Camera actuator and camera module including same

Abstract

An embodiment of the present invention discloses a camera actuator including: a housing; a mover disposed within the housing; a tilting guide portion disposed between the housing and the mover; and a driving portion disposed within the housing for driving the mover; a first magnetic body disposed on the mover; and a second magnetic body disposed opposite the first magnetic body; wherein the tilting guide portion is pressed against the mover by the repulsive force between the first magnetic body and the second magnetic body.

Description

[Technical field]

[0001] The present invention relates to a camera actuator and a camera module including the same. [Background technology]

[0002] A camera is a device that takes pictures or videos of a subject and is installed in portable devices, drones, vehicles, etc. To improve image quality, a camera module can have an image stabilization (IS) function that corrects or prevents image shake caused by the user's movement, an auto focusing (AF) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens, and a zooming function that increases or decreases the magnification of a distant subject through a zoom lens.

[0003] On the other hand, the higher the pixel count of an image sensor, the higher the resolution and the smaller the pixel size, but the smaller the pixel, the less light it can receive over the same period of time. Therefore, the higher the pixel count of a camera, the more severe the image blur caused by camera shake that occurs when the shutter speed is slow in a dark environment. One of the most well-known image stabilization (IS) technologies is optical image stabilizer (OIS), which corrects movement by changing the path of light.

[0004] According to a 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 is tilted or moved. When the lens or the camera module including the lens and the image sensor is tilted or moved for OIS, additional space for tilting or moving needs to be secured around the lens or the camera module.

[0005] Meanwhile, the actuator for the OIS may be disposed around the lens, and may include an actuator for tilting two axes perpendicular to the optical axis Z, i.e., an actuator for tilting the X-axis and an actuator for tilting the Y-axis.

[0006] However, due to the need for ultra-slim and ultra-compact camera modules, there are significant spatial constraints for arranging an actuator for the OIS, and it may be difficult to ensure sufficient space for the lens or the camera module itself including the lens and image sensor to tilt or move for the OIS. Also, the higher the pixel count of the camera, the larger the lens size is preferred to increase the amount of light received, but there may be a limit to increasing the lens size due to the space occupied by the actuator for the OIS.

[0007] Furthermore, when the zooming function, AF function, and OIS function are all included in a camera module, the magnet for OIS and the magnet for AF or Zoom are placed in close proximity to each other, which can cause magnetic field interference. Summary of the Invention [Problem to be solved by the invention]

[0008] The technical problem that the present invention aims to solve is to provide a camera actuator that is applicable to ultra-slim, ultra-compact and high-resolution cameras.

[0009] In addition, the present invention provides a camera actuator that performs tilting through a tilting guide portion pressurized by magnetic bodies of opposite polarity. [Means for solving the problem]

[0010] A camera actuator according to an embodiment of the present invention includes a housing; a mover disposed within the housing; a tilting guide section disposed between the housing and the mover; and a driving section disposed within the housing for driving the mover; a first magnetic body disposed on the mover; and a second magnetic body disposed opposite the first magnetic body; and the tilting guide section is pressed against the mover by the repulsive force between the first magnetic body and the second magnetic body.

[0011] The mover may include a mounting groove that receives the tilting guide portion, and may further include a first member and a second member received in the mounting groove.

[0012] The tilting guide portion may be disposed between the first member and the second member, and the second member may be disposed between the tilting guide portion and the mover.

[0013] The mounting groove may include a first groove located on a bottom surface, the second member may include a second groove arranged on a surface facing the first groove, the first magnetic body may be arranged in the first groove, and the second magnetic body may be arranged in the second groove.

[0014] The tilting guide portion may include a base, a first protrusion protruding from a first surface of the base, and a second protrusion protruding from a second surface of the base.

[0015] The mover may be tilted about a first axis with respect to the first protrusion and may be tilted about a second axis with respect to the second protrusion.

[0016] The first member may include a first protruding groove that receives the first protruding portion, and the second member may include a second protruding groove that receives the second protruding portion.

[0017] The first member, the second member, and the tilting guide portion may at least partially overlap the mover on the second axis, and the tilting guide portion may overlap the first member and the second member on a third axis, and the third axis may be perpendicular to the first axis and the second axis.

[0018] The mounting groove may include a first region in which the first member is housed and a second region in which the second member is housed, and a height of the first region may be greater than a height of the second region.

[0019] The mounting groove may include a third region in which the tilting guide portion is received, and the third region may be disposed between the first region and the second region.

[0020] The height of the third region may be smaller than the height of the first region and larger than the height of the second region.

[0021] The driving unit may include a driving magnet and a driving coil, the driving magnet may include a first magnet, a second magnet, and a third magnet, the driving coil may include a first coil, a second coil, and a third coil, the first magnet and the second magnet may be arranged symmetrically around the first axis on the mover, the first coil and the second coil may be arranged symmetrically around the first axis between the housing and the mover, the third magnet may be arranged on a bottom surface of the mover, and the third coil may be arranged on a bottom surface of the housing.

[0022] The tilting guide part may overlap the third coil or the third magnet with a third axis.

[0023] The second member may be disposed between the tilting guide portion and the first member.

[0024] A camera actuator in accordance with an embodiment includes a housing; a mover disposed within the housing; a tilting guide section disposed between the housing and the mover; and a drive section disposed within the housing for driving the mover; a first magnetic body disposed on the mover; and a support member disposed within the housing and on which a second magnetic body is disposed; the tilting guide section is disposed between the mover and the support member, and the surfaces of the first magnetic body and the second magnetic body facing each other have the same polarity. Effect of the Invention

[0025] According to an embodiment of the present invention, it is possible to provide a camera actuator applicable to ultra-slim, ultra-compact and high-resolution cameras, and in particular, it is possible to efficiently arrange an actuator for an OIS without increasing the overall size of a camera module.

[0026] 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, so that tilting in the X-axis direction and tilting in the Y-axis direction can be realized with a stable structure, and since there is no magnetic field interference with the AF or zooming actuators, a precise OIS function can be realized.

[0027] According to the embodiment of the present invention, it is possible to secure a sufficient amount of light by eliminating the limitation of the lens size, and to realize an OIS with low power consumption. [Brief description of the drawings]

[0028] [Figure 1] FIG. 1 is a perspective view of a camera module according to an embodiment.

[0029] [Figure 2a] 2 is a perspective view of the camera shown in FIG. 1 with a shielding can removed.

[0030] [Figure 2b] FIG. 2b is a plan view of the camera module shown in FIG. 2a.

[0031] [Figure 3a] FIG. 2b is a perspective view of the first camera module shown in FIG. 2a.

[0032] [Figure 3b] 3b is a side cross-sectional view of the first camera module shown in FIG. 3a.

[0033] [Figure 4a] FIG. 2 is an exploded perspective view of a second camera actuator in the first embodiment.

[0034] [Figure 4b] FIG. 2 is a perspective view of a housing according to the first embodiment.

[0035] [Figure 5a] FIG. 2 is a perspective view of a mover according to an embodiment.

[0036] [Figure 5b] FIG. 5b is a perspective view of the mover in a different direction from FIG. 5a.

[0037] [Figure 6a] FIG. 2 is a perspective view of a prism holder according to the embodiment.

[0038] [Figure 6b] FIG. 4 is a bottom view of the prism holder according to the embodiment.

[0039] [Figure 6c] FIG. 4 is a side view of a prism holder according to the embodiment.

[0040] [Figure 6d] FIG. 13 is another side view of the prism holder in the embodiment.

[0041] [Figure 7a] FIG. 2 is a perspective view of a tilting guide portion according to the embodiment.

[0042] [Figure 7b] 7b is a perspective view of the tilting guide part in a direction different from that of FIG. 7a.

[0043] [Figure 7c] FIG. 7b is a cross-sectional view of the tilting guide portion taken along line AA′ in FIG. 7a.

[0044] [Figure 8a] FIG. 13 is a perspective view of a second camera actuator according to an embodiment with a shielding can and a substrate removed.

[0045] [Figure 8b] FIG. 8b is a cross-sectional view taken along line BB' in FIG. 8a.

[0046] [Figure 8c] FIG. 8b is a cross-sectional view taken along line CC' in FIG. 8a.

[0047] [Figure 9] 1 is a diagram illustrating a driving unit according to an embodiment.

[0048] [Figure 10a] FIG. 4 is a perspective view of a second camera actuator in the embodiment.

[0049] [Figure 10b] FIG. 10b is a cross-sectional view taken along line DD' in FIG. 10a.

[0050] [Figure 10c] FIG. 10c is an exemplary view showing the movement of the second camera actuator shown in FIG. 10b.

[0051] [Figure 11a] FIG. 4 is a perspective view of a second camera actuator in the embodiment.

[0052] [Figure 11b] FIG. 11b is a cross-sectional view taken along line EE' in FIG.

[0053] [Figure 11c] FIG. 11B is a diagram illustrating an example of the movement of the second camera actuator illustrated in FIG.

[0054] [Figure 12a] FIG. 11 is an exploded perspective view of a second camera actuator according to the second embodiment.

[0055] [Figure 12b] FIG. 11 is a perspective view of a housing according to a second embodiment.

[0056] [Figure 13a] FIG. 2 is a perspective view of a prism holder according to the embodiment.

[0057] [Figure 13b] FIG. 4 is a bottom view of the prism holder according to the embodiment.

[0058] [Figure 13c] FIG. 4 is a side view of a prism holder according to the embodiment.

[0059] [Figure 14a] FIG. 2 is a perspective view of a tilting guide portion according to the embodiment.

[0060] [Figure 14b] 14b is a perspective view of the tilting guide part in a direction different from that of FIG. 14a. FIG.

[0061] [Figure 14c] FIG. 14b is a cross-sectional view of the tilting guide portion taken along line FF' in FIG. 14a.

[0062] [Figure 15a] FIG. 13 is a perspective view of a second camera actuator according to an embodiment with a shielding can and a substrate removed.

[0063] [Figure 15b] FIG. 15b is a cross-sectional view taken along line GG' in FIG. 15a.

[0064] [Figure 15c] FIG. 15b is a cross-sectional view taken along line HH' in FIG. 15a.

[0065] [Figure 16] 1 is a diagram illustrating a driving unit according to an embodiment.

[0066] [Figure 17a] FIG. 4 is a perspective view of a second camera actuator in the embodiment.

[0067] [Figure 17b] FIG. 17b is a cross-sectional view taken along line MM' in FIG. 17a.

[0068] [Figure 17c] FIG. 17c is a diagram illustrating an example of the movement of the second camera actuator illustrated in FIG. 17b.

[0069] [Figure 18a] FIG. 4 is a perspective view of a second camera actuator in the embodiment.

[0070] [Figure 18b] FIG. 18b is a cross-sectional view taken along line LL' in FIG. 18a.

[0071] [Figure 18c] FIG. 18c is an exemplary view showing the movement of the second camera actuator shown in FIG. 18b.

[0072] [Figure 19a] FIG. 11 is an exploded perspective view of a second camera actuator according to the third embodiment.

[0073] [Figure 19b] FIG. 11 is a perspective view of a housing according to a third embodiment.

[0074] [Figure 20a] FIG. 2 is a perspective view of a prism holder according to the embodiment.

[0075] [Figure 20b] FIG. 4 is a bottom view of the prism holder according to the embodiment.

[0076] [Figure 20c] FIG. 4 is a side view of a prism holder according to the embodiment.

[0077] [Figure 21a] FIG. 2 is a perspective view of a tilting guide portion according to the embodiment.

[0078] [Figure 21b] 21b is a perspective view of the tilting guide part in a direction different from that of FIG. 21a.

[0079] [Figure 21c] FIG. 21b is a cross-sectional view of the tilting guide portion taken along line FF' in FIG. 21a.

[0080] [Figure 22a] FIG. 13 is a perspective view of a second camera actuator according to an embodiment with a shielding can and a substrate removed.

[0081] [Figure 22b] FIG. 22b is a cross-sectional view taken along line PP' in FIG. 22a.

[0082] [Figure 22c] FIG. 22b is a cross-sectional view taken along line QQ′ in FIG. 22a.

[0083] [Diagram 23] 1 is a diagram illustrating a driving unit according to an embodiment.

[0084] [Figure 24a] FIG. 4 is a perspective view of a second camera actuator in the embodiment.

[0085] [Figure 24b] FIG. 24b is a cross-sectional view taken along line SS' in FIG. 24a.

[0086] [Figure 24c] FIG. 24c is an exemplary view showing the movement of the second camera actuator shown in FIG. 24b.

[0087] [Figure 25a] FIG. 4 is a perspective view of a second camera actuator in the embodiment.

[0088] [Figure 25b] FIG. 25b is a cross-sectional view taken along line RR' in FIG. 25a.

[0089] [Figure 25c] FIG. 25b is a diagram illustrating an example of the movement of the second camera actuator shown in FIG. 25b.

[0090] [Figure 26] FIG. 11 is a perspective view of an actuator for AF or Zoom according to another embodiment of the present invention.

[0091] [Figure 27] FIG. 27 is a perspective view of the actuator according to the embodiment shown in FIG. 26 with some components omitted.

[0092] [Figure 28] FIG. 27 is an exploded perspective view of the actuator according to the embodiment shown in FIG. 26 with some components omitted.

[0093] [Figure 29a] FIG. 29 is a perspective view of a first lens assembly in the actuator according to the embodiment shown in FIG. 28.

[0094] [Figure 29b] FIG. 29b is a perspective view of the first lens assembly shown in FIG. 29a with some components removed.

[0095] [Diagram 30] FIG. 29 is a perspective view of a third lens assembly in the actuator according to the embodiment shown in FIG. 28.

[0096] [Diagram 31] 1 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied;

[0097] [Diagram 32] 1 is a perspective view of a vehicle to which a camera module according to an embodiment is applied; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0098] The present invention can be modified in various ways and can have various embodiments, and a specific embodiment will be described with reference to the drawings. However, this is not intended to limit the present invention to the specific embodiment, and it should be understood that the present invention includes all modifications, equivalents, and alternatives within the spirit and technical scope of the present invention.

[0099] Terms including ordinal numbers such as second, first, etc. may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another. For example, a second component may be named a first component and similarly a first component may be named a second component without departing from the scope of the invention. The term and / or includes a combination of multiple related listed items or any item among multiple related listed items.

[0100] When a component is said to be "coupled" or "connected" to another component, it should be understood that it may be directly coupled or connected to the other component, but there may be other components in between. Conversely, when a component is said to be "directly coupled" or "directly connected" to another component, it should be understood that there are no other components in between.

[0101] The terms used in this application are merely used to describe certain embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "include" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0102] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which this invention pertains. Terms as defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0103] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Regardless of the reference numerals, the same or corresponding elements will be designated by the same reference numerals, and redundant description thereof will be omitted.

[0104] FIG. 1 is a perspective view of a camera module according to an embodiment, FIG. 2A is a perspective view of the camera module shown in FIG. 1 with a shielding can removed, and FIG. 2B is a plan view of the camera module shown in FIG. 2A.

[0105] 1, the camera module 1000 may include a single or multiple 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 shielding can 1510.

[0106] 1, 2a and 2b, the first camera module 1000A may include a single actuator or multiple actuators. For example, the first camera module 1000A may include a first camera actuator 1100 and a second camera actuator 1200.

[0107] The first camera actuator 1100 may be electrically connected to a first group of circuit boards 1410, and the second camera actuator 1200 may be electrically connected to a second group of circuit boards 1420, and although not shown, the second group of circuit boards 1420 may be electrically connected to the first group of circuit boards 1410. Or, the first camera actuator 1100 and the second camera actuator 1200 may be connected to the first group of circuit boards 1410. And, the second camera module 1000B may be electrically connected to a third group of circuit boards 1430.

[0108] 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 more lenses and perform an auto focus function or a zoom function by moving the lenses in response to a control signal from a predetermined controller.

[0109] The second camera actuator 1200 may be an OIS (Optical Image Stabilizer) actuator.

[0110] The second camera module 1000B may include a fixed focal length lens disposed in a lens barrel (not shown). A fixed focal length lens may be referred to as a "single focal length lens" or a "single lens."

[0111] The second camera module 1000B is disposed in a housing (not shown) and may include an actuator (not shown) for driving a 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 type, a thermal type, a bimorph type, an electrostatic force type, etc., but is not limited thereto.

[0112] Next, FIG. 3a is a perspective view of the first camera module illustrated in FIG. 2a, and FIG. 3b is a side cross-sectional view of the first camera module illustrated in FIG. 3a.

[0113] Referring to FIG. 3a, the first camera module 1000A may include a first camera actuator 1100 performing zooming and AF functions and a second camera actuator 1200 arranged on one side of the first camera actuator 1100 and performing an OIS function.

[0114] 3b, the first camera actuator 1100 may include an optical system and a lens driver. For example, the first camera 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.

[0115] Also, the first camera actuator 1100 includes a driving coil 1140 and a driving magnet 1160, and is capable of performing a high magnification zooming function.

[0116] For example, the first lens assembly 1110 and the second lens assembly 1120 may be moving lenses that move through the driving coil 1140, the driving magnet 1160, and the guide pin 50, and 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 condenser that focuses light at a specific position, and the first lens assembly 1110 may function as a variator that refocuses an image focused by the third lens assembly 1130, which is a condenser, at another position. Meanwhile, the first lens assembly 1110 may be in a state where the distance to the subject or the distance to the image changes significantly, resulting in a large change in magnification, and the first lens assembly 1110, which is a variator, may play an important role in changing the focal length or magnification of the optical system. Meanwhile, the image point focused by the first lens assembly 1110, which is a variator, may have some differences depending on the position. Therefore, the second lens assembly 1120 can perform a position compensation function for the image formed by the variable magnification element. For example, the second lens assembly 1120 can perform the function of a compensator that accurately images an image point formed by the first lens assembly 1110, which is a variable magnification element, at the actual position of the image sensor 1190.

