KR20230169727A - Camera actuator and camera module comprising the same - Google Patents

Abstract

Embodiments of the present invention include a housing; A mover including a holder and an optical member disposed on the holder; A driving unit that moves the mover; and a tilting guide portion disposed between the housing and the mover to guide tilting of the mover, wherein the housing includes a housing wall portion disposed on a side corresponding to an exit surface of the optical member, and the optical member Changes the path of light from the first direction to the second direction, and the housing wall portion initiates a camera actuator that at least partially overlaps the holder along the second direction.

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, when performing the anti-shake function within the camera module, a collision absorption structure is required to suppress damage to the mover due to collision. Furthermore, a structure is required to easily control the movement radius of the mover, and demands for preventing foreign substances from entering the interior, suppressing leakage flux, and increasing posture maintenance are also increasing.

The technical problem to be solved by the present invention is to provide a camera actuator and camera device with improved reliability due to shock absorption that occurs during operation for OIS.

Additionally, the present invention can provide a camera actuator and a camera device that easily prevent the inflow of foreign substances.

Additionally, the present invention can provide a camera actuator and camera device that suppress leakage magnetic flux and improve holding power.

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 mover including a holder and an optical member disposed on the holder; A driving unit that moves the mover; and a tilting guide portion disposed between the housing and the mover to guide tilting of the mover, wherein the housing includes a housing wall portion disposed on a side corresponding to an exit surface of the optical member, and the optical member changes the path of light from the first direction to the second direction, and the housing wall portion overlaps the holder at least partially along the second direction.

a first magnetic body disposed in the housing; and a second magnetic body disposed to face the first magnetic body, wherein the tilting guide part may be pressed against the mover by a repulsive force of the first magnetic body and the second magnetic body.

The housing includes a first member disposed on one side, and the mover includes a second member penetrating the first member. The tilting guide may be disposed between the first member and the mover. .

The first member includes a second groove located on an outer surface, the second member includes a first groove facing the second groove, the first magnetic material is disposed in the second groove, and A second magnetic material may be disposed in the first groove.

The second magnetic material, the first magnetic material, and the tilting guide unit may be sequentially arranged along the second direction.

The gap between the first magnetic body and the second magnetic body may be larger than the gap between the holder and the housing wall.

It may further include a plate disposed outside the first member.

The area of the plate is larger than the area of the first member or the area of the second member, and the plate may be a non-magnetic material.

The plate is a magnetic material, and the second magnetic material may have the same polarity as the first magnetic material on the side facing the first magnetic material, and may have a different polarity than the plate on the side facing the plate.

The housing wall portion may not overlap the optical member along the second direction.

The driving unit may include a first magnet, a second magnet facing the first magnet, and a third magnet disposed between the second magnet and the second magnet.

The housing wall portion may overlap at least one of the first magnet and the second magnet along a second direction.

The housing wall portion may not overlap the second member in the second direction.

The housing wall portion may include a housing extension portion extending toward the top of the holder.

A gap between the housing extension and the holder may be smaller than a gap between the first member and the second member.

When contact is made between the housing wall and the holder, the first member and the second member may be spaced apart.

The holder includes a first holder outer surface adjacent to the first magnet and a second holder outer surface adjacent to the second magnet, and the housing wall portion includes the first holder outer surface or the second holder outer surface and the second holder outer surface. Can overlap in 2 directions.

The housing wall portion may not overlap the first magnetic material and the second magnetic material in the second direction.

A camera actuator according to an embodiment includes a housing; A mover including a holder and an optical member disposed on the holder; A driving unit that moves the mover; And a tilting guide part disposed between the housing and the mover to guide the tilting of the mover; and a first member disposed on one side of the housing, wherein the mover penetrates the first member. a second member; and a plate disposed on the first member; further comprising a first magnetic body disposed on the first member; and a second magnetic body disposed on the second member to face the first magnetic body, wherein the tilting guide part is pressed against the mover by a repulsive force of the first magnetic body and the second magnetic body.

The plate is closer to the second magnetic material than the first magnetic material, and may form an attractive force with the second magnetic material.

According to an embodiment of the present invention, a camera actuator and camera device with improved reliability due to shock absorption occurring during driving for OIS are implemented.

Additionally, the present invention can implement a camera actuator and camera device that easily prevents the inflow of foreign substances.

Additionally, the present invention can implement a camera actuator and camera device that suppresses leakage magnetic flux and improves holding power.

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,
Figure 4 is a perspective view of a first camera actuator according to an embodiment;
5 is an exploded perspective view of a first camera actuator according to an embodiment;
6A is a perspective view of a first housing of a first camera actuator according to an embodiment;
Figure 6b is a perspective view in a different direction from Figure 6a,
6C is a front view of the first housing of the first camera actuator according to the embodiment;
6D is a rear view of the first housing of the first camera actuator according to the embodiment;
6E is a top view of a first housing of a first camera actuator according to an embodiment;
Figure 7 is a perspective view of an optical member of a first camera actuator according to an embodiment;
8A is a perspective view of a holder of a first camera actuator according to an embodiment;
8B is a bottom view of the holder of the first camera actuator according to the embodiment;
8C is a front view of the holder of the first camera actuator according to the embodiment;
8D is a rear view of the second member of the first camera actuator according to the embodiment;
8E is a bottom view of the second member of the first camera actuator according to the embodiment;
Figure 9a is a perspective view of the tilting guide portion of the first camera actuator according to the embodiment;
Figure 9b is a perspective view in a different direction from Figure 9a,
Figure 9c is a view viewed from FF' in Figure 9a,
Figure 10 is a diagram showing a first driving unit of a first camera actuator according to an embodiment;
11A is a perspective view of a first camera actuator according to an embodiment;
Figure 11b is a view viewed from PP' in Figure 11a,
Figure 11c is a view viewed from QQ' in Figure 11a,
11D is a rear view of the first camera actuator according to the embodiment;
11E is a top view of a first camera actuator according to an embodiment;
12A is a perspective view of a first camera actuator according to an embodiment;
Figure 12b is a view viewed from SS' in Figure 12a,
FIG. 12C is an example of movement of the first camera actuator shown in FIG. 12B;
Figure 13a is a view viewed from RR' in Figure 12a,
Figure 13b is an example of movement of the first camera actuator shown in Figure 13a;
FIG. 13C is a diagram showing the collision of the housing wall portion with respect to the movement of the first camera actuator shown in FIG. 13A;
14 is a perspective view of a second camera actuator according to an embodiment;
Figure 15 is an exploded perspective view of a second camera actuator according to an embodiment;
Figure 16 is a view viewed from DD' in Figure 14,
17A, 17B and 17C are perspective views of the second housing in the second camera actuator according to the embodiment;
18 and 19 are diagrams explaining each operation of the lens assembly according to an embodiment;
Figure 20 is a diagram explaining the operation of the second camera actuator according to the embodiment;
21 is a schematic diagram showing a circuit board according to an embodiment;
Figure 22 is a perspective view of a first lens assembly, a first bonding member, a second bonding member, and a second lens assembly according to an embodiment;
Figure 23 is a perspective view of a mobile terminal to which a camera module is applied according to an embodiment;
Figure 24 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 generally 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 unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. 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.

Figure 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, and Figure 3 is a view viewed from AA' in Figure 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 on a predetermined barrel (not shown). Fixed focal length lenses may also be referred to as “single focal length lenses” or “single lenses.”

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 may include a first camera actuator 1100 performing an OIS function, and a second camera actuator 1200 performing a zooming function and an AF function.

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 incident into the inside of the first camera actuator 1100 along the optical axis direction (e.g., X-axis direction, based on incident light), and the optical path is changed to the vertical direction (e.g., Z-axis direction) through the optical member. You can. 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.

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 second camera actuator 1200 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. For example, the third lens assembly may perform the function of a focator to image light at a specific location, and the first lens assembly may function to reimage the image formed by the third lens assembly, which is the condenser, at another location. It can perform a variator function. Meanwhile, in the first lens assembly, the distance to the subject or the image distance may change significantly, causing a large change in magnification, and the first lens assembly, which is a variable magnification, may play an important role in changing the focal length or magnification of the optical system. Meanwhile, the point where an image is formed in the first lens assembly, which is a variable sensor, may differ slightly depending on the location. Accordingly, the second lens assembly can perform a position compensation function for the image formed by the inverter. For example, the second lens assembly may perform a compensator function to accurately image an image imaged by the first lens assembly, which is a variable sensor, at the actual image sensor position. For example, the first lens assembly and the second lens assembly may be driven by electromagnetic force caused by interaction between a coil and a magnet. The above description can be applied to the lens assembly described later. Additionally, the first to third lens assemblies may move along the optical axis direction, that is, the third direction. Additionally, the first to third lens assemblies may move in the third direction independently or dependent on each other. In the present invention, the first lens assembly and the second lens assembly can move along the optical axis direction. And the third lens assembly may be located at the front end of the first lens assembly or at the rear end of the second lens assembly. And the third lens assembly may not move in the optical axis direction. That is, the third lens assembly may be a fixing unit. Additionally, the first and second lens assemblies may be moving parts.

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.

FIG. 4 is a perspective view of a first camera actuator according to an embodiment, and FIG. 5 is an exploded perspective view of a first camera actuator according to an embodiment.

Referring to Figures 4 and 5, the first camera actuator 1100 according to the embodiment includes a first housing 1120, a mover 1130, a rotating part 1140, a first driving part 1150, and a first member 1126. ) and a second member 1131a. Furthermore, the first camera actuator 1100 may further include a plate (CP).

The mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131. Additionally, the rotating unit 1140 may include a tilting guide unit 1141, a second magnetic substance 1142, and a first magnetic substance 1143 having the same or different polarities to press the tilting guide unit 1141. For example, the first magnetic material 1143 and the second magnetic material 1142 may have the same polarity on the surfaces facing each other. Additionally, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155.

First, the first camera actuator 1100 may include a shield can (not shown). The shield can (not shown) may be located on the outermost side of the first camera actuator 1100 to surround the rotating part 1140 and the first driving part 1150, which will be described later.

This shield can (not shown) can block or reduce electromagnetic waves generated from the outside. That is, the shield can (not shown) can reduce the occurrence of malfunctions in the rotating unit 1140 or the first driving unit 1150.

The first housing 1120 may be located inside a shield can (not shown). When there is no shield can, the first housing 1120 may be located on the outermost side of the first camera actuator.

Additionally, the first housing 1120 may be located inside the first substrate portion 1154, which will be described later. The first housing 1120 may be fastened to or fitted with a shield can (not shown).

The first housing 1120 may include a first housing side 1121, a second housing side 1122, a third housing side 1123, and a housing wall 1124. A detailed explanation of this will be provided later.

The first member 1126 may be disposed in the first housing 1120. A portion of the first member 1126 may be penetrated by the second member 1131a. First member 1126 may be disposed within the housing. The first member 1126 may be integrated with or separate from the first housing 1120.

Furthermore, the first camera actuator 1100 may further include a plate CP disposed outside the first member 1126. The plate CP can prevent foreign substances from flowing into the second member 1131a or the like penetrating the first member 1126. Furthermore, the plate CP may be made of a magnetic material. Accordingly, since the plate CP is magnetic, magnetic force may not be generated on the first magnetic material 1143 and the second magnetic material 1142 that have polarity for pressurization. That is, the generation of magnetic force that interferes with the driving (pressurization) of the first magnetic material 1143 and the second magnetic material 1142 can be reduced.

If this plate (CP) is a magnetic material, it may be called a magnetic member, magnetic material, cover plate, metal member, metal plate, etc.

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

The holder 1131 may be seated in the receiving portion 1125 of the first housing 1120. The holder 1131 is a first holder outer surface to a fourth holder outer surface corresponding to the first housing side 1121, the second housing side 1122, the third housing side 1123, and the first member 1126, respectively. may include. For example, the first to fourth holder outer surfaces correspond to the inner surfaces of each of the first housing side 1121, the second housing side 1122, the third housing side 1123, and the first member 1126. to do or to face.

Additionally, the holder 1131 may include a second member 1131a disposed in the fourth seating groove. The second member 1131a may penetrate the first member 1126 and be coupled to the holder 1131. The second member 1131a and the holder 1131 may be coupled to each other using various joining members or coupling members. A detailed explanation of this will be provided later.

The optical member 1132 may be seated on the holder 1131. For this purpose, the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove. In an embodiment, the optical member 1132 may be 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 1132 may be composed of a plurality of lenses, prisms, or mirrors. And the optical member 1132 may include a reflection portion disposed therein. However, it is not limited to this.

Additionally, the optical member 1132 may reflect light reflected from the outside (eg, an object) into the camera module. In other words, the optical member 1132 can change the path of reflected light to improve the spatial limitations of the first camera actuator and the second camera actuator. As such, it should be understood that the camera module may provide a high range of magnification by expanding the optical path while minimizing the thickness.

Additionally, the second member 1131a may be coupled to the holder 1131. The second member 1131a may be disposed outside the holder 1131 and inside the housing. In addition, the second member 1131a may be seated in an additional groove located in an area other than the fourth seating groove on the outer surface of the fourth holder 1131. Through this, the second member 1131a can be coupled to the holder 1131, and at least a portion of the first member 1126 can be positioned between the second member 1131a and the holder 1131. For example, at least a portion of the first member 1126 may be disposed in the space formed between the second member 1131a and the holder 1131. And as described above, the second member 1131a can penetrate the hole formed in the first member 1126 (a first through hole and a second through hole to be described later).

