KR20230015136A - Camera actuator and camera module comprising the same - Google Patents

Abstract

An embodiment of the present invention discloses a camera actuator, which comprises: a housing; a mover disposed within the housing; a tilting guide unit disposed between the housing and the mover; a driving unit disposed in the housing and driving the mover; an elastic member bringing the tilting guide unit into close contact with the mover; and a damper member coupled to the elastic member, the mover, and at least one group of the elastic member and the housing.

Description

Camera actuator and camera module including the same {CAMERA ACTUATOR AND CAMERA MODULE COMPRISING THE SAME}

The present invention relates to a camera actuator and a camera module including the same.

A camera is a device that takes a picture or video of a subject and is mounted on a portable device, a drone, or a vehicle. The camera module has an Image Stabilization (IS) function that corrects or prevents image shaking caused by user movement to improve image quality, and an image stabilization (IS) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens. It may have an auto focusing (AF) function and a zooming function for photographing by increasing or decreasing the magnification of a distant subject through a zoom lens.

On the other hand, the resolution of the image sensor increases as it goes to higher pixels, so the size of the pixels decreases. As the pixels become smaller, the amount of light received during the same time decreases. Therefore, in a high-pixel camera, image shaking caused by hand shake caused by a slower shutter speed in a dark environment may be more severe. As a representative image stabilization (IS) technology, there is an optical image stabilizer (OIS) technology, which is a technology for correcting motion by changing a path of light.

According to general OIS technology, camera movement is detected through a gyro sensor, etc., and based on the detected movement, a lens may be tilted or moved, or a camera module including a lens and an image sensor may be tilted or moved. there is. When a lens or a camera module including a lens and an image sensor is tilted or moved for OIS, a space for tilting or moved around the lens or camera module needs to be additionally secured.

Meanwhile, an actuator for OIS may be disposed around the lens. At this time, the actuator for OIS may include two axes perpendicular to the optical axis Z, that is, an actuator responsible for X-axis tilting and an actuator responsible for Y-axis tilting.

However, there are significant restrictions on space for arranging actuators for OIS according to the needs of ultra-slim and subminiature camera modules, and the camera module itself including a lens or a lens and an image sensor has enough space to tilt or move for OIS It can be difficult to guarantee. In addition, it is desirable for a high-pixel camera to increase the size of the lens in order to increase the amount of light received, but there may be a limit to increasing the size of the lens due to the space occupied by the actuator for OIS.

In addition, when the zooming function, the AF function, and the OIS function are all included in the camera module, there is also a problem of causing magnetic field interference because the magnet for OIS and the magnet for AF or zoom are disposed close to each other.

In addition, there is a problem that oscillation occurs during the OIS function.

A technical problem to be solved by the present invention is to provide a camera actuator that suppresses oscillation by the elastic member through a damper member while having a holding force in the OIS actuator by using the elasticity of the elastic member.

In addition, it is possible to provide a camera actuator with improved reliability and durability through coupling force between various components and the elastic member by the damper member.

In addition, it is to provide a camera actuator applicable to ultra-slim, subminiature and high-resolution cameras.

The problem to be solved in the embodiment is not limited thereto, and it will be said that the solution to the problem described below or the purpose or effect that can be grasped from the embodiment is also included.

A camera actuator according to an embodiment of the present invention includes a housing; a mover disposed within the housing; a tilting guide part disposed between the housing and the mover; and a driving unit disposed in the housing and driving the mover. an elastic member for bringing the tilting guide part into close contact with the mover; and a damper member coupled to at least one group of the elastic member, the mover, and the elastic member and the housing.

The mover may include a first member including a seating groove accommodating the tilting guide unit, accommodated in the seating groove, disposed outside the tilting guide unit, and coupled to the mover.

A second member, at least a portion of which is disposed between the tilting guide part and the first member and coupled to the housing, may be included.

The first member and the second member may be accommodated in the seating groove.

The elastic member may include a first junction connected to the housing; a second bonding portion connected to the first member; and a connection portion connecting the first joint portion and the second joint portion.

The mover includes a plurality of mover protrusions protruding toward the elastic member, and the damper member is disposed in a mover groove located between the plurality of mover protrusions and may come into contact with the mover.

At least a portion of the connecting portion may be disposed within the mover groove and may contact the damper member.

The protrusion may include a first protrusion and a second protrusion spaced apart from each other along a first direction, the connecting portion may pass through the mover groove, and the mover groove may be positioned between the first protrusion and the second protrusion. can

The protrusion may include a third protrusion disposed inside the mover groove.

A height of the third protrusion may be lower than a height of the first protrusion or the second protrusion.

The first member may include a member protrusion disposed adjacent to the connecting portion.

The member protrusion may overlap at least a portion of the connecting portion in an optical axis direction, and at least a portion of the connecting portion may be curved to correspond to an outer surface of the member protrusion.

The damper member may be coupled to the member protrusion and the connecting portion.

The member protrusion may be positioned between the first joining portion and the second joining portion.

The second member may include a housing protrusion disposed adjacent to the connecting portion.

The housing protrusion may at least partially overlap the connecting portion in an optical axis direction.

At least a portion of the connecting portion may be curved to correspond to an outer surface of the housing protrusion.

The damper member may be coupled to the housing protrusion and the connecting portion.

The housing protrusion may overlap at least a portion of the damper member along the first direction.

The damper member may be coupled to the legs of the connection part.

The second junction may be disposed between the mover and the first junction.

According to an embodiment of the present invention, it is possible to implement a camera actuator that suppresses oscillation by the elastic member through the damper member while having a holding force in the OIS actuator by using the elasticity of the elastic member.

In addition, a camera actuator with improved reliability and durability can be implemented through coupling force between various components and the elastic member by the damper member.

In addition, it is possible to provide a camera actuator applicable to ultra-slim, subminiature, and high-resolution cameras. In particular, it is possible to efficiently dispose actuators for OIS without increasing the overall size of the camera module.

In addition, tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference, and tilting in the X-axis direction and tilting in the Y-axis direction can be implemented with a stable structure, and mutually It does not cause magnetic field interference and can realize a precise OIS function.

According to an embodiment of the present invention, it is possible to secure a sufficient amount of light by eliminating the size limitation of the lens, and implement OIS with low power consumption.

Various advantageous advantages and effects of the present invention are not limited to the above description, and will be more easily understood in the process of describing specific embodiments of the present invention.

1 is a perspective view of a camera module according to an embodiment,
2 is an exploded perspective view of a camera module according to an embodiment;
Figure 3 is a cross-sectional view viewed from AA' in Figure 1,
4 is a perspective view of a first camera actuator according to a first embodiment;
5 is an exploded perspective view of a first camera actuator according to a first embodiment;
6 is a perspective view of a housing according to an embodiment,
7 is a view of a housing according to an embodiment,
8 is a perspective view of a mover according to an embodiment;
9 is a perspective view of a holder according to an embodiment,
10 is a bottom view of a holder according to an embodiment,
11 is a side view of a holder according to an embodiment,
12 is a plan view of an elastic member according to an embodiment,
13 is a side view of an elastic member according to an embodiment,
14 is a top view of an elastic member according to an embodiment,
15 is a view explaining coupling between a first member, a second member, and an elastic member in the first camera actuator according to the first embodiment;
16 is an enlarged view of part K in FIG. 15;
17A is a perspective view of a damper member before application in the first camera actuator according to the first embodiment;
17B is a perspective view after application of a damper member in the first camera actuator according to the first embodiment;
17C is a diagram illustrating coupling between a first member, a second member, and an elastic member in the first camera actuator according to the first embodiment;
17D is a diagram of another aspect of FIG. 17C;
17E is a diagram of another embodiment of FIG. 17C;
18 is a view in which the first member is removed in FIG. 17C;
19 is a perspective view of a tilting guide unit according to an embodiment;
20 is a perspective view of a tilting guide unit in a direction different from that of FIG. 19;
21 is a cross-sectional view of the tilting guide section taken along line FF' in FIG. 19;
22 is a perspective view of the first camera actuator according to the first embodiment in which the shield can and the substrate are removed;
23 is a cross-sectional view taken along line PP' in FIG. 22;
24 is a cross-sectional view taken along line QQ′ in FIG. 22;
25 is a view showing a driving unit according to an embodiment,
26 is a diagram illustrating a driving unit according to a modified example.
27 is a perspective view of the first camera actuator according to the first embodiment;
28 is a cross-sectional view taken along line SS' in FIG. 27;
29 is an exemplary view of movement of the first camera actuator shown in FIG. 28;
30 is a perspective view of the first camera actuator according to the first embodiment;
31 is a cross-sectional view taken along line RR' in FIG. 30;
32 is an exemplary view of movement of the first camera actuator shown in FIG. 31;
33 is a perspective view of a first camera actuator according to a second embodiment;
34 is a view showing a first member in a first camera actuator according to a second embodiment;
35 is a top view of a first member in a first camera actuator according to a second embodiment;
36 is a side view of a first camera actuator according to a second embodiment;
37 is a perspective view of a first camera actuator according to a third embodiment;
38 is a diagram showing a first camera actuator according to a third embodiment;
39 is a side view of a first camera actuator according to a third embodiment;
40 is a view showing a first camera actuator according to a modified example;
41 is a perspective view of a second camera actuator according to an embodiment;
42 is an exploded perspective view of a second camera actuator according to an embodiment;
43 is a cross-sectional view viewed from DD′ in FIG. 41;
44 is a cross-sectional view viewed from EE′ in FIG. 41;
45 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied;
46 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as second, first, etc. may be used to describe various components, but the components are not limited by the terms. Terms are only used to distinguish one component from another. For example, a second element may be termed a first element, and similarly, a first element may be termed a second element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings, but the same or corresponding components regardless of reference numerals are given the same reference numerals, and overlapping descriptions thereof will be omitted.

1 is a perspective view of a camera module according to an embodiment, FIG. 2 is an exploded perspective view of a camera module according to an embodiment, and FIG. 3 is a cross-sectional view viewed from AA′ in FIG. 1 .

1 and 2 , a camera module 1000 according to an embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. . Here, the first camera actuator 1100 may be used interchangeably as a 'first actuator' and the second camera actuator 1200 may be used interchangeably as a 'second actuator'.

The cover CV may cover the first camera actuator 1100 and the second camera actuator 1200 . Coupling force between the first camera actuator 1100 and the second camera actuator 1200 may be improved by the cover CV.

Furthermore, the cover CV may be made of a material that blocks electromagnetic waves. Thus, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected.

Also, the first camera actuator 1100 may be an Optical Image Stabilizer (OIS) actuator. For example, the first camera actuator 1100 may move the optical member in a direction perpendicular to the optical axis.

The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). Fixed focal length lenses may also be referred to as "single focal length lenses" or "short lenses".

The first camera actuator 1100 may change a path of light. As an example, the first camera actuator 1100 may vertically change a light path through an internal optical member (eg, a prism or a mirror). With this configuration, even if the thickness of the mobile terminal is reduced, magnification, auto focusing (AF), and OIS functions can be performed by placing a lens element larger than the thickness of the mobile terminal through a change in the light path.

However, it is not limited thereto, and the first camera actuator 1100 may change the light path vertically or at a predetermined angle multiple times.

The second camera actuator 1200 may be disposed behind the first camera actuator 1100 . The second camera actuator 1200 may be coupled to the first camera actuator 1100 . And mutual coupling can be made by various methods.

Also, the second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator 1200 may support one or a plurality of lenses and perform an auto focusing function or a zoom function by moving the lens according to a control signal from a predetermined control unit.

And one or a plurality of lenses are moved independently or individually along the optical axis direction

The circuit board 1300 may be disposed behind the second camera actuator 1200 . The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100 . Also, the number of circuit boards 1300 may be plural. The circuit board 1300 may include an image sensor and the like, and may include a connector electrically connected to another external camera module or a process of a terminal.

A camera module according to an embodiment may include a single or a plurality of camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

And the first camera module may include a single or a plurality of actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200 .

The second camera module may include an actuator (not shown) disposed in a predetermined housing (not shown) and capable of driving a lens unit. The actuator may be a voice coil motor, a micro actuator, a silicon actuator, and the like, and may be applied in various ways such as an electrostatic method, a thermal method, a bi-morph method, and an electrostatic force method, but is not limited thereto. Also, in this specification, a camera actuator may be referred to as an actuator or the like. In addition, a camera module composed of a plurality of camera modules may be mounted in various electronic devices such as mobile terminals. For example, the electronic device may include a smart phone, a mobile terminal (eg, a phone), a mobile terminal, and the like.

