Camera actuator and camera device including the same

Abstract

An embodiment of the present invention discloses a camera device including a housing, a lens assembly including at least one lens, a drive unit that moves the lens assembly, a main board on which an image sensor is provided, and first and second boards that are electrically connected to the drive unit and spaced apart from each other on opposite sides of the housing, and the main board includes a first connecting means connected to the first board and a second connecting means connected to the second board.

Description

[Technical Field]

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

[0002] A camera is a device that takes photos or videos of a subject and is attached to a mobile device, drone, vehicle, etc. To improve the quality of images, a camera device or camera module may have an image stabilization (IS) function that corrects or prevents image shake caused by user movement, an autofocus (AF) function that automatically adjusts the distance between the image sensor and lens to align the focal length of the lens, and a zooming function that increases or decreases the magnification of a distant subject through a zoom lens.

[0003] Meanwhile, the higher the pixel count of an image sensor, the higher the resolution and the smaller the pixel size, but the smaller the pixel size, the less light it receives in a given amount of time. Therefore, the higher the pixel count of a camera, the more severe the image blur caused by camera shake that occurs when the shutter speed slows down in dark environments. One of the most well-known image stabilization (IS) technologies is optical image stabilizer (OIS), which corrects movement by changing the path of light.

[0004] According to a general OIS technology, the movement of the camera is detected through a gyrosensor or the like, and the lens is tilted or moved based on the detected movement, or the camera device including the lens and the image sensor is tilted or moved. When the lens or the camera device including the lens and the image sensor is tilted or moved for the OIS, additional space for the tilting or movement needs to be secured around the lens or the camera device.

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

[0006] However, due to the needs of ultra-slim and ultra-compact camera devices, there are significant spatial constraints on the placement of actuators for OIS, and it may be difficult to ensure sufficient space for the lens, or the camera device itself including the lens and image sensor, to tilt or move for OIS. Also, the higher the pixel count of a camera, the larger the lens size is preferred to increase the amount of light received, but there may be a limit to how large the lens size can be due to the space occupied by the actuator for OIS.

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

[0008] The technical problem to be solved by the present invention is to provide a compact camera actuator and camera device through connections between each board disposed on the side and the main board.

[0009] The present invention also provides a camera actuator and a camera device with improved reliability, since the connecting means located on the outside is not spread inward.

[0010] The present invention also provides a camera actuator that can be miniaturized through an inwardly angled coupling region.

[0011] The present invention also provides a camera actuator and a camera device that are applicable to ultra-slim, ultra-compact, and high-resolution cameras.

[0012] The problems to be solved in the examples are not limited to these, but may also include the means for solving the problems and the purposes and effects grasped from the embodiments described below. [Means for solving the problem]

[0013] A camera device according to an embodiment of the present invention includes a housing, a lens assembly including at least one lens, a driving unit that moves the lens assembly, a main board on which an image sensor is provided, and first and second boards that are electrically connected to the driving unit and spaced apart from each other on opposite sides of the housing, and the main board includes a first connecting means connected to the first board and a second connecting means connected to the second board.

[0014] The driving unit includes a driving coil and a driving magnet positioned facing the driving coil, the driving coil including a first coil arranged on a first side of the housing and a second coil arranged on a second side of the housing, and the driving magnet including a first magnet corresponding to the first coil and a second magnet corresponding to the second coil.

[0015] The display device may further include a driver disposed on the main board, the driver being electrically connected to the first coil and the second coil.

[0016] The image sensor may further include a base portion that encases the image sensor and the driver on the main substrate.

[0017] The first substrate may include a first main region and a first connecting region in contact with an end of the first main region, and the second substrate may include a second main region and a second connecting region in contact with an end of the second main region.

[0018] The first connecting region may be inclined inward relative to the first main region, the second connecting region may be inclined inward relative to the second main region, and a first separation distance between the first main region and the second main region may be greater than a second separation distance between the first connecting region and the second connecting region.

[0019] The first connecting region may include a first connecting terminal portion disposed on an outer surface, and the second connecting region may include a second connecting terminal portion disposed on an outer surface.

[0020] The main substrate may include a first substrate terminal portion and a second substrate terminal portion arranged on an upper surface, and the first connecting region may overlap the first substrate terminal portion and the second connecting region may overlap the second substrate terminal portion.

[0021] The first connecting means may be disposed between the first connecting terminal portion and the first substrate terminal portion, and the second connecting means may be disposed between the second connecting terminal portion and the second substrate terminal portion.

[0022] The lens assembly may include a second lens assembly and a first lens assembly disposed between the second lens assembly and an image sensor, and a first movement distance of the first lens assembly may be greater than a second movement distance of the second lens assembly.

[0023] The first and second connecting means may include a conductive member.

[0024] A camera device according to an embodiment includes a housing, a lens assembly including at least one lens, a driving unit for moving the lens assembly, a main board on which an image sensor is provided, a first board and a second board electrically connected to the main board, and a driving driver arranged on the main board, wherein the first board is arranged on a first side of the housing, the second board is arranged on a second side opposite the first side, and the driving driver is electrically connected to the driving unit.

[0025] The lens assembly may include a first lens assembly and a second lens assembly, and the driving unit may include a first magnet disposed on either the first lens assembly or the first substrate, and a first coil disposed on the other, and may further include a second magnet disposed on either the second lens assembly or the second substrate, and a second coil disposed on the other.

[0026] A first travel distance of the first lens assembly may be greater than a second travel distance of the second lens assembly.

[0027] The driver may be located in a region between the first substrate and the second substrate. [Effects of the Invention]

[0028] According to an embodiment of the present invention, a small camera actuator and a camera device can be implemented through connections between each board disposed on the side and the main board.

[0029] Furthermore, the present invention can realize a camera actuator and a camera device with improved reliability, since the connecting means located on the outside is not spread inward.

[0030] Furthermore, the present invention can realize a camera actuator that can be miniaturized through the inwardly inclined connection region.

[0031] According to an embodiment of the present invention, it is possible to provide a camera actuator and a camera device that are applicable to ultra-slim, ultra-compact, and high-resolution cameras. In particular, it is possible to efficiently arrange an OIS actuator without increasing the overall size of the camera device.

[0032] According to an embodiment of the present invention, tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference with each other, so tilting in the X-axis direction and tilting in the Y-axis direction can be realized with a stable structure, and there is no magnetic field interference with the AF or zooming actuators, so precise OIS function can be realized.

[0033] According to the embodiment of the present invention, it is possible to eliminate the limitation of the lens size, ensure a sufficient amount of light, and realize an OIS with low power consumption.

[0034] The various advantageous and beneficial effects of the present invention are not limited to the above-mentioned contents, but will be more easily understood in the course of describing specific embodiments of the present invention. [Brief explanation of the drawings]

[0035] [Figure 1] FIG. 1 is a perspective view of a camera device according to an embodiment. [Figure 2] FIG. 1 is an exploded perspective view of a camera device according to an embodiment. [Figure 3] FIG. 2 is a cross-sectional view taken along the line AA′ in FIG. [Figure 4] FIG. 2 is an exploded perspective view of a first camera actuator according to an embodiment. [Figure 5] FIG. 10 is a perspective view of a first camera actuator according to an embodiment with the shielding can and substrate removed. [Figure 6] FIG. 6 is a cross-sectional view taken along line BB' in FIG. 5. [Figure 7] FIG. 6 is a cross-sectional view taken along the line CC′ in FIG. 5. [Figure 8] FIG. 10 is a perspective view of a second camera actuator according to an embodiment. [Figure 9]FIG. 10 is an exploded perspective view of a second camera actuator according to an embodiment. [Figure 10] FIG. 9 is a cross-sectional view taken along the line DD′ in FIG. 8. [Figure 11] 5A to 5C are diagrams illustrating the driving of each lens assembly according to the embodiment. [Figure 12] 5A to 5C are diagrams illustrating the driving of each lens assembly according to the embodiment. [Figure 13] 10A and 10B are diagrams illustrating the driving of the second camera actuator according to the embodiment. [Figure 14] FIG. 10 is a perspective view showing a second substrate portion of the second camera actuator according to the embodiment. [Figure 15] FIG. 10 is a side view showing a second substrate portion of the second camera actuator according to the embodiment. [Figure 16] FIG. 2 is a perspective view showing a circuit board of the camera device according to the embodiment. [Figure 17] FIG. 2 is an exploded perspective view of a circuit board of the camera device according to the embodiment. [Figure 18] 3A and 3B are diagrams illustrating a flexible substrate portion of a circuit board of a camera device according to an embodiment. [Figure 19] FIG. 4 is a top view showing a second drive unit and a circuit board. [Figure 20] FIG. 4 is a perspective view showing a second driving unit and a circuit board. [Figure 21] FIG. 10 is a side view showing a second driving unit and a circuit board. [Figure 22] FIG. 10 is another side view showing the second drive unit and the circuit board. [Figure 23] 1 is a perspective view of a mobile terminal to which a camera device according to an embodiment is applied; [Figure 24] 1 is a perspective view of a vehicle to which a camera device according to an embodiment is applied; DETAILED DESCRIPTION OF THE INVENTION

[0036] The present invention can be modified in various ways and can have various embodiments, and specific embodiments will be illustrated and described in the drawings. It is not intended to be limited to the embodiments, but should be understood to include any modifications, equivalents, or alternatives that fall within the spirit and technical scope of the present invention.

