KR20210078103A - Camera actuator and camera device comprising the same - Google Patents

Abstract

An embodiment of the present invention discloses a camera actuator, which includes: a housing; a mover disposed within the housing; a rotating unit disposed between the housing and the mover; and a driving unit disposed within the housing and driving the mover. The rotating unit includes a base, a protrusion protruding from the first surface of the base, a yoke disposed in a receiving groove formed on the second surface of the base, and a coupling magnet disposed on the mover.

Description

CAMERA ACTUATOR AND CAMERA DEVICE COMPRISING THE SAME

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

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

On the other hand, the resolution of the image sensor increases as the pixel becomes higher and the size of the pixel becomes smaller. As the pixel becomes smaller, the amount of light received for the same time decreases. Therefore, the higher the pixel camera, the more severe the image shake caused by hand shake that occurs when the shutter speed is slowed in a dark environment. As a representative image stabilization (IS) technology, there is an optical image stabilizer (OIS) technology that corrects motion by changing the path of light.

According to the general OIS technology, the movement of the camera is detected through a gyrosensor, etc., and the lens is tilted or moved based on the detected movement, or the camera module including the lens and the image sensor can be tilted or moved. . When a lens or a camera module including a lens and an image sensor is tilted or moved for OIS, it is necessary to additionally secure a space for tilting or moving around the lens or camera module.

Meanwhile, an actuator for OIS may be disposed around the lens. In this case, the actuator for OIS may include two axes perpendicular to the optical axis Z, that is, an actuator in charge of X-axis tilting and an actuator in charge of Y-axis tilting.

However, according to the needs of ultra-slim and ultra-small camera devices, there is a large space constraint for arranging the actuator for OIS, and there is sufficient space for tilting or moving the lens or the camera module itself including the lens and image sensor for OIS. It can be difficult to guarantee. In addition, as the high-pixel camera becomes, it is desirable to increase the size of the lens in order to increase the amount of light received. However, there may be a limit in increasing the size of the lens due to the space occupied by the actuator for OIS.

In addition, when the zooming function, the AF function, and the OIS function are all included in the camera device, there is a problem in that the OIS magnet and the AF or zoom magnet are disposed close to each other to cause magnetic field interference.

The technical problem to be solved by the present invention is to provide a camera actuator applicable to an ultra-slim, ultra-miniature and high-resolution camera.

A camera actuator according to an embodiment of the present invention includes a housing; a mover disposed within the housing; a rotating part disposed between the housing and the mover; and a driving part disposed in the housing and driving the mover, wherein the rotating part includes a base, a protrusion protruding from a first surface of the base, and a yoke disposed in a receiving groove formed on a second surface of the base, and , and a coupling magnet disposed on the mover.

The mover may be tilted along a first axis based on the yoke and tilted along a second axis based on the protrusion.

The yoke may be disposed overlapping the coupling magnet with a third axis, and the third axis may be perpendicular to the first axis and the second axis.

The protrusion may be spaced apart from the coupling magnet and the yoke by the first axis.

The protrusion may include a first protrusion and a second protrusion disposed side by side along the first axis, and the first protrusion may overlap the second protrusion along the first axis.

The yoke may be disposed on a region between the first protrusion and the second protrusion.

A length of the yoke in the first axis may be less than a length in the first axis between the first protrusion and the second protrusion.

The housing may include a yoke seating groove in which the yoke is seated, and the yoke seating groove may be opened from an upper surface of the housing to a lower partial region.

The yoke may include a first seating surface and a second seating surface facing each other, and the first seating surface may be in contact with the mover.

It may further include an adhesive member disposed on the second seating surface.

The mover, a prism; and a prism holder in which the prism is seated, wherein the prism holder may include a first seating groove in which the coupling magnet is seated and a second seating groove in which the protrusion is seated.

The first seating groove may be positioned between adjacent second seating grooves.

The first seating groove may be overlapped with the second seating groove along the first axis.

At least a portion of the yoke may overlap the protrusion and the second axis.

The driving unit includes a driving magnet and a driving coil, the driving magnet includes a first magnet, a second magnet, and a third magnet, and the driving coil includes a first coil, a second coil and a third coil, , the first magnet and the second magnet are disposed symmetrically about the first axis on the mover, and the first coil and the second coil are symmetrically about the first axis between the housing and the mover. , the third magnet may be disposed on a bottom surface of the mover, and the third coil may be disposed on a bottom surface of the housing.

The yoke may have a shaft shape.

A camera actuator according to an embodiment includes a housing; a mover disposed within the housing; a rotating part disposed between the housing and the mover; and a driving unit disposed in the housing and driving the mover, wherein the rotating unit includes a base, a protrusion protruding from a first surface of the base, and a first magnet disposed in a groove formed in a second surface of the base and a second magnet disposed on the mover.

The first magnet and the second magnet may have different polarities, and the first magnet may have a shaft shape.

A camera actuator according to an embodiment includes a housing; a mover disposed within the housing; a rotating part disposed between the housing and the mover; and a driving unit disposed in the housing and driving the mover, wherein the rotating unit includes a base, a protrusion protruding from a first surface of the base, and a magnet disposed in a groove formed in a second surface of the base, and a yoke disposed on the mover.

The magnet may have a shaft shape.

According to an embodiment of the present invention, it is possible to provide a camera actuator applicable to ultra-slim, ultra-small and high-resolution cameras. In particular, the actuator for OIS can be efficiently disposed without increasing the overall size of the camera device.

According to an embodiment of the present invention, tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference with each other, and tilting in the X-axis direction and tilting in the Y-axis direction can be implemented with a stable structure, and for AF or Even with the actuator for zooming, it does not cause magnetic field interference, so precise OIS function can be realized.

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

1 is a perspective view of a camera module according to an embodiment;
Figure 2a is a perspective view in which the shield can is removed from the camera shown in Figure 1,
Figure 2b is a plan view of the camera shown in Figure 2a,
Figure 3a is a perspective view of the first camera module shown in Figure 2a,
Figure 3b is a side cross-sectional view of the first camera module shown in Figure 3a,
4 is an exploded perspective view of a second camera actuator according to the embodiment;
5A is a perspective view of a mover according to an embodiment;
Fig. 5b is a perspective view of the mover in a different direction than Fig. 5a;
6A is a perspective view of a prism holder according to an embodiment;
Figure 6b is a bottom view of the prism holder according to the embodiment,
6c is a side view of a prism holder according to an embodiment;
7A is a perspective view of a rotating part according to an embodiment;
Figure 7b is a perspective view of the rotating part in a different direction from Figure 7a,
7c is a cross-sectional view of the rotating part cut along AA' in FIG. 7a,
8A is a perspective view of a second camera actuator according to an embodiment in which a shield can and a substrate are removed;
Figure 8b is a cross-sectional view taken along line BB' in Figure 8a,
Figure 8c is a cross-sectional view taken along CC' in Figure 8a,
9 is a view showing a driving unit according to an embodiment;
10A is a perspective view of a second camera actuator according to an embodiment;
Figure 10b is a cross-sectional view taken along DD' in Figure 10a,
Figure 10c is an exemplary view of the movement of the second camera actuator shown in Figure 10b,
11A is a perspective view of a second camera actuator according to an embodiment;
11B is a cross-sectional view taken along line EE' in FIG. 11A;
11C is an exemplary view of the movement of the second camera actuator shown in FIG. 11B;
12A is a cross-sectional view of a second camera actuator according to another embodiment;
12B is a cross-sectional view of a second camera actuator according to another embodiment;
13 is a cross-sectional view of a driving unit according to another embodiment;
14 is a perspective view of an actuator for AF or Zoom according to another embodiment of the present invention;
15 is a perspective view in which some components are omitted from the actuator according to the embodiment shown in FIG. 14;
16 is an exploded perspective view in which some components are omitted from the actuator according to the embodiment shown in FIG. 14;
17A is a perspective view of a first lens assembly in an actuator according to the embodiment shown in FIG. 16;
17B is a perspective view with some components removed from the first lens assembly shown in FIG. 17A;
18 is a perspective view of a third lens assembly in the actuator according to the embodiment shown in FIG. 16;
19 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied;
20 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

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

Terms including an ordinal number such as second, first, etc. may be used to describe various elements, but the elements are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

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

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

FIG. 1 is a perspective view of a camera module according to an embodiment, FIG. 2A is a perspective view in which a shield can is removed from the camera module shown in FIG. 1 , and FIG. 2B is a plan view of the camera module shown in FIG. 2A .

Referring to FIG. 1 , a camera module 1000 may include a single or a plurality of camera modules. For example, the camera module 1000 may include a first camera module 1000A and a second camera module 1000B. The first camera module 1000A and the second camera module 1000B may be covered by a predetermined shield can 1210 .

1, 2A, and 2B together, the first camera module 1000A may include a single or a plurality of actuators. For example, the first camera module 1000A may include a first camera actuator 1100 and a second camera actuator 1200 .

The first camera actuator 1100 may be electrically connected to the circuit board 1410 of the first group, and the second camera actuator 1200 may be electrically connected to the circuit board 1420 of the second group, and not shown. However, the second group of circuit boards 1420 may be electrically connected to the first group of circuit boards 1410 . The second camera module 1000B may be electrically connected to the third group of circuit boards 1430 .