[0117] For example, the first lens assembly 1110 and the second lens assembly 1120 can be driven by an electromagnetic force generated by the interaction between a drive coil 1140 and a drive magnet 1160 .

[0118] A given image sensor 1190 can be disposed perpendicular to the optical axis direction of the collimated light.

[0119] Next, the second camera actuator 1200 will be described in detail later with reference to FIG.

[0120] In addition, the camera module according to the embodiment can implement OIS by controlling the optical path through the camera actuator, thereby minimizing the occurrence of descent and tilt phenomena and exhibiting the best optical characteristics.

[0121] 1 to 3 and the associated description have been created with the intention of explaining the overall structure and operating principle of a camera module according to an embodiment of the present invention, and therefore the embodiment of the present invention is not limited to the detailed configurations illustrated in FIG. 1 to FIG. 3.

[0122] Meanwhile, when an actuator for OIS and an 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 may be prevented when the OIS actuator is driven. Since the driving magnet of the second camera actuator 1200 is disposed separately from the first camera actuator 1100, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 may be prevented. In this specification, OIS may be used interchangeably with terms such as camera shake correction, optical image stabilization, optical image correction, and shake correction.

[0123] Hereinafter, a control method and a detailed structure of the second actuator according to an embodiment of the present invention will be described in more detail.

[0124] FIG. 4a is an exploded perspective view of the second camera actuator according to the first embodiment, and FIG. 4b is a perspective view of the housing according to the first embodiment.

[0125] 4a and 4b, the second camera actuator 1200 according to the embodiment includes a shield can 1210, a housing 1220, a mover 1230, a rotating section 1240, a driving section 1250, a first member 1231a, and a second member 1226.

[0126] The mover 1230 may include a prism holder 1231 and a prism 1232 mounted on the prism holder 1231. The rotation unit 1240 may include a tilting guide unit 1241, a first magnetic body 1242 and a second magnetic body 1243 having different polarities so as to apply pressure to the tilting guide unit 1241. The driving unit 1250 may include a driving magnet 1251, a driving coil 1252, a Hall sensor unit 1253, a substrate unit 1254, and a yoke unit 1255.

[0127] First, the shielding can 1210 may be positioned at the outermost side of the second camera actuator 1200 to surround a rotating part 1240 and a driving part 1250, which will be described later.

[0128] Such a shielding can 1210 can block or reduce electromagnetic waves generated from the outside, that is, the shielding can 1210 can reduce the occurrence of malfunctions in the rotating part 1240 or the driving part 1250.

[0129] The housing 1220 may be positioned inside the shielding can 1210. Also, the housing 1220 may be positioned inside a substrate unit 1254, which will be described later. The housing 1220 and the shielding can 1210 may be fastened to each other by being inserted or mated with each other.

[0130] The housing 1220 can include a first housing side 1221 , a second housing side 1222 , a third housing side 1223 and a fourth housing side 1224 .

[0131] The first housing side 1221 and the second housing side 1222 may be disposed opposite each other, and the third housing side 1223 and the fourth housing side 1224 may be disposed opposite each other.

[0132] And, the third housing side 1223 and the fourth housing side 1224 may be disposed between the first housing side 1221 and the second housing side 1222. The third housing side 1223 may be in contact with the first housing side 1221, the second housing side 1222, and the fourth housing side 1224. The third housing side 1223 may be a bottom surface of the housing 1220.

[0133] Here, the bottom surface means one side in the first direction. The first direction is the X-axis direction in the drawing and may be mixed with the second axis direction, etc. The second direction is the Y-axis direction in the drawing and may be mixed with the first axis direction, etc. The second direction is a direction perpendicular to the first direction. The third direction is the Z-axis direction in the drawing and may be mixed with the third axis direction, etc. It is a direction perpendicular to both the first and second directions. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and may be tilted by the second camera actuator. This will be described in detail later.

[0134] The first housing side portion 1221 may include a first housing hole 1221a, in which a first coil 1252a (described later) may be located.

[0135] In addition, the second housing side portion 1222 may include a second housing hole 1222a, in which a second coil 1252b (described later) may be located.

[0136] The first coil 1252a and the second coil 1252b may be coupled to the substrate unit 1254. As an example, the first coil 1252a and the second coil 1252b may be electrically connected to the substrate unit 1254 so that a current may flow therethrough. This current is an element of electromagnetic force that allows the second camera actuator to tilt with respect to the X-axis.

[0137] Additionally, the third housing side portion 1223 may include a third-1 housing hole 1223a and a third-2 housing hole 1223b.

[0138] A third coil 1252c, which will be described later, may be positioned in the 3-1 housing hole 1223a. The third coil 1252c may be coupled to the substrate part 1254. The third coil 1252c may be electrically connected to the substrate part 1254 so that a current may flow through the third coil 1252c. This current is an element of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.

[0139] A first member 1231a, which will be described later, may be mounted in the 3-2 housing hole 1223b. Accordingly, the first member 1231a may be coupled to the third housing side portion 1223. The first member 1231a may be disposed penetrating the 3-2 housing hole 1223b. Accordingly, the first member 1231a may at least partially overlap the 3-2 housing hole 1223b in the third direction (Z-axis direction).

[0140] Also, the prism holder 1231 may include a protrusion due to the fourth mounting groove 1231S4a. At this time, the protrusion may extend toward the fourth housing side 1224. Also, such a protrusion may be located on the upper part, lower part, or side of the mover 1230. As an embodiment, the protrusion may be located on the upper part of the mover 1230 to improve the coupling force between the mover 1230, the housing 1220, and the tilting guide part 1241. Also, the end of the protrusion may contact the first member 1231a. That is, the protrusion may be coupled to the first member 1231a. With this configuration, as described below, a repulsive force generated by the first magnetic body and the second magnetic body may be transferred from the prism holder 1231 to the first member 1231a, or from the first member 1231a to the prism holder 1231. The above content may be applied to this embodiment and other embodiments described below.

[0141] The fourth housing side 1224 is disposed between the first housing side 1221 and the second housing side 1222 and can contact the first housing side 1221, the second housing side 1222 and the third housing side 1223.

[0142] In addition, the housing 1220 may include a receiving portion 1225 formed by the first housing side portion 1221 to the fourth housing side portion 1224. In the receiving portion 1225, a second member 1226, a first member 1231a, and a mover 1230 may be positioned as components.

[0143] The second member 1226 may be disposed in the housing 1220. The second member 1226 may be disposed in the housing or may be included in the housing. The second member 1226 may be coupled to the housing 1220. As an example, the second member 1226 may be located between the 3-1 housing hole 1223a and the 4th housing side 1224. The second member 1226 may be coupled to the 3rd housing side 1223 by passing through the 3-2 housing hole 1223b formed in the 3rd housing side 1223. Therefore, the second member 1226 may be coupled to the housing 1220 and may be fixed even when the mover 1230, which will be described later, is tilted. The second member 1226 may also include a second groove gr2 in which the second magnetic body 1243 is mounted. Accordingly, the second member 1226 may fix the position of the second magnetic body 1243 to prevent a change in the supporting force due to a repulsive force. Also, the second member 1226 may be formed integrally with the housing 1220 or separately. When formed integrally, the bonding strength between the second member 1226 and the housing 1220 may be increased, improving the reliability of the camera actuator. When formed separately, the ease of assembly and manufacturing of the second member 1226 and the housing 1220 may be improved. The following description will be based on the case where the second member 1226 is separated. Also, in this specification, the second member 1226 should be understood as a support member on which the second magnetic body is disposed within the housing 1220.

[0144] Mover 1230 includes a prism holder 1231 and a prism 1232 mounted in prism holder 1231 .

[0145] First, the prism holder 1231 may be mounted in the receiving portion 1225 of the housing 1220. The prism holder 1231 may include a first prism outer surface to a fourth prism outer surface corresponding to the first housing side 1221, the second housing side 1222, the third housing side 1223, and the fourth housing side 1224, respectively. Also, the prism holder 1231 may include a first member 1231a disposed in a fourth mounting groove of the fourth prism outer surface. This will be described in detail later. The first member 1231a may include a second protrusion groove PH2 formed on a surface of the prism holder 1231 facing the fourth mounting groove. A second protrusion of the tilting guide part 1241 described later may be mounted in the second protrusion groove PH2.

[0146] The prism 1232 may be mounted in the prism holder 1231. To this end, the prism holder 1231 may have a mounting surface, and the mounting surface may be formed by a receiving groove. The prism 1232 may include a reflecting portion disposed therein. However, the present invention is not limited thereto. The prism 1232 may reflect light reflected from the outside (e.g., an object) to the inside of the camera module. In other words, the prism 1232 may change the path of the reflected light to improve the spatial limitations of the first camera actuator and the second camera actuator. It should be understood that this allows the thickness of the camera module to be minimized while the light path is expanded to provide a high range of magnification.

[0147] Further, the first member 1231a may be combined with the prism holder 1231. The first member 1231a may contact a protrusion located in an area other than the fourth mounting groove on an outer surface of the fourth prism of the prism holder 1231. The first member 1231a may be formed integrally with the prism holder 1231. Alternatively, the first member 1231a may be formed as a structure separated from the prism holder 1231.

[0148] The rotating part 1240 includes a tilting guide part 1241, and a first magnetic body 1242 and a second magnetic body 1243 having mutually different polarities so as to apply pressure to the tilting guide part 1241.

[0149] The tilting guide part 1241 may be coupled to the mover 1230 and the housing 1220. Specifically, in the first embodiment, the tilting guide part 1241 may be disposed between the first member 1231a and the second member 1226 and coupled to the mover 1230 and the housing 1220. Accordingly, the fourth housing side part 1224, the first member 1231a, the tilting guide part 1241, the second member 1226, and the prism holder 1231 may be arranged in this order in the third direction (Z-axis direction).

[0150] Also, the tilting guide unit 1241 may be disposed adjacent to the optical axis, so that the actuator according to the embodiment can easily change the optical path by tilting on the first and second axes, which will be described later.

[0151] The tilting guide unit 1241 may include a base, a first protrusion spaced apart from the base in a first direction (X-axis direction) and a second protrusion spaced apart from the base in a second direction (Y-axis direction). The first protrusion and the second protrusion may protrude in opposite directions. It should be understood that the tilting guide unit 1241 may be expressed in various ways, such as a rotating plate, a guide unit, a rotating guide unit, a tilting unit, a tilting plate, etc., which will be described in detail later.

[0152] The first magnetic body 1242 may be mounted on the fourth mounting groove 1231S4a of the prism holder 1231. Specifically, the first magnetic body 1242 may be mounted on the first groove of the fourth mounting groove.

[0153] The second magnetic body 1243 may be mounted in the second member 1226. As an example, the second magnetic body 1243 may be mounted in the second groove gr2 of the second member 1226.

[0154] Also, the first magnetic body 1242 and the second magnetic body 1243 may have the same polarity. For example, the first magnetic body 1242 may be a magnet having a north pole, and the second magnetic body 1243 may be a magnet having a north pole. Or, conversely, the first magnetic body 1242 may be a magnet having a south pole, and the second magnetic body 1243 may be a magnet having a south pole.

[0155] The first magnetic body 1242 and the second magnetic body 1243 can generate a repulsive force between each other due to the above-mentioned polarity. With this configuration, the above-mentioned repulsive force can be applied to the prism holder 1231 coupled to the first magnetic body 1242 and the second member 1226 or the housing 1220 coupled to the second magnetic body 1243. The repulsive force applied to the prism holder 1231 can also be transmitted to the first member 1231a. As a result, the tilting guide part 1241 disposed between the first member 1231a and the second member 1226 can be pressed by the repulsive force. That is, the repulsive force can maintain the force that the tilting guide part 1241 is positioned between the first member 1231a and the second member 1226. This will be described in detail later.

[0156] Also, there may be a plurality of first magnetic bodies 1242 and second magnetic bodies 1243. Thus, the repulsive force generated between the first magnetic body 1242 and the second magnetic body 1243 can be concentrated at a predetermined point to prevent dispersion. For example, the repulsive force can be concentrated at the center of the tilting guide unit to minimize elements that can act as resistance to rotation.

[0157] The driving unit 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor unit 1253 and a substrate unit 1254 .

[0158] The driving magnet 1251 may include a plurality of magnets. In one embodiment, the driving magnet 1251 may include a first magnet 1251a, a second magnet 1251b, and a third magnet 1251c.

[0159] The first magnet 1251a, the second magnet 1251b, and the third magnet 1251c may be positioned on the outer surface of the prism holder 1231. The first magnet 1251a and the second magnet 1251b may be positioned to face each other. The third magnet 1251c may be positioned on the bottom surface of the outer surface of the prism holder 1231. This will be described in detail later.

[0160] The drive coil 1252 can include multiple coils. As an example, the drive coil 1252 can include a first coil 1252a, a second coil 1252b, and a third coil 1252c.

[0161] The first coil 1252a may be positioned to face the first magnet 1251a. As described above, the first coil 1252a may be positioned in the first housing hole 1221a of the first housing side portion 1221. When a current flows through the first coil 1252a, the first magnet 1251a may generate a force that reflects the magnetic field generated by the first coil 1252a.

[0162] Also, the second coil 1252b may be positioned to face the second magnet 1251b. As described above, the second coil 1252b may be positioned in the second housing hole 1222a of the second housing side portion 1222. When a current flows through the second coil 1252b, the second magnet 1251b may generate a force that reflects the magnetic field generated by the second coil 1252b.

[0163] The first coil 1252a may be positioned to face the second coil 1252b. That is, the first coil 1252a may be positioned symmetrically with respect to the first direction (X-axis direction) with respect to the second coil 1252b. This can be applied to the first magnet 1251a and the second magnet 1251b in the same manner. That is, the first magnet 1251a and the second magnet 1251b may be positioned symmetrically with respect to the first direction (X-axis direction). Also, the first coil 1252a, the second coil 1252b, the first magnet 1251a, and the second magnet 1251b may be positioned to overlap at least partially in the second direction (Y-axis direction). With this configuration, X-axis tilting can be accurately performed without tilting 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.

[0164] The third coil 1252c may be positioned to face the third magnet 1251c. Therefore, as described above, the third coil 1252c may be positioned in the 3-1 housing hole 1223a of the third housing side portion 1223. The third coil 1252c generates electromagnetic force with the third magnet 1251c, thereby allowing the mover 1230 and the rotating part 1240 to perform Y-axis tilting with respect to the housing 1220.

[0165] Here, X-axis tilting means tilting with respect to the X-axis, and Y-axis tilting means tilting with respect to the Y-axis.

[0166] The hall sensor unit 1253 may include a plurality of hall sensors. As an embodiment, the hall sensor unit 1253 may include a first hall sensor 1253a and a second hall sensor 1253b. The first hall sensor 1253a may be located inside the first coil 1252a or the second coil 1252b. The first hall sensor 1253a may detect a change in magnetic flux inside the first coil 1252a or the second coil 1252b. Thus, position sensing between the first and second magnets 1251a and 1251b and the first hall sensor 1253a may be performed. The second camera actuator according to the embodiment may control the X-axis tilt through this. Also, the first hall sensor 1253a may be a plurality of sensors.

[0167] The second Hall sensor 1253b may be located inside the third coil 1252c. The second Hall sensor 1253b may detect a change in magnetic flux inside the third coil 1252c. Thus, position sensing between the third magnet 1251c and the second Hall sensor 1253b may be performed. The second camera actuator according to the embodiment may control the Y-axis tilt through this.

[0168] The substrate unit 1254 may be located under the actuator 1250. The substrate unit 1254 may be electrically connected to the actuator coil 1252 and the Hall sensor unit 1253. For example, the substrate unit 1254 may be coupled to the actuator coil 1252 and the Hall sensor unit 1253 by SMT. However, the present invention is not limited to this method. The substrate unit 1254 may be formed in various shapes for electrical connection with another camera actuator coupled to the second camera actuator described herein. In addition, the substrate unit 1254 may include various grooves or holes for easy coupling with the housing 1220.

[0169] In the embodiment, the substrate unit 1254 may be located between the shielding can 1210 and the housing 1220 and may be coupled to the shielding can 1210 and the housing 1220. As described above, various coupling methods may be used. Through the coupling, the driving coil 1252 and the Hall sensor unit 1253 may be located within the outer surface of the housing 1220.

[0170] The substrate unit 1254 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid PCB, a flexible PCB, a rigid flexible PCB, etc. However, the substrate unit 1254 is not limited to these types.

[0171] Figure 5a is an oblique view of a mover according to an embodiment, Figure 5b is an oblique view of the mover in a different direction than 5a, Figure 6a is an oblique view of a prism holder according to an embodiment, Figure 6b is a bottom view of the prism holder according to an embodiment, Figure 6c is a side view of the prism holder according to an embodiment, and Figure 6d is another side view of the prism holder according to an embodiment.

[0172] 5a and 5b, a prism 1232 may be mounted on a prism holder. Such a prism 1232 may be a reflector and may be a right angle prism, but is not limited thereto.

[0173] As an embodiment, the prism 1232 may have a protrusion 1232a on a part of the outer surface. The prism 1232 may be easily coupled to the prism holder through the protrusion 1232a. Also, the prism 1232 may be mounted on the mounting surface of the prism holder at the bottom surface 1232b. Therefore, the bottom surface 1232b of the prism 1232 may correspond to the mounting surface of the prism holder. As an embodiment, the bottom surface 1232b may be an inclined surface in the same manner as the mounting of the prism holder. Accordingly, the prism moves due to the movement of the prism holder, and the prism 1232 may be prevented from being separated from the prism holder due to the movement.

[0174] Also, as described above, the prism 1232 may be configured with a structure capable of reflecting light reflected from the outside (e.g., an object) to the inside of the camera module. As in the embodiment, the prism 1232 may be formed of a single mirror. Also, the prism 1232 may change the path of the reflected light to improve the spatial limitations of the first camera actuator and the second camera actuator. It should be understood that this allows the camera module to provide a high range of magnification by expanding the optical path while minimizing the thickness. It should also be understood that the camera module including the camera actuator according to the embodiment can provide a high range of magnification by expanding the optical path while minimizing the thickness.

