KR20240033646A - Camera actuator and camera module comprising the same - Google Patents

Abstract

Embodiments of the present invention include a housing; a first lens assembly moving in the optical axis direction with respect to the housing; a cheek portion located in the first lens assembly; and a driving unit that moves the first lens assembly, wherein the first lens assembly includes a receiving unit having a lens hole for accommodating a plurality of lenses. and a guiding portion in which the first lens assembly is in contact with the receiving portion and where the ball portion is located, and the axis of the lens hole is disposed to be offset from an outer surface of the guiding portion adjacent to the ball portion.

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 pictures or videos of a subject, and is mounted on portable devices, drones, vehicles, etc. To improve image quality, the camera module has an Image Stabilization (IS) function that corrects or prevents image shaking caused by the user's movement, and automatically adjusts the gap between the image sensor and lens to align the focal length of the lens. It can have an auto focusing (AF) function and a zooming function that increases or decreases the magnification of a distant subject through a zoom lens.

However, in order to accurately perform zooming functions, autofocus (AF), etc. within the camera module, the straightness of the moving lens assembly or corresponding correction is required.

The technical problem to be solved by embodiments of the present invention is to provide a camera actuator and a camera device that improve optical straightness according to the bending of the lens assembly.

Additionally, embodiments of the present invention can provide a camera actuator and camera device with improved reliability through shock absorption of the lens assembly.

The technical problem that the present invention aims to solve is to provide a camera actuator applicable to ultra-slim, ultra-small and high-resolution cameras.

The problem to be solved in the embodiment is not limited to this, and also includes purposes and effects that can be understood from the means of solving the problem or the embodiment described below.

A camera actuator according to an embodiment of the present invention includes a housing; a first lens assembly moving in the optical axis direction with respect to the housing; a cheek portion located in the first lens assembly; and a driving unit that moves the first lens assembly, wherein the first lens assembly includes a receiving unit having a lens hole for accommodating a plurality of lenses. And the first lens assembly includes a 'guiding part' that contacts the receiving part and where the ball part is located, and the axis of the lens hole is arranged to be offset from the outer surface of the guiding part adjacent to the ball part.

The upper surface of the receiving part may be non-perpendicular to the outer surface of the guiding part adjacent to the ball part.

The upper surface of the receiving part and the outer surface of the guiding part adjacent to the ball part may form a first angle.

It may include a lens group disposed in the lens hole of the first lens assembly.

The upper surface of the accommodation unit and a surface perpendicular to the axis of the lens group may form a second angle.

The first angle and the second angle may have the same size.

The axis of the lens group may be parallel to the optical axis direction.

The upper surface of the receiving portion includes a first end located on one side and a second end located on the other side in a direction perpendicular to the optical axis direction, and the upper surface of the lens group includes a third end and a second end located on one side in a direction perpendicular to the optical axis direction. It may include a fourth end located at.

A separation distance between the first end and the second end in the optical axis direction may be greater than a separation distance between the third end and the fourth end in the optical axis direction.

The first end may be located at a front end of the second end, and the third end may overlap the fourth end in a direction perpendicular to the optical axis direction.

It may include a first adjustment member disposed on the bottom of the receiving portion.

The first adjustment member may be disposed on a bisector line of the first lens assembly in a first direction perpendicular to the optical axis direction.

The first lens assembly may include a second adjustment member spaced apart from the first adjustment member.

The first adjustment member and the second adjustment member may have different lengths in the optical axis direction.

The first lens assembly may include a lens protrusion that contacts the accommodating part and corresponds to the guiding part, wherein the guiding part is located on one side of the accommodating part, and the lens protrusion may be located on the other side of the accommodating part. .

According to an embodiment of the present invention, a camera actuator and a camera device that improve optical straightness according to the bending of the lens assembly are implemented.

Additionally, embodiments of the present invention can implement a camera actuator and camera device with improved reliability through shock absorption of the lens assembly.

The technical problem that the present invention aims to solve can be implemented as a camera actuator applicable to ultra-slim, ultra-small and high-resolution cameras.

The various and beneficial advantages and effects of the present invention are not limited to the above-described content, and may be more easily understood through description of specific embodiments of the present invention.

1 is a perspective view of a camera module according to an embodiment,
Figure 2 is an exploded perspective view of a camera module according to an embodiment,
Figure 3 is a view viewed from AA' in Figure 1,
4 is a perspective view of a second camera actuator according to an embodiment;
5 is an exploded perspective view of a second camera actuator according to an embodiment;
Figure 6 is a cross-sectional view taken along line DD' in Figure 4,
7 and 8 are diagrams explaining each operation of the lens assembly according to an embodiment,
9 is a diagram explaining the operation of the second camera actuator according to the embodiment;
Figure 10 is a perspective view of a partial configuration of a second camera actuator according to an embodiment;
11 is a perspective view of a first lens assembly (or second lens assembly) according to an embodiment;
12 is a front view of a first lens assembly (or second lens assembly) according to an embodiment;
13 is a side view of a first lens assembly (or second lens assembly) according to an embodiment;
14 is a rear view of a first lens assembly (or second lens assembly) according to an embodiment;
15 is another side view of the first lens assembly (or second lens assembly) according to the embodiment;
16A is a perspective view of a measuring device according to an embodiment;
16B is a side view of a measuring device according to an embodiment,
16C is another side view of the measuring device according to the embodiment;
17A is a perspective view of a measuring ball, a measuring device, and a first lens assembly according to an embodiment;
Figure 17b is a side view of Figure 17a;
Figure 17c is a partially cut-off view of Figure 17b.
17D is a diagram explaining a measurement method using a measurement device according to an embodiment,
Figure 17e is a diagram showing various shapes of a lens assembly according to an embodiment;
17F to 17H are diagrams illustrating the tilt angle in the measurement method using the measuring device according to the embodiment;
Figure 17i is a cutaway view and an enlarged view of the second camera actuator according to the embodiment;
18 is another side view of a first lens assembly (or second lens assembly) according to an embodiment;
Figure 19 is a perspective view cut along CC' in Figure 18,
Figure 20 is a view taken along line CC' in Figure 18,
Figure 21 is a view showing the lens group in Figure 18 accommodated,
22 is a diagram of a first lens assembly and a second lens assembly according to an embodiment;
Figure 23 is a view cut along EE' in Figure 22,
24 is a schematic diagram showing a circuit board according to an embodiment;
Figure 25 is a perspective view of a mobile terminal to which a camera module is applied according to an embodiment;
Figure 26 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

Since the present invention can be subject to various changes and can have various embodiments, specific embodiments will be 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 changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms containing 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 used only to distinguish one component from another. For example, the second component may be referred to as the first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as the second component. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

Hereinafter, embodiments will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

FIG. 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 view viewed from line AA' in FIG. 1.

Referring to FIGS. 1 and 2 , the camera module 1000 according to the 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 the first actuator, and the second camera actuator 1200 may be used interchangeably as the second actuator.

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

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

And 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 (axis of incident light).

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

The first camera actuator 1100 can change the path of light. In an embodiment, the first camera actuator 1100 may vertically change the optical path through an internal optical member (eg, a prism or mirror). For example, the optical member may change light from the first direction (X-axis direction) to the third direction (Z-axis direction). Alternatively, the optical member may change light from the first axis to the second axis. With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal is placed within the mobile terminal through a change in the optical path, so that magnification, auto focusing (AF), zoom, and OIS functions can be performed. You can.

However, it is not limited to this and the first camera actuator 1100 can change the optical path vertically or at a predetermined angle multiple times.

The second camera actuator 1200 may be placed behind the first camera actuator 1100. The second camera actuator 1200 may be combined with the first camera actuator 1100. And mutual bonding can be achieved in various ways.

Additionally, the second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator 1200 supports one or more lenses and can perform an auto-focusing function or a zooming function by moving the lenses according to a control signal from a predetermined control unit.

And one or more lenses move independently or individually along the optical axis direction to

The circuit board 1300 may be placed 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. Additionally, there may be a plurality of circuit boards 1300.

A camera module according to an embodiment may be composed of a single or multiple 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 multiple actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200.

Additionally, the second camera module may be placed in a predetermined housing (not shown) and may include an actuator (not shown) capable of driving the lens unit. The actuator may be a voice coil motor, micro actuator, silicon actuator, etc., and may be applied in various ways such as electrostatic method, thermal method, bimorph method, and electrostatic force method, but is not limited thereto. Additionally, in this specification, the camera actuator may be referred to as an actuator, etc. Additionally, a camera module consisting of a plurality of camera modules can be mounted in various electronic devices such as mobile terminals. Furthermore, an actuator may be a device that moves or tilts a lens or optical member. However, hereinafter, the actuator will be described as including a lens or optical member. Furthermore, the actuator may be called a 'lens transfer device', 'lens transfer device', 'optical member transfer device', 'optical member transfer device', etc.

Referring to FIG. 3, the camera module according to the embodiment includes a first camera actuator 1100 performing an OIS function, and a second camera actuator 1200 performing a zooming function and an auto-focusing (AF) function. can do.

Light may be incident into the camera module or the first camera actuator through an opening area located on the upper surface of the first camera actuator 1100. That is, light is primarily incident into the interior of the first camera actuator 1100 along a vertical direction (e.g., can be changed. Then, the light may pass through the second camera actuator 1200 and be incident on the image sensor IS located at one end of the second camera actuator 1200 (PATH). In this specification, the Z-axis direction or the third direction is described as the optical axis direction as follows. The optical axis direction may correspond to a direction from the first camera actuator to the second camera actuator (or image sensor), or from the second camera actuator to the image sensor. Alternatively, it may correspond to the direction in which the moving assembly moves in the second camera actuator. Additionally, the first direction, the X-axis direction, will be described as a vertical direction. And the second direction, the Y-axis direction, is explained as the horizontal direction.

In this specification, the bottom refers to one side in the first direction. And the first direction is the X-axis direction in the drawing and can be used interchangeably with the second axis direction. The second direction is the Y-axis direction in the drawing and can be used interchangeably with the first axis direction. The second direction is perpendicular to the first direction. Additionally, 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 and second directions. 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 directions perpendicular to the optical axis. In addition, in the description of the first and second camera actuators below, the optical axis direction is the third direction (Z-axis direction), and the description below will be based on this.

Additionally, in this specification, the inside may be a direction from the cover CV toward the first camera actuator, and the outside may be a direction opposite to the inside. That is, the first camera actuator and the second camera actuator may be located inside the cover (CV), and the cover (CV) may be located outside the first camera actuator or the second camera actuator.

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

In addition, the camera module according to the embodiment can implement OIS through control of the optical path through the first camera actuator, thereby minimizing the occurrence of decenter or tilt phenomenon and providing the best optical characteristics. I can pay it.

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, and a third lens assembly.

also. The second camera actuator 1200 is equipped with a coil and a magnet and can perform a high-magnification zooming function and an autofocus function.

For example, the first lens assembly and the second lens assembly may be moving lenses that move through a coil, magnet, and guide pin, and the third lens assembly may be a fixed lens, but the lens assembly is not limited thereto.

Meanwhile, when the OIS actuator and the AF/Zoom actuator are arranged according to an embodiment of the present invention, magnetic field interference with the AF/Zoom magnet can be prevented when OIS is driven. 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.

In particular, in the first camera actuator 1100, the optical member RM may be tilted along the X-axis or tilted along the Y-axis. Accordingly, the optical path can be easily changed according to the X-axis tilt or Y-axis tilt.

The optical member RM may be seated on a holder of the first camera actuator. In an embodiment, the optical member RM may be made of a mirror or prism. Hereinafter, a prism is shown, but as in the above-described embodiment, it may be composed of a plurality of lenses. Alternatively, the optical member RM may be composed of a plurality of lenses, prisms, or mirrors. Additionally, the optical member RM may include a reflection portion disposed therein. However, it is not limited to this.

By driving a VCM or the like in the first camera actuator 1100, the optical member RM may be tilted along the X-axis or tilted along the Y-axis. That is, OIS may be implemented while the optical member RM is tilted or rotated based on the Y-axis direction or the X-axis direction.

