Camera actuator and camera module including the same
The camera actuator design addresses spatial and magnetic interference issues in ultra-slim, high-resolution camera modules by using magnetic repulsive forces and integrated Hall sensor testing, ensuring reliable operation and compact size.
Patent Information
- Application Number
- JP2025134887
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2020-06-08
- Filing Date
- 2025-08-13
- Publication Date
- 2025-11-12
Smart Images

Figure 2025169342000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a camera actuator and a camera module including the same. [Background technology]
[0002] A camera is a device that takes pictures or videos of an object and can be used in handheld devices, drones, cars, etc. The camera module is attached to the user's Image Stabilization to correct or prevent image shake caused by movement ization, IS) function, which automatically adjusts the distance between the image sensor and the lens to Auto Focusing (AF) function that aligns the focal length of the lens The zoom lens can be used to increase or decrease the magnification of distant objects. It can have a zooming function that allows you to take pictures by zooming.
[0003] On the other hand, the higher the pixel count of an image sensor, the higher the resolution. The size is smaller, but the smaller the pixel, the less light it receives in the same amount of time. Therefore, the higher the pixel count of the camera, the slower the shutter speed in dark environments. As the image becomes blurred, the image blur caused by camera shake becomes more pronounced. A typical example of IS technology is the motion compensation technology, which compensates for movement by changing the path of light. Optical Image Stabilizer (OIS), a technology that , OIS) technology.
[0004] According to general OIS technology, the camera uses a gyrosensor etc. The camera's movement is detected, and the lens is tilted or moved based on the detected movement, or the lens and the image are moved. The camera module, which includes the lens and the image sensor, can be tilted or moved. When the camera module including the lens and image sensor tilts or moves due to OIS, In this case, additional space for tilting or moving is secured around the lens or camera module. It is necessary to
[0005] On the other hand, the actuator for the OIS can be placed at the periphery of the lens. The actuator for IS has two axes perpendicular to the optical axis Z, i.e., X-axis tilt. The actuator may include an actuator responsible for tilting the Y-axis and an actuator responsible for tilting the Y-axis.
[0006] However, depending on the needs of ultra-slim and ultra-small camera modules, There are significant spatial restrictions on the placement of the image sensor, and the lens or the lens and image sensor The camera module itself, including the OIS, is guaranteed to have sufficient space to tilt or move. Also, the higher the pixel count of the camera, the more light is received, so the lens Although it is preferable to increase the size of the lens, the space occupied by the actuator for the OIS is Therefore, there may be a limit to how large the lens can be made.
[0007] In addition, the camera module includes zooming, AF, and OIS functions. In this case, the OIS magnet and the AF or Zoom magnet are placed close to each other. There is also the problem of magnetic interference occurring due to the interference.
[0008] Furthermore, in the case of the lens movement method, a Hall sensor is used to detect the position and movement of the lens. A Hall sensor is used.
[0009] This Hall sensor is connected to the driver IC to obtain lens position information. The acquired position information is transmitted to the driver IC.
[0010] In this case, in the past, the driver IC and the Hall sensor were mounted on different boards. However, recently, in order to reduce noise and minimize bulk, driver ICs have been used. In this case, the Hall sensor and the sensor tend to be mounted on the same board. A number of pads are formed on the hole. The pads are connected to the driver IC. The sensor is connected to the driver IC. When these are arranged on the same board, the board has a pad directly connected to the Hall sensor. There is no such code.
[0011] Here, the Hall sensor is SMT (Surface Mount Technology) The Hall sensor is mounted on the board through the SMT process. However, the above-mentioned boards have Hall sensors, and short-circuit failures occur in about 3% to 4% of cases. There is no pad connected to the Hall sensor, so the mounting state of the Hall sensor cannot be tested. In other words, the mounting state of the Hall sensor is This can be confirmed by measuring the resistance. The test must be carried out through the pads connected to the driver IC. The pad is not directly connected to the Hall sensor but is connected to the Hall sensor via a driver IC. The Hall sensor is connected to the sensor, so direct testing of the Hall sensor is not possible. There is a problem.
[0012] Meanwhile, the Hall sensor is arranged on a substrate together with a coil. The lens sensor is disposed on the substrate in an area inside the coil, and the movement of the lens is This is done by the electromagnetic force generated between the coil and the magnet. At this time, the electromagnetic force is , is affected by the distance between the coil and the magnet. The magnet's position is detected by the Hall sensor according to the distance between the Hall sensor and the magnet. The magnetic flux changes, affecting the position sensing performance of the Hall sensor. .
[0013] In this case, in the past, the height of the coil had to be guaranteed in order to secure the thrust. In this case, the higher the coil height, the longer the separation distance between the magnet and the Hall sensor. This increases the number of sensors, which reduces the position detection performance. Summary of the Invention [Problem to be solved by the invention]
[0014] The technical problem that the present invention aims to solve is to utilize the repulsive force between the first magnetic body and the second magnetic body. A camera actuator that maintains the connection between the mover and the housing and a camera model including the same The purpose is to provide a
[0015] The embodiment also provides a camera actuator that is applicable to ultra-slim, ultra-compact and high-resolution cameras. It provides eta.
[0016] In the embodiment, the driver IC and the Hall sensor are arranged on the same substrate. In this case, a camera actuator and a camera actuator including the same can be used to test the mounting state of the Hall sensor. A camera module is provided.
[0017] In addition, in the embodiment, the sensitivity of the Hall sensor can be increased while increasing the thrust. A camera actuator and a camera module including the same are provided.
[0018] The technical problems to be solved in the embodiments are not limited to the technical problems mentioned above. Further technical problems not mentioned above will become clear from the description below in the field of technology to which the present invention belongs. This will be clearly understood by a person of ordinary skill in the art. [Means for solving the problem]
[0019] A camera actuator according to an embodiment of the present invention includes a housing and a lens coupled to the housing. a first member having an optical member, a mover including an optical member, and a first magnetic body disposed on the first member; A second magnetic body disposed on the mover, and a tilt guide portion for guiding the tilt of the mover. and the mover includes a holder coupled to the optical member and a and a second member that is joined to the first magnetic body and the second magnetic body. A force causes the first member and the holder to adhere to each other.
[0020] The first member has a first through hole and a second through hole disposed apart from the first through hole. The second member includes a through hole, and the second member is located on a base portion of the member, at an edge of the base portion of the member, and the a first extension portion extending toward the holder; and a mover portion spaced apart from the first extension portion. The second extension may extend toward the
[0021] The first extension portion passes through the first through hole, and the second extension portion passes through the second through hole. can penetrate.
[0022] The first member has an upper portion disposed above the first through hole and the second through hole. a lower member disposed below the first through hole and the second through hole; a connecting member connecting the upper member and the lower member, and a connecting member extending from one side of the upper member toward the holder; a first protrusion extending from the other side of the upper member toward the holder; and a second protrusion extending from the other side of the upper member toward the holder. the first extension portion and the second extension portion are disposed between the upper member and the lower member. It can be arranged.
[0023] The camera actuator according to the embodiment includes a housing and a first actuator coupled to the housing. a mover including a member, a holder, a first magnetic body disposed on the first member, and a A second magnetic body is disposed on the bar, and a tilting guide is disposed between the holder and the first member. a guide portion, the mover including a second member coupled to the holder, and the first A part of the member is disposed between the second member and the holder, and the first surface of the first magnetic body and the second surface of the second magnetic body facing the first surface may have the same polarity. .
[0024] The center of the second magnetic body and the center of the second member are arranged to be at different positions from each other. It can be done.
[0025] The center of the second magnetic body may be located above or below the center of the second member.
[0026] The area of the second magnetic body is larger than the area of the first magnetic body, and the first magnetic body is Both ends of the second magnetic body may be located within an imaginary line extending in the optical axis direction.
[0027] The camera actuator according to the embodiment includes a housing and a first part coupled to the housing. a first magnetic body disposed on the first member; a second magnetic body corresponding to the first magnetic body; A second member on which a second magnetic body is disposed, a holder coupled to the second member, and a front end of the holder. a tilt guide portion disposed between the first member and the tilt guide portion, and a portion of the first member is It is disposed between the two members and the holder.
[0028] The first magnetic body and the second magnetic body may face each other with the same polarity.
[0029] The camera actuator according to the embodiment includes a base and a guide disposed inside the base. a lens assembly that moves along the guide portion; and a lens assembly that is disposed outside the base. a substrate, the lens assembly including a lens barrel in which a lens is disposed, and a magnet The substrate includes an insulating portion and a mover on which the magnet is disposed. a coil portion disposed so as to face the position sensor, and a position sensor disposed in an inner region of the coil portion. a sensor and a test pad disposed on the insulating portion, the test pad being It is directly connected to the position sensor via a wire.
[0030] The test pad is disposed opposite the magnet with the coil portion interposed therebetween. To be placed.
[0031] The substrate also includes a driver IC, and the position sensor is connected to the test pad. and a second terminal connected to the driver IC.
[0032] The insulating portion has the test pad and the connecting portion on one side facing the magnet. an insulating layer in which connection wiring is arranged, and a first opening on one surface of the insulating layer that exposes the test pad; a first protective layer including a region; and a second opening on one surface of the first protective layer, the second opening exposing the first opening region. and a second protective layer including the region.
[0033] The coil portion has the first opening region and the second opening region on one surface of the second protective layer. are placed over the area.
[0034] The outside of the base is formed by a first opening region of the first protective layer and a second opening region of the second protective layer. It is placed over the mouth area.
[0035] The second protective layer includes a seating groove in which the area where the coil portion is disposed is open. The coil portion is disposed in the seating groove of the second protective layer.
[0036] The position detecting sensors may be a plurality of sensors spaced apart from each other in the inner region of the coil portion. Includes several Hall sensors.
[0037] The guide portion is a first guide disposed on a first inner side adjacent to a first side wall of the base. a second guide portion disposed on a second inner side adjacent to a second side wall of the base; The lens assembly includes a first lens barrel in which a first lens is disposed, and a first magnet. a first lens assembly including a first mover on which the lens is disposed; and a second mover on which the lens is disposed. a second lens barrel and a second mover on which a second magnet is disposed, and the substrate is a first substrate region disposed outside the first sidewall; and a second substrate region disposed outside the second sidewall. and a plate region, and the coil portion, the test pad, and the position detection sensor are The first and second substrate regions are disposed on the substrate region and the second substrate region, respectively.
[0038] On the other hand, the camera actuator according to the embodiment includes a housing and a a mover disposed in the image stabilization control unit; a tilt guide portion disposed between the housing and the mover, and the mover a prism mover, and a prism disposed on the prism mover; The image stabilization unit includes a substrate and a lens element on one surface of the substrate facing the prism mover. a coil portion disposed inside the coil portion; a position detecting sensor disposed inside the coil portion; a magnet disposed on the prism mover facing the test wheel; The pad is disposed so as to face the magnet across the coil portion, and a connecting wire is directly connected to the position detecting sensor via
[0039] The substrate has the test pad and the connecting portion on one side facing the magnet. an insulating layer on which wiring is disposed, and a first opening on one surface of the insulating layer that exposes the test pad; a first protective layer including a region; and a second opening on one surface of the first protective layer, the second opening exposing the first opening region. a second protective layer including a first opening on one surface of the second protective layer; It is disposed over the mouth area and the second opening area.
[0040] The second protective layer includes a seating groove in which the area where the coil portion is disposed is open. The coil portion is disposed in the seating groove of the second protective layer.
[0041] On the other hand, the camera module according to the embodiment includes a first camera actuator and a second camera. an actuator, the first camera actuator being an autofocus (Au to focus or zoom function, and the second camera actuation The computer performs the OIS (Optical Image Stabilizer) function. do.
[0042] Furthermore, light incident on the camera module from the outside is reflected by the second camera actuator. The path of the light is changed by the actuator, and the light is made incident on the first camera actuator. [Effects of the Invention]
[0043] According to the embodiment of the present invention, the tilt guide portion is held by the first and second magnetic bodies that generate repulsive force. This allows for the realization of a camera actuator with improved bonding strength by being tightly attached to the camera body.
[0044] In addition, in the embodiment, the camera is applicable to ultra-slim, ultra-compact and high-resolution cameras. In particular, it is possible to increase the overall size of the camera module. Although this does not reduce the size, it allows for efficient placement of the OIS actuator.
[0045] In the embodiment, the Hall sensor, the driver IC, and the coil unit are arranged on the first substrate. At this time, the first substrate in the embodiment is a test board directly connected to the Hall sensor. In the embodiment, the pad includes a driver IC, a Hall sensor, and a coil. With the parts arranged on the same board, a separate test is carried out to test the mounting state of the Hall sensor. The test pad is formed on the first substrate. This allows efficient verification of mounting defects that may occur during mounting of the sensor, thereby improving reliability. can be improved.
[0046] In addition, the test pads in the embodiment may be formed on the first substrate so as to be exposed to the outside. In this case, the test pads cause reliability problems when in contact with other components. In one embodiment, the exposed surface of the test pad may be covered by the coil portion. In another embodiment, the exposed surface of the test pad is covered by the sidewall of the base. According to the invention, in an embodiment, a separate protective layer is provided to cover the exposed surface of the test pad. This eliminates the need to form a protective layer, thereby simplifying the manufacturing process and reducing the manufacturing cost. In addition, in the embodiment, the design caused by the protective layer can be reduced. This allows us to solve design problems and ensure freedom of design. do.
[0047] In addition, the first substrate in the embodiment includes a seating groove formed in the area where the coil portion is arranged. At this time, the seating groove is an open area of the coverlay constituting the first substrate. Therefore, in the embodiment, the depth of the seating groove is set between the Hall sensor and the magnet. This reduces the distance between the drive and the Hall sensor, thereby increasing the thrust of the drive unit and improving the sensitivity of the Hall sensor. It can be improved.
[0048] According to the embodiment of the present invention, the tilt in the X-axis direction and the tilt in the Y-axis direction do not cause magnetic field interference with each other. It has a stable structure and can realize tilting in the X-axis direction and tilting in the Y-axis direction, making it suitable for AF or zoom. This allows for precise OIS function without causing magnetic field interference with the actuator. This can be done.
[0049] According to the embodiment of the present invention, it is possible to eliminate the size limitation of the lens and ensure a sufficient amount of light. This allows for the realization of a low-power OIS. [Brief explanation of the drawings]
[0050] [Figure 1] FIG. 1 is a perspective view of a camera module according to an embodiment. [Figure 2] FIG. 2 is an exploded perspective view of a camera module according to an embodiment. [Figure 3] FIG. 2 is a cross-sectional view taken along line AA′ in FIG. [Figure 4] FIG. 2 is a perspective view of a first camera actuator according to an embodiment. [Figure 5] FIG. 2 is an exploded perspective view of a first camera actuator according to an embodiment. [Figure 6a] FIG. 2 is a perspective view of a first housing of a first camera actuator according to an embodiment. [Figure 6b] FIG. 6b is a perspective view in a different direction from FIG. 6a. [Figure 6c] FIG. 2 is a front view of a first housing of a first camera actuator according to an embodiment. [Figure 7] FIG. 2 is a perspective view of an optical member of a first camera actuator according to an embodiment. [Figure 8a] FIG. 10 is a perspective view of a holder for a first camera actuator according to an embodiment. [Figure 8b] FIG. 10 is a bottom view of the holder of the first camera actuator according to the embodiment. [Figure 8c] FIG. 10 is a front view of a holder for a first camera actuator according to an embodiment. [Figure 8d] FIG. 10 is a rear view of the second member of the first camera actuator according to the embodiment. [Figure 8e] FIG. 10 is a bottom view of a second member of the first camera actuator according to an embodiment. [Figure 9a] FIG. 10 is a perspective view of a tilt guide portion of the first camera actuator according to the embodiment. [Figure 9b] It is a perspective view in a direction different from FIG. 9a. [Figure 9c] It is a cross-sectional view seen from FF’ in FIG. 9a. [Figure 10] It is a view showing the first driving part of the first camera actuator according to an embodiment. [Figure 11a] It is a perspective view of the first camera actuator according to an embodiment. [Figure 11b] It is a cross-sectional view seen from PP’ in FIG. 11a. [Figure 11c] It is a cross-sectional view seen from QQ’ in FIG. 11a. [Figure 12a] It is a perspective view of the first camera actuator according to an embodiment. [Figure 12b] It is a cross-sectional view seen from SS’ in FIG. 12a. [Figure 12c] It is an exemplary view of the movement of the first camera actuator shown in FIG. 12b. [Figure 13a] It is a cross-sectional view seen from RR’ in FIG. 12a. [Figure 13b] It is an exemplary view of the movement of the first camera actuator shown in FIG. 13a. [Figure 14] It is a view for explaining the assembly procedure of the first camera actuator according to an embodiment. [Figure 15] It is a perspective view of the second camera actuator according to an embodiment. [Figure 16] It is an exploded perspective view of the second camera actuator according to an embodiment. [Figure 17] It is a cross-sectional view seen from DD’ in FIG. 15. [Figure 18] It is a cross-sectional view seen from EE’ in FIG. 15. [Figure 19] It is a perspective view of a camera module according to another embodiment. [Figure 20a] It is a perspective view in which some configurations are omitted in the camera module of FIG. 19. [Figure 20b] It is an exploded perspective view of the camera module of FIG. 20a. [Figure 21] It is a perspective view of the first camera actuator according to an embodiment. [Figure 22] FIG. 22 is a perspective view of the camera actuator according to the embodiment shown in FIG. 21, with some components omitted. [Figure 23] FIG. 22 is an exploded perspective view of the camera actuator according to the embodiment shown in FIG. 21, with some components omitted. [Figure 24] 3 is an enlarged perspective view of a first guide portion and a second guide portion in the camera actuator according to the embodiment. FIG. [Figure 25a] FIG. 24 is a perspective view of a first lens assembly in a camera actuator according to the embodiment shown in FIG. 23. [Figure 25b] FIG. 25b is a perspective view of the first lens assembly shown in FIG. 25a with some components removed. [Figure 26] 10A and 10B are diagrams illustrating an example of driving a camera actuator according to an embodiment. [Figure 27a] 3 is a perspective view of a first substrate from which a first coil portion has been removed according to the first embodiment, as viewed from a first direction. FIG. [Figure 27b] 10 is a perspective view of the first substrate from which the first coil portion has been removed, viewed from a second direction, according to the first embodiment. FIG. [Figure 27c] FIG. 2 is a perspective view showing a first substrate on which a first coil portion is arranged according to the first embodiment. [Figure 28a] FIG. 2 is a cross-sectional view of a first substrate according to the first embodiment. [Figure 28b] FIG. 2 is a plan view of a first substrate from which a first coil portion has been removed according to a first embodiment. [Figure 28c] FIG. 2 is a plan view of a first substrate on which a first coil portion is arranged according to a first embodiment. [Figure 29a] 10 is a perspective view of a first substrate from which a first coil portion has been removed according to a second embodiment, as viewed from a first direction. FIG. [Figure 29b] 10 is a perspective view of the first substrate from which the first coil portion has been removed according to the second embodiment, as viewed from a second direction. FIG. [Figure 29c] FIG. 10 is a view showing a first substrate and a base coupled together according to a second embodiment. [Figure 29d]10A and 10B are diagrams showing the structure of a first substrate with a base coupled thereto according to a second embodiment; [Figure 30a] FIG. 11 is a perspective view showing a first substrate on which a coil portion is arranged according to a third embodiment. [Figure 30b] FIG. 11 is a perspective view showing a first substrate from which a coil portion has been removed according to a third embodiment. [Figure 30c] FIG. 10 is a cross-sectional view of a first substrate according to a third embodiment. [Figure 31] 10 is a diagram for comparing the separation distance between the Hall sensor and the magnet in an example and a comparative example. FIG. [Figure 32] 10 shows magnetic flux data according to the distance between the magnet and the Hall sensor in the example and the comparative example. [Figure 33] FIG. 2 is a perspective view of a first driving unit in the camera actuator according to the embodiment. [Figure 34a] FIG. 10 is a perspective view of a second camera actuator of the camera module according to the embodiment. [Figure 34b] FIG. 10 is an exploded perspective view of a second camera actuator according to an embodiment. [Figure 35a] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 35b] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 36a] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 36b] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 37a] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 37b] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 37c] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 38a] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 38b] 4A and 4B are perspective views of the components of the second camera actuator. [Figure 39] 10 is a diagram showing the coupling relationship between the housing, the mover, and the moving protrusion in the second camera actuator. FIG. [Figure 40] 10 is a diagram showing the coupling relationship between the housing, the mover, and the moving protrusion in the second camera actuator. FIG. [Figure 41a] 10A and 10B are diagrams illustrating an example of the operation of a second camera actuator according to an embodiment. [Figure 41b] 10A and 10B are diagrams illustrating an example of the operation of a second camera actuator according to an embodiment. [Figure 42] 10 is an exemplary view of an integrated body in a camera module according to another embodiment; [Figure 43] 1 illustrates a mobile terminal to which a camera module according to an embodiment is applied. [Figure 44] 1 is a perspective view of a vehicle to which a camera module according to an embodiment is applied; DETAILED DESCRIPTION OF THE INVENTION
[0051] While the present invention is susceptible to various modifications and variations, specific implementations may be practiced. Examples will be illustrated and described in the drawings, but this does not mean that the invention is limited to specific embodiments. It is not intended to be limiting, and any modifications falling within the spirit and scope of the present invention are within the scope of the present invention. It should be understood to include equivalents or alternatives.
