing of the second camera module;
a second magnet disposed in the second housing of the second camera module;
a first coil disposed on an outer circumferential surface of the second bobbin of the second camera module and facing the second magnet of the second camera module; and
a second coil disposed between the second housing of the second camera module and the second base of the second camera module and facing the second magnet of the second camera module,
wherein the second magnet of the second camera module comprises four magnets and is disposed at the corner of the second housing of the second camera module.

5. The camera module according to claim 1 , wherein the first camera module is an AF (Auto Focus) module, and the second camera module is an OIS (Optical Image Stabilization) module.

6. A camera module comprising:
a first camera module; and
a second camera module including a second side that faces a first side of the first camera module,
wherein the first camera module comprises:
a housing;
a bobbin disposed inside the housing;
a coil disposed on the bobbin; and
a magnet arranged at a side of the housing and facing the coil,
wherein the magnet is disposed biased toward a center line of the side of the housing, and

wherein the housing includes a support portion for supporting an inner surface of the magnet.

7. The camera module according to claim 6 , wherein the support portion is disposed to face a guide portion.

8. The camera module according to claim 4 , wherein an inner surface of the second housing is provided with a magnet coupling portion formed by being partly depressed outward and in which the second magnet is disposed.

9. The camera module according to claim 1 , wherein the first camera module and the second camera module are spaced apart from each other by a predetermined distance.

10. An optical instrument comprising:
a main body;
a dual camera module disposed in the main body and configured to photograph an image of a subject; and
a display unit disposed in the main body and outputting an image photographed by the dual camera module,
wherein the dual camera module includes a first camera module and a second camera module including a second side that faces a first side of the first camera module,
wherein the first camera module comprises:
a housing;
a bobbin disposed inside the housing;
a coil disposed on the bobbin; and
a magnet arranged at a side of the housing and facing the coil,
wherein the magnet is disposed biased toward a center line of the side of the housing, and

wherein the housing includes a first side surface facing the second camera module and a second side surface opposite to the first side surface, and
wherein the magnet is biased toward the second side surface rather than the first side surface.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Sung Guk
• Lee Seong Min
• Min Sang Jun
• Jung Tae Jin

Classifications

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/55

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• H04N23/51

  Housings · CPC title

• G03B2205/0069

  using electromagnetic actuators, e.g. voice coils · CPC title