Referring to FIG. 3 , the camera module according to the embodiment may include a first camera actuator 1100 performing an OIS function and a second camera actuator 1200 performing a zooming function and AF function.

Light may be incident into the camera module or the first camera actuator through an opening area located on an upper surface of the first camera actuator 1100 . That is, the light may be incident into the first camera actuator 1100 along the optical axis direction (eg, the X-axis direction), and the optical path may be changed in a vertical direction (eg, the Z-axis direction) through the optical member. In addition, the optical axis direction (Z-axis direction) may correspond to the movement direction of light reflected by the optical member to be described later, and will be described based on this. And the light passes through the second camera actuator 1200, and the second camera actuator ( 1200) may be incident on the image sensor IS located at one end (PATH).

In this specification, the bottom surface means one side in the first direction. In addition, the first direction is the X-axis direction in the drawing and may be used interchangeably with the second axis direction. The second direction is the Y-axis direction in the drawing and may be used interchangeably with the first-axis direction. The second direction is a direction perpendicular to the first direction. Also, the third direction is the Z-axis direction in the drawing, and may be used interchangeably with the third-axis direction. And the third direction is a direction perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are perpendicular to the optical axis and are tilted by the second camera actuator. can In addition, in the following description of the first camera actuator 1100 or the second camera actuator 1200, the optical axis direction is the third direction (Z-axis direction), and will be described below based on this direction.

Also, in this specification, the inner side may be a direction from the cover (CV) toward the first camera actuator, and the outer side may be the opposite direction of the inner side. That is, the first camera actuator and the second camera actuator may be positioned inside the cover CV, and the cover CV may be positioned outside the first camera actuator or the second camera actuator.

And, by this configuration, the camera module according to the embodiment can improve the spatial limitations of the first camera actuator and the second camera actuator by changing the light path. That is, the camera module according to the embodiment may expand the light path while minimizing the thickness of the camera module in response to the change in the light path. Furthermore, it should be understood that the second camera actuator may provide a high range of magnification by controlling a focus or the like in an extended light path.

In addition, the camera module according to the embodiment may implement OIS through control of the optical path through the first camera actuator, thereby minimizing the occurrence of decentralization or tilting, and obtaining the best optical characteristics. can pay

Furthermore, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, the second camera actuator 1200 may include at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin.

also. The second camera actuator 1200 includes a coil and a magnet to perform a zooming function with high magnification.

For example, the first lens assembly and the second lens assembly may be moving lenses that move through coils, magnets, and guide pins, and the third lens assembly may be a fixed lens, but is not limited thereto. . For example, the third lens assembly may perform the function of a focator that forms light at a specific location, and the first lens assembly re-images an image formed by the third lens assembly, which is a concentrator, at another location. It can perform a variator function. Meanwhile, in the first lens assembly, a change in magnification may be large because the distance to the subject or the image distance is greatly changed, and the first lens assembly, which is a variable magnification, may play an important role in changing the focal length or magnification of the optical system. On the other hand, the image formed by the first lens assembly, which is a variable magnifier, may be slightly different depending on the location. Accordingly, the second lens assembly may perform a position compensation function for an image formed by the variable magnifier. For example, the second lens assembly may perform a compensator function that serves to accurately form an image formed by the first lens assembly, which is a variable magnifier, at an actual image sensor position. For example, the first lens assembly and the second lens assembly may be driven by electromagnetic force due to an interaction between a coil and a magnet. The above information may be applied to a lens assembly to be described later. Also, the first to third lens assemblies may move along an optical axis direction, that is, in a third direction. Also, the first to third lens assemblies may move in the third direction independently or dependently on each other.

On the other hand, when the actuator for OIS and the actuator for AF or Zoom are arranged according to an embodiment of the present invention, magnetic field interference with the magnet for AF or Zoom can be prevented during OIS operation. Since the first driving magnet of the first camera actuator 1100 is disposed separately from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, and shake correction.

4 is a perspective view of a first camera actuator according to the first embodiment, FIG. 5 is an exploded perspective view of the first camera actuator according to the first embodiment, FIG. 6 is a perspective view of a housing according to the embodiment, and FIG. It is a drawing of a housing according to an embodiment.

4 to 7, the first camera actuator 1100 according to the first embodiment includes a shield can 1110, a housing 1120, a mover 1130, a rotating part 1140, an elastic member (EE), It includes a first drive unit 1150, a first member 1131a, a second member 1126, and a damper member DP.

The mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131 . Also, the rotating unit 1140 may include a tilting guide unit 1141 . In addition, the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a substrate unit 1154 and a yoke unit 1155 .

The shield can 1110 may be positioned at the outermost side of the first camera actuator 1100 to surround the rotation unit 1140, the first driving unit 1150, the housing 1120, and the like, which will be described later.

The shield can 1110 may block or reduce electromagnetic waves generated from the outside. That is, the shield can 1110 may reduce the occurrence of malfunction in the rotation unit 1140 or the first driving unit 1150 .

The housing 1120 may be located inside the shield can 1110 . In addition, the housing 1120 may be located inside a substrate unit 1154 to be described later. The housing 1120 may be fastened to the shield can 1110 by being fitted or fitted with each other.

The housing 1120 may include a first housing side part 1121 , a second housing side part 1122 , a third housing side part 1123 , and a fourth housing side part 1124 .

The first housing side part 1121 and the second housing side part 1122 may be disposed to face each other. Also, the third housing side part 1123 and the fourth housing side part 1124 may be disposed between the first housing side part 1121 and the second housing side part 1122 .

The third housing side part 1123 may contact the first housing side part 1121 , the second housing side part 1122 , and the fourth housing side part 1124 . Also, the third housing side part 1123 may have a bottom surface of the housing 1120 . Also, the first housing side part 1121, the second housing side part 1122, and the fourth housing side part 1124 may have side surfaces.

In addition, as described above, the third direction (Z-axis direction) corresponds to the direction of the optical axis (for light reflected from the rigid member and moves), and the first direction (X-axis direction) and the second direction (Y-axis direction) ) is a direction perpendicular to the optical axis and may be tilted by the first camera actuator. A detailed description of this will be given later.

Also, the first housing side portion 1121 may include a first housing hole 1121a. A first coil 1152a to be described below may be positioned in the first housing hole 1121a.

In addition, the second housing side portion 1122 may include a second housing hole 1122a. A second coil 1152b to be described later may be positioned in the second housing hole 1122a.

The first coil 1152a and the second coil 1152b may be coupled to the substrate 1154 . In an embodiment, the first coil 1152a and the second coil 1152b may be electrically connected to the substrate 1154 to allow current to flow therethrough. This current is a component of the electromagnetic force that the first camera actuator can tilt with respect to the X-axis.

In addition, the third housing side portion 1123 may include a third housing hole 1123a and a housing groove 1123b'.

A third coil 1152c to be described below may be positioned in the third housing hole 1123a. The third coil 1152c may be coupled to the substrate 1154 . In addition, the third coil 1152c is electrically connected to the substrate 1154 so that current may flow. This current is a component of the electromagnetic force that the first camera actuator can tilt with respect to the Y-axis.

A second member 1126 to be described later may be seated in the housing groove 1123b'. The second member 1126 may be used interchangeably with 'housing rigid' and 'housing additional member'.

Also, the housing groove 1123b' may extend from the third housing side part 1123 to the first housing side part 1121 and the second housing side part 1122 . That is, the housing groove 1123b' may be located on the first housing side part 1121, the second housing side part 1122, and the third housing side part 1123. Accordingly, the second member 1126 may be coupled to the first housing side part 1121 , the second housing side part 1122 , and the third housing side part 1123 . As in the first camera actuator of the embodiment, the second member 1126 may be seated in a housing groove formed by a protrusion or the like and coupled to the housing 1120 . The second member 1126 may be coupled to the housing 1120 by the above description. However, the mover 1130, the tilting guide part 1141, the second member 1126, and the first member 1131a, which will be described later, can be sequentially stacked on the fourth housing side portion 1124 due to coupling by the housing groove. can Accordingly, ease of assembly can be improved. Alternatively, the second member 1126 may be integrally formed with the housing 1120 . In addition, the first member 1131a may be used interchangeably with 'mover rigid' and 'mover additional member'.

The camera module according to the embodiment includes a fixing member, and the fixing member may be a component that does not move when the camera actuator is tilted one axis or tilted two axes. As an example, the fixing member may include at least one of the housing 1120 and the second member 1126 . In this specification, it is described based on this.

The elastic member EE may be positioned between the mover 1130 and the fixing member. In addition, the tilting guide part 1141 may be located between the fixing member and the mover. Also, the elastic member EE can bring the tilting guide part 1141 into close contact with the fixing member and the mover by pulling the mover 1130 with the fixing member. In other words, the elastic member EE pulls the mover 1130 as a fixing member, so that the tilting guide 1141 can be pressed by the fixing member and the mover. Also, the elastic member EE may bring the tilting guide part 1141 and the mover 1130 into close contact. In other words, the elastic member EE may pull the mover 1130 toward the housing 1120 or the second member 1126 as a fixing member. This structure will be described later.

In addition, the fourth housing side 1124 is disposed between the first housing side 1121 and the second housing side 1122, and is disposed between the first housing side 1121, the second housing side 1122 and the third housing side. (1123).

The fourth housing side part 1124 may contact a second camera actuator connected to the first camera actuator. Accordingly, the fourth housing side portion 1124 may include a protrusion, a groove, or a plurality of grooves formed on the outer surface 1124b of the housing. Accordingly, the side part of the fourth housing may be easily coupled with other camera actuators adjacent thereto. That is, coupling force between the second camera actuators and the first camera actuators may be further improved through the fourth housing side portion 1124 . In addition, according to this configuration, the side of the fourth housing provides a light path and simultaneously improves coupling force between other components to suppress movement of the opening due to separation, thereby minimizing change in the light path.

Also, the fourth housing side part 1124 may include an opening area 1124a. Light whose path has been changed in the optical member of the first camera actuator may move to the second camera actuator through the opening region 1124a. As described above, auto focusing and/or zoom may be performed by the second camera actuator, and hand shake correction (OIS) may be performed by the first camera actuator.

In addition, the housing 1120 may include an accommodating portion 1125 formed by the first housing side part 1121 to the fourth housing side part 1124 . A second member 1126, a first member 1131a, a tilting guide 1141, a mover 1130, and an elastic member EE may be positioned in the accommodating portion 1125 as components.

The second member 1126 may be disposed on the housing 1120 so as to be coupled with the housing 1120 . The second member 1126 may be disposed within the housing or connected to the housing 1120 . Also, the second member 1126 may be easily coupled to the housing 1120 . In an embodiment, the second member 1126 may be coupled to the third housing side 1123 by seating or at least partially penetrating the housing groove 1123b' formed in the third housing side 1123 . Through this, the second member 1126 is coupled to the housing 1120, and fixation between the mover 1130 and the tilting guide 1141, which will be described later, can be maintained.

In addition, the second member 1126 may include a first housing side portion 1121 and a first coupling portion PP1 disposed in an area adjacent to the second housing side portion 1121 . As a modified example, the first coupling part PP1 may be disposed on an outer surface of the fourth housing side part 1124 of the housing 1120 . Also, the first coupling part PP1 may be formed of a protrusion. Also, the first coupling portion PP1 may be coupled to the first junction portion EP1. As will be described later, the first coupling part PP1 may be inserted into the first bonding hole of the first bonding part EP1.

In addition, the second member 1126 includes a second protrusion groove PH2 in which the second protrusion of the tilting guide is seated. Accordingly, the second member 1126 causes the protrusion of the tilting guide to be disposed adjacent to the optical member within the fourth seating groove. Accordingly, the protrusion, which is the reference axis of the tilt, may be disposed close to the center of gravity of the mover 1130. Accordingly, since the moment for moving the mover 1130 for tilting is minimized during tilting, power consumption can be reduced by minimizing current consumption for driving the coil.

Also, the second member 1126 and the housing 1120 may be formed integrally or separately as described above. When formed integrally, the coupling force between the second member 1126 and the housing 1120 is improved, so that the reliability of the camera actuator may be improved. In addition, the ease of assembling and manufacturing the second member 1126 and the housing 1120 may be improved when formed separately. Hereinafter, it will be described based on separation.