[0037] Terms including ordinal numbers, such as "second," "first," etc., may be used to describe various components, but the components are not limited by these terms. Terms are used solely to distinguish one component from another. For example, a second component can be referred to as a first component, and similarly, a first component can be referred to as a second component, without departing from the scope of the present invention. The term "and / or" includes a combination of multiple associated listed items or any of multiple associated listed items.

[0038] When a component is referred to as being "coupled" or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, but that there may be other components in between. On the other hand, when a component is referred to as being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components in between.

[0039] The terms used in this application are merely used to describe specific embodiments and are not intended to limit the present invention. The singular expressions also include the plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preclude the possibility of the presence or addition of one or more additional features, numbers, steps, operations, components, parts, or combinations thereof.

[0040] Unless otherwise specified, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms commonly used and dictionary-defined should be interpreted to have a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly stated otherwise in this application.

[0041] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Regardless of the reference numerals in the drawings, the same or corresponding components will be given the same reference numerals, and redundant descriptions thereof will be omitted.

[0042] FIG. 1 is a perspective view of a camera device according to an embodiment, FIG. 2 is an exploded perspective view of the camera device according to the embodiment, and FIG. 3 is a cross-sectional view taken along line AA′ in FIG.

[0043] 1 and 2, a camera device 1000 according to an embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Here, the first camera actuator 1100 may be used interchangeably with the first actuator, and the second camera actuator 1200 may be used interchangeably with the second actuator.

[0044] The cover CV can cover the first camera actuator 1100 and the second camera actuator 1200. The cover CV can improve the coupling force between the first camera actuator 1100 and the second camera actuator 1200.

[0045] Furthermore, the cover CV may be made of a material that blocks electromagnetic waves, which makes it easy to protect the first camera actuator 1100 and the second camera actuator 1200 inside the cover CV.

[0046] The first camera actuator 1100 may be an OIS (Optical Image Stabilizer) actuator.

[0047] The first camera actuator 1100 may include a fixed focal length lens disposed in a predetermined lens barrel (not shown). A fixed focal length lens may also be referred to as a "single focal length lens" or "single lens."

[0048] The first camera actuator 1100 can change the path of light. In this embodiment, the first camera actuator 1100 can change the path of light vertically through an internal optical member (e.g., a mirror). With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal can be disposed in the mobile terminal through the change in the path of light, thereby enabling magnification, autofocusing (AF), and OIS functions to be performed.

[0049] The second camera actuator 1200 may be disposed after the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. The coupling therebetween may be performed in various ways.

[0050] The second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator 1200 may support one or more lenses and move the lenses in response to a control signal from a predetermined control unit to perform an auto focus function or a zoom function.

[0051] The circuit board 1300 may be disposed after the second camera actuator 1200. The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. Also, there may be a plurality of circuit boards 1300.

[0052] The circuit board 1300 may be connected to the second housing of the second camera actuator 1200 and may have an image sensor mounted thereon. A base including a filter may also be mounted on the circuit board 1300, which will be described later.

[0053] The camera device according to the embodiment may consist of a single camera device or multiple camera devices. For example, the multiple camera devices may include a first camera device and a second camera device.

[0054] The first camera device may include a single actuator or multiple actuators. For example, the first camera device may include a first camera actuator 1100 and a second camera actuator 1200.

[0055] The second camera device may include an actuator (not shown) disposed in a predetermined housing (not shown) and capable of driving the lens unit. The actuator may be a voice coil motor, a microactuator, a silicon actuator, or the like, and may be applied in various ways, such as an electrostatic type, a thermal type, a bimorph type, or an electrostatic force type, but is not limited thereto. In addition, in this specification, a camera actuator may be referred to as an actuator, etc. Furthermore, a camera device consisting of multiple camera devices may be mounted in various electronic devices such as a mobile terminal.

[0056] Referring to FIG. 3, the camera device according to the embodiment may include a first camera actuator 1100 that performs an OIS function and a second camera actuator 1200 that performs a zooming function and an AF (Auto-Focusing) function.

[0057] Light may enter the camera device through an opening region located on the top surface of the first camera actuator 1100. That is, the light may enter the interior of the first camera actuator 1100 along the optical axis direction (e.g., the X-axis direction), and the light path may be changed to a vertical direction (e.g., the Z-axis direction) through an optical member. The light may then pass through the second camera actuator 1200 and enter the image sensor IS located at one end of the second camera actuator 1200 (PATH).

[0058] In this specification, the bottom surface refers to one side in the first direction. The first direction is the X-axis direction in the drawing, and may be interchangeable with the second-axis direction, etc. The second direction is the Y-axis direction in the drawing, and may be interchangeable with the first-axis direction, etc. The second direction is a direction perpendicular to the first direction. The third direction is the Z-axis direction in the drawing, and may be interchangeable with the third-axis direction, etc. The third direction is a direction perpendicular to both the first and second directions. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and can be tilted by a second camera actuator. This will be described in detail later.

[0059] In the following description of first camera actuator 1100 and second camera actuator 1200, the optical axis direction corresponds to the optical path and is the third direction (Z-axis direction), and the following description will be based on this.

[0060] With this configuration, the camera device according to the embodiment can improve the spatial limitations of the first and second camera actuators by changing the optical path. That is, the camera device according to the embodiment can expand the optical path while minimizing the thickness of the camera device by changing the optical path. Furthermore, it should be understood that the second camera actuator can provide a wide range of magnification by controlling the focus, etc., in the expanded optical path.

[0061] In addition, the camera device according to the embodiment can implement OIS by controlling the optical path through the first camera actuator, thereby minimizing the occurrence of decentering and tilt phenomena and achieving the best optical characteristics.

[0062] Furthermore, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, the second camera actuator 1200 may include at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin.

[0063] Also, the second camera actuator 1200 includes a coil and a magnet, and can perform a highly efficient zooming function.

[0064] For example, the first and second lens assemblies may be moving lenses that move via coils, magnets, and guide pins, and the third lens assembly may be a fixed lens, but is not limited thereto. For example, the third lens assembly may function as a condenser, focusing light at a specific position, and the first lens assembly may function as a variator, refocusing the image focused by the third lens assembly (the condenser) at another location. The first lens assembly may experience significant changes in the distance to the subject or the image distance, resulting in significant changes in magnification. The first lens assembly (the variator) plays an important role in changing the focal length or magnification of the optical system. The image point focused by the first lens assembly (the variator) may vary slightly depending on its position. Therefore, the second lens assembly may perform a position compensation function for the image focused by the variator. For example, the second lens assembly may function as a compensator, which accurately focuses an image point formed by the first lens assembly, which is a magnification variable, onto the actual position of the image sensor. For example, the first lens assembly and the second lens assembly may be driven by electromagnetic force generated by the interaction between a coil and a magnet. The above description may be applied to the lens assemblies described below.

[0065] Furthermore, when an OIS actuator and an AF or Zoom actuator are arranged according to an embodiment of the present invention, magnetic field interference with the AF or Zoom magnet can be prevented when the OIS is driven. Since the first driving magnet of the first camera actuator 1100 is arranged 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 interchangeably with terms such as image stabilization, optical image stabilization, optical image correction, and shake correction.

[0066] FIG. 4 is an exploded perspective view of a first camera actuator according to an embodiment.

[0067] Referring to FIG. 4, a first camera actuator 1100 according to the embodiment includes a first shielding can (not shown), a first housing 1120 , a mover 1130 , a rotating unit 1140 , and a first driving unit 1150 .

