Camera actuator and camera device comprising the same

Abstract

According to an embodiment of the present application, a camera device is disclosed, the camera device comprising: a housing; a lens assembly comprising at least one lens; a driving unit for moving the lens assembly; a main substrate having an image sensor disposed thereon; and first and second substrates electrically connected to the driving unit and arranged apart from each other on facing side surfaces of the housing, wherein the main substrate comprises a first connecting member connected to the first substrate and a second connecting member connected to the second substrate.

Description

TECHNICAL FIELD

[0001] The disclosure relates to a camera actuator and a camera device including the same. BACKGROUND

[0002] A camera is a device that acquires a photo or a video of an object, and is mounted on a portable device, a drone, a vehicle, etc. A camera device or a camera module can have an image stabilization (IS) function that corrects or prevents image shake due to user motion to improve image quality, an auto focus (AF) function that automatically adjusts a distance between an image sensor and a lens and thereby aligns a focal length of the lens, and a zoom function that increases or decreases a magnification of a distant object through a zoom lens.

[0003] Meanwhile, the higher the number of pixels, the higher the resolution of the image sensor, and the smaller the size of the pixel. As the size of the pixel becomes smaller, the amount of light received during the same time period decreases. Accordingly, when the camera has a higher number of pixels, image shake due to hand shake that occurs due to a decrease in shutter speed in a dark environment can occur more severely. As a representative IS technology, there is an optical image stabilizer (OIS) technology that corrects motion by changing a path of light.

[0004] A general OIS technology is capable of detecting camera motion through a gyro sensor or the like, and is capable of tilting or moving a lens or a camera device including the lens and the image sensor based on the detected motion. In the case of tilting or moving the lens or the camera device including the lens and the image sensor for OIS, it is necessary to additionally secure a space for tilting or moving in the vicinity of the lens or the camera device.

[0005] On the other hand, an actuator for OIS can be disposed around the lens. In this case, the actuator for OIS can include an actuator responsible for tilting in two axes perpendicular to the optical axis Z, that is, an actuator responsible for X-axis tilting and an actuator responsible for Y-axis tilting.

[0006] However, due to the need for an ultra-thin and ultra-small camera device, there is a great space limitation with respect to arranging the actuator for OIS, and it can be difficult to secure enough space for the lens or the camera device including the lens and the image sensor itself to be tilted or moved for OIS. In addition, when the camera has a higher number of pixels, it is desirable to increase the size of the lens to increase the amount of light received. However, there can be a limitation in increasing the size of the lens due to the space occupied by the actuator for OIS.

[0007] Further, when the zoom function, the AF function, and the OIS function are all included in the camera device, there is a problem in that the magnets for the OIS and the magnets for the AF or the zoom are disposed close to each other and cause magnetic field interference. SUMMARY

[0008] TECHNICAL PROBLEM

[0009] A technical problem to be solved by the disclosure is to provide a camera actuator and a camera device having a reduced size through a connection between each substrate disposed on a side surface and a main substrate.

[0010] Further, the disclosure aims to provide a camera actuator and a camera device in which reliability is improved because a connection member located outside does not expand inward.

[0011] Further, the disclosure aims to provide a camera actuator that can be reduced in size through an inwardly inclined connection area.

[0012] Further, the disclosure aims to provide a camera actuator and a camera device suitable for a super-thin, super-small, and high-resolution camera.

[0013] The problems to be solved in the embodiments are not limited to the above, and further include other objects or effects that can be understood from the technical solutions or embodiments described below.

[0014] TECHNICAL SOLUTION

[0015] A camera device according to an embodiment of the disclosure includes a housing, a lens assembly including at least one lens, a driving unit that moves the lens assembly, a main substrate on which an image sensor is disposed, and first and second substrates that are electrically connected to the driving unit and are spaced apart from each other on opposite side surfaces of the housing, wherein the main substrate includes a first connection member connected to the first substrate and a second connection member connected to the second substrate.

[0016] The driving unit can include a driving coil including a first coil disposed on a first side surface of the housing and a second coil disposed on a second side surface of the housing, and a driving magnet positioned to face the driving coil, the driving magnet including a first magnet corresponding to the first coil and a second magnet corresponding to the second coil.

[0017] A driving driver disposed on the main substrate can be further included, and the driving driver can be electrically connected to the first coil and the second coil.

[0018] A base unit surrounding the image sensor and the driving driver located on the main substrate can be further included.

[0019] The first substrate can include a first main area and a first connection area in contact with an end of the first main area, and the second substrate can include a second main area and a second connection area in contact with an end of the second main area.

[0020] The first connection area can be inwardly inclined with respect to the first main area, the second connection area can be inwardly inclined with respect to the second main area, and a first spaced distance between the first main area and the second main area can be greater than a second spaced distance between the first connection area and the second connection area.

[0021] The first connection area can include a first connection terminal portion disposed on the outer surface, and the second connection area can include a second connection terminal portion disposed on the outer surface.

[0022] The main substrate can include a first substrate terminal portion and a second substrate terminal portion disposed on an upper surface of the main substrate, the first connection area can overlap the first substrate terminal portion, and the second connection area can overlap the second substrate terminal portion.

[0023] The first connection member can be disposed between the first connection terminal portion and the second substrate terminal portion, and the second connection member can be disposed between the second connection terminal portion and the second substrate terminal portion.

[0024] The lens assembly can include a second lens assembly and a first lens assembly disposed between the second lens assembly and the image sensor, and a first movement distance of the first lens assembly can be greater than a second movement distance of the second lens assembly.

[0025] The first connection member and the second connection member can include conductive members.

[0026] A camera device according to the present embodiment can include a housing, a lens assembly including at least one lens, a lens unit moving the lens assembly, a main substrate on which an image sensor is disposed, a first substrate and a second substrate electrically connected to the main substrate, and a drive-type driver disposed on the main substrate, wherein the first substrate can be disposed on a first side surface of the housing, and the second substrate can be disposed on a second surface opposite the first side surface, and wherein the drive-type driver can be electrically connected to the driving unit.

[0027] The lens assembly can include a first lens assembly and a second lens assembly, the driving unit can include a first magnet disposed on one of the first lens assembly and the first substrate and a first coil disposed on the other of the first lens assembly and the first substrate, and the driving unit can further include a second magnet disposed on one of the second lens assembly and the second substrate and a second coil disposed on the other of the second lens assembly and the second substrate.

[0028] The first movement distance of the first lens assembly can be greater than the second movement distance of the second lens assembly.

[0029] The driving type driver can be located in a region between the first substrate and the second substrate.

[0030] Advantageous Effects

[0031] According to embodiments of the disclosure, it is possible to implement a camera actuator and a camera device having a reduced size through connection between each substrate provided on a side surface and a main substrate.

[0032] In addition, the disclosure can implement a camera actuator and a camera device having improved reliability because of a connection member located outside without expanding inward.

[0033] In addition, the disclosure can implement a camera actuator capable of being reduced in size through a connection region inclined inward.

[0034] In addition, the disclosure aims to provide a camera actuator and a camera device suitable for a super-thin, super-small, and high-resolution camera. In particular, an actuator for OIS can be effectively disposed without increasing the total size of the camera device.

[0035] According to embodiments of the disclosure, tilting in the X-axis direction and tilting in the Y-axis direction do not interfere with each other in a magnetic field, and tilting in the X-axis direction and tilting in the Y-axis direction can also be implemented through a stable structure and can implement an accurate OIS function without causing magnetic field interference with an actuator for AF or zoom.

[0036] According to embodiments of the disclosure, it is possible to secure a sufficient amount of light by solving a size limitation of a lens, and also to implement OIS with low power consumption.

[0037] The various and advantageous advantages and effects of the disclosure are not limited to the above and will be more easily understood in the description of the specific embodiments of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a perspective view of a camera device according to an embodiment;

[0039] Figure 2 is an exploded perspective view of a camera device according to an embodiment;

[0040] Figure 3 is a cross-sectional view taken along the line AA' in Figure 1

[0041] Figure 4 ​is an exploded perspective view of the first camera actuator according to an embodiment;

[0042] Figure 5 is a perspective view of the first camera actuator according to an embodiment with the protective cover and the substrate removed;

[0043] Figure 6 is a cross-sectional view taken along line B-B' in Figure 5 ;

[0044] Figure 7 is a cross-sectional view taken along line C-C' in Figure 5 ;

[0045] Figure 8 is a perspective view of the second camera actuator according to an embodiment;

[0046] Figure 9 is an exploded perspective view of the second camera actuator according to an embodiment;

[0047] Figure 10 is a cross-sectional view taken along line D-D' in Figure 8 ;

[0048] Figure 11 and Figure 12 are each a view illustrating driving of a lens assembly according to an embodiment;

[0049] Figure 13 is a view illustrating driving of the second camera actuator according to an embodiment;

[0050] Figure 14 is a perspective view showing a second substrate unit of the second camera actuator according to an embodiment;

[0051] Figure 15 is a side view showing the second substrate unit of the second camera actuator according to an embodiment;

[0052] Figure 16 is a perspective view showing a circuit board of the camera device according to an embodiment;

[0053] Figure 17 is an exploded perspective view of the circuit board of the camera device according to an embodiment;

[0054] Figure 18 is a view showing a flexible substrate unit of the circuit board of the camera device according to an embodiment;

[0055] Figure 19 is a top view showing the second driver and the circuit board;

[0056] Figure 20is a perspective view showing the second driver and the circuit board;

[0057] Figure 21 is a side view showing the second driver and the circuit board;

[0058] Figure 22 is another side view showing the second driver and the circuit board;

[0059] Figure 23 is a perspective view of a mobile terminal to which a camera device according to an embodiment is applied; and

[0060] Figure 24 is a perspective view of a vehicle to which a camera module according to an embodiment is applied. DETAILED DESCRIPTION

[0061] The present disclosure can have various embodiments with multiple modifications, and a detailed description will be made with reference to the accompanying drawings.