Figure 4 is a perspective view of a second camera actuator according to an embodiment, Figure 5 is an exploded perspective view of a second camera actuator according to an embodiment, Figure 6 is a cross-sectional view taken along line DD' in Figure 4, and Figures 7 and 8 is a diagram explaining the operation of each lens assembly according to an embodiment, and FIG. 9 is a diagram explaining the operation of the second camera actuator according to the embodiment.

Referring to FIGS. 4 to 6, the second camera actuator 1200 (or camera device or zoom lens transfer device or zoom lens transfer device or lens transfer device) according to the embodiment includes a lens unit 1220, a housing 1230, and a yoke. It may include a unit 1240, a driving unit 1250, a base unit 1260, a substrate unit 1270, and stoppers ST1 and ST2. Furthermore, the second camera actuator 1200 may further include a shield can (not shown), an elastic part (not shown), and a joining member (not shown).

Additionally, as will be described later, the lens group may move along the optical axis direction. And the lens group can be combined with the lens assembly and move together along the optical axis direction. At this time, the second camera actuator may include a moving part that moves in the optical axis direction like the lens group, and a fixed part that does not move along the optical axis and is relatively fixed, unlike the moving part. In this embodiment, the moving unit may include a lens assembly (eg, first and second lens assemblies) and an optical driving magnet (first and second driving magnets). And the fixing part may include a housing, a substrate part, an optical drive coil (first and second coils), and a Hall sensor. Furthermore, a driving magnet may be placed on either the moving part or the fixed part, and a driving coil may be placed on the other part. The moving distance of the lens assembly, which will be described later in response to this description, may correspond to the moving distance of the moving unit.

The shield can (not shown) is located in one area (e.g., the outermost) of the second camera actuator 1200, and is used for components described later (lens unit 1220, housing 1230, drive unit 1250, and base). It may be positioned to surround the unit 1260, the substrate unit 1270, and the image sensor (IS) disposed on the circuit board at the rear end.

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

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

Additionally, the lens unit 1220 may be located within the housing 1230. Accordingly, at least a portion of the lens unit 1220 may move along the optical axis direction or the third direction (Z-axis direction) within the housing 1230.

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

First, the lens group 1221 may include at least one lens. Additionally, there may be a plurality of lens groups 1221, but the description below will be based on one lens group.

The lens group 1221 is coupled to the moving assembly 1222 and moves in the third direction (Z-axis direction) by electromagnetic force generated from the first magnet 1252a and the second magnet 1252b coupled to the moving assembly 1222. You can.

In an embodiment, the lens group 1221 may include a first lens group 1221a, a second lens group 1221b, and a third lens group 1221c. The first lens group 1221a, the second lens group 1221b, and the third lens group 1221c may be sequentially arranged along the optical axis direction. Furthermore, the lens group 1221 may further include a fourth lens group. The fourth lens group may be disposed behind the third lens group 1221c.

The first lens group 1221a may be fixed by combining with the 2-1 housing (or fixing assembly). In other words, the first lens group 1221a may not move along the optical axis direction.

The second lens group 1221b can be combined with the first lens assembly 1222a and move in the third direction or the optical direction. Magnification adjustment may be performed by moving the first lens assembly 1222a and the second lens group 1221b.

The third lens group 1221c can be combined with the second lens assembly 1222b and move in the third direction or the optical axis direction. Focus adjustment or auto focusing can be performed by moving the third lens group 1221.

However, the number of lens groups is not limited, and the above-described fourth lens group may not be present, or additional lens groups other than the fourth lens group 1121d may be further disposed.

The moving assembly 1222 may include an opening area surrounding the lens group 1221. This moving assembly 1222 is used interchangeably with the first and second lens assemblies. The moving assembly 1222 or the lens assembly can move along the optical axis direction (Z-axis direction) within the housing 1230. And the moving assembly 1222 can be combined with the lens group 1221 in various ways. Additionally, the moving assembly 1222 may include a groove on its side, and may be coupled to the first magnet 1252a and the second magnet 1252b through the groove. A coupling member, etc. may be applied to the groove.

Additionally, the moving assembly 1222 may be coupled with elastic portions (not shown) at the top and rear ends. Accordingly, the moving assembly 1222 moves in the third direction (Z-axis direction) and may be supported by an elastic unit (not shown). That is, the position of the moving assembly 1222 can be maintained in the third direction (Z-axis direction). The elastic portion (not shown) may be made of various elastic elements such as leaf springs.

The moving assembly 1222 is located within the housing 1230 and may include a first lens assembly 1222a and a second lens assembly 1222b.

The area where the third lens group is seated in the second lens assembly 1222b may be located at the rear end of the first lens assembly 1222a. In other words, the area where the third lens group 1221c is seated in the second lens assembly 1222b may be located between the image sensor and the area where the second lens group 1221b is seated in the first lens assembly 1222a. there is.

The first lens assembly 1222a and the second lens assembly 1222b may face a first guide part and a second guide part, respectively. The first guide part and the second guide part may be located on the first side 1232a and the second side 1232b of the housing 1230 (or the 2-2 housing), which will be described later. The first guide part and the second guide part may be disposed integrally or separately on the first side 1232a and the second side 1232b of the housing 1230 (or the 2-2 housing), which will be described later. Below, the description will be based on the integrated type.

Additionally, optical driving magnets may be seated on the outer surfaces of the first lens assembly 1222a and the second lens assembly 1222b. For example, the second magnet 1252b may be seated on the outer surface of the second lens assembly 1222b. A first magnet 1252a may be seated on the outer surface of the first lens assembly 1222a. In this specification, the first lens assembly 1222a may be used interchangeably with ‘first bobbin’. The second lens assembly 1222b may be used interchangeably with ‘second bobbin’.

The housing 1230 may be disposed between the lens unit 1220 and the shield can (not shown). And the housing 1230 may be arranged to surround the lens unit 1220.

The housing 1230 may include a 2-1 housing 1231, a 2-2 housing 1232, and a cover base (CB). The 2-1 housing 1231 can be combined with the first lens group 1221a and can also be combined with the first camera actuator described above. The 2-1 housing 1231 may be located in front of the 2-2 housing 1232. The 2-1 housing may be called a 'fixed assembly', a 'fixed lens assembly', a 'fixed lens accommodating portion', etc. The 2-2 housing may be called 'main barrel', 'lens barrel', 'barrel', etc.

And the 2-2 housing 1232 may be located at the rear end of the 2-1 housing 1231. The first and second lens assemblies and the lens unit 1220 may be seated inside the 2-2 housing 1232.

The housing 1230 (or the 2-2 housing 1232) may have a hole formed on a side. A first coil 1251a and a second coil 1251b may be disposed in the hole. The hole may be located to correspond to the groove of the moving assembly 1222 described above. At this time, there may be a plurality of first coils 1251a and second coils 1251b.

In an embodiment, the housing 1230 (particularly, the 2-2 housing 1232) may include a first side 1232a and a second side 1232b. The first side 1232a and the second side 1232b may be positioned to correspond to each other. For example, the first side 1232a and the second side 1232b may be arranged symmetrically with respect to the third direction. Optical driving coils 1251 may be located on the first side 1232a and the second side 1232b. Additionally, the substrate portion 1270 may be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. In other words, the first substrate may be located on the outer surface of the first side 1232a, and the second substrate may be located on the outer surface of the second side 1232b.

The cover base (CB) may be disposed between the 2-1 housing 1231 and the 2-2 housing 1232. The cover base (CB) may prevent the lens (eg, first lens group) disposed or accommodated in the 2-1 housing 1231 (or fixing assembly) from being damaged by impact. That is, the cover base (CB) can absorb the impact of the mobile assembly when the mobile assembly within the 2-2 housing 1232 is moved. Furthermore, the cover base CB may include a 1-1 stopper ST1a and a 1-2 stopper ST1b, which will be described later, on the rear or lower surface of the cover base CB. For example, the 1-1 stopper (ST1a) and the 1-2 stopper (ST1b) may be located between the cover base (CB) and the moving assembly (eg, the first lens assembly). Accordingly, the moving assembly may primarily contact the 1-1 stopper (ST1a) and the 1-2 stopper (ST1b). Accordingly, the reliability of the lens group can be improved.

Furthermore, the cover base CB may be coupled to the 2-1 housing 1231 and the 2-2 housing 1232 by a joining member (eg, epoxy). Accordingly, by adjusting the shape of the cover base (CB), combination with the 2-1 housing 1231 and the 2-2 housing 1232 can be easily achieved. Additionally, by adding the cover base (CB), ease of manufacturing of at least one of the 2-1 housing 1231 and the 2-2 housing 1232 can be ensured.

The first guide part and the second guide part may be located on the first side 1232a and the second side 1232b of the housing 1230 (particularly, the 2-2 housing 1232).

The first guide portion and the second guide portion may be positioned to correspond to each other. For example, the first guide part and the second guide part may be positioned opposite to each other based on the third direction (Z-axis direction). Additionally, at least a portion of the first guide portion and the second guide portion may overlap each other in the second direction (Y-axis direction).

The first guide portion and the second guide portion may include at least one groove (eg, guide groove) or recess. And the first ball (B1) or the second ball (B2) can be seated in the groove or recess.

First, the second camera actuator 1200 may further include a cheek portion. And the ball portion may include a first ball (B1) and a second ball (B2). By the ball portion, the first and second lens assemblies can move along the optical axis direction. At this time, the ball part may include at least one rolling member and a ball. And at least one ball can move along the guide grooves of the first and second guide parts. Additionally, at least one ball may move along the recess or groove of the first and second lens assemblies. Accordingly, the first ball B1 or the second ball B2 can move in the third direction (Z-axis direction) within the guide groove of the first guide part or the guide groove of the second guide part.

Or, the first ball B1 or the second ball B2 is positioned along a rail formed inside the first side 1232a of the housing 1230 or a rail formed inside the second side 1232b of the housing 1230. Can move in 3 directions.

Accordingly, the first lens assembly 1222a and the second lens assembly 1222b can move in the third direction or the optical axis direction. At this time, the second lens assembly 1222b may be disposed adjacent to or closer to the image sensor than the first lens assembly 1222a.

According to the embodiment, the first ball B1 may contact the first lens assembly 1222a. The second ball B2 may contact the second lens assembly 1222b. Accordingly, depending on the location, the first ball B1 may at least partially overlap the second ball B2 along the first direction (X-axis direction).

Additionally, the first guide portion and the second guide portion may include a first guide groove facing the first recess (RS1). Additionally, the first guide part and the second guide part may include a second guide groove facing the second recess RS2.

Additionally, there may be a plurality of first or second guide grooves. Additionally, a plurality of balls with at least partially different diameters may be located within the plurality of guide grooves.

The second magnet 1252b may be positioned to face the second coil 1251b. Additionally, the first magnet 1252a may be positioned to face the first coil 1251a.

For example, at least one of the first coil 1251a and the second coil 1251b may be composed of at least one coil. For example, the first coil 1251a may be composed of a plurality of coils. The second coil 1251b may be composed of a plurality of coils. Furthermore, even when the first coil and the second coil are one coil, a long stroke described later can be implemented.

In an embodiment, the optical driving coil 1251 may be composed of sub-coils sequentially arranged along the optical axis direction (Z-axis direction). For example, a plurality of sub-coils may be sequentially arranged in the optical axis direction on each side of the main barrel 1232. The 2-2 housing can be used interchangeably with the ‘main barrel’.

In this embodiment, the optical driver (or driver, 1250) may include a first driver and a second driver. The first driving unit may provide driving force to move the first lens assembly 1222a along the optical axis direction. The first driving unit may include a first coil 1251a and a first magnet 1252a. Additionally, the first driving unit may include a first driving coil and a first driving magnet. Accordingly, the first coil 1251a may be referred to as a ‘first driving coil’. And the first magnet 1252a may be called a ‘first driving magnet’.