[0068] The mover 1130 may include a holder 1131 and an optical member 1132 mounted on the holder 1131. The rotating part 1140 includes a rotating plate 1141, a first magnetic body 1142 that has a coupling force with the rotating plate 1141, and a second magnetic body 1143 located within the rotating plate 1141. The first driving part 1150 includes a first driving magnet 1151, a first driving coil 1152, a Hall sensor part 1153, and a first substrate part 1154.

[0069] The first shielding can (not shown) may be positioned at the outermost side of the first camera actuator 1100 to enclose a rotating unit 1140 and a first driving unit 1150, which will be described later.

[0070] Such a first shielding can (not shown) can block or reduce externally generated electromagnetic waves, thereby reducing the occurrence of malfunctions in the rotating part 1140 or the first driving part 1150.

[0071] The first housing 1120 may be located inside a first shielding can (not shown). The first housing 1120 may also be located inside a first substrate unit 1154 (described later). The first housing 1120 may be fitted or engaged with the first shielding can (not shown) to be fastened together.

[0072] The first housing 1120 may be comprised of multiple housing sides, including a first housing side 1121, a second housing side 1122, a third housing side 1123, and a fourth housing side 1124.

[0073] The first housing side 1121 and the second housing side 1122 can be disposed opposite each other, and 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.

[0074] The third housing side 1123 may 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 may include a bottom surface as a lower side of the first housing 1120.

[0075] The first housing side portion 1121 may include a first housing hole 1121a in which a first coil 1152a (described later) may be located.

[0076] The second housing side portion 1122 may also include a second housing hole 1122a in which a second coil 1152b (described later) may be located.

[0077] The first coil 1152a and the second coil 1152b may be coupled to the first substrate unit 1154. In this embodiment, the first coil 1152a and the second coil 1152b may be electrically connected to the first substrate unit 1154 and a current may flow through them. This current is an element of electromagnetic force that allows the first camera actuator to tilt about the X-axis.

[0078] The third housing side portion 1123 may also include a third housing hole 1123a. A third coil 1152c (described later) may be positioned in the third housing hole 1123a. The third coil 1152c may be coupled to the first substrate portion 1154. The third coil 1152c may be electrically connected to the first substrate portion 1154 so that a current may flow through the third coil 1152c. This current is an element of electromagnetic force that allows the first camera actuator to tilt about the Y-axis.

[0079] The fourth housing side 1124 may include a first housing groove 1124a. A first magnetic body 1142, which will be described later, may be disposed in an area facing the first housing groove 1124a. Accordingly, the first housing 1120 may be coupled to the rotation plate 1141 by magnetic force or the like.

[0080] Furthermore, according to the embodiment, the first housing groove 1124a may be located on the inner surface or outer surface of the fourth housing side portion 1124. Accordingly, the first magnetic body 1142 may also be disposed to correspond to the position of the first housing groove 1124a.

[0081] The first housing 1120 may also include a receiving portion 1125 formed by the first to fourth housing side portions 1121 to 1224. The receiving portion 1125 may accommodate a mover 1130.

[0082] The mover 1130 includes a holder 1131 and an optical member 1132 mounted on the holder 1131 .

[0083] The holder 1131 can be seated in the receiving portion 1125 of the first housing 1120. The holder 1131 can include first to fourth prism outer surfaces corresponding to the first housing side portion 1121, the second housing side portion 1122, the third housing side portion 1123, and the fourth housing side portion 1124, respectively.

[0084] The outer surface of the fourth prism facing the fourth housing side portion 1124 may have a seating groove in which the second magnetic body 1143 can be seated.

[0085] The optical member 1132 may be mounted on the holder 1131. To this end, the holder 1131 may have a mounting surface, which may be formed as a receiving groove. The optical member 1132 may include a reflecting portion disposed therein. However, the optical member 1132 may be configured to reflect light reflected from the outside (e.g., an object) back into the camera device. That is, the optical member 1132 may change the path of the reflected light to improve the spatial limitations of the first and second camera actuators. It should be understood that the camera device may thereby be able to provide a high range of magnification by expanding the light path while minimizing its thickness.

[0086] The rotating part 1140 includes a rotating plate 1141 , a first magnetic body 1142 that has a binding force with the rotating plate 1141 , and a second magnetic body 1143 that is located within the rotating plate 1141 .

[0087] The rotating plate 1141 may be coupled to the mover 1130 and the first housing 1120. The rotating plate 1141 may include an additional magnetic body (not shown) located therein.

[0088] Furthermore, the rotating plate 1141 can be disposed adjacent to the optical axis, which allows the actuator according to the embodiment to easily change the optical path in response to the first and second axis tilts described below.

[0089] The rotation plate 1141 may include a first protrusion spaced apart in a first direction (X-axis direction) and a second protrusion spaced apart in a second direction (Y-axis direction). The first protrusion and the second protrusion may protrude in opposite directions, which will be described in detail later.

[0090] Also, the first magnetic body 1142 may include a plurality of yokes, and the plurality of yokes may be positioned to face each other with respect to the rotating plate 1141. In an embodiment, the first magnetic body 1142 may be made up of a plurality of yokes facing each other, and the rotating plate 1141 may be positioned between the plurality of yokes.

[0091] As described above, the first magnetic body 1142 may be located within the first housing 1120. Also, as described above, the first magnetic body 1142 may be seated on the inner surface or outer surface of the fourth housing side portion 1124. For example, the first magnetic body 1142 may be seated in a groove formed on the outer surface of the fourth housing side portion 1124. Alternatively, the first magnetic body 1142 may be seated in the first housing groove 1124a described above.

[0092] The second magnetic body 1143 may be located on the outer surface of the mover 1130, particularly the holder 1131. With this configuration, the rotating plate 1141 can be easily coupled to the first housing 1120 and the mover 1130 by the coupling force caused by the magnetic force between the second magnetic body 1143 and the first magnetic body 1142 inside. In the present invention, the positions of the first magnetic body 1142 and the second magnetic body 1143 may be moved relative to each other.

[0093] 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 .

[0094] The first driving magnet 1151 may include a plurality of magnets, such as a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c.

[0095] The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may be positioned on the outer surface of the holder 1131. The first magnet 1151a and the second magnet 1151b may be positioned to face each other. The third magnet 1151c may be positioned on the bottom surface of the outer surface of the holder 1131. This will be described in detail later.

[0096] The first drive coil 1152 may include a plurality of coils, such as a first coil 1152a, a second coil 1152b, and a third coil 1152c.

[0097] The first coil 1152a may be positioned to face the first magnet 1151a, so that the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side portion 1121 as described above.

[0098] Also, the second coil 1152b may be positioned to face the second magnet 1151b, so that the second coil 1152b may be positioned in the second housing hole 1122a of the second housing side portion 1122 as described above.

[0099] The first coil 1152a may be positioned to face the second coil 1152b. That is, the first coil 1152a may be positioned symmetrically with the second coil 1152b with respect to the first direction (X-axis direction). This also applies to the first magnet 1151a and the second magnet 1151b. That is, the first magnet 1151a and the second magnet 1151b may be positioned symmetrically with respect to the first direction (X-axis direction). Furthermore, the first coil 1152a, the second coil 1152b, the first magnet 1151a, and the second magnet 1151b may be positioned to at least partially overlap with each other in the second direction (Y-axis direction). With this configuration, the X-axis tilt can be accurately performed without tilting to one side due to 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.

[0100] The third coil 1152c may be positioned to face the third magnet 1151c. As a result, the third coil 1152c may be positioned in the third housing hole 1123a of the third housing side portion 1123, as described above. The third coil 1152c generates an electromagnetic force with the third magnet 1151c, allowing the mover 1130 and the rotating portion 1140 to tilt about the Y axis with respect to the first housing 1120.

[0101] Here, the X-axis tilt means tilting with respect to the X-axis, and the Y-axis tilt means tilting with respect to the Y-axis.

[0102] The hall sensor unit 1153 may include a plurality of hall sensors. The hall sensors correspond to and are interchangeable with the "sensor unit" described below. In an embodiment, the hall sensor unit 1153 may include a first hall sensor 1153a, a second hall sensor 1153b, and a third hall sensor 1153c.

[0103] The first Hall sensor 1153a may be positioned inside the first coil 1152a. The second Hall sensor 1153b may be disposed symmetrically with the first Hall sensor 1153a in the first direction (X-axis direction) and the third direction (Z-axis direction). The second Hall sensor 1153b may be positioned inside the second coil 1152b.