The mover 1130 includes a holder 1131 and an optical member 1132 seated in the holder 1131 .

First, the holder 1131 may be seated in the receiving portion 1125 of the housing 1120. The holder 1131 is the first housing side part 1121, the second housing side part 1122, the third housing side part 1123, and the fourth housing side part 1124 respectively corresponding to the outer surface of the first holder to the outside of the fourth holder. side may be included. Also, the holder 1131 may include a first member 1131a disposed in the fourth seating groove 1131S4a. A detailed description of this will be given later.

The optical member 1132 may be seated on the holder 1131 . To this end, the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove. In an embodiment, the optical member 1132 may be formed of a mirror. Hereinafter, although shown based on a mirror, it may be formed of a plurality of lenses as in the above-described embodiment. For example, the optical member 1132 may include a reflector disposed therein. However, it is not limited thereto. The optical member 1132 may reflect light reflected from the outside (eg, an object) into the camera module. In other words, the optical member 1132 may improve spatial limitations of the first camera actuator and the second camera actuator by changing the path of the reflected light. As such, it should be understood that the camera module may provide a high range of magnification by extending the optical path while minimizing the thickness.

Additionally, the first member 1131a may be coupled to the holder 1131 . The first member 1131a may come into contact with a protrusion located in an area other than the fourth seating groove on the outer surface of the fourth holder of the holder 1131 . The first member 1131a may be integrally formed with the holder 1131 . Alternatively, the first member 1231a may have a structure separated from the holder 1131. Even when the first member 1131a and the holder 1131 are integrally coupled, the fourth seating groove may be located in the holder 1131 . In addition, when the first member 1131a is not coupled to the holder 1131, the fourth seating groove is opened downward and backward, but when the first member 1131a is coupled, the fourth seating groove is opened downward. can

The elastic member EE may be disposed between the tilting guide part 1141 and the housing 1120 . In particular, the elastic member EE may be sequentially disposed on the tilting guide part 1141, the second member 1126, and the first member 1131a. Accordingly, the elastic member EE may be disposed on the first member 1131a.

The elastic member EE may be made of an elastic material, is coupled between the second member 1126 and the first member 1131a, and the first member 1126 is fixed to the housing 1120 based on the first member 1126. Elastic force may be provided to the member 1131a and the holder 1131 connected to the first member 1131a.

Accordingly, the elastic member EE may be coupled to the housing 1120 and the mover 1130 between the housing 1120 and the mover 1130, and may press the tilting guide part 1141 through the mover 1130. Accordingly, the mover 1130 may be tilted in the X-axis and/or the Y-axis through the tilting guide unit 1141 .

A portion of the elastic member EE that contacts the first member 1131a (or holder 1131) and the housing 1120 may be spaced apart from each other in the third direction (Z-axis direction). The elastic member EE may have a preload due to the spaced distance between the above-described contacting parts (first and second bonding parts to be described later). Also, this preload may be transmitted to the tilting guide part 1141 through the mover 1130 and to the second member 1126 through the tilting guide part 1141 . Thus, the tilting guide part 1141 disposed between the mover 1130 and the second member 1126 may be pressed by the elastic member EE. That is, the force of the tilting guide part 1141 located between the mover 1130 and the second member 1126 can be maintained. Accordingly, the position between the mover 1130 and the housing 1120 can be maintained without separation of the tilting guide 1141 even during X-axis tilt or Y-axis tilt.

Also, the rotation unit 1140 may include a tilting guide unit 1141 .

The tilting guide part 1141 may be combined with the mover 1130 and the housing 1120 described above. In addition, the tilting guide part 1141 may be disposed between the mover 1130 and the second member 1126 and coupled with the mover 1130 and the housing 1120. In other words, the tilting guide part 1141 may be disposed between the second member 1126 and the holder 1131 . The tilting guide part 1141 may be positioned between the second member 1126 and the fourth seating groove 1131S4a of the holder 1131 .

Accordingly, in the camera actuator according to the embodiment, in the third direction (Z-axis direction), the first member 1131a, the second member 1126, the tilting guide part 1141, the holder 1131 and the fourth housing side (1124) can be arranged in order.

Also, the tilting guide part 1141 may be disposed adjacent to the optical axis. Thus, the camera actuator according to the embodiment can easily change the light path according to the tilt of the first and second axes, which will be described later.

As an example, the tilting guide part 1141 may include a first protrusion spaced apart from each other in a first direction (X-axis direction) and a second protrusion spaced apart from each other in a second direction (Y-axis direction). Also, the first protrusion and the second protrusion may protrude in opposite directions. A detailed description of this will be given later. Furthermore, the tilting guide part 1141 may include a hemisphere or a circle coupled to the base like the first protrusion and the second protrusion. Also, the tilting guide part 1141 may include a base or plate and a plurality of spheres or balls penetrating the plate.

The first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a substrate unit 1154 and a yoke unit 1155 . The above information may be equally applicable to this.

The damper member DP may be disposed between at least one of the mover 1130 and the housing 1120 and the elastic member EE. Accordingly, the damper member DP may be coupled to at least one of the mover 1130 and the housing 1120 and the elastic member EE. In addition, the damper member DP may be coupled to at least one group of the elastic member EE and the mover 1130 and the elastic member EE and the housing 1120. For example, the damper member DP may be coupled to the elastic member EE and the mover 1130. Also, the damper member DP may be coupled to the elastic member EE and the housing 1120 .

Furthermore, each of the first member 1131a and the second member 1126 may be considered as an element of the mover 1130 and the housing 1120. Accordingly, the damper member DP may be coupled to the elastic member EE and the first member 1131a of the mover 1130. Also, the damper member DP may be coupled to the elastic member EE and the second member 1126 of the housing 1120. Furthermore, the damper member DP may be arranged to connect spaced apart areas of the elastic member EE to each other. A detailed description of this will be described later in various embodiments. In addition, below, the damper member DP may be expressed as DP, DP1, DP2, DP3, etc. according to the position of the damper member DP.

8 is a perspective view of a mover according to an embodiment.

Referring to FIG. 8 , an optical member 1132 may be seated on a holder. The optical member 1132 may be a right angle optical member as a reflector, but is not limited thereto.

As an example, the optical member 1132 may have a protruding structure on a portion of its outer surface. The optical member 1132 may be easily coupled to the holder through the protruding structure. In addition, the optical member 1132 may be seated on the seating surface of the holder on the bottom surface 1132b. Accordingly, the bottom surface 1132b of the optical member 1132 may correspond to the seating surface of the holder. As an example, the bottom surface 1132b may be made of an inclined surface in the same way as the holder is seated. Accordingly, it is possible to prevent the optical member 1132 from being separated from the holder as the optical member moves along with the movement of the holder.

Also, as described above, the optical member 1132 may have a structure capable of reflecting light reflected from the outside (eg, an object) into the camera module. As in the embodiment, the optical member 1132 may be formed of a single mirror. Also, the optical member 1132 may be formed of a prism. For example, the optical member 1132 may be formed of optical elements of various materials or structures that change the path of light. The optical member 1132 may improve spatial limitations of the first camera actuator and the second camera actuator by changing the path of the reflected light. As such, it should be understood that the camera module may provide a high range of magnification by extending the optical path while minimizing the thickness. In addition, it should be understood that the camera module including the camera actuator according to the embodiment may provide a high range of magnification by extending an optical path while minimizing the thickness.

Figure 9 is a perspective view of the holder according to the embodiment, Figure 10 is a bottom view of the holder according to the embodiment, Figure 11 is a side view of the holder according to the embodiment.

9 to 11 , the holder 1131 may include a seating surface 1131k on which an optical member 1132 is seated. The seating surface 1131k may be an inclined surface. In addition, the holder 1131 may include a jaw portion 1131b on the seating surface 1131k. Also, in the holder 1131, the jaw portion 1131b may be coupled with the protruding structure of the optical member 1132.

The holder 1131 may include a plurality of outer surfaces. For example, the holder 1131 may include a first holder outer surface 1131S1 , a second holder outer surface 1131S2 , a third holder outer surface 1131S3 , and a fourth holder outer surface 1131S4 . A description of this may be equally applied to the description of the above-described embodiment.

Specifically, the fourth holder outer surface 1131S4 may include a fourth seating groove 1131S4a. In addition, the first member 1131a, the second member 1126, and the tilting guide part 1141 may be sequentially positioned in the third direction (Z-axis direction) in the fourth seating groove 1131S4a.

As an example, the fourth seating groove 1131S4a may include a plurality of areas. It may include a first area AR1 , a second area AR2 , and a third area AR3 .

The first member 1131a may be positioned in the first area AR1. That is, the first area AR1 may overlap the first member 1131a in the first direction (X-axis direction).

In the second area AR2 , the second member 1126 may be located. That is, the second area AR2 may overlap the second member 1126 in the first direction (X-axis direction).

The tilting guide part 1141 may be located in the third area AR3. Also, the third area AR3 may overlap the tilting guide part 1141 in the first direction (X-axis direction). In particular, the third area AR3 may overlap the base of the tilting guide part 1141 in the first direction (X-axis direction).

According to the embodiment, the second area AR2 may be located between the first area AR1 and the third area AR3. Also, the first area AR1 , the second area AR2 , and the third area AR3 may have different heights in the first direction (X-axis direction). As an example, the first area AR1 may have a height greater than the second area AR2 and the third area AR3 in the first direction (X-axis direction). Accordingly, a step may be located between the first area AR1 and the second area AR2.

The first member 1131a may be seated on the outer surface 1131S4 of the fourth holder. The second coupling part PP2 may be positioned on an outer surface of the first member 1131a (eg, a surface facing the second member). The second coupling portion PP2 may include a coupling base PP2a and a second coupling protrusion PP2b. The second coupling portion PP2 may be disposed to overlap a first protrusion to be described later in a first direction (X-axis direction).

A plurality of second coupling protrusions PP2b may be spaced apart from each other in the second direction (Y-axis direction). In this case, all bisectors between the plurality of second coupling protrusions PP2b may be located on the vertex of the first protrusion and in the first direction (X-axis direction).

As an example, a tilting guide unit may be accommodated in the fourth seating groove 1131S4a. And, as described above, the first member 1131a may also be accommodated in the fourth seating groove 1131S4a. In this case, the first member 1131a may be disposed outside the tilting guide within the fourth seating groove 1131S4a. More specifically, the first member 1131a, a portion of the second member, and the tilting guide may be sequentially disposed in the fourth seating groove 1131S4a along the third direction (Z-axis direction). In other words, the first member 1131a may be disposed in the upper area AR1 of the fourth seating groove 1131S4a. The tilting guide part may be disposed in the lower area AR3 of the fourth seating groove 1131S4a. A part of the second member may be disposed in an intermediate area AR2 between the upper and lower areas. Accordingly, at least a portion of the second member may be disposed between the tilting guide part and the first member 1131a. In addition, at least a portion of the first member 1131a and the second member may be installed in the fourth seating groove 1131S4a.

Also, as an embodiment, the holder 1131 of the mover 1130 may include a mover protrusion 1131p protruding outward or towards a spring from the outer surface 1131S4 of the fourth holder.

The holder 1131 of the mover 1130 may have a plurality of protrusions 1131ap. For example, the mover protrusion 1131p may include a first protrusion 1131ap1 , a second protrusion 1131ap2 , and a third protrusion 1131ap3 .

The first protrusion 1131ap1 and the second protrusion 1131ap2 may be spaced apart from each other in the first direction (X-axis direction). Also, the first protrusion 1131ap1 and the second protrusion 1131ap2 may overlap along the first direction (X-axis direction).

Furthermore, a mover groove 1131h may be included between the first protrusion 1131ap1 and the second protrusion 1131ap2 according to the embodiment. The mover groove 1131h may correspond to a region between the first protrusion 1131ap1 and the second protrusion 1131ap2 in the first direction (X-axis direction).

The elastic member may be disposed in the mover groove 1131h. Also, the elastic member may pass through the mover groove 1131h.

Furthermore, the third protrusion 1131ap3 may be disposed inside the mover groove 1131h. That is, the mover groove 1131h may be surrounded by the first protrusion 1131ap1 , the second protrusion 1131ap2 , and the third protrusion 1131ap3 .