And the second driving unit may provide driving force to move the second lens assembly 1222b along the optical axis direction. The second driving unit may include a second coil 1251b and a second magnet 1252b.

Additionally, the second driving unit may include a second driving coil and a second driving magnet. Accordingly, the second coil 1251b may be called a ‘second driving coil’. And the second magnet 1252b may be called a ‘second driving magnet’.

The elastic unit (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to the upper surface of the moving assembly 1222. The second elastic member (not shown) may be coupled to the lower surface of the moving assembly 1222. Additionally, the first elastic member (not shown) and the second elastic member (not shown) may be formed of leaf springs as described above. Additionally, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for movement of the moving assembly 1222. However, it is not limited to the above-described positions, and the elastic portion may be placed in various positions.

Additionally, the driving unit 1250 may provide driving force to move the lens unit 1220 in the third direction (Z-axis direction). This driving unit 1250 may include an optical driving coil 1251 and an optical driving magnet 1252. The optical drive coil 1251 and the optical drive magnet 1252 may be positioned to face each other. For example, the first driving coil 1251a and the first driving magnet 1252a may be positioned to face each other. Additionally, the second driving coil 1251b and the second driving magnet 1252b may be positioned to face each other. The first driving coil 1251a may be disposed on one side of the housing along the second direction, and the second driving coil 1251a may be disposed on the other side of the housing along the second direction.

Furthermore, the driving unit 1250 may further include a Hall sensor unit. The Hall sensor unit 1253 includes at least one first Hall sensor 1253a and a second Hall sensor 1253b, and may be located inside or outside the optical drive coil 1251.

The moving assembly may move in the third direction (Z-axis direction) by the electromagnetic force formed between the optical driving coil 1251 and the optical driving magnet 1252.

The optical driving coil 1251 may include a first coil 1251a and a second coil 1251b. Additionally, as described above, the first coil 1251a and the second coil 1251b may be composed of a plurality of sub-coils. Additionally, the first coil 1251a and the second coil 1251b may be disposed in a hole formed on the side of the housing 1230. And the first coil 1251a and the second coil 1251b may be electrically connected to the substrate portion 1270. Accordingly, the first coil 1251a and the second coil 1251b can receive current, etc. through the substrate portion 1270.

Additionally, the optical drive coil 1251 may be coupled to the substrate portion 1270 through a yoke or the like.

Additionally, in an embodiment, the optical drive coil 1251 is a fixed element together with the substrate portion 1270. In contrast, the optical driving magnet 1252 is a moving element that moves in the optical axis direction (Z-axis direction) together with the first and second assemblies.

The optical driving magnet 1252 may include a first magnet 1252a and a second magnet 1252b.

In an embodiment, the first coil 1251a may include a first sub-coil (SC1a) and a second sub-coil (SC2a). The first sub-coil (SC1a) and the second sub-coil (SC2a) may be sequentially arranged in the optical axis direction. The first sub-coil (SC1a) may be located closer to the first camera actuator than the second sub-coil (SC2a).

And the second coil 1251b may include a third sub-coil (SC1b) and a fourth sub-coil (SC2b). The third sub-coil (SC1b) and the fourth sub-coil (SC2b) may be sequentially arranged in the optical axis direction. The third sub-coil (SC1b) may be located closer to the first camera actuator than the fourth sub-coil (SC2b).

And the first magnet 1252a may face the first sub-coil (SC1a) and the second sub-coil (SC2a). The second magnet 1252b may face the third sub-coil (SC1b) and the fourth sub-coil (SC2b). The first sub-coil (SC1a) may be positioned to overlap the third sub-coil (SC1b) in the second direction. The second sub-coil (SC2a) may be positioned to overlap the fourth sub-coil (SC2b) in the second direction. In this way, the first magnet 1252a and the second magnet 1252b can be equally arranged to face the two sub-coils.

Furthermore, the coils of the first and second driving units in the second camera actuator may be described as including first sub-coils (SC1a, SC1b) and second sub-coils (SC2a, SC2b). However, within the specification, the sub-coil that drives the second lens assembly will be described interchangeably as a third sub-coil and a fourth sub-coil.

The first sub-coil (SC1a) and the second sub-coil (SC2a) may be arranged to be spaced apart from each other in the optical axis direction. The first sub-coil (SC1a) and the second sub-coil (SC2a) may be connected in parallel to each other. For example, one of the one end and the other end of the first subcoil (SC1a) may be connected to one of the one end and the other end of the second subcoil (SC2a) as a node. Additionally, the other one of the first and second ends of the first subcoil (SC1a) may be connected to another node of the second subcoil (SC2a). That is, the current applied to the first sub-coil (SC1a) and the second sub-coil (SC2a) may be distributed to each sub-coil. Accordingly, the first sub-coil (SC1a) and the second sub-coil (SC2a) are electrically connected in parallel, thereby reducing heat generation.

In addition, the polarity of one side of the first driving magnet 1252a facing the first driving coils SC1a and SC2a is the polarity of one side of the second driving magnet 1252b facing the second driving coils SC1b and SC2b. may be the same. For example, the inner surface of the first driving magnet 1252a and the inner surface of the second driving magnet 1252b may have either an N pole or an S pole (eg, an N pole). The outer surface of the first driving magnet 1252a and the outer surface of the second driving magnet 1252b may have one of the N pole and the S pole (eg, S pole). Here, the inner side may be a side adjacent to the optical axis based on the optical axis, and the outer side may be a side farthest from the optical axis. Additionally, the first magnet 1252a may have a first pole on the first surface BSF1 facing the optical driving coil (eg, first coil). Additionally, the first magnet 1252a may have a second pole on the second surface BSF2, which is opposite to the first surface BSF1. The second magnet 1252b may have a first pole on the first surface BSF1 facing the optical driving coil (eg, second coil). Additionally, the second magnet 1252b may have a second pole on the second surface BSF2, which is opposite to the first surface BSF1. The first pole may be either an N pole or an S pole. And the second pole may be the other one of the N pole and the S pole.

Alternatively, the first driving magnet and the second driving magnet may have a structure in which N-pole/S-pole or S-pole/N-pole are sequentially arranged along the optical axis direction.

Additionally, the third sub-coil (SC1b) and the fourth sub-coil (SC2b) may be arranged to be spaced apart from each other in the optical axis direction. The third sub-coil (SC1b) and fourth sub-coil (SC2b) may be connected in parallel to each other. For example, one of the one end and the other end of the third subcoil (SC1b) may be connected to one of the one end and the other end of the fourth subcoil (SC2b) as a node.

The first magnet 1252a and the second magnet 1252b may be placed in the above-described groove of the moving assembly 1222 and may be positioned to correspond to the first coil 1251a and the second coil 1251b. Additionally, the optical drive magnet 1252 may be combined with the first and second lens assemblies (or moving assemblies) along with a yoke to be described later.

The yoke portion 1240 may be disposed on the substrate portion 1270. The yoke portion 1240 can maintain the posture of the first and second lens assemblies by forming an attractive force with adjacent magnets. That is, the yoke portion 1240 may provide holding force for the moving assembly. The yoke part 1240 may include a first yoke part 1241 and a second yoke part 1242. The first yoke portion 1241 may be disposed on the first substrate 1271. The second yoke portion 1242 may be disposed on the second substrate 1272.

The base unit 1260 may be located between the lens unit 1220 and the image sensor in the circuit board. Components such as a filter may be fixed to the base portion 1260. Additionally, the base portion 1260 may be arranged to surround the image sensor described above. With this configuration, the image sensor is free from foreign substances, etc., so the reliability of the device can be improved. However, this will be removed and explained in some drawings below.

Additionally, the second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator supports one or more lenses and can perform an auto-focusing function or a zoom function by moving the lenses 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 group 1221.

In addition, the second camera actuator may be comprised of a plurality of lens assemblies. For example, the second camera actuator may include at least one of a third lens assembly (not shown), and a guide pin (not shown) in addition to the first lens assembly 1222a and the second lens assembly 1222b. . The above-described content may be applied to this. Accordingly, the second camera actuator can perform a high-magnification zooming function through the driving unit.

The image sensor may be located inside or outside the second camera actuator. In an embodiment, as shown, the image sensor may be located outside the second camera actuator. For example, the image sensor may be located on a circuit board. An image sensor can receive light and convert the received light into an electrical signal. Additionally, the image sensor may consist of a plurality of pixels in an array form. And the image sensor may be located on the optical axis.

The substrate portion 1270 may be in contact with the side of the housing. For example, the substrate portion 1270 is located on the outer surface (first side) of the first side of the housing, particularly the 2-2 housing, and the outer surface (second side) of the second side, 2 It can be in contact with the side.

The second camera actuator includes a first stopper (ST1a, ST1b) disposed at one end (or front end) within the housing (or 2-2 housing 1232) and a second stopper (ST2a, ST2a, ST1b) disposed at the other end (or rear end). ST2b) may further be included.

The first stopper (ST1) may be located at one end of the housing. For example, the first stopper ST1 may be located at an end of the 2-2 housing or the main barrel 1232 in a direction opposite to the optical axis direction. In an embodiment, the first stopper ST1 may be located on the inner wall or inner wall of the housing or the main barrel 1232. The first stopper ST1 may be located on a first inner wall among the first and second inner walls facing each other along the optical axis direction in the main barrel 1232. Additionally, the first stopper (ST1) may include a 1-1 stopper (ST1a) disposed on one side and a 1-2 stopper (ST1b) disposed on the other side. For example, the 1-1 stopper ST1a may be placed on one side of the first inner wall. And the 1-2 stopper (ST1b) may be disposed on the other side of the first inner wall. The 1-1 stopper (ST1a) may be located adjacent to the first side. The 1-2 stopper (ST1b) may be located adjacent to the second side. One side and the other side may mean one side and its opposite side in a second direction.

Alternatively, the 1-1 stopper ST1a may overlap the guiding part of the first lens assembly in the optical axis direction. The 1-2 stopper ST1b may overlap the lens protrusion of the first lens assembly in the optical axis direction.

Additionally, the first stopper ST1 may further include first to third stoppers disposed on the other side of the main barrel 1232. The 1-3 stoppers may be positioned to overlap the guiding part of the second lens assembly 1222b in the optical axis direction.

Additionally, the second stopper ST2 may be disposed at the other end of the 2-2 housing or the main barrel 1232. For example, the second stopper ST2 may be located at an end of the 2-2 housing or the main barrel 1232 in the optical axis direction. In an embodiment, the second stopper ST2 may be located on the inner wall or inner wall of the housing or the main barrel 1232. The second stopper ST2 may be located on a second inner wall among the first and second inner walls facing each other along the optical axis direction in the main barrel 1232. The first inner wall may be adjacent to the first camera actuator or the first lens assembly. The second inner wall may be adjacent to the image sensor.

Additionally, the second stopper (ST2) may include a 2-1 stopper (ST2a) disposed on one side and a 2-2 stopper (ST2b) disposed on the other side. The 2-1 stopper (ST2a) may be located adjacent to the first side. The 2-2 stopper (ST2b) may be located adjacent to the second side. For example, the 2-1 stopper ST2a may be placed on one side of the first inner wall. And the 2-2 stopper (ST2b) may be disposed on the other side of the first inner wall.

Referring to FIGS. 7 and 8, electromagnetic force will be described below based on one coil. In the camera device according to the embodiment, electromagnetic force (DEM1) is generated between the first magnet (1252a) and the first coil (1251a), so that the first lens assembly (1222a) is aligned or parallel to the optical axis, that is, in the third direction (Z axis). direction) or in a direction opposite to the third direction, it can move along a rail located on the inner side of the housing through the first ball B1. At this time, the first magnet 1252a and the second magnet 1252b do not move to the area facing the edges of the first and second sub-coils. Accordingly, electromagnetic force is formed based on the flow of current in adjacent areas of the first subcoil and the second subcoil.