[0104] The first Hall sensor 1153a can sense changes in magnetic flux inside the first coil 1152a. The second Hall sensor 1153b can sense changes in magnetic flux in the second coil 1152b. This allows position sensing between the first and second magnets 1151a and 1151b and the first and second Hall sensors 1153a and 1153b. For example, the first camera actuator according to this embodiment can control the X-axis tilt through the first and second Hall sensors 1153a and 1153b.

[0105] In addition, the third Hall sensor 1153c may be located inside the third coil 1152c. The third Hall sensor 1153c may detect a change in magnetic flux inside the third coil 1152c. This allows position sensing between the third magnet 1151c and the third Hall sensor 1153c to be performed. The first camera actuator according to this embodiment may control the Y-axis tilt through this.

[0106] The first substrate unit 1154 may be located below the first driving unit 1150. The first substrate unit 1154 may be electrically connected to the first driving coil 1152 and the Hall sensor unit 1153. For example, the first substrate unit 1154 may be coupled to the first driving coil 1152 and the Hall sensor unit 1153 by SMT, but is not limited to this method.

[0107] The first substrate unit 1154 is located between the first shielding can (not shown) and the first housing 1120 and can be coupled to the first shielding can and the first housing 1120. As described above, various coupling methods are possible. Through this coupling, the first driving coil 1152 and the Hall sensor unit 1153 can be positioned within the outer surface of the first housing 1120.

[0108] The first substrate unit 1154 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), a rigid-flexible printed circuit board (RigidFlexible PCB), etc. However, it is not limited to these types.

[0109] The specific details between the hall sensor unit 1153 and the first substrate unit 1154 will be described later.

[0110] FIG. 5 is an oblique view of the first camera actuator according to an embodiment in which the shielding can and substrate have been removed, FIG. 6 is a cross-sectional view taken along line BB' in FIG. 5, and FIG. 7 is a cross-sectional view taken along line CC' in FIG. 5.

[0111] 5 to 7, the first coil 1152a may be located on the first housing side portion 1121.

[0112] The first coil 1152a and the first magnet 1151a may be positioned opposite each other. The first magnet 1151a may at least partially overlap with the first coil 1152a in the second direction (Y-axis direction).

[0113] Also, the second coil 1152b may be positioned on the second housing side 1122. As a result, the second coil 1152b and the second magnet 1151b may be positioned facing each other. The second magnet 1151b may at least partially overlap the second coil 1152b in the second direction (Y-axis direction).

[0114] 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 holders (the outer surfaces of the first holder and the second holder) is positioned on an axis parallel to the second direction (Y-axis direction), allowing for accurate and precise X-axis tilting.

[0115] In addition, a first receiving groove (not shown) may be located on the outer surface of the fourth holder. First protrusions PR1a and PR1b may be disposed in the first receiving groove. Accordingly, when tilting along the X axis, the first protrusions PR1a and PR1b may serve as the tilt reference axis (or rotation axis). This allows the rotating plate 1141 and the mover 1130 to move left and right.

[0116] As described above, the second protrusion PR2 can be seated in the groove on the inner surface of the fourth housing side portion 1124. When tilting along the Y axis, the rotation plate and the mover can rotate with the second protrusion PR2 as the reference axis for tilting along the Y axis.

[0117] According to an embodiment, the first protrusion and the second protrusion can perform OIS.

[0118] 6, Y-axis tilting can be performed, i.e., OIS can be implemented by rotating in a first direction (X-axis direction).

[0119] In this embodiment, a third magnet 1151c disposed under the holder 1131 generates an electromagnetic force together with a third coil 1152c to tilt or rotate the mover 1130 in the first direction (X-axis direction).

[0120] Specifically, the rotating plate 1141 may be coupled to the first housing 1120 and the mover 1130 by a first magnetic body 1142 in the first housing 1120 and a second magnetic body 1143 in the mover 1130. The first protrusions PR1 may be spaced apart in the first direction (X-axis direction) and supported by the first housing 1120.

[0121] The rotation plate 1141 can rotate or tilt around the second protrusion PR2 that protrudes toward the mover 1130 as a reference axis (or rotation axis). That is, the rotation plate 1141 can tilt around the Y axis around the second protrusion PR2 as a reference axis.

[0122] For example, the mover 1130 may be rotated in the X-axis direction at a first angle θ1 (X1 → X1a or X1b) by a first electromagnetic force F1A, F1B between the third magnet 1151c disposed in the third seating groove and the third coil 1152c disposed on the side of the third substrate, thereby realizing OIS. The first angle θ1 may be ±1° to ±3°, but is not limited thereto.

[0123] 7, X-axis tilting can be performed, i.e., OIS can be implemented by rotating in the second direction (Y-axis direction).

[0124] OIS can be implemented by tilting or rotating the mover 1130 in the Y-axis direction (or tilting in the X-axis direction).

[0125] In this embodiment, the first magnet 1151a and the second magnet 1151b arranged on the holder 1131 can form electromagnetic forces with the first coil 1152a and the second coil 1152b, respectively, to tilt or rotate the rotating plate 1141 and the mover 1130 in the second direction (Y-axis direction).

[0126] The rotation plate 1141 can rotate or tilt (X-axis tilt) in the second direction with the first protrusion PR1 as a reference axis (or rotation axis).

[0127] For example, the mover 1130 may be rotated by a second angle θ2 (Y1->Y1a or Y1b) in the Y-axis direction by a second electromagnetic force F2A, F2B between the first and second magnets 1151a, 1151b disposed in the first seating grooves and the first and second coil units 1152a, 1152b disposed on the sides of the first and second substrates, thereby realizing OIS. The second angle θ2 may be ±1° to ±3°, but is not limited thereto.

[0128] As described above, the first actuator according to this embodiment controls the rotation of the rotating plate 1141 and the mover 1130 in a first direction (X-axis direction) or a 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 decentering and tilting phenomena when implementing the OIS and providing the best optical characteristics. Also, as described above, "Y-axis tilt" corresponds to rotation or tilting in the first direction (X-axis direction), and "X-axis tilt" corresponds to rotation or tilting in the second direction (Y-axis direction).

[0129] Figure 8 is a perspective view of the second camera actuator according to the embodiment, Figure 9 is an exploded perspective view of the second camera actuator according to the embodiment, Figure 10 is a cross-sectional view taken along line DD' in Figure 8, Figures 11 and 12 are diagrams explaining each drive of the lens assembly according to the embodiment, and Figure 13 is a diagram explaining the drive of the second camera actuator according to the embodiment.

[0130] 8 to 10, the second camera actuator 1200 according to the embodiment may include a lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit 1260, and a second substrate unit 1270. Furthermore, the second camera actuator 1200 may further include a second shielding can (not shown), an elastic unit (not shown), and a joint member (not shown).

[0131] The second shielding can (not shown) is located in one area (e.g., the outermost) of the second camera actuator 1200 and can be positioned to enclose the components described below (lens unit 1220, second housing 1230, second drive unit 1250, base unit 1260, second substrate unit 1270, and image sensor IS).

[0132] Such a second shielding can (not shown) can block or reduce externally generated electromagnetic waves, thereby reducing the occurrence of malfunctions in the second driving part 1250.

[0133] The lens unit 1220 may be located within a second shielding can (not shown). The lens unit 1220 may be movable in a third direction (Z-axis direction), thereby enabling the above-described AF function to be performed.

[0134] Furthermore, the lens unit 1220 can be positioned within the second housing 1230. This allows at least a portion of the lens unit 1220 to move within the second housing 1230 along the optical axis direction or the third direction (Z-axis direction).

[0135] Specifically, the lens unit 1220 may include a lens group 1221 and a moving assembly 1222 .

[0136] First, the lens group 1221 can include at least one lens. Also, although there can be a plurality of lens groups 1221, the following description will be given based on one lens group.

[0137] The lens group 1221 is coupled to the moving assembly 1222 and can move in the third direction (Z-axis direction) by the electromagnetic force generated by the fourth magnet 1252a and the fifth magnet 1252b coupled to the moving assembly 1222.

[0138] In an embodiment, the lens group 1221 may 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 may be sequentially arranged along the optical axis direction.

[0139] The first lens group 1221a may be coupled to and fixed in the 2-1 housing, that is, the first lens group 1221a may not move along the optical axis direction.

[0140] The second lens group 1221b is coupled to the second lens assembly 1222b and can move in a third direction or in the optical axis direction. The movement of the second lens group 1221b can adjust the magnification.

[0141] The third lens group 1221c is coupled to the first lens assembly 1222a and can move in a third direction or in the optical axis direction b. The movement of the third lens group 1221c can perform focus adjustment.