[0175] 6a to 6d, the prism holder 1231 may include a mounting surface 1231k on which the prism 1232 is mounted. The mounting surface 1231k may be an inclined surface. The prism holder 1231 may also include a step 1231b on the upper part of the mounting surface 1231k. The step 1231b of the prism holder 1231 may be coupled to the protrusion 1232a of the prism 1232.

[0176] Also, the prism holder 1231 may include a plurality of outer surfaces. The prism holder 1231 may include a first prism outer surface 1231S1, a second prism outer surface 1231S2, a third prism outer surface 1231S3, and a fourth prism outer surface 1231S4.

[0177] The first prism outer side surface 1231S1 may be positioned to face the second prism outer side surface 1231S2. That is, the first prism outer side surface 1231S1 may be disposed symmetrically with the second prism outer side surface 1231S2 with respect to the first direction (X-axis direction).

[0178] The first prism outer surface 1231S1 may be positioned to correspond to a first housing side, i.e., the first prism outer surface 1231S1 may be positioned to face the first housing side, and the second prism outer surface 1231S2 may be positioned to face the second housing side.

[0179] In addition, the first prism outer side surface 1231S1 may include a first mounting groove 1231S1a. And, the second prism outer side surface 1231S2 may include a second mounting groove 1231S2a. The first mounting groove 1231S1a and the second mounting groove 1231S2a may be disposed symmetrically with respect to each other with respect to the first direction (X-axis direction).

[0180] The first mounting groove 1231S1a and the second mounting groove 1231S2a may be arranged to overlap in the second direction (Y-axis direction). The first magnet 1251a may be arranged in the first mounting groove 1231S1a, and the second magnet 1251b may be arranged in the second mounting groove 1231S2a. The first magnet 1251a and the second magnet 1251b may also be arranged symmetrically with respect to the first direction (X-axis direction).

[0181] As described above, depending on the positions of the first and second mounting grooves and the first and second magnets, the electromagnetic forces induced by each magnet can be provided on the same axis to the first prism outer surface 1231S1 and the second prism outer surface 1231S2. For example, the area on the first prism outer surface 1231S1 where the electromagnetic force is applied (e.g., the area where the electromagnetic force is strongest) and the area on the second prism outer surface 1231S2 where the electromagnetic force is applied (e.g., the area where the electromagnetic force is strongest) can be located on an axis parallel to the second direction (Y-axis direction). This allows X-axis tilting to be performed accurately.

[0182] A first magnet 1251a may be disposed in the first mounting groove 1231S1a, and a second magnet 1251b may be disposed in the second mounting groove 1231S2a.

[0183] The third prism outer surface 1231S3 may be in contact with the first prism outer surface 1231S1 and the second prism outer surface 1231S2 and may be an outer surface extending in the second direction (Y-axis direction) from one side of the first prism outer surface 1231S1 and the second prism outer surface 1231S2. Also, the third prism outer surface 1231S3 may be located between the first prism outer surface 1231S1 and the second prism outer surface 1231S2. The third prism outer surface 1231S3 may be a bottom surface of the prism holder 1231.

[0184] Also, the third prism outer surface 1231S3 may include a third mounting groove 1231S3a. A third magnet 1251c may be disposed in the third mounting groove 1231S3a. The third prism outer surface 1231S3 may be positioned to face the third housing side portion 1223. Also, the 3-1 housing hole 1223a may at least partially overlap the third mounting groove 1231S3a in the first direction (X-axis direction). Accordingly, the third magnet 1251c in the third mounting groove 1231S3a and the third coil 1252c in the 3-1 housing hole 1223a may be positioned to face each other. And, the third magnet 1251c and the third coil 1252c generate an electromagnetic force, so that the second camera actuator can tilt in the Y-axis direction.

[0185] Also, while X-axis tilt is performed by multiple magnets (first and second magnets 1251a and 1251b), Y-axis tilt can be performed only by the third magnet 1251c. In an embodiment, the third mounting groove 1231S3a may be wider than the first mounting hole 1231S1a or the second mounting hole 1231S2a. With this configuration, Y-axis tilt can be performed by current control similar to X-axis tilt.

[0186] The fourth prism outer side surface 1231S4 may be an outer side surface that contacts the first prism outer side surface 1231S1 and the second prism outer side surface 1231S2 and extends in the first direction (X-axis direction) from the first prism outer side surface 1231S1 and the second prism outer side surface 1231S2. Also, the fourth prism outer side surface 1231S4 may be located between the first prism outer side surface 1231S1 and the second prism outer side surface 1231S2.

[0187] The fourth prism outer surface 1231S4 may include a fourth mounting groove 1231S4a. The tilting guide part 1241 may be positioned in the fourth mounting groove 1231S4a. Also, the first member 1231a and the second member 1226 may be positioned in the fourth mounting groove 1231S4a. Also, the fourth mounting groove 1231S4a may include a plurality of regions. It may include a first region AR1, a second region AR2, and a third region AR3.

[0188] The first member 1231a may be located in the first region AR1. That is, the first region AR1 may overlap with the first member 1231a in the first direction (X-axis direction).

[0189] The second region AR2 may be located in the second member 1226. That is, the second region AR2 may overlap with the second member 1226 in the first direction (X-axis direction).

[0190] The third region AR3 may be located in the tilting guide part 1241. That is, the third region AR3 may overlap the tilting guide part 1241 in the first direction (X-axis direction). The third region AR3 may be located between the first region AR1 and the second region AR2. In this embodiment, the first region AR1 includes a region that overlaps the first member 1231a and all of the protrusions of the tilting guide part 1241 in the first direction (X-axis direction). The second region AR2 includes a region that overlaps the protrusions of the tilting guide part 1241 and all of the second member 1226 in the first direction (X-axis direction). The third region AR3 will be described based on a region that overlaps the tilting guide part 1241 in the third direction (Z-axis direction) and does not overlap the first member 1231a and the second member 1226 in the first direction (X-axis direction).

[0191] In addition, the fourth mounting groove 1231S4a may include a first groove gr1. The above-mentioned first magnetic bodies 1242 may be mounted in the first groove gr1. In addition, the first groove gr1 may be plural in number according to the number of the first magnetic bodies 1242. That is, the number of the first grooves gr1 may correspond to the number of the first magnetic bodies 1242.

[0192] In addition, in the embodiment, the second region AR2 may be disposed spaced apart from the first region AR1 and the third region AR3 in the third direction (Z-axis direction).

[0193] Also, in the fourth mounting groove 1231S4a, the first groove gr1 and the second region AR2 may overlap with the prism in the first direction (X-axis direction). In other words, the length of the fourth mounting groove 1231S4a in the third direction (Z-axis direction) may be greater than the length of the tilting guide part 1241 in the third direction (z-axis direction). Therefore, the bottom surface of the fourth mounting groove 1231S4a may be positioned adjacent to the third mounting groove 1231S3a. With this configuration, the tilting guide part may be positioned adjacent to the center of gravity of the mover. Accordingly, the moment value that tilts the mover may be minimized. Also, the consumption of the current applied to the coil part, etc. to tilt the mover may be minimized.

[0194] As an example, the first region AR1, the second region AR2, and the third region AR3 may have different heights in the first direction (X-axis direction) on the fourth prism outer surface 1231S4.

[0195] 7a is a perspective view of the tilting guide portion according to the embodiment, FIG. 7b is a perspective view of the tilting guide portion in a direction different from that of FIG. 7a, and FIG. 7c is a cross-sectional view of the tilting guide portion taken along line AA' in FIG. 7a.

[0196] 7a to 7c, the tilting guide part 1241 according to the embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1241a of the base BS, and a second protrusion PR2 protruding from a second surface 1241b of the base BS. Depending on the structure, the first protrusion and the second protrusion may be formed on opposite surfaces, but the present specification will be described based on the above content.

[0197] First, the base BS may include a first surface 1241a and a second surface 1241b facing the first surface 1241a. That is, the first surface 1241a may be spaced apart from the second surface 1241b in the third direction (Z-axis direction) and may be outer surfaces facing each other or facing each other within the tilting guide part 1241.

[0198] The tilting guide portion 1241 may include a first protrusion PR1 extending to one side from the first surface 1241a. According to an embodiment, the first protrusion PR1 may protrude from the first surface 1241a toward the mover. The first protrusion PR1 may be a plurality of protrusions, including a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0199] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). In other words, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). In addition, in the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by a virtual line extending in the first direction (X-axis direction).

[0200] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature, for example, a hemispherical shape, and may contact the first groove of the housing at a point farthest from the first surface 1241a of the base BS.

[0201] In addition, the tilting guide portion 1241 may include a second protrusion portion PR2 extending to one side from the second surface 1241b. According to an embodiment, the second protrusion portion PR2 may protrude from the second surface 1241b toward the housing. The second protrusion portion PR2 may be a plurality of protrusions, and may include a 2-1 protrusion portion PR2a and a 2-2 protrusion portion PR2b in an embodiment.

[0202] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). In addition, in the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by a virtual line extending in the second direction (Y-axis direction).

[0203] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature, for example, a hemispherical shape, and may contact the first member 1231a at a point away from the second surface 1241b of the base BS.

[0204] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in the center of the space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. With this configuration, the actuator according to the embodiment may have the same range of X-axis tilt angles based on the X-axis. In other words, the tilting guide unit 1241 may provide the same range (e.g., positive / negative range) in which the mover can tilt in the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b based on the X-axis.

[0205] Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in the center of the space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. With this configuration, the actuator according to the embodiment may have the same range of Y-axis tilt angles based on the Y axis. In other words, the tilting guide unit 1241 and the mover may provide the same range (e.g., positive / negative range) in which the Y-axis tilt can be performed based on the Y axis based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b.

[0206] Specifically, the first surface 1241a may include a first outer line M1, a second outer line M2, a third outer line M3, and a fourth outer line M4. The first outer line M1 and the second outer line M2 may face each other, and the third outer line M3 and the fourth outer line M4 may face each other. The third outer line M3 and the fourth outer line M4 may be located between the first outer line M1 and the second outer line M2. The first outer line M1 and the second outer line M2 may be perpendicular to the first direction (X-axis direction), while the third outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).

[0207] At this time, the first protrusion PR1 may be positioned on the first virtual line VL1. Here, the first virtual line VL1 is a line that bisects the first outer line M1 and the second outer line M2. Accordingly, the tilting guide part 1241 can easily perform X-axis tilt through the first protrusion PR1. In addition, since the tilting guide part 1241 performs X-axis tilt based on the first virtual line VL1, a rotational force can be uniformly applied to the tilting guide part 1241. Therefore, the X-axis tilt can be performed precisely, and the reliability of the device can be improved.

[0208] Also, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be disposed symmetrically with respect to the first virtual line VL1 and the second virtual line VL2. Or, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned symmetrically with respect to the first center point C1. With this configuration, the supporting force supported by the first protrusion PR1 during X-axis tilting may be equally applied to the upper and lower sides with respect to the second virtual line VL2. Therefore, the reliability of the tilting guide part may be improved. Here, the second virtual line VL2 is a line that bisects the third outer line M3 and the fourth outer line M4. And, the first center point C1 may be an intersection point of the first virtual line VL1 and the second virtual line VL2. Or, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide part 1241.

[0209] Also, the second surface 1241b may include a fifth outer line M1', a sixth outer line M2', a seventh outer line M3', and an eighth outer line M4'. The fifth outer line M1' and the sixth outer line M2' may face each other, and the seventh outer line M3' and the eighth outer line M4' may face each other. The seventh outer line M3' and the eighth outer line M4' may be located between the fifth outer line M1' and the sixth outer line M2'. The fifth outer line M1' and the sixth outer line M2' may be perpendicular to the first direction (X-axis direction), while the seventh outer line M3' and the eighth outer line M4' may be parallel to the first direction (X-axis direction).

[0210] Furthermore, since the tilting guide part 1241 performs the Y-axis tilt based on the fourth virtual line VL2', a rotational force can be uniformly applied to the tilting guide part 1241. Therefore, the Y-axis tilt can be precisely performed, and the reliability of the device can be improved.

[0211] Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be disposed symmetrically with respect to the third virtual line VL1' on the fourth virtual line VL2'. Or, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned symmetrically with respect to the second center point C1'. With this configuration, the supporting force supported by the second protrusion PR2 during Y-axis tilting may be equally applied to the upper and lower sides of the tilting guide part with respect to the fourth virtual line VL2'. Therefore, the reliability of the tilting guide part may be improved. Here, the third virtual line VL1' is a line that bisects the fifth outer line M1' and the sixth outer line M2'. And, the second center point C1' may be an intersection of the third virtual line VL1' and the fourth virtual line VL2'. Or, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide part 1241.

[0212] In addition, a distance DR2 between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction (X-axis direction) may be greater than the length of the second protrusion PR2 in the first direction (X-axis direction). Therefore, when X-axis tilt is performed based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b, resistance by the second protrusion PR2 can be minimized.

[0213] Accordingly, a distance ML2 between the 2-1 protrusion portion PR2a and the 2-2 protrusion portion PR2b in the second direction (Y-axis direction) may be greater than the length of the first protrusion portion PR1 in the second direction (Y-axis direction). Therefore, when Y-axis tilt is performed based on the 2-1 protrusion portion PR2a and the 2-2 protrusion portion PR2b, resistance by the first protrusion portion PR1 can be minimized.

[0214] Figure 8a is an oblique view of a second camera actuator in an embodiment with the shielding can and substrate removed, Figure 8b is a cross-sectional view taken along line BB' in Figure 8a, and Figure 8c is a cross-sectional view taken along line CC' in Figure 8a.

[0215] 8a to 8c, the first coil 1252a may be located on the first housing side portion 1221, and the first magnet 1251a may be located on the first prism outer surface 1231S1 of the prism holder 1231. Therefore, the first coil 1252a and the first magnet 1251a may be located facing each other. The first magnet 1251a may at least partially overlap the first coil 1252a in the second direction (Y-axis direction).

[0216] Also, the second coil 1252b may be located on the second housing side portion 1222, and the second magnet 1251b may be located on the second prism outer surface 1231S2 of the prism holder 1231. Therefore, the second coil 1252b and the second magnet 1251b may be located facing each other. The second magnet 1251b may at least partially overlap the second coil 1252b in the second direction (Y-axis direction).

[0217] Furthermore, the first coil 1252a and the second coil 1252b may overlap in the second direction (Y-axis direction), and the first magnet 1251a and the second magnet 1251b may overlap in the second direction (Y-axis direction).

[0218] With this configuration, as described above, the electromagnetic force applied to the outer surfaces of the prism holder (the first prism outer surface and the second prism outer surface) is positioned on a parallel axis in the second direction (Y-axis direction), so that X-axis tilt can be performed accurately and precisely.

[0219] In addition, the second protrusions PR2a and PR2b of the tilting guide part 1241 may contact the housing 1220. When performing X-axis tilt, the second protrusions PR2a and PR2b may be a reference axis (or a rotation axis) of the tilt. Therefore, the tilting guide part 1241 and the mover 1230 may move up and down.

[0220] Also, as described above, the first hall sensor 1253a may be located on the outside for electrical connection and coupling with the substrate part 1254. However, the location is not limited to this.

[0221] Also, the third coil 1252c may be located on the third housing side portion 1223, and the third magnet 1251c may be located on the third prism outer surface 1231S3 of the prism 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.

[0222] As described above, the tilting guide portion 1241 may be located on the fourth prism outer surface 1231S4 of the prism holder 1231. Also, the tilting guide portion 1241 may be mounted in the fourth mounting groove 1231S4a of the fourth prism outer surface. As described above, the fourth mounting groove 1231S4a may include the first region AR1, the second region AR2, and the third region AR3.

[0223] The first member 1231a is disposed in the first region AR1, and the first member 1231a may include a second protrusion groove PH2. The second protrusion groove PH2 may face the tilting guide part 1241 from the first member 1231a, i.e., may be located on a surface facing the tilting guide part 1241.

[0224] Also, the first member 1231a may be longer in the second direction (Y-axis direction) than the tilting guide part 1241. The first member 1231a may be mounted in the first region AR1. The first member 1231a may be mounted in the first region AR1 and rotated by being coupled with the mover 1230. The first member 1231a may be formed integrally with the mover 1230 or separately. With this configuration, the repulsive force RF2 generated in the first magnetic body 1242 may be transferred to the first member 1231a of the mover 1230 (RF2'). Therefore, the first member 1231a may apply a force to the tilting guide part 1241 in the same direction as the repulsive force RF2 generated in the first magnetic body 1242. The second protruding part PR2 of the tilting guide part 1241 may be received in the second protruding groove PH2. The second member 1226 may be disposed in the second region AR2. The second member 1226 may include a second groove gr2 facing the first groove gr1. The second member 1226 may also include a first protrusion groove PH1 disposed on the opposite side of the second groove gr2. The first protrusion groove PH1 and the first groove gr1 may overlap in the third direction (Z-axis direction). Accordingly, X-axis tilting may be performed accurately based on the first protrusion part PR1 accommodated in the first protrusion groove PH1.

[0225] Also, the first protrusion groove PH1 may receive the first protrusion portion PR1 of the tilting guide portion 1241. Therefore, the first protrusion portion PR1 may contact the first protrusion groove PH1. The first protrusion groove PH1 may have a maximum diameter corresponding to the maximum diameter of the first protrusion portion PR1. This may be equally applied to the second protrusion groove PH2 and the second protrusion portion PR2. That is, the second protrusion groove PH2 may have a maximum diameter corresponding to the maximum diameter of the second protrusion portion PR2. Also, therefore, the second protrusion portion PR2 may contact the second protrusion groove PH2. With this configuration, a first axis tilt based on the first protrusion portion PR1 and a second axis tilt based on the second protrusion portion PR2 may easily occur, and a tilt radius may be improved.