[0062] However, this is not intended to limit the present disclosure to the specific embodiments, and it should be understood that all modifications, equivalents, and alternatives are included in the subject matter and scope of the present disclosure.

[0063] The terms including ordinal numbers, such as first, second, etc., can be used to indicate various elements, but the elements are not limited by the terms. The terms are used only for the purpose of distinguishing one element from another element. For example, a second element can be called a first element without departing from the scope of the present disclosure, and similarly, a first element can be called a second element. The term "and / or" includes any one or any combination of a plurality of listed items.

[0064] When it is mentioned that certain elements are "coupled with / connected with / to" or "linked with / connected with / to" another element, it will be understood that the elements are coupled or connected to the other element directly or via any other element. On the other hand, when it is mentioned that certain elements are "directly coupled with / connected with / to" or "directly linked with / connected with / to" another element, it will be understood that there is no element interposed between the two elements.

[0065] The terms used in the present disclosure are only used to describe certain embodiments and can not be intended to limit the scope of the present disclosure. Unless otherwise clearly indicated in the context, a singular expression can include a plural expression. In the present disclosure, the terms such as "include", "comprise", and "have" indicate the presence of the stated elements, components, operations, functions, features, etc., but do not exclude the possibility of the presence or addition of one or more elements, components, operations, functions, features, etc.

[0066] Unless otherwise specified, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Among the terms used herein, those defined in a general dictionary may be interpreted as having the same or similar meaning as in the context of the relevant art, and shall not be interpreted as having an ideal or overly formal meaning unless expressly defined herein.

[0067] In the following description, embodiments will be illustrated in detail with reference to the accompanying drawings. Identical or corresponding elements are given the same reference numerals, and repeated descriptions of identical or corresponding elements will be omitted.

[0068] Figure 1 This is a perspective view of the camera device according to the embodiment. Figure 2 This is an exploded perspective view of the camera device according to the embodiment, and Figure 3 It is along Figure 1 The cross-sectional view taken from line AA' in the diagram.

[0069] Reference Figure 1 and Figure 2 The camera device 1000 according to the embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Here, the first camera actuator 1100 may be interchangeably referred to as the first actuator, and the second camera actuator 1200 may be interchangeably referred to as the second actuator.

[0070] The cover CV can cover the first camera actuator 1100 and the second camera actuator 1200. The bonding force between the first camera actuator 1100 and the second camera actuator 1200 can be improved by the cover CV.

[0071] Furthermore, the cover CV can be made of a material that blocks electromagnetic waves. Therefore, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected.

[0072] The first camera actuator 1100 may be an optical image stabilization (OIS) actuator.

[0073] The first camera actuator 1100 may include a fixed-focal-length lens disposed in a predetermined lens barrel (not shown). The fixed-focal-length lens may also be referred to as a "single-focal-length lens" or a "single lens".

[0074] The first camera actuator 1100 can change a path of light. In an embodiment, the first camera actuator 1100 can change the path of light vertically through an optical member (e.g., a mirror) in the first camera actuator 1100. With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration greater than the thickness of the mobile terminal can be provided in the mobile terminal through the change in the path of light, and zoom, auto focus (AF), and OIS functions can be performed.

[0075] The second camera actuator 1200 can be provided at a rear end portion of the first camera actuator 1100. The second camera actuator 1200 can be combined with the first camera actuator 1100. This combination can be made in various ways.

[0076] In addition, the second camera actuator 1200 can be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator 1200 can support one lens or a plurality of lenses, and can perform an auto focus function or a zoom function by moving the lens in response to a control signal of a predetermined controller.

[0077] The circuit board 1300 can be provided at a rear end portion of the second camera actuator 1200. The circuit board 1300 can be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, there can be a plurality of circuit boards 1300.

[0078] The circuit board 1300 can be connected to a second housing of the second camera actuator 1200, and can provide an image sensor. Further, on the circuit board 1300, a base unit including a filter can be provided. This will be described later.

[0079] The camera device according to an embodiment can include a single camera device or a plurality of camera devices. For example, the plurality of camera devices can include a first camera device and a second camera device.

[0080] The first camera device can include a single actuator or a plurality of actuators. For example, the first camera device can include the first camera actuator 1100 and the second camera actuator 1200.

[0081] The second camera device can include an actuator provided in a predetermined housing (not shown) and capable of driving a lens. The actuator can be a voice coil motor, a micro actuator, a silicon actuator, etc., and can be applied in various ways, but is not limited to, for example, an electrostatic type, a thermal energy type, a bimorph type, an electrostatic force type, etc. In addition, in the present specification, the camera actuator can be referred to as an actuator, etc. In addition, the camera device including a plurality of camera devices can be mounted in various electronic devices, such as a mobile terminal.

[0082] Reference Figure 3According to embodiments, the camera device can include a first camera actuator 1100 performing an OIS function and a second camera actuator 1200 performing a zoom function and an auto focus (AF) function.

[0083] Light can be incident into the camera device through an open area located in an upper surface of the first camera actuator 1100. That is, light can be incident into an inside of the first camera actuator 1100 along an optical axis direction (e.g., an X-axis direction), and an optical path can be changed to a vertical direction (e.g., a Z-axis direction) by an optical member. Further, the light can pass through the second camera actuator 1200 and be incident to an image sensor IS located at one end of the second camera actuator 1200 (path).

[0084] In the present specification, a lower surface refers to one side in a first direction. Further, the first direction is an X-axis direction in the drawing and can be used in an exchangeable manner with a second axis direction. The second direction is a Y-axis direction in the drawing and can be used in an exchangeable manner with a first axis direction. The second direction is perpendicular to the first direction. In addition, a third direction is a Z-axis direction in the drawing and can be used in an exchangeable manner with a third axis direction. The third direction is perpendicular to both the first direction and the second direction. The third direction (Z-axis direction) corresponds to an optical axis direction, and the first direction (X-axis direction) and the second direction (Y-axis direction) are perpendicular to the optical axis and can be tilted by the second camera actuator. Detailed descriptions thereof will be given later.

[0085] In the following description of the first camera actuator 1100 and the second camera actuator 1200, the optical axis direction corresponds to an optical path and is the third direction (Z-axis direction), which will be used as a basis for the following description.

[0086] With this configuration, the camera device according to embodiments can improve the spatial restriction of the first camera actuator and the second camera actuator by changing the optical path. That is, in response to the change in the optical path, the camera device according to embodiments can extend the optical path while minimizing the thickness of the camera device. Further, the second camera actuator can provide a wide range of magnification by controlling the focal point, etc., on the extended optical path.

[0087] In addition, the camera device according to embodiments can implement OIS by controlling the optical path by the first camera actuator, thereby minimizing the occurrence of the eccentricity or tilt phenomenon and presenting the best optical performance.

[0088] Further, the second camera actuator 1200 can include an optical system and a lens driving unit. For example, at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin can be disposed in the second camera actuator 1200.

[0089] Also, the second camera actuator 1200 can include a coil and a magnet to perform a high magnification zoom function.

[0090] For example, the first and second lens assemblies can be moving lenses that are moved by a coil, a magnet, and a guide pin, and the third lens assembly can be a fixed lens, but this is not limiting. For example, the third lens assembly can perform the function of a concentrator (focuser) that images light at a specific location, and the first lens assembly can perform the function of a transformer that reimages an image formed by the third lens assembly to another location. At the same time, magnification variation can be large in the first lens assembly because an object distance or an image distance varies greatly, and the first lens assembly as a transformer can play an important role in changing the focal length or magnification of the optical system. On the other hand, the imaging point formed by the first lens assembly as a transformer can be slightly different depending on the location. Therefore, the second lens assembly can perform a location compensation function with respect to the image formed by the transformer. For example, the second lens assembly can perform the function of a compensator that accurately forms the imaging point formed by the first lens assembly as a transformer at the actual image sensor location. For example, the first and second lens assemblies can be driven using electromagnetic force generated by the interaction between the coil and the magnet. The above description can be applied to the lens assembly that will be described later.

[0091] At the same time, when the actuator for OIS and the actuator for AF are disposed according to the embodiment of the disclosure, magnetic field interference with the magnet for AF or zoom can be prevented during OIS operation. Because the first driving magnet of the first camera actuator 1100 is disposed separately from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS can be used in an exchangeable manner with terms such as hand shake correction, optical image stabilization, optical image correction, and shake correction.