Additionally, the second member 1131a may be structured separately from the holder 1131. With this configuration, assembly of the first camera actuator can be easily performed, as will be described later. Alternatively, the second member 1131a may be formed integrally with the holder 1131, but will be described below as a separate structure.

The rotating unit 1140 includes a tilting guide unit 1141, a second magnetic substance 1142, and a first magnetic substance 1143 having the same polarity to press the tilting guide unit 1141.

The tilting guide unit 1141 may be combined with the mover 1130 and the first housing 1120 described above. Specifically, the tilting guide unit 1141 may be disposed between the holder 1131 and the first member 1126. Accordingly, the tilting guide unit 1141 may be combined with the mover 1130 of the holder 1131 and the first housing 1120. However, unlike the above-described content, in this embodiment, the tilting guide unit 1141 may be disposed between the first member 1126 and the holder 1131. Specifically, the tilting guide unit 1141 may be located between the first member 1126 and the fourth seating groove of the holder 1131. For example, at least a portion of the tilting guide unit 1141 may be located in the fourth seating groove.

In the third direction (Z-axis direction), the second member 1131a, the first member 1126, the tilting guide unit 1141, and the holder 1131 may be arranged in that order. Additionally, the second magnetic material 1142 and the first magnetic material 1143 may be seated in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126, respectively. there is. In this embodiment, the first groove (gr1) and the second groove (gr2) may have different positions from the first and second grooves described in other embodiments described above. However, the first groove (gr1) is located in the second member (1131a) and moves integrally with the holder and the second member (1131a), and the second groove (gr2) corresponds to the first groove (gr1) It is located on the member 1126 and coupled to the first housing 1120. Accordingly, these terms will be used interchangeably for explanation. Furthermore, the first groove and the second groove may be grooves as described above. Alternatively, the first groove and the second groove may be replaced in the form of holes.

Additionally, the tilting guide unit 1141 may be disposed adjacent to the optical axis. As a result, the actuator according to the embodiment can easily change the optical path according to the first and second axis tilt, which will be described later.

The tilting guide unit 1141 may include a first protrusion spaced apart in the first direction (X-axis direction) and a second protrusion spaced apart in the second direction (Y-axis direction). Additionally, the first protrusion and the second protrusion may protrude in opposite directions. A detailed explanation of this will be provided later.

Additionally, as described above, the second magnetic material 1142 may be located within the second member 1131a. Additionally, the first magnetic material 1143 may be located within the first member 1126.

The second magnetic material 1142 and the first magnetic material 1143 may have the same polarity. For example, the second magnetic material 1142 may be a magnet having an N pole, and the first magnetic material 1143 may be a magnet having an N pole. Or, conversely, the second magnetic material 1142 may be a magnet having an S pole, and the first magnetic material 1143 may be a magnet having an S pole. For example, as described above, the first pole surface of the first magnetic material 1143 and the second pole surface of the second magnetic material 1142 facing the first pole surface may have the same polarity.

The second magnetic material 1142 and the first magnetic material 1143 may generate a repulsive force between them due to the above-described polarity. By this configuration, the above-mentioned repulsive force is applied to the second member 1131a or holder 1131 coupled to the second magnetic material 1142 and the first member 1126 or first housing coupled to the first magnetic material 1143 ( 1120). At this time, the repulsive force applied to the second member 1131a may be transmitted to the holder 1131 coupled to the second member 1131a. As a result, the tilting guide portion 1141 disposed between the second member 1131a and the first member 1126 can be pressed by the repulsive force. Furthermore, the repulsive force can also be transmitted to the housing and mover. Accordingly, the housing and the mover may be pressed against each other by repulsive force. In other words, the repulsive force may correspond to the holding force that maintains the position between the housing and the mover. That is, the repulsive force can maintain the tilting guide unit 1141 positioned between the holder 1131 and the first housing 1120 (or the first member 1126). With this configuration, the position between the mover 1130 and the first housing 1120 can be maintained even when the X-axis is tilted or the Y-axis is tilted. Additionally, the tilting guide portion may be in close contact with the first member 1126 and the holder 1131 by the repulsive force between the first magnetic material 1143 and the second magnetic material 1142. In other words, the repulsive force generated by the first magnetic material 1143 or the second magnetic material 1142 may be a holding force for the position between the holder 1131 and the first housing 1120.

The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155. Details on this will be described later. Additionally, the yoke portion 1155 may be referred to as the ‘first yoke portion’ in the first camera actuator. And the yoke part in the second camera actuator can be called the ‘second yoke part’.

FIG. 6A is a perspective view of the first housing of the first camera actuator according to the embodiment, FIG. 6B is a perspective view in a different direction from FIG. 6A, and FIG. 6C is a front view of the first housing of the first camera actuator according to the embodiment; FIG. 6D is a rear view of the first housing of the first camera actuator according to the embodiment, and FIG. 6E is a top view of the first housing of the first camera actuator according to the embodiment.

Referring to FIGS. 6A to 6E, the first housing 1120 according to the embodiment may include a first housing side portion 1121 to a third housing side portion 1123. Additionally, the first member 1126 may be integrated with the first housing 1120. Accordingly, the first member 1126 may be included in the first housing 1120. Alternatively, the first housing 1120 may include a first member 1126.

The first housing side 1121 and the second housing side 1122 may be arranged to face each other. Additionally, the first member 1216a and the housing wall portion 1124 may be arranged to face each other. Furthermore, the housing wall portion 1124 can be equally applied to the structure of a camera actuator in which the first member and the second member are not present. That is, even in a structure in which the mover is tilted within the housing, the fixed housing may include a housing wall portion.

And the third housing side 1123 may be disposed between the first housing side 1121 and the second housing side 1122.

The third housing side 1123 may contact the first housing side 1121 and the second housing side 1122. And the third housing side 1123 may be the bottom of the first housing 1120. Additionally, the above-mentioned information can be equally applied to the description of direction.

And the first housing side 1121 may include a first housing hole 1121a. A first coil, which will be described later, may be located in the first housing hole 1121a.

Additionally, the second housing side 1122 may include a second housing hole 1122a. And a second coil 1152b, which will be described later, may be located in the second housing hole 1122a.

Additionally, the first housing side 1121 and the second housing side 1122 may be sides of the first housing 1120.

The first coil and the second coil may be coupled to the first substrate portion. In an embodiment, the first coil and the second coil may be electrically connected to the first substrate portion so that current may flow. This current is an element of the electromagnetic force that allows the second camera actuator to tilt about the X-axis.

Additionally, the third housing side 1123 may include a third housing hole 1123a.

A third coil, which will be described later, may be located in the third housing hole 1123a. Additionally, the third coil 1152c may be electrically connected to the first substrate portion in contact with the first housing 1120 and coupled to each other. Accordingly, the third coil can be electrically connected to the first substrate and receive current from the first substrate. This current is an element of the electromagnetic force that allows the second camera actuator to tilt about the Y axis.

A first member 1126 may be seated between the first housing side 1121 and the third housing side 1123. Accordingly, the first member 1126 may be located on the third housing side 1123. For example, the first member 1126 may be located on one side. Based on the third direction, the first member 1126 and the holder may be positioned sequentially.

Additionally, the first housing 1120 may include a receiving portion 1125 formed by the first housing side 1121 to the third housing side 1123. A first member 1126, a second member 1131a, and a mover 1130 may be located in the receiving portion 1125 as components. A mover, a tilting guide unit, etc. may be located in the receiving unit 1125.

Additionally, the first housing 1120 may further include a housing wall portion 1124 facing the first member 1126. And the housing wall 1124 is disposed between the first housing side 1121 and the second housing side 1122, and the first housing side 1121, the second housing side 1122, and the third housing side 1123. You can come into contact with

Additionally, the housing wall 1124 may be located at the ends of the first housing side 1121 and the second housing side 1122. That is, there may be a plurality of housing wall portions 1124. And a plurality of housing walls 1124 may be located on each of the first housing side 1121 and the second housing side 1122. The plurality of housing wall portions 1124 may be spaced apart in the second direction (Y-axis direction). Accordingly, the light reflected from the optical member 1132 can move to the second camera actuator at the rear end through the spaced area. In other words, the spaced apart areas provide a path for light to travel.

Additionally, the housing wall portion 1124 may include protrusions or grooves to provide easy coupling with another adjacent camera actuator (second camera actuator). With this configuration, it is possible to minimize changes in the optical path by providing an optical path and improving the bonding force between the housing wall 1124, which has an opening providing the optical path, and other components, thereby suppressing movement of the aperture due to separation, etc. there is.

More specifically, the housing wall portion 1124 may be disposed on a side corresponding to the exit surface of the optical member. In addition, the housing wall 1124 is located between the first housing side 1121 and the second housing side 1122, and is located at the ends of the first housing side 1121 and the second housing side 1122 in the optical axis direction. You can. Accordingly, the housing wall portion 1124 may be located at the rear end of the receiving portion 1125 along the optical axis direction. Furthermore, the housing wall portion 1124 may be located at the rear end of the optical member in the optical axis direction (Z-axis direction).

And the housing wall portion 1124 may overlap the holder in the optical axis direction (Z-axis direction). Additionally, the housing wall portion 1124 may overlap at least partially with the holder in the optical axis direction. Here, the optical axis direction (Z-axis direction) may correspond to the movement direction of the reflected light. Additionally, the optical axis direction may correspond to the vertical direction of the emission surface of the optical member. Accordingly, for the purpose of preventing hand shake, the amount of movement may be limited by the housing wall portion 1124 even if the mover, that is, the holder, is tilted. Furthermore, the housing wall portion 1124 and the holder may collide with each other and no impact may occur in the first member or the second member. Thereby, the reliability of the first member and the second member can be improved.

And the housing wall portion 1124 may be formed integrally with the housing 1120. Additionally, the housing wall portion 1124 may be partially made of an elastic material. Additionally, an elastic member may be additionally disposed on the housing wall portion 1124. Accordingly, the impact applied to the holder 1131 due to collision between the housing wall 1124 and the holder 1131 can be reduced.

In addition, the housing wall portion 1124 according to the embodiment includes a wall portion 1124a facing (or corresponding to) the rear surface of the holder (or the exit surface of the optical member) and a housing extension extending from the wall portion 1124a to the top of the holder. It may include part 1124b.

The wall portion 1124a may overlap the holder in the optical axis direction (Z-axis direction). And the housing extension portion 1124b may overlap the holder in the first direction.

The wall portion 1124a may serve as a stopper against tilt of the holder in the first or second direction. That is, when the holder is tilted, the holder and the wall portion 1124a may collide with or contact each other.

Additionally, when the holder moves in the first direction or tilts the second axis (e.g., moves up and down), the housing extension portion 1124b may collide with or contact the holder. That is, the housing extension portion 1124b may serve as a stopper for movement of the holder in the first direction. Furthermore, the third housing side portion 1130 may also perform a stopper function.

Additionally, as described above, the first member 1126 may be combined with the first housing 1120 and included in the first housing 1120. For example, the first member 1126 may be integrated with or separate from the first housing 1120. Hereinafter, the first member 1126 will be described as a structure separated from the first housing 1120.

And the first member 1126 may be disposed in the first housing 1120. Alternatively, the first member 1126 may be located within the first housing 1120.

And the first member 1126 may be coupled to the first housing 1120. In an embodiment, the first member 1126 may be located between the first housing side 1121 and the second housing side 1122. And the first member 1126 is located on the third housing side 1123 and can be joined to the first to third housing sides.

Additionally, a first stop member 1121b may be located on the inner surface of the first housing side 1121. Additionally, a second stop member 1122b may be located on the inner surface of the second housing side 1122.

The first stop member 1121b and the second stop member 1122b may be positioned symmetrically with respect to the first direction (X-axis direction). The first stop member 1121b and the second stop member 1122b may extend in the first direction (X-axis direction). With this configuration, even if the first member 1126 moves into the first housing 1120, its position can be maintained by the first stop member 1121b and the second stop member 1122b. In other words, the first stop member 1121b and the second stop member 1122b can maintain the first member 1126 positioned on one side of the first housing 1120.

Furthermore, the first stop member 1121b and the second stop member 1122b fix the position of the first member 1126 and fix the position of the tilting guide between the first member 1126 and the mover to prevent errors such as vibration. Causes of occurrence can be eliminated. As a result, the first camera actuator according to the embodiment can accurately perform X-axis tilt and Y-axis tilt.

In addition, the separation distance L2 in the second direction (Y-axis direction) between the first stop member 1121b and the second stop member 1122b is maximum in the second direction (Y-axis direction) of the first member 1126. It may be smaller than the length (L1). Accordingly, the first member 1126 may be assembled or inserted laterally into the first housing 1120 and coupled to the first housing 1120. Furthermore, the holder may be assembled to the first housing 1120 along a first direction. And as described above, the first member 1126 may be coupled to the first housing 1120 along the side, that is, the optical axis direction. And the second member may be assembled or inserted along the tube axis direction. As a result, the second member can penetrate the first member 1126. Afterwards, a plate may be further placed on the first member 1126.

Additionally, the first member 1126 includes a second protrusion groove PH2 in which the second protrusion of the tilting guide part rests. The second protruding groove PH2 may be located on the inner surface 1126s1 of the first member 1126. As will be described later, the second protruding groove PH2 may be identically applied to the first protruding groove. For example, the second protrusion groove PH2 may be plural and may have a structure having the same or different contact points as the second protrusion of the tilting guide unit. For example, there are two second protruding grooves PH2 and may have a 4-point or 8-point contact structure. That is, the second protruding groove PH2 may be formed of a plurality of inclined surfaces. Additionally, the second protruding groove PH2 may be a hemispherical groove.