[0226] The tilting guide part 1241 may be disposed in the third region AR3. As described above, the tilting guide part 1241 may include the first protrusion part PR1 and the second protrusion part PR2. At this time, the first protrusion part PR1 and the second protrusion part PR2 may be disposed on the second surface 1241b and the first surface 1241a of the base BS, respectively. As described below, the first protrusion part PR1 and the second protrusion part PR2 may be variously positioned on the opposing surfaces of the base BS. In addition, it should be understood that the first protrusion groove PH1 and the second protrusion groove PH2 in which the first protrusion part PR1 and the second protrusion part PR2 are respectively accommodated may also be changed according to the shape and position of the first protrusion part PR1 and the second protrusion part PR2.

[0227] Also, the prism 1232 may at least partially overlap the tilting guide part 1241 in the first direction (X-axis direction). Also, the prism 1232 may overlap the first magnetic body 1242 and the second magnetic body 1243 in the first direction (X-axis direction). In other words, in the embodiment, the fourth mounting groove 1231S4a may overlap the prism 1232 in the first direction (X-axis direction). In this way, the camera actuator according to the embodiment can provide a structure suitable for miniaturization by minimizing the length of the fourth mounting groove 1231S4a in the third direction (Z-axis direction). Accordingly, the camera module including the camera actuator according to the embodiment can also be miniaturized. Also, the prism 1232 and the tilting guide part 1241 may be positioned adjacent to each other. In other words, the tilting guide part may be positioned adjacent to the center of gravity of the mover. As a result, the camera actuator of the embodiment can minimize the moment value that tilts the mover and can also minimize the amount of current consumed by the coil section, etc. to tilt the mover, thereby improving power consumption and element reliability.

[0228] FIG. 9 is a diagram illustrating a driving unit according to an embodiment.

[0229] 9, as described above, the driving unit 1250 includes a driving magnet 1251, a driving coil 1252, a Hall sensor unit 1253, and a substrate unit 1254.

[0230] As described above, the driving magnet 1251 may include the first magnet 1251a, the second magnet 1251b, and the third magnet 1251c that provide a driving force by electromagnetic force. The first magnet 1251a, the second magnet 1251b, and the third magnet 1251c may be located on the outer surface of the prism holder 1231, respectively.

[0231] Additionally, the drive coil 1252 may include multiple coils. In some embodiments, the drive coil 1252 may include a first coil 1252a, a second coil 1252b, and a third coil 1252c.

[0232] The first coil 1252a may be positioned to face the first magnet 1251a. Therefore, the first coil 1252a may be positioned in the first housing hole 1221a of the first housing side portion 1221 as described above. Also, the second coil 1252b may be positioned to face the second magnet 1251b. Therefore, the second coil 1252b may be positioned in the second housing hole 1222a of the second housing side portion 1222 as described above.

[0233] The second camera actuator of the embodiment controls the rotation of the mover 1230 along the first axis (X-axis direction) or the second axis (Y-axis direction) using the electromagnetic force between the driving magnet 1251 and the driving coil 1252, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics.

[0234] In addition, according to the embodiment, by implementing the OIS through the tilting guide portion 1241 of the rotating portion 1240 disposed between the housing 1220 and the mover 1230, it is possible to eliminate the size limitation of the actuator and provide an ultra-slim and ultra-compact camera actuator and a camera module including the same.

[0235] The substrate portion 1254 can include a first substrate side 1254a, a second substrate side 1254b, and a third substrate side 1254c.

[0236] The first substrate side 1254a and the second substrate side 1254b can be disposed opposite each other, and the third substrate side 1254c can be located between the first substrate side 1254a and the second substrate side 1254b.

[0237] Also, the first board side 1254a may be located between the first housing side and the shielding can, the second board side 1254b may be located between the second housing side and the shielding can, and the third board side 1254c may be located between the third housing side and the shielding can, and may be the bottom surface of the board portion 1254.

[0238] The first substrate side 1254a may be coupled and electrically connected to the first coil 1252a, and the first substrate side 1254a may be coupled and electrically connected to the first Hall sensor 1253a.

[0239] The second substrate side 1254b may be coupled and electrically connected to the second coil 1252b. It should be understood that the second substrate side 1254b may also be coupled and electrically connected to the first Hall sensor.

[0240] The third substrate side portion 1254c may be coupled and electrically connected to the third coil 1252c and the second Hall sensor 1253b.

[0241] FIG. 10a is a perspective view of a second camera actuator according to an embodiment, FIG. 10b is a cross-sectional view taken along line DD' in FIG. 10a, and FIG. 10c is an example view showing the movement of the second camera actuator shown in FIG. 10b.

[0242] 10a to 10c, Y-axis tilt can be performed, i.e., OIS can be realized by rotating in a first direction (X-axis direction).

[0243] As an example, a third magnet 1251c disposed under the prism holder 1231 can generate electromagnetic force together with a third coil 1252c to tilt or rotate the mover 1230 based on the second direction (Y-axis direction).

[0244] Specifically, the repulsive force between the first magnetic body 1242 and the second magnetic body 1243 may be transmitted to the first member 1231a and the second member 1226, and then transmitted to the tilting guide unit 1241 disposed between the first member 1231a and the second member 1226. Accordingly, the tilting guide unit 1241 may be coupled to the mover 1230 and the housing 1220 by the repulsive force.

[0245] The second protrusion PR2 may be supported by the first member 1231a. In this case, as an embodiment, the tilting guide part 1241 may rotate or tilt with the second protrusion PR2 protruding toward the first member 1231a as a reference axis (or rotation axis), that is, with the second direction (Y-axis direction) as a reference. In other words, the tilting guide part 1241 may rotate or tilt in the first direction (X-axis direction) with the second protrusion PR2 protruding toward the first member 1231a as a reference axis (or rotation axis).

[0246] For example, the mover 1230 may be rotated at the first angle θ1 (X1->X1a) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1251c arranged in the third mounting groove and the third coil 1252c arranged on the side of the third substrate, thereby realizing the OIS. Also, the mover 1230 may be rotated at the first angle θ1 (X1->X1b) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1251c arranged in the third mounting groove and the third coil 1252c arranged on the side of the third substrate, thereby realizing the OIS. The first angle θ1 may be ±1° to ±3°. However, the present invention is not limited thereto.

[0247] FIG. 11a is a perspective view of a second camera actuator according to an embodiment, FIG. 11b is a cross-sectional view taken along line EE' in FIG. 11a, and FIG. 11c is an exemplary view showing the movement of the second camera actuator shown in FIG. 11b.

[0248] 11a to 11c, X-axis tilting may be performed, that is, the mover 1230 may be tilted or rotated in the Y-axis direction to realize OIS.

[0249] As an example, the first magnet 1251a and the second magnet 1251b arranged in the prism holder 1231 can form electromagnetic forces with the first coil 1252a and the second coil 1252b, respectively, to tilt or rotate the tilting guide part 1241 and the mover 1230 based on the first direction (X-axis direction).

[0250] Specifically, the repulsive force between the first magnetic body 1242 and the second magnetic body 1243 may be transmitted to the first member 1231a and the second member 1226, and then transmitted to the tilting guide unit 1241 disposed between the first member 1231a and the second member 1226. Accordingly, the tilting guide unit 1241 may be coupled to the mover 1230 and the housing 1220 by the repulsive force.

[0251] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be spaced apart in the first direction (X-axis direction) and supported by the second member 1226. In addition, in this embodiment, the tilting guide part 1241 may rotate or tilt with the first protrusion PR1 protruding toward the second member 1226 as a reference axis (or rotation axis), that is, with the first direction (X-axis direction) as a reference.

[0252] In other words, the tilting guide portion 1241 can rotate or tilt in the second direction (Y-axis direction) with the first protrusion portion PR1 protruding toward the second member 1226 as a reference axis (or rotation axis).

[0253] For example, the mover 1230 may be rotated at the second angle θ2 (Y1->Y1a) in the Y-axis direction by the second electromagnetic force F2A, F2B between the first and second magnets 1251a, 1251b arranged in the first mounting groove and the first and second coils 1252a, 1252b arranged on the sides of the first and second substrates, thereby realizing the OIS. Also, the mover 1230 may be rotated at the second angle θ2 (Y1->Y1b) in the Y-axis direction by the second electromagnetic force F2A, F2B between the first and second magnets 1251a, 1251b arranged in the first mounting groove and the first and second coils 1252a, 1252b arranged on the sides of the first and second substrates, thereby realizing the OIS. The second angle θ2 may be ±1° to ±3°. However, it is not limited thereto.

[0254] In this manner, the second actuator according to the embodiment rotates the mover 1230 in a first direction (X-axis direction) or a second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the prism holder and the driving coil disposed in the housing, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" means rotating or tilting in the first direction (X-axis direction), and "X-axis tilt" means rotating or tilting in the second direction (Y-axis direction).

[0255] In addition, as described above, in the embodiment, the prism 1232 and the tilting guide unit 1241 are positioned adjacent to each other, so that the tilting guide unit can be disposed adjacent to the center of gravity of the mover. Therefore, the camera actuator according to the embodiment can minimize the moment value that tilts the mover, and can also minimize the consumption of the current applied to the coil unit, etc., to tilt the mover, thereby improving the power consumption and reliability of the element.

[0256] FIG. 12a is an exploded perspective view of a second camera actuator according to the second embodiment, and FIG. 12b is a perspective view of a housing according to the second embodiment.

[0257] 12a and 12b, a second camera actuator 1200 according to the embodiment includes a shield can 1210, a housing 1220, a mover 1230, a rotating section 1240, a driving section 1250, a first member 1231a, and a second member 1226.

[0258] The mover 1230 may include a prism holder 1231 and a prism 1232 mounted on the prism holder 1231. The rotation unit 1240 may include a tilting guide unit 1241, a first magnetic body 1242 and a second magnetic body 1243 having different polarities so as to apply pressure to the tilting guide unit 1241. The driving unit 1250 may include a driving magnet 1251, a driving coil 1252, a Hall sensor unit 1253, a substrate unit 1254, and a yoke unit 1255.

[0259] First, the shielding can 1210 may be positioned at the outermost side of the second camera actuator 1200 to surround a rotating part 1240 and a driving part 1250, which will be described later.

[0260] Such a shielding can 1210 can block or reduce electromagnetic waves generated from the outside, that is, the shielding can 1210 can reduce the occurrence of malfunctions in the rotating part 1240 or the driving part 1250.

[0261] The housing 1220 may be positioned inside the shielding can 1210. Also, the housing 1220 may be positioned inside a substrate unit 1254, which will be described later. The housing 1220 and the shielding can 1210 may be fastened to each other by being inserted or mated with each other.

[0262] The housing 1220 can include a first housing side 1221 , a second housing side 1222 , a third housing side 1223 , and a fourth housing side 1224 .

[0263] The second member 1226 may be disposed in the housing 1220. The second member 1226 may be disposed or included in the housing. And, the second member 1226 may be coupled to the housing 1220. As an example, the second member 1226 may be located between the third housing hole 1223a and the fourth housing side 1224. And, the second member 1226 may be coupled to the third housing side 1223 by passing through the housing groove 1223b′ formed in the third housing side 1223.

[0264] Therefore, the second member 1226 is coupled to the housing 1220 and can be fixed even when the mover 1230, which will be described later, is tilted. Also, the second groove gr2 in which the second magnetic body 1243 is mounted is included. Accordingly, the second member 1226 can fix the position of the second magnetic body 1243 and prevent a change in the supporting force due to a repulsive force. Also, the second member 1226 can be formed integrally with the housing 1220 or separately. When the second member 1226 is formed integrally with the housing 1220, the coupling force between the second member 1226 and the housing 1220 can be improved, and the reliability of the camera actuator can be improved. Also, when the second member 1226 is formed separately, the assembly and ease of manufacture of the second member 1226 and the housing 1220 can be improved. The following description will be based on the case where the second member 1226 is separated. The first housing side 1221 and the second housing side 1222 can be arranged to face each other. Also, the third housing side 1223 and the fourth housing side 1224 can be arranged to face each other.

[0265] And the third housing side 1223 and the fourth housing side 1224 can be disposed between the first housing side 1221 and the second housing side 1222.

[0266] The third housing side 1223 may be in contact with the first housing side 1221, the second housing side 1222, and the fourth housing side 1224. The third housing side 1223 may be a bottom surface of the housing 1220. The above description regarding the direction may also be applied in the same manner.

[0267] The first housing side portion 1221 may include a first housing hole 1221a, in which a first coil 1252a (described later) may be located.

[0268] In addition, the second housing side portion 1222 may include a second housing hole 1222a, in which a second coil 1252b (described later) may be located.

[0269] The first coil 1252a and the second coil 1252b may be coupled to the substrate unit 1254. As an example, the first coil 1252a and the second coil 1252b may be electrically connected to the substrate unit 1254 so that a current may flow therethrough. This current is an element of electromagnetic force that allows the second camera actuator to tilt with respect to the X-axis.

[0270] Additionally, the third housing side 1223 may include a third housing hole 1223a and a housing groove 1223b'.

[0271] A third coil 1252c, which will be described later, may be positioned in the third housing hole 1223a. The third coil 1252c may be coupled to the substrate part 1254. The third coil 1252c may be electrically connected to the substrate part 1254 so that a current may flow through the third coil 1252c. This current is an element of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.

[0272] A first member 1231a, which will be described later, can be mounted in the housing groove 1223b'. Accordingly, the first member 1231a can be coupled to the third housing side portion 1223. In the first embodiment, the first member 1231a is described as being easily coupled to the housing 1220 through the 3-2 housing hole, but below, the first member 1231a can be mounted in a housing groove formed by a protrusion or the like and coupled to the housing 1220.

[0273] The fourth housing side 1224 is disposed between the first housing side 1221 and the second housing side 1222 and can contact the first housing side 1221, the second housing side 1222 and the third housing side 1223.

[0274] In addition, the housing 1220 may include a receiving portion 1225 formed by the first housing side portion 1221 to the fourth housing side portion 1224. The receiving portion 1225 may include a second member 1226, a first member 1231a, and a prism holder 1231 as components. In addition, the housing 1220 may further include a fifth housing side portion facing the fourth housing side portion 1224. In addition, the fifth housing side portion may be disposed between the first housing side portion 1221 and the second housing side portion 1222, and may contact the first housing side portion 1221, the second housing side portion 1222, and the third housing side portion 1223. In addition, the fifth housing side portion may include an opening region and provide a path along which the light reflected by the prism 1232 moves. In addition, the fifth housing side portion may include a protrusion or a groove, etc., and may provide easy coupling with another adjacent camera actuator. This configuration provides an optical path and improves the bonding strength between the fifth housing side portion in which the opening providing the optical path is formed and other components, thereby suppressing movement of the opening due to separation, etc., and minimizing changes in the optical path.

[0275] The mover 1230 includes a prism holder 1231 and a prism 1232 mounted in the prism holder 1231. First, the prism holder 1231 may be mounted in the receiving portion 1225 of the housing 1220. The prism holder 1231 may include a first prism outer surface to a fourth prism outer surface corresponding to the first housing side portion 1221, the second housing side portion 1222, the third housing side portion 1223, and the fourth housing side portion 1224, respectively. In addition, the prism holder 1231 may include a first member 1231a disposed in a fourth mounting groove of the fourth prism outer surface. This will be described in detail later. The first member 1231a may include a second protrusion groove PH2 formed on a surface of the prism holder 1231 facing the fourth mounting groove. A second protrusion of the tilting guide portion 1241 described later may be mounted in the second protrusion groove PH2.

[0276] The prism 1232 may be mounted in the prism holder 1231. To this end, the prism holder 1231 may have a mounting surface, and the mounting surface may be formed by a receiving groove. In an embodiment, the prism 1232 may be a mirror. Although the following will be illustrated based on a mirror, the prism 1232 may be made of a plurality of lenses as in the above embodiment. For example, the prism 1232 may include a reflecting portion disposed therein. However, the present invention is not limited thereto. The prism 1232 may reflect light reflected from the outside (e.g., an object) to the inside of the camera module. In other words, the prism 1232 may change the path of the reflected light to improve the spatial limitations of the first and second camera actuators. It should be understood that the camera module may thus provide a high range of magnification by expanding the light path while minimizing the thickness.

[0277] Further, the first member 1231a may be combined with the prism holder 1231. The first member 1231a may contact a protrusion located in an area other than the fourth mounting groove on an outer surface of the fourth prism of the prism holder 1231. The first member 1231a may be formed integrally with the prism holder 1231. Alternatively, the first member 1231a may be formed as a structure separated from the prism holder 1231.

[0278] The rotating part 1240 includes a tilting guide part 1241, and a first magnetic body 1242 and a second magnetic body 1243 having mutually different polarities so as to apply pressure to the tilting guide part 1241.

[0279] The tilting guide part 1241 may be coupled to the mover 1230 and the housing 1220 described above. Specifically, the tilting guide part 1241 may be disposed between the first member 1231a and the second member 1226 and coupled to the mover 1230 and the housing 1220. Accordingly, the fourth housing side part 1224, the first member 1231a, the tilting guide part 1241, the second member 1226, and the prism holder 1231 may be arranged in this order in the third direction (Z-axis direction).

[0280] The tilting guide unit 1241 may be disposed adjacent to the optical axis, so that the actuator according to the embodiment can easily change the optical path by tilting on the first and second axes, which will be described later.

[0281] The tilting guide part 1241 may include a base, a first protrusion disposed on the base in a first direction (X-axis direction) and a second protrusion disposed on the base in a second direction (Y-axis direction). The first protrusion and the second protrusion may protrude in opposite directions. This will be described in detail later.

[0282] The first magnetic body 1242 may be mounted on the fourth mounting groove 1231S4a of the prism holder 1231. Specifically, the first magnetic body 1242 may be mounted on the first groove of the fourth mounting groove.