[0092] Figure 4 is an exploded perspective view of the first camera actuator according to an embodiment.

[0093] Referring to Figure 4 The first camera actuator 1100 according to an embodiment includes a first boot (not shown), a first housing 1120, a mover 1130, a rotation unit 1140, and a first driving unit 1150.

[0094] The mover 1130 can include a holder 1131 and an optical member 1132 disposed in the holder 1131. The rotation unit 1140 includes a rotation plate 1141, a first magnetic body 1142 having a coupling force with the rotation plate 1141, and a second magnetic body 1143 positioned in the rotation plate 1141. The first driving unit 1150 includes a first driving magnet 1151, a first driving coil 1152, a Hall sensor unit 1153, and a first substrate unit 1154.

[0095] A first shield (not shown) can be positioned on the outermost portion of the first camera actuator 1100 to surround the rotation unit 1140 and the first driving unit 1150, which will be described later.

[0096] The first shield (not shown) can block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of a malfunction in the rotation unit 1140 or the first driving unit 1150 can be reduced.

[0097] The first housing 1120 can be positioned inside the first shield (not shown). In addition, the first housing 1120 can be positioned inside the first substrate unit 1154, which will be described later. The first housing 1120 can be fitted to or fastened to the first shield (not shown).

[0098] The first housing 1120 can be formed of a plurality of housing sides, which can include a first housing side 1121, a second housing side 1122, a third housing side 1123, and a fourth housing side 1124.

[0099] The first housing side 1121 and the second housing side 1122 can be disposed to face each other. In addition, the third housing side 1123 and the fourth housing side 1124 can be disposed between the first housing side 1121 and the second housing side 1122.

[0100] The third housing side 1123 can be in contact with the first housing side 1121, the second housing side 1122, and the fourth housing side 1124. The third housing side 1123 can have a lower surface of the first housing 1120.

[0101] The first housing side 1121 can have a first housing hole 1121a. A first coil 1152a, which will be described later, can be positioned in the first housing hole 1121a.

[0102] The second housing side 1122 can have a second housing hole 1122a. A second coil 1152b, which will be described later, can be positioned in the second housing hole 1122a.

[0103] The first coil 1152a and the second coil 1152b can be combined with the first substrate unit 1154. In an embodiment, the first coil 1152a and the second coil 1152b can be electrically connected to the first substrate unit 1154 so that an electric current can flow. This electric current is a component of an electromagnetic force that allows the first camera actuator to be tilted with respect to the X-axis.

[0104] The third housing side 1123 can have a third housing hole 1123a. A third coil 1152c, which will be described later, can be positioned in the third housing hole 1123a. The third coil 1152c can be combined with the first substrate unit 1154. Also, the third coil 1152c can be electrically connected to the first substrate unit 1154 so that an electric current can flow. This electric current is a component of an electromagnetic force that allows the first camera actuator to be tilted with respect to the Y-axis.

[0105] The fourth housing side 1124 can have a first housing recess 1124a. A first magnetic body 1142, which will be described later, can be disposed in a region corresponding to the first housing recess 1124a. Accordingly, the first housing 1120 can be combined with the rotation plate 1141 by a magnetic force or the like.

[0106] According to an embodiment, the first housing recess 1124a can be located on an inner surface or an outer surface of the fourth housing side 1124. Accordingly, the first magnetic body 1142 can be disposed to correspond to the location of the first housing recess 1124a.

[0107] In addition, the first housing 1120 can have a reception space 1125 formed by the first housing side 1121 to the fourth housing side 1224. The mover 1130 can be positioned in the reception space 1125.

[0108] The mover 1130 includes a holder 1131 and an optical member 1132 mounted on the holder 1131.

[0109] The holder 1131 can be seated in the reception space 1125 of the first housing 1120. The holder 1131 can include first to fourth prismatic outer surfaces corresponding to the first housing side 1121, the second housing side 1122, the third housing side 1123, and the fourth housing side 1124, respectively.

[0110] A recess for seating the second magnetic body 1143 can be formed on the fourth prismatic outer surface facing the fourth housing side 1124.

[0111] The optical member 1132 can be mounted on the holder 1131. To this end, the holder 1131 can have a mounting surface which can be formed by a receiving recess. The optical member 1132 can include a reflector disposed in the optical member 1132. However, this is not limiting. The optical member 1132 can reflect light reflected from the outside (e.g., a target) into the camera device. In other words, the optical member 1132 can change the path of the reflected light, thereby improving the spatial limitation of the first camera actuator and the second camera actuator. Accordingly, the camera device can provide a wide range of magnifications by extending the light path while minimizing the thickness.

[0112] The rotation unit 1140 includes a rotation plate 1141, a first magnetic body 1142 having a coupling force with the rotation plate 1141, and a second magnetic body 1143 positioned in the rotation plate 1141.

[0113] The rotation plate 1141 can be coupled with the mover 1130 and the first housing 1120 described above. The rotation plate 1141 can include an additional magnetic material (not shown) positioned in the rotation plate 1141.

[0114] The rotation plate 1141 can be positioned adjacent to the optical axis. Accordingly, the actuator according to the embodiment can easily change the optical path according to the first axis tilt and the second axis tilt which will be described later.

[0115] The rotation plate 1141 can include first protrusions disposed to be spaced apart in a first direction (X-axis direction) and second protrusions disposed to be spaced apart in a second direction (Y-axis direction). The first protrusions and the second protrusions can protrude in opposite directions. Detailed descriptions of the first protrusions and the second protrusions will be given later.

[0116] The first magnetic body 1142 can include a plurality of magnetic yokes, and the plurality of magnetic yokes can be positioned to face each other with respect to the rotation plate 1141. In an embodiment, the first magnetic body 1142 can be formed of the plurality of magnetic yokes facing each other. In addition, the rotation plate 1141 can be located between the plurality of magnetic yokes.

[0117] The first magnetic body 1142 can be located in the first housing 1120 as described above. In addition, as described above, the first magnetic body 1142 can be seated on the inner surface or the outer surface of the fourth housing side portion 1124. For example, the first magnetic body 1142 can be seated in a recess formed on the outer surface of the fourth housing side portion 1124. Alternatively, the first magnetic body 1142 can be seated in the first housing recess 1124a described above.

[0118] The second magnetic body 1143 can be located on the outer surface of the mover 1130, particularly on the holder 1131. With this configuration, the rotation plate 1141 can be easily coupled with the first housing 1120 and the mover 1130 by the magnetic force between the second magnetic body 1143 and the first magnetic body 1142. In the present disclosure, the positions of the first magnetic body 1142 and the second magnetic body 1143 can be changed from each other.

[0119] The first driving unit 1150 includes a first driving magnet 1151, a first driving coil 1152, a Hall sensor unit 1153, and a first substrate unit 1154.

[0120] The first driving magnet 1151 can include a plurality of magnets. In an embodiment, the first driving magnet 1151 can include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c.

[0121] The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c can be located on the outer surface of the holder 1131, respectively. In addition, the first magnet 1151a and the second magnet 1151b can be positioned to face each other. In addition, the third magnet 1151c can be located on the lower surface among the outer surfaces of the holder 1131. A detailed description of the holder 1131 will be given later.

[0122] The first driving coil 1152 can include a plurality of coils. In an embodiment, the first driving coil 1152 can include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

[0123] The first coil 1152a can be positioned to face the first magnet 1151a. Accordingly, the first coil 1152a can be located in the first housing hole 1121a of the first housing side 1121 as described above.

[0124] In addition, the second coil 1152b can be positioned to face the second magnet 1151b. Accordingly, the second coil 1152b can be located in the second housing hole 1122a of the second housing side 1122 as described above.

[0125] The first coil 1152a can be positioned to face the second coil 1152b. That is, the first coil 1152a and the second coil 1152b can be positioned symmetrically with respect to the first direction (X-axis direction). This can equally apply to the first magnet 1151a and the second magnet 1151b. That is, the first magnet 1151a and the second magnet 1151b can be positioned symmetrically with respect to the first direction (X-axis direction). Also, the first coil 1152a, the second coil 1152b, the first magnet 1151a, and the second magnet 1151b can be disposed to at least partially overlap 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 1152a and the first magnet 1151a and the electromagnetic force between the second coil 1152b and the second magnet 1151b.

[0126] The third coil 1152c can be positioned to face the third magnet 1151c. Accordingly, the third coil 1152c can be positioned in the third housing hole 1123a of the third housing side portion 1123 as described above. The third coil 1152c can perform Y-axis tilting of the mover 1130 and the rotation unit 1140 with respect to the first housing 1120 by generating an electromagnetic force with the third magnet 1151c.

[0127] Here, the X-axis tilting refers to tilting based on the X-axis, and the Y-axis tilting refers to tilting based on the Y-axis.

[0128] The Hall sensor unit 1153 can include a plurality of Hall sensors. The Hall sensor corresponds to and is used in an interchangeable manner with the "sensor unit" which will be described later. In an embodiment, the Hall sensor unit 1153 can include a first Hall sensor 1153a, a second Hall sensor 1153b, and a third Hall sensor 1153c.