And the first member 1126 has a protrusion (e.g., a second protrusion) of the tilting guide arranged adjacent to the optical member (prism) within the fourth seating groove, so that the protrusion, which is the reference axis of the tilt, is the center of gravity of the mover 1130. be placed close to. Accordingly, when the holder is tilted, the moment that moves the mover 1130 for tilt can be minimized. Accordingly, current consumption for driving the coil is minimized, so power consumption of the camera actuator can be reduced.

Additionally, the first member 1126 may include through holes 1126a and 1126b. The through hole may be comprised of a plurality of first through holes 1126a and second through holes 1126b.

The first and second extension parts of the second member, which will be described later, may pass through the first through hole 1126a and the second through hole 1126b, respectively. Through this, a holding force may be generated between the second member and the first member due to the repulsive force between the first and second magnetic materials. In other words, even when the mover tilts, the first housing and the mover can maintain their respective positions.

A second protruding groove PH2 may be located between the first through hole 1126a and the second through hole 1126b. With this configuration, the coupling force between the tilting guide unit 1141 and the first member 1126 can be improved, thereby preventing a decrease in tilt accuracy caused by the tilting guide unit 1141 moving within the first housing.

Additionally, a second groove gr2 may be located on the outer surface 1126s2 of the first member 1126. The first magnetic material may be seated in the second groove gr2. And the outer surface 1126s2 of the first member 1126 may oppose or face the inner surface of the second member or the member base portion. Furthermore, the second magnetic material seated on the second member and the first magnetic material of the first member 1126 may face each other and generate the above-described repulsive force. Accordingly, since the first member 1126 presses the tilting guide part inward or the holder by a repulsive force, the mover can be spaced a predetermined distance from the side of the third housing within the first housing even if there is no current injection into the coil. In other words, a holding force that maintains the position between the mover, the housing, and the tilting guide may be generated by the first magnetic material and the second magnetic material.

Additionally, when the first member 1126 is integrated with the first housing 1120, the coupling force between the first member 1126 and the first housing 1120 is improved, and the reliability of the camera actuator can be improved. Additionally, when they are separated, the ease of assembly and manufacturing of the first member 1126 and the first housing 1120 can be improved.

And in an embodiment, the first member 1126 may include a first through hole 1126a and a second through hole 1126b as described above. Additionally, the first through hole 1126a and the second through hole 1126b may be arranged side by side in the second direction (Y-axis direction) and overlap each other.

And the first member 1126 is an upper member (UA) located above the first through hole 1126a and the second through hole 1126b, and below the first through hole 1126a and the second through hole 1126b. It may include a lower member (BA) located at. Accordingly, the first through hole 1126a and the second through hole 1126b may be located in the middle of the first member 1126. That is, the first member 1126 may include a connecting member (MA) located on the side of the first through hole 1126a and the second through hole 1126b. That is, the upper member (UA) and the lower member (BA) may be connected to each other through the connecting member (MA). Additionally, the lower members BA may be plural in number to form the first and second through holes, and may be arranged to be spaced apart from each other in the second direction (Y-axis direction).

Accordingly, the first member 1126 may have improved rigidity by having an upper member UA. For example, the rigidity of the first member 1126 may increase compared to the case where the upper member UA is not present. For example, in this embodiment, the unit of rigidity may be N/㎛. Accordingly, the reliability of the first camera actuator according to the embodiment may be improved.

Additionally, a first coupling groove 1126k may be located on the outer surface 1126s2 of the first member 1126. The first coupling groove 1126k may be located at the edge of the outer surface 1126s2 of the first member 1126. In particular, the first coupling groove 1126k may be located at the ends (eg, left and right sides) of the outer surface 1126s2 of the first member 1126 and adjacent to the first housing side portion 1121.

The first coupling groove 1126k may be positioned to correspond to the second coupling grooves 1121m and 1122m of the first housing side 1121 and the second housing side 1122. In an embodiment, the first coupling groove 1126k may be positioned to correspond to (or face) the second coupling grooves 1121m and 1122m of the first housing side 1121 and the second housing side 1122. The second coupling grooves 1121m and 1122m may be located on a side adjacent to and forming the same surface as the outer surface 1126s2 of the above-described first member 1126.

In an embodiment, there may be a plurality of first coupling grooves (1126k) and second coupling grooves (1121m, 1122m), and the plurality of first coupling grooves (1126k) and second coupling grooves (1121m, 1122m) are aligned in the first direction. Alternatively, it may be positioned symmetrically in the second direction.

And a coupling member may be applied to the first coupling groove (1126k) and the second coupling groove (1121m, 1122m). That is, the joining member can be applied between the first housing side (or second housing side) and the first member 1126 to improve the bonding force between the first housing 1120 and the first member 1126. These joining members may include epoxy, etc., but are not limited to these materials.

Additionally, the first member 1126 may further include a first protrusion 1126c and a second protrusion 1126d. The first protrusion 1126c may contact the first housing side 1121, and the second protrusion 1126d may contact the second housing side 1122. The first protrusion 1126c may extend in a third direction (Z-axis direction) from one end of the outer surface 1126s2 of the first member. The second protrusion 1126d may extend in the third direction (Z-axis direction) from the other end of the outer surface 1126s2 of the first member. That is, the first protrusion and the second protrusion may extend toward the holder.

The first protrusion may be maintained in position by the first stop member 1121b, and the second protrusion may be maintained in position by the second stop member 1122b. Accordingly, the reliability of the camera actuator according to the embodiment may be improved.

Additionally, as described above, the housing wall portion 1124 according to the embodiment may include a wall portion 1124a and a housing extension portion 1124b.

The housing wall portion 1124 or the wall portion 1124a may overlap the first through hole 1126a and the second through hole 1126b of the first member 1126 in the optical axis direction (Z-axis direction). For example, the housing wall portion 1124 or the wall portion 1124a may partially overlap the first through hole 1126a and the second through hole 1126b of the first member 1126 in the optical axis direction (Z-axis direction).

And a second protruding groove PH2 may be located between adjacent wall portions 1124a. Additionally, the housing wall portion 1124 or the wall portion 1124a may not overlap the second protruding groove PH2 along the optical axis direction (Z-axis direction).

By this configuration, the effective area for light reflected and emitted through the optical member located between the adjacent wall portions 1124a can be increased.

Furthermore, the distance (separation distance in the second direction) between adjacent housing extensions 1124b may become smaller along the optical axis direction. By this configuration, the amount of light incident on the optical member can be increased. Furthermore, the housing extension portion 1124b can sufficiently function as a stopper when the holder is tilted.

Additionally, a third housing hole 1123a may be located between adjacent housing extensions 1124b. That is, the third housing hole 1123a and the housing extension 1124b do not overlap in the first direction (X-axis direction) and may be misaligned.

Figure 7 is a perspective view of an optical member of a first camera actuator according to an embodiment.

The optical member 1132 may be seated on the holder. This optical member 1132 may be a right-angled prism as a reflector, but is not limited thereto.

In an embodiment, the optical member 1132 may have a protrusion (not shown) on a portion of the outer surface. The optical member 1132 can be easily coupled to the holder through a protrusion (not shown). Additionally, the holder may be coupled to the optical member 1132 by having grooves or protrusions.

Additionally, the bottom surface 1132b of the optical member 1132 may be seated on the seating surface of the holder. Accordingly, the bottom surface 1132b of the optical member 1132 may correspond to the seating surface of the holder. Furthermore, the bottom surface 1132b of the optical member 1132 may be a reflective surface. And the top surface of the optical member 1132 may be an incident surface where light is incident. Additionally, the back of the optical member 1132 may be an emission surface through which light is emitted.

Additionally, in an embodiment, the bottom surface 1132b may be formed as an inclined surface in the same way as the seat of the holder. Accordingly, the prism moves as the holder moves and simultaneously prevents the optical member 1132 from being separated from the holder.

Additionally, a groove is formed on the bottom surface 1132b of the optical member 1132 and a bonding member is applied, so that the optical member 1132 can be coupled to the holder. Alternatively, the holder may be coupled to the optical member 1132 by applying a bonding member to the groove or protrusion of the holder.

Additionally, the protrusion of the holder may face the housing wall portion described later. Furthermore, the protrusion of the holder may overlap the optical member 1132 in the optical axis direction. Therefore, in this embodiment, the protrusion of the holder may not overlap the housing wall in the optical axis direction.

Additionally, as described above, the optical member 1132 may have a structure capable of reflecting light reflected from the outside (eg, an object) into the camera module. As an example, the optical member 1132 may be made of a single mirror. Additionally, the optical member 1132 can change the path of reflected light to improve the spatial limitations of the first camera actuator and the second camera actuator. As such, it should be understood that the camera module may provide a high range of magnification by expanding the optical path while minimizing the thickness. Additionally, it should be understood that a camera module including a camera actuator according to an embodiment may provide a high range of magnification by expanding the optical path while minimizing the thickness.

FIG. 8A is a perspective view of the holder of the first camera actuator according to the embodiment, FIG. 8B is a bottom view of the holder of the first camera actuator according to the embodiment, and FIG. 8C is a front view of the holder of the first camera actuator according to the embodiment. , FIG. 8D is a rear view of the second member of the first camera actuator according to the embodiment, and FIG. 8E is a bottom view of the second member of the first camera actuator according to the embodiment.

Referring to FIGS. 8A to 8E, the holder 1131 may include a seating surface 1131o on which the optical member 1132 rests. The seating surface 1131o may be an inclined surface. Additionally, the holder 1131 may include a chin portion on the upper portion of the seating surface 113o. And the jaw portion of the holder 1131 may be coupled to the protrusion (not shown) of the optical member 1132.

The holder 1131 may include a plurality of outer surfaces. For example, the holder 1131 may include a first holder outer surface 1131S1, a second holder outer surface 1131S2, a third holder outer surface 1131S3, and a fourth holder outer surface 1131S4.

The first holder outer surface 1131S1 may be positioned to face the second holder outer surface 1131S2. That is, the first holder outer surface 1131S1 may be symmetrically disposed with respect to the second holder outer surface 1131S2 and the first direction (X-axis direction).

The first holder outer surface 1131S1 may be positioned to correspond to the first housing side. That is, the first holder outer surface 1131S1 may be positioned to face the first housing side. And the second holder outer surface 1131S2 may be positioned to correspond to the second housing side. That is, the second holder outer surface 1131S2 may be positioned to face the second housing side.

Additionally, the first holder outer surface 1131S1 may include a first seating groove 1131S1a. And the second holder outer surface 1131S2 may include a second seating groove 1131S2a. The first seating groove 1131S1a and the second seating groove 1131S2a may be arranged symmetrically with respect to the first direction (X-axis direction).

Additionally, the first seating groove (1131S1a) and the second seating groove (1131S2a) may be arranged to overlap in the second direction (Y-axis direction). Additionally, a first magnet 1151a may be placed in the first seating groove 1131S1a, and a second magnet 1151b may be placed in the second seating groove 1131S2a. The first magnet 1151a and the second magnet 1151b may also be arranged symmetrically with respect to the first direction (X-axis direction). In this specification, it should be understood that the first to third magnets may be coupled to the housing through a yoke or joining member. The polarity of the first magnet and the polarity of the second magnet may be positioned opposite to each other. For example, the N and S poles of the first magnet may be sequentially arranged in the third direction, and the S and N poles of the second magnet may be sequentially arranged in the third direction. As a modified example, the polarity of the first magnet and the polarity of the second magnet may be positioned to be the same by controlling the current injection or current direction of the first and second coils.

As described above, due to the positions of the first and second seating grooves and the first and second magnets, the electromagnetic force induced by each magnet is parallel to the first holder outer surface (S1231S1) and the second holder outer surface (1131S2). It can be provided on the table. For example, the area applied on the first holder outer surface (S1231S1) (e.g., the part where the electromagnetic force is strongest) and the area applied on the second holder outer surface (S1231S1) (e.g., the part where the electromagnetic force is strongest) are It may be located on an axis parallel to the second direction (Y-axis direction). As a result, X-axis tilting can be performed accurately.

A first magnet may be placed in the first seating groove (1131S1a), and a second magnet may be placed in the second seating groove (1131S2a).

The third holder outer surface 1131S3 is in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2, and is formed on one side of the first holder outer surface 1131S1 and the second holder outer surface 1131S2. It may be an outer surface extending in two directions (Y-axis direction). Additionally, the third holder outer surface 1131S3 may be located between the first holder outer surface 1131S1 and the second holder outer surface 1131S2. The third holder outer surface 1131S3 may be the bottom of the holder 1131. That is, the third holder outer surface 1131S3 may be positioned to face the third housing side.

Additionally, the third holder outer surface 1131S3 may include a third seating groove 1131S3a. A third magnet may be placed in the third seating groove 1131S3a. The third holder outer surface 1131S3 may be positioned to face the third housing side 1123.

Additionally, the third housing hole 1123a may at least partially overlap the third seating groove 1131S3a in the first direction (X-axis direction). Accordingly, the third magnet in the third seating groove 1131S3a and the third coil in the third housing hole 1123a may be positioned to face each other. And the third magnet and third coil generate electromagnetic force so that the second camera actuator can tilt the Y axis.

Additionally, while the X-axis tilt is achieved by a plurality of magnets (first and second magnets), the Y-axis tilt can be achieved only by the third magnet.

In an embodiment, the third seating groove (1131S3a) may be larger than the first seating groove (1131S1a) or the second seating groove (1131S2a). With this configuration, Y-axis tilt can be performed with current control similar to X-axis tilt.