[0283] The second magnetic body 1243 may be mounted in the second member 1226. As an example, the second magnetic body 1243 may be mounted in the second groove gr2 of the second member 1226.

[0284] Also, the first magnetic body 1242 and the second magnetic body 1243 may have the same polarity. For example, the first magnetic body 1242 may be a magnet having a north pole, and the second magnetic body 1243 may be a magnet having a north pole. Or, conversely, the first magnetic body 1242 may be a magnet having a south pole, and the second magnetic body 1243 may be a magnet having a south pole.

[0285] The first magnetic body 1242 and the second magnetic body 1243 can generate a repulsive force between each other due to the above-mentioned polarity. With this configuration, the above-mentioned repulsive force can be applied to the prism holder 1231 coupled to the first magnetic body 1242 and the second member 1226 or the housing 1220 coupled to the second magnetic body 1243. The repulsive force applied to the prism holder 1231 can also be transmitted to the first member 1231a. As a result, the tilting guide part 1241 disposed between the first member 1231a and the second member 1226 can be pressed by the repulsive force. That is, the repulsive force can maintain the force that the tilting guide part 1241 is positioned between the first member 1231a and the second member 1226. This will be described in detail later.

[0286] Also, the second member 1226 may include extensions extending in the first direction from both sides in the second direction (Y-axis direction). Such extensions may be coupled to the first housing side 1221 and the second housing side 1222. As described above, the coupling method may be achieved by fastening using a protrusion and a groove. The second member 1226 may be mounted in the housing groove 1223b' and coupled to the housing 1220, and may also be coupled to the first member 1231a and the mover 1230 that at least partially overlap the second member 1226 in the first direction. As a result, the coupling force between the components may be improved, and the reliability of the camera actuator may be improved.

[0287] The driving portion 1250 includes a driving magnet 1251 , a driving coil 1252 , a Hall sensor portion 1253 , a yoke portion 1255 and a substrate portion 1254 .

[0288] The driving magnet 1251 may include a plurality of magnets. In one embodiment, the driving magnet 1251 may include a first magnet 1251a, a second magnet 1251b, and a third magnet 1251c.

[0289] The first magnet 1251a, the second magnet 1251b, and the third magnet 1251c may be positioned on the outer surface of the prism holder 1231. The first magnet 1251a and the second magnet 1251b may be positioned to face each other. The third magnet 1251c may be positioned on the bottom surface of the outer surface of the prism holder 1231. This will be described in detail later.

[0290] The drive coil 1252 can include multiple coils. As an example, the drive coil 1252 can include a first coil 1252a, a second coil 1252b, and a third coil 1252c.

[0291] The first coil 1252a may be positioned to face the first magnet 1251a. Therefore, as described above, the first coil 1252a may be positioned in the first housing hole 1221a of the first housing side portion 1221. When a current flows through the first coil 1252a, the first magnet 1251a may generate a force that reflects the magnetic field generated by the first coil 1252a.

[0292] Also, the second coil 1252b may be positioned to face the second magnet 1251b. Therefore, as described above, the second coil 1252b may be positioned in the second housing hole 1222a of the second housing side portion 1222. When a current flows through the second coil 1252b, the second magnet 1251b may generate a force that reflects the magnetic field generated by the second coil 1252b.

[0293] The first coil 1252a may be positioned to face the second coil 1252b. That is, the first coil 1252a may be positioned symmetrically with respect to the first direction (X-axis direction) with respect to the second coil 1252b. This can be applied to the first magnet 1251a and the second magnet 1251b in the same manner. That is, the first magnet 1251a and the second magnet 1251b may be positioned symmetrically with respect to the first direction (X-axis direction). Also, the first coil 1252a, the second coil 1252b, the first magnet 1251a, and the second magnet 1251b may be positioned to overlap at least partially in the second direction (Y-axis direction). With this configuration, X-axis tilting can be accurately performed without tilting 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.

[0294] The third coil 1252c may be positioned to face the third magnet 1251c. Therefore, as described above, the third coil 1252c may be positioned in the third housing hole 1223a of the third housing side portion 1223. The third coil 1252c generates electromagnetic force with the third magnet 1251c, thereby allowing the mover 1230 and the rotating part 1240 to perform Y-axis tilting with respect to the housing 1220.

[0295] The hall sensor unit 1253 may include a plurality of hall sensors. As an embodiment, the hall sensor unit 1253 may include a first hall sensor 1253a and a second hall sensor 1253b. The first hall sensor 1253a may be located inside the first coil 1252a or the second coil 1252b. The first hall sensor 1253a may detect a change in magnetic flux inside the first coil 1252a or the second coil 1252b. Thus, position sensing between the first and second magnets 1251a and 1251b and the first hall sensor 1253a may be performed. The second camera actuator according to the embodiment may control the X-axis tilt through this. Also, the first hall sensor 1253a may be a plurality of sensors.

[0296] Also, the second Hall sensor 1253b may be located inside the third coil 1252c. The second Hall sensor 1253b may detect a change in magnetic flux inside the third coil 1252c. Thus, position sensing between the third magnet 1251c and the second Hall sensor 1253b may be performed. The second camera actuator according to the embodiment may control the Y-axis tilt through this.

[0297] The substrate unit 1254 may be located under the driving unit 1250. The substrate unit 1254 may be electrically connected to the driving coil 1252 and the Hall sensor unit 1253. For example, the substrate unit 1254 may be coupled to the driving coil 1252 and the Hall sensor unit 1253 by SMT. However, the present invention is not limited to this method.

[0298] The substrate part 1254 is located between the shield can 1210 and the housing 1220, and can be coupled to the shield can 1210 and the housing 1220. As described above, various coupling methods can be used.

[0299] In addition, the substrate unit 1254 may be formed in various shapes for electrical connection with another camera actuator coupled to the second camera actuator described herein. For example, the substrate unit 1254 may include a substrate hole 1254h and may be coupled to a side of a housing (e.g., a first housing side, a second housing side) through the substrate hole 1254h. The driving coil 1252 and the hall sensor unit 1253 may be positioned within the outer surface of the housing 1220 through the coupling.

[0300] The substrate unit 1254 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid PCB, a flexible PCB, a rigid flexible PCB, etc. However, the substrate unit 1254 is not limited to these types.

[0301] The yoke portion 1255 may include a first yoke 1255a, a second yoke 1255b, and a third yoke 1255c.

[0302] The first yoke 1255a may be disposed on the first magnet 1251a. Also, the first yoke 1255a may be mounted in the first mounting groove 1231S1a. The first yoke 1255a is coupled with the first magnet 1251a, so that the first magnet 1251a may be easily mounted in the first mounting groove 1231S1a. Accordingly, the coupling force between the first magnet 1251a and the prism holder 1231 may be improved, thereby improving the reliability of the camera actuator.

[0303] Similarly, the second yoke 1255b may be disposed on the second magnet 1251b. The second yoke 1255b may be mounted in the second mounting groove 1231S2a. The second yoke 1255b may be coupled with the second magnet 1251b so that the second magnet 1251b may be easily mounted in the second mounting groove 1231S2a. As a result, the coupling force between the second magnet 1251b and the prism holder 1231 may be increased, thereby improving the reliability of the camera actuator.

[0304] The third yoke 1255c may be disposed on the third magnet 1251c. Also, the third yoke 1255c may be mounted in the third mounting groove 1231S3a and coupled to the third magnet 1251c. Accordingly, the coupling force between the third magnet 1251c and the prism holder 1231 may be increased, thereby improving the reliability of the camera actuator.

[0305] FIG. 13a is a perspective view of the prism holder according to the embodiment, FIG. 13b is a bottom view of the prism holder according to the embodiment, and FIG. 13c is a side view of the prism holder according to the embodiment.

[0306] 13a to 13c, the prism holder 1231 may include a mounting surface 1231k on which the prism 1232 is mounted. The mounting surface 1231k may be an inclined surface. The prism holder 1231 may also include a step 1231b on the upper part of the mounting surface 1231k. The step 1231b of the prism holder 1231 may be coupled to the protrusion 1232a of the prism 1232.

[0307] Also, the prism holder 1231 may include a plurality of outer surfaces. The prism holder 1231 may include a first prism outer surface 1231S1, a second prism outer surface 1231S2, a third prism outer surface 1231S3, and a fourth prism outer surface 1231S4.

[0308] The first prism outer side surface 1231S1 may be positioned to face the second prism outer side surface 1231S2. That is, the first prism outer side surface 1231S1 may be disposed symmetrically with the second prism outer side surface 1231S2 with respect to the first direction (X-axis direction).

[0309] The first prism outer surface 1231S1 may be positioned to correspond to the first housing side 1221. That is, the first prism outer surface 1231S1 may be positioned to face the first housing side. And, the second prism outer surface 1231S2 may be positioned to face the second housing side 1222.

[0310] In addition, the first prism outer side surface 1231S1 may include a first mounting groove 1231S1a. And, the second prism outer side surface 1231S2 may include a second mounting groove 1231S2a. The first mounting groove 1231S1a and the second mounting groove 1231S2a may be disposed symmetrically with respect to each other with respect to the first direction (X-axis direction).

[0311] In addition, the first mounting groove 1231S1a and the second mounting groove 1231S2a may be disposed to overlap in the second direction (Y-axis direction).

[0312] A first magnet 1251a may be disposed in the first mounting groove 1231S1a, and a second magnet 1251b may be disposed in the second mounting groove 1231S2a. The first magnet 1251a and the second magnet 1251b may also be disposed symmetrically with respect to the first direction (X-axis direction).

[0313] As described above, depending on the positions of the first and second mounting grooves and the first and second magnets, the electromagnetic forces induced by each magnet can be provided on the same axis to the first prism outer surface 1231S1 and the second prism outer surface 1231S2. For example, the area on the first prism outer surface 1231S1 where the electromagnetic force is applied (e.g., the area where the electromagnetic force is strongest) and the area on the second prism outer surface 1231S2 where the electromagnetic force is applied (e.g., the area where the electromagnetic force is strongest) can be located on an axis parallel to the second direction (Y-axis direction). This allows X-axis tilting to be performed accurately.

[0314] A first magnet 1251a may be disposed in the first mounting groove 1231S1a, and a second magnet 1251b may be disposed in the second mounting groove 1231S2a.

[0315] The third prism outer surface 1231S3 may be in contact with the first prism outer surface 1231S1 and the second prism outer surface 1231S2 and may be an outer surface extending in the second direction (Y-axis direction) from one side of the first prism outer surface 1231S1 and the second prism outer surface 1231S2. Also, the third prism outer surface 1231S3 may be located between the first prism outer surface 1231S1 and the second prism outer surface 1231S2. The third prism outer surface 1231S3 may be a bottom surface of the prism holder 1231.

[0316] Also, the third prism outer surface 1231S3 may include a third mounting groove 1231S3a. A third magnet 1251c may be disposed in the third mounting groove 1231S3a. The third prism outer surface 1231S3 may be positioned to face the third housing side portion 1223. Also, the third housing hole 1223a may at least partially overlap the third mounting groove 1231S3a in the first direction (X-axis direction). Accordingly, the third magnet 1251c in the third mounting groove 1231S3a and the third coil 1252c in the third housing hole 1223a may be positioned to face each other. And, the third magnet 1251c and the third coil 1252c generate an electromagnetic force, so that the second camera actuator can tilt in the Y-axis direction.

[0317] Also, while X-axis tilt is performed by multiple magnets (first and second magnets 1251a and 1251b), Y-axis tilt can be performed only by the third magnet 1251c. In an embodiment, the third mounting groove 1231S3a may be wider than the first mounting hole 1231S1a or the second mounting hole 1231S2a. With this configuration, Y-axis tilt can be performed by current control similar to X-axis tilt.

[0318] The fourth prism outer side surface 1231S4 may be an outer side surface that contacts the first prism outer side surface 1231S1 and the second prism outer side surface 1231S2 and extends in the first direction (X-axis direction) from the first prism outer side surface 1231S1 and the second prism outer side surface 1231S2. Also, the fourth prism outer side surface 1231S4 may be located between the first prism outer side surface 1231S1 and the second prism outer side surface 1231S2.

[0319] The fourth prism outer surface 1231S4 may include a fourth mounting groove 1231S4a. The tilting guide part 1241 may be positioned in the fourth mounting groove 1231S4a. Also, the first member 1231a and the second member 1226 may be positioned in the fourth mounting groove 1231S4a. Also, the fourth mounting groove 1231S4a may include a plurality of regions. It may include a first region AR1, a second region AR2, and a third region AR3.

[0320] The first member 1231a may be located in the first region AR1. That is, the first region AR1 may overlap with the first member 1231a in the first direction (X-axis direction).

[0321] The second region AR2 may be located in the second member 1226. That is, the second region AR2 may overlap with the second member 1226 in the first direction (X-axis direction).

[0322] The tilting guide part 1241 may be located in the third region AR3. That is, the third region AR3 may overlap the tilting guide part 1241 in the first direction (X-axis direction). Also, the third region AR3 may be located between the first region AR1 and the second region AR2.

[0323] In this embodiment, the first region AR1, the second region AR2, and the third region AR3 may have different heights in the first direction (X-axis direction). As an example, the first region AR1, the third region AR3, and the second region AR2 may have heights that decrease in the order in the first direction (X-axis direction). Therefore, the first region AR1, the third region AR3, and the second region AR2 may have steps between each of the regions.

[0324] In addition, the height of the first member 1231a mounted in the first region AR1 may be the greatest in the first direction, and the first member 1231a may be supported by the step between the first region AR1 and the third region AR3 and may be integrally connected to the mover 1230 and moved.

[0325] In addition, the fourth mounting groove 1231S4a may include a first groove gr1. The above-mentioned first magnetic bodies 1242 may be mounted in the first groove gr1. In addition, the first groove gr1 may be plural in number according to the number of the first magnetic bodies 1242. That is, the number of the first grooves gr1 may correspond to the number of the first magnetic bodies 1242.

[0326] In addition, in the embodiment, the second region AR2 may be disposed spaced apart from the first region AR1 and the third region AR3 in the third direction (Z-axis direction).

[0327] 14a is a perspective view of the tilting guide part according to the embodiment, FIG. 14b is a perspective view of the tilting guide part in a direction different from that of FIG. 14a, and FIG. 14c is a cross-sectional view of the tilting guide part taken along line FF' in FIG. 14a.

[0328] 14a to 14c, the tilting guide part 1241 according to the embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1241a of the base BS, and a second protrusion PR2 protruding from a second surface 1241b of the base BS. Also, as described above, the first protrusion and the second protrusion may be formed on opposite surfaces depending on the structure, but the following description will be based on the above content.

[0329] First, the base BS may include a first surface 1241a and a second surface 1241b facing the first surface 1241a. That is, the first surface 1241a may be spaced apart from the second surface 1241b in the third direction (Z-axis direction) and may be outer surfaces facing each other or facing each other within the tilting guide part 1241.

[0330] The tilting guide portion 1241 may include a first protrusion PR1 extending to one side from the first surface 1241a. According to an embodiment, the first protrusion PR1 may protrude from the first surface 1241a toward the mover. The first protrusion PR1 may be a plurality of protrusions, including a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

[0331] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). In other words, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). In addition, in the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by a virtual line extending in the first direction (X-axis direction).

[0332] In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature, for example, a hemispherical shape, and may contact the first groove gr1 of the housing at a point farthest from the first surface 1241a of the base BS.

[0333] In addition, the tilting guide portion 1241 may include a second protrusion portion PR2 extending to one side from the second surface 1241b. According to an embodiment, the second protrusion portion PR2 may protrude from the second surface 1241b toward the housing. The second protrusion portion PR2 may be a plurality of protrusions, and may include a 2-1 protrusion portion PR2a and a 2-2 protrusion portion PR2b in an embodiment.

[0334] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). In addition, in the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be bisected by a fourth virtual line VL2' extending in the second direction (Y-axis direction).

[0335] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may have a curvature, for example, a hemispherical shape, and may contact the first member 1231a at a point away from the second surface 1241b of the base BS.

[0336] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be located in the center of the space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. With this configuration, the actuator according to the embodiment may have the same range of X-axis tilt angles based on the X-axis. In other words, the tilting guide unit 1241 may provide the same range (e.g., positive / negative range) in which the mover can tilt in the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b based on the X-axis.

[0337] Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be located in the center of the space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. With this configuration, the actuator according to the embodiment may have the same range of Y-axis tilt angles based on the Y axis. In other words, the tilting guide unit 1241 and the mover may provide the same range (e.g., positive / negative range) in which the Y-axis tilt can be performed based on the Y axis based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b.

[0338] The first protrusion PR1 may be located on the first virtual line VL1. Here, the first virtual line VL1 is a line that bisects the first surface 1241a in the second direction (Y-axis direction). Accordingly, the tilting guide part 1241 can easily perform X-axis tilt through the first protrusion PR1. In addition, since the tilting guide part 1241 performs X-axis tilt based on the first virtual line VL1, a rotational force can be uniformly applied to the tilting guide part 1241. Therefore, the X-axis tilt can be performed precisely, and the reliability of the element can be improved.

[0339] Also, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be disposed symmetrically with respect to the first virtual line VL1 and the second virtual line VL2. Or, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned symmetrically with respect to the first center point C1. With this configuration, the supporting force supported by the first protrusion PR1 during X-axis tilting may be equally applied to the upper and lower sides with respect to the second virtual line VL2. Therefore, the reliability of the tilting guide part may be improved. Here, the second virtual line VL2 is a line that bisects the first surface 1241a in my first direction (X-axis direction). And, the first center point C1 may be the intersection of the first virtual line VL1 and the second virtual line VL2. Or, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide part 1241.

[0340] Furthermore, since the tilting guide part 1241 performs the Y-axis tilt based on the fourth virtual line VL2', a rotational force can be uniformly applied to the tilting guide part 1241. Therefore, the Y-axis tilt can be precisely performed, and the reliability of the device can be improved.