Also, the third protrusion 1131ap3 may be positioned adjacent to the mover groove 1131h. Accordingly, the mover groove 1131h and the third protrusion 1131ap3 may overlap at least partially in the second direction (Y-axis direction). Furthermore, the third protrusion 1131ap3 may at least partially overlap the first protrusion 1131ap1 or the second protrusion 1131ap2 in the second direction (Y-axis direction). With this configuration, even if the damper member is applied to the mover groove 1131h, it may not flow outward due to the first protrusion 1131ap1, the second protrusion 1131ap2, and the third protrusion 1131ap3. Also, the third protrusion 1131ap3 may prevent the damper member from moving to the inside, that is, to the first member.

In an embodiment, the width or length W1 of the first protrusion 1131ap1 in the first direction (X-axis direction) and the width or length W2 of the second protrusion 1131ap2 in the first direction (X-axis direction) are may be the same or different. In this case, the third protrusion 1131ap3 may be larger than the separation distance between the first protrusion 1131ap1 and the second protrusion 1131ap2 in the first direction (X-axis direction). Thus, the third protrusion 1131ap3 can easily suppress the inward movement of the damper member.

In addition, the mover groove 1131h may have a stepped portion ST. For example, in the mover groove 1131h, the stepped portion ST may be lower than either the inner region 1131hi or the outer region 1131ho. In an embodiment, the inner side (direction toward the first protruding groove PH1) may be lower than the outer side. Thus, blurring to the inside of the damper member can be suppressed. The mover groove 1131h may be a groove area formed by the first protrusion 1131ap1 and the second protrusion 1131ap2. Also, the mover groove 1131h may be a groove formed downward from the lower surface of the first protrusion 1131ap1 or the second protrusion 1131ap2.

Figure 12 is a plan view of an elastic member according to the embodiment, Figure 13 is a side view of the elastic member according to the embodiment, Figure 14 is a top view of the elastic member according to the embodiment, Figure 15 is a first embodiment according to the first embodiment This is a view explaining the coupling between the first member, the second member and the elastic member in the one-camera actuator, and FIG. 16 is an enlarged view of part K in FIG. 15 .

Referring to FIGS. 12 to 16 , the elastic member EE according to the embodiment includes a first junction part EP1, a second junction part EP2, and a connection part CP.

The first junction part EP1 is connected to the housing 1120, and the first junction part EP1 and the housing 1120 may be coupled to each other. The number of first bonding parts EP1 may be plural. Hereinafter, the number of first bonding parts EP1 will be described based on two.

In addition, the first junction part EP1 may be coupled to the fixing member. That is, the first bonding portion EP1 may be coupled to the housing 1120 or the second member 1126 . Hereinafter, as shown in the drawing, the first bonding portion EP1 may be coupled to the second member 1126 .

Also, the second junction part EP2 is connected to the first member 1131a, so that the second junction part EP2 and the first member 1131a may be coupled to each other.

The connection part CP may be disposed between the first junction part EP1 and the second junction part EP2. That is, the connection part CP may have one end connected to the first junction part EP1 and the other end connected to the second junction part EP2.

In an embodiment, the second junction part EP2 may be located between a plurality of first junction parts EP1 spaced apart from each other. Specifically, the second junction part EP2 may be disposed between the mover 1130 and the first junction part EP1. That is, the second junction part EP2 may be spaced apart from the first junction part EP1 in the third direction (Z-axis direction). Accordingly, the connection portion CP may extend from the first member 1131a toward the second member 1126 . Alternatively, the connection part CP may extend in the third direction (Z-axis direction). For example, the connection part CP may have a curved shape from the first junction part EP1 to the second junction part EP2. Accordingly, since the first junction EP1 is fixed (the housing is fixed), the elastic restoring force generated by the elastic member EE can be formed toward the first junction EP1 from the second junction EP2. Accordingly, the first member 1131a connected to the second junction EP2 and the mover 1130 coupled to the first member 1131a also generate force from the second junction EP2 toward the first junction EP1. can Accordingly, the above-described force may be applied between the mover 1130 and the tilting guide part 1141. And finally, since the tilting guide part 1141 presses the second member 1126, the tilting guide part 1141 moves the mover 1130 and the second member ( 1126) (or the housing). In addition, the elastic member ( EE) may have a preload, which is the force described above.

In addition, the second junction part EP2 of the elastic member EE may not be disposed on a surface that is in contact with one surface of the first junction part EP1 of the elastic member EE and the second member 1126 as a fixing member. In other words, the second junction part EP2 of the elastic member EE is one surface of the first junction part EP1 of the elastic member EE (eg, a surface in contact with the second member) or a plane with respect to a surface in contact with the second member. (XY plane). That is, as described above, the first junction part EP1 and the second junction part EP2 may be positioned on different planes XY and spaced apart from each other in a third direction (Z-axis direction). Accordingly, the second junction part EP2 may be positioned closer to the reflective member than the first junction part EP1.

In the embodiment, even if the preload is formed in a direction opposite to the third direction (eg, a direction from the tilting guide toward the second member), the position of the tilting guide 1141 can be easily maintained. In addition, since a magnetic material or the like is not used, malfunction due to magnetic force to other camera actuators (eg, the second camera actuator) adjacent to the first camera actuator may be prevented. In addition, the camera actuator according to the embodiment can be easily miniaturized by using an elastic member that is light in weight and thin in thickness without using a magnetic material or the like. Also, the second junction part EP2 may be disposed between the mover 1130 and the first junction part EP1.

Also, as an embodiment, the first junction part EP1 may include a first flat region EP1f and a plurality of first junction holes EP1h positioned in the first flat region EP1f.

The inner surface of the first flat region EP1f may be spaced apart from the contact region CA1 in which the housing and the first flat region EP1f come into contact in a second direction (Y-axis direction). In other words, the first flat region EP1f may be spaced apart from each other. The area EP1f may be located on the inner side of the contact area CA1 where the housing and the first flat area EP1f come into contact with each other.

Accordingly, the second member 1126 contacting the first flat region EP1f may not interfere with the connection portion CP. Accordingly, the camera actuator according to the embodiment may provide accurate X-axis tilt and/or Y-axis tilt.

In addition, the second junction part EP2 may include a second flat region EP2f and a plurality of second junction holes EP2h positioned in the second flat region EP2f.

The second flat area EP2f may be spaced apart from a contact area CA2 in which the outer surface EP2s contacts the bonding base PP2a of the first member 1131a in the second direction (Y-axis direction). In other words, the outer surface EP2d of the second flat region EP2f may be located outside the outer surface of the coupling base PP2a. Accordingly, the first member 1131a contacting the second flat region EP2f may not interfere with the connection portion CP. Accordingly, the camera actuator according to the embodiment may provide accurate X-axis tilt and/or Y-axis tilt.

Also, there may be a plurality of first bonding holes EP1h and second bonding holes EP2h.

Also, the first junction holes EP1h may be spaced apart from each other in a first direction (X-axis direction). Also, the second junction holes EP2h may be spaced apart from each other in a second direction (Y-axis direction).

In an embodiment, the length dd3 (eg, diameter) of the second bonding hole EP2h in the first direction (X-axis direction) is in the first direction (X-axis direction) between the plurality of first bonding holes EP1h. It may be smaller than the length dd2.

Also, the second bonding hole EP2h may be positioned between the first bonding holes EP1h. For example, the second bonding hole EP2h may be disposed on the first imaginary line LX1 that halves the first bonding hole EP1h. Accordingly, in the camera actuator according to the embodiment, the force pressed by the elastic member EE may be uniformly provided to both the upper part and the lower part of the mover.

When the Y-axis tilt is performed, the amount of current provided to the first coil and the second coil may not change differently according to positive (+)/negative (-) values with respect to the Y-axis. That is, the change width of the current provided to the first coil and the second coil may be uniform in correspondence to the position of the mover. Accordingly, control for the Y-axis tilt can be easily performed. Furthermore, since the elastic restoring force of the elastic member EE is not uniformly formed in one region, the reliability of the elastic member EE may be improved.

In addition, a second imaginary line LX2 connecting the center of the first junction hole EP1h in the first junction part EP1 (or the first flat area) and a third imaginary line bisecting the second junction hole EP2h ( LX3) may be parallel to each other. Accordingly, in the camera actuator according to the embodiment, the force pressed by the elastic member EE may be uniformly provided even to the movement of the mover.

When the X-axis tilt is performed, the amount of current provided to the third coil may not change differently according to positive (+)/negative (-) values with respect to the X-axis. That is, the change width of the current provided to the third coil may be uniform in correspondence to the position of the mover. Accordingly, control for the X-axis tilt can be easily performed. Furthermore, since the elastic restoring force of the elastic member EE is not uniformly formed in one region, the reliability of the elastic member EE may be improved.

Also, the second imaginary line LX2 and the third imaginary line LX3 may be parallel to the first direction (X-axis direction).

In an embodiment, the connection part CP includes a first connection part CP1, a second connection part CP2, a third connection part CP3, and a fourth connection part located between the first junction part EP1 and the second junction part EP2 ( CP4) may be included. Furthermore, the number of connection units CP may be plural.

In detail, the first connection part CP1 , the second connection part CP2 , the third connection part CP3 , and the fourth connection part CP4 may be sequentially disposed from the first junction part EP1 to the second junction part EP2 . . That is, the first connection part CP1 , the second connection part CP2 , the third connection part CP3 , and the fourth connection part CP4 may be sequentially disposed from the outside toward the inside.

Also, the first connection part CP1 , the second connection part CP2 , the third connection part CP3 , and the fourth connection part CP4 may be symmetrically disposed with respect to the second junction part EP2 . Also, the first connection part CP1 , the second connection part CP2 , the third connection part CP3 , and the fourth connection part CP4 may be symmetrically arranged with respect to the third imaginary line LX3 . Also, the first connection part CP1 , the second connection part CP2 , the third connection part CP3 , and the fourth connection part CP4 may be disposed symmetrically with respect to the first virtual line LX1 .

One end of the first connection portion CP1 may come into contact with the first bonding portion EP1. Also, the first connection part CP1 may extend toward the second junction part EP2. That is, the first connection portion CP1 may contact the first junction portion EP1 and extend inwardly.

The second connection part CP2 may be connected to the other end of the first connection part CP1. That is, one end of the second connection part CP2 may come into contact with the other end of the first connection part CP1.

The second connection part CP2 may be bent in the first direction (X-axis direction) with respect to the first connection part CP1. In an embodiment, the second connection part CP2 may extend downward from a lower portion of the first virtual line LX1 and may extend upward from an upper portion of the first virtual line LX1 . Accordingly, the second connection part CP2 may be inclined and extended with respect to the first connection part CP1 at a first slope θ1. For example, the first slope may be 90 degrees.

The third connection part CP3 may be connected to the other end of the second connection part CP2. That is, one end of the third connection part CP3 may come into contact with the other end of the second connection part CP2.

The third connection part CP3 may be bent in the second direction (Y-axis direction) with respect to the second connection part CP2. In an embodiment, the third connection part CP3 may extend toward the second junction part EP2 with respect to the second connection part CP2. Also, the third connection part CP3 may extend from the left side of the third imaginary line LX3 toward the right side, and may extend from the right side toward the left side of the third virtual line Lx3 .

Also, the third connection part CP3 may be inclined and extended with respect to the second connection part CP2 at a second slope θ2. The second slope may be the same as the first slope.

The fourth connection part CP4 may be connected to the other end of the third connection part CP3. One end of the fourth connection part CP4 may come into contact with the other end of the third connection part CP3. Also, the other end of the fourth connection part CP4 may be connected to the second junction part EP2.

The fourth connection part CP4 may extend toward the third virtual line LX3 at a predetermined inclination with respect to the third connection part CP3. That is, the fourth connection part CP4 may be bent at a predetermined angle toward the second junction part EP2 with respect to the third connection part CP3.

The fourth connection part CP4 may be inclined and extended with respect to the third connection part CP3 at a third slope θ3. The third slope θ3 may be smaller than the first slope θ1 and the second slope θ2.

In an embodiment, the elastic member EE is a lung symmetrical with respect to the third imaginary line LX3 or the second junction EP2 by the first junction EP1, the second junction EP2, and the connection CP. You can have 2 loops. Also, the height between the first connection parts CP1 may be maintained in the closed loop. That is, the first connection part CP1 may have the same distance CL1 between the first virtual lines LX1.