The fourth holder outer surface 1131S4 is in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2, and moves in a first direction in the first holder outer surface 1131S1 and the second holder outer surface 1131S2. It may be an outer surface extending in the (X-axis direction). Additionally, the fourth holder outer surface 1131S4 may be located between the first holder outer surface 1131S1 and the second holder outer surface 1131S2. That is, the fourth holder outer surface 1131S4 may be positioned to face the first member.

The fourth holder outer surface 1131S4 may include a fourth seating groove 1131S4a. A tilting guide unit 1141 may be located in the fourth seating groove 1131S4a. Additionally, a second member 1131a and a first member 1126 may be located in the fourth seating groove 1131S4a. And the fourth seating groove 1131S4a may include a plurality of areas. It may include a first area (AR1), a second area (AR2), and a third area (AR3).

A second member 1131a may be located in the first area AR1. That is, the first area AR1 may overlap the second member 1131a in the first direction (X-axis direction). In particular, the first area AR1 may be an area where the member base of the second member 1131a is located. At this time, the first area AR1 may be located on the fourth holder outer surface 1131S4. That is, the first area AR1 may correspond to an area located above the fourth seating groove 1131S4a. In this case, the first area AR1 may not be an area within the fourth seating groove 1131S4a.

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

Additionally, the second area AR2 may be located on the fourth holder outer surface 1131S4 like the first area. That is, the second area AR2 may correspond to the area located above the fourth seating groove 1131S4a.

A tilting guide unit may be located in the third area AR3. In particular, the base of the tilting guide unit may be located in the third area AR3. That is, the third area AR3 may overlap the tilting guide unit (eg, base) in the first direction (X-axis direction).

Additionally, the second area AR2 may be located between the first area AR1 and the third area AR3.

Additionally, a second member is disposed in the first area AR1, and the second member 1131a may include a first groove gr1. In an embodiment, the second member 1131a may include a first groove gr1 formed on the inner surface 1131aas. And a second magnetic material may be disposed in the first groove gr1 as described above.

And as described above, the first member may be disposed in the second area AR2. The first groove (gr1) may be positioned to face the second groove (gr2). For example, the first groove gr1 may at least partially overlap the second groove gr2 in the third direction (Z-axis direction).

And the repulsive force generated by the second magnetic material may be transmitted to the fourth seating groove 1131S4a of the holder 1131 through the second member. Accordingly, the holder can apply force to the tilting guide unit in the same direction as the repulsive force generated by the second magnetic material.

The first member may include a second groove (gr2) facing the first groove (gr1) formed on the outer surface. Additionally, the first member may include a second protruding groove formed on the inner surface as described above. And the second protrusion may be seated in the second protrusion groove.

Additionally, like the second magnetic material, a repulsive force generated by the first magnetic material and the second magnetic material may be applied to the first member. Accordingly, the first member and the second member may press the tilting guide portion disposed between the first member and the holder 1131 through repulsive force.

A tilting guide unit 1141 may be disposed in the third area AR3.

And the first protruding groove (PH1) may be located in the fourth seating groove (1131S4a). Additionally, the first protrusion of the tilting guide unit 1141 may be accommodated in the first protrusion groove PH1. Accordingly, the first protrusion PR1 may contact the first protrusion groove. The maximum diameter of the first protrusion groove PH1 may correspond to the maximum diameter of the first protrusion PR1. This can be equally applied to the second protrusion groove and the second protrusion PR2. That is, the maximum diameter of the second protrusion groove may correspond to the maximum diameter of the second protrusion PR2. Accordingly, the second protrusion may contact the second protrusion groove. With this configuration, first axis tilt with respect to the first protrusion and second axis tilt with respect to the second protrusion can easily occur, and the radius of tilt can be improved.

Additionally, in an embodiment, there may be a plurality of first protruding grooves PH1. For example, one of the first protrusion groove (PH1) and the second protrusion groove (PH2) may include a 1-1 protrusion groove (PH1a) and a 1-2 protrusion groove (PH1b). Hereinafter, the first protruding groove (PH1) will be described as including a 1-1 protruding groove (PH1a) and a 1-2 protruding groove (PH1b). And the following description can be equally applied to the second protruding groove PH2. For example, the second protrusion groove PH2 includes a 2-1 protrusion groove and a 2-2 protrusion groove, and the description of the 1-1 protrusion groove applies to the 2-1 protrusion groove, and the 2-2 protrusion groove The description of the 1-2 protruding grooves may be applied to the protruding groove.

The 1-1st protruding groove PH1a and the 1-2 protruding groove PH1b may be arranged side by side in the first direction (X-axis direction). The maximum areas of the 1-1st protruding groove (PH1a) and the 1-2 protruding groove (PH1b) may be different from or the same as each other.

The plurality of first protruding grooves PH1 may have different numbers of inclined surfaces. For example, the first protruding groove PH1 may include a groove bottom and an inclined surface. At this time, the plurality of protruding grooves may have different numbers of inclined surfaces. Additionally, the area of the bottom of the protrusion groove may also be different.

For example, the 1-1 protruding groove PH1a may include a first groove bottom surface LS1 and a first inclined surface CS1. The 1-2 protruding groove PH1b may include a second groove bottom surface LS2 and a second inclined surface CS2.

At this time, the first groove bottom LS1 and the second groove bottom LS2 may have different areas. The area of the first groove bottom (LS1) may be smaller than the area of the second groove bottom (LS2).

Additionally, the number of first inclined surfaces CS1 in contact with the first groove bottom LS1 may be different from the number of second inclined surfaces CS2. For example, the number of first inclined surfaces CS1 may be greater than the number of second inclined surfaces CS2.

With this configuration, the assembly tolerance of the first protrusion seated in the first protrusion groove PH1 can be easily compensated. For example, since the number of first inclined surfaces CS1 is greater than the number of second inclined surfaces CS2, the first protrusion comes into contact with more inclined surfaces, and the position of the first protrusion in the 1-1 protruding groove PH1a can be more accurately determined. It can be maintained.

In contrast, in the 1-2 protrusion groove PH1b, the number of inclined surfaces in contact with the first protrusion is smaller than that in the 1-1 protrusion groove PH1b, so the wits of the first protrusion can be easily adjusted.

In an embodiment, the second inclined surfaces CS2 may be arranged to be spaced apart from each other in the second direction (Y-axis direction). Additionally, the second groove bottom LS2 extends in the first direction (X-axis direction) so that the first protrusion can easily move in the first direction (X-axis direction) while being in contact with the second inclined surface CS2. That is, the position of the first protrusion can be easily adjusted in the 1-2 protrusion groove PH1b. And a lubricating member may be applied to this first protruding groove (PH1).

Additionally, in this embodiment, the first area AR1, the second area AR2, and the third area AR3 may have different heights in the first direction (X-axis direction). In an embodiment, the first area AR1 may be taller in the first direction (X-axis direction) than the second area AR2 and the third area AR3. Accordingly, a step may be located between the first area AR1 and the second area AR2.

Additionally, the second member 1131a may include a first groove gr1. In other words, the first groove gr1 may be located on the inner surface of the member base portion 1131aa. And the above-described second magnetic material can be seated in the first groove gr1. Additionally, there may be a plurality of first grooves gr1 depending on the number of second magnetic materials. That is, the number of first grooves gr1 may correspond to the number of second magnetic materials.

Additionally, the second member 1131a may include a member base portion 1131aa, a first extension portion 1131ab, and a second extension portion 1131ac.

The member base portion 1131aa may be located on the outermost side of the first camera actuator. The member base portion 1131aa may be located outside the first member. That is, the first member may be located between the member base portion 1131aa and the tilting guide portion.

The first extension portion 1131ab may extend from the edge of the member base portion 1131aa in a third direction (Z-axis direction). That is, the first extension portion 1131ab may extend from the member base portion 1131aa toward the holder 1131. This also applies to the second extension 1131ac. Additionally, the second extension portion 1131ac may extend in a third direction (Z-axis direction) from the edge of the member base portion 1131aa. In an embodiment, the first extension part 1131ab and the second extension part 1131ac may be located at the edge of the member base part 1131aa in the second direction (Y-axis direction). And the first extension part 1131ab and the second extension part 1131ac may be disposed between the upper member and the lower member.

Accordingly, the second member 1131a may have a groove formed by the first extension part 1131ab and the second extension part 1131ac. That is, the groove may be located between the first extension part 1131ab and the second extension part 1131ac. Accordingly, the first extension part 1131ab and the second extension part 1131ac can be connected to each other only by the member base part 1131aa. With this configuration, the second member 1131a can continuously receive a repulsive force from the second magnetic body seated in the center of the member base portion 1131aa, particularly in the first groove gr1.

Additionally, the first extension part 1131ab may be spaced apart from the second extension part 1131ac in the second direction (Y-axis direction) to form a space. The first member and the tilting guide part can be seated in this space. Additionally, the second magnetic material and the first magnetic material may be located in the space separated from each other.

Additionally, the first extension part 1131ab and the second extension part 1131ac may have the same length in the third direction (Z-axis direction). Accordingly, the coupling force and weight are balanced so that the holder can be tilted accurately without tilting to one side.

And the first extension part 1131ab and the second extension part 1131ac can be combined with the holder. It should be understood that in this specification, the coupling may be coupled to each other through a joining member other than the protrusion and groove structure described above. In an embodiment, the first extension part 1131ab and the second extension part 1131ac may include a third coupling groove 1131k formed in the third direction (Z-axis direction). Additionally, a coupling protrusion 1131m may be located in an area of the fourth seating groove 1131S4a that overlaps the first extension portion 1131ab and the second extension portion 1131ac in the third direction (Z-axis direction). The coupling protrusion 1131m may be positioned to correspond to the third coupling groove 1131k.

For example, a joining member such as epoxy may be applied to the third coupling groove 1131k. And the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension part 1131ab and the second extension part 1131ac. By this configuration, the second member 1131a and the holder 1131 can be coupled to each other. Additionally, through this combination, the repulsive force applied to the second member 1131a can be transmitted to the holder 1131.

However, as described above, it should be understood that the positions of the protrusion and groove structures may change with each other.

FIG. 9A is a perspective view of the tilting guide portion of the first camera actuator according to the embodiment, FIG. 9B is a perspective view in a different direction from FIG. 9A, and FIG. 9C is a view viewed from FF′ in FIG. 9A.

The tilting guide unit 1141 according to the embodiment includes a base (BS), a first protrusion (PR1) protruding from the first surface (1141a) of the base (BS), and a second protrusion (PR1) protruding from the second surface (1141b) of the base (BS). It may include a second protrusion PR2. Additionally, depending on the structure, the first protrusion and the second protrusion may have opposite sides, but will be described below based on the drawings. In addition, the first protrusion PR1 and the second protrusion PR2 may be formed integrally with the base BS, and as shown in the drawing, the first protrusion PR1 and the second protrusion RP2 have a spherical shape like a ball. You must understand that you can have . Additionally, the first protrusion PR1 and the second protrusion RP20 may not be protrusions or have a protruding shape, but may be balls.

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

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

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

Additionally, the 1-1st protrusion PR1a and the 1-2nd protrusion PR1b may have a curvature and, for example, may have a hemispherical shape. Additionally, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may contact the first groove of the housing at a point furthest from the first surface 1141a of the base BS.

Additionally, the tilting guide unit 1141 may include a second protrusion PR2 extending to one side on the second surface 1141a. According to the embodiment, the second protrusion PR2 may protrude toward the housing from the second surface 1141b. Additionally, there are a plurality of second protrusions PR2 and, in an embodiment, may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b.

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

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

The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to the embodiment, the 1-1 protrusion (PR1a) and the 1-2 protrusion (PR1b) are located in the center of the space between the 2-1 protrusion (PR2a) and the 2-2 protrusion (PR2b) in the second direction. can be located By this configuration, the actuator according to the embodiment can ensure that the X-axis tilt angle has the same range with respect to the X-axis. In other words, the tilting guide unit 1141 determines the range in which the holder can tilt the X axis (e.g., positive/negative range) on the The same can be provided as a standard.

Additionally, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to the embodiment, the 2-1 protrusion (PR2a) and the 2-2 protrusion (PR2b) are located in the center of the space between the 1-1 protrusion (PR1a) and the 1-2 protrusion (PR1b) in the first direction. can be located By this configuration, the actuator according to the embodiment can ensure that the Y-axis tilt angle has the same range with respect to the Y-axis. In other words, based on the 2-1st protrusion (PR2a) and the 2-2nd protrusion (PR2b), the tilting guide unit 1141 and the holder determine the Y-axis tiltable range (e.g., positive/negative range) on the Y-axis. The same can be provided as a standard.

Specifically, the first surface 1141a may include a first outer line (M1), a second outer line (M2), a third outer line (M3), and a fourth outer line (M4). The first outer line (M1) and the second outer line (M2) may face each other, and the third outer line (M3) and the fourth outer line (M4) may face each other. And a third outer line (M3) and a fourth outer line (M4) may be located between the first outer line (M1) and the second outer line (M2). And the first outer line (M1) and the second outer line (M2) are perpendicular to the first direction (X-axis direction), but the third outer line (M3) and the fourth outer line (M4) are perpendicular to the first direction (X axis direction). may be parallel to the axis direction).

At this time, the first protrusion PR1 may be located on the first virtual line VL1. Here, the first virtual line VL1 is a line that bisects the first outer line M1 and the second outer line M2. Alternatively, the first and third virtual lines (VL1, VL1') are lines that bisect the base (BS) in the second direction (Y-axis direction). Accordingly, the tilting guide unit 1141 can easily perform X-axis tilt through the first protrusion PR1. In addition, since the tilting guide unit 1141 performs X-axis tilt based on the first virtual line VL1, rotational force can be uniformly applied to the tilting guide unit 1141. Accordingly, the X-axis tilt can be performed precisely and the reliability of the device can be improved.