The first camera actuator 1100 may be a zoom actuator or an auto focus (AF) actuator. For example, the first camera actuator 1100 may support one or a plurality of lenses and may perform an autofocusing function or a zooming function by moving the lenses according to a control signal of a predetermined control unit.

The second camera actuator 1200 may be an optical image stabilizer (OIS) actuator.

The second camera module 1000B may include fixed focal length les disposed in a predetermined barrel (not shown). Fixed focal length les may be referred to as “single focal length lenses” or “single focal length lenses”.

The second camera module 1000B may be disposed in a predetermined housing (not shown) and include an actuator (not shown) capable of driving the lens unit. The actuator may be a voice coil motor, a micro actuator, a silicon actuator, etc., and may be applied in various ways such as an electrostatic method, a thermal method, a bimorph method, an electrostatic force method, and the like, but is not limited thereto.

Next, FIG. 3A is a perspective view of the first camera module shown in FIG. 2A , and FIG. 3B is a side cross-sectional view of the first camera module shown in FIG. 3A .

Referring to FIG. 3A , the first camera module 1000A is disposed on one side of the first camera actuator 1100 and the first camera actuator 1100 having a zooming function and an AF function, and a second OIS function is provided. It may include a camera actuator 1200 .

Referring to FIG. 3B , the first camera actuator 1100 may include an optical system and a lens driver. For example, the first actuator 1100 may include at least one of a first lens assembly 1110 , a second lens assembly 1120 , a third lens assembly 1130 , and a guide pin 50 . .

Also. The first camera actuator 1100 may include a driving coil 1140 and a driving magnet 1160 to perform a high-magnification zooming function.

For example, the first lens assembly 1110 and the second lens assembly 1120 may be a moving lens that moves through the driving coil 1140 , the driving magnet 1160 , and the guide pin 50 . , the third lens assembly 1130 may be a fixed lens, but is not limited thereto. For example, the third lens assembly 1130 may function as a concentrator to image light at a specific location, and the first lens assembly 1110 may It is possible to perform the function of a variator that re-images the formed image to another place. On the other hand, in the first lens assembly 1110, the distance or image distance from the subject is changed a lot, so the magnification change may be large, and the first lens assembly 1110, which is the variable magnification, plays an important role in changing the focal length or magnification of the optical system. can do. On the other hand, the image formed by the first lens assembly 1110, which is a variable changer, may be slightly different depending on the location. Accordingly, the second lens assembly 1120 may perform a position compensation function for the image formed by the changer. For example, the second lens assembly 1120 performs a compensator function that accurately forms an image formed by the first lens assembly 1110 , which is a variable magnifier, at the actual image sensor 1190 location. can do.

For example, the first lens assembly 1110 and the second lens assembly 1120 may be driven by electromagnetic force due to the interaction between the driving coil 1140 and the driving magnet 1160 .

In addition, a predetermined image sensor 1190 may be disposed perpendicular to the optical axis direction of the parallel light.

Next, a detailed description of the second camera actuator 1200 will be described later with reference to FIG. 4 .

In addition, the camera module according to the embodiment can implement OIS through control of the optical path through the camera actuator, thereby minimizing the occurrence of a decent or tilt phenomenon and providing the best optical characteristics. have.

1 to 3A and 3B and their description are intended to explain the overall structure and operating principle of the camera module according to an embodiment of the present invention, so an embodiment of the present invention is shown in FIGS. 1 to 3A and B It is not limited to the detailed configuration shown.

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

Hereinafter, the control method and detailed structure of the second actuator according to an embodiment of the present invention will be described in more detail.

4 is an exploded perspective view of a second camera actuator according to an embodiment.

Referring to FIG. 4 , the second camera actuator 1200 according to the embodiment includes a shield can 1210 , a housing 1220 , a mover 1230 , a rotating unit 1240 , and a driving unit 1250 .

First, the mover 1230 includes a prism holder 1231 and a prism 1232 seated on the prism holder 1231 . The rotation unit 1240 includes a rotation plate 1241 , a yoke 1242 in contact with different surfaces of the rotation plate 1241 , and a coupling magnet 1243 coupled to the rotation plate 1241 . In addition, the driving unit 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor unit 1253 , and a substrate unit 1254 .

The shield can 1210 may be positioned in one region (eg, the outermost side) of the second camera actuator 1200 to surround the rotating part 1240 and the driving part 1250 to be described later.

The shield can 1210 may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of a malfunction in the rotating unit 1240 or the driving unit 1250 may be reduced.

The housing 1220 may be located inside the shield can 1210 . In addition, the housing 1220 may be located inside the substrate part 1254 to be described later. The housing 1220 may be fastened to the shield can 1210 by fitting or matching with each other.

The housing 1220 may include a first housing side 1221 , a second housing side 1222 , a third housing side 1223 , and a fourth housing side 1224 .

The first housing side 1221 and the second housing side 1222 may be disposed to face each other. Also, the third housing side 1223 and the fourth housing side 1224 may be disposed between the first housing side 1221 and the second housing side 1222 .

The third housing side 1223 may abut the first housing side 1221 , the second housing side 1222 , and the fourth housing side 1224 . And the third housing side 1223 may be a bottom surface of the housing 1220 .

Here, the bottom means one side in the first direction. And the first direction is the X-axis direction in the drawing, and may be used interchangeably with the second axis direction, the second axis, and the like. The second direction is the Y-axis direction in the drawing, and may be used interchangeably with the first axis direction, the first axis, and the like. The second direction is a direction perpendicular to the first direction. In addition, the third direction is the Z-axis direction in the drawing, and may be used interchangeably with the third axis direction. The direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and tilted by the second camera actuator. can A detailed description thereof will be given later.

The first housing side 1221 may include a first housing hole 1221a. A first coil 1252a, which will be described later, may be positioned in the first housing hole 1221a.

Also, the second housing side 1222 may include a second housing hole 1222a. In addition, a second coil 1252b to be described later may be positioned in the second housing hole 1222a.

The first coil 1252a and the second coil 1252b may be coupled to the substrate unit 1254 . In an embodiment, the first coil 1252a and the second coil 1252b may be electrically connected to the substrate unit 1254 so that current may flow. This current is a component of the electromagnetic force that the second camera actuator can tilt with respect to the X-axis.

Also, the third housing side portion 1223 may include a third housing hole 1223a. A third coil 1252c, which will be described later, may be positioned in the third housing hole 1223a. The third coil 1252c may be coupled to the substrate unit 1254 . In an embodiment, the third coil 1252c may be electrically connected to the substrate unit 1254 so that current may flow. This current is a component of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.

The fourth housing side 1224 may include a first housing groove 1224a. A yoke 1242 to be described later may be disposed in a region facing the first housing groove 1224a. Accordingly, the housing 1220 may be coupled to the rotation plate 1241 and the prism holder 1231 by magnetic force or the like.

Also, the housing 1220 may include a receiving portion 1225 formed by the first to fourth housing side portions 1221 to 1224 . The mover 1230 and the rotating part 1240 may be positioned in the receiving part 1225 .

And, the mover 1230 includes the prism holder 1231 and the prism 1232 seated on the prism holder 1231 as described above.

The prism holder 1231 may be seated in the receiving part 1225 of the housing 1220 . The prism holder 1231 is a first prism outer surface to a fourth prism corresponding to the first housing side 1221 , the second housing side 1222 , the third housing side 1223 , and the fourth housing side 1224 , respectively. It may include an outer surface. A detailed description of this will be provided later.

The prism 1232 may be seated on the prism holder 1231 . To this end, the prism holder 1231 may have a seating surface, and the seating surface may be formed by a receiving part. The prism 1232 may include a reflector disposed therein. However, the present invention is not limited thereto. In addition, the prism 1232 may reflect light reflected from the outside (eg, an object) into the camera module. In other words, the prism 1232 may improve the spatial limit of the first camera actuator and the second camera actuator by changing the path of the reflected light. As such, it should be understood that the camera module may extend the optical path while minimizing thickness to provide a high range of magnifications.

The rotating part 1240 is disposed between the rotating plate 1241 , the yoke 1242 disposed between the rotating plate 1241 and the housing 1220 (fourth housing side), and the rotating plate 1241 and the mover 1230 . It may include a coupling magnet 1243 that is.

The rotation plate 1241 may be coupled to the mover 1230 and the housing 1220 between the above-described mover 1230 and the housing 1220 .

The rotation plate 1241 may include protrusions spaced apart from each other in the second direction (Y-axis direction). A plurality of protrusions PR1 may be provided, and may be spaced apart from each other in the first direction (X-axis direction) or the second direction (Y-axis direction). Also, the plurality of protrusions PR1 may be arranged side by side along the first axis “??*” or the second axis direction. For example, the plurality of protrusions PR1 may be parallel to the first axis direction (Y-axis direction). Alternatively, the plurality of protrusions PR1 may be positioned in parallel in the second axis direction (X-axis direction), so that the protrusions PR1 may be centered on any one of the first axis and the second axis. In other words, the mover 1230 may rotate about any one of the first axis and the second axis. For example, the mover 1230 may rotate along the Y axis through the protrusion PR1. In addition, hereinafter, the plurality of protrusions PR1 will be described based on being positioned in parallel in the first axial direction (Y-axis direction), which will be described in detail later.

