KR20210132992A - Camera actuator and camera device comprising the same - Google Patents

Abstract

An embodiment of the present invention discloses a camera actuator that includes a housing; a mover on which an optical member is seated and disposed within the housing; a rotating plate disposed between the housing and the mover; and a driving part disposed on the housing and driving the mover. The rotating plate includes a base; a first protrusion part disposed on the upper surface and the lower surface of the base facing each other in a first direction; and a second protrusion part disposed on sides facing each other in the second direction from the base. The first direction and the second direction are perpendicular to a third direction. The third direction is a direction from the rotation plate toward the optical member.

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 an actuator in charge of tilting on two axes perpendicular to the optical axis.

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.

In addition, when the zoom function, the AF function, and the OIS function are all included in the camera device, there is a problem in that the magnet for OIS and the magnet for AF or zoom 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 on which the optical member is seated and disposed in the housing; a rotating plate disposed between the housing and the mover; and a driving unit disposed in the housing and driving the mover, wherein the rotating plate includes: a base; first protrusions disposed on upper and lower surfaces facing each other in a first direction from the base; and a second protrusion disposed on side surfaces of the base facing each other in a second direction, wherein the first direction and the second direction are perpendicular to a third direction, and the third direction is the rotation plate in the rotation plate. direction toward the optical element.

The mover may include a receiving groove for accommodating the rotation plate.

The first protrusion may include: a first base protrusion disposed on the base; and a first extension protrusion disposed on the first base protrusion, wherein the second protrusion includes: a second base protrusion disposed on the base; and a second extension protrusion disposed on the second base protrusion.

The accommodating groove includes: a first accommodating groove accommodating the base, the first base protrusion and the second base protrusion; and a second accommodating groove for accommodating the first extension protrusion.

A bottom surface of the first accommodating groove may be spaced apart from the base, the first base protrusion, and the second base protrusion in the third direction.

A side surface of the first receiving groove may at least partially overlap the base, the first base protrusion, and the second base protrusion in the first direction.

The second receiving groove may overlap the first base protrusion and the base in the third direction.

The second receiving groove may have a shape corresponding to that of the first extension protrusion.

A length of the second accommodating groove in the third direction may be smaller than a length of the first accommodating groove in the third direction.

A diameter of the first base protrusion may be greater than a diameter of the first extension protrusion, and a diameter of the second base protrusion may be greater than a diameter of the second extension protrusion.

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 module shown in Figure 1,
Figure 2b is a plan view of the camera module 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 a perspective view of a second camera actuator according to the embodiment;
5 is an exploded perspective view of a second camera actuator according to the embodiment;
6A is a perspective view of a housing according to an embodiment;
Figure 6b is a side view of the housing seen in KD in Figure 6a,
Figure 6c is a side view of the fifth housing side,
6D is a side view of the first housing side and the second housing side;
6E is a top view of a housing according to an embodiment;
6f is a bottom view of the housing according to the embodiment;
6G is a perspective view of a fourth housing side;
6h is a view showing the inner surface of the fourth housing side,
7A is a perspective view of a mover according to an embodiment;
7B is a perspective view of a holder according to an embodiment;
7c to 7d are side views of a mover according to the embodiment;
7e is a bottom view of the mover according to the embodiment;
7f is a perspective view of a plate cover according to an embodiment;
7G is a side view of a plate cover according to an embodiment;
7h is a top view of a plate cover according to an embodiment;
7I is another side view of a plate cover according to an embodiment;
8A is a perspective view of a rotating plate according to an embodiment;
8B is a front view of the rotating plate according to the embodiment;
8c is a side view of a rotating plate according to an embodiment;
8D is a top view of the rotating plate according to the embodiment;
9 is a view showing a driving unit according to an embodiment;
10 is a perspective view of a second camera actuator according to an embodiment in which a shield can and a substrate are removed;
11A is a cross-sectional view taken along line BB' in FIG. 10;
11b is a cross-sectional view taken along CC' in FIG. 10;
11c is a cross-sectional view taken along DD' in FIG. 10;
12 is an exemplary view of the movement of the second camera actuator shown in FIG. 11A;
13 is an exemplary view of the movement of the second camera actuator shown in FIG. 11c;
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 said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present 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 lenses disposed in a predetermined barrel (not shown). Fixed focal length les may also 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 that perform a zooming (or zoom) function and an AF function. and may include a second camera actuator 1200 performing an OIS function.

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 . .

In addition. 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 to 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 a perspective view of a second camera actuator according to the embodiment, and FIG. 5 is an exploded perspective view of the second camera actuator according to the embodiment.

4 and 5 , the second camera actuator 1200 according to the embodiment includes a shield can 1210 , a housing 1220 , a mover 1230 , a rotation plate 1240 , and a driving unit 1250 . . In addition, it should be understood that each component is not assembled along a line (eg, a dashed-dotted line) shown in this exploded perspective view.

First, the mover 1230 includes a holder 1231 , and a plate cover 1233 that covers the optical member 1232 and the rotation plate 1240 seated on the holder 1231 , and is coupled to the holder 1231 . The rotation plate 1240 is positioned between the holder 1231 and the plate cover 1233 , and may be coupled to the mover 1230 and the housing 1220 . In addition, the rotation plate 1240 may perform a tilt with respect to two axes. In an embodiment, the rotation plate 1240 may rotate (corresponding to the second axis tilt) in the first direction (X-axis direction). Also, the rotation plate 1240 may rotate in the second direction (the Y-axis direction) (corresponding to the first axis tilt). In addition, the driving unit 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor unit 1253 , a coupling unit 1254 , and a substrate unit 1255 . Hereinafter, each component will be described.

The shield can 1210 may be positioned in an area (eg, the outermost) of the second camera actuator 1200 to surround the rotation plate 1240 and the driving unit 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 rotation plate 1240 or the driving unit 1250 may be reduced.

The housing 1220 may be located inside the shield can 1210 . Also, the housing 1220 may be located inside the substrate unit 1255 . The housing 1220 may be fastened to the shield can 1210 by fitting or matching with each other.

The housing 1220 may include a plurality of housing sides. In an embodiment, the housing 1220 may include a first housing side to a fifth housing side. A detailed description thereof will be given later.

The housing 1220 may include a receiving portion 1226 that is a cavity between the plurality of housing sides.

The mover 1230 includes a holder 1231 and an optical member 1232 seated on the holder 1231 .

The holder 1231 may be seated in the receiving part 1226 of the housing 1220 . The holder 1231 may include a first holder outer surface to a fourth holder outer surface corresponding to the first housing side, the second housing side, the third housing side, and the fourth housing side, respectively. A detailed description thereof will be given later.