Additionally, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be symmetrically disposed with respect to the first virtual line VL1 and the second virtual line VL2. Alternatively, the 1-1st protrusion PR1a and the 1-2nd protrusion PR1b may be positioned symmetrically with respect to the first central point. With this configuration, when the X-axis is tilted, the support force supported by the first protrusion PR1 can be equally applied to the upper and lower sides with respect to the second imaginary line VL2. Accordingly, the reliability of the tilting guide unit can be improved. Here, the second virtual line VL2 is a line that bisects the third outer line M3 and the fourth outer line M4. Alternatively, the second and fourth virtual lines (VL2, VL2') are lines that bisect the base (BS) in the first direction (X-axis direction).

And the first center point may be the intersection of the first virtual line (VL1) and the second virtual line (VL2). Alternatively, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide unit 1141.

Additionally, the second surface 1141b may include a fifth outer line (M1'), a sixth outer line (M2'), a seventh outer line (M3'), and an eighth outer line (M4'). The fifth outer line (M1') and the sixth outer line (M2') may face each other, and the seventh outer line (M3') and the eighth outer line (M4') may face each other. And the seventh outer line (M3') and the eighth outer line (M4') may be located between the fifth outer line (M1') and the sixth outer line (M2'). And the fifth outer line (M1') and the sixth outer line (M2') are perpendicular to the first direction (X-axis direction), but the seventh outer line (M3') and the eighth outer line (M4') are perpendicular to the first direction (X-axis direction). 1 It can be parallel to direction (X-axis direction).

In addition, since the tilting guide unit 1141 performs Y-axis tilt based on the fourth virtual line (VL2'), rotational force can be uniformly applied to the tilting guide unit 1141. Accordingly, the Y-axis tilt can be performed precisely and the reliability of the device can be improved.

Additionally, the 2-1st protrusion PR2a and the 2-2nd protrusion PR2b may be symmetrically disposed on the third virtual line VL1' on the fourth virtual line VL2'. Alternatively, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned symmetrically with respect to the second central point. With this configuration, when the Y-axis is tilted, the support force supported by the second protrusion PR2 can be equally applied to the upper and lower sides of the tilting guide unit based on the fourth virtual line VL2'. Accordingly, the reliability of the tilting guide unit can be improved. Here, the third virtual line (VL1') is a line that bisects the fifth outer line (M1') and the sixth outer line (M2'). And the second center point may be the intersection of the third virtual line (VL1') and the fourth virtual line (VL2'). Alternatively, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide unit 1141.

In addition, the gap DR2 in the first direction (X-axis direction) between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b is the first direction (X-axis direction) of the second protrusion PR2. can be larger than the length. Accordingly, when performing an

Correspondingly, the gap ML2 in the second direction (Y-axis direction) between the 2-1st protrusion PR2a and the 2-2 protrusion PR2b is the second direction (Y-axis direction) of the first protrusion PR1. direction) can be greater than the length. Accordingly, when performing Y-axis tilt based on the 2-1st protrusion PR2a and the 2-2nd protrusion PR2b, the resistance caused by the first protrusion PR1 can be minimized.

FIG. 10 is a diagram illustrating a first driving unit of a first camera actuator according to an embodiment.

Referring to FIG. 10 , the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a Hall sensor unit 1153, a first substrate unit 1154, and a yoke unit 1155.

Additionally, as described above, the driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c that provide driving force by electromagnetic force. The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may each be located on the outer surface of the holder 1131.

Additionally, the driving coil 1152 may include a plurality of coils. In an embodiment, the driving coil 1152 may include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

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

The second camera actuator according to the embodiment controls the rotation of the mover 1130 to the first axis (X-axis direction) or the second axis (Y-axis direction) by electromagnetic force between the driving magnet 1151 and the driving coil 1152. When implementing OIS, the best optical characteristics can be provided by minimizing the occurrence of decenter or tilt phenomena.

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

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

The first substrate side 1154a and the second substrate side 1154b may be disposed to face each other. And the third substrate side 1154c may be located between the first substrate side 1154a and the second substrate side 1154b.

Additionally, the first substrate side 1154a may be located between the first housing side and the shield can, and the second substrate side 1154b may be located between the second housing side and the shield can. Additionally, the third substrate side 1154c may be located between the third housing side and the shield can and may be the bottom of the first substrate 1154.

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

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

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

The yoke portion 1155 may include a third yoke 1155a, a fourth yoke 1155b, and a fifth yoke 1155c. The third yoke (1155a) is located in the first seating groove and can be combined with the first magnet (1151a). Additionally, the fourth yoke (1155b) is located in the second seating groove and can be coupled to the second magnet (1151b). Additionally, the fifth yoke (1155c) is located in the third seating groove and can be combined with the third magnet (1151c). These third to fifth yokes (1155a to 1155c) allow the first to third magnets (1151a to 1151c) to be easily seated in the first to third seating grooves and coupled to the housing.

FIG. 11A is a perspective view of a first camera actuator according to an embodiment, FIG. 11B is a view viewed along PP' in FIG. 11A, FIG. 11C is a view viewed along QQ' in FIG. 11A, and FIG. 11D is a view of a first camera actuator according to an embodiment. This is a rear view of the camera actuator, and Figure 11e is a top view of the first camera actuator according to the embodiment.

Referring to FIGS. 11A to 11C, the first coil 1152a may be located on the first housing side 1121, and the first magnet 1151a may be located on the first holder outer surface 1131S1 of the holder 1131. there is. Accordingly, the first coil 1152a and the first magnet 1151a may be positioned opposite to each other. The first magnet 1151a may at least partially overlap the first coil 1152a in the second direction (Y-axis direction).

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

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

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

Additionally, the second protrusions PR2a and PR2b of the tilting guide unit 1141 may contact the first member 1126 of the first housing 1120. The second protrusion PR2 may be seated in the second protrusion groove PH2 formed on one side of the first member 1126. And when performing an X-axis tilt, the second protrusions PR2a and PR2b may be the reference axis (or rotation axis) of the tilt. Accordingly, the tilting guide unit 1141 and the mover 1130 can move along the second direction.

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

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

The tilting guide unit 1141 may be located on the fourth holder outer surface 1131S4 of the holder 1131 as described above. Additionally, the tilting guide unit 1141 may be seated in the fourth seating groove 1131S4a on the outer surface of the fourth holder. As described above, the fourth seating groove 1131S4a may include the above-described first area AR1, second area AR2, and third area AR3.

A second member 1131a is disposed in the first area AR1, and the second member 1131a may include a first groove gr1 formed on an inner surface. And the second magnetic material 1142 is disposed in the first groove gr1 as described above, and the repulsive force RF2 generated from the second magnetic material 1142 is applied to the fourth magnetic material RF2 of the holder 1131 through the second member 1131a. It can be delivered to the seating groove (1131S4a) (RF2'). Accordingly, the holder 1131 may apply force to the tilting guide unit 1141 in the same direction as the repulsive force RF2 generated by the second magnetic material 1142.

A first member 1126 may be disposed in the second area AR2. The first member 1126 may include a second groove (gr2) facing the first groove (gr1). Additionally, the first member 1126 may include a second protruding groove PH2 disposed on a surface corresponding to the second groove gr2. And the repulsive force RF1 generated from the first magnetic material 1143 may be applied to the first member 1126. Accordingly, the first member 1126 and the second member 1131a press the tilting guide portion 1141 disposed between the first member 1126 and the holder 1131 through the generated repulsive forces RF1 and RF2'. can do. Accordingly, even after the holder is tilted on the The association (or position) can be maintained.

A tilting guide unit 1141 may be disposed in the third area AR3. As described above, the tilting guide unit 1141 may include the first protrusion PR1 and the second protrusion PR2. At this time, the first protrusion PR1 and the second protrusion PR2 may be disposed on the second surface 1141b and the first surface 1141a of the base BS, respectively. Likewise, in other embodiments described below, the first protrusion PR1 and the second protrusion PR2 may be positioned in various ways on opposing surfaces of the base.

The first protruding groove PH1 may be located in the fourth seating groove 1131S4a. And the first protrusion PR1 of the tilting guide unit 1141 may be accommodated in the first protrusion groove PH1. Accordingly, the first protrusion PR1 may contact the first protrusion groove PH1. The maximum diameter of the first protrusion groove PH1 may correspond to the maximum diameter of the first protrusion PR1. This can be equally applied to the second protrusion groove PH2 and the second protrusion PR2. With this configuration, the first axis tilt based on the first protrusion PR1 and the second axis tilt based on the second protrusion PR2 can easily occur, and the tilt radius can be improved.

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

In addition, the second magnetic material 1142 and the first magnetic material 1143 may not overlap with the third coil 1151c or the optical member 1132 in the first direction (X-axis direction). In other words, in the embodiment, the second magnetic material 1142 and the first magnetic material 1143 may be arranged to be spaced apart from the third coil 1151c or the optical member 1132 in the third direction (Z-axis direction). Accordingly, the magnetic force transmitted to the third coil 1151c from the second magnetic material 1142 and the first magnetic material 1143 can be minimized. Accordingly, the camera actuator according to the embodiment can easily perform vertical movement (Y-axis tilt) and minimize power consumption.

Furthermore, as described above, the second Hall sensor 1153b located inside the third coil 1153c detects changes in magnetic flux, thereby enabling position sensing between the third magnet 1151c and the second Hall sensor 1153b. It can be done. At this time, the offset voltage of the second Hall sensor 1153b may change depending on the influence of the magnetic field formed from the second magnetic material 1142 and the first magnetic material 1143.

Based on the outermost side, the first camera actuator according to the embodiment includes a second member 1131a, a second magnetic body 1142, a first magnetic body 1143, a first member 1126, and a tilting guide unit ( 1141) and holder 1131 may be arranged in that order. However, since the second magnetic material is located within the second member and the first magnetic material is located within the first member, the second member, the first member, the tilting guide unit, and the holder may be arranged in that order.

In an embodiment, the distance between the second magnetic material 1142 and the first magnetic material 1143 in the third direction from the holder 1131 (or the optical member 1132) may be greater than the distance between the tilting guide units 1141. there is. Accordingly, the second Hall sensor 1153b under the holder 1131 can also be spaced apart from the second magnetic material 1142 and the first magnetic material 1143 by a predetermined distance. Accordingly, the second Hall sensor 1153b minimizes the influence of the magnetic field formed from the second magnetic material 1142 and the first magnetic material 1143, thereby preventing the Hall voltage from being concentrated in a positive or negative direction and becoming saturated. In other words, this configuration allows the Hall electrode to have a range in which Hall Calibration can be performed. Furthermore, the temperature is also affected by the electrode of the Hall sensor, and the resolution of the camera lens varies depending on the temperature, but in the embodiment, the case where the Hall voltage is concentrated in positive or negative is prevented, and the resolution of the lens is compensated accordingly. This makes it easy to prevent resolution degradation.

Additionally, a circuit design to compensate for the offset with respect to the output (i.e., Hall voltage) of the second Hall sensor 1153b can also be easily designed.

Additionally, according to an embodiment, a portion of the tilting guide unit 1141 may be located outside the fourth holder outer surface of the holder 1131 compared to the fourth holder outer surface.

The tilting guide unit 1141 may be seated in the fourth seating groove 1131S4a based on the base, excluding the first protrusion PR1 and the second protrusion PR2. In other words, the length of the base in the third direction (Z-axis direction) may be smaller than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). With this configuration, miniaturization can be easily achieved.

Additionally, the maximum length of the tilting guide unit 1141 in the third direction (Z-axis direction) may be greater than the length of the fourth seating groove 1131S4a in the third direction (Z-axis direction). Accordingly, as described above, the end of the second protrusion PR2 may be located between the outer surface of the fourth holder and the first member 1126. That is, at least a portion of the second protrusion PR2 may be located in a direction opposite to the third direction (Z-axis direction) than the holder 1131. In other words, the holder 1131 may be spaced a predetermined distance from the end of the second protrusion PR2 (a portion in contact with the second protrusion groove) in the third direction (Z-axis direction).

Additionally, the front surface 1131aes of the second member 1131a according to the embodiment may be spaced apart from the front surface 1126es of the first member 1126. In particular, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned toward the third direction (Z-axis direction) from the front surface 1126es of the first member 1126. Alternatively, the front surface 1131aes of the second member 1131a according to the embodiment may be located inside the front surface 1126es of the first member 1126. To this end, the first member 1126 may have a structure that is extended and bent inward. Additionally, a portion of the second member 1131a may be located in a groove formed by the extended and bent structure of the first member 1126 described above.

With this configuration, the second member 1131a is located inside the first member 1126, thereby improving space efficiency and achieving miniaturization. Furthermore, even when driving (tilting or rotating the mover 1130) by electromagnetic force is performed, the second member 1131a does not protrude to the outside of the first member 1126, thereby blocking contact with surrounding elements. Accordingly, reliability can be improved.

Additionally, a predetermined space may exist between the second magnetic material 1142 and the first magnetic material 1143. In other words, the second magnetic material 1142 and the first magnetic material 1143 may face each other with the same polarity.

Looking further at FIGS. 11D and 11E , in the first camera actuator according to the embodiment, a first magnetic body may be located in the first housing 1120 and a second magnetic body may be located in the mover 1130.

As described above, according to the embodiment, the first magnetic material and the second magnetic material are disposed to face each other, thereby generating a repulsive force. The repulsive force is a holding force, and the position between the first housing 1120 and the mover 1130 can be maintained by this repulsive force.