The yoke 1242 is disposed between the rotation plate 1241 and the housing 1220 and may be coupled to a coupling magnet 1243 to be described later by magnetic force. The yoke 1242 may include a metal material having a magnetic force. In addition, the yoke 1242 includes a metal material having the above-described magnetic force inside, and may be formed of a non-metal material outside. In an embodiment, the yoke 1242 may be made of a magnetic material and may have a shaft shape. The yoke 1242 may have a length in the first direction greater than a length in the second direction. In addition, the length of the first yoke 1242 in the second direction may be smaller than the length between the first and second protrusions, which will be described later. Accordingly, the yoke 1242 may perform X-axis tilt while having a shaft shape between the first protrusion and the second protrusion.

The yoke 1242 may be positioned to face a coupling magnet 1243 , which will be described later, based on the rotation plate 1241 . Accordingly, the yoke 1242 may at least partially overlap the coupling magnet 1243 in the third direction. Accordingly, the coupling force between the mover 1230 and the rotating part 1240 may be improved through the yoke 1242 and the coupling magnet 1243 . And the yoke 1242 may be a rotation axis of tilt about the other one of the first axis and the second axis.

That is, the yoke 1242 may be a rotation axis of tilt about a different axis or a vertical axis from the protrusion portion PR1 of the rotation plate 1241 . Accordingly, the rotation plate 1241 , the coupling magnet 1243 , and the mover 1230 may be rotated by the driving force of the driving unit 1250 along the first axis or the second axis with respect to the yoke 1242 . For example, the mover 1230 may perform an X-axis tilt through the yoke 1242 . Hereinafter, it will be described based on this.

In addition, the yoke 1242 may be coupled to any one of the rotation plate 1241 and the housing 1220 through an adhesive member. Accordingly, the mover 1230 may rotate with respect to the yoke 1242 . In addition, the yoke 1242 has a contact area with the other one of the rotation plate 1241 and the housing 1220 , and the contact area moves around the other one of the first axis and the second axis (eg, the second axis). can To this end, a lubricating member may be positioned between the yoke 1242 and the other one of the rotating plate 1241 and the housing 1220 .

The yoke 1242 may be located within the housing 1220 . The yoke 1242 may be seated in the above-described first housing groove 1224a. Accordingly, the yoke 1242 may be coupled to the housing 1220 . As described above, the yoke 1242 may be coupled to the housing 1220 through an adhesive member. In addition, the rotation plate 1241 is coupled by the magnetic force between the coupling magnet 1243 and the yoke 1241, and coupled through the coupling magnet 1243 and the prism holder 1231 (or the mover 1230 and the coupling member). Accordingly, the housing 1220 and the mover 1230 may be coupled to each other.

The driving unit 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor unit 1253 , and a substrate unit 1254 .

The driving magnet 1251 may include a plurality of magnets. In an embodiment, the driving magnet 1251 may include a first magnet 1251a, a second magnet 1251b, and a third magnet 1251c.

The first magnet 1251a , the second magnet 1251b , and the third magnet 1251c may be located on the outer surface of the prism holder 1231 , respectively. In addition, the first magnet 1251a and the second magnet 1251b may be positioned to face each other. In addition, the third magnet 1251c may be located on the bottom of the outer surfaces of the prism holder 1231 . A detailed description thereof will be given later.

The driving coil 1252 may include a plurality of coils. In an embodiment, the driving coil 1252 may include a first coil 1252a , a second coil 1252b , and a third coil 1252c .

The first coil 1252a may be positioned to face the first magnet 1251a. Accordingly, the first coil 1252a may be positioned in the first housing hole 1221a of the first housing side 1221 as described above.

Also, the second coil 1252b may be positioned to face the second magnet 1251b. Accordingly, the second coil 1252b may be located in the second housing hole 1222a of the second housing side 1222 as described above.

The first coil 1252a may be positioned to face the second coil 1252b. That is, the first coil 1252a may be positioned symmetrically with the second coil 1252b in the first direction. This may be equally applied to the first magnet 1251a and the second magnet 1251b. With this configuration, the X-axis tilting can be accurately performed without inclination to one side by the electromagnetic force between the first coil 1252a and the first magnet 1251a and the electromagnetic force between the second coil 1252b and the second magnet 1251b. .

The third coil 1252c may be positioned to face the third magnet 1251c. Accordingly, the second coil 1252c may be positioned in the third housing hole 1223a of the third housing side 1223 as described above. The third coil 1252c may perform Y-axis tilting of the mover 1230 and the rotating unit 1240 with respect to the housing 1220 by generating electromagnetic force with the third magnet 1251c.

Here, X-axis tilting means tilting based on the X-axis, and Y-axis tilting means tilting based on the Y-axis.

The Hall sensor unit 1253 may include a plurality of Hall sensors. In an embodiment, the Hall sensor unit 1253 may include a first Hall sensor 1253a and a second Hall sensor 1253b. The first Hall sensor 1253a may be located inside the first coil 1253a or the second coil 1252b. The first Hall sensor 1253a may detect a change in magnetic flux inside the first coil 1253a or the second coil 1252b. Accordingly, position sensing between the first and second magnets 1251a and 1251b and the first Hall sensor 1253a may be performed. The camera actuator according to the embodiment may control the X-axis tilt through this.

Also, the second Hall sensor 1253b may be located inside the third coil 1253c. The second Hall sensor 1253b may detect a change in magnetic flux inside the third coil 1253c. Accordingly, position sensing between the third magnet 1251c and the second Hall sensor 1253b may be performed. The camera actuator according to the embodiment may control the Y-axis tilt through this.

The substrate unit 1254 may be positioned below the driving unit 1250 . The substrate unit 1254 may be electrically connected to the driving coil 1252 and the Hall sensor unit 1253 . For example, the substrate unit 1254 may be coupled to the driving coil 1252 and the Hall sensor unit 1253 by SMT. However, it is not limited to this method.

The substrate unit 1254 may be positioned between the shield can 1210 and the housing 1220 , and may be coupled to the shield can 1201 and the housing 1220 . The coupling method may be variously made as described above. And through the above-described combination, the driving coil 1252 and the Hall sensor unit 1253 may be located in the outer surface of the housing 1220 .

The board unit 1254 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), and a rigid printed circuit board (RigidFlexible PCB). have. However, it is not limited to this type.

5A is a perspective view of a mover according to the embodiment, FIG. 5B is a perspective view of the mover in a different direction from FIG. 5A, FIG. 6A is a perspective view of a prism holder according to the embodiment, and FIG. 6B is a bottom surface of the prism holder according to the embodiment Figure 6c is a side view of the prism holder according to the embodiment.

5A and 5B , the prism 1232 may be seated on the prism holder. The prism 1232 may be a right-angle prism as a reflective part, but is not limited thereto.

The prism 1232 may have a protrusion 1232a on a portion of its outer surface. It can be easily coupled to the prism holder through the protrusion 1232a. In addition, the prism 1232 may be seated on the seating surface of the prism holder on the bottom surface 1232b. Accordingly, the bottom surface 1232b of the prism 1232 may correspond to the seating surface of the prism holder. In an embodiment, the bottom surface 1232b may be formed of an inclined surface in the same manner as the seating of the prism holder. Accordingly, it is possible to prevent the prism 1232 from being separated from the prism holder according to the movement of the prism and the movement of the prism holder.

6A to 6C , the prism holder 1231 may include a seating surface 1231k on which the prism 1232 is seated. The seating surface 1231k may be an inclined surface. In addition, the prism holder 1231 may include a jaw portion 1231b on the seating surface 1231k.

In the prism holder 1231 , the jaw portion 1231b may be coupled to the protrusion portion 1232a of the prism 1232 .

In addition, the prism holder 1231 may include a plurality of outer surfaces. For example, the prism holder 1231 may include a first prism outer surface 1231S1 , a second prism outer surface 1231S2 , a third prism outer surface 1231S3 , and a fourth prism outer surface 1231S4 .

The first prism outer surface 1231S1 may be positioned to face the second prism outer surface 1231S2 . That is, the first prism outer surface 1231S1 may be symmetrically disposed with respect to the second prism outer surface 1231S2 and the first direction (X-axis direction).

The first prism outer surface 1231S1 may be positioned to face the first housing side portion 1221 . In addition, the second prism outer surface 1231S2 may be positioned to face the second housing side 1222 .

In addition, the first prism outer surface 1231S1 may include a first seating groove 1231S1a. In addition, the second prism outer surface 1231S2 may include a second seating groove 1231S2a. The first seating groove 1231S1a and the second seating groove 1231S2a may be symmetrically disposed with respect to the first direction (X-axis direction).

A first magnet 1251a may be disposed in the first seating groove 1231S1a, and a second magnet 1251b may be disposed in the second seating groove 1231S2a. The first magnet 1251a and the second magnet 1251b may also be disposed symmetrically with respect to the first direction (X-axis direction).