The optical member 1232 may be seated on the holder 1231 . To this end, the holder 1231 may have a seating surface, and the seating surface may be formed by the receiving part. The optical member 1232 may include a reflector disposed therein. However, the present invention is not limited thereto. In addition, the optical member 1232 may reflect light reflected from the outside (eg, an object) into the camera module. In other words, the optical member 1232 may improve the spatial limitation 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 optical member 1232 may be formed of a prism or a mirror including at least one lens.

The rotation plate 1240 may be disposed in the mover 1230 . In addition, the rotation plate 1240 may be surrounded by the plate cover 1233 and the holder 1231 of the mover 1230 , and may be coupled to the mover 1230 . In addition, the rotation plate 1240 may be coupled to the housing 1220 through the second protrusion.

The rotating plate 1240 has a first protrusion protruding from the base toward the upper and lower portions (eg, the third housing side and the shield can) and a second protrusion that protrudes toward the housing (eg, the first housing side and the second housing side). It may include a protrusion. The mover 1230 may perform a first axis and a second axis tilt by the first protrusion and the second protrusion. A detailed description thereof will be given later.

The driving unit 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor unit 1253 , a coupling unit 1254 , and a substrate unit 1255 .

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 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 surface of the 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 rotation plate 1240 with respect to the housing 1220 by generating electromagnetic force with the third magnet 1251c.

Here, X-axis tilting means tilting with respect to the X-axis as a reference (or reference axis), and Y-axis tilting means tilting with respect to the Y-axis as a reference (or reference axis). In addition, the first direction is the X-axis direction in the drawing, and may be used interchangeably with the second axis direction, the second 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. Also, the third direction is a direction perpendicular to both the first direction and the second direction. Also, in the present invention, the first direction (X-axis direction) corresponds to the direction of the optical axis with respect to the light incident to the second camera actuator, and the second direction (Y-axis direction) and the third direction (Z-axis direction) are the optical axes It is a direction perpendicular to and may be tilted by the second camera actuator. This third direction may correspond to a direction from the rotation plate toward the optical member or the holder. And the bottom surface means one side in the first direction, the third housing side of the housing may be the bottom surface, the inner side may be a direction toward the center of the camera actuator, and the outer side may be the opposite direction. In this specification, it should be understood based on the above-described content. However, it should be understood that the optical axis may be changed to the Z axis in the first camera actuator to be described later.

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

Also, the third Hall sensor 1253c may be located inside the third coil 1252c. The third Hall sensor 1253c may detect a change in magnetic flux inside the third coil 1252c. Accordingly, position sensing between the third magnet 1251c and the third Hall sensor 1253c may be performed. The camera actuator according to the embodiment may control the Y-axis tilt through this.

The coupling part 1254 may include a first coupling member 1254a, a second coupling member 1254b, and a third coupling member 1254c.

Each of the first coupling member 1254a, the second coupling member 1254b, and the third coupling member 1254c may be positioned in a seating groove formed on the outer surface of the holder 1231 . In addition, the first coupling member 1254a and the second coupling member 1254b may be positioned to face each other. In addition, the third coupling member 1254c may be located on the bottom of the outer surface of the holder 1231 (eg, the third holder outer surface).

In addition, the first coupling member 1254a, the second coupling member 1254b and the third coupling member 1254c are each located between the first magnet 1251a to the third magnet 1251c and the holder 1231. can

The first coupling member 1254a, the second coupling member 1254b, and the third coupling member 1254c may be yokes. Accordingly, the first coupling member 1254a, the second coupling member 1254b, and the third coupling member 1254c are respectively a first magnet 1251a, a second magnet 1251b, and a third magnet 1251c and can be combined

In addition, the first coupling member 1254a, the second coupling member 1254b and the third coupling member 1254c are respectively disposed in the first seating groove, the second seating groove and the third seating groove of the holder 1231, , can be easily combined with the first seating groove, the second seating groove and the third seating groove through the adhesive member injected through the grooves formed in the first seating groove, the second seating groove and the third seating groove.

Accordingly, the first magnet 1251a, the second magnet 1251b and the third magnet 1251c are the holder ( 1254c) by the first coupling member 1254a, the second coupling member 1254b and the third coupling member 1254c. 1231) and can be easily combined.

The first magnet 1251a , the second magnet 1251b , and the third magnet 1251c may be located on the outer surface of the 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 surface of the holder 1231 . A detailed description thereof will be given later.

The substrate unit 1255 may be located below the driving unit 1250 . The substrate unit 1255 may be electrically connected to the driving coil 1252 and the Hall sensor unit 1253 . For example, the substrate unit 1255 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 1255 may be positioned between the shield can 1210 and the housing 1220 , and may be coupled to the shield can 1210 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 1255 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 flexible printed circuit board (RigidFlexible PCB). have. However, it is not limited to this type.

6A is a perspective view of a housing according to the embodiment, FIG. 6B is a side view of the housing as viewed KD in FIG. 6A , FIG. 6C is a side view of a fifth housing side, and FIG. 6D is a first housing side and a second housing side 6E is a top view of the housing according to the embodiment, FIG. 6F is a bottom view of the housing according to the embodiment, FIG. 6G is a perspective view of a fourth housing side, and FIG. 6H is a fourth housing side view It is a drawing showing the inner side.

6A-6I , the housing 1220 includes a first housing side 1221 , a second housing side 1222 , a third housing side 1223 , a fourth housing side 1224 , and a fifth housing side (1225).

The first housing side 1221 and the second housing side 1222 may be disposed to face each other. Also, the third housing side portion 1223 may be disposed on the bottom surface of the housing 1220 . The fourth housing side 1224 and the fifth housing side 1225 may be disposed to face each other, and 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 , the fourth housing side 1224 , and the fifth housing side 1225 .

The first housing side 1221 may include a first housing hole 1221a. A first coil to be described later may be positioned in the first housing hole 1221a.

The first housing side 1221 may include a first coupling protrusion (not shown). The first housing side portion 1221 may be easily coupled to the substrate portion through the first coupling protrusion (not shown).

Also, the first housing side portion 1221 may include a first seating protrusion 1221c. The first seating protrusion 1221c may be located at an upper portion or a lower portion of the first housing side portion 1221 . The first seating protrusion 1221c may easily support the substrate part. Accordingly, the coupling force between the side of the first housing and the substrate may be improved.

In addition, the first housing side portion 1221 and the second housing side portion 1222 may include a second protrusion receiving groove G2 formed to be convex inwardly or toward the third direction on the side surface. The second protrusion accommodating groove G2 includes a 2-1 protrusion accommodating groove G2a and a 2-2 protrusion accommodating groove G2b, which will be described below based on this. First, the first housing side portion 1221 may include a 2-1 protrusion receiving groove G2a formed inwardly on the side surface.