More specifically, the first member 1126 may include a second groove gr2 disposed on the outer surface. The first magnetic material 1143 may be located in the second groove gr2. And the second groove gr2 may be located on the opposite side (or opposite side) of the second protruding groove and the first member 1126.

And the second member 1131a may include a first groove (gr1) facing the second groove (gr2). The first groove gr1 may be located on the inner surface of the second member 1131a. And the second magnetic material 1142 may be located in the first groove gr1.

And the first member 1126 may be disposed on one side of the first housing 1120. Additionally, the second member 1131a may penetrate the first member 1126, come into contact with the holder 1131, and be coupled to the holder 1131. Accordingly, the tilting guide unit 1141 may be disposed between the first member 1126 and the mover (or holder, 1131).

Additionally, the second magnetic material 1142, the first magnetic material 1143, and the tilting guide unit 1141 may be sequentially arranged along the optical axis direction (Z-axis direction). Furthermore, the second magnetic material 1142, the first magnetic material 1143, and the tilting guide unit 1141 may overlap along the optical axis direction (Z-axis direction).

Furthermore, the plate CP may be located on the outer surface of the first member 1126. Accordingly, the plate CP, the second magnetic material 1142, and the first magnetic material 1143 may be sequentially arranged along the optical axis direction.

Additionally, the length LL1 of the plate CP in the first direction (X-axis direction) may be greater than the length LL2 of the second magnetic material 1142 in the first direction (X-axis direction). Additionally, the length LL2 of the second magnetic material 1142 in the first direction (X-axis direction) may be different from the length LL3 of the first magnetic material 1143 in the first direction (X-axis direction). For example, the length LL2 of the second magnetic material 1142 in the first direction (X-axis direction) may be greater than the length LL3 of the first magnetic material 1143 in the first direction (X-axis direction). In addition, the area (XY) of the plate CP may be larger than the area of the first member 1126 (XY plane) or the area of the second member 1131a (XY plane). Furthermore, the plate CP may be a non-magnetic material as described above. Accordingly, the plate CP suppresses the inflow of foreign substances into the first member 1126, the second member 1131a, the first magnetic material 1143, and the second magnetic material 1142 disposed inside the first housing 1120. can do.

In addition, the plate CP may be made of a magnetic material. At this time, the plate CP may form a magnetic force with the second magnetic material 1142. For example, an attractive force may be formed between the plate CP and the second magnetic material 1142. For example, the plate CP may form an attractive force with the second magnetic material 1142 as a yoke. Accordingly, the attractive force formed between the plate CP and the second magnetic material 1142 can reinforce the above-mentioned repulsive force. Accordingly, the holding force between the mover and the housing can be further increased. Additionally, the reliability of the first camera actuator may be improved due to improved holding force. For example, the second magnetic material 1142 has the same polarity as one surface 1143b of the first magnetic material 1143 on a surface (or area) 1142a facing the first magnetic material 1143. Additionally, the second magnetic material 1142 may have a polarity different from that of the plate CP on the surface 1142b facing the plate CP. At this time, the plate CP may be made of a magnetic material. Furthermore, the other side 1143a of the second magnetic material 1142 may have a different polarity than the one side 1143b. This explanation is based on the case where the first magnetic material 1143 and the second magnetic material 1142 are magnets.

With this configuration, the repulsive force between the second magnetic material 1142 and the first magnetic material 1143 can be further increased by the plate CP. In other words, an attractive force (PF) may occur between the second magnetic material 1142 and the plate CP. Furthermore, the plate CP is made of a magnetic material such as metal and can prevent magnetic flux from leaking. For example, the plate CP can prevent leakage magnetic flux generated from the first magnetic material 1143 or the second magnetic material 1142. Accordingly, the plate CP can improve the electrical reliability of the first camera actuator.

Additionally, in the housing wall portion 1124, the wall portion 1124a may not overlap the optical member 1132 along the optical axis direction. Additionally, in the housing wall portion 1124, the wall portion 1124a may be offset from the optical member 1132 along the optical axis direction.

And the housing wall portion 1124 may overlap the holder in the optical axis direction (Z-axis direction). Accordingly, for the purpose of preventing hand shake, the amount of movement may be limited by the housing wall portion 1124 even if the mover, that is, the holder, is tilted. Furthermore, the housing wall portion 1124 and the holder may collide with each other and no impact may occur in the first member or the second member. Thereby, the reliability of the first member and the second member can be improved.

FIG. 12A is a perspective view of a first camera actuator according to an embodiment, FIG. 12B is a view viewed from SS′ in FIG. 12A, and FIG. 12C is an example of movement of the first camera actuator shown in FIG. 12B.

Referring to FIGS. 12A to 12C , Y-axis tilt may be performed in the first camera actuator according to the embodiment. That is, OIS can be implemented by rotating in the first direction (X-axis direction).

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

Specifically, the repulsive force between the second magnetic material 1142 and the first magnetic material 1143 is transmitted to the second member 1131a and the first member 1126, and finally between the first member 1126 and the holder 1131. It may be transmitted to the tilting guide unit 1141 disposed in . Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-described repulsive force.

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

For example, the mover 1130 is moved along the OIS may be implemented by rotating the first angle θ1 in the direction (X1->X1a).

On the contrary, the mover 1130 is moved in the OIS may be implemented by rotating (X1->X1b) at a first angle (θ1) in the opposite direction.

The first angle θ1 may be ±1° to ±3°. However, it is not limited to this.

In the first camera actuator according to various embodiments below, the electromagnetic force can move the mover by generating a force in the described direction, or can move the mover in the described direction even if the force is generated in a different direction. In other words, the direction of the electromagnetic force described means the direction of the force generated by the magnet and coil to move the mover. For example, the first electromagnetic forces F1A and F1B may act in the third direction or in a direction opposite to the third direction.

Additionally, the center MC1 of the second magnetic material 1142 and the center MC2 of the first magnetic material 1143 may be arranged side by side along the third direction (Z-axis direction). In other words, the center line TL1 connecting the center MC1 of the second magnetic material 1142 and the center MC2 of the first magnetic material 1143 may be parallel to the third direction (Z-axis direction).

Additionally, the bisector line TL2 that bisects the second protrusion PR2 and corresponds to the third direction (Z-axis direction) may be parallel to the center line TL1 (or the bisector line). In other words, the bisector line TL2 may be a line that bisects the second protrusion PR2 in the first direction (X-axis direction), and may be plural.

In an embodiment, the bisector line TL2 may be spaced apart from the center line TL1 in the first direction (X-axis direction). The bisector line TL2 may be located above the center line TL1. With this configuration, the separation distance between the third coil 1152c or the third magnet 1151c increases, allowing the holder to more accurately tilt in two axes. Furthermore, when no current is applied to the coil, the position of the holder can be maintained the same.

More specifically, since the center MC1 of the second magnetic material 1142 and the center MC2 of the first magnetic material 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction), the second magnetic material 1142 ) and the first magnetic material 1143 (eg, repulsive force) may act at a distance in the first direction (X-axis direction) at the bisector TL2 corresponding to the optical axis. And momentum is generated in the mover 1130 by this force. However, when the center (MC1) of the second magnetic material 1142 and the center (MC2) of the first magnetic material 1143 are located on the bisector line TL2, the calibration progresses depending on the positions of the tilting guide unit and the second magnetic material 1142. There is an issue with it not being maintained after tilt. That is, the camera actuator according to the embodiment prevents the center (MC1) of the second magnetic material 1142 and the center (MC2) of the first magnetic material 1143 from being disposed on the bisector line (TL2), so that the tilting guide is used after tilting or rotating. The positions of the secondary and second magnetic materials 1142 can be maintained.

In another embodiment, the center MC1 of the second magnetic material 1142 and the center MC2 of the first magnetic material 1143 may be spaced apart in the first direction (X-axis direction).

Additionally, the center MC1 of the second magnetic material 1142 and the center MC2 of the first magnetic material 1143 may not be located on the bisector line TL2. For example, the center MC1 of the second magnetic material 1142 and the center MC2 of the first magnetic material 1143 may be located above the bisector line TL2.

As a result, the separation distance between the third coil 1152c or the third magnet 1151c increases, allowing the holder to more accurately tilt in two axes. Furthermore, when no current is applied to the coil, the position of the holder can be maintained the same.

Additionally, the second magnetic material 1142 and the first magnetic material 1143 may have different lengths in the first direction (X-axis direction).

In an embodiment, the area of the second magnetic body 1142 that is combined with the second member 1131a and tilted together with the mover 1130 may be larger than the area of the first magnetic body 1143. For example, the length of the second magnetic material 1142 in the first direction (X-axis direction) may be greater than the length of the first magnetic material 1143 in the first direction (X-axis direction). Additionally, the length of the second magnetic material 1142 in the second direction (Y-axis direction) may be greater than the length of the first magnetic material 1143 in the second direction (Y-axis direction). Additionally, the first magnetic material 1143 may be located within an imaginary straight line extending from both ends of the second magnetic material 1142 in the third direction.

With this configuration, even if one magnetic body (eg, the second magnetic body) is tilted during tilting or rotation, it is possible to easily prevent forces other than the vertical force from being generated due to the tilt. That is, even if the second magnetic body is tilted up and down together with the mover 1130, it may not receive a force (eg, repulsive force or attractive force) opposing the tilt from the first magnetic body 1143. Thereby, driving efficiency can be improved.

In addition, according to the embodiment, the gap (gap2) between the housing extension portion (1126b) and the holder 1131 is greater than the gap (gap1) between the first member 1126 and the second member 1131a (first and second extension portions). It can be small. At this time, the gap (gap2) between the housing extension 1126b and the holder 1131 may be a length in the first direction (X-axis direction). Additionally, the gap gap1 between the first member 1126 and the second member 1131a (first and second extension parts) may also be a length in the first direction (X-axis direction).

Additionally, when the housing wall portion (wall portion or housing extension portion) contacts the holder 1131, the housing (excluding the housing wall portion) may be spaced apart from the holder 1131 by a predetermined distance. In other words, when the holder 1131 is tilted, the holder 1131 may primarily collide with the housing wall. Accordingly, the reliability of the housing 1120 and the holder 1131 can be improved. Specifically, when the housing wall portion (wall portion or housing extension portion) contacts the holder 1131, the first member 1126 may be spaced apart from the second member 1131a by a predetermined distance. As a result, the impact applied to the first member 1126 and the second member 1131a can be eliminated.

In an embodiment, when the holder 1131 is tilted, the holder 1131 may collide with the housing wall or the housing in a plurality of areas sequentially or simultaneously.

When the holder 1131 is tilted, the holder 1131 first collides with the wall (collision 2, collision 3), and then secondarily collides with the housing extension or the third housing side (or wall portion) (collision 1). , conflict 4) may occur. Accordingly, the third housing side portion may be in contact with the housing wall portion. Additionally, the length of the third housing side portion in the optical axis direction may be greater than the length of the optical member 1132 in the optical axis direction. With this configuration, shock between the holder and the housing due to tilt does not occur in the first member and the second member, and shock absorption efficiency can be improved.

In addition, when the holder 1131 is tilted, the holder 1131 primarily collides with the housing extension or the third housing side (or wall portion) (collision 1, collision 4), and then secondarily collides with the holder 1131. may secondaryly collide with the wall (collision 2, collision 3). Accordingly, the third housing side portion may be in contact with the housing wall portion. Likewise, the length of the third housing side portion in the optical axis direction may be greater than the length of the optical member 1132 in the optical axis direction. With this configuration, shock between the holder and the housing due to tilt does not occur in the first member and the second member, and shock absorption efficiency can be improved.

In addition, when the holder 1131 is tilted, the holder 1131 collides with the housing extension or the third housing side (or wall) at the same time in multiple areas (collision 1 and collision 2 occur simultaneously, or collision 3 and collision 4 can occur simultaneously).

Furthermore, according to the above-described configuration, even if the mover 1130 is rotated (X1->X1a or X1b) at the first angle θ1 along the A collision between the member 1126 and the second member 1131a may not occur. That is, a collision between the holder 1131 and the housing wall 1124 may occur preferentially. As a result, the collision between the first member 1126 and the second member 1131a is suppressed, and the reliability of the first member 1126 and the second member 1131a, whose positions are maintained for OIS implementation, is improved. You can. Accordingly, the reliability of the first camera actuator can be improved.

FIG. 13A is a view viewed from RR' in FIG. 12A, FIG. 13B is an example of movement of the first camera actuator shown in FIG. 13A, and FIG. 13C is a housing wall diagram of movement of the first camera actuator shown in FIG. 13A. This is a diagram showing the conflict of wealth.

Referring to FIGS. 13A and 13B, X-axis tilt may be performed. That is, OIS can be implemented while the mover 1130 tilts or rotates in the Y-axis direction.

In an embodiment, the first magnet 1151a and the second magnet 1151b disposed in the holder 1131 each form electromagnetic force with the first coil 1152a and the second coil 1152b and move in the first direction (X The tilting guide unit 1141 and the mover 1130 can be tilted or rotated based on the axial direction.

Specifically, the repulsive force between the second magnetic material 1142 and the first magnetic material 1143 is transmitted to the first member 1126 and the holder 1131, and is finally disposed between the holder 1131 and the first member 1126. It can be transmitted to the tilting guide unit 1141. Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-described repulsive force.