As described above, in the camera device according to the embodiment, the first magnet 1252a may be provided in the first lens assembly 1222a by, for example, a unipolar magnetization method. For example, in an embodiment, the surface (first surface) facing the outer surface of the first magnet 1252a may be the S pole. And the outer surface of the first magnet 1252a may be the surface facing the first coil 1251a. And the first side and the opposite side may be the N pole. Accordingly, only one of the N pole and the S pole can be positioned to face the first coil 1251a. Here, the description will be based on the fact that the outer surface of the first magnet 1252a is the S pole. Furthermore, the first coil 1251a is composed of a plurality of sub-coils, and currents may flow in opposite directions in the plurality of sub-coils. That is, the current may flow at the same level as 'DE1' in the area adjacent to the second sub-coil (SC2a) in the first sub-coil (SC1a).

In other words, the current direction of the first area of the first subcoil SC1a and the second area of the second subcoil SC2a may be the same. The first area of the first sub-coil (SC1a) overlaps the first driving magnet 1252a in a direction perpendicular to the optical axis direction (second direction) and is disposed perpendicular to the optical axis direction (e.g., disposed along the first direction). ) area. The second area of the second sub-coil Sc2a overlaps the first driving magnet 1252a in a direction perpendicular to the optical axis direction (second direction) and is disposed perpendicular to the optical axis direction (e.g., disposed along the first direction). ) area.

In addition, as shown, in the embodiment, magnetic force is applied from the S pole of the first magnet 1252a in the second direction (Y-axis direction), and a current is applied from the first coil 1251a in the first direction (X-axis direction). When (DE1) flows, electromagnetic force (DEM1) may act in the third direction (Z-axis direction) according to the interaction of electromagnetic force (e.g., Fleming's left-hand rule).

At this time, since the first coil 1251a is fixed to the side of the housing, the first lens assembly 1222a on which the first magnet 1252a is disposed moves in the Z-axis direction by electromagnetic force DEM1 according to the current direction. can move in the opposite direction. That is, the optical drive magnet can move in the opposite direction of the electromagnetic force applied to the optical drive coil. Additionally, the direction of electromagnetic force may change depending on the current of the coil and the magnetic force of the magnet.

Accordingly, the first lens assembly 1222a can move along the rail located on the inner surface of the housing through the first ball in the third direction or in a direction parallel to the optical axis direction (both directions). At this time, the electromagnetic force (DEM1) can be controlled in proportion to the current (DE1) applied to the first coil (1251a).

The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first or second ball rests. Additionally, the first lens assembly 1222a or the second lens assembly 1222b may include a second recess RS2 in which the first or second ball rests. There may be a plurality of first recesses (RS1) and second recesses (RS2). The length of the first recess RS1 may be preset in the optical axis direction (Z-axis direction). Additionally, the length of the second recess RS2 may be preset in the optical axis direction (Z-axis direction). Accordingly, the movement distance of the first ball and the second ball in the direction of the optical axis within each recess can be adjusted. In other words, the first recess (RS1) or the second recess (RS2) may be a stopper for the first and second balls.

And in the camera device according to the embodiment, the second magnet 1252b may be provided in the second lens assembly 1222b by, for example, a unipolar magnetization method.

Furthermore, the first coil 1251a is composed of a plurality of sub-coils, and currents may flow in opposite directions in the plurality of sub-coils. That is, the current may flow at the same level as 'DE1' in the area adjacent to the second sub-coil (SC2a) in the first sub-coil (SC1a).

Additionally, in the embodiment, either the N pole or the S pole of the second magnet 1252b may be positioned to face the second coil 1251b. And in the embodiment, the surface (first surface) facing the outer surface of the second magnet 1252b may be the S pole. Additionally, the first side may be the N pole. Hereinafter, the description will be made based on the fact that the first side as shown is the N pole.

Furthermore, the second coil 1251b is composed of a plurality of sub-coils, and currents may flow in opposite directions in the plurality of sub-coils. That is, the current may flow at the same level as 'DE2' in the area of the first sub-coil (SC1b) adjacent to the second sub-coil (SC2b).

In the embodiment, the magnetic force (DM2) is applied in the second direction (Y-axis direction) from the first surface (N pole) of the second magnet 1252b, and in the first direction from the second coil 1251b corresponding to the N pole. When the current DE2 flows in the (X-axis direction), the electromagnetic force (DEM2) may act in the third direction (Z-axis direction) according to the interaction of electromagnetic force (e.g., Fleming's left-hand rule).

At this time, since the second coil 1251b is fixed to the side of the housing, the second lens assembly 1222b on which the second magnet 1252b is disposed moves in the Z-axis direction by the electromagnetic force (DEM2) according to the direction of the current. can move in the opposite direction. For example, as described above, the direction of electromagnetic force may change depending on the current of the coil and the magnetic force of the magnet. Accordingly, the second lens assembly 1222b can move along the rail located on the inner surface of the housing through the second ball B2 in a direction parallel to the third direction (Z-axis direction). At this time, the electromagnetic force (DEM2) can be controlled in proportion to the current (DE2) applied to the second coil (1251b).

Referring to FIG. 9, in the camera device according to the embodiment, the driving unit provides driving force to move the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 along the third direction (Z-axis direction). (F3A, F3B, F4A, F4B) can be provided. As described above, this driving unit may include an optical driving coil 1251 and an optical driving magnet 1252. Additionally, the lens unit 1220 can move along the third direction (Z-axis direction) due to the electromagnetic force formed between the optical drive coil 1251 and the optical drive magnet 1252.

At this time, the first coil 1251a and the second coil 1251b may be disposed in holes formed on the sides (eg, first side and second side) of the housing 1230. And the second coil 1251b may be electrically connected to the second substrate 1272. The first coil 1251a may be electrically connected to the first substrate 1271. Accordingly, the first coil 1251a and the second coil 1251b may receive a driving signal (eg, current) from a driving driver on the circuit board of the circuit board 1300 through the substrate portion 1270.

At this time, the first lens assembly 1222a on which the first magnet 1252a is seated moves in the third direction (Z-axis direction) due to the electromagnetic force (F3A, F3B) between the first coil 1251a and the first magnet 1252a. You can move along. Additionally, the second lens group 1221b mounted on the first lens assembly 1222a may also move along the third direction.

And, by the electromagnetic force (F4A, F4B) between the second coil (1251b) and the second magnet (1252b), the second lens assembly (1222b) on which the second magnet (1252b) is seated moves in the third direction (Z-axis direction). You can move along. Additionally, the third lens group 1221c mounted on the second lens assembly 1222b may also move along the third direction.

Accordingly, as described above, the focal length or magnification of the optical system can be changed by moving the second lens group 1221b and the third lens group 1221c. In an embodiment, magnification may be changed by moving the second lens group 1221b. In other words, zooming can be achieved. Additionally, the focus can be adjusted by moving the third lens group 1221c. In other words, auto focusing can be achieved.

Furthermore, the first Hall sensor 1253a and the second Hall sensor 1253b may be disposed in at least one of the first subcoil and the second subcoil. For example, the first Hall sensor 1253a and the second Hall sensor 1253b may overlap in the second direction. Alternatively, the first Hall sensor 1253a and the second Hall sensor 1253b may not overlap in the second direction. Alternatively, the first Hall sensor 1253a and the second Hall sensor 1253b may partially overlap in the second direction.

As the first lens assembly is driven, the first lens assembly 1222a may be positioned as close as possible to the first stoppers ST1a and ST1b. At this time, the distance between the guiding part and the 1-1 stopper ST1a in the first lens assembly 1222a may decrease. Additionally, the distance between the 1-2 stopper ST1b and the lens protrusion of the first lens assembly may also be reduced.

That is, when the first lens assembly 1222a moves maximum toward the first camera actuator, the first lens assembly 1222a may collide with the 1-1 stopper (ST1a) and the 1-2 stopper (ST1b). The 1-1 stopper and the 1-2 stopper may collide simultaneously or sequentially as the first lens assembly moves. In this embodiment, the 1-1 stopper and the 1-2 stopper may collide simultaneously with the movement of the first lens assembly.

Accordingly, even if a lens made of glass is disposed within (e.g., the frontmost) the first lens assembly 1222a (or the second lens assembly), the maximum movement position (mecha) of the first lens assembly 1222a (or the second lens assembly) position) can be minimized. In other words, the phenomenon of lens breaking can be suppressed. For example, at least one of the first lens assembly and the second lens assembly may include a lens including glass. And the glass may be located outermost within the first lens assembly or the second lens assembly.

As a modified example, in the event of a sequential collision, shock absorption occurs primarily in the guiding part, which has a large volume, etc., thereby minimizing damage to the first lens assembly.

Likewise, it may collide with the 2-2 stopper (ST2b) and the second lens assembly (1222b). That is, when the second lens assembly 1222b moves maximum in the direction of the image sensor or optical axis, the second lens assembly 1222b may collide with the 2-2 stopper (ST2b) and the 2-1 stopper (ST2a). . Accordingly, even if a lens made of glass is placed in the second lens assembly 1222b, collision at the maximum movement position (mecha position) of the first lens assembly 1222a can be minimized. In other words, the phenomenon of lens breaking can be suppressed. The same applies to the modified example.

In other words, when the first lens assembly 1222a moves, the 1-1 stopper ST1a and the 1-2 stopper ST1b may contact the first lens assembly 1222a. When the first lens assembly 1222a moves maximum from mecha to mecha, the first lens assembly 1222a may come into contact with the first stoppers ST1a and ST1b. For example, the first lens assembly 1222a may move to an end in the direction of the optical axis or to an end in a direction opposite to the direction of the optical axis. At this time, the first lens assembly 1222a may move to a point in contact with the first stopper or the second stopper. For example, when the first lens assembly 1222a moves, the camera module may be in a tele or wide state. When the first lens assembly 1222a is in contact with the first stopper, it may be in a wide state, and when the first lens assembly 1222a is in contact with the second stopper, it may be in a tele state. It can change in various ways depending on the operation.

By using this first stopper, the impact of movement of the first lens assembly 1222a and the second lens assembly 1222b can be reduced. As a result, as described above, the reliability of the first lens assembly 1222a and the second lens assembly 1222b and the reliability of the second and third lens groups inside can be improved. Furthermore, the movement range of the first lens assembly 1222a and the second lens assembly 1222b is limited, so that accurate magnification, etc. can be achieved.

Figure 10 is a perspective view of a partial configuration of a second camera actuator according to an embodiment.

Referring to FIG. 10, the first lens assembly 1222a and the second lens assembly 1222b may be arranged to be spaced apart in the optical axis direction (Z-axis direction).

The second guide part may be disposed opposite to the first guide part. In an embodiment, the first guide part and the second guide part may overlap at least partially in the second direction (Y-axis direction). With this configuration, the space efficiency of the driving unit for moving the first and second lens assemblies within the second camera actuator is improved, making it possible to easily miniaturize the second camera actuator.

As described above, the first ball and the first coil may be disposed adjacent to the first guide portion, and the second ball and the second coil may be disposed adjacent to the second guide portion as described above.

Additionally, according to the embodiment, each of the first and second lens assemblies 1222a and 1222b may include yokes YK1 and YK2 disposed on the sides.

The first yoke YK1 may be located on the side of the first lens assembly 1222a. The second yoke YK2 may be located on the side of the second lens assembly 1222b. At least a portion of the first yoke (YK1) and the second yoke (YK2) may extend outward. Accordingly, the first yoke YK1 may surround at least a portion of the side surface of the first magnet 1252a. As shown, the first yoke YK1 may have various structures surrounding the inner surface and a portion of the side surface of the first magnet 1252a. For example, the first yoke YK1 is made of divided members, and each divided member may be located on the inner and side surfaces of the first magnet 1252a. Accordingly, the coupling force between the unipolarly magnetized optical drive magnet and the yoke can be improved. Likewise, the second yoke YK2 may surround at least a portion of the side surface of the second magnet 1252b. As shown, the second yoke YK2 may have various structures surrounding the inner surface and a portion of the side surface of the second magnet 1252b. For example, the second yoke YK2 is made of divided members, and each divided member may be located on the inner and side surfaces of the second magnet 1252b.