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 the magnets is directed to the outer surface of the first prism (S1231S1) and the outer surface of the second prism (1231S2) on the same axis. can be provided on For example, a region (eg, a portion having the strongest electromagnetic force) applied to the first prism outer surface S1231S1 and a region applied to the second prism outer surface S1231S1 (eg, a portion having the strongest electromagnetic force) are It may be positioned on an axis parallel to the second direction (Y-axis direction). Thereby, X-axis tilting can be made accurately.

A first magnet 1251a may be disposed in the first seating groove 1231S1a, and a second magnet 1251b may be disposed in the second seating groove 1231S2a.

The third prism outer surface 1231S3 is in contact with the first prism outer surface 1231S1 and the second prism outer surface 1231S2, and in the second direction from the first prism outer surface 1231S1 and the second prism outer surface 1231S2 It may be an outer surface extending in the (Y-axis direction). In addition, the third prism outer surface 1231S3 may be positioned between the first prism outer surface 1231S1 and the second prism outer surface 1231S2 . The third prism outer surface 1231S3 may be a bottom surface of the prism holder 1231 . The third prism outer surface 1231S3 may be positioned to face the third housing side portion 1223 . In addition, the third prism outer surface 1231S3 may be in contact with the third housing side portion 1223 .

In addition, the third prism outer surface 1231S3 may include a third seating groove 1231S3a. A third magnet 1251c may be disposed in the third seating groove 1231S3a. Also, the third housing hole 1223a may at least partially overlap the third seating groove 1231S3a in the first direction (X-axis direction). Accordingly, the third magnet 1251c in the third seating groove 1231S3a and the third coil 1252c in the third housing hole 1223a may be positioned to face each other. In addition, the third magnet 1251c and the third coil 1252c generate electromagnetic force so that the camera actuator can tilt the Y-axis.

In addition, while the X-axis tilt is performed by a plurality of magnets (first and second magnets 1251a and 1251b), the Y-axis tilt can be performed only by the third magnet 1251c. In an embodiment, the third seating groove 1231S3a may have a larger width than the first seating hole 1231S1a or the second seating hole 1231S2a. With this configuration, the Y-axis tilt can be performed with current control similar to the X-axis tilt.

The fourth prism outer surface 1231S4 is in contact with the first prism outer surface 1231S1 and the second prism outer surface 1231S2, and extends in the first direction (X-axis direction) from the third prism outer surface 1231S3 can be side. Also, the fourth prism outer surface 1231S4 may be positioned between the first prism outer surface 1231S1 and the second prism outer surface 1231S2 .

The fourth prism outer surface 1231S4 may include a fourth seating groove 1231S4a. The rotation plate 1241 may be seated in the fourth seating groove 1231S4a.

The fourth seating groove 1231S4a may be positioned to face the first surface of the rotation plate. In addition, the fourth seating groove 1231S4a may include a 4-1 seating groove 1231S4a-1 and a 4-2 seating groove 1231S4a-2. The 4-2th seating groove 1231S4a-2 may be plural. In an embodiment, a 4-1 th seating groove 1231S4a-1 may be positioned between the plurality of 4-2 th seating grooves 1231S4a-2.

The 4-1 th seating groove 1231S4a-1 may be located in the center of the fourth prism outer surface 1231S4. And a coupling magnet may be positioned in the 4-1 seating groove 1231S4a-1. In other words, the coupling magnet may be seated in the fourth-first seating groove 1231S4a-1 of the fourth prism outer surface 1231S4. In addition, a coupling member (not shown) may be disposed in the 4-1 seating groove 1231S4a-1. Accordingly, the 4-1 seating groove 1231S4a-1 and the coupling magnet can be easily coupled through the coupling member. That is, the mover and the coupling magnet may be coupled.

In addition, the 4-2 th seating groove 1231S4a-2 may be located adjacent to the 4-1 th seating groove 1231S4a-1, and as described above, there may be a plurality of it. In an embodiment, the 4-2 seating groove 1231S4a-2 may be spaced apart from each other in the second direction (Y-axis direction) with the 4-1 seating groove 1231S4a-1 interposed therebetween. Also, the plurality of 4-2 seating grooves 1231S4a-2 may overlap in the second direction (Y-axis direction).

In an embodiment, the plurality of 4-2 seating grooves 1231S4a-2 may have the same lengths h1 and h2 in the second direction (Y-axis direction). Accordingly, the mover can be accurately performed without tilting to one side based on the Y-axis tilt or the second direction (Y-axis direction). In an embodiment, the OIS function may be accurately performed.

In addition, the length h3 of the 4-1 seating groove 1231S4a-1 in the second direction (Y-axis direction) is the length h3 of the 4-2 seating groove 1231S4a-2 in the second direction (Y-axis direction). may be different from (h1, h2). In an embodiment, the length h3 of the 4-1th seating groove 1231S4a-1 in the second direction (Y-axis direction) is the 4-2th seating groove 1231S4a-2 in the second direction (Y-axis direction) may be smaller than the length (h1, h2). With this configuration, the reliability of the camera actuator can be improved by improving the support force of the rotating plate with respect to the mover while the Y-axis tilt by the protrusion is performed.

In addition, the 4-1 seating groove 1231S4a-1 and the 4-2 seating groove 1231S4a-2 may be disposed to be spaced apart by a predetermined separation distance d1 and d2 in the second direction (Y-axis direction). . The predetermined separation distances d1 and d2 in the second direction (Y-axis direction) between the 4-1 th seating groove 1231S4a-1 and the 4-2 th seating groove 1231S4a-2 may be the same. According to this configuration, even when the Y-axis tilt is made, the force applied to the rotation plate can be uniformly distributed through each protrusion. Accordingly, the reliability of the camera actuator may be improved.

A protrusion of the rotation plate 1241 may be positioned in the 4-2 th seating groove 1231S4a-2. In an embodiment, the protrusion of the rotation plate 1241 may be located in the 4-2 th seating groove 1231S4a - 2 and contact the prism holder. In other words, the protrusion may contact the outer surface 1231S4 of the fourth prism. Accordingly, the protrusion can easily perform the X-axis tilt within the 4-2th seating groove 1231S4a-2.

In addition, the length in the first direction (X-axis direction) of the 4-1 seating groove 1231S4a-1 may be different from the length in the first direction (X-axis direction) of the 4-2 seating groove 1231S4a-2. can By this configuration, it is possible to improve the coupling force between the rotation plate 1241 and the prism holder 1231 through the coupling magnet 1243 while securing sufficient space for the coupling magnet to be seated.

7A is a perspective view of the rotating part according to the embodiment, FIG. 7B is a perspective view of the rotating part in a different direction from FIG. 7A, and FIG. 7C is a cross-sectional view of the rotating part taken along line AA' in FIG. 7A.

7A to 7C , the rotation plate 1241 according to the embodiment includes a base BS, a first surface 1241a of the base BS, and a second surface 1241b opposite to the first surface 1241a. ) may be included. That is, the first surface 1241a may be spaced apart from the second surface 1241b in the third direction (Z-axis direction), and may be opposite to each other or outer surfaces facing each other in the rotation plate 1241 .

First, the base BS may include a first surface 1241a and a second surface 1241b opposite to the first surface 1241a. That is, the first surface 1241a may be spaced apart from the second surface 1241b in the third direction (Z-axis direction), and may be outer surfaces facing or facing each other within the rotation plate 1241 . The rotation plate 1241 may include a protrusion PR1 extending to one side on the first surface 1241a. According to an embodiment, the protrusion PR1 may protrude toward the mover from the first surface 1241a. In addition, a plurality of protrusions PR1 may include a first protrusion PR1a and a second protrusion PR1b.

The first protrusion PR1a and the second protrusion PR1b may be positioned side by side in the second direction (Y-axis direction). In other words, the first protrusion PR1a and the second protrusion PR1b may overlap in the second direction (the Y-axis direction).

Specifically, the first surface 1241a may include a first outer surface M1 , a second outer surface M2 , a third outer surface M3 , and a fourth outer surface M4 . The first outer surface M1 and the second outer surface M2 may face each other, and the third outer surface M3 and the fourth outer surface M4 may face each other. In addition, a third outer surface M3 and a fourth outer surface M4 may be positioned between the first outer surface M1 and the second outer surface M2 . And the first outer surface M1 and the second outer surface M2 are perpendicular to the first direction (X-axis direction), but the third outer surface M3 and the fourth outer surface M4 are in the first direction X axial direction).

In this case, the protrusion PR1 may be positioned on the second virtual line VL1 . Here, the second virtual line LV2 is a line that bisects the third outer surface M3 and the fourth outer surface M4 . Accordingly, the rotation plate 1241 may easily perform Y-axis tilt through the protrusion PR1 . In addition, since the rotation plate 1241 performs Y-axis tilt based on the second virtual line VL2 , a rotational force may be uniformly applied to the rotation plate 1241 . Accordingly, the X-axis tilt can be precisely performed and the reliability of the device can be improved.

Also, the first protrusion PR1a and the second protrusion PR1b may be symmetrically disposed with respect to the first virtual line VL1 . Alternatively, the first protrusion PR1a and the second protrusion PR1b may be symmetrically positioned with respect to the first central point C1 . With this configuration, the support force supported by the protrusion PR1 may be equally applied to the upper side and the lower side with respect to the first virtual line VL1 when the Y-axis is tilted. Accordingly, the reliability of the rotating plate can be improved. Here, the first virtual line VL1 is a line that bisects the first outer surface M1 and the second outer surface M2 . In addition, the first central point C1 may be an 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 according to the shape of the rotation plate 1241 .