The 2-1 protrusion receiving groove G2a may be disposed on a surface of the first housing side portion 1221 in contact with the fourth housing side portion 1224 . The 2-1 protrusion receiving groove G2a may be positioned to correspond to the 1-1 protrusion receiving groove G1a of the fourth housing side portion 1224 to be described later.

A second protrusion to be described later may be seated between the 2-1 protrusion accommodating groove G2a and the 1-1 protrusion accommodating groove G1a. Accordingly, the rotation plate, the housing 1220, and the mover 1230 may be coupled to each other.

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

The first housing hole 1221a and the second housing hole 1222a may be positioned to face each other. For example, the first housing hole 1221a and the second housing hole 1222a may be symmetrically disposed with respect to the first direction (X-axis direction) or the third direction (Z-axis direction). In addition, the first coil and the second coil may be electrically connected to and coupled to a substrate disposed outside the housing 1220 through the first housing hole 1221a and the second housing hole 1222a. The first coil and the second coil may be electrically connected to the substrate so that a 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.

The second housing side 1222 may include a second coupling protrusion (not shown). The second housing side part 1222 may be easily coupled to the substrate part through the second coupling protrusion (not shown).

In addition, the second housing side portion 1222 may include a second seating protrusion 1222c. The second seating protrusion 1222c may be positioned above or below the second housing side 1222 . The second seating protrusion 1222c may easily support the substrate part. Accordingly, the coupling force between the second housing side and the substrate portion may be improved.

In addition, the second housing side portion 1222 may include a 2-2 protrusion receiving groove G2b formed inwardly on the side surface. The 2-2 protrusion receiving groove G2b may be disposed on a surface of the second housing side portion 1222 in contact with the fourth housing side portion 1224 . The 2-2 protrusion accommodating groove G2b may be positioned to correspond to the 1-2 protrusion accommodating groove G1b of the fourth housing side part 1224 .

A second protrusion to be described later may be seated between the 2-2 protrusion accommodating groove G2b and the 1-2 protrusion accommodating groove G1b. Accordingly, the rotation plate, the housing 1220, and the mover 1230 may be coupled to each other.

Also, the third housing side portion 1223 may include a third housing hole 1223a. A third coil to be described later may be positioned in the third housing hole 1223a. The third coil may be coupled to the substrate unit. In an embodiment, the third coil may be electrically connected to the substrate unit 1255 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 third housing side 1223 may include a third coupling protrusion (not shown). The third housing side part 1223 may be easily coupled to the substrate part through the third coupling protrusion (not shown).

The fourth housing side 1224 may abut the first housing side 1221 , the second housing side 1222 , and the third housing side 1223 . In particular, the fourth housing side 1224 may be disposed on the third housing side 1223 . The fourth housing side 1224 may have a lower surface in contact with an upper surface of the third housing side 1223 , such that the fourth housing side 1224 may be supported by the third housing side 1223 . The fourth housing side 1224 may not be in the path of the light.

The fourth housing side 1224 may include a first housing base 1224a , a first housing extension 1224b , and a second housing extension 1224c .

The first housing extension 1224b and the second housing extension 1224c may extend in the third direction (Z-axis direction) from the first housing base 1224a. In particular, the first housing extension 1224b and the second housing extension 1224c may extend from the first housing base 1224a toward the fifth housing side 1225 .

The first housing base 1224a may be positioned to face the fifth housing side 1225 . In addition, the first housing base 1224a may face and be spaced apart from a plate cover to be described later by a predetermined distance.

The first housing extension 1224b and the second housing extension 1224c are positioned at respective ends in the second direction (Y-axis direction) from the first housing base 1224a, and in the third direction (Z-axis direction). can be extended

The first housing extension 1224b and the second housing extension 1224c may contact the first housing side portion 1221 and the second housing side portion 122 , respectively.

In addition, the fourth housing side portion 1224 may include a first protrusion receiving groove (G1) on the inner surface. The first protrusion accommodating groove G1 may include a 1-1 protrusion accommodating groove G1a and a 1-2 protrusion accommodating groove G1b.

The 1-1 protrusion receiving groove G1a may be positioned on a surface where the first housing extension 1224b and the first housing side portion 1221 contact each other. In addition, the 1-2 protrusion receiving groove G1b may be located on a surface where the second housing extension portion 1224c and the second housing side portion 1222 contact each other.

A second protrusion, which will be described later, may be located in the 1-1 protrusion receiving groove G1a and the 1-2 protrusion receiving groove G1b. In addition, the 1-1 protrusion accommodating groove G1a and the 1-2 protrusion accommodating groove G1b may be arranged side by side in the second direction (Y-axis direction). That is, the 1-1 protrusion accommodating groove G1a and the 1-2 protrusion accommodating groove G1b may overlap in the second direction (Y-axis direction). Accordingly, the second protrusion seated in the 1-1 protrusion accommodating groove G1a and the 1-2 protrusion accommodating groove G1b may rotate based on the second direction (Y-axis direction). That is, uniaxial tilt may be achieved by the second protrusion.

The 1-1 protrusion receiving groove G1a may be positioned to correspond to the 2-1 protrusion receiving groove G2a as described above. And, the 1-2-th protrusion receiving groove (G1b) may be positioned to correspond to the 2-2 protrusion receiving groove (G2b) as described above.

The fifth housing side 1225 may be disposed to face the fourth housing side 1224 . The fifth housing side 1225 may include an opening 1225a. Accordingly, light passing through or reflected from the optical member may move through the opening 1225a.

In addition, the fifth housing side 1225 may include a housing protrusion 1225b. The housing protrusion 1225b may protrude outward. The housing 1220 may be coupled to the first camera actuator disposed outside through the housing protrusion 1225b. Accordingly, the reliability of the camera module may be improved.

In addition, the fifth housing side portion 1225 may include a pattern portion (not shown) having a protrusion 1225b and a pattern around the housing protrusion 1225b. The pattern portion (not shown) may be positioned to be stepped inward than the housing protrusion 1225b. That is, the pattern portion (not shown) may be located inside the housing protrusion 1225b.

An adhesive member may be applied to the pattern portion (not shown). Accordingly, the contact area of the adhesive member with the fifth housing side portion 1225 on the pattern portion (not shown) may increase. Accordingly, the coupling force between the second actuator (or the housing 1220 ) and the first actuator may be increased.