[0142] However, the number of lens groups is not limited to this, and a fourth lens group, etc. may be further disposed after the third lens group 1221c. Furthermore, in such a second camera actuator, the number of lens assemblies and lens groups may be changed in various ways.

[0143] The moving assembly 1222 may include an opening that encloses the lens group 1221. Such a moving assembly 1222 may be used in combination with the lens assembly. The moving assembly 1222 may be coupled to the lens group 1221 in various ways. The moving assembly 1222 may also include grooves on its side, through which the fourth magnet 1252a and the fifth magnet 1252b may be coupled. A bonding material or the like may be applied to the grooves.

[0144] In addition, the moving assembly 1222 may be coupled to elastic portions (not shown) at its upper and rear ends. As a result, the moving assembly 1222 may move in the third direction (Z-axis direction) but be supported by the elastic portions (not shown). That is, the position of the moving assembly 1222 may be maintained in the third direction (Z-axis direction). The elastic portions (not shown) may be made of leaf springs.

[0145] The translation assembly 1222 is located within a second housing 1230 and can include a first lens assembly 1222a and a second lens assembly 1222b.

[0146] The area where the third lens group 1221c is mounted in the first lens assembly 1222a may be located behind the second lens assembly 1222b. That is, the area where the third lens group 1221c is mounted in the first lens assembly 1222a may be located between the area where the second lens group 1221b is mounted in the second lens assembly 1222b and the image sensor.

[0147] The first lens assembly 1222a and the second lens assembly 1222b may include a first guide portion G1 and a second guide portion G2, respectively.

[0148] The first guide portion G1 of the first lens assembly 1222a and the second guide portion G2 of the second lens assembly 1222b may be positioned to correspond to each other. For example, the first guide portion G1 and the second guide portion G2 may be positioned symmetrically with respect to the third direction.

[0149] The first guide portion G1 and the second guide portion G2 may include at least one groove or recess. The first ball B1 or the second ball B2 may be seated in the groove or recess. For example, the first ball B1 may be seated in the groove or recess of the first guide portion G1. The second ball B2 may be seated in the groove or recess of the second guide portion G2. The first ball B1 or the second ball B2 may move in the third direction along a rail formed on the inner surface of the first side portion 1232a of the second housing 1230 or a rail formed on the inner surface of the second side portion 1232b of the second housing 1230. This allows the first lens assembly 1222a and the second lens assembly 1222b to move in the third direction.

[0150] Second driving magnets may be mounted on outer surfaces of the first lens assembly 1222a and the second lens assembly 1222b. For example, a fourth magnet 1252a may be mounted on the outer surface of the first lens assembly 1222a, and a fifth magnet 1252b may be mounted on the outer surface of the second lens assembly 1222b.

[0151] The second housing 1230 may be disposed between the lens unit 1220 and a second shielding can (not shown), and may be disposed to surround the lens unit 1220.

[0152] The second housing 1230 may include a second housing 1231 and a second housing 1232. The second housing 1231 may be coupled to the first lens group 1221a and may also be coupled to the first camera actuator described above. The second housing 1231 may be located in front of the second housing 1232.

[0153] The second housing 1232 may be located behind the first housing 1231. The lens unit 1220 may be seated inside the second housing 1232.

[0154] The second housing 1230 (or the second housing 1232) may have holes formed in its side. The fourth coil 1251a and the fifth coil 1251b may be disposed in the holes. The holes may be positioned to correspond to the grooves of the moving assembly 1222 described above.

[0155] In the embodiment, the second housing 1230 may include a first side portion 1232a and a second side portion 1232b. The first side portion 1232a and the second side portion 1232b may be positioned corresponding to each other. For example, the first side portion 1232a and the second side portion 1232b may be arranged symmetrically with respect to the third direction. A second driving coil may be positioned on the first side portion 1232a and the second side portion 1232b. A second substrate portion 1270 may be mounted on the outer surfaces of the first side portion 1232a and the second side portion 1232b. That is, the first substrate 1271 may be positioned on the outer surface of the first side portion 1232a, and the second substrate 1272 may be positioned on the outer surface of the second side portion 1232b.

[0156] The fourth magnet 1252a may be positioned to face the fourth coil 1251a, and the fifth magnet 1252b may be positioned to face the fifth coil 1251b.

[0157] The elastic portion (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to an upper surface of the moving assembly 1222. The second elastic member (not shown) may be coupled to a lower surface of the moving assembly 1222. The first elastic member (not shown) and the second elastic member (not shown) may be formed of leaf springs, as described above. The first elastic member (not shown) and the second elastic member (not shown) may provide elasticity for the movement of the moving assembly 1222.

[0158] The second driving unit 1250 may provide a driving force for moving the lens unit 1220 in the third direction (Z-axis direction). The second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252.

[0159] The electromagnetic force generated between second drive coil 1251 and second drive magnet 1252 allows lens portion 1220 to move in the third direction (Z-axis direction).

[0160] The second driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in a hole formed in a side of the second housing 1230. The fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate unit 1270. Thus, the fourth coil 1251a and the fifth coil 1251b may be supplied with current through the second substrate unit 1270.

[0161] The second drive magnet 1252 may include a fourth magnet 1252 a and a fifth magnet 1252 b. The fourth magnet 1252 a and the fifth magnet 1252 b may be disposed in the above-mentioned grooves of the moving assembly 1222 and may be positioned to correspond to the fourth coil 1251 a and the fifth coil 1251 b.

[0162] The base portion 1260 can be located between the lens portion 1220 and the image sensor IS. Components such as a filter can be fixed to the base portion 1260. The base portion 1260 can also be arranged to surround the image sensor IS. With this configuration, the image sensor IS is free from foreign matter and the like, which can improve the reliability of the element.

[0163] The second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator may support one or more lenses and move the lenses in response to a control signal from a predetermined control unit to perform an auto focus function or a zoom function.

[0164] And 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.

[0165] Furthermore, the second camera actuator may be composed of multiple lens assemblies. For example, in addition to the first lens assembly 1222a and the second lens assembly 1222b, the second camera actuator may be provided with at least one of a third lens assembly (not shown) and a guide pin (not shown). The same applies to this. As a result, the second camera actuator may perform a highly adjustable zoom function through a driver. For example, the first lens assembly 1222a and the second lens assembly 1222b may be moving lenses that move through a driver and a guide pin (not shown), and the third lens assembly (not shown) may be a fixed lens, but is not limited thereto. For example, the third lens assembly (not shown) may function as a condenser that focuses light at a specific position, and the first lens assembly may function as a variator that refocuses the image focused by the third lens assembly (not shown), which is a condenser, at another location. On the other hand, the first lens assembly may experience a large change in magnification due to a large change in the distance to the subject or the image distance, and the first lens assembly, which is a magnifier, may play an important role in changing the focal length or magnification of the optical system. The image point formed by the first lens assembly, which is a magnifier, may vary slightly depending on the position. Therefore, the second lens assembly may perform a position compensation function for the image formed by the magnifier. For example, the second lens assembly may function as a compensator, which accurately focuses the image point formed by the first lens assembly, which is a magnifier, at the actual position of the image sensor. The configuration of this embodiment will be described with reference to the following drawings.

[0166] The image sensor IS may be located inside or outside the second camera actuator. In the illustrated embodiment, the image sensor IS may be located inside the second camera actuator. The image sensor IS may receive light and convert the received light into an electrical signal. The image sensor IS may also be configured with a plurality of pixels arranged in an array. The image sensor IS may be located on the optical axis.

[0167] The second substrate unit 1270 may contact the side of the second housing. For example, the second substrate unit 1270 may be located on the outer surface of the first side (first side surface) and the outer surface of the second side (second side surface) of the second housing, particularly the second-2nd housing, and may contact the first side and the second side. This will be described in more detail below.

[0168] 11 and 12, in the camera device according to the embodiment, the fourth magnet 1252a may be provided to the first lens assembly 1222a by, for example, a vertical magnetization method. For example, in the embodiment, both the north and south poles of the fourth magnet 1252a may be positioned to face the fourth coil 1251a. Accordingly, the north and south poles of the fourth magnet 1252a may be arranged to correspond to regions of the fourth coil 1251a where current flows in the X-axis direction or the opposite direction.

[0169] In an embodiment, when a magnetic force DM2 is applied in the second direction (Y-axis direction) from the N pole of the fourth magnet 1252a and a current DE2 flows in the first direction (X-axis direction) from the fourth coil 1251a corresponding to the N pole, an electromagnetic force DEM2 can act in the third direction (Z-axis direction) due to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0170] Furthermore, in the embodiment, when a magnetic force is applied in the opposite direction to the second direction (Y-axis direction) from the S pole of the fourth magnet 1252a, and a current DE2 flows in the opposite direction to the first direction (X-axis direction) from the fourth coil 1251a corresponding to the S pole, an electromagnetic force DEM2 can act in the Z-axis direction due to the interaction of the electromagnetic forces.