Furthermore, the yoke may be positioned to engage not only the optical drive magnet but also the optical drive coil.

And a plurality of balls may be located on the outer surface of the lens assembly. As described above, the first ball may be located on the outer surface of the first lens assembly 1222a. The second ball may be located on the outer surface of the second lens assembly 1222b.

The first ball and the second ball may be comprised of a plurality of balls. For example, a plurality of first balls may be arranged side by side along the optical axis direction (Z-axis direction) in one recess of the first lens assembly 1222a. Additionally, a plurality of second balls may be arranged side by side along the optical axis direction (Z-axis direction) in one recess of the second lens assembly 1222b.

For example, the second ball B2 may include a first sub ball B2a, a second sub ball B2b, and a third sub ball B2c. The first sub-ball (B2a), the second sub-ball (B2b), and the third sub-ball (B2c) may be arranged side by side along the optical axis direction. Accordingly, the first sub-ball B2a, the second sub-ball B2b, and the third sub-ball B2c may at least partially overlap each other in the optical axis direction.

And the first serve ball (B2a) and the second serve ball (B2b) may be located at the edges of the plurality of balls. The third sub-ball (B2c) may be located between the first sub-ball (B2a) and the second sub-ball (B2b).

The plurality of balls may have the same or different diameters. For example, at least some of the first sub-ball B2a, the second sub-ball B2b, and the third sub-ball B2c may have the same diameters R1, R3, and R2. Additionally, the first sub-ball (B2a), the second sub-ball (B2b), and the third sub-ball (B2c) may have different diameters (R1, R3, and R2).

In an embodiment, the diameters (R1, R3) of the balls located on the edges (the first and second sub balls) may be smaller than the diameters (R2) of the balls located on the inside (the third sub balls) among the plurality of balls. For example, the diameters (R1, R3) of the first sub-ball (B2a) and the second sub-ball (B2b) may be smaller than the diameter (R2) of the third sub-ball (B2c). With this configuration, movement of the lens assembly by the plurality of balls can be performed accurately without tilting to one side.

This description of the plurality of balls can be equally applied to the first ball.

Additionally, as described above, the optical driving magnet may be comprised of a plurality of first magnets and second magnets. Additionally, the first magnet and the second magnet may face each other and have the same polarity disposed on the outside. That is, the first surface (outer surface) of the first magnet and the first surface (outer surface) of the second magnet may have a first pole. And the second surface (inner surface) of the first magnet and the second surface (inner surface) of the second magnet may have a second pole.

FIG. 11 is a perspective view of a first lens assembly (or second lens assembly) according to an embodiment, FIG. 12 is a front view of a first lens assembly (or second lens assembly) according to an embodiment, and FIG. 13 is a perspective view of a first lens assembly (or second lens assembly) according to an embodiment. Figure 14 is a side view of a first lens assembly (or second lens assembly) according to an embodiment, Figure 14 is a rear view of the first lens assembly (or second lens assembly) according to an embodiment, and Figure 15 is a first lens according to an embodiment. Another side view of the assembly (or second lens assembly),

FIG. 16A is a perspective view of a measuring device according to an embodiment, FIG. 16B is a side view of a measuring device according to an embodiment, FIG. 16C is another side view of a measuring device according to an embodiment, and FIG. 17A is a measuring ball according to an embodiment. , a perspective view of the measuring device and the first lens assembly, FIG. 17b is a side view of FIG. 17a, FIG. 17c is a partial cutaway view of FIG. 17b, and FIG. 17d illustrates a measuring method using a measuring device according to an embodiment. 17E is a diagram illustrating various shapes of a lens assembly according to an embodiment, FIGS. 17F to 17H are diagrams illustrating the tilt angle in a measurement method using a measuring device according to an embodiment, and FIG. 17I is an implementation It is a cutaway view and an enlarged view of the second camera actuator according to an example, FIG. 18 is another side view of the first lens assembly (or second lens assembly) according to the embodiment, and FIG. 19 is CC' in FIG. 18. It is a perspective view cut away, FIG. 20 is a view cut along CC' in FIG. 18, FIG. 21 is a view showing a lens group accommodated in FIG. 18, and FIG. 22 is a first lens assembly and a second lens assembly according to an embodiment. , and FIG. 23 is a view taken by cutting along EE' in FIG. 22.

Referring to FIG. 11, as described above, the first lens assembly 1222a and the second lens assembly 1222a may move in the optical axis direction or the third direction (Z-axis direction). Hereinafter, the description will be based on the first lens assembly 1222a, but the description of the first lens assembly may be equally applied to the second lens assembly 1222a. Furthermore, the first lens assembly 1222a and the second lens assembly 1222a may be arranged side by side along the optical axis, and each guiding part may be located on a side facing each other. For example, the first lens assembly 1222a and the second lens assembly 1222a may be positioned upside down or in a corresponding form with respect to the optical axis.

And at least one of the first lens assembly 1222a and the second lens assembly 1222b may include a receiving part (lens holder, LAH1) for accommodating a lens, a guiding part GP, and a lens protrusion LP. Hereinafter, the description will be based on the first lens assembly 1222a as described above.

The receiving portion or first lens holder (LAH1) includes a first lens hole (LH1). Hereinafter, it will be described as the receiving part (LAH1). And a lens may be disposed in the first lens hole (LH1). That is, the first lens hole LH1 can accommodate a lens. At this time, there may be a plurality of lenses, for example, at least one may be made of glass or the like.

Furthermore, the guiding part GP may be in contact with the receiving part LAH1 and a ball part may be disposed. As described above, the ball portion may include a first ball and a second ball. And the first ball and the second ball can be positioned or seated in the first lens assembly 1222a and the guide groove. Accordingly, when a driving force (eg, electromagnetic force) is generated by the driving unit, the first lens assembly 1222a can move along the optical axis direction by the rolling motion of the first ball and the second ball.

The lens protrusion LP may contact the receiving part LAH1 and correspond to the guiding part GP.

In an embodiment, the guiding part GP may be located on one side or part of the receiving part LAH1. And the lens protrusion LP may be located on the other side or the other side of the receiving portion LAH1. For example, the guiding part GP may be located on the opposite side of the lens protrusion LP with respect to the receiving part LAH1.

Additionally, the lens protrusion LP according to the embodiment may include a plate LP1 and a support part LP2. The plate LP1 may be located at the front of the support part LP2. And the support part LP2 is connected to the plate LP1 and may be located at the rear end of the plate LP1. Here, the front end refers to the end in the direction opposite to the optical axis direction, and the rear end refers to the end in the optical axis direction.

And the height Wa of the plate LP1 may be greater than the height Wb of the support part LP2. Here, the height corresponds to the length in the first direction (X-axis direction). Furthermore, the thickness THb of the lens protrusion LP or support LP2 may decrease along the optical axis. Here, the thickness corresponds to the length in the second direction (Y-axis direction). Furthermore, the length corresponds to the length in the third direction (Z-axis direction). With this structure, the plate LP1 can be easily taken out while maintaining its support. In addition, the support force in the first pin groove located in the plate LP1 is improved, so that flatness can be easily maintained during extraction.

Additionally, the length of the plate LP1 according to the embodiment may be shorter than the length of the support part LP2. Accordingly, ease of extraction and holding power can be further improved.

Additionally, the guiding part GP according to the embodiment may include a side plate GPa and a wing part GPb. The wing portion (GPb) can be in contact with both the side plate (GPa) and the receiving portion (LAH1). The thickness (THa) of the wing portion (GPb) may decrease along the optical axis direction. Additionally, there may be a plurality of wing portions (GPb). With this configuration, extraction can be easily performed while maintaining the support force for the side plate (GPa). In addition, the support force in the second pin groove located in the side plate (GPa) is improved, so that flatness can be easily maintained when taking out.

Furthermore, a retainer RT1 may be located on the first outer surface MM1 of the first lens assembly 1222a. The first lens assembly and the second lens assembly may have retainers positioned on outer surfaces (first and second outer surfaces) facing each other. The retainer (RT1) may be coupled to the first outer surface (MM1) through a protrusion/groove structure. Furthermore, a joining member containing epoxy or the like may be applied to the first outer surface MM1. As a result, the coupling force between the first outer surface MM1 and the retainer RT1 can be improved. This retainer (RT1) can prevent the lens located in the first lens hole (LH1) from falling off. Furthermore, a plurality of grooves or protrusions may be formed on the first outer surface (MM!). In addition, a plurality of marks (eg, grooves) may be located on the side of the first lens assembly 1222a in the first direction. The positions of the first and second lens assemblies are recognized through the mark, and the driving of the first and second lens assemblies can be inspected using the recognition.

Referring to FIGS. 12 to 14 , in an embodiment, the lens protrusion LP may include a first pin groove LPG disposed on the upper surface LPU of the plate LP1. The first pin groove (LPG) may be located at the center of the upper surface (LPU) of the plate (LP1). For example, the first pin groove (LPG) may be located in a portion or line that bisects the upper surface (LPU) of the plate (LP1) in the first direction (X-axis direction). Additionally, the center (LPM) of the first pin groove (LPG) may be located on a line bisecting the upper surface (LPU) of the plate (LP1) in the first direction (X-axis direction). The shape of the first pin groove (LPG) may be of various shapes, such as circular or block. For example, the shape of the first pin groove (LPG) may correspond to the shape of the push pin.

The first pin groove (LPG) may overlap the support part (LP2) in the optical axis direction or the third direction (Z-axis direction). With this configuration, the flatness of the first lens assembly can be maintained even if force is applied by the push pin to the first pin groove (LPG) side where the push pin is in close contact for extraction.

Additionally, the guiding part (GP) may include a second pin groove (GPG) disposed on the upper surface (GPU) of the guiding part (GP). There may be a plurality of second pin grooves (GPG). For example, the second pin groove (GPG) may include a 2-1 pin groove (GPG1), a 2-2 pin groove (GPG2), and a 2-3 pin groove (GPG3). The 2-3 pin groove (GPG3) may be located between the 2-1 pin groove (GPG1) and the 2-2 pin groove (GPG2). Furthermore, the 2-1 pin groove (GPG1), the 2-2 pin groove (GPG2), and the 2-3 pin groove (GPG3) may overlap each other along the first direction (X-axis direction).

In addition, the plurality of second pin grooves (GPG) may all have the same separation distance (Wc, Wd) from adjacent second pin grooves. As a result, the force applied to the second pin groove (GPG) is uniformly applied to the guiding part, and bending of the guiding part can be suppressed.

Additionally, according to an embodiment, the length Lb of the guiding part GP in the third direction may be greater than the length La of the lens protrusion LP in the third direction. Conversely, the length La of the lens protrusion LP may be smaller than the length Lb of the guiding part GP.

In addition, the upper surface (GPU) of the guiding part (GP) may be located at the front of the upper surface (LPU) of the lens protrusion (LP). Additionally, the lower surface (GPB) of the guiding part (GP) may be disposed at the rear end of the lower surface (LPB) of the lens protrusion (LP). Additionally, the length of the guiding part GP in the first direction may be greater than the length of the lens protrusion LP in the first direction. Accordingly, the guiding part GP may be longer in both the first and third directions compared to the lens protrusion LP.

Corresponding to the shapes of the guiding portion (GP) and the lens protrusion (LP), the number of second pin grooves (GPG) may be greater than the number of first pin grooves (LPG). With this configuration, even when force is applied to the plurality of second pin grooves (GPG) by push pins, the straightness or flatness of the guiding part (GP) can be maintained. Accordingly, the guiding part or the first lens assembly can accurately move along the Z-axis direction through the ball part located in the recess of the guiding part GP. In other words, the occurrence of optical axis distortion can be suppressed by zooming or autofocus moving along the optical axis.

Furthermore, at least a portion of the first pin groove (LPG) and the second pin groove (GPG) may overlap. For example, the first pin groove (LPG) and the second pin groove (GPG) may overlap in the second direction (Y-axis direction). For example, the 2-3 pin groove (GPG3) may overlap the first pin groove (LPG) in the second direction.