Also, the housing 1220 may include a receiving portion 1226 formed inside by the first to fifth housing sides 1221 to 1225 . A mover 1230 and a rotation plate 1240 may be positioned in the receiving part 1226 .

7A is a perspective view of a mover according to the embodiment, FIG. 7B is a perspective view of a holder according to the embodiment, FIGS. 7C to 7D are side views of the mover according to the embodiment, and FIG. 7E is a bottom view of the mover according to the embodiment am.

7A to 7E, the mover 1230 according to the embodiment covers the holder 1231, the optical member 1232 and the rotation plate 1240 seated on the holder 1231, and is coupled to the holder 1231. It may include a plate cover 1233 that is.

First, the optical member 1232 may be seated on the holder 1231 . The optical member 1232 may be a prism or a mirror as described above, but is not limited thereto.

In addition, the holder 1231 may include a seating surface 1231k on which the optical member 1232 is mounted. The seating surface 1231k may be an inclined surface. In addition, the holder 1231 may include a chin portion SP at a lower portion. In the holder 1231 , the jaw part SP may prevent the optical member 1232 from moving. Through this, the light incident through the upper portion may pass through the optical member 1232 , pass through the above-described opening on the side of the fifth housing, and may move in the third direction (Z-axis direction).

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

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

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

In addition, the first holder outer surface 1231S1 may include a first seating groove 1231S1a. In addition, the second holder 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 coupling member and a first magnet to be described later may be disposed in the first seating groove 1231S1a, and a second coupling member and a second magnet 1251b may be disposed in the second seating recess 1231S2a. The first magnet and the second magnet may also be disposed symmetrically with respect to the first direction (X-axis direction). In addition, the first coupling member and the second coupling member may also be disposed symmetrically with respect to the first direction (X-axis direction).

Also, the first magnet and the second magnet may overlap in the second direction, and the first coupling member and the second coupling member may overlap in the second 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 applied to the first holder outer surface 1231S1 and the second holder outer surface 1231S2 on the same axis. can be provided on For example, a region (eg, a portion having the strongest electromagnetic force) applied on the first holder outer surface S1231S1 and a region applied on the second holder 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.

In addition, the first holder outer surface 1231S1 and the second holder outer surface 1231S2 may additionally include a groove (not shown). By reducing the weight of the holder 1231 through such a groove (not shown), it is possible to minimize energy consumption during single-axis tilt or double-axis tilt. That is, the intensity of the current applied to the first coil, the second coil, and the third coil may be minimized, and thus energy efficiency may be improved. Also, the aforementioned grooves (not shown) may be symmetrically disposed with respect to the first direction (X-axis direction). Accordingly, by preventing concentration on one side of the center of gravity of the holder 1231, the tilt can be performed with a uniform force.

The third holder outer surface 1231S3 is in contact with the first holder outer surface 1231S1 and the second holder outer surface 1231S2, and is located between the first holder outer surface 1231S1 and the second holder outer surface 1231S2. It may be an outer surface extending in a direction (Y-axis direction). Accordingly, the third holder outer surface 1231S3 may be positioned between the first holder outer surface 1231S1 and the second holder outer surface 1231S2 .

And the third holder outer surface (1231S3) may be a bottom surface of the holder (1231). The third holder outer surface 1231S3 may be positioned to face the third housing side portion 1223 . In addition, the third holder outer surface 1231S3 may be in contact with the third housing side portion 1223 .

In addition, the third holder 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 different width than that of the first seating groove 1231S1a or the second seating groove 1231S2a. For example, the third seating groove 1231S3a may have a larger width than the first seating groove 1231S1a or the second seating groove 1231S2a. With this configuration, the Y-axis tilt can be performed with current control similar to the X-axis tilt.

The third holder outer surface 1231S3 may further include a groove 1231S3b. By reducing the weight of the holder 1231 through the groove 1231S3b, it is possible to minimize energy consumption during single-axis tilt or double-axis tilt. That is, the intensity of the current applied to the first coil, the second coil, and the third coil may be minimized, and thus energy efficiency may be improved.

In addition, the plurality of grooves 1231S3b may be provided on the outer surface 1231S3 of the third holder, and if there are a plurality of grooves 1231S3b, they may be disposed symmetrically with respect to the first direction (X-axis direction).

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

The fourth holder outer surface 1231S4 may include a receiving groove PG.

A rotation plate may be seated in the receiving groove PG. That is, the receiving groove PG may accommodate the rotation plate.

In an embodiment, the accommodating groove PG may include a first accommodating groove PG1 and a second accommodating groove PG2 . The first accommodating groove PG1 may accommodate the base, the first base protrusion, and the second base protrusion of the rotation plate. In addition, the second receiving groove PG2 may accommodate the first extension protrusion.

The second accommodating groove PG2 may have a different length from the first accommodating groove PG1 in the third direction. Accordingly, the rotation plate in the first receiving groove PG1 may be maintained in the mover 1230 . In addition, both the accuracy and reliability of the camera actuator according to the embodiment may be improved.

The first accommodating groove PG1 may include a first accommodating region PG1a, a second accommodating region PG1b, and a third accommodating region PG1c on which the base is seated.

In an embodiment, the first protrusion may be seated in the first accommodating area PG1a and the second accommodating area PG1b. In addition, the base of the rotation plate may be seated in the third accommodation area PG1c.

The first accommodation area PG1a and the second accommodation area PG1b may be positioned above and below the third accommodation area PG1c. In addition, the first accommodation area PG1a and the second accommodation area PG1b may be positioned on a bisector of the third accommodation area PG1c in the second direction (Y-axis direction). In other words, the first accommodation area PG1a and the second accommodation area PG1b may be located in the center of the third accommodation area PG1c.

The second accommodating groove PG2 may be located adjacent to the first accommodating groove PG1 , and as described above, there may be a plurality of second accommodating grooves PG2 . The second accommodating groove PG2 may be positioned above and below the first accommodating area PG1a and the second accommodating area PG1b, respectively. In an embodiment, the second accommodating groove PG2 may include a 2-1 accommodating groove PG2a and a 2-2 accommodating groove PG2b.

The 2-1 th accommodating groove PG2a may be positioned above the first accommodating area PG1a. In addition, the 2-2 accommodating groove PG2b may be located below the second accommodating area PG1b.

The 2-1 th accommodating groove PG2a and the 2-2 th accommodating groove PG2b may be positioned to overlap in the first direction (X-axis direction). In addition, the 2-1 accommodating groove PG2a and the 2-2 accommodating groove PG2b may be positioned on the bisector of the third accommodating area PG1c in the second direction (Y-axis direction). Alternatively, the 2-1 accommodating groove PG2a and the 2-2 accommodating groove PG2b may be positioned to correspond to the center of the third accommodating area PG1c. Due to this configuration, when the first protrusion is tilted (eg, two-axis tilt), the force applied between the rotation plate and the mover 1230 may not be concentrated to one side. In other words, since the tilt of the mover 1230 is not biased to one side, the tilt accuracy may be improved. In addition, the force imbalance can be resolved, so that the reliability of the component can be improved.