[0341] Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be disposed symmetrically with respect to the third virtual line VL1' on the fourth virtual line VL2'. Or, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned symmetrically with respect to the second center point C1'. With this configuration, the supporting force supported by the second protrusion PR2 during Y-axis tilting may be equally applied to the upper and lower sides of the tilting guide section with respect to the fourth virtual line VL2'. Therefore, the reliability of the tilting guide section may be improved. Here, the third virtual line VL1' is a line that bisects the second surface 1241b in the second direction (Y-axis direction). The fourth virtual line VL2' is a line that bisects the second surface 1241b in the first direction (X-axis direction). And, the second center point C1' may be an intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, it may be a point corresponding to the center of gravity depending on the shape of the tilting guide portion 1241.

[0342] The first protrusion PR1 and the second protrusion PR2 may be the same as those described above. The shape of the base BS may be variously changed depending on the weight or fastening structure of the camera actuator.

[0343] Figure 15a is an oblique view of a second camera actuator in an embodiment with the shielding can and substrate removed, Figure 15b is a cross-sectional view taken at GG' in Figure 15a, and Figure 15c is a cross-sectional view taken at HH' in Figure 15a.

[0344] 15a to 15c, the first coil 1252a may be located on the first housing side portion 1221, and the first magnet 1251a may be located on the first prism outer surface 1231S1 of the prism holder 1231. Therefore, the first coil 1252a and the first magnet 1251a may be located facing each other. The first magnet 1251a may at least partially overlap the first coil 1252a in the second direction (Y-axis direction).

[0345] Also, the second coil 1252b may be located on the second housing side portion 1222, and the second magnet 1251b may be located on the second prism outer surface 1231S2 of the prism holder 1231. Therefore, the second coil 1252b and the second magnet 1251b may be located facing each other. The second magnet 1251b may at least partially overlap the second coil 1252b in the second direction (Y-axis direction).

[0346] Furthermore, the first coil 1252a and the second coil 1252b may overlap in the second direction (Y-axis direction), and the first magnet 1251a and the second magnet 1251b may overlap in the second direction (Y-axis direction).

[0347] With this configuration, the electromagnetic force applied to the outer surfaces (first prism outer surface and second prism outer surface) of the prism holder is positioned on a parallel axis in the second direction (Y-axis direction), so that X-axis tilt can be performed accurately and precisely.

[0348] In addition, the second protrusions PR2a and PR2b of the tilting guide part 1241 may contact the housing 1220. When performing X-axis tilt, the second protrusions PR2a and PR2b may be a reference axis (or a rotation axis) of the tilt. Therefore, the tilting guide part 1241 and the mover 1230 may move up and down.

[0349] Also, as described above, the first hall sensor 1253a may be located on the outside for electrical connection and coupling with the substrate part 1254. However, the location is not limited to this.

[0350] Also, the third coil 1252c may be located on the third housing side portion 1223, and the third magnet 1251c may be located on the third prism outer surface 1231S3 of the prism 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.

[0351] As described above, the tilting guide portion 1241 may be located on the fourth prism outer surface 1231S4 of the prism holder 1231. Also, the tilting guide portion 1241 may be mounted in the fourth mounting groove 1231S4a of the fourth prism outer surface. As described above, the fourth mounting groove 1231S4a may include the first region AR1, the second region AR2, and the third region AR3.

[0352] The first member 1231a is disposed in the first region AR1, and the first member 1231a may include a second protrusion groove PH2. The second protrusion groove PH2 may face the tilting guide part 1241 from the first member 1231a, i.e., may be located on a surface facing the tilting guide part 1241.

[0353] Also, the first member 1231a may be longer in the second direction (Y-axis direction) than the tilting guide part 1241. The first member 1231a may be mounted in the first region AR1. The first member 1231a may be mounted in the first region AR1 and rotated by being coupled with the mover 1230. The first member 1231a may be formed integrally with the mover 1230 or separately. With this configuration, the repulsive force RF2 generated in the first magnetic body 1242 may be transferred to the first member 1231a of the mover 1230 (RF2'). Therefore, the first member 1231a may apply a force to the tilting guide part 1241 in the same direction as the repulsive force RF2 generated in the first magnetic body 1242. The second protruding groove PH2 may accommodate the second protruding part PR2 of the tilting guide part 1241.

[0354] A second member 1226 may be disposed in the second region AR2. The second member 1226 may include a second groove gr2 facing the first groove gr1. The second member 1226 may also include a first protrusion groove PH1 disposed on the opposite side of the second groove gr2. The first protrusion groove PH1 and the first groove gr1 may overlap in the third direction (Z-axis direction). Accordingly, X-axis tilting may be accurately performed based on the first protrusion part PR1 accommodated in the first protrusion groove PH1.

[0355] Also, the first protrusion groove PH1 may receive the first protrusion portion PR1 of the tilting guide portion 1241. Therefore, the first protrusion portion PR1 may contact the first protrusion groove PH1. The first protrusion groove PH1 may have a maximum diameter corresponding to the maximum diameter of the first protrusion portion PR1. This may be equally applied to the second protrusion groove PH2 and the second protrusion portion PR2. That is, the second protrusion groove PH2 may have a maximum diameter corresponding to the maximum diameter of the second protrusion portion PR2. Also, therefore, the second protrusion portion PR2 may contact the second protrusion groove PH2. With this configuration, a first axis tilt based on the first protrusion portion PR1 and a second axis tilt based on the second protrusion portion PR2 may easily occur, and a tilt radius may be improved.

[0356] FIG. 16 is a diagram illustrating a driving unit according to an embodiment.

[0357] 16, as described above, the driving portion 1250 includes a driving magnet 1251, a driving coil 1252, a Hall sensor portion 1253, a substrate portion 1254, and a yoke portion 1255.

[0358] As described above, the driving magnet 1251 may include the first magnet 1251a, the second magnet 1251b, and the third magnet 1251c that provide a driving force by electromagnetic force. The first magnet 1251a, the second magnet 1251b, and the third magnet 1251c may be located on the outer surface of the prism holder 1231, respectively.

[0359] Additionally, the drive coil 1252 may include multiple coils. In some embodiments, the drive coil 1252 may include a first coil 1252a, a second coil 1252b, and a third coil 1252c.

[0360] The first coil 1252a may be positioned to face the first magnet 1251a. Therefore, the first coil 1252a may be positioned in the first housing hole 1221a of the first housing side portion 1221 as described above. Also, the second coil 1252b may be positioned to face the second magnet 1251b. Therefore, the second coil 1252b may be positioned in the second housing hole 1222a of the second housing side portion 1222 as described above.

[0361] The second camera actuator of the embodiment controls the rotation of the mover 1230 along the first axis (X-axis direction) or the second axis (Y-axis direction) using the electromagnetic force between the driving magnet 1251 and the driving coil 1252, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics.

[0362] In addition, according to the embodiment, by implementing the OIS through the tilting guide portion 1241 of the rotating portion 1240 disposed between the housing 1220 and the mover 1230, it is possible to eliminate the size limitation of the actuator and provide an ultra-slim and ultra-compact camera actuator and a camera module including the same.

[0363] Hereinafter, the above description of the yoke part 1255 and the base part 1254 may be applied in the same manner.

[0364] FIG. 17a is a perspective view of a second camera actuator according to an embodiment, FIG. 17b is a cross-sectional view cut along line MM' in FIG. 17a, and FIG. 17c is an example diagram of the movement of the second camera actuator shown in FIG. 17b.

[0365] 17a to 17c, Y-axis tilt can be performed, i.e., OIS can be realized by rotating in a first direction (X-axis direction).

[0366] As an example, a third magnet 1251c disposed under the prism holder 1231 can generate electromagnetic force together with a third coil 1252c to tilt or rotate the mover 1230 based on the second direction (Y-axis direction).

[0367] Specifically, the repulsive force between the first magnetic body 1242 and the second magnetic body 1243 may be transmitted to the first member 1231a and the second member 1226, and then transmitted to the tilting guide unit 1241 disposed between the first member 1231a and the second member 1226. Accordingly, the tilting guide unit 1241 may be coupled to the mover 1230 and the housing 1220 by the repulsive force.

[0368] The second protrusion PR2 may be supported by the first member 1231a. In this case, as an embodiment, the tilting guide part 1241 may rotate or tilt with the second protrusion PR2 protruding toward the first member 1231a as a reference axis (or rotation axis), that is, with the second direction (Y-axis direction) as a reference. In other words, the tilting guide part 1241 may rotate or tilt in the first direction (X-axis direction) with the second protrusion PR2 protruding toward the first member 1231a as a reference axis (or rotation axis).

[0369] For example, the mover 1230 may be rotated at the first angle θ1 (X1->X1a) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1251c arranged in the third mounting groove and the third coil 1252c arranged on the side of the third substrate, thereby realizing the OIS. Also, the mover 1230 may be rotated at the first angle θ1 (X1->X1b) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1251c arranged in the third mounting groove and the third coil 1252c arranged on the side of the third substrate, thereby realizing the OIS. The first angle θ1 may be ±1° to ±3°. However, the present invention is not limited thereto.

[0370] FIG. 18a is a perspective view of a second camera actuator according to an embodiment, FIG. 18b is a cross-sectional view cut along line LL' in FIG. 18a, and FIG. 18c is an example diagram of the movement of the second camera actuator shown in FIG. 18b.

[0371] 18a to 18c, X-axis tilting may be performed, that is, the mover 1230 may be tilted or rotated in the Y-axis direction to realize OIS.

[0372] As an example, the first magnet 1251a and the second magnet 1251b arranged in the prism holder 1231 can form electromagnetic forces with the first coil 1252a and the second coil 1252b, respectively, to tilt or rotate the tilting guide part 1241 and the mover 1230 based on the first direction (X-axis direction).

[0373] Specifically, the repulsive force between the first magnetic body 1242 and the second magnetic body 1243 may be transmitted to the first member 1231a and the second member 1226, and then transmitted to the tilting guide unit 1241 disposed between the first member 1231a and the second member 1226. Accordingly, the tilting guide unit 1241 may be coupled to the mover 1230 and the housing 1220 by the repulsive force.

[0374] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be spaced apart in the first direction (X-axis direction) and supported by the second member 1226. In addition, in this embodiment, the tilting guide part 1241 may rotate or tilt with the first protrusion PR1 protruding toward the second member 1226 as a reference axis (or rotation axis), that is, with the first direction (X-axis direction) as a reference.

[0375] In other words, the tilting guide portion 1241 can rotate or tilt in the second direction (Y-axis direction) with the first protrusion portion PR1 protruding toward the second member 1226 as a reference axis (or rotation axis).

[0376] For example, the mover 1230 may be rotated at the second angle θ2 (Y1->Y1a) in the Y-axis direction by the second electromagnetic force F2A, F2B between the first and second magnets 1251a, 1251b arranged in the first mounting groove and the first and second coils 1252a, 1252b arranged on the sides of the first and second substrates, thereby realizing the OIS. Also, the mover 1230 may be rotated at the second angle θ2 (Y1->Y1b) in the Y-axis direction by the second electromagnetic force F2A, F2B between the first and second magnets 1251a, 1251b arranged in the first mounting groove and the first and second coils 1252a, 1252b arranged on the sides of the first and second substrates, thereby realizing the OIS. The second angle θ2 may be ±1° to ±3°. However, it is not limited thereto.

[0377] In this manner, the second actuator according to the embodiment rotates the mover 1230 in a first direction (X-axis direction) or a second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the prism holder and the driving coil disposed in the housing, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" means rotating or tilting in the first direction (X-axis direction), and "X-axis tilt" means rotating or tilting in the second direction (Y-axis direction).

[0378] In addition, as described above, in the embodiment, the prism 1232 and the tilting guide unit 1241 are positioned adjacent to each other, so that the tilting guide unit can be disposed adjacent to the center of gravity of the mover. Therefore, the camera actuator according to the embodiment can minimize the moment value that tilts the mover, and can also minimize the consumption of the current applied to the coil unit, etc., to tilt the mover, thereby improving the power consumption and reliability of the element.

[0379] FIG. 19a is an exploded perspective view of a second camera actuator according to the third embodiment, and FIG. 19b is a perspective view of a housing according to the third embodiment.

[0380] 19a and 19b, a second camera actuator 1200 according to the embodiment includes a shield can 1210, a housing 1220, a mover 1230, a rotating section 1240, a driving section 1250, a first member 1231a, and a second member 1226.

[0381] The mover 1230 may include a prism holder 1231 and a prism 1232 mounted on the prism holder 1231. The rotation unit 1240 may include a tilting guide unit 1241, a first magnetic body 1242 and a second magnetic body 1243 having different polarities so as to apply pressure to the tilting guide unit 1241. The driving unit 1250 may include a driving magnet 1251, a driving coil 1252, a Hall sensor unit 1253, a substrate unit 1254, and a yoke unit 1255.

[0382] First, the shielding can 1210 may be positioned at the outermost side of the second camera actuator 1200 to surround a rotating part 1240 and a driving part 1250, which will be described later.

[0383] Such a shielding can 1210 can block or reduce electromagnetic waves generated from the outside, that is, the shielding can 1210 can reduce the occurrence of malfunctions in the rotating part 1240 or the driving part 1250.

[0384] The housing 1220 may be positioned inside the shielding can 1210. Also, the housing 1220 may be positioned inside a substrate unit 1254, which will be described later. The housing 1220 and the shielding can 1210 may be fastened to each other by being inserted or mated with each other.

[0385] The housing 1220 can include a first housing side 1221 , a second housing side 1222 , a third housing side 1223 and a fourth housing side 1224 .

[0386] The first housing side 1221 and the second housing side 1222 may be disposed opposite each other, and the third housing side 1223 and the fourth housing side 1224 may be disposed opposite each other.

[0387] And the third housing side 1223 and the fourth housing side 1224 can be disposed between the first housing side 1221 and the second housing side 1222.

[0388] The third housing side 1223 may be in contact with the first housing side 1221, the second housing side 1222, and the fourth housing side 1224. The third housing side 1223 may be a bottom surface of the housing 1220. In addition, the above-mentioned description regarding the direction may also be applied in the same manner.

[0389] The first housing side portion 1221 may include a first housing hole 1221a, in which a first coil 1252a (described later) may be located.

[0390] In addition, the second housing side portion 1222 may include a second housing hole 1222a, in which a second coil 1252b (described later) may be located.

[0391] The first coil 1252a and the second coil 1252b may be coupled to the substrate unit 1254. As an example, the first coil 1252a and the second coil 1252b may be electrically connected to the substrate unit 1254 so that a current may flow therethrough. This current is an element of electromagnetic force that allows the second camera actuator to tilt with respect to the X-axis.

[0392] Additionally, the third housing side 1223 may include a third housing hole 1223a and a housing groove 1223b'.

[0393] A third coil 1252c, which will be described later, may be positioned in the third housing hole 1223a. The third coil 1252c may be coupled to the substrate part 1254. The third coil 1252c may be electrically connected to the substrate part 1254 so that a current may flow through the third coil 1252c. This current is an element of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.

[0394] A first member 1231a, which will be described later, can be mounted in the housing groove 1223b'. Accordingly, the first member 1231a can be coupled to the third housing side portion 1223. As in the second embodiment, the first member 1231a can be mounted in a housing groove formed by a protrusion or the like and coupled to the housing 1220.

[0395] The fourth housing side 1224 is disposed between the first housing side 1221 and the second housing side 1222 and can contact the first housing side 1221, the second housing side 1222 and the third housing side 1223.

[0396] In addition, the housing 1220 may include a receiving portion 1225 formed by the first housing side portion 1221 to the fourth housing side portion 1224. In the receiving portion 1225, a second member 1226, a first member 1231a, and a mover 1230 may be positioned as components.

[0397] Also, the housing 1220 may further include a fifth housing side facing the fourth housing side 1224. The fifth housing side may be disposed between the first housing side 1221 and the second housing side 1222, and may contact the first housing side 1221, the second housing side 1222, and the third housing side 1223. The fifth housing side may include an opening region to provide a path along which the light reflected by the prism 1232 moves. The fifth housing side may include a protrusion or a groove to provide easy coupling with another adjacent camera actuator. With this configuration, a light path may be provided, and coupling strength between the fifth housing side having an opening for providing the light path and other components may be improved, and movement of the opening due to separation may be suppressed, thereby minimizing changes in the light path.

[0398] The second member 1226 may be disposed in the housing 1220. The second member 1226 may be disposed or included in the housing. And, the second member 1226 may be coupled to the housing 1220. As an example, the second member 1226 may be located between the third housing hole 1223a and the fourth housing side 1224. And, the second member 1226 may be coupled to the third housing side 1223 by passing through the housing groove 1223b′ formed in the third housing side 1223.

[0399] Therefore, the second member 1226 is coupled to the housing 1220 and can maintain its fixation even when the mover 1230, which will be described later, tilts. Also, the second member 1226 includes a second protrusion groove in which a second protrusion of the tilting guide part is mounted. Accordingly, the second member 1226 arranges the protrusion of the tilting guide part adjacent to the prism in the fourth mounting groove so that the protrusion, which is the reference axis of the tilt, is arranged close to the center of gravity of the mover 1230. As a result, the moment that moves the mover 1230 for tilting during tilting is minimized, and therefore the consumption of current driving the coil is also minimized, thereby reducing power consumption.

[0400] Also, the second member 1226 may be formed integrally with or separately from the housing 1220. When the second member 1226 is formed integrally with the housing 1220, the bonding strength between the second member 1226 and the housing 1220 may be increased, improving the reliability of the camera actuator. When the second member 1226 is formed separately, the ease of assembly and manufacturing of the second member 1226 and the housing 1220 may be improved. The following description will be given based on the case where the second member 1226 is separated.

[0401] Mover 1230 includes a prism holder 1231 and a prism 1232 mounted in prism holder 1231 .