[0052] Ordinal terms such as "second," "first," etc. are used to describe various components. Although the term may be used, the components are not limited by these terms. It is used only for the purpose of distinguishing the element from other elements. For example, To the extent that the second component is not a first component, the second component may be referred to as the first component, and similarly, the first component The term "and / or" can be used to refer to a plurality of related items. It includes any combination of the listed items or any of a number of related listed items.
[0053] A component is referred to as being "coupled" or "connected" to another component. When a component is connected to a network, it may be directly connected to or connected to other components. However, it should be understood that there may be other components in between. On the other hand, a component may be "directly connected" or "directly connected" to another component. When it is stated that a component is included, it should be understood that there are no other components in between. is.
[0054] The terms used in this application are merely used to describe specific embodiments. The singular expression is intended to be used in a variety of ways and is not intended to limit the present invention. In this application, the term "including" or "having" includes plural expressions unless it means "all." The terms "to be" and "to be used" and the like refer to features, numbers, steps, operations, components, parts, or It is intended to specify that a combination of these exists, and one or Any further features, numbers, steps, operations, components, parts or combinations thereof It should be understood that this does not preclude the possibility of the existence or addition of other elements.
[0055] Unless otherwise specified, all terms used herein, including technical and scientific terms, are It is generally understood by a person having ordinary skill in the art to which the invention pertains. Terms in common use and as defined in dictionaries have the same meaning. The meaning of the term "term" should be interpreted as being consistent with the meaning it has in the context of the relevant art, and in this application Unless expressly stated otherwise, it is not to be construed in an idealized or overly formal sense.
[0056] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. The same reference numerals are used to designate the same or corresponding components, and redundant descriptions thereof will be omitted. I'll omit it.
[0057] FIG. 1 is a perspective view of a camera module according to an embodiment, and FIG. 2 is a perspective view of a camera module according to an embodiment. 3 is an exploded perspective view of the module, and FIG. 3 is a cross-sectional view taken along line AA' in FIG.
[0058] 1 and 2, the camera module 1000 according to the embodiment includes a cover CV, First camera actuator 1100, second camera actuator 1200, and circuit board 1300. Here, the first camera actuator 1100 is the first actuator. The second camera actuator 1200 can be used interchangeably with the second actuator. The first camera actuator and the second camera actuator described in the other embodiment Furthermore, the first camera actuator described in Figs. The first camera actuator and the second camera actuator are the same as those described in FIGS. The first camera actuator 1100 and the second camera actuator 1200 can be substituted for each other.
[0059] The cover CV covers the first camera actuator 1100 and the second camera actuator 1200. The cover CV can cover the first camera actuator 1100 and the second camera actuator 1100. The bonding strength between the actuators 1200 can be improved.
[0060] Furthermore, the cover CV may be made of a material that blocks electromagnetic waves. - The first camera actuator 1100 and the second camera actuator 1200 in the CV are accommodated. It can be easily protected.
[0061] The first camera actuator 1100 is an OIS (Optical Image Sensor). For example, the first camera actuator The actuator 1100 can move the optical element in a direction perpendicular to the optical axis.
[0062] The first camera actuator 1100 includes a lens arranged in a predetermined lens barrel (not shown). The lens may be a fixed focal length lens. les. es) may also be referred to as a "single focal length lens" or "single lens."
[0063] The first camera actuator 1100 can change the path of the light. The first camera actuator 1100 is an internal optical element (e.g., a prism or mirror) By using this configuration, the optical path of the mobile terminal can be changed vertically. Even if the thickness is reduced, the lens configuration, which is larger than the thickness of the mobile terminal, is moved by changing the optical path. It is placed inside a mobile terminal and performs magnification, autofocusing (AF) and OIS functions. It is possible.
[0064] However, the present invention is not limited to this, and the first camera actuator 1100 may be can be changed to vertical or a predetermined angle multiple times.
[0065] The second camera actuator 1200 is disposed after the first camera actuator 1100. The second camera actuator 1200 can be positioned in the same position as the first camera actuator 1100. The connections between them can be made in various ways.
[0066] The second camera actuator 1200 is a zoom actuator or It can be an AF (Auto Focus) actuator. For example, a second camera actuator. The Eta 1200 supports one or more lenses and operates in response to a control signal from a predetermined control unit. The lens may be moved to perform autofocus or zoom functions.
[0067] The lens or lenses move independently or individually along the optical axis.
[0068] The circuit board 1300 may be disposed after the second camera actuator 1200. The substrate 1300 is connected to the second camera actuator 1200 and the first camera actuator 11. 00. Also, there may be multiple circuit boards 1300.
[0069] The camera module according to the embodiment may consist of a single camera module or multiple camera modules. For example, the multiple camera modules may include a first camera module and a second camera module. It may include a rule.
[0070] The first camera module may include a single or multiple actuators. The first camera module includes a first camera actuator 1100 and a second camera actuator The data 1200 may be included.
[0071] The second camera module is disposed in a predetermined housing (not shown), and has a lens portion The actuator may include an actuator (not shown) that can drive a voice coil motor. It can be a motor, a micro-actuator, a silicon actuator, etc., and can be an electrostatic type, a thermal It can be applied in various ways such as a morph type, a bimorph type, an electrostatic type, etc. In this specification, the camera actuator is not intended to be an actuator or the like. In addition, a camera module consisting of multiple camera modules can be It can be implemented in various electronic devices such as mobile terminals.
[0072] Referring to FIG. 3, the camera module according to the embodiment includes a first camera adapter that performs an OIS function. The actuator 1100 and the second camera that performs the zooming function and the AF function. and a lens actuator 1200.
[0073] The light enters the camera through an aperture area located on the top surface of the first camera actuator 1100. The light can be incident on the optical axis of the camera module or the first camera actuator. The light is incident into the first camera actuator 1100 along a direction (for example, the X-axis direction). The optical path can be changed to a vertical direction (for example, the Z-axis direction) through the optical member. passes through the second camera actuator 1200 and It can be incident on the image sensor IS located at one end (PATH).
[0074] In this specification, the bottom surface means one side in the first direction. The first direction is the bottom surface in the drawing. The X-axis direction may be used interchangeably with the second axis direction. The second direction is the Y-axis direction in the drawing. The second direction is a direction perpendicular to the first direction. The direction is the Z-axis direction in the drawing, and may be mixed with the third axis direction, etc. The third direction is the The first and second directions are perpendicular to each other. Here, the third direction (Z-axis direction) is the direction of the light. The first direction (X-axis direction) and the second direction (Y-axis direction) correspond to the direction of the optical axis. and can be tilted by the second camera actuator. The vertical direction may refer to at least one of the first and second directions. For example, the horizontal direction may refer to the x-axis and y-axis of the drawing. The vertical direction is the z-axis direction in the drawing, and the x-axis and y-axis directions are In the following, the first camera actuator 1100 and In the description of the two-camera actuator 1200, the optical axis direction is the third direction (Z axis direction). The following explanation will be based on this.
[0075] In this specification, the inside is the direction from the cover CV toward the first camera actuator. The first camera actuator and the second camera actuator may be in the opposite direction, and the outer side may be in the opposite direction. The first and second camera actuators are located inside the cover CV, and the cover CV is The camera may be located outside the actuator or the second camera actuator.
[0076] With this configuration, the camera module according to the embodiment changes the path of light. This improves the spatial limitations of the first and second camera actuators. That is, the camera module according to the embodiment can change the camera in response to the change in the path of light. The thickness of the laser module can be minimized while the optical path can be extended. The laser actuator controls the focus and other aspects of the extended optical path, providing a wide range of magnification. It should be understood that this is also possible.
[0077] In addition, the camera module according to the embodiment includes a first camera actuator. OIS can be realized through control, so decentering It minimizes the occurrence of tilt and provides the best optical characteristics. .
[0078] Furthermore, the second camera actuator 1200 may include an optical system and a lens drive unit. For example, the second camera actuator 1200 may be configured to At least one of a lens assembly, a third lens assembly, and a guide pin may be disposed. do.
[0079] The second camera actuator 1200 is equipped with a coil and a magnet, and is highly It is possible to perform a zooming function of a certain rate.
[0080] For example, the first and second lens assemblies may include coils, magnets, and It can be a moving lens that moves through a guide pin, and the third lens The lens assembly can be, but is not limited to, a fixed lens. For example, a third The lens assembly performs the function of a condenser, focusing light at a specific location. The first lens assembly can be imaged by a third lens assembly, which is a condenser. It can perform the function of a variator, refocusing a captured image elsewhere. In the first lens assembly, the distance to the subject or the image distance changes a lot, and the magnification The first lens assembly, which may be a variable magnification, may be in a state where the change in magnification is large. It plays an important role in changing the distance or magnification. The imaged point may vary slightly depending on the position. This allows the second lens assembly to For example, the second lens can perform a position compensation function for the image formed by the magnification variable lens. The lens assembly converts the image point formed by the first lens assembly, which is a magnification variable, into an actual image. The function of the compensator is to accurately focus the image at the position of the image sensor. For example, the first lens assembly and the second lens assembly may be It can be driven by electromagnetic force due to the interaction between the coil and the magnet. The present invention can be applied to the lens assemblies. The first lens assembly can move along the optical axis, i.e., the third direction. The first to third lens assemblies can move in a third direction independently or dependently of each other. .
[0081] On the other hand, according to the embodiment of the present invention, the OIS actuator and the AF or Zoom actuator are If an Etator is installed, there may be magnetic interference with the AF or Zoom magnet when driving the OIS. The first drive magnet of the first camera actuator 1100 can be prevented from Since it is located separately from the actuator 1200, the first camera actuator 110 0 and the second camera actuator 1200 can be prevented from magnetic field interference. OIS stands for Optical Image Stabilization, Optical Image Stabilization, Shake Compensation It may be used interchangeably with terms such as:
[0082] FIG. 4 is a perspective view of a first camera actuator according to an embodiment, and FIG. 5 is a perspective view of a second camera actuator according to an embodiment. FIG. 1 is an exploded perspective view of the camera actuator.
[0083] 4 and 5, the first camera actuator 1100 according to the embodiment includes a first Housing 1120, mover 1130, rotating part 1140, first driving part 1150, first part The first member 1126 and the second member 1131a.
[0084] The mover 1130 is a holder 1131 and an optical element mounted on the holder 1131. The rotating portion 1140 may include a tilting guide portion 1141, a tilting guide portion A second magnetic body 1142 and a first magnetic body 1143 having opposite polarities are arranged to apply pressure to the first magnetic body 1141. The first driving unit 1150 may include a driving magnet 1151, a driving coil 1152, a driving coil 1153, a driving coil 1154, a driving coil 1155, a driving coil 1156, a driving coil 1157, a driving coil 1158, a driving coil 1159, a driving coil 1160, a driving coil 1161, a driving coil 1162, a driving coil 1163 The coil 1152, the hall sensor part 1153, the first substrate part 1154, and the yoke part 1155 are include.
[0085] First, the first camera actuator 1100 may include a shielding can (not shown). The cold can (not shown) is located at the outermost side of the first camera actuator 1100. The first drive unit 1150 may be positioned to surround the rotating unit 1140 and the first drive unit 1150.
[0086] Such a shielding can (not shown) can block or reduce externally generated electromagnetic waves. That is, the shielding can (not shown) can be mounted on the rotating part 1140 or the first driving part 115. 0 can reduce the occurrence of malfunctions.
[0087] The first housing 1120 may be located inside a shielding can (not shown). If there is no first housing 1120, the first housing 1120 may be located at the outermost position of the first camera actuator. do.
[0088] In addition, the first housing 1120 can be located inside a first substrate unit 1154, which will be described later. The first housing 1120 is fitted or engaged with a shielding can (not shown). The contract can be concluded in this way.
[0089] The first housing 1120 has a first housing side 1121 and a second housing side 1122. 2, a third housing side 1123, and a fourth housing side 1124. A detailed explanation of this will be given later.
[0090] The first member 1126 may be disposed in the first housing 1120. The first member 1126 may include: The first member 1126 may be disposed between the second member 1131a and the housing. The first member 1126 may be disposed within or included in the second member 1131a. The first member 1126 can be connected to a holder 1131. The first member 1126 is penetrated by a second member 1131a. The second member 1131a can be coupled to the holder 1131. This allows the first member 112 6 can be at least partially located between the second member 1131a and the holder 1131. This will be explained later.
[0091] The mover 1130 is a holder 1131 and an optical element mounted on the holder 1131. Including 1132.
[0092] The holder 1131 can be seated in the receiving portion 1125 of the first housing 1120. 1131 is a first housing side 1121, a second housing side 1122, a third housing side The outer surface of the first holder to the outer surface of the fourth holder corresponding to the holding side portion 1123 and the first member 1126, respectively. For example, the first holder outer surface to the fourth holder outer surface may include the first housing outer surface. housing side 1121, second housing side 1122, third housing side 1123, first The inner surface of each of the members 1126 may correspond to or face each other.
[0093] The holder 1131 may also include a second member 1131a disposed in the fourth seating groove. This will be explained in more detail later.
[0094] The optical member 1132 can be mounted on the holder 1131. The optical element 1132 may have a seating surface, which may be formed by a receiving groove. It can be a mirror or a prism. In the following, we will refer to a prism as Although shown as a reference, it may also be made up of multiple lenses as in the above-mentioned embodiment. Alternatively, the optical element 1132 may be composed of multiple lenses and prisms or mirrors. The optical member 1132 may include a reflecting portion disposed therein. However, the present invention is not limited thereto. It is not something that can be done.
[0095] The optical member 1132 also reflects light reflected from the outside (for example, an object) to the camera module. In other words, the optical element 1132 can reflect the reflected light into the interior of the filter. Changes were made to improve the spatial limitations of the first and second camera actuators. This allows the camera module to minimize its thickness while maintaining a light path. It should be understood that it can be expanded to provide a higher range of magnification.
[0096] In addition, the second member 1131a may be coupled to the holder 1131. The second member 1131 may be disposed outside the holder 1131 and inside the housing. 131a is located in the area other than the fourth mounting groove on the outer surface of the fourth holder from the holder 1131. Through this, the second member 1131a can be seated in the additional groove of the holder 1131. The first member 1126 is connected to the second member 1131a and the holder 1131. For example, at least a portion of the first member 1126 may be located between the second member 113 and the first member 1126. 1a and the holder 1131.
[0097] Also, the second member 1231a may be a structure separated from the holder 1131. This configuration makes it easy to assemble the first camera actuator, as will be described later. Alternatively, the second member 1131a may be integrally formed with the holder 1131. , which will be described below as a separated structure.
[0098] The rotating portion 1140 is a tilting guide portion 1141 and a tilting guide portion 1141. It includes a second magnetic body 1142 and a first magnetic body 1143 having mutually opposite polarities.
[0099] The tilt guide portion 1141 is connected to the mover 1130 and the first housing 1120. Specifically, the tilt guide portion 1141 can be combined with the holder 1131 and the first member 1126. Thereby, the tilt guide portion 1141 can be disposed between the mover of the holder 1131. However, unlike the above, In this embodiment, the tilt guide portion 1141 is disposed between the first member 1126 and the holder 1131. Specifically, the tilt guide portion 1141 may be disposed between the first member 1126 and the holder 11. 31 and the fourth mounting groove.
[0100] In the third direction (Z-axis direction), the second member 1131a, the first member 1126, and the tilt guide portion 11 41 and the holder 1131. In addition, the second magnetic body 1142 and the first magnetic body 1143 are the first groove gr1 formed in the second member 1131a and the first member 112 In this embodiment, the first groove gr1 and the second groove g The position of r2 may be different from the first and second grooves described in the other embodiments above. The first groove gr1 is located in the second member 1131a and moves together with the holder, and the second groove g r2 is located on the first member 1126 in correspondence with the first groove gr1, and is located on the first housing 1120 This term is used interchangeably to explain the term.
[0101] In addition, the tilt guide portion 1141 can be disposed adjacent to the optical axis. The actuator according to the embodiment facilitates changing the optical path in response to the first and second axis tilts described later. It can be done easily.
[0102] The tilt guide portion 1141 includes a first protrusion portion disposed apart from the first protrusion portion in the first direction (X-axis direction), and a second protrusion disposed apart in the second direction (Y-axis direction). The first and second protrusions may protrude in opposite directions. This will be described in detail later. .
[0103] Also, as described above, the second magnetic body 1142 can be located within the second member 1131a. Additionally, the first magnetic body 1143 may be located within the first member 1126 .
[0104] The second magnetic body 1142 and the first magnetic body 1143 may have the same polarity. The second magnetic body 1142 may be a magnet having a north pole, and the first magnetic body 1143 may be a magnet having a north pole. Alternatively, the second magnetic body 1142 may be a magnet with a south pole. The first magnetic body 1143 may be a magnet having a south pole.
[0105] For example, the first pole surface of the first magnetic body 1143 and the second magnetic body 114 The two second polar faces may have the same polarity.
[0106] The second magnetic body 1142 and the first magnetic body 1143 have a repulsive force (r With this configuration, it is possible to generate an exponential force. The repulsive force is generated by the second member 1131a coupled to the second magnetic body 1142 or the holder 11. 31 and the first member 1126 coupled to the first magnetic body 1143, or the first housing 1120 At this time, the repulsive force acting on the second member 1131a is applied to the second member 1131a. This allows the second member 1131a and the first member The tilt guide portion 1141 disposed between the tilt guide portion 1126 and the tilt guide portion 1141 can be pressed by the repulsive force. That is, the repulsive force is generated when the tilt guide portion 1141 moves the holder 1131 and the first housing 1120 (or With this configuration, the X-axis The position between the mover 1130 and the first housing 1120 is maintained even during tilt or Y-axis tilt. The tilt guide portion can be held by the first magnetic body 1143 and the second magnetic body 1142. The repulsive force between them allows the first member 1126 and the holder 1131 to be tightly attached to each other.
[0107] The first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, and a Hall sensor. The first substrate portion 1153, the second substrate portion 1154, and the yoke portion 1155 are included. This will be discussed later.
[0108] FIG. 6a is a perspective view of a first housing of a first camera actuator according to an embodiment; 6b is a perspective view in a different direction from FIG. 6a, and FIG. 6c is a perspective view of the first camera actuator according to the embodiment. FIG. 2 is a front view of the first housing of the motor.
[0109] Referring to FIGS. 6a to 6c, the first housing 1120 according to the embodiment includes: The first member 1126 may include a housing side portion 1121 to a fourth housing side portion 1124. , can be integrally formed by being coupled with the first housing 1120. 26 may be configured to be included in the first housing 1120. 1120 may be integrally formed by being connected to the first member 1126. Alternatively, the first housing 1120 may include a first member 1126 .
[0110] The first housing side portion 1121 and the second housing side portion 1122 are arranged to face each other. Also, the third housing side 1123 and the fourth housing side 1124 may be arranged as follows. may be arranged opposite each other.
[0111] The third housing side 1123 and the fourth housing side 1124 are connected to the first housing. The second housing side 1122 may be disposed between the first housing side 1121 and the second housing side 1122.
[0112] The third housing side 1123 and the fourth housing side 1124 are 1121, second housing side 1122, and fourth housing side 1124. The third housing side 1123 may be the bottom surface of the first housing 1120. The fourth housing side portion 1124 is the upper surface of the first housing 1120. The same applies to the explanation of the direction as described above.
[0113] And, the first housing side portion 1121 may include a first housing hole 1121a. A first coil, which will be described later, may be located in the first housing hole 1121a.
[0114] The second housing side 1122 may also include a second housing hole 1122a. The second housing hole 1122a is provided with a second coil 1152b, which will be described later. obtain.
[0115] The first housing side portion 1121 and the second housing side portion 1122 are It can be an aspect of 1120.
[0116] The first coil and the second coil may be coupled to the first substrate portion. The coil is electrically connected to the first substrate portion so that a current can flow through the coil. It is an element of electromagnetic force that allows the actuator to tilt around the X axis.
[0117] Additionally, the third housing side 1123 may include a third housing hole 1123a.
[0118] The third housing hole 1123a may accommodate a third coil, which will be described later. The coil 1152c is electrically connected to the first substrate portion that contacts the first housing 1120. , and can be coupled to each other. Thus, the third coil is electrically connected to the first substrate portion, and the This current can be supplied from the first board. Eta is the element of electromagnetic force that can tilt around the Y axis.
[0119] Between the first housing side portion 1121 and the fourth housing side portion 1124, the first member 11 Therefore, the first member 1126 is positioned on the third housing side portion 1123. For example, the first member 1126 may be located on one side. The member 1126 and the holder may be positioned sequentially.
[0120] The fourth housing side 1124 is connected to the first housing side 1121 and the second housing side 1122. 122, and the first housing side portion 1121, the second housing side portion 1122, and and third housing side 1123.
[0121] Additionally, the fourth housing side 1124 may include a fourth housing hole 1124a. The fourth housing hole 1124a may be located above the optical element, so that the light 4. The light can pass through the housing hole 1124a and enter the optical element.