In addition, the fourth holder outer surface 1231S4 may include a coupling groove 1231S4h. A coupling protrusion 1233p may be seated in the coupling groove 1231S4h. Accordingly, coupling between the holder 1231 and the plate cover 1233 may be made. In addition, the holder 1231 and the plate cover 1233 may surround the rotation plate.

The coupling groove 1231S4h may be spaced apart from the receiving groove PG. In addition, the coupling groove 1231S4h may be located at an edge of the fourth holder outer surface 1231S4. Accordingly, even if the biaxial tilt by the first and second protrusions located at the edges of the fourth holder outer surface 1231S4 is performed, the coupling force between the holder 1231 and the plate cover 1233 may be easily maintained.

In an embodiment, the third accommodating area PG1c may be centrally located on the outer surface 1231S4 of the fourth holder. In addition, the first accommodating area PG1a may be positioned above the third accommodating area PG1c. Also, the second accommodation area PG1b may be positioned below the third accommodation area PG1c.

And the 2-1 accommodating groove PG2a may be located above the first accommodating area PG1a. In other words, the first accommodating region PG1a may be positioned between the second-first accommodating groove PG2a and the third accommodating region PG1c.

In addition, the 2-2 accommodating groove PG2b may be located below the second accommodating area PG1b. In other words, the second accommodating area PG1b may be positioned between the 2-2 accommodating groove PG2b and the third accommodating area PG1c.

In an embodiment, the third accommodating region PG1c has a length W1 in the second direction in the second direction of the first accommodating region PG1a or the second accommodating region PG1b or the second accommodating groove PG2. It may be greater than (W2, W3). With this configuration, when the holder 1231 and the plate cover 1233 are tilted, the rotational force can be efficiently transmitted to the rotational plate through the base of the rotational plate. Accordingly, the resistance force is minimized, and the efficiency of the driving unit may be improved.

In addition, the length W2 of the first accommodating region PG1a or the second accommodating region PG1b in the second direction may be greater than the length W3 of the second accommodating groove PG2 in the second direction. Accordingly, it is possible to easily prevent the rotation plate in the receiving groove PG from being separated from the holder 1231 and the plate cover 1233 .

7F is a perspective view of a plate cover according to the embodiment, FIG. 7G is a side view of the plate cover according to the embodiment, FIG. 7H is a top view of the plate cover according to the embodiment, and FIG. 7I is a plate cover according to the embodiment Another side view of

7F to 7I , the plate cover 1233 may be coupled to the holder 1231 as described above.

The plate cover 1233 may include a plate groove 1233g. In addition, the plate cover 1233 may surround the rotation plate through the plate groove 1233g.

In an embodiment, the plate groove 1233g may include a first plate groove 1233g1 and a second plate groove 1233g2 . The first plate groove 1233g1 may accommodate the base, the first base protrusion, and the second base protrusion of the rotation plate. In addition, the second plate groove 1233g2 may accommodate the first extension protrusion.

The second plate groove 1233g2 may have a different length from the first plate groove 1233g1 in the third direction. Accordingly, the rotation plate in the first plate groove 1233g1 may be maintained in the mover 1230 . In addition, both the accuracy and reliability of the camera actuator according to the embodiment may be improved.

The first plate groove 1233g1 may include a first plate area 1233g1a, a second plate area 1233g1b, and a third plate area 1233g1c.

The first protrusion may be seated on the first plate area 1233g1a and the second plate area 1233g1b. In addition, the base of the rotation plate may be seated in the third plate area 1233g1c.

The first plate area 1233g1a and the second plate area 1233g1b may be positioned above and below the third plate area 1233g1c. In addition, the first plate region 1233g1a and the second plate region 1233g1b may be positioned on a bisector of the third plate region 1233g1c in the second direction (Y-axis direction). In other words, the first plate area 1233g1a and the second plate area 1233g1b may be located in the center of the third plate area 1233g1c.

The second plate grooves 1233g2 may be located adjacent to the first plate grooves 1233g1 , and as described above, there may be a plurality of second plate grooves 1233g2 . The second plate groove 1233g2 may be positioned above and below the first plate area 1233g1a and the second plate area 1233g1b, respectively. In an embodiment, the second plate groove 1233g2 may include a 2-1 plate groove 1233g2a and a 2-2 plate groove 1233g2b.

The 2-1 plate groove 1233g2a may be located on the first plate area 1233g1a. In addition, the 2-2 plate groove 1233g2b may be located below the second plate area 1233g1b.

The 2-1 plate groove 1233g2a and the 2-2 plate groove 1233g2b may be positioned to overlap in the first direction (X-axis direction). In addition, the 2-1 plate groove 1233g2a and the 2-2 plate groove 1233g2b may be positioned on the bisector of the third plate region 1233g1c in the second direction (Y-axis direction). Alternatively, the 2-1 plate groove 1233g2a and the 2-2 plate groove 1233g2b may be positioned to correspond to the center of the third plate region 1233g1c. Due to this configuration, the force applied between the rotation plate and the mover 1230 may not be concentrated to one side during tilting (eg, biaxial tilt) by the first protrusion. In other words, since the tilt of the mover 1230 is not biased to one side, the tilt accuracy may be improved. In addition, the force imbalance can be resolved, so that the reliability of the component can be improved.

In addition, the plate cover 1233 may include a coupling protrusion 1233p located on the inner surface. The coupling protrusion 1233p may be inserted into the coupling groove 1231S4h. Accordingly, coupling between the holder 1231 and the plate cover 1233 may be made. In addition, the holder 1231 and the plate cover 1233 may surround the rotation plate.

The coupling protrusion 1233p may be spaced apart from the plate groove 1233g. In addition, the coupling groove 1231S4h may be located at an edge of the plate cover 1233 . Accordingly, even if the biaxial tilt is performed by the first protrusion and the second protrusion located at the edge of the plate cover 1233 , the coupling force between the holder 1231 and the plate cover 1233 may be easily maintained.

In an embodiment, the third plate area 1233g1c may be located in the center of the plate cover 1233 . In addition, the first plate area 1233g1a may be positioned above the third plate area 1233g1c. In addition, the second plate area 1233g1b may be located below the third plate area 1233g1c.