[0129] The first Hall sensor 1153a can be located inside the first coil 1152a. Also, the second Hall sensor 1153b can be disposed symmetrically with respect to the first direction (X-axis direction) and the third direction (Z-axis direction) with the first Hall sensor 1153a. Also, the second Hall sensor 1153b can be located inside the second coil 1152b.

[0130] The first Hall sensor 1153a can detect a change in magnetic flux inside the first coil 1153a. Also, the second Hall sensor 1153b can detect a change in magnetic flux in the second coil 1152b. Accordingly, position sensing between the first and second magnets 1151a and 1151b and the first and second Hall sensors 1153a and 1153b can be performed. For example, the first camera actuator according to an embodiment can control X-axis tilting through the first and second Hall sensors 1153a and 1153b.

[0131] The third Hall sensor 1153c can be positioned inside the third coil 1152c. The third Hall sensor 1153c can detect a change in magnetic flux inside the third coil 1152c. Accordingly, position sensing between the third magnet 1151c and the third Hall sensor 1153c can be performed. The first camera actuator according to an embodiment can control Y-axis tilting through the third Hall sensor 1153c.

[0132] The first substrate unit 1154 can be positioned at a lower portion of the first driving unit 1150. The first substrate unit 1154 can be electrically connected to the first driving coil 1152 and the Hall sensor unit 1153. For example, the first substrate unit 1154 can be combined with the first driving coil 1152 and the Hall sensor unit 1153 through SMT. However, this is not limiting.

[0133] The first substrate unit 1154 can be positioned between and combined with the first guard cover (not shown) and the first housing 1120. Various combining manners can be performed as described above. Also, through such combination, the first driving coil 1152 and the Hall sensor unit 1153 can be positioned on an outer surface of the first housing 1120.

[0134] The first substrate unit 1154 can include a circuit board having a wiring pattern for electrical connection, such as a rigid printed circuit board (rigid PCB), a flexible printed circuit board (flexible PCB), or a rigid printed circuit board (rigid flexible PCB). However, these types are not to be construed as limiting.

[0135] A detailed description of the relationship between the Hall sensor unit 1153 and the first substrate unit 1154 will be given later.

[0136] Figure 5 is a perspective view of the first camera actuator according to an embodiment, in which a guard cover and a substrate are removed, Figure 6 is a cross-sectional view taken along Figure 5 line BB' in Figure 7 is a cross-sectional view taken alongFigure 5 a cross-sectional view taken along the line CC' in FIG. 11B.

[0137] Referring to Figure 5 to Figure 7 The first coil 1152a can be positioned on the first housing side 1121.

[0138] The first coil 1152a and the first magnet 1151a can be positioned to face each other. The first magnet 1151a can at least partially overlap the first coil 1152a in the second direction (Y-axis direction).

[0139] In addition, the second coil 1152b can be positioned on the second housing side 1122. Accordingly, the second coil 1152b and the second magnet 1151b can be positioned to face each other. The second magnet 1151b can at least partially overlap the second coil 1152b in the second direction (Y-axis direction).

[0140] In addition, the first coil 1152a and the second coil 1152b can overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b can overlap in the second direction (Y-axis direction). With this configuration, the electromagnetic force applied to the outer surfaces of the holding members (the first holding member outer surface and the second holding member outer surface) is located on parallel axes in the second direction (Y-axis direction), so that X-axis tilting can be accurately and precisely performed.

[0141] In addition, a first receiving groove (not shown) can be formed on the fourth holding member outer surface. In addition, first protrusions PR1a and PR1b can be provided in the first receiving groove. Accordingly, in the case where X-axis tilting is performed, the first protrusions PR1a and PR1b can be a tilting reference axis (or a rotation axis). Accordingly, the rotation plate 1141 and the mover 1130 can move leftward and rightward.

[0142] The second protrusion PR2 can be seated in the groove of the inner surface of the fourth housing side 1124 as described above. In addition, in the case where Y-axis tilting is performed, the rotation plate and the mover can be rotated by the second protrusion PR2, which is a Y-axis tilting reference axis.

[0143] According to an embodiment, OIS can be performed by the first protrusion and the second protrusion.

[0144] Referring to Figure 6 Y-axis tilting can be performed. That is, OIS can be achieved by rotation in the first direction (X-axis direction).

[0145] In an embodiment, the third magnet 1151c disposed below the holder 1131 can tilt or rotate the mover 1130 in the first direction (X-axis direction) by forming an electromagnetic force with the third coil 1152c.

[0146] Specifically, the rotation plate 1141 can be combined with the first housing 1120 and the mover 1130 by the first magnetic body 1142 in the first housing 1120 and the second magnetic body 1143 in the mover 1130. In addition, the first protrusions PR1 can be spaced apart from each other in the first direction (X-axis direction) and supported by the first housing 1120.

[0147] In addition, the rotation plate 1141 can be rotated or tilted by the second protrusion PR2, which is a reference axis (or a rotation axis), protruding toward the mover 1130. That is, the rotation plate 1141 can perform Y-axis tilting with respect to the second protrusion PR2 as a reference axis.

[0148] For example, when the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third recess and the third coil 1152c disposed on the third substrate side portion rotate the mover 1130 in the X-axis direction at a first angle θ1 (X1→X1a or X1b), OIS can be implemented. The first angle θ1 can be ±1° to ±3°. However, this is not limiting.

[0149] Referring to Figure 7 X-axis tilting can be performed. That is, OIS can be implemented by rotation in the second direction (Y-axis direction).

[0150] In the case where the mover 1130 is tilted or rotated in the Y-axis direction (or X-axis tilting), OIS can be implemented.

[0151] In an embodiment, the first magnet 1151a and the second magnet 1151b disposed in the holder 1131 form electromagnetic forces with the first coil 1152a and the second coil 1152b, respectively, thereby tilting or rotating the rotation plate 1141 and the mover 1130 in the second direction (Y-axis direction).

[0152] The rotation plate 1141 can be rotated or tilted in the second direction (or X-axis tilting) by the first protrusion PR1 as a reference axis (or a rotation axis).

[0153] For example, when the second electromagnetic forces F2A and F2B between the first and second magnets 1151a and 1151b disposed in the first recess and the first and second coils 1152a and 1152b disposed on the first and second substrate sides cause the mover 1130 to rotate in the Y-axis direction at a second angle θ2 (Y1→Y1a or Y1b), OIS can be implemented. The second angle θ2 can be ±1° to ±3°. However, this is not limiting.

[0154] As described above, the first actuator according to the embodiment can control the rotation of the rotation plate 1141 and the mover 1130 in the first direction (X-axis direction) or the second direction (Y-axis direction) by the electromagnetic force between the first driving magnet in the holder and the first driving coil disposed in the housing, thereby minimizing the occurrence of eccentricity or tilting phenomena when OIS is implemented and providing the best optical characteristics. In addition, as described above, the "Y-axis tilt" corresponds to the rotation or tilt in the first direction (X-axis direction), and the "X-axis tilt" corresponds to the rotation or tilt in the second direction (Y-axis direction).

[0155] Figure 8 is a perspective view of a second camera actuator according to an embodiment, Figure 9 is an exploded perspective view of a second camera actuator according to an embodiment, Figure 10 is a cross-sectional view taken along line DD' in Figure 8 , Figure 11 and Figure 12 are views each illustrating driving of a lens assembly according to an embodiment, and Figure 13 is a view illustrating driving of a second camera actuator according to an embodiment.

[0156] Referring to Figure 8 to Figure 10 , the second camera actuator 1200 according to the embodiment can include a lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit 1260, and a second substrate unit 1270. In addition, the second camera actuator 1200 can further include a second guard cover (not shown), an elastic portion (not shown), and a coupling member (not shown).

[0157] The second guard cover (not shown) can be located in one area (e.g., the outermost portion) of the second camera actuator 1200 to surround the components (the lens unit 1220, the second housing 1230, the second driving unit 1250, the base unit 1260, the second substrate unit 1270, and the image sensor IS) to be described later.

[0158] The second guard cover (not shown) can block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of malfunctions in the second driving unit 1250 can be reduced.

[0159] The lens unit 1220 can be located in a second boot (not shown). The lens unit 1220 can move in a third direction (Z-axis direction). Accordingly, the AF function described above can be performed.

[0160] In addition, the lens unit 1220 can be located in a second housing 1230. Accordingly, at least a portion of the lens unit 1220 can move in the optical axis direction or the third direction (Z-axis direction) within the second housing 1230.

[0161] Specifically, the lens unit 1220 can include a lens group 1221 and a moving assembly 1222.

[0162] First, the lens group 1221 can include at least one lens. In addition, there can be a plurality of lens groups 1221, but one of the plurality of lens groups 1221 will be described below.

[0163] The lens group 1221 is combined with the moving assembly 1222 and can move in the third direction (Z-axis direction) by electromagnetic force generated from the fourth magnet 1252a and the fifth magnet 1252b combined with the moving assembly 1222.

[0164] In an embodiment, the lens group 1221 can include a first lens group 1221a, a second lens group 1221b, and a second lens group 1221c. The first lens group 1221a, the second lens group 1221b, and the second lens group 1221c can be sequentially disposed in the optical axis direction.