[0122] The first housing 1120 is made up of a first housing side portion 1121 to a fourth housing side portion 1122. The housing 1125 may include a housing formed by a component 1124. The first member 1126, the second member 1131a, and the mover 1130 may be positioned in this manner.
[0123] The first housing 1120 also has a fifth housing side facing the first member 1126. The fifth housing side may further include the first housing side 1121 and the third housing side 1122. The first housing side 1121 and the second housing side 1122 are disposed between the first housing side 1121 and the second housing side 1122. The fifth housing side 1122 and the third housing side 1123 may be in contact with each other. The portion includes an aperture area to provide a path for light reflected from the optical element 1132 to travel. The fifth housing side may also include a protrusion or groove to allow the fifth housing side to be attached to the adjacent This allows for easy connection with other camera actuators. The fifth housing side has an opening formed therein to provide an optical path. By improving the bonding strength between the part and other components, the movement of the aperture due to separation is suppressed, and the optical path is The changes can be minimized.
[0124] As described above, the first member 1126 is coupled to the first housing 1120. The first housing 1120 may be configured as a single housing. , may include a first member 1126.
[0125] The first member 1126 may then be disposed in the first housing 1120. The material 1126 can be located within the first housing 1120 .
[0126] The first member 1126 may then be coupled to the first housing 1120. The member 1126 is positioned between the first housing side 1121 and the second housing side 1122. The first member 1126 may be disposed between the third housing side portion 1123 and the fourth housing side portion 1124. It may be located between the section 1124.
[0127] The first member 1126 is located on the third housing side portion 1123 and is connected to the first housing side portion 1124. The housing side portion 1121 to the third housing side portion 1123 can be in contact with each other.
[0128] A first stopper 1121b may be located on the inner surface of the first housing side portion 1121. In addition, a second stopper 1122b is located on the inner surface of the second housing side portion 1122. obtain.
[0129] The first stopper 1121b and the second stopper 1122b are arranged with the first direction (X-axis direction) as a reference. The first stopper 1121b and the second stopper 1122b may be positioned symmetrically in the first direction. With this configuration, the first member 1126 can be extended in the X-axis direction. Even if the object moves into the ring 1120, the first stopper 1121b and the second stopper 1122b prevent the object from moving. That is, the first stopper 1121b and the second stopper 1122b can be maintained in the first position. One member 1126 may be maintained on one side of the first housing 1120 .
[0130] Furthermore, the first stopper 1121b and the second stopper 1122b are arranged to position the first member 1126. The position of the tilt guide part is fixed between the first member 1126 and the mover, and vibration is prevented. This makes it possible to eliminate error factors such as the above. The actuator allows for precise X-axis and Y-axis tilt.
[0131] In addition, in the second direction (Y-axis direction) between the first stopper 1121b and the second stopper 1122b The separation distance L2 is smaller than the maximum length L1 of the first member 1126 in the second direction (Y-axis direction). This allows the first member 1126 to be attached to the first housing 1120. The first housing 1120 may be assembled or inserted from the side.
[0132] The first member 1126 also has a second protrusion groove PH2 in which the second protrusion of the tilt guide part is seated. The second protruding groove PH2 may be located on the inner surface 1126s1 of the first member 1126. Therefore, the first member 1126 is configured such that the protrusion (for example, the second protrusion) of the tilt guide portion is positioned in the fourth seating groove. The protrusion, which is the reference axis of tilt, is located adjacent to the prism in the This will allow the holder to be positioned close to the tilt position. The moment that moves the mover 1130 can be minimized, thereby driving the coil. The operating current consumption is also minimized, so that the power consumption of the camera actuator can be reduced.
[0133] The first member 1126 may also include through holes 1126a and 1126b. The hole may be plural and may be composed of a first through hole 1126a and a second through hole 1126b.
[0134] The first through-hole 1126a and the second through-hole 1126b are provided with the first through-hole of the second member (described later). The second extension portion can pass through each of the first and second members. That is, the first housing and the mover can be coupled to each other.
[0135] A second protruding groove PH2 is formed between the first through hole 1126a and the second through hole 1126b. With this configuration, the gap between the tilt guide portion 1141 and the first member 1126 can be The coupling force is improved, and the tilt caused by the tilt guide part 1141 moving within the first housing is reduced. The accuracy reduction can be blocked.
[0136] In addition, a second groove gr2 may be located on the outer surface 1126S2 of the first member 1126. The first magnetic body can be seated in the groove gr2. 2 can face the inner surface of the second member or the member base portion. The second magnetic body and the first magnetic body of the first member 1126 face each other and are arranged in the above-mentioned manner. This allows the first member 1126 to move toward the tilt guide portion 1124 by the repulsive force. The mover moves inward or presses the holder, so that the mover moves in the first place even without current injection into the coil. The holder and the housing may be spaced a predetermined distance from the third housing side. The tilt guide portion arranged between the holder and the housing (for example, the first member) That is, the coupling force between the mover and the housing and the tilt guide part is can be maintained.
[0137] In addition, when the first member 1126 is integrally formed with the first housing 1120, the first member The bonding strength between the material 1126 and the first housing 1120 is improved, and the camera actuator Reliability may be improved. Also, when configured separately, the first member 1126 and the first housing The ease of assembly and manufacturing with the ring 1120 can be improved.
[0138] In this embodiment, the first member 1126 has the first through-hole 1126a and The first through-hole 1126a and the second through-hole 1126b may be included. The holes 1126b may be arranged side by side in the second direction (Y-axis direction) and overlap each other.
[0139] The first member 1126 has a first through-hole 1126a and a second through-hole 1126b. The upper member UA is located on the upper side of the first through-hole 1126a and the second through-hole 1126b. 1126b, and a lower member BA located at the bottom of the first through-hole 1126b. The first member 1126 may have a through-hole 1126a and a second through-hole 1126b located in the middle of the first member 1126. That is, the first member 1126 has a first through-hole 1126a and a second through-hole 1126b. b. That is, the upper member UA and the lower member B A can be connected to each other via a connecting member MA. The lower member BA can be connected to the first and second The through holes may be plural in number and spaced apart from each other in the second direction (Y-axis direction). It can be arranged.
[0140] As a result, the first member 1126 can have improved rigidity by having the upper member UA. For example, the stiffness of the first member 1126 may be increased compared to when the upper member UA is not present. For example, in this embodiment, the stiffness may be expressed in units of N / μm. The reliability of the first camera actuator may be improved.
[0141] In addition, a first engagement groove 1126k may be located on the outer surface 1126S2 of the first member 1126. The first engagement groove 1126k may be located on the edge of the outer surface 1126S2 of the first member 1126. In particular, the first engagement groove 1126k has an end (for example, For example, it may be located on the left or right side (for example, on the left or right side) so as to be adjacent to the first housing side portion 1121.
[0142] The first engagement groove 1126k is formed between the first housing side portion 1121 and the second housing side portion 112 In the embodiment, the first engaging grooves 1121m and 1122m may be positioned to correspond to the second engaging grooves 1121m and 1122m. The groove 1126k is formed by the second groove of the first housing side portion 1121 and the second housing side portion 1122. The second engagement grooves 1121m and 1122m may be positioned to face each other. 122m is adjacent to the outer surface 1126S2 of the first member 1126 and forms the same surface. It may be located on the side.
[0143] In this embodiment, the first engaging groove 1126k and the second engaging grooves 1121m and 1122m are plural. The first engaging grooves 1126k and the second engaging grooves 1121m and 1122m are The first and second directions may be symmetrically positioned in one direction or a second direction.
[0144] The first engagement groove 1126k and the second engagement grooves 1121m and 1122m are provided with a joining member. That is, the joining member is applied to the first housing side (or the second housing side ) and the first member 1126 to form a seal between the housing 1120 and the first member 1126 The bonding strength can be improved. Such a bonding material is made of epoxy or the like. It may include, but is not limited to, such materials.
[0145] Additionally, the first member 1126 may further include a first protrusion and a second protrusion. The first protrusion may contact the first housing side, and the second protrusion may contact the second housing side. may extend in the third direction (Z-axis direction) from one end of the outer surface 1126S2 of the first member. The second protrusion extends from the other end of the outer surface 1126S2 of the first member in the third direction (Z-axis direction). That is, the first protrusion and the second protrusion may extend toward the holder.
[0146] The first protrusion is maintained in position by the first stopper 1121b, and the second protrusion is maintained in position by the second stopper 1121c. Therefore, the position of the camera actuator according to the embodiment can be maintained by the actuator 1122b. The reliability can be improved.
[0147] FIG. 7 is a perspective view of an optical member of a first camera actuator according to an embodiment.
[0148] The optical member 1132 can be mounted on a holder. 2 can be a rectangular prism as a reflector, but is not limited to this.
[0149] In an embodiment, the optical member 1132 may have a protrusion (not shown) on a portion of the outer surface. The member 1132 can be easily coupled to the holder via a protrusion (not shown). In addition, the holder may have a groove or a protrusion so that it can be coupled with the optical member 1132. do.
[0150] In addition, the optical member 1132 can be mounted such that the bottom surface 1132b is mounted on the mounting surface of the holder. Therefore, the bottom surface 1132b of the optical member 1132 can correspond to the mounting surface of the holder. The bottom surface 1132b may be an inclined surface that is the same as the mounting surface of the holder. The prism moves with the movement of the optical element 1132, and the optical element 1132 is removed from the holder. It can prevent separation.
[0151] In addition, a groove is formed on the bottom surface 1132b of the optical member 1132, and a bonding material is applied to the groove. The member 1132 can be coupled to the holder, or the groove or protrusion of the holder can be fitted to the joint. A material may be applied to bond the holder to the optical element 1132 .
[0152] As described above, the optical member 1132 also receives light reflected from the outside (for example, an object). The optical member 1 may have a structure capable of reflecting light toward the inside of the camera module. The optical element 1132 may also consist of a single mirror. The path of the camera actuator is changed to accommodate the spatial limitations of the first and second camera actuators. This allows the camera module to be minimized in thickness while improving the field of view. It should be understood that the light path can be extended to provide a higher range of magnification. The camera module including the camera actuator according to the embodiment has a minimized thickness. It should be understood that the light path can also be extended to provide a higher range of magnification.
[0153] FIG. 8a is a perspective view of a holder for a first camera actuator according to an embodiment, and FIG. 8a is a bottom view of a holder for a first camera actuator according to an embodiment; FIG. 8b is a bottom view of a holder for a first camera actuator according to an embodiment; 8a is a front view of a holder for a first camera actuator according to an embodiment; FIG. 8b is a front view of a holder for a first camera actuator according to an embodiment; 8a is a rear view of the second part of the first camera actuator according to an embodiment; and FIG. 8b is a rear view of the second part of the first camera actuator according to an embodiment. FIG. 10 is a bottom view of the second member of the Eta.
[0154] 8a to 8e, the holder 1131 is a mounting member on which the optical member 1132 is mounted. The mounting surface 1131k may be an inclined surface. The holder 1131 may include a step on the top of the seating surface 1131k. Thus, the step can be mated with a protrusion (not shown) of the optical member 1132 .
[0155] The holder 1131 may include multiple outer surfaces. For example, the holder 1131 may include a first Holder outer surface 1131S1, second holder outer surface 1131S2, outside of third holder The fourth holder may include a surface 1131S3 and an outer surface 1131S4 of the fourth holder.
[0156] The first holder outer surface 1131S1 faces the second holder outer surface 1131S2. That is, the first holder outer surface 1131S1 can be positioned so that the second holder outer surface 1131S1 is It can be arranged symmetrically with respect to 131S2 with respect to the first direction (X-axis direction).
[0157] The first holder outer surface 1131S1 may be positioned to correspond to the first housing side. That is, the first holder outer surface 1131S1 faces the first housing side. The second holder outer surface 1131S2 may be located at a position corresponding to the second housing side. That is, the second holder outer surface 1131S2 may be positioned so as to contact the second housing. It may be positioned opposite the side.
[0158] In addition, the first holder outer surface 1131S1 may include a first seating groove 1131S1a. The second holder outer surface 1131S2 may include a second seating groove 1131S2a. The seating groove 1131S1a and the second seating groove 1131S2a are aligned with the first direction (X-axis direction) as the reference. The electrodes may be arranged symmetrically with respect to each other.
[0159] The first seating groove 1131S1a and the second seating groove 1131S2a are aligned in the second direction (Y-axis direction). ) and the first mounting groove 1131S1a may be provided with a first magnet. A second magnet 1151a can be disposed in the second seating groove 1131S2a, and a second magnet 1151b can be disposed in the second seating groove 1131S2a. The first magnet 1151a and the second magnet 1151b can also be arranged in the first direction (X The first magnet to the second magnet may be arranged symmetrically with respect to the axial direction. It will be appreciated that the third magnet may be coupled to the housing via a yoke or a joining member. It should be.
[0160] As mentioned above, the positions of the first and second mounting grooves and the first and second magnets determine the position of each magnet. The electromagnetic force induced by the nozzle is applied to the outer surface of the first holder S1231S1 and the outer surface of the second holder S2. For example, the first holder outer surface S1231S1 may be provided on the same axis as the surface 1131S2. The area where the electromagnetic force is strongest (e.g., the area where the electromagnetic force is strongest) and the outer surface of the second holder S1231 The area on S1 where the electromagnetic force is strongest (for example, the area where the electromagnetic force is strongest) is parallel to the second direction (Y-axis direction). This allows for accurate X-axis tilting.
[0161] The first mounting groove 1131S1a may accommodate a first magnet 1151a, and the second mounting groove 1131S1b may accommodate a second magnet 1151a. A second magnet 1151b may be disposed in 131S2a.
[0162] The third holder outer surface 1131S3 is a surface of the first holder outer surface 1131S1 and the second holder outer surface 1131S2. - contacts with the outer surface 1131S2, the first holder outer surface 1131S1 and the second holder outer surface It may be an outer surface extending in the second direction (Y-axis direction) from one side of 1131S2. The outer surface 1131S3 of the first holder is made of the outer surface 1131S1 of the second holder. The third holder outer surface 1131S3 may be located between the holder 1131 That is, the third holder outer surface 1131S3 may be the bottom surface of the third housing. The support member may be positioned opposite the support side.
[0163] In addition, the third holder outer surface 1131S3 may include a third seating groove 1131S3a. The third holder 1151c may be disposed in the third mounting groove 1131S3a. The outer surface 1131S3 may be positioned to face the third housing side 1123.
[0164] The third housing hole 1123a is connected to the third seating groove 1131S3a in the first direction (X Therefore, the third mounting groove 1131S3a can be at least partially overlapped with the third mounting groove 1131S3a in the axial direction. The magnet 1151c and the third coil 1152c in the third housing hole 1123a are The third magnet 1151c and the third coil 1151b may be positioned facing each other. 152c generates an electromagnetic force, which causes the second camera actuator to tilt along the Y axis. .
[0165] In addition, the X-axis tilt is achieved by using multiple magnets (first and second magnets 1151a and 1151b) ), whereas Y-axis tilt can be achieved only by the third magnet 1151c. do.
[0166] In this embodiment, the third seating groove 1131S3a is the first seating groove 1131S1a or the second seating groove 1131S1b. This configuration allows for a wider area than the 131S2a. can be achieved by current control similar to the X-axis tilt.
[0167] The fourth holder outer surface 1131S4 is the first holder outer surface 1131S1 and the second holder outer surface 1131S2. - outer surface 1131S2, and the first holder outer surface 1131S1 and the second holder outer surface 1131S2 131S2 in the first direction (X-axis direction). The side surface 1131S4 is a first holder outer surface 1131S1 and a second holder outer surface 1131S2. 2. That is, the fourth holder outer surface 1131S4 faces the first member. The electrodes can be positioned to fit together.
[0168] The fourth holder outer surface 1131S4 may include a fourth seating groove 1131S4a. The tilt guide part 1141 may be positioned in the groove 1131S4a. The second member 1131a and the first member 1126 can be positioned in the fourth seating groove S4a. 1131S4a may include multiple regions: a first region AR1, a second region AR2, and It may include a third region AR3.
[0169] The second member 1131a may be located in the first area AR1. , can overlap with the second member 1131a in the first direction (X-axis direction). This may be the area where the base portion of the second member 1131a is located. 1 may be located on the fourth holder outer surface 1131S4. That is, the first region AR1 may be In this case, the first area AR 1 may not be a region within the fourth seating groove 1131S4a.
[0170] The first member 1126 may be located in the second area AR2. It can overlap with the first member 1126 in the first direction (X-axis direction).
[0171] Also, the second area AR2 is located on the fourth holder outer surface 1131S4, like the first area. That is, the second area AR2 is located above the fourth seating groove 1131S4a. It can correspond to the area.
[0172] The third area AR3 may include a tilt guide portion. That is, the third region AR3 may be a tilt guide portion (for example, It can overlap with the base in the first direction (X-axis direction).
[0173] Also, the second region AR2 may be located between the first region AR1 and the third region AR3.
[0174] The second member 1131a is disposed in the first area AR1, and the second member 1131a is disposed in the first groove gr1. In an embodiment, the second member 1131a may include a first portion formed on the inner surface 1131aas. The first groove gr1 may include a second magnetic body disposed therein, as described above. It is possible.
[0175] As described above, the first member can be disposed in the second area AR2. For example, the first groove gr1 may be positioned opposite the second groove gr2. 2 and 3, and may overlap at least partially in the third direction (Z-axis direction).
[0176] Then, the repulsive force generated from the second magnetic body is applied to the fourth stabilizer of the holder 1131 via the second member. The magnetic force generated from the second magnetic body can be transmitted to the receiving groove 1131S4a. A force can be applied to the tilt guide portion in the same direction as the repulsive force.
[0177] The first member may include a second groove gr2 formed on the outer surface thereof and facing the first groove gr1. In addition, the first member may include a second protruding groove formed on the inner surface thereof, as described above. The second protrusion can be seated in the second protrusion groove.
[0178] In addition, similar to the second magnetic body, the repulsive force generated by the first magnetic body and the second magnetic body acts on the first member. Therefore, the first member and the second member are connected to each other through a repulsive force. 1 and the tilt guide portion disposed therebetween can be pressed.
[0179] A tilting guide portion 1141 may be arranged in the third area AR3. The first protrusion groove PH1 may be located in the fourth seating groove 1131S4a. The first protrusion of the tilt guide portion 1141 can be accommodated in the groove PH1. The protrusion PR1 can contact the first protrusion groove PH1. The first protrusion groove PH1 has a maximum diameter equal to the diameter of the first protrusion P This also applies to the second protruding groove and the second protruding portion PR2. That is, the second protrusion groove has a maximum diameter corresponding to the maximum diameter of the second protrusion portion PR2. As a result, the second protrusion can come into contact with the second protrusion groove. The first axis tilt can be easily performed using the first protrusion as a reference, and the second axis tilt can be easily performed using the second protrusion as a reference. The tilt radius can be improved.
[0180] In addition, in the embodiment, the first protrusion groove PH1 may be plural. For example, the first protrusion groove PH1 and The first protrusion groove PH1a and the second protrusion groove PH2 are connected to each other. Hereinafter, the first protrusion groove PH1 may include the 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b. The following description will be made assuming that the second protrusion groove PH For example, the second protrusion groove PH2 can be applied to the second protrusion groove PH1 and the second protrusion groove PH2. The protrusion groove No. 2-1 is the same as the protrusion groove No. 1-1, and the protrusion groove No. 2-2 is The description of the first and second protruding grooves can be applied to the raised grooves.
[0181] The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b are aligned in the first direction (x-axis direction). The first-first protrusion groove PH1a and the first-second protrusion groove PH1b can be arranged in the same manner. The lengths may be the same.
[0182] The first protruding grooves PH1 may have different numbers of inclined surfaces. PH1 may include a groove bottom surface and an inclined surface. In this case, the number of inclined surfaces of the plurality of protruding grooves is The width of the bottom surface of the protruding groove may also be different.
[0183] For example, the first protrusion groove PH1a may include a first groove bottom surface LS1 and a first inclined surface CS1. The first-second protrusion groove PH1b may include a second groove bottom surface LS2 and a second inclined surface CS2.
[0184] In this case, the first groove bottom surface LS1 and the second groove bottom surface LS2 may have different areas. The width of the groove bottom surface LS1 can be made smaller than the width of the second groove bottom surface LS2.
[0185] The number of first inclined surfaces CS1 in contact with the first groove bottom surface LS1 is equal to the number of second inclined surfaces CS2. For example, the number of first inclined surfaces CS1 may be greater than the number of second inclined surfaces CS2. It is possible.
[0186] This configuration allows for easy assembly tolerance of the first protrusion seated in the first protrusion groove PH1. For example, the number of first inclined surfaces CS1 can be easily complemented by the number of second inclined surfaces CS2. Since the number of the first protrusions is larger than the number of the first protrusions, the first protrusions contact the larger number of the inclined surfaces and are inserted into the first protrusion groove PH1a. 1 The position of the protrusion can be maintained more accurately.
[0187] In contrast to this, in the first-second protruding groove PH1b, the number of inclined surfaces that contact the first protruding portion is the second. The size is smaller than the protrusion groove PH1a of 1-1, so the position of the first protrusion can be easily adjusted. obtain.