[0171] At this time, since the fourth coil 1251a is fixed to the side of the housing, the first lens assembly 1222a, on which the fourth magnet 1252a is disposed, can move along a rail located on the inner surface of the second housing via the first ball B1 in a direction parallel to the z-axis (both directions) due to the electromagnetic force DEM2 according to the direction of the current. At this time, the electromagnetic force DEM2 can be controlled in proportion to the current DE2 applied to the fourth coil 1251a. Furthermore, the first lens assembly 1222a can move in the opposite direction to the third direction (Z-axis direction) due to the above-mentioned electromagnetic force DEM2. Furthermore, when the above-mentioned current flows in the opposite direction, the first lens assembly 1222a can move in the third direction (Z-axis direction).

[0172] Similarly, in the camera device according to the embodiment, an electromagnetic force DEM1 is generated between the fifth magnet 1252b and the fifth coil portion 1251b, and the second lens assembly 1222b can move horizontally to the optical axis, i.e., in the third direction (Z-axis direction) or in the direction opposite to the third direction, along a rail located on the inner surface of the housing through the second ball B2.

[0173] Specifically, in the camera device according to the embodiment, the fifth magnet 1252b may be provided to the second lens assembly 1222b by, for example, a vertical magnetization method. For example, in the embodiment, the north and south poles of the fifth magnet 1252b may both be positioned to face the fifth coil 1251b. Accordingly, the north and south poles of the fifth magnet 1252b may be positioned to correspond to the region where current flows from the fifth coil 1251b in the X-axis direction or the opposite direction.

[0174] In the embodiment, when a magnetic force is applied from the N pole of the fifth magnet 1252b in the opposite direction to the second direction (Y-axis direction), and a current DE1 flows from the fifth coil 1251b corresponding to the N pole in the opposite direction to the first direction (X-axis direction), an electromagnetic force DEM1 can act in the third direction (Z-axis direction) due to the interaction of electromagnetic forces (for example, Fleming's left-hand rule).

[0175] Furthermore, in the embodiment, when a magnetic force is applied in the second direction (Y-axis direction) from the S pole of the fifth magnet 1252b and a current DE1 flows in the first direction (X-axis direction) from the fifth coil 1251b corresponding to the S pole, an electromagnetic force DEM1 can act in the Z-axis direction due to the interaction of the electromagnetic forces.

[0176] At this time, since the fifth coil 1251b is fixed to the side of the housing, the second lens assembly 1222b, in which the fifth magnet 1252b is disposed, can move along a rail located on the inner surface of the housing via the second ball B2 in a direction parallel to the z-axis (both directions) due to the electromagnetic force DEM1 according to the direction of the current. For example, the fifth magnet 1252b can move in the direction opposite to the third direction (Z-axis direction) due to the above-mentioned electromagnetic force DEM1. At this time, the electromagnetic force DEM1 can be controlled in proportion to the current DE1 applied to the fifth coil 1251b.

[0177] 13, in the camera apparatus according to the embodiment, the second driving unit may provide driving forces F3A, F3B, F4A, and F4B that move the first lens assembly 1222a and the second lens assembly 1222b of the lens unit 1220 along the third direction (Z-axis direction). As described above, the second driving unit may include the second driving coil 1251 and the second driving magnet 1252. The lens unit 1220 may move along the third direction (Z-axis direction) due to the electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

[0178] In this case, the fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in the sides (e.g., the first side and the second side) of the second housing 1230. The fourth coil 1251a may be electrically connected to the first board 1271. The fifth coil 1251b may be electrically connected to the second board 1272. As a result, the fourth coil 1251a and the fifth coil 1251b may receive a driving signal (e.g., a current) from a driving driver on the main board of the circuit board 1300 through the second board unit 1270.

[0179] At this time, the first lens assembly 1222a on which the fourth magnet 1252a is mounted can move along the third direction (Z-axis direction) due to electromagnetic forces F4A and F4B between the fourth coil 1251a and the fourth magnet 1252a. Also, the third lens group 1221c mounted on the first lens assembly 1222a can move along the third direction.

[0180] The second lens assembly 1222b on which the fifth magnet 1252b is mounted can move along the third direction (Z-axis direction) due to electromagnetic forces F3A and F3B between the fifth coil 1251b and the fifth magnet 1252b, and the second lens group 1221b mounted on the second lens assembly 1222b can also move along the third direction.

[0181] Accordingly, as described above, the focal length or magnification of the optical system can be changed by moving the second lens group 1221b and the third lens group 1221c. In this embodiment, the magnification can be changed by moving the second lens group 1221b, i.e., zooming can be performed. Furthermore, the focus can be adjusted by moving the third lens group 1221c, i.e., autofocusing can be performed. With this configuration, the second camera actuator can be a fixed zoom or a continuous zoom.

[0182] FIG. 14 is a perspective view showing the second substrate portion of the second camera actuator according to the embodiment, and FIG. 15 is a side view showing the second substrate portion of the second camera actuator according to the embodiment.

[0183] 14 and 15, as described above, the second substrate unit 1270 according to the embodiment may include a first substrate 1271 and a second substrate 1272.

[0184] The first substrate 1271 and the second substrate 1272 may be disposed on opposite sides (e.g., first and second sides) of the second housing within the second housing, so that the first substrate 1271 and the second substrate 1272 may be spaced apart from each other.

[0185] In an embodiment, a connection means (e.g., a first connection means) may be located between the first substrate 1271 and the main substrate, and a connection means (e.g., a second connection means) may be located between the second substrate 1272 and the main substrate.

[0186] The fourth coil 1251a may be located on a first side of the second housing, as described above, and the fifth coil 1251b may be located on a second side of the second housing.

[0187] The first substrate 1271 may include a first main region MA1 and a first connecting region CA1 defined along the third direction (Z-axis direction). The first connecting region CA1 may be adjacent to an end of the first main region MA1. For example, the first connecting region CA1 may be located between the first main region MA1 and the main substrate. The first main region MA1 and the first connecting region CA1 may be arranged sequentially in line along the third direction (Z-axis direction).

[0188] The second substrate 1272 may include a second main region MA2 and a second connecting region CA2 defined along the third direction (Z-axis direction). The second connecting region CA2 may be adjacent to an end of the second main region MA2. For example, the second connecting region CA2 may be located between the second main region MA2 and the main substrate. The second main region MA2 and the second connecting region CA2 may be arranged sequentially in line along the third direction (Z-axis direction).

[0189] The first connecting region CA1 may be inclined inward relative to the first main region MA1, and the second connecting region CA2 may be inclined inward relative to the second main region MA2. Here, the inward direction may be the direction from the second housing toward the lens portion, and the outward direction may be the opposite direction to the inward direction.

[0190] In addition, the first separation distance W1 between the first main region MA1 and the second main region MA2 may be different from the second separation distance W2 between the first connecting region CA1 and the second connecting region CA2. In one embodiment, the first separation distance W1 between the first main region MA1 and the second main region MA2 may be greater than the second separation distance W2 between the first connecting region CA1 and the second connecting region CA2. With this configuration, the second substrate unit 1270 does not protrude outward compared to the main substrate or circuit board, thereby minimizing the overall width of the camera device. This facilitates miniaturization of the camera device. In this case, the first separation distance W1 and the second separation distance W2 may be lengths in the second direction (Y-axis direction).

[0191] The first connecting region CA1 may include a first connecting terminal portion CE1 disposed on an outer surface, and the second connecting region CA2 may include a second connecting terminal portion CE2 disposed on an outer surface.

[0192] The first connecting terminal portion CE1 and the second connecting terminal portion CE2 may be electrically connected to the first substrate terminal portion and the second substrate terminal portion, respectively, through connecting means (e.g., first connecting means and second connecting means). The connecting means may be made of a conductive material or may include a conductive member. Through this, the driver on the main substrate may supply a current, which is a driving signal, to the fourth coil 1251a and the fifth coil 1251b. In this embodiment, the driver is disposed on the main substrate, so that the electrical distance between the driver and the fourth coil and the electrical distance between the driver and the fifth coil may be similar. This allows noise to be similar, making it easy to correct the driving signal. In addition, it is possible to prevent a decrease in thrust force due to movement of the lens unit.