Further, in the closed loop, the height between the second connection part CP2 and the third connection part CP3 may be greater than the height between the first connection parts CP1. That is, the distance CL1 between the first connection part CP1 and the first virtual line LX1 may be smaller than the distance CL2 between the third connection part CP3 and the first virtual line LX1. In other words, the height (length in the first direction (X-axis direction)) of the second connection part CP2 and the third connection part CP3 may increase in the closed loop compared to the first connection part CP1.

Also, the height between the third connection parts CP3 may be maintained in the closed loop.

Further, in the closed loop, the fourth connection part CP4 may decrease by a predetermined length as the separation distance CL3 between the first virtual lines LX3 is adjacent to the third virtual line. That is, in a closed loop, the height may decrease with a slight slope by the fourth connection part CP4. Accordingly, the fourth connection portion CP4 may come into contact with the second junction portion EP2.

Figure 17a is a perspective view of the first camera actuator according to the first embodiment before application of the damper member, Figure 17b is a perspective view of the first camera actuator according to the first embodiment after application of the damper member, Figure 17c is the first embodiment A view showing coupling between the first member, the second member and the elastic member in the first camera actuator according to the example, FIG. 17D is a diagram of another aspect of FIG. 17C, and FIG. 17E is a diagram of another aspect of FIG. 17C , FIG. 18 is a view in which the first member is removed in FIG. 17C.

Referring to FIGS. 17A and 17B, in an embodiment, the height hc or length of the third protrusion 1131ap3 in the third direction (Z-axis direction) is the first protrusion 1131ap1 or the second protrusion 1131ap2. It may be different from the height (ha, hb) or length in three directions (Z-axis direction). For example, the height or length of the third protrusion 1131ap3 in the third direction (Z-axis direction) may be smaller than the height or length of the first protrusion 1131ap1 in the third direction (Z-axis direction). Also, the height or length of the third protrusion 1131ap3 in the third direction (Z-axis direction) may be smaller than the height or length of the second protrusion 1131ap2 in the third direction (Z-axis direction). In this case, the height of each protrusion may be the length from the lowermost surface of the plurality of protrusions to the upper surface of each protrusion in the third direction (Z-axis direction). For example, the lowermost surface of the plurality of protrusions may be the lowermost surface of the third protrusion 1131ap3 .

With this configuration, the third protrusion 1131ap3 may come into contact with at least a portion of the elastic member and support the elastic member. Also, the elastic member may pass through a region between the first protrusion 1131ap1 and the second protrusion 1131ap2 .

In addition, the lower surface of the third protrusion 1131ap3 may be positioned more inward or lower than the first protrusion 1131ap1 or the second protrusion 1131ap2 . In other words, the lower surface of the third protrusion 1131ap3 may be spaced apart from the lower surface of the first protrusion 1131ap1 or the second protrusion 1131ap2 in the third direction (Z-axis direction). Also, the third protrusion 1131ap3 may be coupled to a groove formed on a side surface of the first member 1131a. With this configuration, the third protrusion 1131ap3 can improve the coupling force between the first member 1131a and the holder (or mover). Furthermore, as described above, the third protrusion 1131ap3 can suppress the inward movement of the damper member DP.

Furthermore, as described above, a groove may be formed in a region between the first protrusion 1131ap1 and the second protrusion 1131ap2 due to the protruding structure. The groove may correspond to the aforementioned mover groove 1131h. Furthermore, as described above, an additional stepped structure may further exist in the mover groove 1131h.

Referring to FIGS. 17C to 17D and 18 , according to the embodiment, the damper member DP may be disposed between the first protrusion 1131ap1 and the second protrusion 1131ap2 . Also, the damper member DP may be disposed on the third protrusion 1131ap3. Alternatively, the damper member DP may be disposed between the first protrusion 1131ap1 and the second protrusion 1131ap2 and on the third protrusion 1131ap3.

Thus, the third protrusion 1131ap3 can improve the coupling force between the first member 1131a and the holder, and at the same time, the coupling force between the elastic member and the mover by the damper member DP can be improved. In addition, the third protrusion 1131ap3 may suppress the flow of the damper member to improve reliability of the actuator.

Also, in the first camera actuator according to the embodiment, the second junction part EP2 may overlap the first protrusion part PR1 in a second axis or in a first direction.

In addition, the apex of the first protrusion PR1 on the base described later may be disposed on an intermediate axis (corresponding to the above-described third imaginary line) bisecting the plurality of second junction holes EP2h.

With this configuration, when the second axis is tilted by the first protrusion PR1, the force applied to the tilting guide by the elastic member EE can be uniformly generated based on the second axis or the first direction. .

In addition, the second member 1126 may include a protruding region 1126a protruding backward. The protrusion area 1126a may partially overlap the elastic member EE in the second direction (Y-axis direction). Accordingly, the connection portion CP of the elastic member EE may have a structure surrounding the protruding region 1126a. With this configuration, the center of gravity can be easily adjusted by losing weight.

Also, a vertex of the second protrusion PR2 may be located on the first imaginary line LX1. That is, the apex of the second protrusion PR2 may be disposed on the first imaginary line LX1 that halves the first junction hole EP1h. Accordingly, in the camera actuator according to the embodiment, the force pressed by the elastic member EE may be uniformly provided to both the upper part and the lower part of the mover.

In addition, the damper member DP according to the embodiment may be disposed in the above-described mover groove 1131h and come into contact with the mover 1130 or the holder 1131. In other words, the damper member DP may be combined with the holder 1131 (or mover) and the elastic member EE. By this configuration, the damper member (DP) can suppress vibration at the settling time (settling time) when the shaft of the mover rotates. In addition, the damper member DP can suppress breakage of the spring due to the resonant frequency. Accordingly, reliability of the first camera actuator according to the embodiment may be improved.

In particular, the connection part CP of the elastic member EE is at least partially disposed in the mover groove 1131h and may come into contact with the damper member DP.

Also, as described above, the third protrusion 1131ap3 may at least partially contact the elastic member EE. For example, an upper surface of the third protrusion 1131ap3 may contact the elastic member EE. Accordingly, the third protrusion 1131ap3 may support at least a portion of the elastic member EE.

Furthermore, the elastic member EE may pass through a region between the first protrusion 1131ap1 and the second protrusion 1131ap2 . Also, the connection part CP may pass through the damper member DP in the mover groove 1131h or the mover groove 113h. For example, the elastic member EE may pass through the damper member DP. As a result, coupling force between the damper member DP, the elastic member EE, and the holder 1131 is improved, so that vibration suppression can be improved. Accordingly, durability of the first camera actuator may be improved.

19 is a perspective view of a tilting guide unit according to an embodiment, FIG. 20 is a perspective view of a tilting guide unit in a direction different from that of FIG. 19 , and FIG. 21 is a cross-sectional view of the tilting guide unit cut along line FF′ in FIG. 19 .

19 to 21, the tilting guide part 1141 according to the embodiment includes a base BS, a first protrusion PR1 protruding from the first surface 1141a of the base BS, and a base BS It may include a second protruding portion PR2 protruding from the second surface 1141b. In addition, as described above, depending on the structure, the first protrusion and the second protrusion may have opposite faces, but will be described below based on the above information.

First, the base BS may include a first surface 1141a and a second surface 1141b opposite to the first surface 1141a. That is, the first surface 1141a may be spaced apart from the second surface 1141b in a third direction (Z-axis direction), and may be outer surfaces facing each other or facing each other within the tilting guide part 1141. .

The tilting guide part 1141 may include a first protrusion PR1 extending to one side on the first surface 1141a. According to the embodiment, the first protrusion PR1 may protrude toward the mover from the first surface 1141a. The plurality of first protrusions PR1 may include a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

The 1-1st protrusion PR1a and the 1-2nd protrusion PR1b may be located side by side in the first direction (X-axis direction). In other words, the 1-1st protrusion PR1a and the 1-2nd protrusion PR1b may overlap in the first direction (X-axis direction). Also, in the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by an imaginary line extending in the first direction (X-axis direction).

In addition, the 1-1st protrusion PR1a and the 1-2nd protrusion PR1b have a curvature, and may have, for example, a hemispherical shape.

Also, the tilting guide part 1141 may include a second protrusion PR2 extending to one side on the second surface 1141a. According to the embodiment, the second protrusion PR2 may protrude toward the housing from the second surface 1141b. Also, the second protrusion PR2 is plural, and may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b in the embodiment.

The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). Also, in the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by an imaginary line VL2′ extending in the second direction (Y-axis direction).

The 2-1st protrusion PR2a and the 2-2nd protrusion PR2b may have a curvature, eg, a hemispherical shape. Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may contact the first member 1131a at a point spaced apart from the second surface 1141b of the base BS.

The 1-1st protrusion PR1a and the 1-2nd protrusion PR1b may be located in a region between the 2-1st protrusion PR2a and the 2-2nd protrusion PR2b in the second direction. According to the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b are formed at the center of the separation space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. can be located With this configuration, the actuator according to the embodiment can have an X-axis tilt angle in the same range with respect to the X-axis. In other words, the tilting guide part 1141 sets the X-axis tiltable range (eg, positive/negative range) of the mover based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b along the X-axis. The same can be provided as a standard.

Also, the 2-1st protrusion PR2a and the 2-2nd protrusion PR2b may be located in a region between the 1-1st protrusion PR1a and the 1-2nd protrusion PR1b in the first direction. According to the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b are formed at the center of the separation space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. can be located With this configuration, the actuator according to the embodiment can have the same range as the Y-axis tilt angle with respect to the Y-axis. In other words, based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, the tilting guide 1141 and the mover set the Y-axis tiltable range (eg, positive/negative range) along the Y-axis. The same can be provided as a standard.

The first protrusion PR1 may be positioned on the first bisector line VL1. Here, the first bisector VL1 is a line that bisects the first surface 1141a in the second direction (Y-axis direction). Accordingly, the tilting guide part 1141 can easily perform the X-axis tilt through the first protrusion PR1. In addition, since the tilting guide part 1141 performs the X-axis tilt based on the first bisector VL1, rotational force can be uniformly applied to the tilting guide part 1141. Accordingly, the X-axis tilt can be precisely performed and the reliability of the device can be improved.

In addition, the 1-1st protrusion PR1a and the 1-2nd protrusion PR1b may be symmetrically disposed with respect to the first bisector line VL1 and the second bisector line VL2. Alternatively, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be symmetrically positioned with respect to the first center point C1. With this configuration, when the X-axis is tilted, the supporting force supported by the first protrusion PR1 can be equally applied to the upper and lower sides with respect to the second bisector VL2. Accordingly, reliability of the tilting guide unit may be improved. Here, the second bisector VL2 is a line that bisects the first surface 1141a in the first direction (X-axis direction). Also, the first center point C1 may be an intersection of the first bisector line VL1 and the second bisector line VL2. Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilting guide part 1141 .

In addition, since the tilting guide part 1141 performs the Y-axis tilt based on the fourth bisector line VL2', rotational force can be uniformly applied to the tilting guide part 1141. Thus, the Y-axis tilt can be made precisely and the reliability of the device can be improved.

Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be symmetrically disposed on the third bisector VL1' on the fourth bisector VL2'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be symmetrically positioned with respect to the second central point C1'. With this configuration, when the Y-axis is tilted, the supporting force supported by the second protrusion PR2 may be equally applied to the upper and lower sides of the tilting guide unit based on the fourth bisector VL2'. Accordingly, reliability of the tilting guide unit may be improved. Here, the third bisector VL1' is a line that bisects the second surface 1141b in the second direction (Y-axis direction). The fourth bisector VL2' is a line that bisects the second surface 1141b in the first direction (X-axis direction). Also, the second center point C1' may be an intersection of the third bisector line VL1' and the fourth bisector line VL2'. Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilting guide part 1141 .

In addition, the description of the first protrusion PR1 and the second protrusion PR2 may be applied in the same manner as described above. In addition, the shape of the base BS may be variously changed according to the weight or fastening structure of the camera actuator.

22 is a perspective view of the first camera actuator according to the first embodiment in which the shield can and substrate are removed, FIG. 23 is a cross-sectional view taken along line PP' in FIG. 22, and FIG. 24 is a cross-sectional view taken along line QQ' in FIG. 22 am.

22 to 24, the first coil 1152a may be located on the side of the first housing 1121, and the first magnet 1151a may be located on the outer surface 1131S1 of the holder 1131. there is. Accordingly, the first coil 1152a and the first magnet 1151a may be positioned to face each other. The first magnet 1151a may at least partially overlap the first coil 1152a in the second direction (Y-axis direction).