[0188] In an embodiment, the second inclined surfaces CS2 may be spaced apart from each other in the second direction (Y-axis direction). The second groove bottom surface LS2 extends in the first direction (X-axis direction), and the first protrusion forms a second inclined surface It can easily move in the first direction (X-axis direction) while in contact with CS2. In the first-second protrusion groove PH1b, the position of the first protrusion can be easily adjusted. The ease of assembly can also be improved.
[0189] In this embodiment, the first area AR1, the second area AR2, and the third area AR3 are The height may be different in one direction (X-axis direction). In this embodiment, the first area AR1 is The height in the first direction (X-axis direction) can be made larger than that of the third region AR1 and the third region AR2. As a result, a step may be formed between the first area AR1 and the second area AR2.
[0190] The second member 1131a may include a first groove gr1. The first groove gr1 may be located on the inner surface of the first groove 1aa. The second magnetic bodies can be seated in the first grooves gr1. That is, the number of first grooves gr1 may correspond to the number of second magnetic bodies.
[0191] The second member 1131a includes a member base portion 1131aa, a first extension portion 1131ab, and a second extension 1131ac.
[0192] The member base portion 1131aa may be located at the outermost side of the first camera actuator. The base portion 1131aa may be located outside the first member. The base portion 1131aa can be positioned between the base portion 1131aa and the tilt guide portion.
[0193] The first extension portion 1131ab extends from the edge of the component base portion 1131aa in the third direction (Z-axis direction). That is, the first extension portion 1131ab can be extended from the component base portion 1131aa to The second extension portion 1131ac can be extended toward the holder 1131. The second extension portion 1131ac extends in a third direction from the edge of the component base portion 1131aa. In the embodiment, the first extension portion 1131ab and the second extension portion 1131 ac may be located on the edge of the component base portion 1131aa in the second direction (Y-axis direction). The first extension 1131ab and the second extension 1131ac are disposed between the upper member and the lower member. It can be done.
[0194] As a result, the second member 1131a is made up of a first extension portion 1131ab and a second extension portion 1131a. c. That is, the groove ove) may be located between the first extension portion 1131ab and the second extension portion 1131ac. As a result, the first extension portion 1131ab and the second extension portion 1131ac are With this configuration, the second member 1131a can be connected to each other only by aa. The repulsive force due to the second magnetic body seated in the center of the member base portion 1131aa, particularly the first groove gr1 can be received continuously.
[0195] The second member 1131a is coupled to the holder and moves when tilting along the X axis and the Y axis. When the second member 1131a moves, the rigidity of the second member 1131a may be greater than the rigidity of the first member. .
[0196] Furthermore, as described above, the first member according to the embodiment may have an upper member and a lower member. This configuration can increase the stiffness. This allows the second member 1131a and the holder connected to the second member 1131a to When the second member 1131a and the first member 1131b are tilted along the X axis or the Y axis, the second member 1131a is tilted along the X axis or the Y axis. The adjacent distance between the first member and the second member is reduced, and the first member may come into contact with the first member. As mentioned above, the improved rigidity allows the stopper to easily perform its function. That is, the reliability of the camera actuator can be improved.
[0197] Furthermore, the difference in rigidity between the first and second members is reduced, reducing damage or loss due to contact during tilting. Therefore, damage to the camera actuator can be minimized, i.e., the reliability of the camera actuator can be improved.
[0198] The first extension portion 1131ab is connected to the second extension portion 1131ac in the second direction (Y-axis direction). The first member and the tilt guide part can be spaced apart to form a spaced apart space. In addition, a second magnetic body and a first magnetic body may be located in the space.
[0199] In addition, the first extension portion 1131ab and the second extension portion 1131ac are The length may be the same. This allows the binding force and weight to be well balanced, The tilt of the camera can be accurately performed without tilting to one side.
[0200] The first extension portion 1131ab and the second extension portion 1131ac are coupled to the holder. In this specification, the term "bonding" refers to bonding via a joining member in addition to the above-mentioned projection and groove structure. It should be understood that the first extension portion 1131ab and the second extension portion 1131b may be connected to each other. The second extension portion 1131ac is provided with a third engagement groove 1131k formed in the third direction (Z-axis direction). In addition, the fourth seating groove 1131S4a may include a first extension 1131ab and a second extension An engaging protrusion 1131m is positioned in the area overlapping with the long portion 1131ac in the third direction (Z-axis direction). The engagement protrusion 1131m can be positioned corresponding to the third engagement groove 1131k.
[0201] For example, a bonding material such as epoxy may be applied to the third engagement groove 1131k. The engaging protrusion 1131m is a third engaging portion between the first extending portion 1131ab and the second extending portion 1131ac. With this configuration, the second member 1131a and the holder 1131a and the second member 1131b can be bonded to each other. The repulsive force can be transmitted to the holder 1131 .
[0202] However, as noted above, it should also be understood that the projection and groove structures may be displaced relative to one another. It is.
[0203] FIG. 9a is a perspective view of a tilt guide portion of a first camera actuator according to an embodiment; 9b is a perspective view in a direction different from that of FIG. 9a, and FIG. 9c is a cross-sectional view seen from FF' in FIG. 9a. .
[0204] The tilt guide part 1141 according to the embodiment includes a base BS and a first surface 1141a of the base BS. a first protrusion PR1 protruding from the second surface 1141b of the base BS; Depending on the structure, the first protrusion and the second protrusion may be formed. The first protrusion PR1 and the second protrusion PR2 may be opposite in appearance, but the following description will be given based on the drawings. The second protrusion PR2 may be formed integrally with the base BS, and may be separated from the first protrusion PR1 and the second protrusion PR2 as shown in the drawing. It should be understood that the two protrusions PR2 may have a spherical shape like a ball.
[0205] First, the base BS has a first surface 1141a and a second surface 1141b facing the first surface 1141a. That is, the first surface 1141a may be in contact with the second surface 1141b in the third direction (Z The tilt guide portion 1141 may be spaced apart in the axial direction (axial direction) and may be opposed to each other or may be directed to each other. It can be the mating outer surface.
[0206] The tilt guide portion 1141 includes a first protrusion PR1 extending to one side on the first surface 1141a. According to the embodiment, the first protrusion PR1 extends from the first surface 1141a toward the holder. The first protrusions PR1 are plural, and are designated by the first protrusion PR1a and the first protrusion PR1b. and a protrusion PR1b.
[0207] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b are arranged in the first direction (X-axis direction). That is, the first-first protrusion PR1a and the first-second protrusion PR1b can be positioned side by side. , can overlap in the first direction (X-axis direction). The first and second protrusions PR1a and PR1b are bisected by a virtual line extending in the first direction (X-axis direction). It is possible.
[0208] The first protrusion PR1a and the second protrusion PR1b have curvatures, for example, The first-first protrusion PR1a and the first-second protrusion PR1b may be spherical. The base BS is in contact with the first groove of the housing at a point furthest from the first surface 1141a. This can be done.
[0209] In addition, an alignment groove 1141aa may be located on the first surface 1141a. 41aa is disposed on one side of the first surface 1141a and serves as a tilt guide during the assembly process. The assembly position or assembly direction of the board portion 1141 can be provided.
[0210] The tilt guide portion 1141 has a second protrusion PR2 extending to one side on the second surface 1141b. According to an embodiment, the second protrusion PR2 may extend from the second surface 1141b to the housing. The second protrusions PR2 may be plural, and in the embodiment, It may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b.
[0211] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b are arranged in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side. can overlap in the second direction (Y-axis direction). a and the 2-2nd protrusion PR2b are bisected by a virtual line extending in the second direction (Y-axis direction). It can be done.
[0212] The second-first protrusion PR2a and the second-second protrusion PR2b may have a curvature, for example, a hemispherical shape. The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be formed as a base. The second member 1131a can be in contact with the second member 1131a at a point spaced apart from the second surface 1141b of the base BS. do.
[0213] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b are arranged in a second direction. According to an embodiment, the second protrusion PR2a may be located in a region between the second protrusion PR2a and the second-second protrusion PR2b. In the second direction, in the center of the separation space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b In this configuration, the first-first protrusion PR1a and the first-second protrusion PR1b can be located. Therefore, the actuator according to the embodiment has the same X-axis tilt angle based on the X-axis. That is, the tilt guide portion 1141 can have a range of the first-first protrusion PR1. a and the first-second protrusion PR1b as reference points, the range within which the holder can tilt in the X-axis (for example , positive / negative range) can be provided equally based on the X-axis.
[0214] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b are spaced apart from each other by the 1-1 protrusion PR2a in the first direction. It may be located in the region between the first protrusion PR1a and the first-second protrusion PR1b. For example, in the space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction, In the center, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be located. By the configuration, the actuator according to the embodiment has a Y-axis tilt angle that is the same as the Y-axis. That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b can be formed to have a single range. With PR2b as the reference, the tilt guide part 1141 and the holder are tilted in the Y-axis tiltable range ( For example, the positive / negative range can be provided uniformly based on the Y axis.
[0215] Specifically, the first surface 1141a has a first outer line M1, a second outer line M2, a third outer line M3, The first outer line M1 and the second outer line M2 face each other. The third outer line M3 and the fourth outer line M4 can face each other. A third outer line M3 and a fourth outer line M4 may be located between the lateral line M1 and the second outer line M2. The first outer line M1 and the second outer line M2 are perpendicular to the first direction (X-axis direction), but the third outer line M3 is perpendicular to the first direction (X-axis direction). The outer line M3 and the fourth outer line M4 may be parallel to the first direction (X-axis direction).
[0216] At this time, the first protrusion PR1 may be located on the first virtual line VL1. The line VL1 is a line that bisects the first outer line M1 and the second outer line M2. 3. The imaginary lines VL1 and VL1' are lines that bisect the base BS in the second direction (Y-axis direction). Therefore, the tilt guide portion 1141 can easily perform X-axis tilting via the first protrusion portion PR1. In addition, the tilt guide portion 1141 performs the X-axis tilt with the first virtual line VL1 as a reference. Therefore, the rotational force can be applied uniformly to the tilt guide portion 1141. The bolts can be precisely placed to improve the reliability of the device.
[0217] The first protrusion PR1a and the second protrusion PR1b are connected by a first virtual line VL1 and the second virtual line VL2 may be disposed symmetrically with respect to the first virtual line VL1. The first and second protrusions PR1a and PR1b may be positioned symmetrically with respect to the first center point C1. With this configuration, the supporting force exerted by the first protrusion portion PR1 during X-axis tilting is The second imaginary line VL2 can be applied equally to the upper and lower sides. The reliability of the movable guide portion can be improved. Here, the second virtual line VL2 is intersected by the third outer line M3 and the The second and fourth imaginary lines VL2 and VL2' are lines that bisect the outer line M4. It is a line that bisects the base BS in the first direction (X-axis direction).
[0218] The first center point C1 may be the intersection of the first virtual line VL1 and the second virtual line VL2. Alternatively, depending on the shape of the tilt guide portion 1141, it may be a point corresponding to the center of gravity.
[0219] The second surface 1141b has a fifth outer line M1', a sixth outer line M2', and a seventh outer line M3'. The fifth outer line M1' and the sixth outer line M2' are opposite each other. Therefore, the seventh outer line M3' and the eighth outer line M4' can face each other. Between the fifth outer line M1' and the sixth outer line M2', there are the seventh outer line M3' and the eighth outer line M4'. The fifth outer line M1' and the sixth outer line M2' are arranged in the first direction (X-axis direction) and The seventh outer line M3' and the eighth outer line M4' are parallel to the first direction (X-axis direction). It is possible.
[0220] In addition, the tilt guide portion 1141 tilts the Y axis with the fourth virtual line VL2' as a reference. Therefore, the rotational force can be applied uniformly to the tilt guide portion 1141. The bolts can be precisely placed to improve the reliability of the device.
[0221] The 2-1 protrusion PR2a and the 2-2 protrusion PR2b are connected by a fourth virtual line VL2 ', the protrusions PR2a and PR2b may be arranged symmetrically with respect to the third virtual line VL1'. The protrusion PR2b of 2-2 may be positioned symmetrically with respect to the second center point C1'. With this configuration, the supporting force supported by the second protrusion portion PR2 during Y-axis tilting is increased to the fourth It can be applied equally to the upper and lower sides of the tilt guide part with the virtual line VL2' as the reference. This can improve the reliability of the tilt guide portion. The second center point C1' is a line that bisects the outer line M1' and the sixth outer line M2'. , it may be the intersection of the third imaginary line VL1′ and the fourth imaginary line VL2′. Depending on the shape of 141, it may also be a point corresponding to the center of gravity.
[0222] In addition, the first direction (X axis) between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b The distance DR2 in the first direction (X-axis direction) is greater than the length of the second protrusion PR2 in the first direction (X-axis direction). As a result, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b can be made larger. When tilting the X axis based on the protrusion PR1b, the resistance caused by the second protrusion PR2 is minimized. It is possible.
[0223] Correspondingly, the second protrusion PR2a between the second-1 protrusion PR2a and the second-2 protrusion PR2b The distance ML2 in the second direction (Y-axis direction) of the first protrusion portion PR1 is Therefore, the length of the second-first protrusion PR2a and the second-first protrusion PR2b can be made larger than the length of the first protrusion PR2a. When tilting the Y axis with the protrusion PR2b of 2-2 as the reference, the resistance by the first protrusion PR1 The resistance can be minimized.
[0224] FIG. 10 is a diagram illustrating a first drive unit of a first camera actuator according to an embodiment.
[0225] Referring to FIG. 10, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, and a driving coil 1153. 152, a Hall sensor portion 1153, a first substrate portion 1154, and a yoke portion 1155.
[0226] As described above, the drive magnet 1151 provides a driving force by electromagnetic force. First magnet 1151a, second magnet 1151b, and third magnet 1151c The first magnet 1151a, the second magnet 1151b, and the third magnet 1151c may each be located on the outer surface of the holder 1131.
[0227] Additionally, the drive coil 1152 may include multiple coils. 52 includes a first coil 1152a, a second coil 1152b, and a third coil 1152c. It can be seen.
[0228] The first coil 1152a may be positioned to face the first magnet 1151a. As a result, the first coil 1152a is connected to the first housing side portion 1121 as described above. The second coil 1152b may be located in the housing hole 1121a. The second coil 1152b may be positioned opposite the net 1151b. As described above, the second housing hole 1122a of the second housing side portion 1122 is located possible.
[0229] The second camera actuator according to the embodiment includes a drive magnet 1151 and a drive coil 11 52 moves the mover 1130 in the first axis (X-axis direction) or the second axis (Y-axis direction). By controlling the rotation, decentering and tilting can be achieved when implementing OIS. The occurrence of the tilt phenomenon can be minimized to provide the best optical characteristics.
[0230] Also, according to the embodiment, a By realizing the OIS through the tilt guide part 1141 of the rotating part 1140, the actuator Eliminates size limitations of the camera and produces ultra-slim, ultra-compact camera actuators and A camera module may be provided.
[0231] The first substrate portion 1154 includes a first substrate side portion 1154a, a second substrate side portion 1154b, and a third substrate side portion 1154b. It may include a substrate side portion 1154c.
[0232] The first substrate side 1154a and the second substrate side 1154b are arranged to face each other. The third substrate side 1154c can be formed by connecting the first substrate side 1154a and the second substrate side 1154b.
[0233] Also, the first substrate side 1154a may be located between the first housing side and the shielding can, The second substrate side 1154b may be located between the second housing side and the shielding can. The third substrate side 1154c may be located between the third housing side and the shielding can, and the first substrate It may be the bottom surface of the portion 1154.
[0234] The first substrate side 1154a may be coupled to and electrically coupled with the first coil 1152a. The first substrate side portion 1154a is electrically connected to the first Hall sensor 1153a. They can be linked together.
[0235] The second substrate side 1154b may be coupled to and electrically coupled with the second coil 1152b. Also, the second substrate side portion 1154b may be coupled to and electrically connected to the first Hall sensor. It should also be understood that
[0236] The third substrate side 1154c may be coupled to and electrically coupled with the third coil 1152c. The third substrate side portion 1154c is electrically connected to the second Hall sensor 1153b. They can be linked together.
[0237] The yoke portion 1155 includes a first yoke 1155a, a second yoke 1155b, and a third yoke The first yoke 1155a is located in the first seating groove and may include a first magnet. The second yoke 1155b can be coupled to the second seating groove 1151a. The third yoke 1155 is positioned so as to be coupled with the second magnet 1151b. c is located in the third seating groove and can be coupled with the third magnet 1151c. The first to third yokes 1155a to 1155c are arranged to connect the first to third magnets. The mats 1151a to 1151c are easily seated in the first to third seating grooves and are connected to the housing. Make sure that
[0238] FIG. 11a is a perspective view of a first camera actuator according to an embodiment, and FIG. 11b is a perspective view of a first camera actuator according to an embodiment. FIG. 11a is a cross-sectional view seen from PP', and FIG. 11c is a cross-sectional view seen from QQ' in FIG. 11a.
[0239] 11a to 11c, the first coil 1152a is attached to the first housing side 11. 21, and the first magnet 1151a is positioned on the first holder outer surface 11 of the holder 1131. 31S1, so that the first coil 1152a and the first magnet 1151a The first magnet 1151a may be positioned opposite to the first coil 1152a. and may overlap at least partially in the second direction (Y-axis direction).
[0240] The second coil 1152b is located on the second housing side 1122, and the second magnet 1151b may be located on the second holder outer surface 1131S2 of the holder 1131. As a result, the second coil 1152b and the second magnet 1151b are positioned opposite each other. The second magnet 1151b is slightly spaced apart from the second coil 1152b in the second direction (Y-axis direction). There may be at least some overlap.
[0241] In addition, the first coil 1152a and the second coil 1152b are overlapped in the second direction (Y-axis direction). The first magnet 1151a and the second magnet 1151b are arranged in the second direction (Y-axis direction). They may overlap.
[0242] With this configuration, the outer surfaces of the holders (the first outer surface of the holder and the second outer surface of the holder) The electromagnetic force acting on the surface is parallel to the second direction (Y-axis direction), and the X-axis tilt is accurate. and can be performed precisely.
[0243] The second protrusions PR2a and PR2b of the tilt guide portion 1141 are provided on the first housing 11. The second protrusion PR2 can contact the first member 1126 of the first embodiment. The second protrusion groove PH2 can be placed in the protrusion groove PH2. The second protrusions PR2a and PR2b can be the reference axis (or rotation axis) of the tilt. This allows the tilt guide portion 1141 and the mover 1130 to move along the second direction. do.
[0244] As described above, the first hall sensor 1153a is electrically connected to the first substrate unit 1154. For practical connection and bonding, the element may be located externally, but is not limited to such a location. isn't it.
[0245] The third coil 1152c is located on the third housing side 1123, and the third magnet 1151c may be located on a third holder outer surface 1131S3 of the holder 1131. The coil 1152c and the third magnet 1151c are at least Therefore, the electromagnetic field between the third coil 1152c and the third magnet 1151c may be The intensity of energy can be easily controlled.
[0246] As described above, the tilt guide portion 1141 is formed on the fourth holder outer surface 1 of the holder 1131. The tilt guide portion 1141 may be located on the fourth holder outer surface 131S4. As described above, the fourth seating groove 1131 S4a may include the first area AR1, the second area AR2, and the third area AR3 described above.
[0247] The second member 1131a is disposed in the first area AR1, and the second member 1131a has a shape on the inner surface. The first groove gr1 may include a second magnetic field. The second magnetic body 1142 is disposed, and the repulsive force RF2 generated from the second magnetic body 1142 acts on the second member 1. 131a to the fourth seating groove 1131S4a of the holder 1131 (RF2 As a result, the holder 1131 is subjected to the repulsive force RF2 generated by the second magnetic body 1142. A force can be applied to the tilt guide portion 1141 in the same direction.
[0248] The first member 1126 may be disposed in the second region AR2. The first member 1126 may include a second groove gr2 facing the second groove gr1. The second protruding groove PH2 may be disposed on the corresponding surface. The generated repulsive force RF1 can be applied to the first member 1126. The first member 126 and the second member 1131a are repulsed by the generated repulsive forces RF1 and RF2'. 26 and the holder 1131. As a result, the current applied to the first, second or third coil 1152c Even after the holder is tilted in the X-axis or Y-axis, the holder 1131, the first housing The coupling between the block 1120 and the tilt guide portion 1141 can be maintained.
[0249] The tilt guide portion 1141 may be disposed in the third area AR3. As described above, the first protrusion PR1 and the second protrusion PR2 may be included. The protrusion PR1 and the second protrusion PR2 are connected to the second surface 1141b and the first surface 1141a of the base BS. In this way, in other embodiments described below, The first protrusion PR1 and the second protrusion PR2 are variously positioned on opposite surfaces of the base BS. obtain.