[0193] The first substrate 1271 and the second substrate 1272 may be composed of multiple layers. For example, the first substrate 1271 and the second substrate 1272 may be composed of flexible portions 1271a and 1272a and rigid portions 1271b and 1272b. The flexible portions 1271a and 1272a may be located more inward than the rigid portions 1271b and 1272b. For example, the flexible portions 1271a and 1272a may be located between the spaced apart rigid portions. The flexible portions 1271a and 1272a may at least partially overlap the rigid portions 1271b and 1272b in the second direction (Y-axis direction). The rigid portions 1271b and 1272b may improve the bonding strength between the housing and the first substrate 1271. The rigid portions 1271b and 1272b may improve the bonding strength between the housing and the second substrate 1272.

[0194] The first substrate 1271 may include a first substrate hole 1271h. The second substrate 1272 may include a second substrate hole 1272h. An adhesive material or the like may be applied to the first substrate hole 1271h and the second substrate hole 1272h. Thus, the first substrate 1271 and the second substrate 1272 may be easily coupled to the second housing through the first substrate hole 1271h and the second substrate hole 1272h, and alignment may be easily performed.

[0195] In addition, according to the embodiment, a yoke unit may be further disposed on the outer side of the second substrate unit. The yoke unit may include a first yoke Y1 and a second yoke Y2. The first yoke Y1 may be located on the outer side of the first substrate 1271, and the second yoke Y2 may be located on the outer side of the second substrate 1272.

[0196] The first yoke Y1 and the second yoke Y2 can easily prevent electromagnetic waves generated by the second driving unit from moving outward or blocking their inflow in the opposite direction, thereby further improving the coupling strength between the second driving coil and the second substrate unit, thereby improving the reliability of the camera device.

[0197] In another embodiment, at least one of the first substrate 1271 and the second substrate 1272 may be integrally formed with the main substrate, thereby improving the reliability of the second substrate unit and the bonding strength between the main substrate and the second substrate unit.

[0198] FIG. 16 is a perspective view showing a circuit board of a camera device according to an embodiment, FIG. 17 is an exploded perspective view of the circuit board of a camera device according to an embodiment, and FIG. 18 is a diagram showing a flexible substrate portion of the circuit board of a camera device according to an embodiment.

[0199] The circuit board 1300 of the camera device according to the embodiment can be located after the second camera actuator described above.

[0200] The circuit board 1300 may include a main board 1310 , an intermediate board 1320 and a connecting board 1330 .

[0201] The main board 1310 may be positioned in the optical axis direction of the second camera actuator. The main board 1310 may be coupled to the second camera actuator. The main board 1310 may be easily coupled to the base 1260. The base 1260 may encase the image sensor IS and the driver, as described above. This configuration allows the base 1260 to protect the image sensor IS and the driver, thereby improving the operational reliability of the camera device. The filter F may be mounted on the base 1260 and positioned to at least partially overlap the image sensor IS in the optical axis direction or the third direction (Z-axis direction). For example, the filter may block light in the ultraviolet wavelength range.

[0202] An image sensor IS may be disposed on the main substrate 1310. The image sensor IS may be located on the optical axis. The above-mentioned driver may also be located on the main substrate 1310. Various elements may also be located on the main substrate 1310.

[0203] The main substrate 1310 may include a first substrate terminal portion PE1 and a second substrate terminal portion PE2 disposed on an upper surface thereof. Connection means may be mounted on the first substrate terminal portion PE1 and the second substrate terminal portion PE2, and the connection means may contact the first and second connecting terminal portions. Thus, the first substrate terminal portion PE1 may be electrically connected to the first connecting terminal portion, and the second substrate terminal portion PE2 may be electrically connected to the second connecting terminal portion.

[0204] The first substrate terminal portion PE1 and the second substrate terminal portion PE2 may be located outside the base portion 1260.

[0205] The intermediate substrate 1320 may be in contact with the main substrate 1310 and may be located on a side of the second housing. This allows the intermediate substrate 1320 to be in contact with the second substrate portion described above. In this embodiment, the intermediate substrate 1320 may be in contact with the second substrate.

[0206] The connection board 1330 may be in contact with the intermediate board 1320 and spaced apart from the main board 1310. The connection board 1330 may be electrically connected to an external device or another processor (e.g., a processor of a terminal device), so that a signal from the external device or another processor may be provided to the camera device according to the embodiment.

[0207] The main substrate 1310, the intermediate substrate 1320, and the connecting substrate 1330 may be at least partially integrated. In an embodiment, the main substrate 1310, the intermediate substrate 1320, and the connecting substrate 1330 may be made up of multiple layers.

[0208] The main substrate 1310, the intermediate substrate 1320, and the connecting substrate 1330 may each be composed of a flexible substrate FP and rigid substrates RP1 and RP2. The flexible substrate FP may be located between a plurality of rigid substrates RP1 and RP2. This configuration improves the degree of freedom in the shape of the circuit board 1300 and easily ensures reliability. The flexible substrate FP and the rigid substrates RP1 and RP2 may be electrically connected to each other through grooves or holes.

[0209] In an embodiment, the main substrate 1310, the middle substrate 1320, and the connecting substrate 1330 may have a flexible substrate FP integrated structure. The flexible substrate FP may have a structure bent at the lower side of the second housing along the second side of the second housing or the second substrate. In this case, the flexible substrate FP may have a protruding region that protrudes in a direction opposite to the second direction or toward the second substrate. This may maintain the bonding strength and reliability between the main substrate and the middle substrate.

[0210] The flexible substrate FP may extend from the second side of the second housing or the second substrate to the outside. The shape (bending position, etc.) of the circuit board 1300 may be variously changed depending on the position and structure of the external device, etc.

[0211] Figure 19 is a top view showing the second drive unit and the circuit board, Figure 20 is a perspective view showing the second drive unit and the circuit board, Figure 21 is one side view showing the second drive unit and the circuit board, and Figure 22 is another side view showing the second drive unit and the circuit board.

[0212] 19 to 22, in a camera device according to an embodiment, a driver DR may be provided on a circuit board 1300 or a main board. The driver DR may be electrically connected to the first coil and the second coil. In this case, a first board 1271 and a second board 1272 may be located at both ends of the main board. The first board 1271 and the second board 1272 may be spaced apart at the same interval based on the center of the image sensor IS. That is, the center of the image sensor IS may bisect the interval between the first board 1271 and the second board 1272.

[0213] The first substrate 1271 and the main substrate 1310 may be spaced apart in the third direction (Z-axis direction). The second substrate 1272 and the main substrate 1310 may be spaced apart in the third direction (Z-axis direction).

[0214] The connecting means can connect the first board 1271 and the main board 1310 to each other, and can connect the second board 1272 and the main board 1310 to each other.

[0215] In this embodiment, the first connecting means CC1 may be located between the first connecting terminal portion CE1 and the first substrate terminal portion PE1, and the second connecting means CC2 may be located between the second connecting terminal portion CE2 and the second substrate terminal portion PE2.

[0216] Accordingly, the first substrate 1271 and the second substrate 1272 are only connected to each other via the first connecting means CC1 and the second connecting means CC2, and are not connected to each other via any other components. Accordingly, the second lens assembly, which is moved by the fourth coil 1251a connected to the first substrate 1271, and the first lens assembly, which is moved by the fifth coil 1251b connected to the second substrate 1272, can be aligned independently. That is, when the second lens assembly and the image sensor are moved or shifted for alignment, the first lens assembly may not move or shift. Conversely, when the first lens assembly and the image sensor are moved or shifted for alignment, the second lens assembly may not move or shift. This allows for independent alignment, minimizing thrust loss in the second camera actuator. Furthermore, since there is no connection between the first substrate 1271 and the second substrate 1272, the problem of increased thickness of the camera device due to protrusions or joints for connection may be eliminated.

[0217] As described above, the connecting means may include a first connecting means CC1 arranged between the first connecting terminal portion CE1 and the first substrate terminal portion PE1, and a second connecting means CC2 arranged between the second connecting terminal portion CE2 and the second substrate terminal portion PE2.

[0218] The first connecting region CA1 may overlap the first substrate terminal portion PE1. Specifically, the first connecting region CA1 may overlap the first substrate terminal portion PE1 in the third direction (Z-axis direction). That is, the first connecting terminal portion CE1 may overlap the first substrate terminal portion PE1 in the third direction.