In addition, the second coil 1152b may be located on the side part 1122 of the second housing, and the second magnet 1151b may be located on the outer surface 1131S2 of the holder 1131. Accordingly, the second coil 1152b and the second magnet 1151b may be positioned to face each other. The second magnet 1151b may at least partially overlap the second coil 1152b in the second direction (Y-axis direction).

In addition, the first coil 1152a and the second coil 1152b are overlapped in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b are overlapped in the second direction (Y-axis direction). can be nested with

With this configuration, the electromagnetic force applied to the outer surfaces of the holder (the outer surface of the first holder and the outer surface of the second holder) is located on a parallel axis in the second direction (Y-axis direction), so that the X-axis tilt is accurate and precise. can be performed

In addition, the second protrusions PR2a and PR2b of the tilting guide part 1141 may come into contact with the second member 1126 of the housing 1120 . The second protrusion PR2 may be seated in the second protruding groove PH2 formed on one side of the second member 1126 . Also, when the X-axis tilt is performed, the second protrusions PR2a and PR2b may be reference axes (or rotational axes) of the tilt. Accordingly, the tilting guide unit 1141 and the mover 1130 may move up and down.

Also, the first Hall sensor 1153a may be located outside for electrical connection and coupling with the substrate 1154 as described above. However, it is not limited to these locations.

In addition, the third coil 1152c may be located on the side part 1123 of the third housing, and the third magnet 1151c may be located on the outer surface 1131S3 of the third holder 1131. The third coil 1152c and the third magnet 1151c may overlap at least partially in the first direction (X-axis direction). Accordingly, the strength of the electromagnetic force between the third coil 1152c and the third magnet 1151c can be easily controlled.

As described above, the tilting guide part 1141 may be located on the outer surface 1131S4 of the fourth holder of the holder 1131 . In addition, the tilting guide part 1141 may be seated in the fourth seating groove 1131S4a on the outer surface of the fourth holder. As described above, the fourth seating groove 1131S4a may include the aforementioned first area AR1, second area AR2, and third area AR3.

A first member 1131a may be disposed in the first area AR1. Also, the outer surface of the first member 1131a may be coupled to the second bonding portion EP2 of the elastic member EE. Accordingly, the holder 1131 may apply force from the holder 1131 to the tilting guide 1141 in the same direction as the restoring force RF2 generated by the elastic member EE (RF2').

A second member 1126 may be disposed in the second area AR2 . The second member 1126 may include a second protruding groove PH2. The second protruding groove PH2 may be located on a surface of the second member 1126 facing the holder 1131 .

In addition, the restoring force RF2 generated by the elastic member EE may be applied to the second member 1126 through the above-described path. Accordingly, the restoring forces RF2 and RF2 ′ generated through the elastic member EE may press the tilting guide part 1141 disposed between the second member 1126 and the holder 1131 .

A tilting guide part 1141 may be disposed in the third area AR3. As described above, the tilting guide part 1141 may include the first protrusion PR1 and the second protrusion PR2. In this case, the first protrusion PR1 and the second protrusion PR2 may be disposed on the second surface 1141b and the first surface 1141a of the base BS, respectively. The first protrusion PR1 and the second protrusion PR2 may be variously positioned on the facing surfaces of the base BS. However, it will be described below based on the drawings.

Also, a first protrusion groove PH1 may be located in the holder 1131 . In particular, the first protruding groove PH1 may be located in the fourth seating groove 1131S4a. Also, the first protrusion PR1 may be located in the first protrusion groove PH1. Accordingly, the first protrusion PR1 may at least partially contact the first protrusion groove PH1. Also, as described above, the apex of the first protrusion PR1 may be positioned on the bisector of the junction hole of the second junction.

Also, the maximum diameter of the first protrusion groove PH1 may correspond to the maximum diameter of the first protrusion PR1. This may be equally applied to the second protrusion groove PH2 and the second protrusion PR2. That is, the maximum diameter of the second protrusion groove PH2 may correspond to the maximum diameter of the second protrusion PR2. Also, as a result, the second protrusion PR2 may contact the second protruding groove PH2. With this configuration, the second axis tilt based on the first protrusion PR1 and the first axis tilt based on the second protrusion PR2 can easily occur, and the radius of the tilt can be improved.

In addition, the tilting guide part 1141 is arranged side by side with the first member 1131a and the second member 1126 in the third direction (Z-axis direction), so that the tilting guide part 1141 is the optical member 1132 and the second member 1132. It can be overlapped in one direction (X-axis direction). More specifically, in the embodiment, the first protrusion PR1 may overlap the optical member 1132 in the first direction (X-axis direction). Furthermore, at least a portion of the first protrusion PR1 may overlap the third coil 1152c or the third magnet 1151c in the first direction (X-axis direction). That is, in the camera actuator according to the embodiment, each protrusion, which is a central axis of tilt, may be located adjacent to the center of gravity of the mover 1130. Thus, the tilting guide unit can be located adjacent to the center of gravity of the mover. As a result, the camera actuator according to the embodiment can minimize the moment value for tilting the mover and minimize the amount of current applied to the coil unit to tilt the mover, thereby improving power consumption and device reliability. .

In addition, as described above, the second Hall sensor 1153b positioned inside the third coil 1153c detects a change in magnetic flux, thereby sensing the position between the third magnet 1151c and the second Hall sensor 1153b. can be performed

25 is a diagram illustrating a driving unit according to an embodiment.

Referring to FIG. 25 , as described above, the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a hall sensor unit 1153 and a board unit 1154 .

Also, as described above, the driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c providing driving force by electromagnetic force. The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may be positioned on an outer surface of the prism holder 1131, respectively.

Also, the driving coil 1152 may include a plurality of coils. As an example, the driving coil 1152 may include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

The first coil 1152a may be positioned opposite to the first magnet 1151a. Accordingly, the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side part 1121 as described above. Also, the second coil 1152b may be positioned opposite to the second magnet 1151b. Accordingly, the second coil 1152b may be positioned in the second housing hole 1122a of the second housing side portion 1122 as described above.

The first camera actuator according to the first embodiment rotates the mover 1130 in a first axis (X-axis direction) or a second axis (Y-axis direction) by electromagnetic force between a driving magnet 1151 and a driving coil 1152 By controlling the OIS, it is possible to provide the best optical characteristics by minimizing the occurrence of a decentration or tilt phenomenon.

In addition, according to the embodiment, OIS is implemented through the tilting guide part 1141 of the rotation part 1140 disposed between the housing 1120 and the mover 1130, thereby eliminating the size limitation of the actuator, thereby providing an ultra-slim and compact camera actuator and A camera module including this may be provided.

The substrate portion 1154 may include a first substrate side portion 1154a, a second substrate side portion 1154b, and a third substrate side portion 1154c.

The first substrate side portion 1154a and the second substrate side portion 1154b may face each other. Also, the third substrate side portion 1154c may be positioned between the first substrate side portion 1154a and the second substrate side portion 1154b.

Also, the first substrate side portion 1154a may be positioned between the first housing side portion and the shield can, and the second substrate side portion 1154b may be positioned between the second housing side portion and the shield can. In addition, the third substrate side portion 1154c may be positioned between the third housing side portion and the shield can, and may be a bottom surface of the substrate portion 1154 .

The first substrate side portion 1154a may be coupled to and electrically connected to the first coil 1152a. In addition, the first substrate side portion 1154a may be coupled to and electrically connected to the first Hall sensor 1153a.

The second substrate side 1154b may be coupled to and electrically connected to the second coil 1152b. It should also be understood that the second substrate side 1154b may be coupled to and electrically connected to the first Hall sensor.

The third substrate side portion 1154c may be coupled to and electrically connected to the third coil 1152c. In addition, the third substrate side portion 1154c may be coupled to and electrically connected to the second Hall sensor 1153b.

26 is a diagram illustrating a driving unit according to a modified example.

The first driving unit 1150A includes a driving magnet 1151 , a driving coil 1152 , a hall sensor unit 1153 , a first substrate unit 1154 and a yoke unit 1155 .

In addition, as described above, the driving magnet 1151 may include a first magnet 1151a and a second magnet 1151b providing driving force by electromagnetic force. The first magnet 1151a and the second magnet 1151b may be positioned on an outer surface of the holder 1131, respectively.

Also, as described above, the dummy member DM is described as being included in the driving unit 1150A in the drawings, but it should be understood that it may be a separate member. That is, since the dummy member DM is not disposed to face the coil and does not generate electromagnetic force, it is not a driving source that generates a driving force for tilting in a predetermined direction, for example, the Y axis. However, the dummy member DM may be seated on the outer surface of the holder and positioned symmetrically with the first magnet 1151a in the first or second direction. Also, the dummy member DM may have the same weight as the first magnet 1151a. Accordingly, the dummy member DM compensates for the weight of the first magnet 1151a in the holder so that the weight is concentrated toward the first magnet 1151a when the holder rotates in the second direction (Y-axis direction). that can be prevented In other words, the dummy member DM may improve the accuracy of the Y-axis tilt of the holder 1131 . Furthermore, current efficiency for Y-axis tilt may be improved because coils are not disposed at positions symmetrical to the first coil 1152a in the first and second directions by the dummy member DM. In addition, the overall weight of the first camera actuator according to the first embodiment is reduced, thereby reducing the weight.

Also, the driving coil 1152 may include a plurality of coils. As an example, the driving coil 1152 may include a first coil 1152a and a second coil 1152b.

The first coil 1152a may be positioned opposite to the first magnet 1151a. Accordingly, the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side part 1121 as described above.

Also, since the second housing hole 1122a of the second housing side part 1122 is opened, the weight of the first camera actuator may be reduced. The opening may be positioned to face the dummy member DM.

And, the first camera actuator according to the first embodiment moves the mover 1130 in a first axis (X-axis direction) or a second axis (Y-axis direction) by electromagnetic force between a drive magnet 1151 and a drive coil 1152. By controlling the rotation, it is possible to provide the best optical characteristics by minimizing the occurrence of a decentration or tilt phenomenon when implementing OIS.

In addition, according to the embodiment, OIS is implemented through the tilting guide part 1141 of the rotating part 1140 disposed between the first housing 1120 and the mover 1130, thereby eliminating the size limitation of the actuator and making it an ultra-slim and subminiature camera. An actuator and a camera module including the actuator may be provided.

The first substrate portion 1154 may include a first substrate side portion 1154a, a second substrate side portion 1154b, and a third substrate side portion 1154c.

The first substrate side portion 1154a and the second substrate side portion 1154b may face each other. Also, the third substrate side portion 1154c may be positioned between the first substrate side portion 1154a and the second substrate side portion 1154b.

Also, the first substrate side portion 1154a may be positioned between the first housing side portion and the shield can, and the second substrate side portion 1154b may be positioned between the second housing side portion and the shield can. In addition, the third substrate side portion 1154c may be positioned between the third housing side portion and the shield can, and may be a bottom surface of the first substrate portion 1154 .

The first substrate side portion 1154a may be coupled to and electrically connected to the first coil 1152a. In addition, the first substrate side portion 1154a may be coupled to and electrically connected to the first Hall sensor 1153a.

The second substrate side 1154b may be a dummy substrate.

Furthermore, the third substrate side portion 1154c may be coupled to and electrically connected to the second coil 1152b. In addition, the third substrate side portion 1154c may be coupled to and electrically connected to the second Hall sensor 1153b.

Accordingly, in the first camera actuator according to the first embodiment, an electrical path CPH is formed only on the first substrate side 1154a and the third substrate side 1154c because no electrical connection to the second substrate side 1154b is required. It can be. Accordingly, the length of the electrical connection may be reduced, thereby reducing electrical resistance. That is, current efficiency can be improved.

In addition, a driver dR controlling the amount of current injected into the first coil or the second coil may also be disposed on one of the first substrate side portion 1154a and the third substrate side portion 1154b. Accordingly, electrical resistance may be minimized by minimizing an electrical path.

In addition, the yoke part 1155 may include a first yoke 1155a and a second yoke 1155b. The first yoke 1155a may be positioned in the first seating groove and coupled to the first magnet 1151a. In addition, the second yoke 1155b may be positioned in the third seating groove and coupled to the second magnet 1151b. Additionally, the dummy yoke may be positioned in the second seating groove and coupled to the dummy member DM. The first yoke 1155a and the second yoke 1155b allow the first magnet 1151a and the second magnet 1151b to be easily seated in the first seating groove and the third seating groove and coupled to the housing.