Additionally, the first pin groove (LPG) may be located at the rear end of the second pin groove (GPG). As a result, even when force is applied to the lens protrusion LP and the guiding part GP, bending due to differences in shape or size can be suppressed.

Additionally, the wing portion (GPb) may overlap the second pin groove (GPG) in the optical axis direction (Z-axis direction). For example, the plurality of wings GPb may overlap each of the plurality of second pin grooves GPG in the optical axis direction. With this configuration, even if force is applied by the push pin to the second pin groove side where the push pin is in close contact for extraction, the flatness of the first lens assembly, especially the flatness of the guiding portion GP where the ball is placed, can be maintained. .

In addition, the center of the plurality of second pin grooves (GPG) (e.g., the center of the 2-3 pin groove) and the center (LPM) of the first pin groove (LPG) are parallel or parallel to the second direction (Y-axis direction). It can be located on a line. Accordingly, the phenomenon of the guiding part GP being bent to either the upper or lower side due to the force applied to the push pin during extraction can be suppressed.

Referring further to FIG. 15 , according to the embodiment, the side plate GPa of the guiding part GP includes a first area A1, a second area A2, and a third area A3.

The third area A3 is disposed between the first area A1 and the second area A2. Additionally, the first area A1, the third area A3, and the second area A2 may be sequentially positioned in a direction opposite to the first direction.

The first area A1 may include a first recess RS1. And the second area A2 may include a second recess RS2. The first ball and the second ball may be seated in each of the first recess (RS1) and the second recess (RS2).

Furthermore, a driving yoke may be disposed in the third area A3. A first magnet may be seated on the driving yoke. The driving yoke may be seated in the third area A3 and coupled to the guiding part GP. For example, the drive yoke may be coupled with the side plate (GPa). To this end, a yoke hole A3h or a coupling protrusion A3p may be further disposed in the third area A3. The side plate (GPa) and the drive yoke can be coupled to each other through the yoke hole (A3h) or coupling protrusion (A3p). Additionally, a joint material (eg, epoxy, etc.) may be additionally applied to the third area A3.

Referring to FIGS. 16A to 16C and 17A to 17B, the measuring device 3000 according to the embodiment may include a body 3100, a first protrusion 3200, and a second protrusion 330.

The body 3100 may be extended in one direction. The body 3100 may be extended to have a length longer than the length in the optical axis direction of the lens assembly in the second camera actuator. Furthermore, the body 3100 may include a rail portion 3100r formed on one surface. A ball TB for measurement may be seated on the rail portion 3100r. And the ball TB may be in contact with the first and second lens assemblies (hereinafter described based on the first lens assembly 1222a or lens assembly 1222a) of the second camera actuator for measurement. For example, the ball TB may be located between the first and second lens assemblies and the body 3100.

The rail portion 3100r may include a first rail 3100r1 and a second rail 3100r2. The first rail 3100r1 and the second rail 3100r2 may be spaced apart from each other. Furthermore, the first rail 3100r1 and the second rail 3100r2 may be positioned to correspond to the first and second recesses of the lens assembly 1222a. The gap between the first rail 3100r1 and the second rail 3100r2 may correspond to the gap between the first and second recesses.

Furthermore, the first rail 3100r1 and the second rail 3100r2 may be grooves of various shapes. For example, the first rail 3100r1 and the second rail 3100r2 may be grooves of the same shape. Alternatively, the first rail 3100r1 and the second rail 3100r2 may be grooves of different shapes. For example, both the first rail 3100r1 and the second rail 3100r2 may be 'V' shaped grooves. Alternatively, the first rail 3100r1 may have a 'V' shape and the second rail 3100r2 may have a hemispherical shape. Furthermore, the first rail 3100r1 and the second rail 3100r2 may have a plurality of contact points with the ball TB. Accordingly, the first rail 3100r1 and the second rail 3100r2 may have the same number of contact points with the ball TB. Alternatively, the first rail 3100r1 and the second rail 3100r2 may have different numbers of contact points with the ball TB.

As such, in the body 3100 according to the embodiment, the first rail 3100r1 and the second rail 3100r2 may be formed of grooves with the balls TB and the contact points having the same or different structural shapes.

The first protrusion 3200 may have a structure extending outward from one surface of the body 3100. The first protrusion 3200 may be an area extending in a vertical direction from the body 3100.

The second protrusion 3200 may have a structure extending outward from the other surface of the body 3100. The second protrusion 3200 may be an area extending in a vertical direction from the body 3100.

The first protrusion 3100 and the second protrusion 3200 may extend in opposite directions. Accordingly, the first protrusion 3100 and the second protrusion 3200 may at least partially overlap each other along the extension direction.

The second protrusion 3200 may be located in an area between the rail portions 3100r. For example, the second protrusion 3200 may be located in an area between the first rail 3100r1 and the second rail 3100r2.

Furthermore, the second protrusion 3200 may be located on the same surface of the body 3100 as the surface (other surface) on which the rail portion 3100r is disposed. That is, the second protrusion 3200 can support the lens assembly 1222a, which is the measurement target. As described above, the ball TB may be seated in the first and second recesses of the lens assembly and move along the rail portion 3100r. Accordingly, the guiding portion of the lens assembly can be disposed to face the other surface of the body 3100. At this time, since the second protrusion 3200 and the body 3100 are arranged perpendicular to each other, the bending of the lens assembly can be measured more accurately.

Furthermore, the body 3100 may include at least one hole 3100h. The lens assembly seated on the other surface of the body 3100 may be pressed toward the body 3100 through at least one hole 3100h. That is, when measuring the bending of the lens assembly, the coupling force between the lens assembly and the measuring device can be maintained.

Referring to FIGS. 17C to 17H, in the first lens assembly 1222a according to the embodiment, a lens is disposed in a lens hole, and the lens hole may have a step to accommodate the lens. According to a measuring method according to an embodiment, the steps include placing a first lens assembly on a measuring device, calculating the central axis of the lens hole of the first lens assembly, and calculating the central axis of the lens hole of the first lens assembly, and determining the axis of the first lens assembly based on the calculated central axis of the lens hole. It may include calculating the star tilt angle.

First, the first lens assembly can be placed on the measurement device. As described above, the first lens assembly 1222a can be placed on the second protrusion 3300 to support the end of the guiding part. The measurement target is the lens assembly (first and second lens assemblies). Additionally, the ball placed on the rail portion may be brought into contact with the guiding portion of the first lens assembly 1222a.

And the central axis of the lens hole of the first lens assembly can be calculated. At this time, the central axis of the lens hole can be calculated using a contact or non-contact method. For example, in the case of a non-contact method, the central axis of the lens hole can be calculated through vision recognition. For example, within the lens hole, the center points (PO1, PO2) can be calculated based on the inner surface of the lens hole or the outer diameter of the member (eg, lens) to be accommodated in the lens hole. For example, the center point may correspond to the midpoint of each circular lens or the midpoint of a circular lens hole.

In an embodiment, the centers of two lenses or the midpoint of the inner diameters of two lens holes can be calculated. For example, the first point (PO1) and the second point (PO2) can be calculated.

Referring further to FIG. 17D, the first point PO1 may correspond to the center of the first accommodating lens PL1. And the second point PO2 may correspond to the center of the second receiving lens PL2.

And the central axis (eg, optical axis, axis) of the lens hole can be calculated through the first point (PO1) and the second point (PO2). In FIGS. 17C to 17H, the axes are described as x, y, and z. 17C to 17H, the x-axis corresponds to the opposite direction (or second direction) of the above-described second direction (Y-axis direction), and the y-axis corresponds to the first direction (X-axis direction) (or the opposite direction to the first direction) Corresponds to , and the z-axis may correspond to a direction (or third direction) opposite to the third direction (Z-axis direction).

The first point (PO1) and the second point (PO2) can be calculated by selecting each measurement point of the lens hole through vision recognition. For example, the first point PO1 may be calculated by inputting an edge (eg, point, reference coordinate) from the upper inner surface of the lens hole. The second point PO2 can be calculated by inputting an edge (eg, point, reference coordinate) from the lower inner surface of the lens hole.

Accordingly, the first point (PO1) and the second point (PO2) can be calculated as coordinates (eg, x1, y1, z1, etc.) in three-dimensional space. And the central axis (eg, optical axis, axis) of the lens hole can be calculated using the first point (PO1) and the second point (PO2).

As shown in FIG. 17E, in case (A), the upper surface (LAHus) of the receiving part in the first lens assembly 1222a may be perpendicular to the outer surface (GPs) of the guiding part. In this case, the optical axis of the lens hole of the receiving unit may be parallel to the optical axis direction described above.

In contrast, depending on the asymmetric structure of the first lens assembly 1222a, the lens hole of the first lens assembly 1222a may be distorted to one side. Accordingly, as shown in (B), in the first lens assembly 1222a, the upper surface (LAHus) of the receiving part may be non-perpendicular to the outer surface (GPs) of the guiding part. As shown, in case of (A), θy is 90 degrees, but in case of (B), θy may not be 90 degrees.

The inclination or tilt of the first lens assembly 1222a can be calculated according to the distortion of the first lens assembly 1222a in x, y, and z. And, as will be described later, the axis of the lens (central axis, optical axis) within the lens hole can be arranged parallel to the third direction by adjusting the length of the adjustment member in response to the inclination of the first lens assembly.

That is, the tilt angle for each axis of the first lens assembly can be calculated based on the calculated central axis of the lens hole.

As shown in FIGS. 17F to 17H, by setting the position to '0' for each of the x, y, and z axes, the tilt angle for each axis with respect to the xy, yz, and zx planes can be calculated.

For example, the plane in contact with the ball may be the plane where x=0. And, as described above, an imaginary line connecting the first and second points, which are the centers (midpoints) of two lenses (first and second receiving lenses), may be the optical axis.

The optical axis can satisfy Equation 1 below for x, y, and z.

[Equation 1]

=

Here, a, b, and c are measurable constant values and can be calculated using the first and second points. In an embodiment, a, b, and c may be calculated by applying the value of the second point (PO2).

In other words, through Equation 2, a, b, and c that satisfy this can be derived.

In other words, a straight line equation passing through two points (the first point and the second point) may correspond to the optical axis of the lens hole. An equation for the optical axis can be derived through the first and second points, and the above-mentioned a, b, and c can also be calculated.

[Equation 2]

=

Additionally, in Equations 1 and 2, the first point (PO1) may be (x3,y3,z3), and the second point (PO2) may be (x4,y4,z4).

In addition, after a, b, and c are calculated (after the equation for the optical axis is calculated), Equation 1 can be replaced with x4, y4, and z4 instead of x3, y3, and z3 in Equation 1. Furthermore, other coordinates on the optical axis may be substituted for x3, y3, and z3 in Equation 1.

First, θy can be calculated by projecting the plane where y=0 as shown in FIG. 17g. That is, the y component can be removed and the slope of the straight line (optical axis) can be calculated by projecting it to the xz plane based on y=0. At this time, each angle (θx, θy, θz) means a rotation or tilt angle based on each axis (x, y, z). For example, the angle θx refers to the angle at which the first lens assembly is rotated or tilted with respect to the x-axis. In other words, θz means the tilt angle of the first lens assembly or lens hole with respect to the z-axis. And Θy means the tilt angle relative to the y-axis. And θx means the tilt angle relative to the x-axis.

Next, by substituting y=0 into Equation 1, Equation 3 below is derived, and finally, θy can be calculated through Equation 4 as in Equation 6.

[Equation 3]

=

[Equation 4]

[Equation 5]

Likewise, θz can be calculated by projecting the plane where z=0 as shown in FIG. 17F.

For example, by substituting z=0 into Equation 1, Equation 6 below is derived, and finally, θz can be calculated as Equation 7.

[Equation 6]

=

[Equation 7]

Likewise, θx can be calculated by projecting the plane where x=0 as in Figure 17h.