And the 1-1 protrusion (PR1a) and the 1-2 protrusion (PR1b) are spaced apart in the first direction (X-axis direction) and form a first protrusion groove (PH1) in the fourth seating groove (1131S4a) of the holder 1131. ) can be supported by. In addition, in an embodiment, the tilting guide unit 1141 uses the first protrusion PR1 protruding toward the holder 1131 (e.g., toward the third direction) as a reference axis (or rotation axis), that is, in the first direction (X It can be rotated or tilted based on the axis direction.

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

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

As such, the second actuator according to the embodiment moves the mover 1130 in the first direction (X-axis direction) or the second direction (Y-axis direction) by electromagnetic force between the drive magnet in the holder and the drive coil disposed in the first housing. By controlling the rotation, the occurrence of decenter or tilt phenomenon can be minimized when implementing OIS and the best optical characteristics can be provided. In addition, as described above, 'Y-axis tilt' means rotating or tilting in the first direction (X-axis direction), and 'X-axis tilt' means rotating or tilting in the second direction (Y-axis direction). do.

According to an embodiment, the wall portion 1124a of the housing wall portion 1124 may not overlap the optical member 1132 along the optical axis direction. That is, the wall portion 1124a of the housing wall portion 1124 may be offset from the optical member 1132 along the optical axis direction. Additionally, the gap LLa in the second direction between the adjacent wall portions 1124a may be greater than the length LLb of the seating surface in the holder 1131 in the second direction. Additionally, the gap LLa in the second direction between adjacent wall portions 1124a may be greater than the length LLC of the optical member 1132 in the second direction. Accordingly, by preventing collision between the optical member 1132 and the wall portion 1124a, damage to the optical member 1132 can be prevented in advance. Furthermore, light emitted through the optical member 1132 may not be blocked by the wall portion 1124a.

As a modified example, a portion of the housing wall 1124 may overlap the optical member 1132 along the optical axis direction. At this time, the housing wall 1124 and the optical member 1132 may not contact each other. In other words, the housing wall 1124 and the optical member 1132 may not contact each other even when the mover tilts. Additionally, even at the maximum tilt of the mover, the housing wall portion 1124 and the optical member 1132 may be spaced apart from each other.

Additionally, the housing wall portion 1124 or the wall portion 1124a may overlap the first magnet 1151a and the second magnet 1151b along the optical axis direction (Z-axis direction). Accordingly, the impact caused by the first magnet 1151a and the second magnet 1151b, which have relatively large weights, can be easily absorbed by the wall portion 1124a.

Additionally, the gap LLa in the second direction between adjacent wall portions 1124a may be greater than the length LLd in the second direction of the second member 1131a. Additionally, the gap LLa in the second direction between the adjacent wall portions 1124a may be greater than the length LLe of the tilting guide portion 1141 in the second direction. Accordingly, the housing wall portion 1124 and the second member 1131a may not overlap in the optical axis direction (Z-axis direction). The housing wall portion 1124 and the second member 1131a may be shifted in the optical axis direction (Z-axis direction).

With this configuration, the effective area of the optical member 1132 can be maximized. In addition, in order to drive OIS, the holder 1131 has a small rotation radius, making it possible to miniaturize the camera actuator.

In an embodiment, the gap between the first magnetic substance 1143 and the second magnetic substance 1142 may be larger than the gap between the holder 1131 and the housing wall 1124. Additionally, even when the holder 1131 is tilted, the gap between the first groove and the second groove may be larger than the gap between the holder 1131 and the housing wall portion 1124. Furthermore, even if the holder 1131 is tilted and the housing wall portion and the holder 1131 are joined, the first groove and the second groove may be spaced apart from each other. For example, the gap (gap3) between the first magnetic material 1143 and the second magnetic material 1142 may be larger than the gap (gap4) between the holder 1131 and the wall portion 1124a. Due to this configuration, even if the holder 1131 moves due to movement or impact of the holder 1131, a collision between the holder 1131 and the housing wall portion 1124 may primarily occur. Accordingly, the occurrence of impact on the first member and the second member, which generate holding force for rotation, can be suppressed. As a result, the reliability of the first member and the second member can be improved, and the reliability of the first camera actuator can also be improved.

Additionally, when the housing wall portion (wall portion or housing extension portion) contacts the holder 1131, the housing (excluding the housing wall portion) may be spaced apart from the holder 1131 by a predetermined distance. In other words, when the holder 1131 is tilted, the holder 1131 may primarily collide with the housing wall. Accordingly, the reliability of the housing 1120 and the holder 1131 can be improved. Specifically, when the housing wall portion (wall portion or housing extension portion) contacts the holder 1131, the first member 1126 may be spaced apart from the second member 1131a by a predetermined distance. As a result, the impact applied to the first member 1126 and the second member 1131a can be eliminated.

Additionally, the housing wall portion 1124 may not overlap the first magnetic material 1143 or the second magnetic material 1142 along the optical axis direction.

Figure 14 is a perspective view of a second camera actuator according to an embodiment, Figure 15 is an exploded perspective view of a second camera actuator according to an embodiment, Figure 16 is a view viewed from DD' in Figure 14, Figures 17a, 17b and Figure 17C is a perspective view of the second housing in the second camera actuator according to the embodiment, Figures 18 and 19 are diagrams explaining each operation of the lens assembly according to the embodiment, and Figure 20 is a second camera according to the embodiment. This is a drawing explaining the operation of the actuator.

14 to 16, the second camera actuator 1200 according to the embodiment includes a lens unit 1220, a second housing 1230, a second driver 1250, a base unit 1260, and a second substrate. It may include a part 1270, a joining member 1280, a stopper part (ST), and a yoke part (YK). Furthermore, the second camera actuator 1200 may further include a second shield can (not shown), an elastic part (not shown), and a joining member (not shown).

The second shield can (not shown) is located in one area (e.g., the outermost) of the second camera actuator 1200, and includes components described later (lens unit 1220, second housing 1230, second It may be positioned to surround the driving unit 1250, the base unit 1260, the second substrate unit 1270, and the image sensor (IS).

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

The lens unit 1220 may be located within a second 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 and zoom function can be performed.

Additionally, the lens unit 1220 may be located within the second housing 1230. Accordingly, at least a portion of the lens unit 1220 may move along the optical axis or the third direction (Z-axis direction) within the second 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 fourth magnet 1252a and the fifth 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 1221d. The fourth lens group 1221d may be disposed behind the third lens group 1221c.

The first lens group 1221a may be fixed by combining with the 2-1 housing. 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 axis 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 may be performed by moving the third lens group 1221c.

However, the number of lens groups is not limited, and the above-described fourth lens group 1221d may not be present, or additional lens groups other than the fourth lens group 1121d may be disposed.

The moving assembly 1222 may include an opening area surrounding the lens group 1221. This moving assembly 1222 is used interchangeably with the lens assembly. 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 fourth magnet 1252a and the fifth 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 second 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 each be seated inside the 2-2 housing. For example, in the first lens assembly 1222a, the recess where the ball is placed may be positioned to face the first side. And in the second lens assembly 1222b, the recess where the ball is placed may be positioned to face the second side. A detailed explanation of this will be provided later.

Additionally, a second driving magnet may be seated on the outer surfaces of the first lens assembly 1222a and the second lens assembly 1222b. For example, the fifth magnet 1252b may be seated on the outer surface of the second lens assembly 1222b. A fourth magnet 1252a may be seated on the outer surface of the first lens assembly 1222a.

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

The second housing 1230 may include a 2-1 housing 1231 and a 2-2 housing 1232. 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.

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

The second housing 1230 (or the 2-2 housing 1232) may have a hole formed on the side. A fourth coil 1251a and a fifth 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.

In an embodiment, the second 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. A second driving coil 1251 may be located on the first side 1232a and the second side 1232b. Additionally, the second 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 1271 may be located on the outer surface of the first side 1232a, and the second substrate 1272 may be located on the outer surface of the second side 1232b.

And as another example, the first and second guide grooves facing the recesses (seating grooves where the first and second balls rest) of the first lens assembly 1222a may be located on the first side. Additionally, first and second guide grooves facing the recess of the second lens assembly 1222b may be located on the second side. At this time, a separate member (eg, guide part) including the first and second guide grooves may be combined with the 2-2 housing 1232. However, in this embodiment, the description is based on an integrated structure in which the first and second guide grooves are formed in the 2-2 housing 1232. Furthermore, as in other examples, 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. 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 a rail formed inside the first side 1232a of the second housing 1230 or a rail formed inside the second side 1232b of the second housing 1230. You can move in a third direction along the rail.

Accordingly, the first lens assembly 1222a and the second lens assembly 1222b can move in the third direction.

According to the embodiment, the first ball B1 may be disposed on the upper side of the first lens assembly 1222a or the second lens assembly 1222b. And the second ball B2 may be disposed on the lower side of the first lens assembly 1222a or the second lens assembly 1222b. For example, the first ball B1 may be located above the second ball B2. 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 2-2 housing 1232 may include first guide grooves GG1a and GG2a facing the first recess RS1. Additionally, the 2-2 housing 1232 may include second guide grooves GG1b and GG2b facing the second recess RS2. The first guide grooves (GG1a, GG2a) and the second guide grooves (GG1b, GG2b) may be grooves extending in the third direction (Z-axis direction). And the first guide grooves (GG1a, GG2a) and the second guide grooves (GG1b, GG2b) may be grooves of different shapes. For example, the first guide grooves GG1a and GG2a may be grooves whose sides are inclined, and the second guide grooves GG1b and GG2b may be grooves whose sides are perpendicular to the bottom.

A fourth magnet and a fourth coil may be located on the first side. And a fifth magnet and a fifth coil may be located on the second side. And the fifth magnet 1252b may be positioned to face the fifth coil 1251b. Additionally, the fourth magnet 1252a may be positioned to face the fourth coil 1251a.

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.

And the second driving unit 1250 may provide driving force to move the lens unit 1220 in the third direction (Z-axis direction). This second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252. Furthermore, the second driving unit 1250 may further include a second Hall sensor unit. The second Hall sensor unit 1253 includes at least one fourth Hall sensor 1253a and may be located inside or outside the second driving coil 1251.

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

The second driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in a hole formed on the side of the second housing 1230. And the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate portion 1270. Accordingly, the fourth coil 1251a and the fifth coil 1251b can receive current, etc. through the second substrate portion 1270.

The second driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be placed in the above-described groove of the moving assembly 1222 and may be positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

The base unit 1260 may be located between the lens unit 1220 and the image sensor IS. 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. However, it may not be limited to this structure.

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 at least one of an auto-focusing function and 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 second driving unit. For example, the first lens assembly 1222a and the second lens assembly 1222b may be moving lenses that move through a second driving unit and a guide pin (not shown), and the third lens assembly ( (not shown) may be a fixed lens, but is not limited thereto. For example, the third lens assembly (not shown) may function as a focator to image light at a specific location, and the first lens assembly may be a third lens assembly (not shown) that is a condenser. It can perform a variator function that re-images the image formed in another place. Meanwhile, in the first lens assembly, the distance to the subject or the image distance may change significantly, resulting in a large change in magnification, and the first lens assembly, which is a variable magnification, may play an important role in changing the focal length or magnification of the optical system. Meanwhile, the image point formed in the first lens assembly, which is a variable sensor, may differ slightly depending on the location. Accordingly, the second lens assembly can perform a position compensation function for the image formed by the inverter. For example, the second lens assembly may perform a compensator function to accurately image an image imaged by the second lens assembly 1222b at the actual image sensor location. However, the configuration of this embodiment will be described based on the drawings below.

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

The stopper unit (ST) includes a first stopper (ST1) disposed at one end of the 2-2 housing 1232 and a second stopper (ST2) disposed at the other end. The first stopper (ST1) and the second stopper (ST2) may be sequentially arranged along the optical axis direction.

Furthermore, a plurality of first stoppers ST1 may be disposed on the movement path of the first lens assembly and the movement path of the second lens assembly, respectively. For convenience, they will be described as a 1-1 stopper (ST1a) and a 1-2 stopper (ST1b). Likewise, a plurality of second stoppers ST2 may be disposed on the movement path of the first lens assembly and the movement path of the second lens assembly, respectively. Additionally, the description will be made as a 2-1 stopper (ST2a) and a 2-2 stopper (ST2b).

A 1-1 stopper (ST1a) and a 2-1 stopper (ST2a) may be located on the movement path of the first lens assembly. A 1-2 stopper (ST1b) and a 2-2 stopper (ST2b) may be located on the movement path of the second lens assembly.

The 1-1 stopper (ST1a) and the 1-2 stopper (ST1b) may overlap in the second direction. Alternatively, the 1-1 stopper (ST1a) and the 1-2 stopper (ST1b) may be shifted in the second direction.

And the 2-1 stopper (ST2a) and the 2-2 stopper (ST2b) may be positioned offset in the second direction. The distance between the 1-1 stopper (ST1a) and the 2-1 stopper (ST2a) in the third direction may be smaller than the distance between the 1-2 stopper (ST1b) and the 2-2 stopper (ST2b). This configuration reflects the fact that the movable distance (stroke) of the first lens assembly is smaller than the movable distance (stroke) of the second lens assembly.

In an embodiment, the second yoke unit or yoke unit YK may be disposed outside the second driving unit. For example, the yoke unit YK may be placed outside the fourth and fifth coils. The second yoke portion (YK) may include a first yoke (YK1) and a second yoke (YK2).

The first yoke (YK1) and the second yoke (YK2) may be disposed opposite to each other. For example, the first yoke (YK1) and the second yoke (YK2) may be positioned to correspond to each other based on the optical axis.