FIG. 27 is a perspective view of the first camera actuator according to the first embodiment, FIG. 28 is a cross-sectional view taken along line SS′ in FIG. 27 , and FIG. 29 is an example of movement of the first camera actuator shown in FIG. 28 .

Referring to FIGS. 27 to 29 , Y-axis tilt may be performed. That is, OIS can be implemented by rotating in the first direction (X-axis direction).

In an embodiment, the third magnet 1151c disposed below the holder 1131 forms an electromagnetic force with the third coil 1152c to tilt or rotate the mover 1130 in the second direction (Y-axis direction) can make it

Specifically, the restoring force of the elastic member EE may be transmitted to the first member 1131a and finally transmitted to the tilting guide part 1141 disposed between the second member 1126 and the holder 1131. Accordingly, the tilting guide part 1141 may be pressed by the mover 1130 and the housing 1120 by the above-described repulsive force.

Also, the second protrusion PR2 may be supported by the second member 1126 . At this time, in an embodiment, the tilting guide part 1141 is based on the second protrusion PR2 protruding toward the second member 1126 as a reference axis (or rotation axis), that is, in the second direction (Y axis direction). Can be rotated or tilted. In other words, the tilting guide part 1141 may rotate or tilt the second protrusion PR2 protruding toward the second member 1126 in the first direction (X-axis direction) about the reference axis (or rotation axis).

For example, the mover 1130 is moved by the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the third coil unit 1152c disposed on the side of the third substrate. OIS may be implemented while rotating (X1->X1a) by a first angle θ1 in the axial direction. In addition, the mover 1130 is moved in the X-axis direction by the first electromagnetic force (F1A, F1B) between the third magnet 1151c disposed in the third seating groove and the third coil unit 1152c disposed on the side of the third substrate. OIS can be implemented while rotating (X1->X1b) at the first angle θ1. The first angle θ1 may be ±1° to ±3°. However, it is not limited thereto. Hereinafter, in the first camera actuator according to various embodiments, the electromagnetic force may generate force in the described direction to move the mover, or may generate force in another direction to move the mover in the described direction. That is, the direction of the described electromagnetic force means the direction of the force generated by the magnet and the coil to move the mover.

FIG. 30 is a perspective view of the first camera actuator according to the first embodiment, FIG. 31 is a cross-sectional view taken along line RR′ in FIG. 30 , and FIG. 32 is an example of movement of the first camera actuator shown in FIG. 31 .

Referring to FIGS. 30 to 32 , X-axis tilt may be performed. That is, OIS can be implemented while the mover 1130 tilts or rotates in the Y-axis direction.

In an embodiment, the first magnet 1151a and the second magnet 1151b disposed on the holder 1131 form electromagnetic force with the first coil 1152a and the second coil 1152b, respectively, in the first direction (X). axial direction), the tilting guide part 1141 and the mover 1130 may be tilted or rotated.

Specifically, the restoring force of the elastic member EE is transmitted to the first member 1131a and the holder 1131, and finally to the tilting guide 1141 disposed between the holder 1131 and the second member 1126. can be conveyed Accordingly, the tilting guide part 1141 may be pressed by the mover 1130 and the housing 1120 by the above-described repulsive force.

In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b are spaced apart in a first direction (X-axis direction) and are formed in the fourth seating groove 1131S4a of the holder 1131. ) can be supported by In addition, in an embodiment, the tilting guide part 1141 uses the first protrusion PR1 protruding toward the holder 1131 (eg, toward the third direction) as a reference axis (or rotation axis), that is, in the first direction (X axial direction), it can be rotated or tilted.

For example, the second electromagnetic force (F2A, OIS can be implemented while rotating the mover 1130 by a second angle (θ2) in the Y-axis direction (Y1->Y1a) by F2B). In addition, the second electromagnetic force (F2A, F2B) between the first and second magnets 1151a and 1151b disposed in the first seating groove and the first and second coil parts 1152a and 1152b disposed on the side of the first and second substrates OIS can be implemented while rotating the mover 1130 at a second angle (θ2) in the Y-axis direction (Y1->Y1b). The second angle θ2 may be between ±1° and 3°. However, it is not limited thereto.

In addition, as described above, the electromagnetic force by the first and second magnets 1151a and 1151b and the first and second coil units 1152a and 1152b may act in the third direction or in a direction opposite to the third direction. For example, the electromagnetic force may be generated in the third direction (Z-axis direction) from the left side of the mover 1130 and act in the opposite direction to the third direction (Z-axis direction) from the right side of the mover 1130. Accordingly, the mover 1130 may rotate based on the first direction. Alternatively, it may move along the second direction.

As such, the second actuator according to the embodiment rotates the mover 1130 in the first direction (X-axis direction) or the second direction (Y-axis direction) by the electromagnetic force between the drive magnet in the holder and the drive coil disposed in the housing By controlling, it is possible to minimize the occurrence of a decentent or tilt phenomenon when implementing OIS and to provide the best optical characteristics. In addition, as described above, 'Y-axis tilt' means rotation or tilt in the first direction (X-axis direction), and 'X-axis tilt' means rotation or tilt in the second direction (Y-axis direction) do.

33 is a perspective view of a first camera actuator according to the second embodiment, FIG. 34 is a view showing a first member in the first camera actuator according to the second embodiment, and FIG. 35 is a view showing a first camera actuator according to the second embodiment. 1 is a top view of the first member in the camera actuator, and FIG. 36 is a side view of the first camera actuator according to the second embodiment.

33 to 36, the first camera actuator 1100A according to the second embodiment includes a shield can, a housing, a mover, a rotating part, an elastic member (EE), a driving part, a first member 1131a, and a second member. (1126) and a damper member. In addition, except for the contents described below, the above contents may be equally applied.

In the first camera actuator 1100A according to the second embodiment, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connecting portion CP.

The member protrusion 1131ap may at least partially overlap the connecting portion CP in an optical axis direction or a third direction (Z-axis direction). In addition, at least a portion of the connection portion CP may be curved to correspond to the outer surface of the member protrusion 1131ap. That is, the connecting portion CP and the member protrusion 1131ap may correspond to each other in an overlapping area in the first direction (X-axis direction) with surfaces or lines facing each other. And the above-mentioned facing surfaces or lines may be curved with each other. Accordingly, the damper member DP1 can be easily coupled to the first member 1131a and the elastic member EE. Furthermore, a phenomenon in which the damper member DP1 is coupled with members other than the first member 1131a and the elastic member EE can be suppressed. Furthermore, due to the above-described curved surface or line, the member protrusion 1131ap may have a region 1131app that protrudes to one side.

In addition, the upper surface 1131apu of the first member 1131a may have a smaller width or length than the lower surface 1131apb in the first direction (X-axis direction). For example, the width or length W5 of the first member 1131a in the first direction (X-axis direction) of the upper surface 1131apu is the width or length W4 of the lower surface 1131apb in the first direction (X-axis direction). may be smaller than

Furthermore, the upper surface 1131apu of the first member 1131a may have a smaller area than the lower surface 1131apb. With this configuration, a coupling area between the damper member DP1 and the elastic member EE is easily secured, and a phenomenon in which the damper member flows down can be easily suppressed.

Also, the height or length d2 of the second coupling part PP2 in the third direction (Z-axis direction) may be smaller than the width or length d1 of the member protrusion 1131ap in the third direction. Accordingly, as described above, the elastic member EE is easily formed with a preload, and the member protrusion 1131ap and the damper member DP1 may be coupled.

Furthermore, the width or length d3 of the coupling base PP2a in the third direction may be smaller than the height or length d2 of the second coupling portion PP2 in the third direction (Z-axis direction).

In addition, the damper member DP1 may be coupled to the member protrusion 1131ap and the connecting portion CP. As a result, the damper member DP1 can suppress vibration at the settling time during rotation of the shaft of the mover. In addition, the damper member DP1 can suppress breakage of the spring due to the resonant frequency. Accordingly, reliability of the first camera actuator according to the embodiment may be improved.

In addition, the member protrusion 1131ap may be positioned between the first coupling portion and the second coupling portion PP2. Specifically, the member protrusion 1131ap may be located in a region spaced apart from the first coupling portion and the second coupling portion PP2 in the second direction (Y-axis direction). For example, the member protrusion 1131ap may be positioned at a point that bisects a region spaced apart in the second direction (Y-axis direction) between the first coupling portion and the second coupling portion PP2 . Accordingly, the vibration damping effect by the damper member DP2 can be further improved.

Also, as an example, the second member 1126 may include a housing protrusion 1126p disposed adjacent to the connecting portion CP.

At least a portion of the connection portion CP may correspond to an outer surface of the housing protrusion 1126p. For example, the connecting portion CP and the housing protrusion 1126p may have opposite surfaces or lines corresponding to each other in an area overlapping each other in the first direction (X-axis direction). And the above-mentioned facing surfaces or lines may be curved with each other. Accordingly, the damper member DP2 can be easily coupled with the second member 1126 and the elastic member EE. Furthermore, a phenomenon in which the damper member DP2 is coupled with members other than the second member 1126 and the elastic member EE can be suppressed. Accordingly, due to the above-described curved surface or line, the housing protrusion 1126p may have a region 1126pp protruding to one side. As a result, the damper member DP2 can suppress vibration at the settling time during rotation of the shaft of the mover. In addition, the damper member DP2 can suppress breakage of the spring due to the resonant frequency. Accordingly, reliability of the first camera actuator according to the embodiment may be improved.

The housing protrusion 1126p may at least partially overlap the connection portion CP in an optical axis direction or a third direction (Z-axis direction). Thus, coupling force between the housing protrusion 1126p and the connecting portion CP by the damper member DP2 can be further improved. Furthermore, escape of the connecting portion CP may be suppressed by the housing protrusion 1126p.

37 is a perspective view of a first camera actuator according to a third embodiment, FIG. 38 is a view showing a first camera actuator according to a third embodiment, and FIG. 39 is a view of a first camera actuator according to a third embodiment. It is a side view.

37 to 39, the first camera actuator 1100B according to the third embodiment includes a shield can, a housing, a mover, a rotating part, an elastic member (EE), a driving part, a first member 1131a, and a second member. (1126) and a damper member. In addition, except for the contents described below, the above contents may be equally applied.

In addition, as described above, the holder 1131 of the mover 1130 may include a mover protrusion 1131p protruding outward or towards the spring from the outer surface 1131S4 of the fourth holder. Also, the number of protrusions 1131ap in the holder 1131 of the mover 1130 may be plural. For example, the mover protrusion 1131p may include a first protrusion 1131ap1 , a second protrusion 1131ap2 , and a third protrusion 1131ap3 . Furthermore, as described above, the damper member DP and the mover or holder 1131 can be easily coupled through the mover protrusion 1131p.

In addition, the first member 1131a may include a member protrusion 1131ap disposed adjacent to the connection portion CP. As described above, the damper member DP1 can be easily coupled to the first member 1131a and the elastic member EE.

In addition, the second member 1126 may include a housing protrusion 1126p disposed adjacent to the connecting portion CP. Accordingly, the damper member DP2 can be easily coupled with the second member 1126 and the elastic member EE.

With this configuration, the elastic member EE can be coupled to the second member (or housing), the first member 1131a, and the holder 1131 or the mover by the damper members DP, DP1, and DP2. Thus, the coupling force between the damper member and each member can be further improved. And by this configuration, vibration at the settling time during rotation of the shaft of the mover can be further suppressed. In addition, the damper member can further suppress breakage of the spring due to the resonance frequency (vibration at the resonance frequency). As a result, durability or reliability of the first camera actuator according to the embodiment may be greatly improved.

40 is a diagram illustrating a first camera actuator according to a modified example.

Referring to FIG. 40 , the first camera actuator according to the modified example includes a shield can, a housing, a mover, a rotating part, an elastic member (EE), a driving part, a first member 1131a, a second member 1126, and a damper member DP. ). In addition, except for the contents described below, the above contents may be equally applied.

First, in the connection part CP of the elastic member EE, each leg of the connection part CP may be disposed adjacent to each other. At this time, the damper member DP3 may couple the legs of the adjacent connecting parts. That is, the leg of the connection part CP may be a branch connecting the first junction part and the second junction part. Furthermore, the above-mentioned legs may be plural. In addition, one leg of the connection part CP may include the above-described first to fourth connection parts.