For example, by substituting x=0 into Equation 1, the following Equation 8 is derived, and finally, θx can be calculated as in Equation 9.

[Equation 8]

=

[Equation 9]

Additionally, the first lens assembly according to the embodiment is y-z symmetrical about the x, y, and z axes, so there may be less distortion relative to the y-z plane. That is, when reflecting the asymmetric structure, the first lens assembly (or lens hole) according to the embodiment may be likely to be tilted in the second direction (Y-axis direction).

Looking further at FIG. 17I, in an embodiment, in the first lens assembly 1222a, the upper surface (LAHus) of the receiving part may be misaligned with the outer surface (GPs) of the guiding part. In the first lens assembly 1222a, the upper surface (LAHus) of the receiving part may form a non-right angle with the outer surface (GPs) of the guiding part.

Furthermore, the upper surface (LAHus) of the receiving part (LAH) and the outer surface (GPs) of the guiding part (GP) adjacent to the ball part are arranged to be offset and may form a first angle (θ _A ).

The upper surface (LAHus) of the receiving unit and the surface perpendicular to the axis (AX1) of the lens group (1221b) disposed in the lens hole may be arranged to be offset from each other. And the upper surface (LAHus) of the receiving unit and the surface perpendicular to the axis (AX1) of the lens group (1221b) disposed in the lens hole may form a second angle (θ _B ).

The first angle (θ _A ) and the second angle (θ _B ) may have corresponding sizes. In an embodiment, the first angle (θ _A ) and the second angle (θ _B ) are similar to each other due to tolerance, etc., and may form an error range of less than 10%.

Furthermore, the axis AX1 of the lens group 1221b may be parallel to the optical axis direction (Z-axis direction). This is because the lens group is tilted in a direction that compensates for the axis of the lens hole by an adjustment member described later. That is, the axis of the lens hole may be misaligned with the axis AX1 of the lens group.

In addition, the upper surface (LAHus) of the receiving portion may include a first end (EP1) located on one side and a second end (EP2) located on the other side in a direction perpendicular to the optical axis direction (e.g., in the second direction (Y-axis direction)). You can.

And the upper surface of the lens group 1221b may include a third end EP3 located on one side and a fourth end EP4 located on the other side in a direction perpendicular to the optical axis direction (e.g., the second direction (Y-axis direction)). You can.

The separation distance gap1 in the optical axis direction (Z-axis direction) of the first end EP1 and the second end EP2 is the separation distance gap2 in the optical axis direction of the third end EP3 and the fourth end EP4. It can be bigger than The third end EP3 and the fourth end EP4 may at least partially overlap each other in the second direction. Accordingly, the separation distance in the optical axis direction between the third end EP3 and the fourth end EP4 may be 0 or very small.

Furthermore, the first end EP1 may be located at a front end compared to the second end EP2. For example, the first end EP1 may be located closer to the first camera actuator than the second end EP2. Additionally, the second end EP2 may be located closer to the image sensor than the first end EP1.

Additionally, the third end EP3 and the fourth end EP4 may have the same distance from the image sensor.

Furthermore, the separation distance gap3 between the upper surface LAHus of the receiving unit and the first end EP1 in the optical axis direction (Z-axis direction) is the distance between the upper surface LAhus of the receiving unit and the second end EP2 in the optical axis direction (Z-axis direction). ) can be larger than the separation distance (gap4)

With further reference to FIGS. 18 to 20 , the first lens assembly 1222a may further include a plurality of adjustment members. In an embodiment, the first lens assembly 1222a may include a first adjustment member (DT1), a second adjustment member (DT2), and a third adjustment member (DT3).

A plurality of adjustment members (DT1 to DT3) may be disposed on the bottom surface (BS1) of the receiving portion (LAH1). And the plurality of adjustment members (DT1 to DT3) may extend from the bottom surface (BS1) of the accommodating portion (LAH1) toward the lens accommodated in the accommodating portion. Alternatively, the plurality of adjustment members DT1 to DT3 may be disposed between the lens group (eg, second lens group) and the bottom surface BS1 in the receiving portion LAH1. In an embodiment, the plurality of adjustment members DT1 to DT3 may be protrusions disposed or formed on the bottom surface BS1 of the receiving portion LAH1. A plurality of adjustment members (DT1 to DT3) may be arranged to be spaced apart from each other.

For example, the first adjustment member DT1 may extend from the bottom surface BS1 of the receiving portion LAH1 toward the second lens group. Alternatively, the first adjustment member DT1 may extend in the optical axis direction.

In an embodiment, the first adjustment member DT1 may be located on the first virtual line VL1 of the first lens assembly 1222a in a first direction (X-axis direction) perpendicular to the optical axis direction (Z-axis direction). You can. That is, the first virtual line VL1 may be a line that bisects the length of the first lens assembly 1222a in the second direction. The first virtual line VL1 may be parallel to the second direction.

In an embodiment, the first adjustment member DT1 may be located at the center of the length of the first lens assembly 1222a in the second direction. The first adjustment member DT1 may be disposed on the first virtual line VL1. Due to this configuration, the first lens assembly 1222a has an asymmetric structure to the left or right with respect to the center, so even if the guiding part is bent to one side when taken out, the optical axis or center of the first lens assembly 1222a is compensated. It can be. That is, the first lens assembly 1222a may have an asymmetric structure with respect to the second virtual line VL2 and a symmetrical structure with respect to the first virtual line VL1. The first lens assembly 1222a may contract on the right side (eg, the guiding part side) of the second virtual line VL2. Therefore, optical performance degradation can be suppressed. In particular, when the first lens assembly 1222a moves along the optical axis by the ball portion, the optical axis may be further distorted due to the asymmetric structure. According to an embodiment, the camera actuator and the first lens assembly may compensate for optical axis distortion due to the curved structure according to the asymmetric structure. The above-mentioned second imaginary line VL2 may be a bisector for the length of the receiving portion LAH1 in the second direction (Y-axis direction).

In an embodiment, the concentricity of the first lens assembly 1222a may be increased by the asymmetric structure described above. Accordingly, the concentricity of the lens can be compensated through the adjustment member to the extent that it is distorted due to the asymmetric structure.

Additionally, the first adjustment member DT1 may be spaced apart from the second adjustment member DT2. Additionally, the first adjustment member (DT1) and the second adjustment member (DT2) may be spaced apart from the third adjustment member (DT3).

The second adjustment member DT2 and the third adjustment member DT3 other than the first adjustment member DT1 may not be disposed on the first virtual line VL1. That is, the second adjustment member DT2 and the third adjustment member DT3 other than the first adjustment member DT1 may be arranged to be offset from the first virtual line VL1.

As a result, the second adjustment member DT2 and the third adjustment member DT3 can compensate for the first lens assembly 1222a being bent in the first and third directions rather than the second direction (Y-axis direction). there is. Furthermore, compensation for bending through the first adjustment member DT1 can be minimized.

In an embodiment, the plurality of adjustment members DT1 to DT3 may have the same or different lengths in the optical axis direction. In particular, the lengths of the first adjustment member DT1 and the second adjustment member (or third adjustment member) in the optical axis direction may be different from each other.

For example, the length HE1 in the optical axis direction of the first adjustment member DT1 may be greater than the length HE2 in the optical axis direction of the second adjustment member DT2.

In particular, the first adjustment member DT1 may be disposed adjacent to the lens protrusion LP. The first adjustment member DT1 may be disposed adjacent to the lens protrusion LP compared to the second or third adjustment member. The second adjustment member DT2 (or third adjustment member) may be disposed adjacent to the guiding part GP compared to the first adjustment member. Alternatively, the first adjustment member DT1 may be located adjacent to one side of the housing. For example, the first adjustment member DT1 may be located adjacent to the second side of the housing. And the guiding part GP may be located adjacent to the first side. Additionally, the first adjustment member DT1 may be located on a side opposite to the side where the ball portion is disposed. Alternatively, the first adjustment member DT1 may be located on a side opposite to the first driving unit.

In an embodiment, among the adjustment members, the first adjustment member DT1 adjacent to the lens protrusion LP relative to the guiding portion GP may be longer in the optical axis direction than other adjustment members. In other words, in the first lens assembly 1222a, the first adjustment member DT1 adjacent to the lens protrusion LP has a relatively small volume and weight (compared to the guiding part), rather than the guiding part GP, which has a large volume and weight. ) may be longer in the direction of the optical axis than other adjustment members. Due to this configuration, even if the receiving part (LAH1) and the lens protrusion (LP) are bent toward the guiding part (GP) according to the guiding part (GP), the second lens group is maintained through the extended structure of the first adjusting member (DT1). can be centered. That is, the center of the lens group according to the curved structure can be compensated.

Referring further to FIG. 21, the accommodating portion LAH1 of the first lens assembly 1222a according to the embodiment includes a first accommodating lens PL1 and a second accommodating lens (PL1) sequentially arranged along the optical axis direction (Z-axis direction). PL2) may be located. In addition, the second lens group 1221b may further include lenses other than the first accommodating lens PL1 and the second accommodating lens PL2.

In an embodiment, the first accommodating lens PL1 may include a first lens outer surface M1 adjacent to the lens protrusion LP and a second lens outer surface M2 adjacent to the guiding part GP.

And the second accommodating lens PL2 may include a third lens outer surface M3 adjacent to the lens protrusion LP and a fourth lens outer surface M4 adjacent to the guiding part GP.

The first lens outer surface M1 and the second lens outer surface M2 may partially overlap in the second direction. Additionally, at least a portion of the first lens outer surface M1 and the second lens outer surface M2 may not overlap in the second direction. In an embodiment, the first lens outer surface M1 may have a region NOV1 that is offset from the second lens outer surface M2 in the second direction.

Additionally, the third lens outer surface M3 and the fourth lens outer surface M4 may partially overlap in the second direction. Additionally, at least a portion of the third lens outer surface M3 and the fourth lens outer surface M4 may not overlap in the second direction. In an embodiment, the third lens outer surface M3 may have a region NOV2 that is offset from the fourth lens outer surface M4 in the second direction.

In addition, the maximum separation distance for each of the first lens outer surface M1 and the second lens outer surface M2 from the center of the accommodating part LAH1 may be different. For example, the maximum separation distance from the center of the accommodation unit (LAH1) to the first lens outer surface (M1) may be different from the maximum separation distance from the center of the accommodation unit (LAH1) to the second lens outer surface (M2). In an embodiment, since the length of the first adjustment member (DT1) is greater than the length of the other adjustment members, the maximum separation distance from the center of the receiving portion (LAH1) to the first lens outer surface (M1) is that of the receiving portion (LAH1). It may be smaller than the maximum separation distance from the center to the outer surface (M2) of the second lens.

Likewise, the maximum separation distance for each of the third lens outer surface M3 and the fourth lens outer surface M4 from the center of the accommodating part LAH1 may be different. For example, the maximum separation distance from the center of the accommodation unit (LAH1) to the third lens outer surface (M3) may be different from the maximum separation distance from the center of the accommodation unit (LAH1) to the fourth lens outer surface (M4). In an embodiment, since the length of the first adjustment member (DT1) is greater than the length of the other adjustment members, the maximum separation distance from the center of the receiving part (LAH1) to the third lens outer surface (M3) is that of the receiving part (LAH1). It may be smaller than the maximum separation distance from the center to the fourth lens outer surface (M4).

Referring to Figures 22 and 23, the description of the first lens assembly and the second lens group described above can be equally applied to the second lens assembly and the third lens group. Hereinafter, as shown in the drawing, the guiding portion of the second lens assembly 1222b will be referred to as GP', the lens protrusion portion of the second lens assembly 1222b will be referred to as LP', and the receiving portion of the second lens assembly 1222b will be referred to as LP'. The unit is referred to as ‘LAH1’. Additionally, the first adjustment member disposed on the bottom of the receiving portion LAH1' of the second lens assembly 1222b is referred to as DT1'.