The second surface 1241b may include a fifth outer surface M1', a sixth outer surface M2', a seventh outer surface M3', and an eighth outer surface M4'. The fifth outer surface M1' and the sixth outer surface M2' may face each other, and the seventh outer surface M3' and the eighth outer surface M4' may face each other. In addition, a seventh outer surface M3' and an eighth outer surface M4' may be positioned between the fifth outer surface M1' and the sixth outer surface M2'. And the fifth outer surface (M1') and the sixth outer surface (M2') are perpendicular to the first direction (X-axis direction), but the seventh outer surface (M3') and the eighth outer surface (M4') It may be parallel to one direction (X-axis direction).

Also, in the embodiment, the first protrusion PR1a and the second protrusion PR1b may be bisected by an imaginary line extending in the first direction (X-axis direction).

Also, the first protrusion PR1a and the second protrusion PR1b may have a curvature, for example, a hemispherical shape. In addition, the first protrusion PR1a and the second protrusion PR1b may contact the mover at a point most spaced apart from the first surface 1241a of the base BS.

A coupling magnet 1243 and a yoke 1242 may be positioned between the first protrusion PR1a and the second protrusion PR1b. That is, the first protrusion PR1a and the second protrusion PR1b may be spaced apart from the coupling magnet 1243 and the yoke 1242 in the second direction.

In addition, since the rotation plate 1241 performs the X-axis tilt or the first axis tilt based on the third virtual line VL1 ′, a rotational force may be uniformly applied to the rotation plate 1241 . Accordingly, the X-axis tilt can be precisely performed and the reliability of the device can be improved.

Also, the yoke 1242 may be positioned on the third virtual line VL1 ′. Also, the yoke 1242 may be symmetrically disposed on the third virtual line VL1 ′ and the fourth virtual line VL2 ′. Alternatively, the yoke 1242 may be positioned symmetrically with respect to the second central point C1 ′. According to this configuration, the support force supported by the yoke 1242 when tilting the X-axis may be equally applied to the upper and lower sides of the rotation plate with respect to the third virtual line VL1 ′. Accordingly, the reliability of the rotating plate can be improved. Here, the third virtual line LV1' is a line that bisects the fifth outer surface M1' and the sixth outer surface M2'. The fourth imaginary line LV2' is a line that bisects the seventh outer surface M3' and the eighth outer surface M4'. In addition, the second central point C1' may be an 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 according to the shape of the rotation plate 1241 .

The rotation plate 1241 may include a yoke groove 1241h on the inside. The yoke groove 1241h may be a receiving groove. A yoke 1242 may be positioned in the yoke groove 1241h. The yoke groove 1241h may be located on the second surface 1241b. The inner surface of the yoke groove 1241h may correspond to the outer surface of the yoke 1242 . For example, both the inner surface of the yoke groove 1241h and the outer surface of the yoke 1242 may be curved. Accordingly, the outer surface of the yoke 1242 on the inner surface of the yoke groove 1241h may move along the first axis or the second axis (eg, based on the X axis). In other words, the yoke 1242 may perform an X-axis tilt on the inner surface of the yoke groove 1241h.

Also, the yoke 1242 may not overlap the protrusion PR1 in the third direction (Z-axis direction). However, the yoke 1242 may at least partially overlap the coupling magnet 1243 in the third direction (Z-axis direction). Accordingly, the coupling force between the yoke 1242 and the coupling magnet 1243 may increase.

In an embodiment, the yoke 1242 may overlap the coupling magnet 1243 in the third direction, and may be spaced apart from the protrusion PR1 in the second direction and may not overlap in the third direction. Due to this configuration, the coupling force between the yoke 1242 and the coupling magnet 1243 may not interfere with the tilting operation of the protrusion PR1 with respect to the second direction. Accordingly, the camera actuator may improve power efficiency and the like during tilt driving.

In addition, the length DR1 in the second direction (Y-axis direction) of the yoke 1242 is a separation distance DR2 in the second direction (Y-axis direction) between the first protrusion PR1a and the second protrusion PR1b. may be smaller than Accordingly, the yoke 1242 easily performs the X-axis tilt by taking the maximum length in the first direction (X-axis direction), and at the same time, the coupling force between the rotation plate 1241 and the mover 1230 and the rotation plate 1241 ) and the coupling force between the housing 1220 may be improved. Accordingly, even when the X-axis tilt and the Y-axis tilt are performed, the positions of the rotation plate 1241 and the mover 1230 within the housing 1220 can be easily maintained.

In addition, the yoke 1242 may be seated in the yoke groove 1241h formed on the second surface 1241b and may be adhered to any one of the housing and the rotation plate through an adhesive member. In an embodiment, the yoke 1242 may be coupled to the housing through an adhesive member. And the yoke 1242 may be coupled to the rotation plate 1241 located between the coupling magnet 1243 and the yoke 1242 through coupling force with the coupling magnet 1243 . Due to this configuration, when the X-axis is tilted, only the rotation plate 1241 is rotated, so the surface in contact with the rotation plate 1241 and the yoke 1242 becomes the reference plane of rotation, which is the opposite side of the contacting surface with the mover. The distance in the third direction may be close. Accordingly, since the rotation surface and the mover are adjacent to each other, the efficiency of energy consumed during X-axis tilt may be improved.

8A is a perspective view of a second camera actuator according to an embodiment in which the shield can and the substrate are removed, FIG. 8B is a cross-sectional view taken along line BB′ in FIG. 8A, and FIG. 8C is a cross-sectional view taken along CC′ in FIG. 8A.

8A to 8C , the first coil 1252a is located on the first housing side 1221 , and the first magnet 1251a is located on the first prism outer surface 1231S1 of the prism holder 1231 . can Accordingly, the first coil 1252a and the first magnet 1251a may be positioned to face each other. The first magnet 1251a may at least partially overlap the first coil 1252a in the second direction (Y-axis direction).

In addition, the second coil 1252b may be positioned on the second housing side 1222 , and the second magnet 1251b may be positioned on the second prism outer surface 1231S2 of the prism holder 1231 . Accordingly, the second coil 1252b and the second magnet 1251b may be positioned to face each other. The second magnet 1251b may at least partially overlap the second coil 1252b in the second direction (Y-axis direction).

In addition, the first coil 1251a and the second coil 1252b overlap in the second direction (Y-axis direction), and the first magnet 1251a and the second magnet 1251b are disposed in the second direction (Y-axis direction). can be nested. With this configuration, the electromagnetic force applied to the outer surface of the prism holder (the first prism outer surface and the second prism outer surface) is located on the parallel axis in the second direction (Y-axis direction), so that the X-axis tilt is accurate and precise. can be carried out

Also, the yoke 1242 may be in contact with the first housing groove 1224a or the yoke seating groove 1224ah in the first housing groove 1224a. Accordingly, when performing X-axis tilt, the yoke 1242 may be the reference axis (or rotation axis) of the tilt. Accordingly, the rotation plate 1241 and the warrior 1230 may move left and right.

An adhesive member AE may be disposed in the yoke seating groove 1224ah. Accordingly, the coupling force between the housing 1220 and the yoke 1242 may be improved.

In addition, the minimum separation distance in the third direction (Z-axis direction) between the protrusions PR1a and PR1b and the yoke 1242 may be reduced by the yoke groove 12241h. Accordingly, even if the protrusions PR1a and PR1b and the yoke 1242 perform tilting based on different axes, the scale difference of the change angle during tilting may be reduced. Thereby, the camera actuator can precisely control the tilt in two axes (eg, the first axis and the second axis).

In addition, the first housing groove 1224a may further include a yoke seating groove 1224ah in which the yoke 1242 is seated, and the inner surface of the yoke seating groove 1224ah corresponds to the outer surface of the yoke 1242 . It may be curved. In addition, in an embodiment, the inner surface of the yoke seating groove 1224ah may have a specific planar radius of curvature equal to the curvature radius of the outer surface of the yoke 1242 .

Also, as described above, the first Hall sensor 1253a may be positioned outside for electrical connection and coupling with the substrate unit 1254 . However, it is not limited to these positions.

Also, the third coil 1251c may be positioned on the third housing side 1223 , and the third magnet 1252c may be positioned on the third prism outer surface 1231S3 of the prism holder 1231 . The third coil 1251c and the third magnet 1252c may at least partially overlap in the first direction (X-axis direction). Accordingly, the strength of the electromagnetic force between the third coil 1251c and the third magnet 1252c may be easily controlled.

The rotation plate 1241 may be positioned on the fourth prism outer surface 1231S4 of the prism holder 1231 as described above. The rotation plate 1241 may be seated in the fourth seating groove 1231S4a of the outer surface 1231S4 of the fourth prism. As described above, the fourth seating groove 1231S4a is located at the center in the second direction (Y-axis direction) to the left and right of the 4-1 seating groove 1231S4a-1 and the 4-1 seating groove 1231S4a-1. It may include a 4-2th seating groove 1231S4a-2 located on the side.