[0250] The first protrusion groove PH1 may be located in the fourth seating groove 1131S4a. The first protrusion PR1 of the tilt guide portion 1141 can be accommodated in H1. The protrusion PR1 can contact the first protrusion groove PH1. The first protrusion groove PH1 has a maximum diameter equal to or larger than the first protrusion groove PH1. This corresponds to the maximum diameter of the second protrusion groove PH2 and the second protrusion portion PR2. That is, the second protruding groove PH2 has a maximum diameter equal to that of the second protruding portion PR2. In addition, the second protrusion portion PR2 can correspond to the maximum diameter of the second protrusion groove PH2. With this configuration, the first axis tilt can be adjusted based on the first protrusion PR1. The second axis tilt can be easily performed based on the second protrusion PR2, and the tilt radius can be improved. do.
[0251] In addition, the tilt guide portion 1141 moves in the third direction (Z-axis direction) between the second member 1131a and the first member 1131b. The tilt guide part 1141 is arranged in parallel with the optical member 1126, and the tilt guide part 1141 is arranged in the first direction ( More specifically, in the embodiment, the first protrusion PR1 may overlap in the first direction (X-axis direction). The first protrusion PR1 can overlap with the optical member 1132 in the X-axis direction. A part of the third coil 1152c or the third magnet 1151c is in the first direction (X-axis direction). That is, in the camera actuator according to the embodiment, the tilt axis Each protrusion can be positioned adjacent to the center of gravity of the mover 1130. The movable guide portion can be positioned adjacent to the center of gravity of the holder. The camera actuator can minimize the moment that tilts the holder. The amount of current consumed by the coil to tilt the holder is also minimized. This can improve power consumption and device reliability.
[0252] In addition, the second magnetic body 1142 and the first magnetic body 1143 are connected to the third coil 1152c or It is also possible that the optical member 1132 does not overlap with the optical member 1132 in the first direction (X-axis direction). In the figure, the second magnetic body 1142 and the first magnetic body 1143 are connected to the third coil 1152c or the optical The optical member 1132 may be disposed apart from the optical member 1132 in the third direction (Z-axis direction). The coil 1152c has a smallest magnetic force transmitted from the second magnetic body 1142 and the first magnetic body 1143. As a result, the camera actuator according to the embodiment can be driven up and down (Y-axis tilt ) can be easily performed, minimizing power consumption.
[0253] Furthermore, as described above, the second Hall sensor 1152 located inside the third coil 1152c 153b senses the change in magnetic flux, which causes the third magnet 1151c and the second Hall sensor 1153b, the position sensing can be performed between the second Hall sensor 1153b. is turned off by the influence of the magnetic field formed by the second magnetic body 1142 and the first magnetic body 1143. The set voltage can be changed.
[0254] The first camera actuator according to the embodiment moves the second member 1131a, the second magnetic body 1142, first magnetic body 1143, first member 1126, tilt guide part 1141 and holder However, the second magnetic body is located in the second member, and the first magnetic body is located in the Located inside the first member, the second member, first member, tilt guide part, and holder are arranged in this order. It can be done.
[0255] In this embodiment, the second magnetic body 1142 and the first magnetic body 1143 are attached to the holder 1131. (or the optical member 1132) in the third direction is set to the distance between the tilt guide portions 1141. This allows the second lower part of the holder 1131 to be larger than the first lower part. The Hall sensor 1153b is also located at a predetermined distance from the second magnetic body 1142 and the first magnetic body 1143. Therefore, the second Hall sensor 1153b can be arranged so as to be spaced apart from the second magnetic body 1. The influence of the magnetic field formed by the first magnetic material 142 and the first magnetic material 1143 is minimized, and the Hall voltage is positive. In other words, this configuration can prevent the Hall current from concentrating and becoming saturated. The range in which Hall calibration can be performed Furthermore, the temperature is also affected by the electrodes of the Hall sensor, and the The resolution of the camera lens is variable, but in the example, the Hall voltage is concentrated on the positive or negative side. This prevents the lens from being distorted, and the compensation for the lens resolution is performed in response to the lens resolution. The bottom can be easily prevented.
[0256] Also, the offset to the output (i.e., Hall voltage) of the second Hall sensor 1153b is A circuit design for compensating for the offset can also be easily implemented.
[0257] Further, according to the embodiment, the tilt guide portion 1141 is located outside the fourth holder of the holder 1131. A portion of the area relative to the surface may be located outside the fourth holder outer surface.
[0258] The tilt guide portion 1141 is formed by a base BS excluding the first protrusion PR1 and the second protrusion PR2. The base BS can be placed in the fourth seating groove 1131S4a. The length in the third direction (Z-axis direction) of the fourth seating groove 1131S4a is This configuration makes it easy to achieve miniaturization. It is possible.
[0259] The tilt guide portion 1141 has a maximum length in the third direction (Z-axis direction) that is equal to or greater than the length of the fourth seating groove 1141. The length of the third direction (Z-axis direction) of the 131S4a can be made larger than that of the 131S4a. As described above, the end of the second protrusion PR2 is in contact with the outer surface of the fourth holder and the first member 1126. That is, at least a part of the second protrusion PR2 may be located between the holder 113 and the second protrusion PR2. The holder 1131 can be positioned in the opposite direction to the third direction (Z-axis direction) from the first direction. The end of the second protrusion PR2 (the portion in contact with the second protrusion groove) is rotated in the third direction (Z-axis direction) by a predetermined amount. They can be separated by a distance.
[0260] In addition, the front surface 1131aes of the second member 1131a according to the embodiment is In particular, the front surface 1126es of the second member 1131a according to the embodiment may be spaced apart from the front surface 1126es. 31aes is a cross section of the second member 1126 from the front surface 1126es toward the third direction (Z-axis direction). Alternatively, the front surface 1131aes of the second member 1131a according to the embodiment may be located at the front surface 1131aes of the second member 1131a. The first member 1126 may be located inside the front surface 1126es of the first member 1126. The second member 1131a may have an inwardly extending and bent structure. The first member 1126 has a part located in a groove formed by the extension and bending structure. It can be placed.
[0261] With this configuration, the second member 1131a is positioned inside the second member 1126. This improves space efficiency and allows for miniaturization. Even if the second member 1131a is tilted or rotated, the second member 1131a is in contact with the first member 1126. It does not protrude outward and can be isolated from contact with surrounding elements, thereby improving reliability. It can be done.
[0262] In addition, a predetermined separation space exists between the second magnetic body 1142 and the first magnetic body 1143. That is, the second magnetic body 1142 and the first magnetic body 1143 have the same polarity and are mutually can be opposed to.
[0263] FIG. 12a is a perspective view of a first camera actuator according to an embodiment, and FIG. 12b is a perspective view of a first camera actuator according to an embodiment. 12a is a cross-sectional view seen from SS', and FIG. 12c is a cross-sectional view of the first camera actuator shown in FIG. 12b. 10 is an example diagram of the movement of data.
[0264] Referring to FIGS. 12a to 12c, in the first camera actuator according to the embodiment, Y-axis tilt is possible, i.e., OIS is realized by rotating in the first direction (X-axis direction). It is possible.
[0265] In this embodiment, the third magnet 1151c disposed at the bottom of the holder 1131 is 1152c and the mover 113c. 0 can be tilted or rotated.
[0266] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 acts on the second member 1131a and the and the first member 1126, and finally the force is transmitted between the first member 1126 and the holder 1131. Therefore, the tilt guide portion 1141 can be transmitted to the tilt guide portion 1141. The repulsive force described above may be exerted by the mover 1130 and the first housing 1120 .
[0267] The second protrusion PR2 can be supported by the first member 1126. The tilt guide portion 1141 has a second protrusion PR2 protruding toward the first member 1126. is used as the reference axis (or rotation axis), that is, the second direction (Y-axis direction) is used as the reference That is, the tilt guide portion 1141 can tilt toward the first member 1126. The protruding second protrusion PR2 is used as a reference axis (or rotation axis) and rotates in the first direction (X-axis direction). It can be rotated or tilted.
[0268] For example, the third magnet 1151c disposed in the third mounting groove and the third substrate side portion The first electromagnetic forces F1A and F1B between the third coil portion 1152c and the mover 113 OIS can be realized by rotating 0 in the X-axis direction at the first angle θ1 (X1->X1a). can.
[0269] On the other hand, the third magnet 1151c disposed in the third mounting groove and the third substrate 1151b disposed on the side of the third substrate The first electromagnetic forces F1A and F1B between the third coil portion 1152c and the mover 11 30 is rotated in the opposite direction of the X-axis by a first angle θ1 (X1 → X1b), and the OIS is It can be realized.
[0270] The first angle θ1 can be ±1° to ±3°, but is not limited to this.
[0271] The center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are aligned in a third direction. In other words, the center MC1 of the second magnetic body 1142 can be arranged side by side along the Z-axis direction. and the center MC2 of the first magnetic body 1143. A center line TL1 connecting the first magnetic body 1143 and the center MC2 of the first magnetic body 1143 extends in the third direction (Z-axis direction). may be parallel to
[0272] Then, a bisector TL2 that bisects the second protrusion PR2 and corresponds to the third direction (Z-axis direction) is The bisector TL2 may be parallel to the center line TL1. That is, the bisector TL2 may be parallel to the center line TL1. It may be a line that bisects in one direction (X-axis direction), or it may be multiple lines.
[0273] In this embodiment, the bisector TL2 is spaced apart from the center line TL1 in the first direction (X-axis direction). The bisector TL2 may be located above the center line TL1. This configuration increases the separation distance between the third coil 1152c or the third magnet 1151c. In addition, the holder can tilt more precisely in two directions. When no additional pressure is applied, the position of the holder can be kept the same.
[0274] More specifically, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are is separated from the bisector TL2 in the first direction (X-axis direction), The force (for example, repulsive force) between the magnetic bodies 1143 is in the first direction from the bisector TL2 corresponding to the optical axis. The force acts in the direction of the X axis. However, the center MC1 of the second magnetic body 1142 and the first magnetic body 1130 are in a state where momentum is generated. When the center MC2 of the body 1143 is located on the bisector TL2, the calibration progresses. The problem is that the positions of the rotation guide part and the second magnetic body 1142 are not maintained after tilting. That is, in the camera actuator according to the embodiment, the second magnetic body 1142 The center MC1 and the center MC2 of the first magnetic body 1143 are not positioned on the bisector TL2. Therefore, the positions of the tilt guide portion and the second magnetic body 1142 are maintained even after tilting or rotation. It is possible.
[0275] In another embodiment, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are , can be spaced apart in the first direction (X-axis direction).
[0276] The center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are arranged in the same plane. For example, the center MC1 of the second magnetic body 1142 may not be located on the dividing line TL2. The center MC2 of the first magnetic body 1143 may be located above the bisector TL2.
[0277] This increases the separation distance between the third coil 1152c or the third magnet 1151c. In addition, the holder can tilt more precisely in two axes. When no additional pressure is applied, the position of the holder can be kept the same.
[0278] The second magnetic body 1142 and the first magnetic body 1143 have a length in the first direction (X-axis direction) of may be different from each other.
[0279] In this embodiment, a second member 1131a is coupled to the second member 1131b and tilted together with the mover 1130. The area of the magnetic body 1142 can be made larger than the area of the first magnetic body 1143. The length of the second magnetic body 1142 in the first direction (X-axis direction) is The length of the second magnetic body 114 can be made larger than the length in the first direction (X-axis direction). 2 is the length in the second direction (Y-axis direction) of the first magnetic body 1143 in the second direction (Y-axis direction). The length of the second magnetic body 1142 can be made larger than the length of the second magnetic body 1142. The first magnetic body 1143 can be positioned within the extending imaginary line.
[0280] With this configuration, when tilting or rotating, the magnetic body on one side (for example, the second magnetic body) Even if the device is tilted, it is easy to prevent other forces from being generated by the tilt instead of the normal force. That is, even if the second magnetic body is tilted up and down together with the mover 1130, the first magnetic body There may be no force (e.g., repulsive or attractive) from 1143 to counter the tilt. This can improve driving efficiency.
[0281] FIG. 13a is a cross-sectional view seen from RR' in FIG. 12a, and FIG. 13b is a cross-sectional view of the first FIG. 1 is a diagram illustrating the movement of a camera actuator.
[0282] 13a and 13b, X-axis tilting can be performed, i.e., Y-axis tilting. The mover 1130 can implement the OIS by tilting or rotating.
[0283] In this embodiment, the first magnet 1151a and the second magnet 1151b are disposed in the holder 1131. The coils 1151a and 1151b are connected to the first coil 1152a and the second coil 1152b, respectively, through electromagnetic forces. and the tilt guide part 1141 and the mover 113 are formed based on the first direction (X-axis direction). 0 can be tilted or rotated.
[0284] Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 acts on the first member 1126 and The magnetic field is transmitted to the holder 1131 and finally arranged between the holder 1131 and the first member 1126. Therefore, the tilt guide portion 1141 can be transmitted to the tilt guide portion 1141. The repulsive force described above may be exerted by the mover 1130 and the first housing 1120 .
[0285] The 1-1 protrusion PR1a and the 1-2 protrusion PR1b are arranged in the first direction (X-axis direction). A first protrusion groove formed in the fourth seating groove 1131S4a of the holder 1131 is spaced apart from the first protrusion groove 1131S4a. In this embodiment, the tilt guide portion 1141 can be supported by the holder 113. The first protrusion PR1 protruding toward the reference axis (or the third direction) is is the rotation axis), that is, the first direction (X-axis direction) is used as the reference. can be done.
[0286] For example, the first and second magnets 1151a and 1151b and the first magnet 1151a are disposed in the first mounting groove. , a second electromagnetic coil between the first and second coil portions 1152a and 1152b arranged on the second substrate side. The forces F2A and F2B rotate the mover 1130 in the Y-axis direction at a second angle θ2 (Y1- >Y1a) to realize the OIS. The first and second magnets 1151a and 1151b are arranged on the sides of the first and second substrates. The second electromagnetic forces F2A and F2B between the two coil portions 1152a and 1152b act on the mover 1. 130 is rotated in the Y-axis direction at a second angle θ2 (Y1->Y1b) to realize the OIS. The second angle θ2 can be ±1° to ±3°. However, it is not limited to this. There is no.
[0287] Here, the second electromagnetic forces F2A, F2B are different from those shown in the figure and are directed in a third direction or The electromagnetic force is generated in three opposite directions. In this case, the coil is coupled to a fixed housing so that the magnet and The explanation will be based on the movement of the holder connected to the magnet. The force is explained based on the direction in which the magnet and holder move. For example, if the first coil When an electromagnetic force is applied in the opposite direction to the third direction (Z-axis direction), the first magnet is The holder 1131 has a side surface adjacent to the first magnet and a third direction (Z-axis direction). When the second coil receives an electromagnetic force in the third direction (Z-axis direction), The second magnet and the other side of the holder 1131 adjacent to the second magnet are held together by electromagnetic force. The holder 1131 receives a force in the opposite direction to the third direction (Z-axis direction). As shown in the figure, the holder can move in the "F2A" direction under the force. 1131 can move in the "F2B" direction due to the force. , F2B are the electromagnetic fields generated by the first and second coils and the first and second magnets, as described above. The force corresponds to the force that moves the holder.
[0288] Thus, the second actuator according to the embodiment has a drive magnet in the holder and a first Electromagnetic forces between drive coils disposed in the housing move the mover 1130 in a first direction ( By controlling the rotation in the X-axis direction or the second direction (Y-axis direction), Minimizing decentering and tilting to achieve the best optical performance As mentioned above, the "Y-axis tilt" can provide the following characteristics: "X-axis tilt" means rotating or tilting in the second direction (Y-axis direction) It means to rotate or tilt.
[0289] FIG. 14 is a diagram illustrating an assembly procedure for the first camera actuator according to the embodiment. .
[0290] Referring to FIG. 14, the method for assembling the first camera actuator according to the embodiment includes the steps of: a step of coupling the first to third coils and the first substrate part to the housing; The first mover 1130, the tilt guide portion 1141, the first member 1126 and the second member 113 1a, and the combined mover 1130, tilt guide portion 1141, and first member inserting the first member 1126 and the second member 1131a into the first housing 1120; obtain.
[0291] In the embodiment, after the step of coupling the first to third coils and the first substrate part to the first housing, Then, the combined mover 1130, the tilt guide portion 1141, the first member 1126 and the second member 1127 are connected to each other. A step of inserting the member 1131a into the first housing 1120 can be performed. The first coil to the third coil and the first substrate part are connected to the first housing. This minimizes the influence of foreign matter on the optical components and holder. The driving accuracy of the actuator can be improved.
[0292] Furthermore, the coupled mover 1130, the tilt guide portion 1141, the first member 1126, and The second member 1131a is attached to the first housing 1120 from the side in the third direction (Z-axis direction), for example. ), so compared to inserting from the top and bottom, the combined mover 113 0, the impact applied to the tilt guide portion 1141, the first member 1126 and the second member 1131a is minimized. It can be miniaturized.
[0293] In addition, the center portion of the first member 1126 (corresponding to the tilt guide portion or overlapping in the third direction) , or between the first through hole and the second through hole, corresponding to the "connecting member") in the third direction ( the length ka in the third direction (Z-axis direction) of the member base portion of the second member 1131a, The sum of the length kb at the center of the first member 1126 and the length kb at the upper and lower frames (upper part The length kc in the third direction (Z-axis direction) of the upper and lower members (corresponding to the upper and lower members) can be less than or equal to such a length kc. As described above, even if the second member 1131a tilts or rotates, the first member It cannot protrude beyond the outer surface of 1126.
[0294] Also, the first member 1126 is coupled to the first housing 1120 as described above to form a single For example, one housing may be a first member, i.e., a first-second housing. The first housing 1120 may comprise a ring and a first housing 1120.
[0295] FIG. 15 is a perspective view of the second camera actuator according to the embodiment, and FIG. 16 is a perspective view of the second camera actuator according to the embodiment. 17 is an exploded perspective view of the second camera actuator, and FIG. 17 is a cross section seen from DD′ in FIG. 15. 18 is a cross-sectional view taken along the line EE' in FIG. 15.
[0296] Referring to FIGS. 15 to 18, the second camera actuator 1200 according to the embodiment includes: A lens unit 1220, a second housing 1230, a second driving unit 1250, a base unit (not shown) ), and a second substrate portion 1270. Further, the second camera actuator 1200 The second shielding can (not shown), the elastic part (not shown), and the joining member (not shown) are Further, the second camera actuator 1200 according to the embodiment may further include It may further include a sensor IS.
[0297] A second shielding can (not shown) is provided to cover a region (e.g., , outermost), and the components (lens unit 1220, second housing 1230, Elastic portion (not shown), second drive portion 1250, base portion (not shown), second substrate portion 1270 , and the image sensor IS).
[0298] Such a second shielding can (not shown) blocks or reduces externally generated electromagnetic waves. Therefore, the occurrence of malfunction in the second driving unit 1250 can be reduced.
[0299] The lens portion 1220 may be located within a second shielding can (not shown). can move in the third direction (Z-axis direction), so the AF function described above can be performed. It can be done.
[0300] Specifically, the lens unit 1220 includes a lens assembly 1221 and a bobbin 1222. It is possible.
[0301] The lens assembly 1221 may include at least one lens. There may be a plurality of assemblies 1221, but the following description will be given with reference to one assembly.
[0302] The lens assembly 1221 is coupled to a bobbin 1222. The electromagnetic force generated by the fourth magnet 1252a and the fifth magnet 1252b It can move in the third direction (Z-axis direction).
[0303] The bobbin 1222 may include an open area that encases the lens assembly 1221. The bottle 1222 can be coupled to the lens assembly 1221 in a variety of ways. The bottle 1222 may include a groove in the side through which the fourth magnet 1252a and the fifth magnet 1252b are inserted. The grooves can be bonded to the net 1252b. A bonding material or the like can be applied to the grooves.
[0304] The bobbin 1222 may also be coupled with elastic portions (not shown) at its upper and rear ends. As a result, the bobbin 1222 moves in the third direction (Z-axis direction), but the elastic portion (not shown) That is, the position of the bobbin 1222 is maintained, and the bobbin 1222 is supported in the third direction (Z-axis direction). The elastic portion (not shown) may be a leaf spring.
[0305] The second housing 1230 is disposed between the lens unit 1220 and a second shielding can (not shown). The second housing 1230 can be arranged so as to surround the lens portion 1220. It can be arranged.
[0306] The second housing 1230 may have a hole formed in its side. The hole can be used for the bobbin 1 described above. 222 groove.
[0307] The fourth magnet 1252a may be positioned to face the fourth coil 1251a. The fifth magnet 1252b may be positioned to face the fifth coil 1251b. do.
[0308] The elastic portion (not shown) includes a first elastic member (not shown) and a second elastic member (not shown). A first elastic member (not shown) may be coupled to the top surface of the bobbin 1222. A member (not shown) may be coupled to the underside of the bobbin 1222. Also, a first elastic member (not shown) may be coupled to the underside of the bobbin 1222. The first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring as described above. The elastic member (not shown) and the second elastic member (not shown) are elastic against the movement of the bobbin 1222. It can provide sex.
[0309] The second driving unit 1250 generates a driving force that moves the lens unit 1220 in the third direction (Z-axis direction). (F3, F4). Such a second driving unit 1250 can provide driving coils 1251 and a drive magnet 1252.
[0310] The electromagnetic force formed between the drive coil 1251 and the drive magnet 1252 The lens portion 1220 can move in the third direction (Z-axis direction).