[0219] Furthermore, the second connection region CA2 can overlap the second substrate terminal portion PE2. The second connection region CA2 can overlap the second substrate terminal portion PE2 in the third direction (Z-axis direction). That is, the second connection terminal portion CE2 can overlap the second substrate terminal portion PE2 in the third direction.

[0220] With this configuration, the first connecting means CC1 is easily seated on the first substrate terminal portion PE1 and is not spread over the adjacent driver DR or image sensor IS on the inside. Similarly, the second connecting means CC2 is easily seated on the second substrate terminal portion PE2 and is not spread over the adjacent driver DR or image sensor IS on the inside. This can improve the reliability of the camera device. The first connecting terminal portion CE1, the second connecting terminal portion CE2, the first substrate terminal portion PE1, and the second substrate terminal portion PE2 can be grooves.

[0221] Furthermore, since the driving driver DR is disposed on the main board 1310 as described above, the difference between the electrical distance LT1 between the driving driver DR and the fourth coil 1251a and the electrical distance LT2 between the driving driver DR and the fifth coil 1251b can be reduced compared to when the driving driver DR is disposed on the side of the second housing. As a result, since the lengths of the electrical paths are similar to each other, noise differences due to differences in the electrical paths are reduced, and correction of the driving signal can be easily performed.

[0222] Furthermore, since the driver DR is positioned so as to overlap the first lens assembly and the second lens assembly in the third direction, the influence of heat (heat generated by operation) on the lens unit can be reduced compared to when the driver DR is positioned on the side, which can improve the reliability of the camera device.

[0223] In addition, in some embodiments, the first lens assembly may be located between the second lens assembly and the image sensor, i.e., the distance between the first lens assembly and the image sensor may be smaller than the distance between the second lens assembly and the image sensor.

[0224] The first movement distance of the first lens assembly can be smaller than the second movement distance of the second lens assembly, i.e., the distance (first movement distance) that the first lens assembly moves along the third direction or the optical axis due to the electromagnetic force can be smaller than the distance (second movement distance) that the second lens assembly moves along the third direction or the optical axis due to the electromagnetic force.

[0225] As a result, heat generated by the driver DR is less likely to be applied to the second lens assembly, which has a large moving distance, and the lens group (second lens group) connected to the second lens assembly. As a result, errors in magnification adjustment, which are performed over a large stroke compared to autofocusing, can be easily prevented. As a result, errors caused by heat can be minimized.

[0226] FIG. 23 is a perspective view of a mobile terminal to which a camera device according to an embodiment is applied.

[0227] Referring to FIG. 23, the mobile terminal 1500 of the embodiment may include a camera device 1000, a flash module 1530, and an autofocus device 1510 provided on the rear surface.

[0228] The camera device 1000 may include an image capture function and an autofocus function. For example, the camera device 1000 may include an image-based autofocus function.

[0229] The camera device 1000 processes still or video image frames obtained by an image sensor in a photographing mode or a video call mode.

[0230] The processed image frames can be displayed on a predetermined display unit or stored in a memory. A camera (not shown) can also be disposed on the front of the body of the mobile terminal.

[0231] For example, the camera device 1000 may include a first camera device 1000A and a second camera device 1000B, and the first camera device 1000A may implement OIS together with AF or zoom functions.

[0232] The flash module 1530 may include a light emitting element for emitting light therein, and may be activated by the camera of the mobile terminal or by user control.

[0233] The autofocus device 1510 may include one of a package of surface emitting laser elements as the light emitter.

[0234] The autofocus device 1510 may include a laser-based autofocus function, and may be primarily used in conditions where the image-based autofocus function of the camera device 1000 is degraded, such as close range of 10 m or less, or in dark environments.

[0235] The autofocus device 1510 may include a light emitting portion including a vertical cavity surface emitting laser (VCSEL) semiconductor device, and a light receiving portion such as a photodiode that converts optical energy into electrical energy.

[0236] FIG. 24 is a perspective view of a vehicle to which the camera device according to the embodiment is applied.

[0237] For example, FIG. 24 is an external view of a vehicle equipped with a vehicle driving assistance device to which the camera device 1000 according to the embodiment is applied.

[0238] 24, a vehicle 700 according to an embodiment may include wheels 13FL and 13FR that are rotated by a power source and a predetermined sensor. The sensor may be, but is not limited to, a camera sensor 2000.

[0239] The camera sensor 2000 may be a camera sensor to which the camera device 1000 according to the embodiment is applied. The vehicle 700 according to the embodiment may acquire image information through the camera sensor 2000 capturing a front image or a surrounding image, and may determine a lane unidentified situation using the image information and generate a virtual lane when a lane is unidentified.

[0240] For example, the camera sensor 2000 may capture an image in front of the vehicle 700 to acquire a front image, and a processor (not shown) may analyze objects included in the front image to acquire image information.

[0241] For example, if an object such as a lane marking, an adjacent vehicle, a driving obstacle, or an indirect road marking such as a median strip, a curb, or a row of trees is captured in the image captured by the camera sensor 2000, the processor can detect such an object and include it in the image information. In this case, the processor can obtain distance information from the detected object through the camera sensor 2000 to further complement the image information.

[0242] The image information may be information about an object captured in the image. Such a camera sensor 2000 may include an image sensor and an image processing module.

[0243] The camera sensor 2000 can process still or video images obtained by an image sensor (eg, CMOS or CCD).

[0244] The image processing module processes still or moving images acquired through the image sensor, extracts necessary information, and transmits the extracted information to a processor.

[0245] In this case, the camera sensor 2000 may include, but is not limited to, a stereo camera to improve the accuracy of measuring the object and to further secure information such as the distance between the vehicle 700 and the object.

[0246] Although the present invention has been described mainly with reference to the embodiments, these are merely illustrative and do not limit the scope of the present invention. Those skilled in the art will recognize that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the present invention. For example, each component specifically illustrated in the embodiments can be modified and implemented. Differences related to such modifications and applications should be construed as being included within the scope of the present invention as defined by the appended claims.

Claims

1. Housing and a lens assembly including at least one lens; a drive unit that moves the lens assembly; a main board on which an image sensor is mounted; a first substrate and a second substrate electrically connected to the driving unit and spaced apart from each other on opposite sides of the housing; the main board includes a first connecting means connected to the first board and a second connecting means connected to the second board; 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; The drive magnet includes a first magnet corresponding to the first coil and a second magnet corresponding to the second coil. Camera equipment.

2. In claim 1, Further including a driver disposed on the main board. Camera equipment.

3. In claim 2, The driver is electrically connected to the first coil and the second coil.

4. In claim 3, The camera device further includes a base portion that encases the image sensor and the driver on the main board.

5. In claim 1, the first substrate includes a first main region and a first connecting region contacting an end of the first main region; The second substrate includes a second main region and a second connecting region that contacts an end of the second main region.

6. In claim 5, the first connecting region is inclined inward relative to the first main region, the second connecting region is inclined inward relative to the second main region, A camera device, wherein a first separation distance between the first main region and the second main region is greater than a second separation distance between the first connecting region and the second connecting region.

7. In claim 5, the first connecting region includes a first connecting terminal portion disposed on an outer surface thereof, The second connecting region includes a second connecting terminal portion disposed on an outer surface of the camera device.

8. In claim 7, the main board includes a first board terminal portion and a second board terminal portion disposed on an upper surface thereof, the first connecting region overlaps with the first substrate terminal portion; The second connecting region overlaps with the second substrate terminal portion of the camera device.

9. In claim 8, the first connecting means is disposed between the first connecting terminal portion and the first board terminal portion, The second connecting means is disposed between the second connecting terminal portion and the second substrate terminal portion of the camera device.

10. In claim 1, The lens assembly includes: a second lens assembly; a first lens assembly disposed between the second lens assembly and an image sensor; A camera apparatus, wherein a first movement distance of the first lens assembly is greater than a second movement distance of the second lens assembly.

11. In claim 1, A camera device in which the first connecting means and the second connecting means include conductive members.

12. Housing and a lens assembly including at least one lens; a drive unit that moves the lens assembly; a main board on which an image sensor is mounted; a first substrate and a second substrate electrically connected to the main substrate; a driver disposed on the main board, the first substrate is disposed on a first side of the housing, and the second substrate is disposed on a second side opposite the first side; The driving driver is electrically connected to the driving unit, the lens assembly includes a first 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. Camera equipment.

13. In claim 12, the lens assembly includes a second lens assembly; 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.

14. In claim 13, A camera apparatus, wherein a first movement distance of the first lens assembly is greater than a second movement distance of the second lens assembly.

15. In claim 13, The driver is located in a region between the first substrate and the second substrate.

Images