A coupling magnet 1243 is disposed in the 4-1 seating groove 1231S4a-1 to provide coupling force by magnetic force with the rotation plate 1241 (particularly, the yoke 1242).

In addition, the first protrusion PR1a and the second protrusion PR1b may be seated in the 4-2 th seating groove 1231S4a - 2 . Accordingly, the first protrusion PR1a and the second protrusion PR1b may contact the fourth seating groove 1231S4a. In particular, the first protrusion PR1a and the second protrusion PR1b may be in contact with the fourth prism outer surface 1231S4 in the 4-2 seating groove 1231S4a-2. In addition, a lubricating member is additionally disposed in the 4-2 seating groove 1231S4a-2, so that the first protrusion PR1a and the second protrusion PR1b can easily tilt.

In addition, the fourth housing side may include an inner surface 1224 - 1 and an outer surface 1224 - 2 . A first housing groove 1224a may be positioned on the inner surface 1224-1 of the fourth housing side, and a yoke seating groove 1224ah may be positioned in the first housing groove 1224a.

The yoke 1242 may be seated in the yoke seating groove 1224ah, and the first housing plate 1241 may be seated in the first housing groove 1224a. The yoke seating groove 1224ah and the first housing groove 1224a may have a structure opened from the upper surface of the fourth housing side to a partial region of the lower portion. For example, the yoke seating groove 1224ah and the first housing groove 1224a may be opened to the lower center of the fourth housing side. Accordingly, as described above, the yoke 1242 may be positioned at the center of the rotation plate 1241 in the first direction to be adjacent to the center of gravity of the mover 1230 according to the tilt driving. Accordingly, power consumption provided to the driving coil or the like for tilting may be reduced and power efficiency of the actuator may be improved.

In addition, the yoke 1242 is seated in the yoke groove 1241h formed on the second surface 1241b and the yoke seating groove 1224ah of the first housing groove 1224a on the inner surface 1224-1 of the fourth housing side. can do.

In addition, the yoke 1242 may have a first seating surface 1242a and a second seating surface 1242b facing each other.

The second seating surface 1242b may be coupled to the yoke seating groove 1224ah through the adhesive member AE. Accordingly, the first seating surface 1241b may operate as a rotation axis of the X-axis tilt. Due to this configuration, when the X-axis is tilted, only the rotation plate 1241 is rotated, so the surface in contact with the rotation plate 1241 and the yoke 1242 becomes the reference plane of rotation, which is the opposite side of the contacting surface with the mover. The distance in the third direction may be close. Accordingly, since the rotation surface and the mover are adjacent to each other, the efficiency of energy consumed during X-axis tilt may be improved.

Also, the length l1 of the yoke 1242 in the first direction may be smaller than the length l2 of the coupling magnet 1243 in the first direction. Accordingly, the magnetic force by the yoke 1242 may be centrally located in the first direction in the housing, so that the driving force may be balanced according to the position of the mover when the Y-axis is tilted.

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

Referring to FIG. 9 , as described above, the driving unit 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor unit 1253 , and a substrate unit 1254 .

In addition, as described above, the driving magnet 1251 may include a first magnet 1251a, a second magnet 1251b, and a third magnet 1251c that provide driving force by electromagnetic force. The first magnet 1251a , the second magnet 1251b , and the third magnet 1251c may be located on the outer surface of the prism holder 1231 , respectively.

Also, the driving coil 1252 may include a plurality of coils. In an embodiment, the driving coil 1252 may include a first coil 1252a , a second coil 1252b , and a third coil 1252c .

The first coil 1252a may be positioned to face the first magnet 1251a. Accordingly, the first coil 1252a may be positioned in the first housing hole 1221a of the first housing side 1221 as described above. Also, the second coil 1252b may be positioned to face the second magnet 1251b. Accordingly, the second coil 1252b may be located in the second housing hole 1222a of the second housing side 1222 as described above.

The second camera actuator according to the embodiment rotates the mover 1230 in the first axis (X-axis direction) or the second axis (Y-axis direction) by electromagnetic force between the driving magnet 1251 and the driving coil 1252 by controlling the rotation. When implementing OIS, it is possible to provide the best optical characteristics by minimizing the occurrence of a decent or tilt phenomenon.

In addition, according to the embodiment, through the rotation plate 1241 of the rotation unit 1240 disposed between the housing 1220 and the mover 1230, by implementing OIS, the size limitation of the actuator is eliminated, and an ultra-slim, ultra-small camera actuator and the same It is possible to provide a camera module including.

The substrate portion 1254 may include a first substrate side 1254a , a second substrate side 1254b , and a third substrate side 1254c .

The first substrate side portion 1254a and the second substrate side portion 1254b may be disposed to face each other. And the third substrate side 1254c may be positioned between the first substrate side 1254a and the second substrate side 1254b.

Also, the first substrate side 1254a may be positioned between the first housing side and the shield can, and the second substrate side 1254b may be positioned between the second housing side and the shield can. In addition, the third substrate side portion 1254c may be positioned between the third housing side and the shield can, and may be a bottom surface of the substrate portion 1254 .

The first substrate side 1254a may be coupled to the first coil 1252a and electrically connected thereto. In addition, the first substrate side portion 1254a may be coupled to the first Hall sensor 1253a and electrically connected thereto.

The second substrate side 1254b may engage and electrically connect with the second coil 1252b. It should also be understood that the second substrate side 1254b may engage and electrically connect with the first Hall sensor.

The third substrate side 1254c may be coupled to and electrically connected to the third coil 1252c. In addition, the third substrate side portion 1254c may be coupled to and electrically connected to the second Hall sensor 1253b.

10A is a perspective view of a second camera actuator according to the embodiment, FIG. 10B is a cross-sectional view taken along DD′ in FIG. 10A, and FIG. 10C is an exemplary view of movement of the second camera actuator shown in FIG. 10B.

10A to 10C , Y-axis tilt may be performed. That is, the OIS may be implemented by rotating in the first direction (X-axis direction).

In an embodiment, the third magnet 1251c disposed under the prism holder 1231 forms an electromagnetic force with the third coil 1252c to rotate the plate 1241 and the mover 1230 in the first direction (X-axis direction). ) can be tilted or rotated.

Specifically, the housing and the mover 1230 may be coupled to each other by the coupling magnet 1243 in the rotation plate 1241 . In addition, the first protrusion PR1a and the second protrusion PR1b may be spaced apart from each other in the second direction (Y-axis direction) to support the mover 1230 . In addition, the rotation plate 1241 may rotate or tilt the first protrusion PR protruding toward the housing about a reference axis (or rotation axis). That is, the rotation plate 1241 may perform Y-axis tilt with respect to the first protrusion PR as a reference axis.

For example, the mover 1230 is moved by the first electromagnetic force F1A, F1B between the third magnet 1251c disposed in the third seating groove and the third coil unit 1252c disposed on the side of the third substrate. The OIS may be implemented while rotating (X1->X1a) at a first angle θ1 in the axial direction. The first angle θ1 may be ±1° to 3°. However, the present invention is not limited thereto.

11A is a perspective view of a second camera actuator according to an embodiment, FIG. 11B is a cross-sectional view taken along line EE′ in FIG. 11A , and FIG. 11C is an exemplary view of movement of the second camera actuator shown in FIG. 11B .

11A to 11C , OIS may be implemented while the mover 1230 tilts or rotates (or tilts the X-axis) in the Y-axis direction.

In an embodiment, the first magnet 1251a and the second magnet 1251b disposed on the prism holder 1231 form an electromagnetic force with the first coil 1252a and the second coil 1252b, respectively, in the second direction ( The rotation plate 1241 and the mover 1230 may be tilted or rotated in the Y-axis direction).

Specifically, the housing and the mover 1230 may be coupled to each other by the coupling magnet 1243 in the rotation plate 1241 . And as described above, the yoke 1242 may support the rotation plate 1241 and the mover 1230 . Also, the yoke 1242 may be in contact with the housing 1220 and may be coupled to the housing 1220 through an adhesive member.

The rotation plate 1241 may rotate or tilt the yoke 1242 in the second direction with respect to a reference axis (or rotation axis) (X-axis tilt).

For example, the second electromagnetic force F2A between the first and second magnets 1251a and 1251b disposed in the first seating groove and the first and second coil parts 1252a and 1252b disposed on the side of the first and second substrates; F2B), while rotating the mover 1230 at a second angle θ2 in the Y-axis direction (Y1->Y1a), the OIS may be implemented. The second angle θ2 may be ±1° to 3°. However, the present invention is not limited thereto.

As such, the second actuator according to the embodiment moves the mover 1230 in the first direction (X-axis direction) or in the second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the prism holder and the driving coil disposed in the housing. By controlling the rotation, it is possible to minimize the occurrence of a decent or tilt phenomenon and provide the best optical characteristics when implementing OIS. In addition, as described above, 'Y-axis tilt' corresponds to rotation or tilt in the first direction (X-axis direction), and 'X-axis tilt' corresponds to rotation or tilt in the second direction (Y-axis direction). do.

12A is a cross-sectional view of a second camera actuator according to another embodiment, and FIG. 12B is a cross-sectional view of a second camera actuator according to another embodiment.