[0311] The drive coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b are connected to the second housing 1230. The fourth coil 1251a and the fifth coil 1251b can be placed in holes formed in the side of the coil. The coil 1251b may be electrically connected to the second substrate unit 1270. The fifth coil 1251a and the fifth coil 1251b are supplied with current and the like through the second substrate part 1270. You can receive it.
[0312] The drive magnet 1252 includes a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be attached to the bobbin 122. The fourth coil 1251a and the fifth coil 1251b may be disposed in the above-mentioned grooves. It can be positioned so that
[0313] A base portion (not shown) may be located between the lens portion 1220 and the image sensor IS. The base portion (not shown) can be fixed with components such as a filter. (not shown) may be arranged to surround the image sensor IS. As a result, the image sensor IS is free from foreign matter and the like, and the reliability of the element can be improved.
[0314] The second camera actuator may be a zoom actuator or an AF (Autofocus) actuator. For example, the second camera actuator can be The lens supports one or more lenses and moves the lenses in response to a control signal from a predetermined control unit. , autofocusing or zooming functions can be performed.
[0315] And the second camera actuator can be a fixed zoom or a continuous zoom. , a second camera actuator can provide movement of the lens assembly 1221. do.
[0316] Additionally, the second camera actuator may comprise a plurality of lens assemblies. For example, the second camera actuator may include a first lens assembly (not shown), a second lens assembly (not shown), and a a third lens assembly (not shown), a third lens assembly (not shown), and a guide pin (not shown). In this case, at least one of the above-mentioned items may be arranged. As a result, the second camera actuator can achieve high-speed zooming through the drive unit. For example, a first lens assembly (not shown) and a second lens The assembly (not shown) is a moving lens that moves through a drive and guide pin (not shown). A third lens assembly (not shown) may be a fixed lens. For example, the third lens assembly (as shown in the figure) may be, but is not limited to, The first one (not shown) can perform the function of a condenser, focusing light at a specific position. The lens assemblies (not shown) are converged by a third lens assembly (not shown), which is a condenser. To perform the function of a variator, which refocuses the image elsewhere. In the first lens assembly (not shown), the distance to the subject or the image distance The first lens assembly ( (not shown) can play an important role in changing the focal length or magnification of the optical system. The image point formed by the first lens assembly (not shown), which is a magnification variable, varies slightly depending on the position. This allows the second lens assembly (not shown) to focus the image formed by the magnification variable element. For example, a second lens assembly (not shown) can be used to perform position compensation for the image. The first lens assembly (not shown) is a variable magnification element, and the image point is converted into an actual image. The function of the compensator is to accurately focus the image at the position of the image sensor. It is possible to perform Noh.
[0317] The image sensor IS may be located inside or outside the second camera actuator. In the illustrated embodiment, the image sensor IS is located inside the second camera actuator. The image sensor IS receives light and converts it into an electrical signal. In addition, the image sensor IS is configured with multiple pixels in an array. The image sensor IS can be positioned on the optical axis.
[0318] FIG. 19 is a perspective view of a camera module according to another embodiment, and FIG. 20a is a perspective view of the camera module of FIG. 20b is a perspective view of the camera module in FIG. 20, with some components omitted. FIG.
[0319] Referring to FIGS. 19, 20a, and 20b, a camera module 10 according to another embodiment of the present invention is shown. The camera may include one or more camera actuators. The camera module 1000A includes a second camera actuator 100 and a first camera actuator The camera module according to the embodiment may include the second camera actuator 300. The camera actuator 100 and the first camera actuator 300 are protected by a case 100c. Here, the case 100c may correspond to the cover described above. The camera module may be used interchangeably with the terms "camera apparatus" and "camera device."
[0320] The second camera actuator 100 may be electrically connected to the first substrate 160. The lens actuator 100 supports one or more lenses and receives a control signal from a predetermined control unit. Based on the signal, the lens is moved in the direction of the optical axis to perform autofocusing or zooming. It can be done.
[0321] In addition, the first camera actuator 300 is electrically connected to a second substrate (not shown). The second substrate may be electrically connected to the first substrate 160. The actuator 300 is an OIS (Optical Image Stabilizer) In this case, the light incident from the outside is incident on the first camera actuator. The light incident on the first camera actuator 300 can be incident on the second camera actuator 300. The light may be incident on the second camera actuator 100 after the path of the light is changed. Light passing through the camera actuator 100 can be incident on an optical sensor (not shown).
[0322] The second camera actuator 100, which is a zoom or AF actuator, will be described below. First, the OIS actuator, which is the first camera actuator 300, will be described. In this embodiment, the second camera actuator 100 is The same applies to the first camera actuator. In this embodiment, the first camera actuator 300 is the second camera actuator described above. The above description can be applied in the same way.
[0323] <Second camera actuator 100> The second camera actuator 100 will now be described. FIG. 21 is a perspective view of the second camera actuator 100 according to the embodiment, and FIG. 22 is a perspective view of the second camera actuator 100 according to the embodiment. 1 is a perspective view of a camera actuator according to the embodiment shown in FIG. 1, with some components omitted. 23 shows a partial structure of the camera actuator according to the embodiment shown in FIG. FIG.
[0324] Referring to FIG. 21, the second camera actuator 100 according to the embodiment includes a base 20 and , the first substrate 160, the fourth driving unit 142, and the third lens assembly disposed on the outside of the base 20. assembly 130.
[0325] FIG. 22 is a perspective view of FIG. 21 in which the base 20 and the first substrate 160 are omitted. 2, the second camera actuator 100 according to the embodiment includes a first guide portion 210 , the second guide portion 220, the first lens assembly 110, and the second lens assembly 12 0, a third driving unit 141, and a fourth driving unit 142.
[0326] The third driving unit 141 and the fourth driving unit 142 may include a coil or a magnet.
[0327] For example, if the third driving unit 141 and the fourth driving unit 142 include coils, The driving part 141 may include a first coil part 141b and a third yoke 141a. The fourth driving section 142 may include a second coil section 142b and a fourth yoke 142a.
[0328] Alternatively, the third driving unit 141 and the fourth driving unit 142 may include magnets. However, the explanation will be based on the coil.
[0329] In the xyz axis direction shown in FIG. 23, as described above, the z axis is the optical axis. The x-axis is the plane of the paper (xz) or a direction parallel to it. The y-axis may refer to the direction perpendicular to the plane of the paper, while the z-axis may refer to the direction perpendicular to the plane of the paper.
[0330] Referring to FIG. 23, the second camera actuator 100 according to the embodiment includes a base 20 and , a first guide portion 210, a second guide portion 220, a first lens assembly 110, and a second The base may include a lens assembly 120 and a third lens assembly 130. 20 may correspond to the second housing described above. The third lens assembly 130 is also the lens assembly of the second camera actuator described above. The first guide portion 210 and the second guide portion 220 may correspond to the above-mentioned guide pins. The third driving unit 141 and the fourth driving unit 142 can correspond to the fourth coil and and the fifth coil, or the fourth magnet and the fifth magnet.
[0331] For example, the second camera actuator 100 according to the embodiment includes a base 20 and a A first guide portion 210 is disposed on one side of the base 20, and a second guide portion 211 is disposed on the other side of the base 20. a guide portion 220, a first lens assembly 110 corresponding to the first guide portion 210; a second lens assembly 120 corresponding to the second guide portion 220; 210 and the first lens assembly 110. 25a), and between the second guide portion 220 and the second lens assembly 120 and a second ball bearing (not shown) disposed in the first bearing.
[0332] In addition, the embodiment may include a third lens disposed in front of the first lens assembly 110 in the optical axis direction. The lens assembly 130 may include a lens assembly 130.
[0333] Specific features of the camera module according to the embodiment will be described in detail below with reference to the drawings.
[0334] <Guide section> 22 and 23, an embodiment may be implemented in which the first side wall of the base 20 is adjacent to the first side wall. and a first guide portion 210 disposed adjacent to the second side wall of the base 20. The first and second side walls of the base 20 may include a second guide portion 220 disposed on the first side wall and the second side wall. A storage space is formed inside the housing, and the housing members are arranged facing each other across the storage space. A first guide is provided in the receiving space formed by the first and second side walls of the base 20. Specifically, the first guide part 210 may be a front guide part. The base 20 may be provided with a first side wall 22a, a second side wall 22b, and a third side wall 22c. In addition, the second guide portion 220 is disposed in the receiving space so as to contact the second side wall of the base 20. The inner surface of the casing may be disposed adjacent to the inner surface of the casing.
[0335] The first guide portion 210 is a guide portion for connecting the first lens assembly 110 and the base 20. It may be disposed between the first sidewall.
[0336] The second guide portion 220 is provided between the second lens assembly 120 and the base 20. The first side wall and the second side wall of the base may be disposed between the first side wall and the second side wall. The arrangement can be as follows.
[0337] According to the embodiment, the first guide portion 210 and the second guide portion 220 are precisely controlled by numerical control in the base. 220 is coupled to the lens assembly, the lens assembly is driven, and the friction torque is generated. By reducing friction, the driving force is improved when zooming. This provides technical effects such as reduced power consumption and improved control characteristics.
[0338] Therefore, according to the embodiment, the friction torque is minimized during zooming. However, lens decenter and lens tilt, This prevents the central axes of the lens group and the image sensor from being misaligned, improving image quality and This provides multiple technical effects that can significantly improve resolution.
[0339] In the prior art, when a guide rail is arranged on the base itself, the guide rail is aligned along the injection direction. This creates a gradient, making it difficult to control the dimensions, and if injection is not performed properly, the friction torque This caused a technical problem in that the torque increased, reducing the driving force.
[0340] On the other hand, according to the embodiment, the guide rail is not provided on the base itself, but is provided separately from the base 20. The first guide part 210 and the second guide part 220 are separately formed and assembled. This has the special technical effect of preventing gradients from occurring along the injection direction. is played.
[0341] The base 20 can be ejected in the Z-axis direction. When the rail is inserted into the body, a gradient occurs as the rail is ejected in the Z-axis direction, and the rail's straightness is reduced. There was a problem with the lines bending.
[0342] According to the embodiment, the first guide portion 210 and the second guide portion 220 are injected separately from the base 20. This significantly reduces the occurrence of gradients compared to conventional techniques, and precision injection is possible. This provides a special technical effect of preventing the occurrence of gradients during injection.
[0343] In this embodiment, the first guide portion 210 and the second guide portion 220 are projected along the X axis. The length of the first guide portion 210 and the base 20 may be shorter than that of the base 20. When the rails 212 and 222 are arranged in the guide section 220, the occurrence of a gradient during injection This has the technical effect of minimizing the risk of the straight rails bending.
[0344] FIG. 24 shows the first guide portion 210 and the second guide portion 211 in the camera actuator according to the embodiment. FIG. 2 is an enlarged perspective view of the dome portion 220.
[0345] Referring to FIG. 24, in the embodiment, the first guide portion 210 may include a single or multiple first guide portions. The second guide portion 220 may include a single or multiple second rails. 222.
[0346] For example, the first rail 212 of the first guide portion 210 is a 1-1 rail 212a. The first guide portion 210 may include the first-first rail 212b. A first support portion 213 may be included between the first rail 212a and the first-second rail 212b.
[0347] According to an embodiment, by providing two rails per lens assembly, either Even if one rail is bent, the other rail ensures accurate movement of the lens assembly. This provides a technical effect that can be achieved.
[0348] According to the embodiment, two rails are provided per lens assembly, so that Even if there is a problem with the friction of the ball, which will be explained later, The other rail facilitates the rolling drive, which allows the lens assembly to move smoothly. This provides the technical effect of ensuring the driving force required for the
[0349] The first rail 212 may be connected from one side to the other side of the first guide part 210 .
[0350] The camera actuator and the camera module including the same according to the embodiment may be configured to: The problem of lens decentering and tilt occurring This solves the problem of alignment and spacing between multiple lens groups. Prevents changes in the angle of view and out-of-focus situations, significantly improving image quality and resolution. This results in a technical effect that improves the image quality.
[0351] For example, according to the embodiment, the first guide portion 210 is connected to the first rail 212a and the second rail 212b. By providing the first rail 212a and the second rail 212b, 12b guides the first lens assembly 110, thereby improving alignment accuracy. This provides a technical effect.
[0352] According to an embodiment, two rails are provided per lens assembly, which allows for The distance between the balls can be increased, which improves driving force. This prevents magnetic interference and prevents tilt when the lens assembly is stationary or moving. This provides a technical effect.
[0353] The first guide portion 210 extends in a lateral direction perpendicular to the direction in which the first rail 212 extends. The guide projection 215 may extend from the guide member 210.
[0354] The first guide protrusion 215 may include a first protrusion 214p. 14p can include a first protrusion 214p1 and a first second protrusion 214p2. .
[0355] Referring to FIG. 24, in the embodiment, the second guide portion 220 may be a single or multiple A second rail 222 may be included.
[0356] For example, the second rail 222 of the second guide portion 220 is a 2-1 rail 222a. The second guide portion 220 may include a second rail 222b. A second support (not shown) may be included between the second rail 222a and the second-second rail 222b. do.
[0357] The second rail 222 may be connected from one side of the second guide part 220 to the batt.
[0358] In addition, the second guide portion 220 is configured to extend in a direction perpendicular to the direction in which the second rail 222 extends. The guide protrusion 225 may extend in the direction of the guide rod 221 .
[0359] On the second guide protrusion 225, a 2-1 protrusion 224p1 and a 2-2 protrusion 224p2 are provided. p2.
[0360] The first-1 protrusion 214p1 and the first-2 protrusion 214p2 of the first guide portion 210 , the 2-1 protrusion 224p1 and the 2-2 protrusion 224p2 of the second guide portion 220, may be coupled to a third lens assembly 130, which will be described later.
[0361] According to the embodiment, the first guide portion 210 is connected to the first rail 212a and the second rail 212b. 212b, the first-first rail 212a and the first-second rail 212b A technique for improving alignment accuracy by guiding the first lens assembly 110. The technical effect is achieved.
[0362] According to the embodiment, the second guide portion 220 is connected to the 2-1 rail 222a and the 2-2 rail 222b. By providing the 2-1 rail 222a and the 2-2 rail 222b, b guides the second lens assembly 120, thereby improving the accuracy of alignment. This provides a technical effect.
[0363] In addition, by providing two rails per lens assembly, it is possible to This provides the technical effect of ensuring accuracy even if one rail bends, thanks to the other rail.
[0364] According to an embodiment, two rails are provided per lens assembly, which allows for This allows for a wider spacing between the balls, which improves driving force. This prevents magnetic field interference and prevents tilt when the lens assembly is stationary or moving. This provides a technical effect that can be achieved.
[0365] According to the embodiment, two rails are provided per lens assembly, so that Even if there is a problem with the friction of the ball, which will be explained later, A technology that ensures driving force by smoothly promoting rolling drive on the other rail section. This has a beneficial effect.
[0366] Furthermore, according to the embodiment, the guide rails are not provided on the base itself, but are formed separately from the base 20. The first guide portion 210 and the second guide portion 220 are assembled together, so that the base The integrated structure of the nozzle and guide rail has a special technique that prevents the occurrence of gradients along the injection direction. The technical effect is achieved.
[0367] In the prior art, when a guide rail is arranged on the base itself, the guide rail is aligned along the injection direction. This creates a gradient, making it difficult to control the dimensions, and if injection is not performed properly, the friction torque This caused a technical problem of increased torque and reduced driving force.
[0368] Next, FIG. 25a shows the first level in the camera actuator according to the embodiment shown in FIG. 25b is a perspective view of the first lens assembly shown in FIG. 25a. FIG. 2 is a perspective view of the device with some components removed.
[0369] Referring to FIG. 24, the embodiment is a second guide portion 210. The first lens assembly 110 and the second lens assembly 220 are arranged to move along the second guide portion 220. Assembly 120.
[0370] Also, referring to FIG. 25a, the first lens assembly 110 includes a first lens 113. a first lens barrel 112a in which the first driving unit 116 is disposed; The first lens barrel 112a and the first drive unit housing 112b may include: The first housing may be a barrel or lens barrel-shaped. The drive unit 116 may be, but is not limited to, a magnet drive unit. Thus, the coil can also be arranged.
[0371] The second lens assembly 120 also includes a second lens assembly 121 on which a second lens (not shown) is disposed. A barrel (not shown) and a second drive unit housing (not shown) in which the second drive unit (not shown) is disposed. The second lens barrel (not shown) and the second drive housing (not shown) may include a second The second housing may be a housing, and the second housing may be in the shape of a barrel or a lens barrel. may be, but is not limited to, a magnet drive unit, and in some cases may be a coil In this case, the second lens assembly 120 is substantially the same as the first lens. The lens assembly 110 may have the same structure as the lens assembly 110, and therefore a detailed description thereof will be omitted. I'll omit it.
[0372] The first driving unit 116 corresponds to the two first rails 212, and the second driving unit Two second rails 222 may be accommodated.
[0373] An embodiment may utilize a single or multiple balls to drive or move the lens assembly. For example, in the embodiment, the first guide portion 210 and the first lens assembly 1 10, and the first ball bearing 117 disposed between the second guide portion 220 and the A second ball bearing (not shown) may be included that is disposed between the two lens assemblies 120 .
[0374] For example, in the embodiment, the first ball bearing 117 is mounted on the upper side of the first drive unit housing 112b. a single or multiple first-first ball bearings 117a disposed in the first drive unit housing; and a single or multiple first and second ball bearings 117b disposed below 112b. .
[0375] In the embodiment, the first ball bearing 117 is a ball bearing 117a. , moves along the first rail 212a, which is one of the first rails 212, The first-second ball bearing 117b of the first ball bearing 117 is located in the first rail 212. The other of these is the first-second rail 212b.
[0376] The camera actuator and the camera module including the same according to the embodiment may be configured to: By solving the problems of lens decentering and tilt, The alignment between the lens groups is now better, and the angle of view is not changed or the focus is not adjusted. This prevents the occurrence of out-of-focus images and significantly improves image quality and resolution. Play.
[0377] For example, according to the embodiment, the first guide portion includes a 1-1 rail and a 1-2 rail. By providing the first lens assembly 110, the first-1 rail and the first-2 rail are guided. By doing so, the first lens assembly 110 moves in parallel with the second lens assembly 12. This provides a technical effect that improves the accuracy of aligning the zero with the optical axis.
[0378] Referring to FIG. 25b, in an embodiment, the first lens assembly 110 includes The second lens may include a first assembly groove 112b1 in which a first ball bearing 117 is disposed. The ball assembly 120 includes a second assembly groove (not shown) in which the second ball is disposed. obtain.
[0379] The first lens assembly 110 may have a plurality of first assembly grooves 112b1. At this time, two of the plurality of first assembly grooves 112b1 are aligned with respect to the optical axis direction. The distance between the first assembly grooves 112b1 is set to be less than the thickness of the first lens barrel 112a. can also be made longer.
[0380] In an embodiment, the first assembly groove 112b1 of the first lens assembly 110 The second assembly groove of the second lens assembly 120 may be V-shaped. (not shown) may be V-shaped. The groove 112b1 may be V-shaped or U-shaped or may be connected to the first ball bearing 117 at two or three points. The second lens assembly 120 may have a shape that contacts the first lens element. The groove (not shown) may be V-shaped, U-shaped, or may be in contact with the first ball bearing 117 at two or three points. These various shapes make it easy to eliminate deviations due to tolerances. obtain.
[0381] Next, FIG. 26 is an example diagram of driving the camera actuator according to the embodiment.
[0382] Referring to FIG. 26, in the camera actuator according to the embodiment, the magnet driving unit Interaction between a first driving unit 116 and a first coil unit 141b, which generates an electromagnetic force DEM I will explain the following.
[0383] As shown in FIG. 26, in the camera actuator according to the embodiment, the first driving unit 116 The magnetization method of the magnet may be a vertical magnetization method. The north pole 116N and south pole 116S of the coil are both attached so as to face the first coil portion 141b. Therefore, a current flows from the first coil portion 141b in the y-axis direction perpendicular to the paper surface. The north pole 116N and south pole 116S of the magnet are arranged to correspond to the respective regions. In this embodiment, the first driving unit 116 is the fourth magnet or The second driving unit 126 corresponds to either the fourth magnet or the fifth magnet. In this embodiment, the first drive unit to the fourth drive unit The driving unit corresponds to the magnet and coil of the second driving unit described above.
[0384] Referring to FIG. 26, in this embodiment, the N pole 116N of the first driving unit 116 is rotated in the direction opposite to the x-axis. A magnetic force DM is applied in the opposite direction (the direction of the magnetic force can be positive or negative relative to the direction shown). ), a current DE flows in the y-axis direction from the region of the first coil portion 141b corresponding to the N pole 116N. Then, the electromagnetic force DEM acts in the z-axis direction according to Fleming's left-hand rule.
[0385] In the embodiment, a magnetic force DM is applied in the x-axis direction from the south pole 116S of the first driving unit 116. Therefore, current flows from the first coil portion 141b corresponding to the south pole 116S in the opposite direction to the y-axis perpendicular to the paper surface. When the flow DE flows, an electromagnetic force DEM acts in the z-axis direction according to Fleming's left-hand rule. (The direction of the electromagnetic force can be either positive or negative relative to the direction shown.)