In addition, the 2-1 plate groove 1233g2a may be positioned above the first plate area 1233g1a. In other words, the first plate region 1233g1a may be positioned between the 2-1 plate groove 1233g2a and the third plate region 1233g1c.

In addition, the 2-2 plate groove 1233g2b may be located below the second plate area 1233g1b. In other words, the second plate region 1233g1b may be positioned between the 2-2 second plate groove 1233g2b and the third plate region 1233g1c.

The first plate groove 1233g1 may correspond to the first accommodation groove PG1 , and the second plate groove 1233g2 may correspond to the second accommodation groove PG2 . Accordingly, in an embodiment, the length of the third plate region 1233g1c in the second direction is greater than the length in the second direction of the first plate region 1233g1a or the second plate region 1233g1b or the second plate groove 1233g2. can With this configuration, when the holder 1231 and the plate cover 1233 are tilted, the rotational force can be efficiently transmitted to the rotational plate through the base of the rotational plate. Accordingly, the resistance force is minimized, and the efficiency of the driving unit may be improved.

In addition, the length of the first plate region 1233g1a or the second plate region 1233g1b in the second direction may be greater than the length of the second plate groove 1233g2 in the second direction. Accordingly, it is possible to easily prevent the rotation plate in the plate groove 1233g from being separated from the holder 1231 and the plate cover 1233 .

Fig. 8A is a perspective view of a rotating plate according to an embodiment, Fig. 8B is a perspective view of a rotating plate according to the embodiment, Fig. 8C is a cross-sectional view of the rotating plate taken along line AA' in Fig. 8A, and Fig. 8D is a perspective view of the rotating plate according to the embodiment It is a top view of the rotating plate.

The rotation plate 1240 according to the embodiment includes a base BS and a first protrusion PR1 disposed on an upper surface and a lower surface facing the base BS in the first direction (X-axis direction) of the base BS. It may include a second protrusion PR2 disposed on side surfaces facing each other in the second direction (Y-axis direction). Depending on the structure, the surfaces on which the first protrusion and the second protrusion are formed may be opposite to each other.

In the embodiment, the base BS may have a rectangular shape on a plane. The length of the base BS in the second direction (Y-axis direction) may be greater than the length in the first direction (X-axis direction). However, the present invention is not limited thereto and the base BS may have various shapes.

As described above, the first protrusion PR1 may be respectively positioned on an upper surface and a lower surface that are symmetrically disposed in the first direction (X-axis direction) from the base BS. For example, the first protrusion PR1 may include a 1-1 protrusion on the upper surface of the base BS and a 1-2 protrusion on the lower surface of the base BS. However, hereinafter, it will be described as the first protrusion.

The first protrusion PR1 may include a first base protrusion PRB1 disposed on the base BS (upper or lower).

In addition, the first protrusion PR1 may include a first extension protrusion PRP1 disposed between the first base protrusion PRB1 and the base BS. The first extension protrusion PRP1 may be disposed on the first base protrusion PRb1.

The first base protrusion PRB1 and the first extension protrusion PRP1 may be circular on the plane YZ. Accordingly, the rotation plate 1240 may easily perform tilt (second axis tilt) based on the first direction (X-axis direction).

The first protrusion PR1 may be positioned on the bisector VL1 in the third direction (Z-axis direction) of the base BS. Also, the origins C1 and C2 of the first protrusion PR1 may be located on the bisector VL1 in the third direction (Z-axis direction) of the base BS. Accordingly, the force applied to the base BS during tilting is uniform, so that the reliability of the device may be improved.

As described above, the second protrusion PR2 may be respectively positioned on two side surfaces symmetrically disposed in the second direction (Y-axis direction) from the base BS. For example, the second protrusion PR2 may include a 2-1 protrusion on one side of the base BS and a 2-2 protrusion on the other side of the base BS. However, hereinafter, it will be described as the second protrusion.

The second protrusion PR2 may include a second base protrusion PRB2 disposed on (on a side surface) of the base BS.

In addition, the second protrusion PR2 may include a second extension protrusion PRP2 disposed between the second base protrusion PRB2 and the base BS. The second extension protrusion PRP2 may be disposed on the second base protrusion PRb2.

The second base protrusion PRB2 and the second extension protrusion PRP2 may be circular on the plane XZ. Accordingly, the rotation plate 1240 may easily perform tilt (first axis tilt) based on the second direction (Y-axis direction).

The second protrusion PR2 may be positioned on the bisector of the base BS in the first direction (X-axis direction). Also, the origin of the second protrusion PR2 may be located on a bisector of the second protrusion PR2 in the third direction (Z-axis direction) of the base BS. Accordingly, the force applied to the base BS during tilting is uniform, so that the reliability of the device may be improved.

Also, as described above, the number of first protrusions PR1 may be plural and may overlap in the first direction (X-axis direction). In addition, the second protrusion PR2 may be plural as described above, and may overlap in the second direction (Y-axis direction). Accordingly, the camera actuator according to the embodiment may perform accurate tilt.

And the length W4 in the second direction (Y-axis direction) of the base BS is the length r1, r2 in the second direction (Y-axis direction) of the first base protrusion PRB1 and the first extension protrusion PRP1 ) can be greater than As described above, since the first base protrusion PRB1 and the first extension protrusion PRP1 are circular in plan view, the lengths r1 and r2 in the second direction (Y-axis direction) may be diameters, and will be described based on this. . With this configuration, the rotational force can be efficiently transmitted to the rotational plate through the base of the rotational plate. Accordingly, the resistance force is minimized, and the efficiency of the driving unit may be improved.

In addition, the first protrusion PR1 may contact the lubricating member applied in the second receiving groove PG2 and the second plate groove 1223g2 . The second protrusion PR2 may be in contact with the lubricating member applied in the first protrusion accommodating groove G1 and the second protrusion accommodating groove G2 .

Also, the diameter r1 of the first base protrusion PRB1 according to the embodiment may be greater than the diameter r2 of the first extension protrusion PRP1. Accordingly, the rotation plate 1240 may not be separated from the holder and the plate cover in the first direction (X-axis direction) by the first base protrusion PRB1.

And the length h1 in the first direction (X-axis direction) of the base BS is the length h2, h3 in the first direction (X-axis direction) of the second base protrusion PRB2 and the second extension protrusion PRP2 ) can be greater than As described above, since the second base protrusion PRB2 and the second extension protrusion PRP2 are circular in plan view, the lengths h2 and h3 in the first direction (X-axis direction) may be diameters, and will be described based on this. . And by the above-described configuration, the rotational force can be efficiently transmitted to the rotational plate through the base of the rotational plate. Accordingly, the resistance force is minimized, and the efficiency of the driving unit may be improved.