[0165] The first lens group 1221a can be fixedly combined with the second-first housing. In other words, the first lens group 1221a cannot move in the optical axis direction.

[0166] The second lens group 1221b can be combined with the second lens assembly 1222b and move in the third direction or the optical axis direction. By the movement of the second lens group 1221b, the magnification can be adjusted.

[0167] The third lens group 1221c can be combined with the first lens assembly 1222a and move in the third direction or the optical axis direction. By the movement of the third lens group 1221, the focal length can be adjusted.

[0168] However, the number of such lens groups is not limited, and a fourth lens group or the like can also be provided at the rear of the third lens group 1221c. Furthermore, in the second camera actuator, the number of lens assemblies and lens groups can be changed differently.

[0169] The moving assembly 1222 can have an opening area surrounding the lens assembly 1221. The moving assembly 1222 is interchangeably used with the lens assembly. In addition, the moving assembly 1222 can be combined with the lens assembly 1221 by various methods. In addition, the moving assembly 1222 can have a groove in the lateral side of the moving assembly 1222 and can be combined with the fourth magnet 1252a and the fifth magnet 1252b through the groove. A coupling member or the like can be applied to the groove.

[0170] In addition, the moving assembly 1222 can be combined with an elastic portion (not shown) at the upper end and the rear end of the moving assembly 1222. Accordingly, the moving assembly 1222 can be supported by the elastic portion (not shown) when moving in the third direction (Z-axis direction). That is, the position of the moving assembly 1222 can be maintained in the third direction (Z-axis direction). The elastic portion (not shown) can be formed of a leaf spring.

[0171] The moving assembly 1222 is located in the second housing 1230 and can include a first lens assembly 1222a and a second lens assembly 1222b.

[0172] The area of the first lens assembly 1222a in which the third lens group is disposed can be located at the rear end of the second lens assembly 1222b. That is, the area of the first lens assembly 1222a in which the third lens group 1221c is disposed can be located between the area of the second lens assembly 1222b in which the second lens group 1221b is disposed and the image sensor IS.

[0173] The first lens assembly 1222a and the second lens assembly 1222b can include a first guide portion G1 and a second guide portion G2, respectively.

[0174] The first guide portion G1 of the first lens assembly 1222a and the second guide portion G2 of the second lens assembly 1222b can be positioned to correspond to each other. For example, the first guide portion G1 and the second guide portion G2 can be positioned symmetrically with respect to the third direction.

[0175] The first guide portion G1 and the second guide portion G2 can include at least one groove or recess. In addition, the first ball B1 or the second ball B2 can be disposed in the groove or recess. For example, the first ball B1 can be disposed in the groove or recess of the first guide portion G1. In addition, the second ball B2 can be disposed in the groove or recess of the second guide portion G2. In addition, the first ball B1 or the second ball B2 can move in the third direction along a track formed inside the first side 1232a of the second housing 1230 or a track formed inside the second side 1232b of the second housing 1230. Accordingly, the first lens assembly 1222a and the second lens assembly 1222b can move in the third direction.

[0176] The second driving magnets can be disposed on the outer surfaces of the first lens assembly 1222a and the second lens assembly 1222b. For example, the fourth magnet 1252a can be disposed on the outer surface of the first lens assembly 1222a. The fifth magnet 1252b can be disposed on the outer surface of the second lens assembly 1222b.

[0177] The second housing 1230 can be disposed between the lens unit 1220 and a second guard (not shown). Also, the second housing 1230 can be disposed to surround the lens unit 1220.

[0178] The second housing 1230 can include a second-first housing 1231 and a second-second housing 1232. The second-first housing 1231 can be combined with the first lens group 1221a and can also be combined with the first camera actuator described above. The second-first housing 1231 can be positioned at the front of the second-second housing 1232.

[0179] The second-second housing 1232 can be located at the rear of the second-first housing 1231. The lens unit 1220 can be disposed inside the second-second housing 1232.

[0180] The second housing 1230 (or the second-second housing 1232) can have a hole formed in the side of the second housing 1230 (or the second-second housing 1232). The fourth coil 1251a and the fifth coil 1251b can be disposed in the hole. The hole can be positioned to correspond to the groove of the moving assembly 1222 described above.

[0181] In an embodiment, the second housing 1230 can include a first side 1232a and a second side 1232b. The first side 1232a and the second side 1232b can be positioned to correspond to each other. For example, the first side 1232a and the second side 1232b can be symmetrically disposed with respect to the third direction. The second driving coils can be positioned on the first side 1232a and the second side 1232b. Also, the second substrate unit 1270 can be disposed on the outer surfaces of the first side 1232a and the second side 1232b. In other words, the first substrate 1271 can be positioned on the outer surface of the first side 1232a, and the second substrate 1272 can be positioned on the outer surface of the second side 1232b.

[0182] The fourth magnet 1252a can be positioned to face the fourth coil 1251a. Also, the fifth magnet 1252b can be positioned to face the fifth coil 1251b.

[0183] The elastic portion (not shown) can include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) can be coupled with the upper surface of the moving assembly 1222. The second elastic member (not shown) can be coupled with the lower surface of the moving assembly 1222. In addition, the first elastic member (not shown) and the second elastic member (not shown) can be formed of a leaf spring as described above. In addition, the first elastic member (not shown) and the second elastic member (not shown) can provide elasticity with respect to the movement of the moving assembly 1222.

[0184] The second driving unit 1250 can provide a driving force for moving the lens unit 1220 in the third direction (Z-axis direction). The second driving unit 1250 can include a second driving coil 1251 and a second driving magnet 1252.

[0185] The lens unit 1220 can move in the third direction (Z-axis direction) by electromagnetic force formed between the second driving coil 1251 and the second driving magnet 1252.

[0186] The second driving coil 1251 can include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b can be disposed in a hole formed in the side portion of the second housing 1230. In addition, the fourth coil 1251a and the fifth coil 1251b can be electrically connected to the second substrate unit 1270. Accordingly, the fourth coil 1251a and the fifth coil 1251b can receive a current or the like through the second substrate unit 1270.

[0187] The second driving magnet 1252 can include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b can be disposed in the aforementioned recess of the moving assembly 1222 and positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

[0188] The base unit 1260 can be positioned between the lens unit 1220 and the image sensor IS. Components such as a filter can be fixed to the base unit 1260. In addition, the base unit 1260 can be disposed to surround the image sensor IS. With this configuration, the image sensor IS can be protected from foreign substances, and thus the reliability of the device can be improved.

[0189] In addition, the second camera actuator 1200 can be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator can support one or more lenses and can perform an auto focus function or a zoom function by moving the lenses in response to a control signal of a predetermined controller.

[0190] In addition, the second camera actuator can be a fixed zoom or a continuous zoom. For example, the second camera actuator can provide movement of the lens group 1221.

[0191] In addition, the second camera actuator can be formed of a plurality of lens assemblies. For example, in the second camera actuator, at least one of a third lens assembly (not shown) and a guide pin (not shown) can be disposed in addition to the first lens assembly 1222a and the second lens assembly 1222b. In this regard, the above description can be applied. Accordingly, the second camera actuator can perform a high magnification zoom function through the driving unit. For example, the first lens assembly 1222a and the second lens assembly 1222b can be moving lenses that move through the driving unit and the guide pin (not shown), and the third lens assembly (not shown) can be a fixed lens, but this is not limiting. For example, the third lens assembly (not shown) can perform the function of a concentrator (focuser) that images light at a specific position, and the first lens assembly can perform the function of a transformer that reimages an image formed by the third lens assembly (not shown) to another position. Meanwhile, the magnification change can be large in the first lens assembly because the object distance or the image distance changes greatly, and the first lens assembly as a transformer can play an important role in changing the focal length or magnification of the optical system. On the other hand, the imaging point formed by the first lens assembly as a transformer can be slightly different depending on the position. Accordingly, the second lens assembly can perform a position compensation function with respect to the image formed by the transformer. For example, the second lens assembly can perform the function of a compensator that accurately forms the imaging point formed by the first lens assembly 1222a as a transformer at the actual image sensor position. However, the configuration of the present embodiment will be described with reference to the following drawings.

[0192] The image sensor IS can be located inside or outside the second camera actuator. In the embodiment, as illustrated, the image sensor IS can be located inside the second camera actuator. The image sensor IS can receive light and convert the received light into an electrical signal. In addition, the image sensor IS can have a plurality of pixels in the form of an array. In addition, the image sensor IS can be located on the optical axis.

[0193] The second substrate unit 1270 can be in contact with the side portion of the second housing. For example, the second substrate unit 1270 can be located on the outer surface (first side surface) of the first side portion and the outer surface (second side surface) of the second side portion of the second housing, particularly the second-second housing, and can be in contact with the first side surface and the second side surface. Detailed descriptions thereof will be given later.

[0194] Referring to Figure 11 and Figure 12In the camera device according to the embodiment, the fourth magnet 1252a can be disposed on the first lens assembly 1222a in, for example, a vertical magnetization manner. For example, in the embodiment, both the N pole and the S pole of the fourth magnet 1252a can be positioned to face the fourth coil 1251a. Accordingly, the N pole and the S pole of the fourth magnet 1252a can be disposed to correspond to regions in the fourth coil 1251a in which a current flows in the X-axis direction or in the opposite direction to the X-axis direction, respectively.