[0386] At this time, the third driving unit 141 including the first coil unit 141b is in a fixed state. The first lens assembly 110, which is a mover in which the first driving unit 116 is disposed, moves in the direction of the current. The rail of the first guide part 210 is moved in a direction parallel to the z-axis direction by the electromagnetic force DEM according to the direction of the The electromagnetic force DEM is generated by a current DE applied to the first coil portion 141b. can be controlled proportionally to
[0387] Similarly, in the camera actuator according to the embodiment, a second magnet (not shown) and a An electromagnetic force DEM is generated between the two coil sections 142b, and the second lens assembly 120 moves in the optical axis direction. The second guide portion 220 can move horizontally along the rails.
[0388] <First board> FIG. 27a is an oblique view of the first substrate from which the first coil portion according to the first embodiment has been removed, viewed from a first direction. 27b is a perspective view of the first substrate from which the first coil portion according to the first embodiment has been removed, viewed in a second direction. FIG. 27c is a perspective view of the first substrate on which the first coil portion according to the first embodiment is arranged. 28a is a cross-sectional view of the first substrate according to the first embodiment, and FIG. 28b is a perspective view of the first substrate according to the first embodiment. FIG. 28a is a plan view of the first substrate from which the first coil portion has been removed according to the first embodiment, and FIG. 28b is a plan view of the first substrate from which the first coil portion has been removed according to the first embodiment. FIG. 2 is a plan view of a first substrate on which a first coil portion is arranged according to an embodiment.
[0389] The first substrate according to the first embodiment will be described below with reference to FIGS. 27a to 28c. The first substrate may correspond to the second substrate portion described above.
[0390] Before describing the first substrate, let us consider the lens assemblies used to realize AF or Zoom. is driven by the electromagnetic force between the magnet and the coil, but the position information of the lens assembly is To obtain this, a position sensor can be placed inside the winding of the coil. The position detection sensor may be a magnetic sensor that can detect a change in magnetic force. The position detection sensor may be, but is not limited to, a Hall sensor. In the following description, it is assumed that the position detecting sensor is a Hall sensor.
[0391] The Hall sensor is disposed inside the winding of the coil, and the inside of the winding of the coil is The Hall sensor detects changes in the magnetic flux of a magnet located in the lens assembly. The Hall sensor detects this, and thus position information of the lens assembly can be obtained.
[0392] However, conventionally, the driver IC and hall sensor that control the movement of the lens assembly In this case, the Hall sensors were mounted on separate boards. By measuring the Hall resistance of the Hall sensor in the state where the Hall sensor is mounted, However, recently, the camera module has become slimmer and more restricted. In order to achieve high accuracy of control, the driver IC and hall sensor are mounted on one board. The Hall sensor mounted on the board is connected to the driver IC.
[0393] At this time, a number of pads are formed on the substrate, and all of the pads are connected to the driver. The Hall sensor is connected to the driver IC. It is only connected to the Hall sensor and is not directly connected to the Hall sensor.
[0394] Here, the Hall sensor is SMT (Surface Mount Technology) The Hall sensor is mounted on the first substrate 160 through a In the SMT process, short circuit defects occur in about 3% to 4% of cases. In this case, there is no pad connected to the Hall sensor, so the Hall sensor The problem is that the mounting condition of the Hall sensor cannot be tested. This can be confirmed by measuring the resistance. The test must be carried out through the pads connected to the driver IC. The pad is not directly connected to the Hall sensor, but is connected to the Hall sensor via a driver IC. The Hall sensor is connected to the sensor, so direct testing of the Hall sensor is not possible. There is a problem.
[0395] Therefore, in the embodiment, a test circuit directly connected to the Hall sensor is provided on the first substrate 160. A test pad is formed to enable testing of the mounting state of the Hall sensor.
[0396] The first substrate 160 is connected to a predetermined power supply unit (not shown) and is connected to the third driving unit 141 and the fourth driving unit 142. Specifically, the first substrate 160 can supply power to the third drive The first substrate 160 may include a first coil portion 141b of the movable portion 141. The first substrate 160 can supply power to the fourth drive unit 141b. The first substrate 160 may include a second coil portion 142b. The first substrate 160 may be a rigid printed circuit board. (Rigid PCB), Flexible PCB, Rigid-Flexible Printing Wiring patterns that can be electrically connected, such as circuit boards (rigid flexible PCBs) The device may include a circuit board having a plurality of lines.
[0397] The first substrate 160 includes a first substrate region 160a, a second substrate region 160b, and a third substrate region 160c. Including 160c.
[0398] The first substrate region 160a may be disposed outside the first sidewall of the base 20. The substrate region 160b may be disposed outside the second sidewall of the base 20. Also, the third substrate region 160c may connect the first substrate region 160a and the second substrate region 160b. The three substrate regions 160c may be located outside the bottom of the base 20.
[0399] A driver IC 161 may be disposed on one surface of the first substrate region 160a. 61 receives sensing information acquired from a gyro sensor (not shown), and The magnitude of the current or voltage supplied to the first coil portion 141b is controlled using the information. The driver IC 161 can also change the zoom ratio or the format corresponding to the zoom ratio. The magnitude of the current or voltage supplied to the first coil portion 141b is determined based on the position information of the nozzle. The driver IC 161 can also control the The second coil unit 142b receives the acquired sensing information and uses the received sensing information to The magnitude of the current or voltage supplied to the driver IC 161 can be controlled. The second coil is operated based on the zoom magnification or the focus position information corresponding to the zoom magnification. The magnitude of the current or voltage supplied to the coil portion 142b can be controlled.
[0400] In the first substrate area 160a, electronic components 162 except for a driver IC 161 are arranged. The electronic component 162 may be, but is not limited to, a capacitor. For example, the electronic component 162 may be the first coil portion 141b or the second coil portion 142. a memory that stores control information for controlling the magnitude of the current or voltage supplied to b. It is possible.
[0401] In the drawing, the driver IC 161 and the electronic components 162 are mounted on the first substrate 160. However, the present invention is not limited to this. For example, The IC 161 and the electronic components 162 are disposed in the second substrate area 160b of the first substrate 160. For example, either the driver IC 161 or the electronic component 162 can be used. One is disposed in the first substrate region 160a of the first substrate 160, and the other is disposed in the second substrate region 160b of the first substrate 160. 2 can also be disposed on substrate region 160b.
[0402] The first substrate area 160a of the first substrate 160 includes a first coil unit 1 of the third driving unit 141. 41b is placed.
[0403] In addition, a first hall sensor 71 may be disposed in the inner area of the first coil portion 141b. At this time, in the embodiment, a plurality of first holes are formed in the inner region of the first coil portion 141b. For example, a coil sensor may be disposed in the inner region of the first coil portion 141b. A first hall sensor 71a and a second hall sensor 71b are arranged spaced apart from each other. That is, as the zoom ratio of camera modules has increased recently, The stroke of the lens assembly is increased, so only one Hall sensor is used. Therefore, it may be difficult to accurately sense the position of the lens assembly. In this case, multiple sensors are used for accurate position sensing within the stroke range of the lens assembly. However, the embodiment is not limited to this. For example, The first hall sensor 71 may be implemented as a single sensor, or alternatively, as three or more sensors. In the following description, the first hall sensor 71 is referred to as the 1-1 hall sensor 71a and The explanation will be given assuming that the first and second hall sensors 71b are used.
[0404] Meanwhile, the first substrate area 160a includes a first test piece connected to the first Hall sensor 71. The first test pad 163 may be composed of a plurality of first test pads. For example, the number of first test pads 163 is determined by the number of first Hall sensors 71. That is, in the first substrate region 160a, two Hall sensors are provided corresponding to one Hall sensor. For example, the first Hall sensor 71 may be a Hall sensor No. 1-1. The first test pad includes a sensor 71a and a first-second Hall sensor 71b. The board 163 may include four first test pads.
[0405] The four first test pads 163 are located in the first substrate area 160a of the first substrate 160. In one surface, the first Hall sensor 71 may be disposed on the outside. The first test pad 163 is located at a position spaced apart from the first hall sensor 71 by a certain distance. The first hall sensor 71 may be disposed so as to surround the outside thereof.
[0406] Preferably, the four first test pads 163 are arranged on one surface of the first substrate area 160a. For example, the first coil portion 141b may be disposed in a region corresponding to the first coil portion 141b. The first test pad 163 is located on one surface of the first substrate area 160a and is connected to the first coil portion. 141b. Preferably, the four first test pads 163 is arranged to overlap with the direction perpendicular to the optical axis (for example, the x-axis direction in FIG. 26). It is possible.
[0407] Therefore, at least a part of one surface of the first coil portion 141b is connected to the four first coil portions. 1 test pad 163, respectively. This will be explained later. I will explain in detail.
[0408] That is, in order to test the mounting state of the first Hall sensor 71, On the substrate 160, the four first test pads 163 must be exposed to the outside. After the test of the first Hall sensor 71 is completed, the first test pad 1 The exposed portion of the first test pad 63 must be covered with a protective material. If the lead 163 is exposed to the outside and comes into contact with other components, a short circuit may occur. This can lead to reliability issues.
[0409] At this time, in the embodiment, the first coil portion 14 is placed on the first test pad 163. 1b is disposed on the exposed portion of the first test pad 163. is covered by the first coil portion 141b, and therefore, This prevents the first test pad 163 from coming into contact with other components. The first coil portion 141b is disposed so as to enclose a coil pattern and the coil pattern. The first coil portion 141b is configured to include a protective member (or an insulating member) that is and the first test pad 163. can.
[0410] In addition, the second substrate area 160b of the first substrate 160 is provided with a second coil of the fourth driving unit 142. A loop portion 142b is arranged.
[0411] In addition, a second Hall sensor 72 may be disposed in the inner region of the second coil portion 142b. At this time, in the embodiment, a plurality of second holes are formed in the inner region of the second coil portion 142b. For example, a coil sensor may be disposed in the inner region of the second coil portion 142b. A second-first hall sensor 72a and a second-second hall sensor 72b are arranged spaced apart from each other. It can be done.
[0412] Meanwhile, the second substrate area 160b includes a second substrate connected to the second Hall sensor 72. The second test pad 164 may be configured in plural. For example, the number of second test pads 164 is determined by the number of second Hall sensors 72. That is, in the second substrate region 160b, two Hall sensors are provided corresponding to one Hall sensor. A second test pad may be placed on the second Hall sensor 72. For example, the second Hall sensor 72 may be placed on the second Hall sensor 72. and the second test sensor 72a and the second test sensor 72b. Pads 164 may include four second test pads.
[0413] The four second test pads 164 are located in the second substrate area 160b of the first substrate 160. In one side, the second Hall sensor 72 may be disposed on the outside. The second test pad 164 is located at a predetermined distance from the second Hall sensor 72. , may be disposed surrounding the outside of the second Hall sensor 72.
[0414] Preferably, the four second test pads 164 are arranged on one surface of the second substrate area 160b. For example, the first coil 142b may be arranged in a region corresponding to the second coil 142b. The second test pad 164 is located on one side of the second substrate area 160b, and is connected to the second coil portion. Preferably, the four second test pads 142b are arranged to overlap with each other. 164 is arranged to overlap with the direction perpendicular to the optical axis (for example, the x-axis direction in FIG. 26). That is, one surface of the second substrate region 160b may be formed outside the second sidewall of the base 20. The second test pad 164 may be located on the surface facing the side of the base 2. 0, and is arranged to overlap with the second coil portion 142b. It can be done.
[0415] Therefore, at least a part of one surface of the second coil portion 142b is connected to the four first coil portions. 2 test pads 164, which are positioned directly opposite each other. I will explain in detail later.
[0416] That is, in order to test the mounting state of the second Hall sensor 72, On 160, the four second test pads 164 must be exposed to the outside. After the test of the second Hall sensor 72 is completed, the second test pad 1 The exposed portion of the second test pad 64 must be covered with a protective material. If the lead 164 is exposed to the outside and comes into contact with other components, a short circuit may occur. This can cause reliability issues.
[0417] At this time, in the embodiment, the second coil portion 14 is placed on the second test pad 164. 2b, i.e., the exposed portion of the second test pad 164. is covered by the second coil portion 142b, and therefore, This prevents the second test pad 164 from coming into contact with other components. The second coil portion 142b is disposed so as to surround the coil pattern. The second coil portion 142b is configured to include a protective member (or insulating member) that is This solves the problem caused by contact between the first test pad 164 and the second test pad 164. Cut.
[0418] In the following, the first test pad 163 and the first coil portion 14 on the first substrate 160 will be described. The arrangement structure with 1b will now be described in detail.
[0419] The first substrate 160 includes an insulating portion. The insulating portion includes an insulating layer 160-1, a first protective layer 160-2, and a second protective layer 160-3. The protective layer 160 may include a first protective layer 160-3 and a second protective layer 160-4.
[0420] Specifically, the first substrate 160 includes an insulating layer 160-1. The insulating layer 160-1 may be rigid, but may be flexible. That's fine.
[0421] For example, the insulating layer 160-1 may be made of soda lime glass. or chemically strengthened or semi-strengthened glass such as aluminosilicate glass, or polyimide (Pol yimide, PI), polyethylene terephthalate (polyethylene terephthalate rephthalate, PET), propylene glycol (propylene glycol Polycol (PPG), polycarbonate (PC), and other reinforced or soft plastics It may contain sapphire.
[0422] Also, the insulating layer 160-1 may be partially rigid or flexible. Therefore, the first substrate 160 may have a flat surface in part and a curved surface in part. For example, the first substrate 160 can bend while having a random curvature in part. It can bend or flex while having a surface with random curvature. do.
[0423] A circuit pattern may be disposed on the insulating layer 160-1. The circuit pattern may include a first mounting pad (not shown) on which the IC 161 is mounted. The circuit pattern may include a second mounting pad (not shown) on which an electronic component 162 is mounted. , a first test pad 163 connected to the first Hall sensor 71. The turntable connects the first Hall sensor 71 and the first test pad 163 or 1 may include a connection wire 160-2 connecting between the Hall sensor 71 and the driver IC 161. do.
[0424] A first protective layer 160 is disposed on the insulating layer 160-1 to cover the circuit pattern. The first protective layer 160-3 may be disposed on the insulating layer 160-1. The first test pad 163 may be disposed in the path pattern so as to expose its surface. Although not shown in the drawing, the first protective layer 160-3 is formed on the circuit pattern. , a coil pad (not shown) connected to the first coil portion 141b may be exposed. In this case, the first protective layer 160-3 may be a solder resist.
[0425] A second protective layer 160-4 may be disposed on the first protective layer 160-3. The second protective layer 160-4 may be a coverlay. The first test pad 163 disposed on the substrate 60-1 may be exposed.
[0426] That is, the first protective layer 160-3 and the second protective layer 160-4 are provided with a first test pad. An opening 160-5 exposing the surface of the gate 163 can be formed. 0-5, the first test pad 163 may be exposed toward one side of the first substrate 160. The one side direction may be a direction facing an outer surface of the first side wall of the base 20. That is, the opening 160-5 is a first opening region formed in the first protective layer 160-3. and a second opening region formed in the second protective layer 160-4.
[0427] Meanwhile, the first coil part 141b may be disposed on the second protective layer 160-4. At this time, at least a part of the first coil portion 141b is in contact with the first protective layer 160-3 and and may overlap with the opening 160-5 formed in the second protective layer 160-4. That is, the openings 160 formed in the first protective layer 160-3 and the second protective layer 160-4 -5 may be covered by the first coil portion 141b.
[0428] That is, in the embodiment, in the state where the first hall sensor 71 is mounted as described above, , using the first test pad 163 exposed through the opening 160-5, The resistance of the Hall sensor 71 can be measured to test the mounting state. Then, when the test for the mounting state of the first Hall sensor 71 is completed, the opening 1 The first coil portion 141b is disposed on the substrate 60-5. The first coil portion 141b is used to cover the exposed portion of the first test pad 163. do.
[0429] According to this, in the embodiment, an additional protective layer for protecting the first test pad 163 is provided. Therefore, an additional process for forming a protective layer is not required. Therefore, the manufacturing process can be simplified, and the elimination of the protective layer reduces manufacturing costs. In the embodiment, the first test pad 163 or The protective layer does not need to be exposed to the outside, which helps to achieve the effect of design improvement. This allows for greater freedom in design.
[0430] In addition, in FIG. 28a, the first test pads 163 and Although only the arrangement of the first coil portion 141b and the second substrate region 141c is shown, 160b, a second test pad 164 and a second coil portion 142b may be disposed. .
[0431] Meanwhile, referring to FIGS. 28b and 28c, on the insulating layer 160-1 of the first substrate 160, The connecting wire 160-2 is connected to the first Hall sensor. 71 and the first test pad 163. 2 may connect the first Hall sensor 71 and the driver IC 161 .
[0432] At this time, the first hall sensor 71 is composed of the first-1 hall sensor 71a and the first- The two Hall sensors 71a and 71b are , including a plurality of terminals.
[0433] That is, the 1-1st hall sensor 71a includes an input terminal and an output terminal. In the conventional method, the input terminal of the first hall sensor 71a is connected to the driver IC 161. It contained only one terminal.
[0434] In contrast to this, the input terminal of the 1-1 Hall sensor 71a in the embodiment is The embodiment may include a first input terminal (not shown) and a second input terminal (not shown). The output terminal of the 1-1 hall sensor 71a in the and a first and second output terminal (not shown).
[0435] The connecting wire 160-2 connects the first input terminal 1-1 and the first test pad 16 The first connecting wiring 160-21 connecting the first test pad 163-1 to the first test pad 163-2 is Therefore, in the embodiment, the first test pad 163-1 may be used. Thus, the state of the input terminal of the first-1 hall sensor 71a can be tested.
[0436] The connecting wire 160-2 is connected between the first and second input terminals and the driver IC 161. Therefore, the driver IC 161 may include a third connecting wiring 160-23 that connects A signal is input to the first-first hall sensor 71a via the third connecting wire 160-23. You can exert your power.
[0437] The connecting wire 160-2 connects the output terminal 1-1 and the first test pad 16 The second connecting wiring 160-22 connects the first and second test pads 163-2 of the three Therefore, in the embodiment, the first and second test pads 163-2 may be , the state of the output terminal of the first-first hall sensor 71a can be tested.
[0438] The connecting wire 160-2 is connected between the first and second output terminals of the driver IC 161. Therefore, the driver IC 161 may include a fourth connecting wiring 160-24 that connects The signal output from the first-first hall sensor 71a is transmitted via the fourth connecting wire 160-24. It is possible to receive signals that are transmitted.
[0439] The first-second hall sensor 71b includes an input terminal and an output terminal. The input terminal of the 1-2 hall sensor 71b is connected to the input terminal of the 2-1 hall sensor (not shown), and 2-2 input terminal (not shown). The output terminal of 71b is connected to the 2-1 output terminal (not shown) and the 2-2 output terminal (not shown). ).
[0440] The connecting wire 160-2 connects the input terminal 2-1 and the first test pad 16 a fifth connecting wiring 160-25 connecting the first to third test pads 163-3 of the three test pads; Therefore, in the embodiment, the first to third test pads 163-3 may be used. This allows testing the state of the input terminal of the first-second Hall sensor 71b. At this time, the first-first test pad 163-1 and the first-third test pad 163-3 The first and second Hall sensors 71 may be disposed diagonally opposite each other, sandwiching the first Hall sensor 71. In this embodiment, the mutual interference of the first hall sensors 71 is minimized. can be done.
[0441] The connecting wire 160-2 is connected between the input terminal 2-2 and the driver IC 161 Therefore, the driver IC 161 may include a seventh connecting wiring 160-27 that connects the A signal is input to the first-second hall sensor 71b via the seventh connecting wiring 160-27. You can exert your power.
[0442] The connecting wire 160-2 connects the output terminal 2-1 and the first test pad 16 a sixth connecting wire 160-26 connecting the first to fourth test pads 163-4 of the three test pads; Therefore, in the embodiment, the first to fourth test pads 163-4 may be used. This makes it possible to test the state of the output terminal of the first-second Hall sensor 71b.
[0443] The connecting wire 160-2 is connected to the output terminal 2-2 and the driver IC 161 Therefore, the driver IC 161 may include an eighth connecting wiring 160-28 that connects the The signal output from the first-second hall sensor 71b is transmitted via the eighth connecting wire 160-28. Also, as shown in FIG. 28c, the first embodiment The first coil portion 141b is disposed on the test pad 163, so that the first coil The exposed surface of the first test pad 163 can be protected through the portion 141b. To do so.
[0444] FIG. 29a is an oblique view of the first substrate from which the first coil portion according to the second embodiment has been removed, viewed from a first direction. 29b is a perspective view of the first substrate from which the first coil portion according to the second embodiment has been removed, viewed in a second direction. FIG. 29c is a perspective view of the first substrate and the base according to the second embodiment. FIG. 29d is a diagram showing the structure of the first substrate with the base bonded thereto according to the second embodiment. do.