Also, the diameter h2 of the second base protrusion PRB2 according to the embodiment may be greater than the diameter h3 of the second extension protrusion PRP2. Accordingly, the rotation plate 1240 may not be separated from the holder and the plate cover in the second direction (Y-axis direction) by the second base protrusion PRB2 .

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 , a coupling unit 1254 , and a substrate unit 1255 .

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 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 controls rotation of the mover 1230 in the first direction (X-axis direction) or the second direction (Y-axis direction) by electromagnetic force between the driving magnet 1251 and the driving coil 1252 . 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 1240 of the rotation plate disposed between the housing 1220 and the mover 1230, by implementing OIS, the size limitation of the actuator is solved, and an ultra-slim, ultra-small camera actuator and a camera actuator including the same A camera module may be provided.

The coupling part 1254 may include a first coupling member 1254a, a second coupling member 1254b, and a third coupling member 1254c.

In addition, the first coupling member 1254a, the second coupling member 1254b and the third coupling member 1254c are each located between the first magnet 1251a to the third magnet 1251c and the holder 1231. can

The first coupling member 1254a, the second coupling member 1254b, and the third coupling member 1254c may be yokes. Accordingly, the first coupling member 1254a, the second coupling member 1254b, and the third coupling member 1254c are respectively a first magnet 1251a, a second magnet 1251b, and a third magnet 1251c and can be combined

In addition, the first coupling member 1254a, the second coupling member 1254b, and the third coupling member 1254c are respectively disposed in the first seating groove, the second seating groove, and the third seating groove, and the first seating groove , can be easily combined with the first seating groove, the second seating groove, and the third seating groove through the adhesive member injected through the groove formed in the second seating groove and the third seating groove.

The substrate portion 1255 may include a first substrate side portion 1255a , a second substrate side portion 1255b , and a third substrate side portion 1255c .

The first substrate side portion 1255a and the second substrate side portion 1255b may be disposed to face each other. In addition, the third substrate side portion 1255c may be positioned between the first substrate side portion 1255a and the second substrate side portion 1255b.

Also, the first substrate side 1255a may be positioned between the first housing side and the shield can, and the second substrate side 1255b may be positioned between the second housing side and the shield can. In addition, the third substrate side part 1255c may be positioned between the third housing side part and the shield can, and may be a bottom surface of the substrate part 1255 .

The first substrate side 1255a may be coupled to the first coil 1252a and electrically connected thereto. In addition, the first substrate side portion 1255a may be coupled to and electrically connected to the first Hall sensor 1253a.

The second substrate side 1255b may be coupled to and electrically connected to the second coil 1252b. Also, it should be understood that the second substrate side 1255b may be electrically coupled to and electrically connected to the second Hall sensor 1253b.

Also, the first substrate side portion 1255a and the second substrate side portion 1255b may extend in a third direction (Z-axis direction). Accordingly, the first substrate side portion 1255a and the second substrate side portion 1255b may have a region extending in the third direction (Z-axis direction) than the fifth housing side portion.

In addition, the third substrate side portion 1255c may be coupled to and electrically connected to the third coil 1252c. In addition, the third substrate side portion 1255c may be coupled to and electrically connected to the third Hall sensor 1253c.

10 is a perspective view of a second camera actuator according to an embodiment in which the shield can and the substrate are removed, FIG. 11A is a cross-sectional view taken along line BB' in FIG. 10, and FIG. 11B is a cross-sectional view taken along line CC' in FIG. 11C is a cross-sectional view taken along line DD′ in FIG. 10 .

10 and 11A to 11C , the first coil 1252a is located on the first housing side 1221 , and the first magnet 1251a and the first coupling member 1254a are the first of the holder 1231 . 1 It may be located on the outer surface of the holder 1231S1.

In addition, 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). Also, the first coupling member 1254a may at least partially overlap the first coil 1252a in the second direction (Y-axis direction).

In addition, the second coil 1252b is located on the second housing side 1222 , and the second magnet 1251b and the second coupling member 1254b are located on the second holder outer surface 1231S2 of the holder 1231 . can 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 second coupling member 1254b may at least partially overlap the second coil 1252b in the second direction (Y-axis direction).

In addition, the first coil 1252a and the second coil 1252b are overlapped 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 holder (the first holder outer surface and the second holder 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 performed.

Also, as described above, the first Hall sensor 1253a and the second Hall sensor 1253b may be positioned outside for electrical connection and coupling with the substrate unit 1255 . However, it is not limited to these positions.

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

As described above, the rotation plate 1240 may be positioned between the fourth holder outer surface 1231S4 of the holder 1231 and the plate cover 1233 (or the fourth housing side 1224 ).

The fourth holder outer surface 1231S4 has a first accommodating groove PG1 centrally located in the second direction (Y-axis direction), and a second accommodating groove PG2 positioned at the upper and lower sides of the first accommodating groove PG1. can be placed. That is, the rotation plate 1240 may be seated in the receiving groove PG of the fourth holder outer surface 1231S4. That is, the rotation plate 1240 may be positioned in the first accommodating groove PG1 and the second accommodating groove PG2 .

Also, the rotation plate 1240 may be positioned in the first plate groove 1233g1 and the second plate groove 1233g2 . However, a portion of the second protrusion PR2 may be located in the above-described first protrusion receiving groove and second protrusion receiving groove.

Also, the base BS may be positioned in the third accommodation area PG1c and the third plate area 1233g1c. In addition, in the first protrusion PR1 , the first base protrusion PRB1 may be positioned in the first receiving area PG1a and the first plate area 1233g1a. Also, in the first protrusion PR1 , the first base protrusion PRB1 may be positioned in the second accommodation area PRG1b and the second plate area 1233g1b.

In an embodiment, the bottom surface LS of the first receiving groove PG1 is spaced apart from the base BS, the first base projection PRB1, and the second base projection PRB2 in the third direction (Z-axis direction). can Also, a bottom surface of the first plate groove 1233g1 may be spaced apart from the base BS, the first base projection PRB1, and the second base projection PRB2 in the third direction (Z-axis direction). Due to this configuration, since a space is secured for the rotation plate 1240 to perform the two-axis tilt between the holder 1231 and the plate cover 1233, the two-axis tilt can be accurately performed.

In an embodiment, the side surface SS of the first receiving groove PG1 at least partially overlaps the base BS, the first base projection PRB1 and the second base projection PRB2 in the first direction (X-axis direction). can be In addition, the side surface SS of the first plate groove 1233g1 overlaps at least partially in the first direction (X-axis direction) with the base BS, the first base projection PRB1, and the second base projection PRB2. can be Due to this configuration, the rotation plate 1240 may not be separated in the first direction (X-axis direction) or the second direction (Y-axis direction) between the holder 1231 and the plate cover 1233 .