[0195] In the embodiment, when a magnetic force DM2 is applied from the N pole of the fourth magnet 1252a in the second direction (Y-axis direction) and a current DE2 flows in the first direction (X-axis direction) in the fourth coil 1251a corresponding to the N pole, an electromagnetic force DEM2 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0196] In addition, in the embodiment, when a magnetic force is applied from the S pole of the fourth magnet 1252a in the opposite direction to the second direction (Y-axis direction) and a current DE2 flows in the opposite direction to the first direction (X-axis direction) in the fourth coil 1251a corresponding to the S pole, an electromagnetic force DEM2 can act in the Z-axis direction according to the interaction of electromagnetic forces.

[0197] At this time, because the fourth coil 1251a is fixed to the side portion of the housing, the first lens assembly 1222a in which the fourth magnet 1252a is disposed can move along a track on the inner side portion of the housing in a direction (positive direction) parallel to the Z-axis direction under the action of the electromagnetic force DEM2 according to the direction of the current. In this case, the electromagnetic force DEM2 can be controlled to be proportional to the current DE2 applied to the fourth coil 1251a. In addition, the first lens assembly 1222a can move in the opposite direction to the third direction (Z-axis direction) under the action of the aforementioned electromagnetic force DEM2. In addition, when the aforementioned current flows in the opposite direction, the first lens assembly 1222a can move in the third direction (Z-axis direction).

[0198] Similarly, in the camera device according to the embodiment, an electromagnetic force DEM1 can be generated between the fifth magnet 1252b and the second coil 1251b so that the second lens assembly 1222b can move along a track on the inner side portion of the housing in a direction perpendicular to the optical axis, that is, in the third direction (Z-axis direction) or in the opposite direction to the third direction (Z-axis direction) by the second ball B2.

[0199] Specifically, in the camera device according to the embodiment, the fifth magnet 1252b can be disposed on the second lens assembly 1222b in, for example, a vertical magnetization manner. For example, in the embodiment, both the N pole and the S pole of the fifth magnet 1252b can be positioned to face the fifth coil 1251b. Accordingly, the N pole and the S pole of the fifth magnet 1252b can be disposed to correspond to regions in the fifth coil 1251b in which a current flows in the X-axis direction or in a direction opposite to the X-axis direction, respectively.

[0200] In the embodiment, when a magnetic force is applied from the N pole of the fifth magnet 1252b in a direction opposite to the second direction (Y-axis direction) and a current DE1 flows in the fifth coil 1251b corresponding to the N pole in a direction opposite to the first direction (X-axis direction), an electromagnetic force DEM1 can act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0201] In addition, in the embodiment, when a magnetic force is applied from the S pole of the fifth magnet 1252b in the second direction (Y-axis direction) and a current DE1 flows in the fifth coil 1251b corresponding to the S pole in the first direction (X-axis direction), an electromagnetic force DEM1 can act in the Z-axis direction according to the interaction of electromagnetic forces.

[0202] At this time, because the fifth coil 1251b is fixed to the side portion of the housing, the second lens assembly 1222b in which the fifth magnet 1252b is disposed can move along the track located on the inner side portion of the housing in a direction (positive direction) parallel to the Z-axis direction under the action of the electromagnetic force DEM1 according to the direction of the current. For example, the fifth magnet 1252b can move in a direction opposite to the third direction (Z-axis direction) under the action of the aforementioned electromagnetic force DEM1. In this case, the electromagnetic force DEM1 can be controlled to be proportional to the current DE1 applied to the fifth coil 1251b.

[0203] Referring to Figure 13 In the camera device according to the embodiment, the second driving unit can provide driving forces F3A, F3B, F4A, and F4B for moving the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 in the third direction (Z-axis direction). The second driving unit can include the second driving coil 1251 and the second driving magnet 1252 as described above. In addition, the lens unit 1220 can move in the third direction (Z-axis direction) by an electromagnetic force formed between the second driving coil 1251 and the second driving magnet 1252.

[0204] In this case, the fourth coil 1251a and the fifth coil 1251b can be disposed in holes formed in the side portions (e.g., the first and second side portions) of the second housing 1230. Also, the fourth coil 1251a can be electrically connected to the first substrate 1271. The fifth coil 1251b can be electrically connected to the second substrate 1272. Accordingly, the fourth coil 1251a and the fifth coil 1251b can receive a driving signal (e.g., a current) from a driving driver on the main substrate of the circuit board 1300 through the second board unit 1270.

[0205] At this time, the first lens assembly 1222a in which the fourth magnet 1252a is seated can move in the third direction (Z-axis direction) under the action of electromagnetic forces F4A and F4B between the fourth coil 1251a and the fourth magnet 1252a. Also, the third lens group 1221c seated on the first lens assembly 1222a can also move in the third direction.

[0206] Also, the second lens assembly 1222b in which the fifth magnet 1252b is seated can move in the third direction (Z-axis direction) under the action of electromagnetic forces F3A and F3B between the fifth coil 1251b and the fifth magnet 1252b. Also, the second lens group 1221b seated on the second lens assembly 1222b can also move in the third direction.

[0207] Accordingly, the focal length or magnification of the optical system can be changed by the movement of the second lens group 1221b and the third lens group 1221c as described above. In an embodiment, the magnification can be changed by the movement of the second lens group 1221b. In other words, zooming can be performed. Also, the focal length can be adjusted by the movement of the third lens group 1221c. In other words, auto-focusing can be performed. With this configuration, the second camera actuator can be a fixed zoom or a continuous zoom.

[0208] Figure 14 FIG. 17 is a perspective view illustrating a second board unit of a second camera actuator according to an embodiment, and Figure 15 FIG. 18 is a side view illustrating the second board unit of the second camera actuator according to an embodiment.

[0209] Referring to Figure 14 and Figure 15 As described above, the second board unit 1270 according to an embodiment can include a first substrate 1271 and a second substrate 1272.

[0210] In the second housing, the first substrate 1271 and the second substrate 1272 can be disposed on opposite side surfaces (e.g., first and second side surfaces) of the second housing. Accordingly, the first substrate 1271 and the second substrate 1272 can be spaced apart from each other.

[0211] In an embodiment, a connection member (e.g., a first connection member) can be positioned between the first substrate 1271 and the main substrate. Also, a connection member (e.g., a second connection member) can be positioned between the second substrate 1272 and the main substrate.

[0212] As described above, the fourth coil 1251a can be located on the first side surface of the second housing, and the fifth coil 1251b can be located on the second side surface of the second housing.

[0213] The first substrate 1271 can include a first main area MA1 and a first connection area CA1 divided along the third direction (Z-axis direction). The first connection area CA1 can be in contact with an end portion of the first main area MA1. For example, the first connection area CA1 can be positioned between the first main area MA1 and the main substrate. Also, the first main area MA1 and the first connection area CA1 can be sequentially arranged side by side in the third direction (Z-axis direction).

[0214] Also, the second substrate 1272 can include a second main area MA2 and a second connection area CA2 divided along the third direction (Z-axis direction). The second connection area CA2 can be in contact with an end portion of the second main area MA2. For example, the second connection area CA2 can be positioned between the second main area MA2 and the main substrate. Also, the second main area MA2 and the second connection area CA2 can be sequentially arranged side by side in the third direction (Z-axis direction).

[0215] Also, the first connection area CA1 can be inclined inward with respect to the first main area MA1, and the second connection area CA2 can be inclined inward with respect to the second main area MA2. Here, inward can refer to a direction from the second housing toward the lens unit. Outward can refer to a direction opposite to inward.

[0216] Also, a first separation distance W1 between the first main area MA1 and the second main area MA2 can be different from a second separation distance W2 between the first connection area CA1 and the second connection area CA2. In an embodiment, the first separation distance W1 between the first main area MA1 and the second main area MA2 can be greater than the second separation distance W2 between the first connection area CA1 and the second connection area CA2. With this configuration, the second substrate unit 1270 does not protrude outward compared to the main substrate or the circuit board, so that the total width of the camera module can be minimized. Thus, miniaturization of the camera module can be easily achieved. In this case, the first separation distance W1 and the second separation distance W2 can be lengths in the second direction (Y-axis direction).

[0217] In addition, the first connection area CA1 can include a first connection terminal portion CE1 provided on an outer surface of the first connection area CA1. In addition, the second connection area CA2 can include a second connection terminal portion CE2 provided on an outer surface of the second connection area CA2.

[0218] The first connection terminal portion CE1 and the second connection terminal portion CE2 can be electrically connected to the first substrate terminal portion and the second substrate terminal portion, respectively, by a connection member (e.g., a first connection member and a second connection member). The connection member can be made of an electrically conductive material or include an electrically conductive member. By this, the drive driver on the main substrate can supply a current as a drive signal to the fourth coil 1251a and the fifth coil 1251b. In an embodiment, the drive driver can be provided on the main substrate so that an electrical distance between the drive driver and the fourth coil and an electrical distance between the drive driver and the fifth coil become similar. Thus, correction of the drive signal can be easily performed because of similar noise. In addition, reduction in thrust with respect to movement of the lens unit can be prevented.