12A, in the fourth seating groove 1231S4a, the 4-1 seating groove 1231S4a-1' is spaced apart from the fourth prism outer surface 1231S4 and may be located inside the prism holder 1231. . And a coupling magnet 1243 may be located in the 4-1 seating groove 1231S4a-1'.

Accordingly, the coupling magnet 1243 may be spaced apart from the prism outer surface 1231S4 by a predetermined distance dp in the third direction (Z-axis direction). Accordingly, the coupling force between the coupling magnet 1243 and the prism holder 1231 may be improved. Accordingly, the reliability of the camera actuator according to the embodiment may be improved.

Referring to FIG. 12B , in the fourth seating groove 1231S4a , the 4-1 seating groove 1231S4a-1 ′ is displaced from the 4-2 seating groove 1231S4a-2 in the third direction (Z-axis direction). can be

In addition, the length W1 of the 4-1 seating groove 1231S4a-1 in the third direction (Z-axis direction) is the length W1 in the third direction (Z-axis direction) of the 4-2 seating groove 1231S4a-2. (W2) may be different. For example, the 4-1th seating groove 1231S4a-1 has a length W1 in the third direction (Z-axis direction) in the third direction (Z-axis direction) of the 4-2nd seating groove 1231S4a-2. may be smaller than the length W2.

In other words, the top surface of the 4-1 th seating groove 1231S4a-1' and the top surface of the 4-2 th seating groove 1231S4a-2 may have a step difference. That is, the coupling magnet 1243 may be positioned more adjacent to the yoke 1242 in the third direction (Z-axis direction). By this configuration, the coupling force between the rotation plate 1241 and the prism holder 1231 in the camera actuator according to the embodiment may be further improved.

In addition, in an embodiment, a first magnet disposed between the rotating plate and the housing may be disposed in the rotating unit. In this case, the first magnet may be disposed at the same position as the above-described yoke. And the first magnet may have a shaft shape. In addition, the first magnet may include a first magnetic material, and the coupling magnet may include a second magnetic material. The first and second magnetic materials may have opposite poles to each other. For example, if the first magnetic material is an N pole, the second magnetic material may be an S pole, and if the first magnetic material is an S pole, the second magnetic material may have an N pole. Also, as a modification, a magnet may be disposed on the second surface of the rotation plate, and a yoke may be disposed in the 4-1 th seating groove 1231S4a-1. And even in the above-described various embodiments, the housing, the mover, and the rotating plate may be coupled by magnetic force.

13 is a cross-sectional view of a driving unit according to another exemplary embodiment.

Referring to FIG. 13 , an inner surface of the yoke seating groove 1224ah in the first housing groove 1224a may correspond to an outer surface of the yoke 1242 . That is, the inner surface of the yoke seating groove 1224ah may have a curved surface corresponding to the outer surface of the yoke 1242 . In addition, in an embodiment, the inner surface of the yoke seating groove 1224ah may have a specific planar radius of curvature equal to the curvature radius of the outer surface of the yoke 1242 .

Accordingly, the length ha in the second direction (Y-axis direction) of the yoke 1242 and the length hc in the second direction (Y-axis direction) of the yoke seating groove 1224ah may be the same. Accordingly, the yoke 1242 can easily tilt along the inner surface of the yoke seating groove 1224ah, and the support force of the housing can be improved. In addition, the contact area between the yoke 1242 and the yoke seating groove 1224ah may move based on the X-axis.

In addition, the length hk in the second direction (Y-axis direction) of the yoke groove 1241h is the length ha in the second direction (Y-axis direction) of the yoke 1242 and the second of the yoke seating groove 1224ah. It may be different from the length hc in the direction (Y-axis direction). In an embodiment, the length hk in the second direction (Y-axis direction) of the yoke groove 1241h is the length ha in the second direction (Y-axis direction) of the yoke 1242 and the yoke seating groove 1224ah. It may be greater than the length hc in the second direction (Y-axis direction).

In addition, an adhesive member AE' may be disposed in the yoke groove 1241h for coupling with the yoke 1242 . Due to the above-described length difference, the bonding force between the yoke 1242 and the rotation plate 1241 through the adhesive member AE' may be improved.

In addition, even if the length of the rotation plate 1241 is reduced in the third direction (Z-axis direction) by the yoke groove 1241h, the bonding force is improved through the adhesive member AE' so that the yoke 1242 is installed in the yoke seating groove. It is possible to improve the reliability of the rotating plate 1241 at 1224ah.

14 is a perspective view of an actuator for AF or Zoom according to another embodiment of the present invention, FIG. 15 is a perspective view in which some components are omitted from the actuator according to the embodiment shown in FIG. 14, and FIG. 16 is shown in FIG. An exploded perspective view in which some components are omitted from the actuator according to the embodiment, FIG. 17A is a perspective view of the first lens assembly in the actuator according to the embodiment shown in FIG. 16 , and FIG. 17B is the first lens assembly shown in FIG. 17A It is a perspective view with some components removed.

14 is a perspective view of an actuator for AF or Zoom according to another embodiment of the present invention, FIG. 15 is a perspective view in which some components are omitted from the actuator according to the embodiment shown in FIG. 14, and FIG. 16 is shown in FIG. It is an exploded perspective view in which some components are omitted in the actuator according to the embodiment.

14 , the actuator 2100 according to the embodiment includes a base 2020, a circuit board 2040 disposed outside the base 2020, a driving unit 2142, and a third lens assembly 2130. can do.

15 is a perspective view in which the base 2020 and the circuit board 2040 are omitted from FIG. 14 , and referring to FIG. 15 , the actuator 2100 according to the embodiment includes a first guide part 2210 and a second guide part ( 2220 , a first lens assembly 2110 , a second lens assembly 2120 , a driving unit 2141 , and a driving unit 2142 may be included.

The driving unit 2141 and the driving unit 2142 may include a coil or a magnet.

For example, when the driving unit 2141 and the driving unit 2142 include a coil, the driving unit 2141 may include a first coil unit 2141b and a first yoke 2141a, and the driving unit 2142 is It may include a second coil unit 2142b and a second yoke 2142a.

Alternatively, the driving unit 2141 and the driving unit 2142 may include magnets.

Referring to FIG. 16 , the actuator 2100 according to the embodiment includes a base 2020 , a first guide part 2210 , a second guide part 2220 , a first lens assembly 2110 , and a second lens assembly 2120 . ) and a third lens assembly 2130 .

For example, the actuator 2100 according to the embodiment includes a base 2020, a first guide part 2210 disposed on one side of the base 2020, and a second guide part disposed on the other side of the base 2020. 2220, a first lens assembly 2110 corresponding to the first guide part 2210, a second lens assembly 2120 corresponding to the second guide part 2220, and a first guide part 2210 and a first ball 2117 (see FIG. 17A ) disposed between the first lens assembly 2110 and a second ball (not shown) disposed between the second guide part 2220 and the second lens assembly 2120 . may include.

In addition, the embodiment may include the third lens assembly 2130 disposed in front of the first lens assembly 2110 in the optical axis direction.

15 and 16 , in the embodiment, a first guide part 2210 disposed adjacent to a first sidewall of the base 2020 and a second guide disposed adjacent to a second sidewall of the base 2020 A portion 2220 may be included.

The first guide part 2210 may be disposed between the first lens assembly 2110 and the first sidewall of the base 2020 .

The second guide part 2220 may be disposed between the second lens assembly 2120 and the second sidewall of the base 2020 . The first sidewall and the second sidewall of the base 2020 may be disposed to face each other.

According to the embodiment, as the lens assembly is driven in a state in which the first guide part 2210 and the second guide part 2220, which are precisely numerically controlled in the base 2020, are coupled, frictional torque is reduced to reduce frictional resistance. By doing so, there are technical effects such as improvement of driving force during zooming, reduction of power consumption and improvement of control characteristics.

Accordingly, according to the embodiment, when zooming, the friction torque is minimized while preventing the occurrence of a phenomenon in which the lens decent or the lens tilt, and the central axis of the lens group and the image sensor are not aligned, thereby preventing the occurrence of image quality. However, there is a complex technical effect that can significantly improve the resolution.

In particular, according to the present embodiment, the first guide part 2210 and the second guide part 2220 that are separately formed and assembled from the base 2020 are separately adopted without arranging the guide rail on the base itself, so the injection direction Accordingly, there is a special technical effect that can prevent the occurrence of gradients.

In an embodiment, the length of the first guide part 2210 and the second guide part 2220 injected along the X-axis may be shorter than that of the base 2020, and in this case, the first guide part 2210 and the second guide part 2210 . When the rail is disposed on the part 2220, it is possible to minimize the generation of gradient during injection, and there is a technical effect that the possibility that the straight line of the rail is distorted is low.

More specifically, FIG. 17A is a perspective view of the first lens assembly 2110 in the actuator according to the embodiment shown in FIG. 16 , and FIG. 17B is the first lens assembly 2110 shown in FIG. 17A with some components removed. is a perspective view.

Referring briefly to FIG. 16 , the embodiment includes a first lens assembly 2110 moving along the first guide part 2210 and a second lens assembly 2120 moving along the second guide part 2220 . can do.