Also, the second receiving groove PG2 may overlap the first base protrusion PRB1 and the base BS in the third direction (Z-axis direction). Also, the second plate groove 1233g2 may overlap the first base protrusion PRB1 and the base B S in the third direction (Z-axis direction).

In addition, the shape of the second receiving groove PG2 may correspond to that of the first extension protrusion PRP1. Accordingly, the second receiving groove PG2 may have a planar shape like the first extension protrusion PRP1.

Also, the first protrusion accommodating groove G1 and the second protrusion accommodating groove G2 may have the same shape as the second extension protrusion PRP2. Accordingly, the first protrusion accommodating groove G1 and the second protrusion accommodating groove G2 may be circular in plan view like the second extension protrusion PRP2.

The length of the second accommodating groove PG2 in the third direction (Z-axis direction) may be smaller than the length of the first accommodating groove PG1 in the third direction (Z-axis direction).

In addition, at least a portion of the second receiving groove PG2 may be spaced apart from the first extension protrusion PRP1 by a predetermined distance. Accordingly, a space in which the holder 1231 and the plate cover 1233 can be tilted (first axis tilt) based on the second direction (Y-axis direction) can be secured.

In addition, the first protrusion accommodating groove G1 and the second protrusion accommodating groove G2 may be spaced apart from the second extension protrusion PRP2 by a predetermined distance. Accordingly, a space in which the holder 1231 and the plate cover 1233 can be tilted (second axis tilt) with respect to the first direction (X-axis direction) can be secured.

That is, separation spaces gg1 , gg2 , gg3 , and gg4 may exist between the base BS and the holder 1231 or between the base BS and the plate cover 1233 . Accordingly, during the biaxial tilt, since the base BS of the rotation plate 1240 does not contact the holder 1231 or the plate cover 1233 , the biaxial tilt can be easily performed.

FIG. 12 is an exemplary diagram of movement of the second camera actuator illustrated in FIG. 11A , and FIG. 13 is an exemplary diagram of movement of the second camera actuator illustrated in FIG. 11C .

12 , 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 holder 1231 may form an electromagnetic force with the third coil 1252c to tilt or rotate the mover 1230 in the first direction (X-axis direction). have. That is, the holder 1231 and the plate cover 1233 coupled to the holder 1231 may move in the first direction (X-axis direction) by the above-described electromagnetic force.

In addition, the rotation plate 1240 may rotate or tilt the second protrusion PR2 (eg, the second extension protrusion) extending in the second direction about the reference axis (or rotation axis). That is, the rotation plate 1240 may perform Y-axis tilt (or first-axis tilt) with respect to the second protrusion PR2 as a reference axis.

For example, the mover 1230 is moved along the X-axis by the first electromagnetic forces F1A and F1B between the third magnet 1251c disposed in the third seating groove and the third coil 1252c disposed on the side of the third substrate. The OIS may be implemented while rotating (X1->X1a or X1->X1b) at a first angle θ1 in the direction. The first angle θ1 may be ±1° to ±3°. However, the present invention is not limited thereto.

Referring to FIG. 13 , an X-axis tilt may be performed. That is, the OIS may be implemented by rotating in the second direction (Y-axis direction).

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 in the holder 1231 form an electromagnetic force with the first coil 1252a and the second coil 1252b, respectively, in the second direction (Y axial direction) by tilting or rotating the rotation plate 1240 and the mover 1230 . That is, the holder 1231 and the plate cover 1233 coupled to the holder 1231 may rotate or move in the second direction (Y-axis direction) by the above-described electromagnetic force.

The rotation plate 1240 may rotate or tilt (X-axis tilt) the first protrusion PR1 (eg, the first extension protrusion) in the second direction with respect to the reference axis (or rotation axis).

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 or Y1->Y1b), 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 camera actuator according to the embodiment moves the rotation plate 1240 and the mover 1230 in the first direction (X-axis direction) or the second direction by electromagnetic force between the driving magnet in the holder and the driving coil disposed in the housing. By controlling the rotation in the (Y-axis direction), it is possible to minimize the occurrence of decent or tilt and provide the best optical properties 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.

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 driver 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 other than a V-shape or a shape that contacts the second ball at two or three points.

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 of the embodiment may include a camera module 1000 , a flash module 1530 , and an autofocus device 1510 provided on the rear side.

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

The camera module 1000 processes an image frame of a still image or a moving image obtained by an image sensor in a 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 a vehicle driving assistance device to which the camera module 1000 according to an 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.

Although the embodiment has been described above, it 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 a 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 (10)

housing;
a mover on which the optical member is seated and disposed in the housing;
a rotating plate disposed between the housing and the mover; and
and a driving unit disposed on the housing and driving the mover;
The rotating plate is
Base;
first protrusions disposed on upper and lower surfaces facing each other in a first direction from the base; and
Includes; second protrusions disposed on the sides facing each other in the second direction from the base;
The first direction and the second direction are perpendicular to the third direction,
The third direction is a direction from the rotation plate toward the optical member.
According to claim 1,
The mover is a camera actuator comprising a; receiving groove for accommodating the rotation plate.
3. The method of claim 2,
The first protrusion,
a first base protrusion disposed on the base; and
and a first extension protrusion disposed on the first base protrusion.
The second protrusion,
a second base protrusion disposed on the base; and
A camera actuator comprising a; a second extension protrusion disposed on the second base protrusion.
4. The method of claim 3,
The receiving groove is
a first receiving groove accommodating the base, the first base protrusion and the second base protrusion; and
A camera actuator comprising a; second receiving groove for accommodating the first extension protrusion.
5. The method of claim 4,
A bottom surface of the first receiving groove is a camera actuator that is spaced apart from the base, the first base protrusion, and the second base protrusion in the third direction.
5. The method of claim 4,
A side surface of the first receiving groove is at least partially overlapped with the base, the first base protrusion, and the second base protrusion in the first direction.
5. The method of claim 4,
The second receiving groove is a camera actuator overlapping the first base projection and the base in the third direction.
5. The method of claim 4,
The second receiving groove corresponds to the shape of the first extension protrusion of the camera actuator.
5. The method of claim 4,
The length of the second receiving groove in the third direction is smaller than a length of the first receiving groove in the third direction of the camera actuator.
4. The method of claim 3,
The diameter of the first base protrusion is greater than the diameter of the first extension protrusion,
A diameter of the second base protrusion is greater than a diameter of the second extension protrusion.

Images