The first yoke (YK1) may be located adjacent to the fourth coil (1251a). The second yoke (YK2) may be located adjacent to the fifth coil (1251b). A fourth coil (1251a) and a fifth coil (1251b) may be located inside the first yoke (YK1) and the second yoke (YK2). Additionally, the first yoke (YK1), the fourth coil (1251a), the fifth coil (1251b), and the second yoke (YK2) may be sequentially arranged in one direction (eg, the second direction). The first yoke (YK1) may form an attractive force with the fourth magnet. Additionally, the second yoke (YK2) may form an attractive force with the fifth magnet. Accordingly, the postures of the first and second lens assemblies can be maintained.

Furthermore, the thickness of the first yoke (YK1) and the second yoke (YK2) may change in some areas. With this configuration, it is possible to prevent magnetic forces generated from the fourth and fifth magnets or the fourth and fifth coils from influencing other magnets and coils. For example, the first yoke YK1 may prevent the magnetic force generated by the fourth magnet from being applied to the fifth magnet and the fifth coil.

Referring to FIGS. 17A, 17B, and 17C, as described above, the second housing 1230 (particularly, the 2-2 housing 1232) includes a first side 1232a and a second side 1232b. can do. 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. Second driving coils may be located on the first side 1232a and the second side 1232b. Additionally, a second substrate portion may be seated on the outer surfaces of the first side portion 1232a and the second side portion 1232b. The second substrate portion is located outside the driving coil and may be electrically connected to the driving coil.

For example, a first substrate may be located on the outer surface of the first side 1232a, and a second substrate may be located on the outer surface of the second side 1232b.

Furthermore, first guide grooves GG1a and GG1b where the first and second balls rest may be located on the inner surface of the first side portion 1232a. The first guide grooves GG1a and GG1b may face the first and second recesses described above. Likewise, second guide grooves GG2a and GG2b where the first and second balls rest may be located on the inner surface of the second side portion 1232b. The first guide grooves GG1a and GG1b may face the first and second recesses described above.

Furthermore, the first side portion 1232a may include a first side hole 1232ah. A fourth magnet may be located in the first side hole 1232ah. Furthermore, the first side hole 1232ah may be shorter in length in the first direction than the fourth coil.

And the second side portion 1232b may include a second side hole 1232bh. A fifth magnet may be located in the second side hole 1232bh. Furthermore, the second side hole 1232bh may be shorter in length in the first direction than the fifth coil.

Furthermore, the 2-2 housing 1232 may include a housing hole 1232h disposed in either the upper or lower portion. Coupling can be easily accomplished through the housing hole 1232h, or inspection (eg, vision inspection) can be performed on the first lens assembly and the second lens assembly.

Additionally, the first guide grooves GG1a and GG1b located on the first side 1232a may extend in the third direction. Furthermore, the first guide grooves GG1a and GG1b may have different shapes. For example, one of the first guide grooves (GG1a) may be an inclined groove, and the other one (GG1b) may have a flat structure. This can be equally applied to the second guide grooves GG2a and GG2b. The first and second balls are seated in the inclined groove and the flat structure, allowing the first lens assembly or the second lens assembly to move along the optical axis direction.

Referring to FIGS. 18 and 19, in the camera device according to the embodiment, an electromagnetic force (DEM1) is generated between the fourth magnet (1252a) and the fourth coil (1251a) so that the first lens assembly (1222a) is horizontal to the optical axis. It can move along a rail located on the inner side of the housing through the first ball B1 and the second ball B2 in the third direction (Z-axis direction) or in a direction opposite to the third direction.

Specifically, in the camera device according to the embodiment, the fourth magnet 1252a may be provided on the first lens assembly 1222a by, for example, a vertical magnetization method. For example, in an embodiment, both the N and S poles of the fourth magnet 1252a may be positioned to face the fourth coil 1251a. Accordingly, the N and S poles of the fourth magnet 1252a may be arranged to correspond to areas in the fourth coil 1251a where current flows in the X-axis direction or the opposite direction.

In the embodiment, magnetic force is applied in the opposite direction of the second direction (Y-axis direction) from the N pole of the fourth magnet 1252a, and in the first direction (X-axis direction) from the fourth coil 1251a corresponding to the N pole. If the current DE1 flows in the opposite direction, the 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).

In addition, in the embodiment, magnetic force is applied from the S pole of the fourth magnet 1252a in the second direction (Y-axis direction), and from the fourth coil 1251a corresponding to the S pole in the first direction (X-axis direction). When the current (DE1) flows, the electromagnetic force (DEM1) may act in the Z-axis direction according to the interaction of electromagnetic force.

At this time, since the fourth coil 1251a is fixed to the side of the second housing, the first lens assembly 1222a on which the fourth magnet 1252a is disposed is Z by electromagnetic force DEM1 according to the current direction. It can move in the opposite direction to the axial direction. That is, the second driving magnet can move in the opposite direction of the electromagnetic force applied to the second driving 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 moves along the rail located on the inner surface of the housing through the first ball B1 and the second ball B2 in the third direction or the direction parallel to the optical axis direction (both directions). You can. At this time, the electromagnetic force (DEM1) can be controlled in proportion to the current (DE1) applied to the fourth coil (1251a).

The first lens assembly 1222a or the second lens assembly 1222b may include a first recess RS1 in which the first ball B1 rests. Additionally, the first lens assembly 1222a or the second lens assembly 1222b may include a second recess RS2 in which the second ball B2 rests. 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 B1 and the second ball B2 in the optical axis direction 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 (B1, B2).

And in the camera device according to the embodiment, the fifth magnet 1252b may be provided in the second lens assembly 1222b by, for example, a vertical magnetization method. For example, in an embodiment, both the N and S poles of the fifth magnet 1252b may be positioned to face the fifth coil 1251b. Accordingly, the N and S poles of the fifth magnet 1252b may be arranged to correspond to an area in the fifth coil 1251b where current flows in the X-axis direction or the opposite direction.

In the embodiment, the magnetic force (DM2) is applied in the second direction (Y-axis direction) from the N pole of the fifth magnet 1252b, and in the first direction (X-axis direction) from the fifth coil 1251b corresponding to the N pole. When the current DE2 flows, 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).

Additionally, in the embodiment, magnetic force is applied in a direction opposite to the second direction (Y-axis direction) at the S pole of the fifth magnet 1252b, and in the first direction (X-axis direction) at the fifth coil 1251b corresponding to the S pole. ), if the current (DE2) flows in the opposite direction, the electromagnetic force (DEM2) can act in the Z-axis direction according to the interaction of electromagnetic force.

At this time, since the fifth coil 1251b is fixed to the side of the second housing, the second lens assembly 1222b on which the fifth magnet 1252b is disposed is Z by the electromagnetic force (DEM2) according to the direction of the current. It can move in the opposite direction to the axial 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 second 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 fifth coil (1251b).

Referring to FIG. 20, in the camera device according to the embodiment, the second driving unit moves the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 along the third direction (Z-axis direction). Shiki can provide driving force (F3A, F3B, F4A, F4B). This second driving unit may include a second driving coil 1251 and a second driving magnet 1252, as described above. Additionally, the lens unit 1220 can move along the third direction (Z-axis direction) due to the electromagnetic force formed between the second driving coil 1251 and the second driving magnet 1252.

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

At this time, the first lens assembly 1222a on which the fourth magnet 1252a is seated moves in the third direction (Z-axis direction) due to the electromagnetic force (F3A, F3B) between the fourth coil 1251a and the fourth 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 fifth coil (1251b) and the fifth magnet (1252b), the second lens assembly (1222b) on which the fifth 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. With this configuration, the second camera actuator can be a fixed zoom or continuous zoom.

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

Referring to FIG. 21 , 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.).

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 fourth 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 a side of the second driver 1250. The circuit board 1300 may be electrically connected to the first driving unit and the second 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 device including it can transmit and receive various signals within the terminal.

Figure 22 is a perspective view of a first lens assembly, a first bonding member, a second bonding member, and a second lens assembly according to an embodiment.

Referring to FIG. 22, 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). And the first lens assembly 1222a and the second lens assembly 1222b can move along the optical axis direction (Z-axis direction) by the second driving unit. For example, an auto focus or zoom function may be performed by moving the first lens assembly 1222a and the second lens assembly 1222b.

Additionally, the first lens assembly 1222a may include a first lens holder LAH1 that holds and couples the second lens group 1221b. The first lens holder LAH1 may be combined with the second lens group 1221b. Additionally, the first lens holder LAH1 may include a first lens hole LH1 for accommodating the second lens group 1221b. That is, a second lens group 1221b including at least one lens may be disposed in the first lens hole LH1. The first lens holder LAH1 is the same as the accommodating parts (eg, the first accommodating part and the second accommodating part) described later, and are used interchangeably.

And the second lens assembly 1222b may include a second lens holder LAH2 holding and combining the third lens group 1221c. Additionally, the second lens holder LAH2 may include a second lens hole LH2 for accommodating the third lens group 1221c. That is, at least one lens may be disposed in the second lens hole LH2.

In an embodiment, each of the first lens assembly 1222a and the second lens assembly 1222b may include outer surfaces adjacent to each other. The first lens assembly 1222a may include a first outer surface MM1, and the second lens assembly 1222b may include a second outer surface MM2. The first outer surface MM1 may be a bottom surface of the first lens holder LAH1 based on the optical axis direction (Z-axis direction). And the third outer surface MM3, which will be described later, may be the upper surface of the first lens holder LAH1. Additionally, the second outer surface MM2 may be a top surface of the second lens holder LAH2, and the fourth outer surface MM4 may be a bottom surface of the second lens holder LAH2.

And the first outer surface MM1 and the second outer surface MM2 may overlap at least partially in the optical axis direction (Z-axis direction). In an embodiment, the first to fourth outer surfaces MM1 to MM4 may at least partially overlap each other in the optical axis direction (Z-axis direction).

For example, a joining member (not shown) may contact at least one of the first outer surface MM1 and the second outer surface MM2.

Figure 23 is a perspective view of a mobile terminal to which a camera module is applied according to an embodiment.

As shown in FIG. 23, 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 1000 and a second camera module 1000, and OIS may be implemented along with AF or zoom functions 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 24 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

For example, Figure 24 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. 24, 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 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 (20)

housing;
A mover including a holder and an optical member disposed on the holder;
A driving unit that moves the mover; and
It includes a tilting guide portion disposed between the housing and the mover to guide the tilting of the mover,
The housing includes a housing wall portion disposed on a side corresponding to an exit surface of the optical member,
The optical member changes the path of light from a first direction to a second direction,
A camera actuator wherein the housing wall portion overlaps the holder at least partially along the second direction. According to paragraph 1,
a first magnetic body disposed in the housing; and
It further includes a second magnetic body disposed to face the first magnetic body,
The tilting guide unit is pressed against the mover by the repulsive force of the first magnetic material and the second magnetic material. According to paragraph 2,
The housing includes a first member disposed on one side,
The mover includes a second member penetrating the first member,
The tilting guide unit is a camera actuator disposed between the first member and the mover. According to paragraph 3,
The first member includes a second groove located on the outer surface,
The second member includes a first groove facing the second groove,
The first magnetic material is disposed in the second groove,
The second magnetic body is a camera actuator disposed in the first groove. According to paragraph 4,
A camera actuator wherein the second magnetic material, the first magnetic material, and the tilting guide unit are sequentially arranged along the second direction. According to paragraph 4,
A camera actuator wherein a gap between the first magnetic body and the second magnetic body is greater than a gap between the holder and the housing wall. According to paragraph 4,
A camera actuator further comprising a plate disposed outside the first member. In clause 7,
The area of the plate is larger than the area of the first member or the area of the second member,
The plate is a non-magnetic camera actuator. In clause 7,
The plate is a magnetic material,
The second magnetic material has the same polarity as the first magnetic material on the surface facing the first magnetic material, and has a different polarity than the plate on the surface facing the plate. According to paragraph 1,
A camera actuator wherein the housing wall portion does not overlap the optical member along the second direction. According to paragraph 1,
The driving unit includes a first magnet, a second magnet facing the first magnet, and a third magnet disposed between the second magnet and the second magnet. According to clause 11,
A camera actuator wherein the housing wall portion overlaps at least one of the first magnet and the second magnet in a second direction. According to paragraph 3,
A camera actuator wherein the housing wall portion does not overlap the second member in a second direction. According to paragraph 3,
The housing wall portion includes a housing extension portion extending to an upper portion of the holder. According to clause 14,
A camera actuator wherein a gap between the housing extension and the holder is smaller than a gap between the first member and the second member. According to paragraph 3,
A camera actuator wherein when contact is made between the housing wall and the holder, the first member and the second member are spaced apart. According to clause 11,
The holder includes a first holder outer surface adjacent to the first magnet and a second holder outer surface adjacent to the second magnet,
A camera actuator wherein the housing wall portion overlaps an outer surface of the first holder or an outer surface of the second holder in the second direction. According to paragraph 4,
A camera actuator wherein the housing wall portion does not overlap the first magnetic material and the second magnetic material in the second direction. housing;
A mover including a holder and an optical member disposed on the holder;
A driving unit that moves the mover; and
A tilting guide portion disposed between the housing and the mover to guide the tilting of the mover,
The housing includes a first member disposed on one side,
The mover includes a second member penetrating the first member,
It further includes a plate disposed on the first member,
a first magnetic body disposed on the first member; and
It further includes; a second magnetic body disposed on the second member to face the first magnetic body,
The tilting guide unit is pressed against the mover by the repulsive force of the first magnetic material and the second magnetic material. According to clause 19,
The plate is closer to the second magnetic material than the first magnetic material, and forms an attractive force with the second magnetic material.

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