[0402] First, the prism holder 1231 may be mounted in the receiving portion 1225 of the housing 1220. The prism holder 1231 may include first to fourth prism outer surfaces corresponding to the first housing side 1221, the second housing side 1222, the third housing side 1223, and the fourth housing side 1224, respectively. In addition, the prism holder 1231 may include a first member 1231a disposed in the fourth mounting groove 1231S4a. This will be described in detail later.

[0403] The prism 1232 may be mounted in the prism holder 1231. To this end, the prism holder 1231 may have a mounting surface, and the mounting surface may be formed by a receiving groove. In an embodiment, the prism 1232 may be a mirror. Although the following will be illustrated based on a mirror, the prism 1232 may be made of a plurality of lenses as in the above embodiment. For example, the prism 1232 may include a reflecting portion disposed therein. However, the present invention is not limited thereto. The prism 1232 may reflect light reflected from the outside (e.g., an object) to the inside of the camera module. In other words, the prism 1232 may change the path of the reflected light to improve the spatial limitations of the first and second camera actuators. It should be understood that the camera module may thus provide a high range of magnification by expanding the light path while minimizing the thickness.

[0404] Further, the first member 1231a may be combined with the prism holder 1231. The first member 1231a may contact a protrusion located in an area other than the fourth mounting groove on an outer surface of the fourth prism of the prism holder 1231. The first member 1231a may be formed integrally with the prism holder 1231. Alternatively, the first member 1231a may be formed as a structure separated from the prism holder 1231.

[0405] The rotating part 1240 includes a tilting guide part 1241, and a first magnetic body 1242 and a second magnetic body 1243 having mutually different polarities so as to apply pressure to the tilting guide part 1241.

[0406] The tilting guide part 1241 may be coupled to the mover 1230 and the housing 1220 described above. Specifically, the tilting guide part 1241 may be disposed between the first member 1231a and the second member 1226 to be coupled to the mover 1230 and the housing 1220. However, unlike the above, in this embodiment, the tilting guide part 1241 may be disposed between the second member 1226 and the prism holder 1231. Specifically, the tilting guide part 1241 may be located between the second member 1226 and the fourth mounting groove 1231S4a of the prism holder 1231.

[0407] In the third direction (Z-axis direction), the fourth housing side part 1224, the first member 1231a, the second member 1226, the tilting guide part 1241 and the prism holder 1231 may be arranged in this order. Also, the first magnetic body 1242 and the second magnetic body 1243 may be mounted in the first groove gr1 formed in the first member 1231a and the second groove gr2 formed in the second member 1226, respectively. In this embodiment, the first groove gr1 and the second groove gr2 may be positioned differently from the first and second grooves described in the other embodiments described above. However, the first groove gr1 is located in the first member 1231a and moves together with the mover, and the second groove gr2 is located on the second member 1226 corresponding to the first groove gr1 and is coupled with the housing 1220. Therefore, the terminology will be used interchangeably in the description.

[0408] Also, the tilting guide unit 1241 may be disposed adjacent to the optical axis, so that the actuator according to the embodiment can easily change the optical path by tilting on the first and second axes, which will be described later.

[0409] The tilting guide portion 1241 may include a first protrusion disposed in a first direction (X-axis direction) and a second protrusion disposed in a second direction (Y-axis direction) and may protrude in opposite directions. This will be described in detail later.

[0410] As described above, the first magnetic body 1242 can be mounted on the fourth mounting groove 1231S4a of the prism holder 1231. And, the second magnetic body 1243 can be mounted in the second member 1226.

[0411] The first magnetic body 1242 and the second magnetic body 1243 may have the same polarity. For example, the first magnetic body 1242 may be a magnet with a north pole, and the second magnetic body 1243 may be a magnet with a north pole. Or, conversely, the first magnetic body 1242 may be a magnet with a south pole, and the second magnetic body 1243 may be a magnet with a south pole.

[0412] The first magnetic body 1242 and the second magnetic body 1243 can generate a repulsive force between each other according to the above-mentioned polarity. With this configuration, the above-mentioned repulsive force can be applied to the first member 123a or the prism holder 1231 coupled to the first magnetic body 1242 and the second member 1226 or the housing 1220 coupled to the second magnetic body 1243. At this time, the repulsive force applied to the first member 1231a can also be transmitted to the prism holder 1231. As a result, the tilting guide unit 1241 disposed between the first member 1231a and the second member 1226 can be pressed by the repulsive force. That is, the repulsive force can maintain the force that the tilting guide unit 1241 is positioned between the first member 1231a and the second member 1226. As a result, the position between the mover 1230 and the housing 1220 can be maintained even during X-axis tilt or Y-axis tilt.

[0413] The driving part 1250 includes a driving magnet 1251, a driving coil 1252, a Hall sensor part 1253, a substrate part 1254, and a yoke part 1255. The above-mentioned contents can be applied to this.

[0414] FIG. 20a is a perspective view of a prism holder according to an embodiment, FIG. 20b is a bottom view of the prism holder according to an embodiment, and FIG. 20c is a side view of the prism holder according to an embodiment.

[0415] 20a to 20c, the prism holder 1231 may include a mounting surface 1231k on which the prism 1232 is mounted. The mounting surface 1231k may be an inclined surface. The prism holder 1231 may also include a step 1231b on the upper part of the mounting surface 1231k. The step 1231b of the prism holder 1231 may be coupled to the protrusion 1232a of the prism 1232.

[0416] The prism holder 1231 may include a plurality of outer surfaces. For example, the prism holder 1231 may include a first prism outer surface 1231S1, a second prism outer surface 1231S2, a third prism outer surface 1231S3, and a fourth prism outer surface 1231S4. The description of the above-mentioned embodiment may be applied to this.

[0417] Specifically, the fourth prism outer surface 1231S4 may include a fourth mounting groove 1231S4a, in which the first member 1231a, the second member 1226, and the tilting guide portion 1241 may be sequentially positioned in the third direction (Z-axis direction).

[0418] In an embodiment, the fourth mounting groove 1231S4a may include a plurality of regions, such as a first region AR1, a second region AR2, and a third region AR3.

[0419] The first member 1231a may be located in the first region AR1. That is, the first region AR1 may overlap with the first member 1231a in the first direction (X-axis direction).

[0420] The second region AR2 may be located in the second member 1226. That is, the second region AR2 may overlap with the second member 1226 in the first direction (X-axis direction).

[0421] The tilting guide part 1241 may be located in the third region AR3. Also, the third region AR3 may overlap with the tilting guide part 1241 in the first direction (X-axis direction).

[0422] Also, the second area AR2 may be located between the first area AR1 and the third area AR3.

[0423] In this embodiment, the first region AR1, the second region AR2, and the third region AR3 may have different heights in the first direction (X-axis direction). In one embodiment, the first region AR1 may have a greater height in the first direction (X-axis direction) than the second region AR2 and the third region AR3. Therefore, a step may be located between the first region AR1 and the second region AR2.

[0424] In addition, the first member 1231a may include a first groove gr1. The above-mentioned first magnetic bodies 1242 may be mounted in the first groove gr1. In addition, the first groove gr1 may be multiple in number according to the number of the first magnetic bodies 1242. That is, the first groove gr1 may be formed in a number corresponding to the number of the first magnetic bodies 1242.

[0425] 21a is a perspective view of the tilting guide part according to the embodiment, FIG. 21b is a perspective view of the tilting guide part in a direction different from that of FIG. 21a, and FIG. 21c is a cross-sectional view of the tilting guide part taken along line FF' in FIG. 21a.

[0426] 21a to 21c, the tilting guide part 1241 according to the embodiment may include a base BS, a first protrusion PR1 protruding from a first surface 1241a of the base BS, and a second protrusion PR2 protruding from a second surface 1241b of the base BS. Also, as described above, the first protrusion and the second protrusion may be formed on opposite surfaces depending on the structure, but the following description will be based on the above content. Also, the description of this embodiment may be applied to the same extent as the above content in other embodiments.

[0427] Figure 22a is an oblique view of a second camera actuator in an embodiment with the shielding can and substrate removed, Figure 22b is a cross-sectional view taken at PP' in Figure 22a, and Figure 22c is a cross-sectional view taken at QQ' in Figure 22a.

[0428] 22a to 22c, the first coil 1252a may be located on the first housing side portion 1221, and the first magnet 1251a may be located on the first prism outer surface 1231S1 of the prism holder 1231. Therefore, the first coil 1252a and the first magnet 1251a may be located facing each other. The first magnet 1251a may at least partially overlap the first coil 1252a in the second direction (Y-axis direction).

[0429] Also, the second coil 1252b may be located on the second housing side portion 1222, and the second magnet 1251b may be located on the second prism outer surface 1231S2 of the prism holder 1231. Therefore, the second coil 1252b and the second magnet 1251b may be located facing each other. The second magnet 1251b may at least partially overlap the second coil 1252b in the second direction (Y-axis direction).

[0430] Furthermore, the first coil 1252a and the second coil 1252b may overlap in the second direction (Y-axis direction), and the first magnet 1251a and the second magnet 1251b may overlap in the second direction (Y-axis direction).

[0431] With this configuration, the electromagnetic force applied to the outer surfaces (first prism outer surface and second prism outer surface) of the prism holder is positioned on a parallel axis in the second direction (Y-axis direction), so that X-axis tilt can be performed accurately and precisely.

[0432] Also, the second protrusions PR2a and PR2b of the tilting guide part 1241 may contact the second member 1226 of the housing 1220. The second protrusion PR2 may be mounted in a second protrusion groove PH2 formed on one side of the second member 1226. And, when performing X-axis tilt, the second protrusions PR2a and PR2b may be a reference axis (or a rotation axis) of the tilt. Therefore, the tilting guide part 1241 and the mover 1230 may move up and down.

[0433] Also, as described above, the first hall sensor 1253a may be located on the outside for electrical connection and coupling with the substrate part 1254. However, the location is not limited to this.

[0434] Also, the third coil 1252c may be located on the third housing side portion 1223, and the third magnet 1251c may be located on the third prism outer surface 1231S3 of the prism 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.

[0435] As described above, the tilting guide portion 1241 may be located on the fourth prism outer surface 1231S4 of the prism holder 1231. Also, the tilting guide portion 1241 may be mounted in the fourth mounting groove 1231S4a of the fourth prism outer surface. As described above, the fourth mounting groove 1231S4a may include the first region AR1, the second region AR2, and the third region AR3.

[0436] The first member 1231a is disposed in the first region AR1, and the first member 1231a may include a first groove gr1. As described above, the first magnetic body 1242 is disposed in the first groove gr1, and the repulsive force RF2 generated in the first magnetic body 1242 may be transmitted to the fourth mounting groove 1231S4a of the prism holder 1231 through the first member 1231a (RF2'). Therefore, the prism holder 1231 may apply a force to the tilting guide part 1241 in the same direction as the repulsive force RF2 generated in the first magnetic body 1242.

[0437] A second member 1226 may be disposed in the second region AR2. The second member 1226 may include a second groove gr2 facing the first groove gr1. The second member 1226 may also include a second protrusion groove PH2 disposed on a surface corresponding to the second groove gr2. A repulsive force RF1 generated by the second magnetic body 1243 may be applied to the second member 1226. Accordingly, the second member 1226 and the first member 1231a may apply pressure to the tilting guide part 1241 disposed between the second member 1226 and the prism holder 1231 through the generated repulsive forces RF1 and RF2'.

[0438] The tilting guide portion 1241 may be disposed in the third region AR3. As described above, the tilting guide portion 1241 may include the first protrusion portion PR1 and the second protrusion portion PR2. At this time, the first protrusion portion PR1 and the second protrusion portion PR2 may be disposed on the second surface 1241b and the first surface 1241a of the base BS, respectively. As such, in other embodiments described below, the first protrusion portion PR1 and the second protrusion portion PR2 may be variously positioned on the opposing surfaces of the base BS.

[0439] The first protrusion groove PH1 may be located in the fourth mounting groove 1231S4a. The first protrusion portion PR1 of the tilting guide portion 1241 may be received in the first protrusion groove PH1. Therefore, the first protrusion portion PR1 may contact the first protrusion groove PH1. The first protrusion groove PH1 may have a maximum diameter corresponding to the maximum diameter of the first protrusion portion PR1. This can be applied to the second protrusion groove PH2 and the second protrusion portion PR2 in the same manner. That is, the second protrusion groove PH2 may have a maximum diameter corresponding to the maximum diameter of the second protrusion portion PR2. Also, therefore, the second protrusion portion PR2 may contact the second protrusion groove PH2. With this configuration, a first axis tilt based on the first protrusion portion PR1 and a second axis tilt based on the second protrusion portion PR2 may be easily generated, and a tilt radius may be improved.

[0440] Also, the tilting guide part 1241 may be arranged in line with the first member 1231a and the second member 1226 in the third direction (Z-axis direction), and the tilting guide part 1241 may overlap with the prism 1232 in the first direction (X-axis direction). More specifically, in the embodiment, the first protrusion part PR1 may overlap with the prism 1232 in the first direction (X-axis direction). Furthermore, at least a portion of the first protrusion part PR1 may overlap with the third coil 1252c or the third magnet 1251c in the first direction (X-axis direction). That is, in the camera actuator according to the embodiment, each protrusion part, which is the central axis of the tilt, may be positioned adjacent to the center of gravity of the mover 1230. As a result, the tilting guide part may be positioned adjacent to the center of gravity of the mover. As a result, the camera actuator according to the embodiment may minimize the moment value that tilts the mover, and may also minimize the consumption of the current applied to the coil part, etc., to tilt the mover, thereby improving the power consumption and reliability of the element.

[0441] In addition, the first magnetic body 1242 and the second magnetic body 1243 may not overlap the third coil 1252c or the prism 1232 in the first direction (X-axis direction). They may overlap. In other words, in the embodiment, the first magnetic body 1242 and the second magnetic body 1243 may be spaced apart from the third coil 1252c or the prism 1232 in the third direction (Z-axis direction). This can minimize the magnetic force transferred from the first magnetic body 1242 and the second magnetic body 1243 to the third coil 1252c. Therefore, the camera actuator according to the embodiment can easily perform up-down driving (Y-axis tilt) and minimize power consumption.

[0442] As a result, as described above, the second Hall sensor 1253b located inside the third coil 1252c detects the change in magnetic flux, thereby performing position sensing between the third magnet 1251c and the second Hall sensor 1253b. At this time, the offset voltage of the second Hall sensor 1253b may be changed due to the influence of the magnetic field formed by the first magnetic body 1242 and the second magnetic body 1243.

[0443] The second camera actuator according to the embodiment may be arranged in the third direction in the order of the first member 1231a, the first magnetic body 1242, the second magnetic body 1243, the second member 1226, and the tilting guide part 1241. In an embodiment, the first magnetic body 1242 and the second magnetic body 1243 may be spaced apart from the prism holder 1231 (or the prism 1232) in the third direction by a larger distance than the rotating plate 1241. Thus, the second Hall sensor 1253b under the prism holder 1231 may also be spaced apart from the first magnetic body 1242 and the second magnetic body 1243 by a predetermined distance. Therefore, the second Hall sensor 1253b can minimize the influence of the magnetic field formed by the first magnetic body 1242 and the second magnetic body 1243 and prevent the Hall voltage from concentrating positively or negatively and becoming saturated. That is, this configuration allows the Hall electrode to have a range in which Hall calibration can be performed. Furthermore, the temperature also affects the electrode of the Hall sensor, and the resolution of the camera lens varies depending on the temperature. In this embodiment, the Hall voltage is prevented from concentrating positively or negatively, and the lens resolution is compensated accordingly, so that a decrease in resolution can be easily prevented.

[0444] In addition, a circuit can be easily designed to compensate for an offset in the output (ie, the Hall voltage) of the second Hall sensor 1253b.

[0445] FIG. 23 is a diagram illustrating a driving unit according to an embodiment.

[0446] 23, as described above, the actuator 1250 includes an actuator magnet 1251, an actuator coil 1252, a Hall sensor unit 1253, and a substrate unit 1254. The description of the camera actuator according to the second embodiment can be applied to this.

[0447] FIG. 24a is a perspective view of a second camera actuator according to an embodiment, FIG. 24b is a cross-sectional view taken along line SS' in FIG. 24a, and FIG. 24c is an exemplary view showing the movement of the second camera actuator shown in FIG. 24b.

[0448] 24a to 24c, Y-axis tilt can be performed, i.e., OIS can be realized by rotating in a first direction (X-axis direction).

[0449] As an example, a third magnet 1251c disposed under the prism holder 1231 can generate electromagnetic force together with a third coil 1252c to tilt or rotate the mover 1230 based on the second direction (Y-axis direction).

[0450] Specifically, the repulsive force between the first magnetic body 1242 and the second magnetic body 1243 may be transmitted to the first member 1231a and the second member 1226, and may finally be transmitted to the tilting guide unit 1241 disposed between the second member 1226 and the prism holder 1231. Accordingly, the tilting guide unit 1241 may be pressurized by the mover 1230 and the housing 1220 due to the above-mentioned repulsive force.

[0451] Also, the second protrusion PR2 may be supported by the second member 1226. In this case, as an embodiment, the tilting guide part 1241 may rotate or tilt with the second protrusion PR2 protruding toward the second member 1226 as a reference axis (or rotation axis), that is, with the second direction (Y-axis direction) as a reference. In other words, the tilting guide part 1241 may rotate or tilt in the first direction (X-axis direction) with the second protrusion PR2 protruding toward the second member 1226 as a reference axis (or rotation axis).

[0452] For example, the mover 1230 may be rotated at the first angle θ1 (X1->X1a) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1251c arranged in the third mounting groove and the third coil unit 1252c arranged on the side of the third substrate, thereby realizing the OIS. Also, the mover 1230 may be rotated at the first angle θ1 (X1->X1b) in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1251c arranged in the third mounting groove and the third coil unit 1252c arranged on the side of the third substrate, thereby realizing the OIS. The first angle θ1 may be ±1° to ±3°. However, the present invention is not limited thereto.