In addition, the damper member DP3 can be easily coupled to the housing protrusion 1126p or the member protrusion 1131ap of the first member 1131a while coupling the legs of the adjacent connecting parts to each other. Accordingly, the damper member DP3 may engage adjacent legs, legs and housing protrusions, legs and member protrusions, or legs and member protrusions and housing protrusions. As a result, durability or reliability of the first camera actuator according to the embodiment may be greatly improved.

41 is a perspective view of a second camera actuator according to an embodiment, FIG. 42 is an exploded perspective view of the second camera actuator according to an embodiment, FIG. This is a cross-sectional view from EE'.

41 to 44, the second camera actuator 1200 according to the embodiment includes a lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit (not shown) and a second housing 1230. 2 may include a substrate portion 1270 . Furthermore, the second camera actuator 1200 may further include a second shield can (not shown), an elastic part (not shown), and a bonding member (not shown). Furthermore, the second camera actuator 1200 according to the embodiment may further include an image sensor IS.

The second shield can (not shown) is located in one area (eg, outermost) of the second camera actuator 1200, and includes components (lens unit 1220, second housing 1230, elastic unit) described below. (not shown), the second driving part 1250, the base part (not shown), the second substrate part 1270, and the image sensor (IS)) may be positioned to surround it.

The second shield can (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of malfunction in the second driving unit 1250 may be reduced.

The lens unit 1220 may be located in a second shield can (not shown). The lens unit 1220 may move in a third direction (Z-axis direction). Accordingly, the above-described AF function may be performed.

Specifically, the lens unit 1220 may include a lens assembly 1221 and a bobbin 1222 .

The lens assembly 1221 may include one or more lenses. In addition, the number of lens assemblies 1221 may be plural, but hereinafter, only one will be described.

The lens assembly 1221 is coupled to the bobbin 1222 and may move in a third direction (Z-axis direction) by electromagnetic force generated from the fourth magnet 1252a and the second magnet 1252b coupled to the bobbin 1222. .

The bobbin 1222 may include an opening area surrounding the lens assembly 1221 . Also, the bobbin 1222 may be coupled to the lens assembly 1221 by various methods. In addition, the bobbin 1222 may include a groove on a side surface, and may be coupled to the fourth magnet 1252a and the second magnet 1252b through the groove. A bonding member or the like may be applied to the groove.

In addition, the bobbin 1222 may be coupled with elastic parts (not shown) at the upper and rear ends. Thus, the bobbin 1222 may be supported by an elastic part (not shown) while moving in the third direction (Z-axis direction). That is, while the position of the bobbin 1222 is maintained, it may be maintained in the third direction (Z-axis direction). The elastic part (not shown) may be made of a leaf spring.

The second housing 1230 may be disposed between the lens unit 1220 and a second shield can (not shown). Also, the second housing 1230 may be disposed to surround the lens unit 1220 .

A hole may be formed at a side of the second housing 1230 . A fourth coil 1251a and a fifth coil 1251b may be disposed in the hole. The hole may be positioned to correspond to the groove of the bobbin 1222 described above.

The fourth magnet 1252a may be positioned to face the fourth coil 1251a. Also, the second magnet 1252b may be positioned to face the fifth coil 1251b.

The elastic part (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). A first elastic member (not shown) may be coupled to the upper surface of the bobbin 1222 . The second elastic member (not shown) may be coupled to the lower surface of the bobbin 1222 . In addition, the first elastic member (not shown) and the second elastic member (not shown) may be formed as leaf springs as described above. Also, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for movement of the bobbin 1222 .

The second driving unit 1250 may provide driving forces F3 and F4 for moving the lens unit 1220 in the third direction (Z-axis direction). The second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252 .

The lens unit 1220 may move in the third direction (Z-axis direction) by the electromagnetic force formed between the second driving coil 1251 and the second driving magnet 1252 .

The second driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in a hole formed at a side of the second housing 1230 . Also, the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate 1270 . Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive current or the like through the second substrate 1270 .

The second driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be disposed in the aforementioned groove of the bobbin 1222 and may be positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

The base part (not shown) may be positioned between the lens part 1220 and the image sensor IS. Components such as filters may be fixed to the base portion (not shown). Also, a base part (not shown) may be disposed to surround the image sensor IS. With this configuration, since the image sensor IS is freed from foreign substances, the reliability of the device can be improved.

Also, the second camera actuator may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator may support one or a plurality of lenses and perform an autofocusing function or a zooming function by moving the lens according to a control signal from a predetermined control unit.

And the second camera actuator may be a fixed zoom or continuous zoom. For example, the second camera actuator may provide movement of the lens assembly 1221 .

In addition, the second camera actuator may include a plurality of lens assemblies. For example, the second camera actuator includes at least one of a first lens assembly (not shown), a second lens assembly (not shown), a third lens assembly (not shown), and a guide pin (not shown). can be placed. In this regard, the above information may be applied. Accordingly, the second camera actuator may perform a high-magnification zooming function through the driving unit. For example, the first lens assembly (not shown) and the second lens assembly (not shown) may be moving lenses that move through a driving unit and a guide pin (not shown), and the third lens The assembly (not shown) may be a fixed lens, but is not limited thereto. For example, the third lens assembly (not shown) may perform the function of a focator that forms light at a specific location, and the first lens assembly (not shown) is a third lens assembly that is a focuser. (not shown) may perform a variator function of re-imaging an image formed elsewhere. On the other hand, in the first lens assembly (not shown), the distance to the subject or the image distance may be greatly changed so that the magnification change may be large. can play an important role in On the other hand, the image formed by the first lens assembly (not shown), which is a variable magnifier, may be slightly different depending on the location. Accordingly, the second lens assembly (not shown) may perform a position compensation function for an image formed by a variable magnifier. For example, the second lens assembly (not shown) has a compensator function that serves to accurately form an image formed by the first lens assembly (not shown), which is a variable magnifier, at an actual image sensor position. can be done

The image sensor IS may be located inside or outside the second camera actuator. As an embodiment, as shown, the image sensor IS may be located inside the second camera actuator. The image sensor IS may receive light and convert the received light into an electrical signal. Also, the image sensor IS may include a plurality of pixels in an array form. Also, the image sensor IS may be positioned on the optical axis.

45 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

As shown in FIG. 45 , the mobile terminal 1500 of the embodiment may include a camera module 1000, a flash module 1530, and an autofocus device 1510 provided on the rear side.

The camera module 1000 may include an image capturing function and an auto focus function. For example, the camera module 1000 may include an auto focus function using an image.

The camera module 1000 processes an image frame of a still image or a moving image obtained by an image sensor in a photographing mode or a video call mode.

The processed image frame may be displayed on a predetermined display unit and may be stored in a memory. A camera (not shown) may also be disposed on the front of the mobile terminal body.

For example, the camera module 1000 may include a first camera module 1000A and a second camera module 1000B, and the first camera module 1000A may implement OIS along with an AF or zoom function. can Also, AF, zoom, and OIS functions may be performed by the second camera module 1000b. In this case, since the first camera module 1000A includes both the first camera actuator and the second camera actuator described above, the camera device or camera module can be easily miniaturized by changing an optical path.

The flash module 1530 may include a light emitting element emitting light therein. The flash module 1530 may be operated by camera operation of the mobile terminal or user's control.

The autofocus device 1510 may include one of the packages of a surface light emitting laser device as a light emitting unit.

The autofocus device 1510 may include an autofocus function using a laser. The autofocus device 1510 may be mainly used in a condition in which an autofocus function using an image of the camera module 1000 is degraded, for example, a proximity of 10 m or less or a dark environment.

The autofocus device 1510 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit such as a photodiode that converts light energy into electrical energy.

46 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

For example, FIG. 46 is an external view of a vehicle equipped with a vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.

Referring to FIG. 46 , a vehicle 700 according to the embodiment may include wheels 13FL and 13FR rotating by a power source and a predetermined sensor. The sensor may be the camera sensor 2000, but is not limited thereto.

The camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied. The vehicle 700 of the embodiment may obtain image information through the camera sensor 2000 that captures a front image or a surrounding image, determines a lane unidentified situation using the image information, and generates a virtual lane when the lane is not identified. can do.

For example, the camera sensor 2000 may obtain a front image by capturing the front of the vehicle 700, and a processor (not shown) may obtain image information by analyzing an object included in the front image.

For example, when objects such as lanes, adjacent vehicles, driving obstacles, and indirect road markings such as median strips, curbs, and roadside trees are captured in an image captured by the camera sensor 2000, the processor detects these objects. and can be included in the image information. At this time, the processor may acquire distance information with the object detected through the camera sensor 2000 to further supplement the image information.

The image information may be information about an object photographed in an image. The camera sensor 2000 may include an image sensor and an image processing module.

The camera sensor 2000 may process a still image or moving image obtained by an image sensor (eg, CMOS or CCD).

The image processing module may process a still image or moving image acquired through an image sensor, extract necessary information, and transmit the extracted information to a processor.

In this case, the camera sensor 2000 may include a stereo camera to improve object measurement accuracy and further secure information such as a distance between the vehicle 700 and the object, but is not limited thereto.

Although the above has been described with reference to the embodiments, this is only an example and does not limit the present invention, and those skilled in the art to which the present invention belongs will not deviate from the essential characteristics of the present embodiment. It will be appreciated that various variations and applications are possible. For example, each component specifically shown in the embodiment can be modified and implemented. And differences related to these modifications and applications should be construed as being included in the scope of the present invention as defined in the appended claims.

Claims (20)

housing;
a mover disposed within the housing;
a tilting guide part disposed between the housing and the mover;
a driving unit disposed in the housing and driving the mover;
an elastic member for bringing the tilting guide part into close contact with the mover; and
A camera actuator comprising: a damper member disposed between at least one of the mover and the housing and the elastic member.
According to claim 1,
The mover includes a seating groove for accommodating the tilting guide,
A camera actuator comprising: a first member accommodated in the seating groove, disposed outside the tilting guide unit, and coupled to the mover.
According to claim 2,
A camera actuator comprising: a second member, at least a portion of which is disposed between the tilting guide part and the first member and coupled to the housing;
According to claim 3,
The first member and the second member are accommodated in the seating groove of the camera actuator.
According to claim 3,
The elastic member may include a first junction connected to the housing; a second bonding portion connected to the first member; and a connection part connecting the first junction part and the second junction part.
According to claim 5,
The mover includes a plurality of mover protrusions protruding toward the elastic member,
The damper member is disposed in a mover groove located between the plurality of mover protrusions and contacts the mover.
According to claim 6,
The camera actuator according to claim 1 , wherein the connection part is at least partially disposed in the mover groove and contacts the damper member.
According to claim 6,
The protrusion includes a first protrusion and a second protrusion spaced apart from each other along a first direction,
The connecting portion passes through the mover groove,
The mover groove is a camera actuator positioned between the first protrusion and the second protrusion.
According to claim 8,
The camera actuator comprising: a third protrusion, wherein the protrusion is disposed inside the mover groove.
According to claim 9,
The camera actuator of claim 1 , wherein a height of the third protrusion is lower than a height of the first protrusion or the second protrusion.
According to claim 5,
The first member includes a member protrusion disposed adjacent to the connecting portion.
According to claim 11,
The member protrusion is at least partially overlapped with the connecting portion in the optical axis direction,
The camera actuator according to claim 1 , wherein at least a portion of the connecting portion is curved to correspond to an outer surface of the protrusion of the member.
According to claim 11,
The damper member is a camera actuator coupled to the member protrusion and the connecting portion.
According to claim 13,
The camera actuator of claim 1 , wherein the member protrusion is positioned between the first joining portion and the second joining portion.
According to claim 14,
The second member includes a housing protrusion disposed adjacent to the connection part.
According to claim 15,
The camera actuator according to claim 1 , wherein the housing protrusion overlaps at least a portion of the connecting portion in an optical axis direction.
According to claim 15,
The camera actuator according to claim 1 , wherein at least a portion of the connecting portion is curved to correspond to an outer surface of the housing protrusion.
According to claim 17,
The damper member is coupled to the housing protrusion and the connection part camera actuator.
According to claim 18,
The camera actuator of claim 1 , wherein the housing protrusion overlaps at least a portion of the damper member along a first direction.
According to claim 5,
The camera actuator according to claim 1 , wherein the damper member is coupled to the legs of the connection part.

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