More specifically, the guiding part GP of the first lens assembly 1222a may be positioned opposite to the guiding part GP' of the second lens assembly 1222b. For example, the guiding part GP of the first lens assembly 1222a may be located adjacent to the first side of the housing. That is, the distance of the guiding part GP of the first lens assembly 1222a from the first side of the housing may be smaller than the distance from the second side of the housing.

In contrast, the guiding part GP' of the second lens assembly 1222b may be located adjacent to the second side of the housing. That is, the distance of the guiding part GP' of the second lens assembly 1222b from the second side of the housing may be smaller than the distance from the first side of the housing.

Additionally, the lens protrusion LP' of the first lens assembly 1222a may be positioned opposite to the lens protrusion LP' of the second lens assembly 1222b. The lens protrusion LP of the first` lens assembly 1222a may be located adjacent to the second side of the housing. Additionally, the lens protrusion LP' of the second lens assembly 1222b may be located adjacent to the first side of the housing.

Additionally, the first adjustment member DT1 of the first lens assembly 1222a and the first adjustment member DT1′ of the second lens assembly 1222b may be arranged to be offset from each other. For example, the first adjustment member DT1 of the first lens assembly 1222a and the first adjustment member DT1' of the second lens assembly 1222b may be arranged to be offset from each other in the optical axis direction (Z-axis direction). Additionally, the first adjustment member DT1 of the first lens assembly 1222a may be disposed adjacent to the second side of the first adjustment member DT1′ of the second lens assembly 1222b.

The first adjustment member DT1 of the first lens assembly 1222a and the first adjustment member DT1′ of the second lens assembly 1222b may extend in opposite directions. The first adjustment member DT1 of the first lens assembly 1222a and the first adjustment member DT1′ of the second lens assembly 1222b may both extend along the optical axis direction. In an embodiment, the first adjustment member DT1 of the first lens assembly 1222a may extend from the bottom of the receiving portion LAH toward the first camera actuator or the 2-1 housing. Alternatively, the first adjustment member DT1' of the second lens assembly 1222b may extend from the bottom of the receiving portion LAH' toward the image sensor or the base. In addition, the separation distance between the bottom surface of the receiving portion of the first lens assembly 1222a and the bottom surface of the receiving portion of the second lens assembly 1222b is the distance between the first adjusting member DT1 of the first lens assembly 1222a and the second lens assembly 1222b. ) may be smaller than the distance between the first adjustment members (DT1'). Conversely, the distance between the first adjustment member DT1 of the first lens assembly 1222a and the first adjustment member DT1' of the second lens assembly 1222b is the distance between the bottom surface of the receiving portion of the first lens assembly 1222a and the second adjustment member DT1' of the first lens assembly 1222a. It may be greater than the separation distance between the bottom surfaces of the receiving portion of the lens assembly 1222b.

For example, the first adjustment member DT1 of the first lens assembly 1222a may be disposed adjacent to the lens protrusion LP of the first lens assembly 1222a. Additionally, the first adjustment member DT1 of the first lens assembly 1222a may be located adjacent to the guiding portion GP' relative to the lens protrusion LP' of the second lens assembly 1222b.

The first adjustment member DT1′ of the second lens assembly 1222b may be disposed adjacent to the lens protrusion LP of the second lens assembly 1222b. Additionally, the first adjustment member DT1' of the second lens assembly 1222b may be located adjacent to the guiding part GP compared to the lens protrusion LP of the first lens assembly 1222a.

Additionally, the first adjustment member DT1 of the first lens assembly 1222a may be located adjacent to one side of the housing. The first adjustment member DT1′ of the second lens assembly 1222b may be located adjacent to the other side of the housing. For example, the first adjustment member DT1 of the first lens assembly 1222a may be located adjacent to the second side of the housing. The first adjustment member DT1′ of the second lens assembly 1222b may be located adjacent to the first side of the housing.

And the guiding part GP of the first lens assembly 1222a may be located adjacent to the first side. The guiding part GP' of the second lens assembly 1222b may be located adjacent to the second side.

Additionally, the first adjustment member DT1 of the first lens assembly 1222a may be located on a side opposite to the side where the cheek portion in contact with or connected to the first lens assembly 1222a is disposed. The first adjustment member DT1' of the second lens assembly 1222b may be located on a side opposite to the side where the cheek portion in contact with or connected to the second lens assembly 1222b is disposed.

For example, the first adjustment member DT1 of the first lens assembly 1222a may be located adjacent to the second ball relative to the first ball. The first adjustment member DT1′ of the second lens assembly 1222b may be located adjacent to the first ball relative to the second ball.

Additionally, the first adjustment member DT1 of the first lens assembly 1222a may be located on a side opposite to the first driving unit. The first adjustment member DT1′ of the second lens assembly 1222b may be located on a side opposite to the second driving unit.

For example, the first adjustment member DT1 of the first lens assembly 1222a may be located adjacent to the first driving unit compared to the second driving unit. The first adjustment member DT1' of the second lens assembly 1222b may be located adjacent to the second driving unit compared to the first driving unit.

In this way, the first adjustment member DT1 of the first lens assembly 1222a and the first adjustment member DT1' of the second lens assembly 1222b are each positioned closer to the lens protrusion than the guiding part in each lens assembly. You can. By this configuration, optical errors occurring as each lens assembly has an asymmetric structure can be compensated for. That is, the camera actuator according to the embodiment can perform optical compensation according to the asymmetric structure.

Figure 24 is a schematic diagram showing a circuit board according to an embodiment.

Referring to FIG. 24 , as described above, the circuit board 1300 according to the embodiment may include a first circuit board portion 1310 and a second circuit board portion 1320. The first circuit board portion 1310 is located below the base and can be coupled to the base. Additionally, an image sensor (IS) may be disposed on the first circuit board portion 1310. Additionally, the first circuit board unit 1310 and the image sensor IS may be electrically connected. That is, the base is located at the rear of the second camera actuator, and the image sensor and circuit board (first circuit board portion) may be located at the rear of the base. The base may include a filter (e.g., infrared, etc.). The circuit board 1300 may include the image sensor and sensor base described above.

Additionally, the second circuit board portion 1320 may be located on the side of the base. In particular, the second circuit board portion 1320 may be located on the first side of the base. Accordingly, the second circuit board portion 1320 is located adjacent to the first coil located adjacent to the first side, so that electrical connection can be easily made. Additionally, the second circuit board portion 1320 may be located on the second side. As such, there may be a plurality of second circuit board units 1320. However, it is not limited to this and may be placed only on either the first side or the second side.

Furthermore, the circuit board 1300 may additionally include a fixing board (not shown) located on the side. Accordingly, even if the circuit board 1300 is made of a flexible material, it can be coupled to the base while maintaining rigidity by using a fixed board.

The second circuit board portion 1320 of the circuit board 1300 may be located on the side of the driver 1250. The circuit board 1300 may be electrically connected to the first driving unit and the driving unit. For example, electrical connections can be made with SMT. However, it is not limited to this method.

This circuit board 1300 may include a circuit board with a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), or a rigid flexible PCB. You can. However, it is not limited to these types.

Additionally, the circuit board 1300 may be electrically connected to another camera module within the terminal or a processor of the terminal. Through this, the above-described camera actuator and the camera module including it can transmit and receive various signals within the terminal.

Figure 25 is a perspective view of a mobile terminal to which a camera module is applied according to an embodiment.

As shown in FIG. 25, the mobile terminal 1500 of the embodiment may include a camera module 1000, a flash module 1530, and an autofocus device 1510 provided at the rear.

The camera module 1000 may include an image capture function and an autofocus function. For example, the camera module 1000 may include an autofocus function using an image.

The camera module 1000 processes image frames of still or moving images obtained by an image sensor in shooting mode or video call mode.

The processed image frame can be displayed on a certain display unit and stored in memory. A camera (not shown) may also be placed 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 OIS along with AF or zoom functions may be implemented by the first camera module 1000A. You can.

The flash module 1530 may include a light emitting element inside that emits light. The flash module 1530 can be operated by operating a camera of a mobile terminal or by user control.

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

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

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 photo diode that converts light energy into electrical energy.

Figure 26 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

For example, Figure 26 is an external view of a vehicle equipped with a vehicle driving assistance device to which the camera module 1000 according to an embodiment is applied.

Referring to FIG. 26, the vehicle 700 of the embodiment may be provided with wheels 13FL and 13FR that rotate by a power source and a predetermined sensor. The sensor may be a camera sensor (2000), but is not limited thereto.

The camera sensor 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 acquire image information through a camera sensor 2000 that captures a front image or a surrounding image, determines the lane identification 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 acquire a front image by photographing the front of the vehicle 700, and a processor (not shown) may acquire image information by analyzing objects included in the front image.

For example, if the image captured by the camera sensor 2000 includes objects such as lanes, adjacent vehicles, obstacles, and indirect road markings such as median strips, curbs, and street trees, the processor detects these objects. This can be included in the video information. At this time, the processor can further supplement the image information by obtaining distance information to the object detected through the camera sensor 2000.

Image information may be information about an object captured in an image. This camera sensor 2000 may include an image sensor and an image processing module.

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

The image processing module can process still images or moving images obtained through an image sensor, extract necessary information, and transmit the extracted information to the processor.

At this time, the camera sensor 2000 may include, but is not limited to, a stereo camera to improve measurement accuracy of the object and secure more information such as the distance between the vehicle 700 and the object.

Although the above description focuses on the examples, this is only an example and does not limit the present invention, and those skilled in the art will be able to You will see that various variations and applications are possible. For example, each component specifically shown in the examples can be modified and implemented. And these variations and differences in application should be construed as being included in the scope of the present invention as defined in the appended claims.

Claims (15)

housing;
a first lens assembly moving in the optical axis direction with respect to the housing;
a cheek portion located in the first lens assembly; and
It includes a driving unit that moves the first lens assembly,
The first lens assembly includes an accommodating portion having a lens hole accommodating a plurality of lenses; And the first lens assembly includes a 'guiding part' in contact with the receiving part and where the ball part is located,
A camera actuator in which the axis of the lens hole is arranged to be offset from the outer surface of the guiding part adjacent to the ball part. According to paragraph 1,
A camera actuator wherein the upper surface of the receiving part is non-perpendicular to the outer surface of the guiding part adjacent to the ball part. According to paragraph 1,
A camera actuator wherein the upper surface of the receiving part and the outer surface of the guiding part adjacent to the ball part form a first angle. According to paragraph 3,
A camera actuator including a lens group disposed in the lens hole of the first lens assembly. According to clause 4,
A camera actuator wherein an upper surface of the receiving portion and a surface perpendicular to the axis of the lens group form a second angle. According to clause 5,
A camera actuator wherein the first angle and the second angle have the same size. According to clause 4,
The axis of the lens group is a camera actuator parallel to the optical axis direction. According to clause 4,
The upper surface of the receiving portion includes a first end located on one side and a second end located on the other side in a direction perpendicular to the optical axis,
A camera actuator wherein the upper surface of the lens group includes a third end located on one side and a fourth end located on the other side in a direction perpendicular to the optical axis. According to clause 8,
A camera actuator wherein a separation distance between the first end and the second end in the optical axis direction is greater than a separation distance between the third end and the fourth end in the optical axis direction. According to clause 8,
The first end is located at the front of the second end,
The third end is a camera actuator that overlaps the fourth end in a direction perpendicular to the optical axis direction. According to paragraph 1,
A camera actuator including a first adjustment member disposed on the bottom of the receiving portion. According to clause 11,
The first adjustment member is a camera actuator disposed on a bisector of the first lens assembly in a first direction perpendicular to the optical axis direction. According to clause 12,
The first lens assembly is a camera actuator including a second adjustment member spaced apart from the first adjustment member. According to clause 13,
A camera actuator wherein the first adjustment member and the second adjustment member have different lengths in the optical axis direction. According to paragraph 1,
The first lens assembly includes a lens protrusion that contacts the receiving portion and corresponds to the guiding portion,
The guiding part is located on one side of the receiving part,
A camera actuator wherein the lens protrusion is located on the other side of the receiving portion.

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