[0453] FIG. 25a is a perspective view of a second camera actuator according to an embodiment, FIG. 25b is a cross-sectional view taken along line RR' in FIG. 25a, and FIG. 25c is an example diagram of the movement of the second camera actuator shown in FIG. 25b.

[0454] 25a to 25c, X-axis tilting may be performed, that is, mover 1230 may be tilted or rotated in the Y-axis direction to realize OIS.

[0455] As an example, the first magnet 1251a and the second magnet 1251b arranged in the prism holder 1231 can form electromagnetic forces with the first coil 1252a and the second coil 1252b, respectively, to tilt or rotate the tilting guide part 1241 and the mover 1230 based on the first direction (X-axis direction).

[0456] Specifically, the repulsive force between the first magnetic body 1242 and the second magnetic body 1243 may be transmitted to the second member 1226 and the prism holder 1231, and may ultimately be transmitted to the tilting guide unit 1241 disposed between the prism holder 1231 and the second member 1226. Accordingly, the tilting guide unit 1241 may be pressurized by the mover 1230 and the housing 1220 due to the above-mentioned repulsive force.

[0457] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be spaced apart in the first direction (X-axis direction) and supported by a first protrusion groove PH1 formed in the fourth mounting groove 1231S4a of the prism holder 1231. In addition, as an embodiment, the tilting guide part 1241 may rotate or tilt with the first protrusion PR1 protruding toward the prism holder 1231 (e.g., toward the third direction) as a reference axis (or rotation axis), that is, with the first direction (X-axis direction) as a reference.

[0458] For example, the mover 1230 may be rotated at the second angle θ2 (Y1->Y1a) in the Y-axis direction by the second electromagnetic force F2A, F2B between the first and second magnets 1251a, 1251b arranged in the first mounting groove and the first and second coils 1252a, 1252b arranged on the sides of the first and second substrates, thereby realizing the OIS. Also, the mover 1230 may be rotated at the second angle θ2 (Y1->Y1b) in the Y-axis direction by the second electromagnetic force F2A, F2B between the first and second magnets 1251a, 1251b arranged in the first mounting groove and the first and second coils 1252a, 1252b arranged on the sides of the first and second substrates, thereby realizing the OIS. The second angle θ2 may be ±1° to ±3°. However, it is not limited thereto.

[0459] In this manner, the second actuator according to the embodiment rotates the mover 1230 in a first direction (X-axis direction) or a second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the prism holder and the driving coil disposed in the housing, thereby minimizing the occurrence of descent and tilt phenomena when implementing the OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" means rotating or tilting in the first direction (X-axis direction), and "X-axis tilt" means rotating or tilting in the second direction (Y-axis direction).

[0460] FIG. 26 is a perspective view of an actuator for AF or Zoom according to another embodiment of the present invention, FIG. 27 is a perspective view of the actuator according to the embodiment shown in FIG. 26 with some components omitted, FIG. 28 is an exploded perspective view of the actuator according to the embodiment shown in FIG. 26 with some components omitted, FIG. 29a is a perspective view of a first lens assembly in the actuator according to the embodiment shown in FIG. 28, and FIG. 29b is a perspective view of the first lens assembly shown in FIG. 29a with some components removed.

[0461] FIG. 26 is a perspective view of an actuator for AF or Zoom according to another embodiment of the present invention, FIG. 27 is a perspective view of the actuator according to the embodiment shown in FIG. 26 with some components omitted, and FIG. 28 is an exploded perspective view of the actuator according to the embodiment shown in FIG. 26 with some components omitted.

[0462] Referring to FIG. 26, an actuator 2100 according to the embodiment may include a housing 2020 , a circuit board 2040 , a driving unit 2142 , and a third lens assembly 2130 disposed outside the housing 2020 .

[0463] FIG. 27 is an oblique view in which the housing 2020 and the circuit board 2040 in FIG. 26 are omitted, and referring to FIG. 27, the actuator 2100 of the embodiment may include a first guide part 2210, a second guide part 2220, a first lens assembly 2110, a second lens assembly 2120, a driving part 2141, and a driving part 2142.

[0464] The driving portion 2141 and the driving portion 2142 may include a coil or a magnet.

[0465] For example, when the driving part 2141 and the driving part 2142 include coils, the driving part 2141 may include a first coil part 2141b and a first yoke 2141a, and the driving part 2142 may include a second coil part 2142b and a second yoke 2142a.

[0466] Alternatively, on the contrary, driving portion 2141 and driving portion 2142 may include magnets.

[0467] Referring to FIG. 28, the actuator 2100 according to the embodiment may include a housing 2020, a first guide portion 2210, a second guide portion 2220, a first lens assembly 2110, a second lens assembly 2120, and a third lens assembly 2130.

[0468] For example, the actuator 2100 of the embodiment may include a housing 2020, a first guide portion 2210 arranged on one side of the housing 2020, a second guide portion 2220 arranged on the other side of the housing 2020, a first lens assembly 2110 corresponding to the first guide portion 2210, a second lens assembly 2120 corresponding to the second guide portion 2220, a first ball 2117 (see FIG. 29a) arranged between the first guide portion 2210 and the first lens assembly 2110, and a second ball (not shown) arranged between the second guide portion 2220 and the second lens assembly 2120.

[0469] Additionally, the embodiment may include a third lens assembly 2130 disposed in front of the first lens assembly 2110 in the optical axis direction.

[0470] 27 and 28, the embodiment may include a first guide portion 2210 arranged adjacent to a first side wall of the housing 2020, and a second guide portion 2220 arranged adjacent to a second side wall of the housing 2020.

[0471] The first guide portion 2210 may be disposed between the first lens assembly 2110 and a first side wall of the housing 2020 .

[0472] The second guide portion 2220 may be disposed between the second lens assembly 2120 and the second side wall of the housing 2020. The first side wall and the second side wall of the housing 2020 may be disposed to face each other.

[0473] According to the embodiment, the lens assembly is driven with the first guide part 2210 and the second guide part 2220, which are precisely numerically controlled within the housing 2020, combined, thereby reducing friction torque and reducing friction resistance, resulting in technical effects such as improved driving force during zooming, reduced power consumption, and improved control characteristics.

[0474] Accordingly, according to the embodiment, friction torque during zooming is minimized, and lens descent, lens tilt, and misalignment between the central axis of the lens group and the image sensor are prevented, resulting in multiple technical effects that can significantly improve image quality and resolution.

[0475] In particular, according to this embodiment, a guide rail is not provided on the housing itself, but a first guide part 2210 and a second guide part 2220 which are formed separately from the housing 2020 and assembled thereto are separately adopted, thereby providing a special technical effect of preventing the occurrence of gradients depending on the injection direction.

[0476] In an embodiment, the first guide part 2210 and the second guide part 2220 may be ejected along the X-axis and the ejected length may be shorter than the housing 2020. In this case, if rails are arranged on the first guide part 2210 and the second guide part 2220, it is possible to minimize the occurrence of gradients during ejection, resulting in a technical effect that the straight line of the rails is less likely to be deviated.

[0477] More specifically, Figure 29a is an oblique view of a first lens assembly 2110 in the actuator for the embodiment shown in Figure 28, and Figure 29b is an oblique view of the first lens assembly 2110 shown in Figure 29a with some components removed.

[0478] Referring to FIG. 28, an embodiment may include a first lens assembly 2110 that moves along a first guide portion 2210 and a second lens assembly 2120 that moves along a second guide portion 2220 .

[0479] 29a again, the first lens assembly 2110 may include a first lens barrel 2112a in which the first lens 2113 is disposed, and a first actuator housing 2112b in which the actuator 2116 is disposed. The first lens barrel 2112a and the first actuator housing 2112b may be a first housing, and the first housing may be in the form of a barrel or a lens barrel. The actuator 2116 may be a driving magnet, but is not limited thereto, and may be a coil in some cases.

[0480] Also, the second lens assembly 2120 may include a second lens barrel (not shown) in which the second lens (not shown) is disposed, and a second actuator housing (not shown) in which the actuator (not shown) is disposed. The second lens barrel (not shown) and the second actuator housing (not shown) may be a second housing, and the second housing may be in a barrel or lens barrel shape. The actuator may be a actuator magnet, but is not limited thereto, and a coil may be disposed in some cases.

[0481] The drive portion 2116 may correspond to two first rails 2212 .

[0482] An embodiment may be actuated using a single ball or multiple balls. For example, an embodiment may include a first ball 2117 disposed between the first guide portion 2210 and the first lens assembly 2110, and a second ball (not shown) disposed between the second guide portion 2220 and the second lens assembly 2120.

[0483] For example, in an embodiment, the first ball 2117 may include a single or multiple 1-1 balls 2117a arranged on the upper side of the first actuator housing 2112b and a single or multiple 1-2 balls 2117b arranged on the lower side of the first actuator housing 2112b.

[0484] In this embodiment, the 1-1 ball 2117a of the first ball 2117 may move along the 1-1 rail 2212a, which is one of the first rails 2212, and the 1-2 ball 2117b of the first ball 2117 may move along the other 1-2 rail 2212b, which is the other of the first rails 2212.

[0485] According to this embodiment, the first guide portion is provided with a 1-1 rail and a 1-2 rail, and the 1-1 rail and the 1-2 rail guide the first lens assembly 2110, thereby achieving the technical effect of increasing the accuracy of optical axis alignment between the first lens assembly 2110 and the second lens assembly 2120 when the first lens assembly 2110 moves.

[0486] 29b, in an embodiment, the first lens assembly 2110 may include a first assembly groove 2112b1 in which a first ball 2117 is disposed. The second lens assembly 2120 may include a second assembly groove (not shown) in which a second ball is disposed.

[0487] There may be a plurality of first assembly grooves 2112b1 of the first lens assembly 2110. In this case, the distance between two of the plurality of first assembly grooves 2112b1 based on the optical axis direction may be longer than the thickness of the first lens barrel 2112a.

[0488] In the embodiment, the first assembly groove 2112b1 of the first lens assembly 2110 may be V-shaped. Also, the second assembly groove (not shown) of the second lens assembly 2120 may be V-shaped. The first assembly groove 2112b1 of the first lens assembly 2110 may be V-shaped, U-shaped, or a shape that contacts the first ball 2117 at two or three points. The second assembly groove (not shown) of the second lens assembly 2120 may be V-shaped, U-shaped, or a shape that contacts the second ball at two or three points.

[0489] 28 and 29a, in an embodiment, the first guide portion 2210, the first ball 2117, and the first assembly groove 2112b1 may be disposed on a virtual straight line extending from the first side wall to the second side wall. The first guide portion 2210, the first ball 2117, and the first assembly groove 2112b1 may be disposed between the first side wall and the second side wall.

[0490] FIG. 30 is a perspective view of the third lens assembly 2130 in the actuator according to the embodiment shown in FIG.

[0491] Referring to FIG. 30, in an embodiment, the third lens assembly 2130 may include a third housing 2021, a third barrel, and a third lens 2133.

[0492] In this embodiment, the third lens assembly 2130 has a barrel portion recess 2021r at the upper end of the third barrel, which allows the thickness of the third barrel of the third lens assembly 2130 to be uniform, thereby achieving the multiple technical effects of reducing the amount of injection material and improving the accuracy of numerical control.

[0493] Furthermore, according to the embodiment, the third lens assembly 2130 may include a housing rib 2021a and a housing recess 2021b in the third housing 2021.

[0494] In this embodiment, the third lens assembly 2130 has a housing recess 2021b in the third housing 2021, thereby reducing the amount of injected material and improving the accuracy of numerical control, and also has a housing rib 2021a in the third housing 2021, thereby achieving the composite technical effect of ensuring strength.

[0495] FIG. 31 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

[0496] As shown in FIG. 31, the mobile terminal 1500 of the embodiment may include a camera module 1000, a flash module 1530, and an auto focus device 1510 provided on the rear surface.

[0497] The camera module 1000 may include an image capture function and an autofocus function, for example, the camera module 1000 may include an image-based autofocus function.

[0498] The camera module 1000 processes still or video image frames captured by an image sensor in a photography mode or a video call mode.

[0499] The processed image frames can be displayed on a predetermined display unit and stored in a memory. A camera (not shown) can also be disposed on the front side of the body of the mobile terminal.

[0500] For example, the camera module 1000 may include a first camera module and a second camera module, where the first camera module may implement OIS together with an AF or zoom function, and the second camera module may implement at least one of AF, zoom, and OIS.

[0501] The flash module 1530 may include a light emitting element for emitting light therein, and may be operated by the camera of the mobile terminal or by the user.

[0502] The autofocus device 1510 may include one of a package of surface emitting laser elements as a light emitter.

[0503] The autofocus device 1510 may include an autofocus function using a laser. The autofocus device 1510 may be used primarily in conditions where the autofocus function using the image of the camera module 1000 is degraded, such as in close proximity of less than 10 m or in dark environments.

[0504] The autofocus device 1510 may include a light emitting portion including a vertical cavity surface emitting laser (VCSEL) semiconductor device, and a light receiving portion such as a photodiode that converts optical energy into electrical energy.

[0505] FIG. 32 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0506] For example, FIG. 32 is an external view of a vehicle equipped with a vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.

[0507] 32, a vehicle 700 according to an embodiment may include wheels 13FL and 13FR that are rotated by a power source, and a predetermined sensor. The sensor may be, but is not limited to, a camera sensor 2000.

[0508] The camera sensor 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied. The vehicle 700 according to the embodiment may acquire image information through the camera sensor 2000 that captures a front image or a surrounding image, and may determine an unidentified lane situation using the image information and generate a virtual lane when the lane is unidentified.

[0509] For example, the camera sensor 2000 may capture an image in front of the vehicle 700 to obtain a front image, and a processor (not shown) may analyze objects included in the front image to obtain image information.

[0510] For example, when an object such as a lane, an adjacent vehicle, a driving obstacle, or a median strip, a curb, or a roadside tree, which corresponds to an indirect road marking, is captured in an image captured by the camera sensor 2000, the processor can detect such an object and include it in the image information. At this time, the processor can obtain distance information from the object detected through the camera sensor 2000 to further complement the image information.

[0511] The image information may be information about an object captured in the image. The camera sensor 2000 may include an image sensor and an image processing module.

[0512] The camera sensor 2000 can process still or moving images acquired by an image sensor (eg, CMOS or CCD).

[0513] The image processing module processes still or moving images acquired through the image sensor to extract necessary information and transmit the extracted information to a processor.

[0514] In this case, the camera sensor 2000 may include, but is not limited to, a stereo camera to improve the accuracy of measuring the object and to further obtain information such as the distance between the vehicle 700 and the object.

[0515] The above description focuses on the embodiments, but these are merely illustrative and do not limit the present invention. Those skilled in the art will appreciate that various modifications and applications not exemplified above are possible without departing from the essential characteristics of the present embodiments. For example, each component specifically illustrated in the embodiments can be modified and implemented. Differences related to such modifications and applications should be interpreted as being included in the scope of the present invention as defined in the appended claims.

Claims

1. housing; a mover disposed within the housing; A tilting guide portion disposed between the housing and the mover; and a drive portion disposed within the housing for driving the mover; A first magnetic body disposed on the mover; and a second magnetic body disposed to face the first magnetic body; the tilting guide portion is pressed against the mover by a repulsive force between the first magnetic body and the second magnetic body, the second magnetic body, the first magnetic body, the tilting guide portion, and the mover are arranged in order along the Z-axis direction, the tilting guide portion is inclined with respect to one of the X-axis direction and the Y-axis direction, The camera actuator, wherein the X-axis direction and the Y-axis direction are perpendicular to the Z-axis direction.

2. the mover includes a mounting groove for receiving the tilting guide portion, The camera actuator of claim 1 , further comprising a first member and a second member received in the mounting groove.

3. the tilting guide portion is disposed between the first member and the second member, The camera actuator according to claim 2 , wherein the second member is disposed between the tilting guide portion and the mover.

4. The mounting groove includes a first groove located on a bottom surface, the second member includes a second groove disposed on a surface facing the first groove, The first magnetic body is disposed in the first groove, The camera actuator according to claim 3 , wherein the second magnetic body is disposed in the second groove.

5. The camera actuator according to claim 4 , wherein the tilting guide portion includes a base, a first protrusion protruding from a first surface of the base, and a second protrusion protruding from a second surface of the base.

6. The camera actuator of claim 5 , wherein the mover is tilted about a first axis with respect to the first protrusion and is tilted about a second axis with respect to the second protrusion.

7. the first member includes a first protrusion groove that receives the first protrusion; The camera actuator of claim 6 , wherein the second member includes a second protruding groove that receives the second protrusion.

8. the first member, the second member, and the tilting guide portion at least partially overlap with the mover and the second shaft; the tilting guide portion overlaps the first member, the second member, and a third axis; The camera actuator of claim 7 , wherein the third axis is perpendicular to the first axis and the second axis.

9. the mounting groove includes a first region in which the first member is received; and a second region in which the second member is received; The camera actuator of claim 6 , wherein the height of the first region is greater than the height of the second region.

10. the mounting groove includes a third region in which the tilting guide portion is received, The camera actuator of claim 9 , wherein the third region is disposed between the first region and the second region.

11. The camera actuator of claim 10 , wherein a height of the third region is smaller than a height of the first region and larger than a height of the second region.

12. the driving unit includes a driving magnet and a driving coil; the drive magnet includes a first magnet, a second magnet, and a third magnet; the drive coil includes a first coil, a second coil and a third coil; the first magnet and the second magnet are disposed symmetrically about the first axis on the mover, the first coil and the second coil are disposed symmetrically about the first axis between the housing and the mover, the third magnet is disposed on a bottom surface of the mover, The camera actuator of claim 6 , wherein the third coil is disposed on a bottom surface of the housing.

13. The camera actuator according to claim 12 , wherein the tilting guide portion overlaps with the third coil or the third magnet along a third axis.

14. The camera actuator according to claim 2 , wherein the second member is disposed between the tilting guide portion and the first member.

Images