[0219] The first substrate 1271 and the second substrate 1272 can be formed of a plurality of layers. For example, the first substrate 1271 and the second substrate 1272 can be composed of flexible portions 1271a and 1272a and rigid portions 1271b and 1272b. The flexible portions 1271a and 1272a can be positioned inward compared to the rigid portions 1271b and 1272b. For example, the flexible portions 1271a and 1272a can be positioned between the spaced apart rigid portions. In addition, the flexible portions 1271a and 1272a can at least partially overlap the rigid portions 1271b and 1272b in the second direction (Y-axis direction). In addition, the rigid portions 1271b and 1272b can improve the bonding force between the housing and the first substrate 1271. In addition, the rigid portions 1271b and 1272b can improve the bonding force between the housing and the second substrate 1272.

[0220] The first substrate 1271 can have a first substrate hole 1271h. The second substrate 1272 can have a second substrate hole 1272h. An adhesive member or the like can be applied in the first substrate hole 1271h and the second substrate hole 1272h. Thus, by the first substrate hole 1271h and the second substrate hole 1272h, the first substrate 1271 and the second substrate 1272 can be easily combined with the second housing, and position alignment can be easily achieved.

[0221] In addition, a magnetic yoke unit can be further provided outside the second substrate unit according to an embodiment. The magnetic yoke unit can include a first magnetic yoke Y1 and a second magnetic yoke Y2. The first magnetic yoke Y1 can be located outside the first substrate 1271, and the second magnetic yoke Y2 can be located outside the second substrate 1272.

[0222] The first yoke Y1 and the second yoke Y2 can easily prevent electromagnetic waves generated by the second driving unit from moving to the outside or can block reverse inflow, and can also improve the bonding force between the second driving coil and the second substrate unit. Thus, the reliability of the camera device can be improved.

[0223] In another embodiment, at least one of the first substrate 1271 and the second substrate 1272 can be integrally formed with the main substrate. Thus, the reliability of the second substrate unit can be improved, and the bonding force between the main substrate and the second substrate unit can be improved.

[0224] Figure 16 is a perspective view showing a circuit board of a camera device according to an embodiment, Figure 17 is an exploded perspective view of a circuit board of a camera device according to an embodiment, and Figure 18 is a view showing a flexible substrate unit of a circuit board of a camera device according to an embodiment.

[0225] The circuit board 1300 of the camera device according to an embodiment can be located at the rear of the second camera actuator described above.

[0226] The circuit board 1300 can include a main substrate 1310, an intermediate substrate 1320, and a connection substrate 1330.

[0227] The main substrate 1310 can be positioned on the optical axis of the second camera actuator. The main substrate 1310 can be combined with the second camera actuator. In addition, the main substrate 1310 can be easily combined with the base unit 1260. The base unit 1260 can surround the image sensor IS and the driving type driver as described above. With this configuration, the base unit 1260 can protect the image sensor IS and the driving type driver, thereby improving the operational reliability of the camera device. In addition, the base unit 1260 can have a filter F seated therein, and the filter F can be positioned to at least partially overlap the image sensor IS in the optical axis or the third direction (Z-axis direction). For example, the filter can block light in the ultraviolet waveband.

[0228] The image sensor IS can be disposed on the main substrate 1310. The image sensor IS can be positioned on the optical axis. In addition, the driving type driver described above can be located on the main substrate 1310. In addition, various elements can be positioned on the main substrate 1310.

[0229] The main substrate 1310 can include a first substrate terminal portion PE1 and a second substrate terminal portion PE2 disposed on an upper surface of the main substrate 1310. The connection member can be seated on the first substrate terminal portion PE1 and the second substrate terminal portion PE2 and can be in contact with the connection terminal portion. Accordingly, the first substrate terminal portion PE1 can be electrically connected to the first connection terminal portion, and the second substrate terminal portion PE2 can be electrically connected to the second connection terminal portion.

[0230] The first substrate terminal portion PE1 and the second substrate terminal portion PE2 can be located outside the base unit 1260.

[0231] The intermediate substrate 1320 can be in contact with the main substrate 1310 and located on a side of the second housing. Accordingly, the intermediate substrate 1320 can be in contact with the above-described second substrate unit. In an embodiment, the intermediate substrate 1320 can be in contact with the second substrate.

[0232] The connection substrate 1330 can be in contact with the intermediate substrate 1320 and spaced apart from the main substrate 1310. The connection substrate 1330 can be electrically connected to an external device or other processor (e.g., a processor of a terminal). Accordingly, a signal from such an external device or processor can be provided to the camera device according to an embodiment.

[0233] In addition, at least some of the above-described main substrate 1310, intermediate substrate 1320, and connection substrate 1330 can be integrally formed. In an embodiment, the main substrate 1310, intermediate substrate 1320, and connection substrate 1330 can be formed of a plurality of layers.

[0234] Each of the main substrate 1310, intermediate substrate 1320, and connection substrate 1330 can be formed of a flexible substrate FP and rigid substrates RP1 and RP2. The flexible substrate FP can be positioned between the rigid substrates RP1 and RP2. With this configuration, the degree of freedom with respect to the shape of the circuit board 1300 can be improved, and reliability can be easily ensured. The flexible substrate FP and the rigid substrates RP1 and RP2 can be electrically connected to each other through a groove or a hole.

[0235] In an embodiment, the main substrate 1310, intermediate substrate 1320, and connection substrate 1330 can have a structure in which the flexible substrates FP of the main substrate 1310, intermediate substrate 1320, and connection substrate 1330 are integrated. The flexible substrate FP can have a structure bent from a lower surface of the second housing along a second side surface of the second substrate or second housing. In this case, the flexible substrate FP can have a protruding region protruding toward the second substrate or in a direction opposite to the second direction. Accordingly, the bonding force and reliability between the main substrate and the intermediate substrate can be maintained accordingly.

[0236] In addition, the flexible substrate FP can extend outward from the second side surface or the second substrate of the second housing. The shape (bending position, etc.) of the circuit board 1300 can be changed differently according to the position and structure of the external device.

[0237] Figure 19 FIG. 17 is a plan view illustrating a second driver and a circuit board, Figure 20 FIG. 18 is a perspective view illustrating a second driver and a circuit board, Figure 21 FIG. 19 is a side view illustrating a second driver and a circuit board, and Figure 22 FIG. 20 is another side view illustrating a second driver and a circuit board.

[0238] Referring to Figure 19 to Figure 22 In the camera device according to the embodiment, the drive type driver DR can be disposed on the circuit board 1300 or the main substrate. In addition, the drive type driver DR can be electrically connected to the first coil and the second coil. In this case, the first substrate 1271 and the second substrate 1272 can be positioned at both end portions of the main substrate. The first substrate 1271 and the second substrate 1272 can be spaced apart from each other by the same distance based on the center of the image sensor IS. That is, the center of the image sensor IS can bisect the distance between the first substrate 1271 and the second substrate 1272.

[0239] The first substrate 1271 and the main substrate 1310 can be spaced apart from each other in the third direction (Z-axis direction). The second substrate 1272 and the main substrate 1310 can be spaced apart from each other in the third direction (Z-axis direction).

[0240] The connection member can connect the first substrate 1271 and the main substrate 1310 to each other, and connect the second substrate 1272 and the main substrate 1310 to each other.

[0241] In the embodiment, the first connection member CC1 can be positioned between the first connection terminal portion CE1 and the first substrate terminal portion PE1. In addition, the second connection member CC2 can be positioned between the second connection terminal portion CE2 and the second substrate terminal portion PE2.

[0242] Accordingly, the first substrate 1271 and the second substrate 1272 are in contact with only the first connection member CC1 and the second connection member CC2, and are not connected to each other through other components. Accordingly, the second lens assembly moved by the fourth coil 1251a connected to the first substrate 1271 and the first lens assembly moved by the fifth coil 1251b connected to the second substrate 1272 can be independently aligned. That is, although moving or shifting for alignment between the second lens assembly and the image sensor, the first lens assembly can neither move nor shift. Conversely, although moving or shifting for alignment between the first lens assembly and the image sensor, the second lens assembly can neither move nor shift. Accordingly, alignment is independently performed, so that loss of pushing force of the second camera actuator can be minimized. Furthermore, because there is no connection between the first substrate 1271 and the second substrate 1272, a problem of an increase in thickness of the camera device due to a protrusion or a fold for connection can also be eliminated.

[0243] In addition, as described above, the connection member can include the first connection member CC1 disposed between the first connection terminal portion CE1 and the first substrate terminal portion PE1 and the second connection member CC2 disposed between the second connection terminal portion CE2 and the second substrate terminal portion PE2.

[0244] In addition, the first connection area CA1 can overlap the first substrate terminal portion PE1. Specifically, the first connection area CA1 can overlap the first substrate terminal portion PE1 in the third direction (Z-axis direction). In other words, the first connection terminal portion CE1 can overlap the first substrate terminal portion PE1 in the third direction.

[0245] In addition, the second connection area CA2 can overlap the second substrate terminal portion PE2. The second connection area CA2 can overlap the second substrate terminal portion PE2 in the third direction (Z-axis direction). In other words, the second connection terminal portion CE2 can overlap the second substrate terminal portion PE2 in the third direction.