Referring back to FIG. 17A , the first lens assembly 2110 may include a first lens barrel 2112a in which the first lens 2113 is disposed and a first drive unit housing 2112b in which the driving unit 2116 is disposed. have. The first lens barrel 2112a and the first driving unit housing 2112b may be a first housing, and the first housing may have a barrel or barrel shape. The driving unit 2116 may be a driving magnet, but is not limited thereto, and a coil may be disposed in some cases.

Also, the second lens assembly 2120 may include a second lens barrel (not shown) in which a second lens (not shown) is disposed and a second driving unit housing (not shown) in which a driving unit (not shown) is disposed. The second lens barrel (not shown) and the second driving unit housing (not shown) may be a second housing, and the second housing may have a barrel or barrel shape. The driving unit may be a driving magnet, but is not limited thereto, and a coil may be disposed in some cases.

The driving unit 2116 may correspond to the two first rails 2212 .

Embodiments may be driven using single or multiple balls. For example, in the embodiment, between the first ball 2117 and the second guide 2220 and the second lens assembly 2120 disposed between the first guide part 2210 and the first lens assembly 2110 . It may include a second ball (not shown) disposed.

For example, in the embodiment, the first ball 2117 is a single or a plurality of 1-1 balls 2117a disposed on an upper side of the first driving unit housing 2112b and a lower side of the first driving unit housing 2112b. It may include a single or a plurality of first 1-2 balls (2117b).

In the embodiment, the 1-1 ball 2117a of the first balls 2117 moves along the 1-1 rail 2212a that is one of the first rails 2212, and the first of the first balls 2117 The -2 ball 2117b may move along the second rail 2212b, which is the other one of the first rails 2212 .

According to the embodiment, the first guide part includes the 1-1 rail and the 1-2 rail, so that the 1-1 rail and the 1-2 rail guide the first lens assembly 2110 to the first lens assembly When the 2110 moves, there is a technical effect of increasing the accuracy of the alignment between the second lens assembly 2110 and the optical axis.

Referring to FIG. 17B , in the embodiment, the first lens assembly 2110 may include a first assembly groove 2112b1 in which the first ball 2117 is disposed. The second lens assembly 2120 may include a second assembly groove (not shown) in which the second ball is disposed.

The first assembly groove 2112b1 of the first lens assembly 2110 may be plural. In this case, a distance between two first assembly grooves 2112b1 among the plurality of first assembly grooves 2112b1 based on the optical axis direction may be longer than a thickness of the first lens barrel 2112a.

In an embodiment, the first assembly groove 2112b1 of the first lens assembly 2110 may have a V shape. Also, the second assembly groove (not shown) of the second lens assembly 2120 may have a V shape. In addition to the V shape, the first assembly groove 2112b1 of the first lens assembly 2110 may have a U shape or a shape contacting the first ball 2117 at two or three points. The second assembly groove (not shown) of the second lens assembly 2120 may have a U-shape or a shape contacting the second ball at two or three points in addition to the V-shape.

16 and 17A , in the embodiment, the first guide part 2210 , the first ball 2117 , and the first assembly groove 2112b1 are arranged on an imaginary straight line from the first sidewall to the second sidewall. can be The first guide part 2210 , the first ball 2117 , and the first assembly groove 2112b1 may be disposed between the first sidewall and the second sidewall.

Next, FIG. 18 is a perspective view of the third lens assembly 2130 in the actuator according to the embodiment shown in FIG. 16 .

Referring to FIG. 18 , in the embodiment, the third lens assembly 2130 may include a third housing 2021 , a third barrel, and a third lens 2133 .

In the embodiment, the third lens assembly 2130 has a barrel recess 2021r on the upper end of the third barrel so that the thickness of the third barrel of the third lens assembly 2130 can be uniformly adjusted, and the amount of the injection product can be adjusted. In short, there is a complex technical effect that can increase the accuracy of numerical management.

Also, according to an embodiment, the third lens assembly 2130 may include a housing rib 2021a and a housing recess 2021b in the third housing 2021 .

In the embodiment, the third lens assembly 2130 includes a housing recess 2021b in the third housing 2021 to reduce the amount of injection products to increase the accuracy of numerical management and at the same time to provide a housing recess 2021b in the third housing 2021. 2021a), there is a complex technical effect that can secure strength.

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

As shown in FIG. 19 , the mobile terminal 1500 according to the embodiment may include a camera module 1000 , a flash module 1530 , and an auto-focus device 1510 provided on the rear side.

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

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

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

For example, the camera module 1000 may include a first camera module 1000 and a second camera module 1000, and OIS may be implemented together with an AF or zoom function by the first camera module 1000A. can

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

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

The auto-focusing device 1510 may include an auto-focusing function using a laser. The auto focus device 1510 may be mainly used in a condition in which the auto focus function using the image of the camera module 1000 is deteriorated, for example, close to 10 m or less or in a dark environment.

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

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

For example, FIG. 20 is an external view of a vehicle including the vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.

Referring to FIG. 20 , the vehicle 700 according to the embodiment may include wheels 13FL and 13FR that rotate by a power source and a predetermined sensor. The sensor may be the camera sensor 2000, but is not limited thereto.

The camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied. The vehicle 700 of the embodiment may acquire image information through a camera sensor 2000 that captures a front image or a surrounding image, and determines a lane unidentified situation using the image information and generates a virtual lane when unidentified 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 obtain image information by analyzing an object included in the front image.

For example, when an object such as a median, curb, or street tree corresponding to a lane, an adjacent vehicle, a driving obstacle, and an indirect road mark is captured in the image captured by the camera sensor 2000, the processor detects the object to be included in the video information. In this case, the processor may further supplement the image information by acquiring distance information from the object detected through the camera sensor 2000 .

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

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

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

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

In the above, the embodiment has been mainly described, but this is only an example and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are not exemplified above in the range that does not depart from the essential characteristics of the present embodiment. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (20)

housing;
a mover disposed within the housing;
a rotating part disposed between the housing and the mover; and
and a driving unit disposed in the housing and driving the mover;
The rotating part includes a base, a protrusion protruding from the first surface of the base, and a yoke disposed in a receiving groove formed on the second surface of the base,
A camera actuator comprising a coupling magnet disposed on the mover.
According to claim 1,
The mover is tilted along a first axis with respect to the yoke and tilted along a second axis with respect to the protrusion.
3. The method of claim 2,
The yoke is disposed overlapping the coupling magnet and the third axis,
and the third axis is perpendicular to the first axis and the second axis.
4. The method of claim 3,
The protrusion is a camera actuator that is spaced apart from the coupling magnet and the yoke and the first axis.
4. The method of claim 3,
The protrusion includes a first protrusion and a second protrusion disposed side by side along the first axis,
The first protrusion overlaps the second protrusion along the first axis.
6. The method of claim 5,
The yoke is disposed on a region between the first protrusion and the second protrusion.
7. The method of claim 6,
wherein said yoke has a length in said first axis less than a length in said first axis between said first projection and said second projection.
According to claim 1,
The housing includes a yoke seating groove in which the yoke is seated,
The yoke seating groove is a camera actuator that is opened from an upper surface of the housing to a lower partial area.
According to claim 1,
The yoke includes a first seating surface and a second seating surface facing each other,
The first seating surface is a camera actuator in contact with the mover.
10. The method of claim 9,
The camera actuator further comprising an adhesive member disposed on the second seating surface.
3. The method of claim 2,
The mover, a prism; and a prism holder on which the prism is seated,
The prism holder is a camera actuator comprising a first seating groove in which the coupling magnet is seated and a second seating groove in which the protrusion is seated.
12. The method of claim 11,
The first seating groove is a camera actuator positioned between adjacent second seating grooves.
12. The method of claim 11,
The first seating groove is a camera actuator disposed overlapping the second seating groove and the first axis.
3. The method of claim 2,
The yoke is a camera actuator in which at least a portion overlaps the protrusion and the second axis.
3. The method of claim 2,
The driving unit includes a driving magnet and a driving coil,
The driving magnet includes a first magnet, a second magnet, and a third magnet,
The driving coil includes a first coil, a second coil and a third coil,
The first magnet and the second magnet are disposed symmetrically about the first axis on the mover,
The first coil and the second coil are disposed symmetrically about the first axis between the housing and the mover,
The third magnet is disposed on the bottom surface of the mover,
The third coil is a camera actuator disposed on a bottom surface of the housing.
According to claim 1,
The yoke is a shaft-shaped camera actuator.
housing;
a mover disposed within the housing;
a rotating part disposed between the housing and the mover; and
and a driving unit disposed in the housing and driving the mover;
The rotating part includes a base, a protrusion protruding from the first surface of the base, and a first magnet disposed in a groove formed on the second surface of the base,
A camera actuator including a second magnet disposed on the mover.
18. The method of claim 17,
The first magnet and the second magnet have different polarities,
The first magnet is a camera actuator having a shaft shape.
housing;
a mover disposed within the housing;
a rotating part disposed between the housing and the mover; and
and a driving unit disposed in the housing and driving the mover;
The rotating part includes a base, a protrusion protruding from the first surface of the base, and a magnet disposed in a groove formed in the second surface of the base,
A camera actuator comprising a yoke disposed on the mover.
20. The method of claim 19,
The magnet is a shaft-shaped camera actuator.

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