[0246] With this configuration, the first connection member CC1 can be easily seated on the first substrate terminal portion PE1 and not extend to the inboard adjacent drive driver DR or image sensor IS. Similarly, the second connection member CC2 can be easily seated on the second substrate terminal portion PE2 and not extend to the inboard adjacent drive driver DR or image sensor IS. Accordingly, reliability of the camera device can be improved. The first connection terminal portion CE1, the second connection terminal portion CE2, the first substrate terminal portion PE1, and the second substrate terminal portion PE2 can be recesses or grooves.

[0247] Further, because the drive driver DR is provided on the main substrate 1310 as described above, a difference between an electrical distance LT1 between the drive driver DR and the fourth coil 1251a and an electrical distance LT2 between the drive driver DR and the fifth coil 1251b can be reduced compared to a case where the drive driver DR is positioned on the second housing side. Thus, because the lengths of the electrical paths are similar to each other, a difference in noise due to a difference in the electrical paths can be reduced, and correction of the drive signal can be easily performed.

[0248] Further, because the drive driver DR is positioned to overlap the first lens assembly and the second lens assembly in the third direction, an influence of heat (heat generated due to operation) applied to the lens unit can be smaller than an influence of heat applied to the lens unit in a case where the drive driver DR is positioned on the side. Thus, the reliability of the camera device can be improved.

[0249] In addition, in the embodiment, the first lens assembly can be positioned between the second lens assembly and the image sensor. That is, a distance between the first lens assembly and the image sensor can be smaller than a distance between the second lens assembly and the image sensor.

[0250] In addition, a first movement distance of the first lens assembly can be smaller than a second movement distance of the second lens assembly. In other words, a distance (first movement distance) by which the first lens assembly moves in the third direction or along the optical axis by the above-described electromagnetic force can be smaller than a distance (second movement distance) by which the second lens assembly moves in the third direction or along the optical axis by the above-described electromagnetic force.

[0251] Thus, heat generated by the drive driver DR is less likely to be applied to the second lens assembly having a large movement distance and a lens group (second lens group) combined with the second lens assembly. Thus, an error in magnification adjustment, which has a large stroke compared to autofocus, can be easily prevented. Thus, an error due to heat generation can be minimized.

[0252] Figure 23 is a perspective view of a mobile terminal to which a camera device according to an embodiment is applied.

[0253] Referring to Figure 23 The mobile terminal 1500 according to the embodiment can include the camera device 1000, a flash module 1530, and an autofocus device 1510 provided on a rear surface of the mobile terminal 1500.

[0254] The camera device 1000 can have an image capturing function and an autofocus function. For example, the camera device 1000 can have an autofocus function using an image.

[0255] The camera device 1000 processes image frames of still images or moving images obtained by an image sensor in a photographing mode or a video call mode.

[0256] The processed image frames can be displayed on a predetermined display unit and stored in a memory. A camera (not shown) can also be provided on a front surface of the mobile terminal.

[0257] For example, the camera device 1000 can include a first camera device 1000 and a second camera device 1000, and can implement OIS and AF or zoom functions together through the first camera device 1000.

[0258] The flash module 1530 can include a light emitting device that emits light in the flash module 1530. The flash module 1530 can operate in response to a camera operation of the mobile terminal or a user's manipulation.

[0259] The auto focus device 1510 can include one of packages of a surface light emitting laser device as a light emitting part.

[0260] The auto focus device 1510 can include an auto focus function using a laser. The auto focus device 1510 can be mainly used in a case where, for example, an auto focus function using an image of the camera device 1000 is degraded in a close distance environment of 10 m or less or in a dark environment.

[0261] The auto focus device 1510 can include a light emitting unit having a vertical cavity surface emitting laser (VCSEL) semiconductor device, and a light receiving unit such as a photodiode that converts light energy into electrical energy.

[0262] Figure 24 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

[0263] For example, Figure 24 is an external view of a vehicle including a vehicle driving assistance device to which a camera device 1000 according to an embodiment is applied.

[0264] Referring to Figure 24 , a vehicle 700 according to an embodiment can include wheels 13FL and 13FR rotated by a power source and a predetermined sensor. The sensor can be, but is not limited to, a camera sensor 2000.

[0265] The camera sensor 2000 can be a camera sensor to which a camera device 1000 according to an embodiment is applied. The vehicle 700 of the embodiment can acquire image information through the camera sensor 2000 that captures a front image or a surrounding image, and generate a virtual lane line by determining a case where an unidentified lane line is not recognized using the image information.

[0266] For example, the camera sensor 2000 can obtain a front image by capturing a front portion of the vehicle 700, and a processor (not shown) can analyze objects contained in the front image to obtain image information.

[0267] For example, if the image captured by the camera sensor 2000 contains objects such as lane lines, adjacent vehicles, traveling obstacles, and indirect road signs such as a center line, a curb, or a street tree, the processor can detect these objects and include them in the image information. In this case, the processor can obtain distance information from the detected objects through the camera sensor 2000, and thereby further supplement the image information.

[0268] The image information can be information about objects captured in an image. The camera sensor 2000 can include an image sensor and an image processing module.

[0269] The camera sensor 2000 can process still images or moving images obtained through the image sensor (for example, CMOS or CDD).

[0270] The image processing module can process still images or moving images obtained through the image sensor, extract necessary information, and transmit the extracted information to the processor.

[0271] In this case, the camera sensor 2000 can include, but is not limited to, a stereo camera to improve object measurement accuracy and further secure information such as a distance between the vehicle 700 and an object.

[0272] Although it has been described based on the embodiments so far, this is only exemplary and does not limit the present disclosure, and it will be understood by those skilled in the art to which the present disclosure pertains that various modifications and applications not described above are possible without departing from the scope of the subject matter of the present disclosure. For example, various elements specifically shown in the embodiments can be implemented by modification. Differences related to these modifications and applications should be interpreted as included in the scope of the present disclosure defined in the appended claims.

Claims

1. A camera device, comprising: case; Lens assembly, the lens assembly including at least one lens; A driving unit that moves the lens assembly; A main substrate on which an image sensor is disposed; as well as A first substrate and a second substrate, electrically connected to the driving unit and spaced apart from each other on opposite side surfaces of the housing. The main substrate includes a first connecting member connected to the first substrate and a second connecting member connected to the second substrate. The first substrate includes a first main region and a first connection region that contacts the end of the first main region. The second substrate includes a second main region and a second connection region that contacts the end of the second main region.

2. The camera device according to claim 1, wherein, The driving unit includes a driving coil and a driving magnet positioned to face the driving coil. The drive coil includes a first coil disposed on a first side surface of the housing and a second coil disposed on a second side surface of the housing, and The driving magnet includes a first magnet corresponding to the first coil and a second magnet corresponding to the second coil.

3. The camera device according to claim 2, further comprising: A drive driver, wherein the drive driver is disposed on the main substrate, The drive driver is electrically connected to the first coil and the second coil.

4. The camera device according to claim 3, further comprising: A base unit surrounding the image sensor and the driving driver located on the main substrate.

5. The camera device according to claim 1, wherein, The first connecting region is tilted inward relative to the first main region. The second connecting region is inclined inward relative to the second main region, and The first interval distance between the first main region and the second main region is greater than the second interval distance between the first connecting region and the second connecting region.

6. The camera device according to claim 1, wherein, The first connection area includes a first connection terminal portion disposed on the outer surface, and The second connection area includes a second connection terminal portion disposed on the outer surface.

7. The camera device according to claim 6, wherein, The main substrate includes a first substrate terminal portion and a second substrate terminal portion disposed on the upper surface of the main substrate. The first connection area overlaps with the first substrate terminal portion, and The second connection area overlaps with the second substrate terminal portion.

8. The camera device according to claim 7, wherein, The first connecting member is disposed between the first connecting terminal portion and the first substrate terminal portion, and The second connecting member is disposed between the second connecting terminal portion and the second substrate terminal portion.

9. The camera device according to claim 1, wherein, The lens assembly includes: The second lens assembly, and A first lens assembly is disposed between the second lens assembly and the image sensor, and The first movement distance of the first lens assembly is greater than the second movement distance of the second lens assembly.

10. The camera device according to claim 1, wherein, The first connecting member and the second connecting member include conductive members.

11. The camera device according to any one of claims 1 to 10, further comprising a drive driver disposed on the main substrate. in, The drive-type driver is electrically connected to the drive unit.

12. The camera device according to claim 11, wherein, The lens assembly includes a first lens assembly and a second lens assembly. The driving unit includes a first magnet disposed on one of the first lens assembly and the first substrate, and a first coil disposed on the other of the first lens assembly and the first substrate. The driving unit further includes a second magnet disposed on one of the second lens assembly and the second substrate, and a second coil disposed on the other of the second lens assembly and the second substrate.

13. The camera device according to claim 12, wherein, The first movement distance of the first lens assembly is greater than the second movement distance of the second lens assembly.

14. The camera device according to claim 12, wherein, The drive driver is located in the region between the first substrate and the second substrate.

Images