[0445] Referring to Figures 29a to 29d, the first and second test pads in the second embodiment are , the first coil portion 141b and the second coil portion 142b are overlapped on the first substrate 160. It may be placed in an area where it is not necessary to
[0446] That is, the first test pad 163 and the second test pad 164 in the first embodiment are , overlapping with the first coil portion 141b and the second coil portion 142b on the first substrate 160. were placed in the area.
[0447] In contrast to this, the first test pad 163a and the second test pad 164a is spaced apart from the first coil portion 141b and the second coil portion 142b on the optical axis. It can be arranged.
[0448] The first test pad 163a includes test pads 163-1a, 163-2a, 163-3a, 163-4a, 163-5a, 163-6a, 163-7a, 163-8a, 163-9a, 163-10a, 163-11a, 163-12a, 163-13a, 163-14a, 163-15a, 163-16a, 163-17a, 163-18a, 163-19a, 163-20a, 163-21a, 163-22a, 163-23a, 163-24a, 163-25a, 163-26a, 163-27a, 163-28a Test pads 1-1 to 1-4 include 63-2a, 163-3a, and 163-4a. Two of 163-1a, 163-2a, 163-3a, and 163-4a are from No. 1-1. The remaining two are connected to the first and second hall sensors 71b. .
[0449] The second test pad 164a includes test pads 2-1 to 2-4, 164-1a, 164-2a, 164-3a, 164-4a, 164-5a, 164-6a, 164-7a, 164-8a, 164-9a, 164-1b, 164-1c, 164-1d, 164-1e, 164-1f, 164-1g, 164-1h ... Test pads 2-1 to 2-4 include 64-2a, 164-3a, and 164-4a. Two of 164-1a, 164-2a, 164-3a, and 164-4a are from No. 2-1. The other two are connected to the second hall sensor 72b. .
[0450] At this time, the first test pad 163a and the second test pad 164 in the second embodiment Another protective layer may be disposed on top of a.
[0451] However, in the embodiment, the base 20 is used to connect the first test pad 163a and 2 so that the exposed surface of the test pad 164a can be protected.
[0452] That is, as shown in FIG. 29c and FIG. 29d, the first test pad 163a and The first and second side walls of the base 20 are disposed on the exposed surface of the second test pad 164a. The first sidewall and the second sidewall are connected to the first test pad 163a and the second test pad 163b. The exposed surface of the stop pad 164a (preferably, the first protective layer 160-3 and the second protective layer 160-4) 0-4) opening 160-5). The outer sides of the first sidewall and the second sidewall are disposed in contact with the second protective layer 160-4, It may be positioned over opening 160-5.
[0453] Therefore, in the second embodiment, there is no need for a separate protective layer to fill the opening 160-5. is.
[0454] That is, in the first embodiment, the opening 160-5 is connected to the first coil portion 141b and In the second embodiment, the coils 142b are arranged on both sides of the base 20. To be covered by a wall.
[0455] On the other hand, the first hall sensor 71 and the second hall sensor 72 are connected to the first coil portion as described above. The inner side of the winding of the second coil portion 141b and the second coil portion 142b is the hollow of the coil. The first hall sensor 71 and the second hall sensor 72 are disposed in the lens assembly. The Hall sensor detects the change in magnetic flux of the magnet placed on the lens assembly, and You can get location information.
[0456] Incidentally, the first Hall sensor is provided inside the first coil portion 141b and the second coil portion 142b. When the first coil portion 141b and the second hall sensor 72 are located, The height of the hole portion 142b determines the distance between the hall sensor and the magnet.
[0457] Thus, in the prior art, there is a thrust required for movement of the lens assembly. In order to ensure such a thrust, the coil must have a height greater than a predetermined value.
[0458] However, as the coil height increases, This increases the distance between the Hall sensor and the magnet. Since the flux is interrupted, the magnetic field sensed by the Hall sensor placed inside the coil There was a technical contradiction in that the sensitivity of the bundle weakened. On the other hand, if the coil height was reduced, The electromagnetic force between the magnet and the coil is weakened, resulting in a decrease in the thrust for AF or Zoom drive. There was a problem to lower.
[0459] Also, a decrease in thrust or a decrease in sensitivity of the Hall sensor will affect the camera control. This caused issues with the accuracy of the camera, and the decentering and tilt of the camera module This phenomenon is directly linked to the safety and lives of the users, drivers and pedestrians. obtain.
[0460] Therefore, one of the technical challenges of the embodiment is to increase the thrust while maintaining the Hall sensor. We provide a camera actuator and a camera module that includes the same, which can simultaneously increase sensitivity. The key is to try.
[0461] FIG. 30a is a perspective view showing a first substrate on which a coil portion according to a third embodiment is arranged, and FIG. 30b is a perspective view showing a first substrate from which a coil portion according to a third embodiment has been removed, and FIG. 30c is a perspective view showing a first substrate from which a coil portion has been removed according to a third embodiment. FIG. 10 is a cross-sectional view of a first substrate according to a third embodiment.
[0462] Before describing this, the first lens assembly 110 in the embodiment is The second lens assembly 120 may include a second drive unit 116 and a third drive unit 141. The drive section 126 and the fourth drive section 142 may be included.
[0463] The first driving unit 116 and the second driving unit 126 may be magnet driving units, and the third driving unit The driving unit 141 and the fourth driving unit 142 may be, but are not limited to, coil driving units. It's not that.
[0464] In the camera actuator according to the embodiment, the first lens assembly 110 The first driving unit 116 may include a first magnet 116b and a first yoke 116a, and the third driving unit The moving part 141 may include a first coil part 141b and a third yoke 141a.
[0465] In addition, in the camera actuator according to the embodiment, the second lens assembly 120 The second driving part 126 may include a second magnet 126b and a second yoke 126a. The fourth drive section 142 may include a second coil section 142b and a fourth yoke 142a.
[0466] 30a to 30c, the first coil 160 of the first substrate 160 The areas where the first coil portion 141b and the second coil portion 142b are arranged are provided with seating grooves 160- 6 is formed. In the embodiment, the first coil portion 141b and the second coil portion 142 b is disposed in the seating groove 160-6.
[0467] Therefore, in this embodiment, the first coil portion 14 is formed by the depth of the seating groove 160-6. The positions of the first coil portion 141b and the second coil portion 142b may be arranged so as to be away from the magnet. In this embodiment, the first magnet is disposed facing the first coil portion 141b. The seat 116b is moved closer to the first hall sensor 71 by the depth of the seating groove 160-6. can be placed in
[0468] That is, the first coil portion 141b and the first magnet 116b are in a constant state with respect to each other. In this embodiment, the first substrate 160 is secured to the first substrate 160. A groove 160-6 is formed, and the first coil portion 141b is disposed in the seating groove 160-6. Therefore, the first magnet 116b is inserted into the first hole by the depth of the seating groove 160-6. In other words, the embodiment can be arranged closer to the seating sensor 71 than the comparative example. The distance between the first Hall sensor 71 and the first magnet 116b is equal to the depth of the groove 160-6. You can get closer.
[0469] In the embodiment, the second coil portion 142b is disposed opposite to the second coil portion 142b. The magnet 126b is moved closer to the second Hall sensor 72 by the depth of the seating groove 160-6. It can be arranged so that
[0470] That is, the second coil portion 142b and the second magnet 126b are mutually in a constant state. In this embodiment, the first substrate 160 is secured to the first substrate 160. A groove 160-6 is formed, and the second coil portion 142b is disposed in the seating groove 160-6. Therefore, the second magnet 126b is inserted into the second hole by the depth of the seating groove 160-6. In other words, the embodiment can be arranged closer to the comparative example. The depth of the seating groove 160-6 is sufficient to separate the second Hall sensor 72 from the second magnet 126b. The distance between them is reduced.
[0471] At this time, the seating groove 160-6 is formed by removing the second protective layer 160-4 on the first substrate 160. It may be a removal area.
[0472] That is, in the first embodiment, the first coil portion 141b and the second coil portion 142b are 2 protective layer 160-4.
[0473] In contrast to this, the first coil portion 141b and the second coil portion 142b in the second embodiment may be disposed on the first protective layer 160-3.
[0474] That is, the second protective layer 160-4 is disposed to cover the entire surface of the first protective layer 160-3. The area where the first coil portion 141b and the second coil portion 142b are arranged is not limited to the area where the first coil portion 141b and the second coil portion 142b are arranged. and an open area (which corresponds to the seating groove). The first coil portion 141b and the second coil portion 142b are formed on the second protective layer 160-4. The ion implantation device may be located in an open area.
[0475] FIG. 31 compares the distance between the Hall sensor and the magnet in the example and the comparative example. This is a diagram for
[0476] FIG. 31(a) is a diagram showing the arrangement structure of the drive unit in the comparative example, and FIG. 31(b) is a diagram showing the arrangement structure of the drive unit in the comparative example. FIG. 2 is a diagram showing the layout structure of a drive unit in the embodiment.
[0477] Referring to FIG. 31(a), in the comparative example, the first coil is provided on the first substrate 160-41. The hole portion 160-42 and the hall sensor 160-43 are respectively arranged. The first magnet 160-44 is disposed at a distance a from the first coil portion 160-42. At this time, the first coil portion 160-42 and the first magnet 160-44 are spaced apart from each other by a first gap. They may be spaced apart by a distance DH1.
[0478] Referring to FIG. 31(b), in this embodiment, the first coil portion 1 is disposed on the first substrate 160. 41b and the first hall sensor 71 are disposed. At this time, the first board 160 is seated in the seating groove. The first coil portion 141b is disposed in the seating groove 160-6. In this embodiment, the second coil portion 141b is spaced apart from the first coil portion 141b by a distance a. In this embodiment, the first magnet 116b is disposed. The first magnet 116b is spaced apart from the first magnet 116a by a second distance DH2 that is smaller than the first distance DH1. They can be spaced apart.
[0479] That is, the distance between the first coil portion and the first magnet is different between the example and the comparative example. In the same case, in the embodiment, only the depth of the seating groove 160-6 is different from that of the comparative example. The distance between the first hall sensor 71 and the first magnet 116b can be reduced. Therefore, in the embodiment, the first hall sensor 71 and the first magnet 116 As the distance between a and b decreases, the sensitivity of the Hall sensor to position measurement can be improved. This improves reliability. When this is the case, the first distance DH1 is made larger than the second distance DH2 by the amount b. It is possible.
[0480] FIG. 32 shows the magnetic flux ( Magnet Flux) data.
[0481] Referring to FIG. 32, in this embodiment, the first magnet is inserted by the depth of the seating groove 160-6. The distance between the first Hall sensor and the second Hall sensor is reduced.
[0482] For example, the second distance DH2 in the example is 400 μm or less. As a result, the first magnet is shorter than the comparative example. The magnetic flux between 116b and the first Hall sensor 71 is increased to about 150 mT, which is higher than that of the comparative example. This is due to a unique technical effect that can ensure approximately three times the level of
[0483] Therefore, the camera actuator according to the embodiment and the camera module including the same are This unique technical effect allows for increased force while simultaneously increasing the sensitivity of the Hall sensor. do.
[0484] Next, one of the technical problems of the embodiment is that when realizing AF or Zoom, multiple lenses are used. When the lens assembly is driven by the electromagnetic force between the magnet and the coil, This camera actuator prevents magnetic field interference between the magnets attached to the assembly. The present invention aims to provide a camera module including the same.
[0485] One of the technical problems of the embodiment is to prevent the magnet from coming off the yoke. The present invention aims to provide a camera actuator and a camera module including the same. The reason is that.
[0486] Next, FIG. 33 shows the oblique movement of the first driving unit 116 in the camera actuator according to the embodiment. FIG.
[0487] Referring to FIG. 33, in the embodiment, the first driving unit 116 includes a first magnet 116b and a The first yoke 116a includes a first support portion 116a1 and a second support portion 116a2. A first side projection 11 extends from the first support 116a1 to the side of the first magnet 116b. 6a2.
[0488] The first side protrusions 116a2 may be disposed on both sides of the first magnet 116b. do.
[0489] In addition, the first yoke 116a may extend in a direction different from that of the first side protrusion 116a2, for example, For example, it may include a first fixing protrusion 116a3 extending in the opposite direction.
[0490] The first fixing protrusion 116a3 is disposed at a position approximately in the middle of the first support portion 116a1. It may be, but is not limited to this.
[0491] Similarly, in the embodiment, the second driving unit 126 includes a second magnet 126b and a second yoke 12 The second yoke 126a includes a second support portion (not shown) and a front portion extending from the second support portion. and a second side protrusion extending to a side of the second magnet 126b.
[0492] The second side protrusions may be disposed on both sides of the second magnet 126b. The second yoke 126a extends in a direction different from, for example, the opposite direction to, the second side protrusion. The second support may include a second fixing protrusion (not shown). The second fixing protrusion may be located approximately midway between the second support and the second fixing protrusion. The position of the optical axis may be, but is not limited to, 20 degrees.
[0493] In the prior art, a plurality of lens assemblies are used to realize AF or Zoom. The lens is driven by the electromagnetic force between the magnet and the coil, but There is a problem that magnetic field interference occurs between the magnets. Interference can cause AF or zoom drive to not function properly, resulting in reduced thrust.
[0494] In addition, magnetic field interference between magnets can cause decentering and tilting. There are problems that induce the phenomenon.
[0495] Such magnetic interference can cause issues with the precision of camera control and reduce thrust. In this case, decentering or tilting may occur. In such cases, the safety and lives of the users, drivers and pedestrians, could be directly affected.
[0496] <First Camera Actuator 300> In the following, a second camera actuator according to an embodiment will be described.
[0497] FIG. 34a is a perspective view of a second camera actuator of a camera module according to an embodiment. 34b is an exploded perspective view of a second camera actuator according to an embodiment.
[0498] Referring to FIGS. 34a and 34b, the first camera actuator 300 according to the embodiment is a housing 310 and an image shake control unit 320 disposed on the housing 310; and a mover 330 disposed on the image shake control unit 320. The image shake control unit 320 may correspond to the first driving unit (1150 in FIG. 5) described above. do.
[0499] The first camera actuator 300 may further include a cover member 301 . The cover member 301 includes an internal storage space and has at least one open side. For example, the cover member 301 may have a plurality of open sides connected to each other. In detail, the cover member 301 may have a structure in which light is incident from the outside. a surface corresponding to the second camera actuator 100 and a rear surface opposite to the front surface; It may have an open structure and provide a light movement path for the mover 330 described below. Furthermore, the terms used in the first camera actuator in FIGS. 1 to 18 are the same as those used in the first camera actuator. For the same terms, the contents described below can be applied in the same manner as the contents described above.
[0500] The cover member 301 may include a rigid material. The cover member 301 may include materials such as resin and metal, and is disposed in the housing space. For example, the cover member 301 can support the housing 310. The image shake control unit 320 and the mover 330 are enclosed in the frame 310. and can support the structure.
[0501] In detail, the mover 330, which will be described later, is controlled by the image shake control unit 320. In this case, the cover member 301 can move in the first direction and / or the second direction. The housing and the image shake control unit 320 can be fixed in a set position. This allows for a more accurate light path. The elastic force of the elastic member 350 causes the housing 310 to move toward the first camera actuator 3 The cover member 301 can prevent the housing 310 from coming off. , the image shake control unit 320 and the mover 330 may be omitted depending on the arrangement relationship. Good too.
[0502] 35 to 38 are perspective views of the respective components of the second camera actuator.
[0503] 35 to 38, the first camera actuator 300 is the image shake control unit 320, the mover 330, and the tilt guide unit 35 0 and a pooling magnet 360. In particular, the image shake control unit 320 includes a drive circuit board 321, a plurality of coils 323, and a plurality of magnets 325. The mover 330 may include an optical member 331 and the holder 333. Mover 330 may correspond to the movers described above.
[0504] According to the embodiment, an image stabilization control unit (ISU) disposed on the housing 310 320, an ultra-slim, ultra-compact camera actuator and a camera including the same can be realized. The technical effect is to provide a laser module.
[0505] According to the embodiment, the image shake control unit 320 is disposed below the mover 330. By placing the lens in the optical system, the size of the lens assembly can be reduced when realizing OIS. This provides the technical effect of eliminating this problem and ensuring sufficient light intensity.
[0506] Furthermore, according to the embodiment, the image stabilization unit 310 is stably disposed on the housing 310. The mover 330 is tilted along the first axis or the second axis, and the OI When realizing S, we minimize the occurrence of decentering and tilting phenomena. This provides the technical effect of miniaturizing the lens and providing the best optical characteristics.
[0507] Furthermore, according to the embodiment, unlike the existing system that moves a plurality of solid lenses, The control unit 320 controls the tilt of the mover 330 along the first or second axis to achieve OI. By implementing S, the technical effect is achieved of being able to implement OIS with low power consumption.
[0508] Hereinafter, with reference to FIGS. 35 to 38, the respective components of the first camera actuator 300 will be described. I will explain this in detail.
[0509] <Image Stabilization Control Unit> FIG. 35a is a perspective view of the image shake control unit 320 of the first camera actuator 300. 35b is an exploded view of the image shake control unit 320 of the first camera actuator 300. FIG.
[0510] Referring to FIGS. 35a and 35b, the image shake control unit 320 includes a driver circuit It may include a substrate 321 , a coil portion 323 , and a magnet 325 .
[0511] The driving circuit board 321 is connected to a predetermined power supply unit (not shown), and the coil unit 32 3. The driver circuit board 321 is a rigid printed circuit board ( Rigid PCB, Flexible PCB, Rigid-Flexible Printed Circuit Wiring patterns that can be electrically connected, such as rigid flexible PCBs The circuit board may include a
[0512] The coil unit 323 may be electrically connected to the driver circuit board 321. The coil portion 323 may include one or more coil portions. For example, the coil portion 323 may include a It may include a first coil portion 323a, a second coil portion 323b, and a third coil portion 323c. The coil portion 323 may correspond to the first to third coils described above.
[0513] The first to third coil portions 323a, 323b, and 323c may be spaced apart from each other. For example, the driving circuit board 321 may have a U-shape, and the first coil part 323a and the The second coil portion 323b is provided on the first and second surfaces of the drive circuit board 321 facing each other. The third coil part 323c may be disposed on the driving circuit board 321. The first and second surfaces may be arranged on a third surface connecting the first and second surfaces.
[0514] The magnet 325 may include one or more magnets. The magnet 325 includes a first magnet 325a disposed in a region corresponding to the coil portion 323. , a second magnet 325b, and a third magnet 325c. The magnet 325a is disposed on the first surface in a region corresponding to the first coil portion 323a. The second magnet 325b may be disposed on the second surface. The third magnet 325c may be disposed on a region corresponding to the third magnet 325b. The magnet may be disposed in an area corresponding to the third coil portion 323c on three sides. 325 may correspond to the first to third magnets described above.
[0515] The image shake control unit 320 may further include Hall sensors HS1 and HS2. For example, the Hall sensors HS1 and HS2 include a first coil portion 323a and a second coil The first hole cell is arranged adjacent to one of the coil sections selected from the section 323b. and a second hole sensor HS1 disposed adjacent to the third coil portion 323c. It may include sensor HS2.
[0516] On the other hand, the drive circuit board 321 is provided with the first board 1 described in the first actuator. 60. The drive circuit board 321 may include some of the components included in the first It may correspond to the substrate portion.
[0517] That is, in the drive circuit board 321, the first coil portion 323a, the second coil portion A seating groove may be formed in the area where the third coil portion 323b and the third coil portion 323c are disposed. The groove may be an open area of the coverlay. The area where the third coil part 323b and the third coil part 323c are arranged is provided with the Hall sensor HS1. , test pads (not shown) for testing HS2 may be formed.
[0518] That is, in an embodiment, a feature including a test pad for testing the Hall sensor. The coverlay in the area where the coil section is arranged is opened. The test pad and the open area of the coverlay are connected to the first substrate 160 and the drive The entire circuit board 321 may be formed on the same substrate.
[0519] <Housing> FIG. 36a is a perspective view of the housing 310 of the first camera actuator 300. 36b is a perspective view of the housing of FIG. 36a to which a second tilt guide portion 352 is coupled. .
[0520] 36a and 36b, the housing 310 accommodates the mover 330. The housing 310 may include a plurality of inner surfaces. For example, the housing 310 has a first inner surface corresponding to a first surface of the driving circuit board 321. 310S1, a second inner surface 310S2 corresponding to the second surface of the driver circuit board 321, and , and may include a third inner surface 310S3 corresponding to the third surface of the driver circuit board 321.
[0521] In detail, the housing 310 has a first inner surface 323a corresponding to the first coil portion 323a. 10S1, a second inner surface 310S2 corresponding to the second coil portion 323b, and the third The coil portion 323c may include a third inner surface 310S3 corresponding to the coil portion 323c.
[0522] In addition, the housing 310 has the first inner surface 310S1 and the second inner surface 310 and a fourth inner surface 310S4 connected to the third inner surface 310S3. do.
[0523] The housing 310 may include a plurality of housing holes 311H. The hole 311H is a through hole that penetrates the outer and inner surfaces of the housing 310. The plurality of housing holes 311H may include first to third housing holes 311H. The first housing hole 311H1 may include a first A through-hole penetrating the inner surface 310S1 and the outer surface corresponding to the first inner surface 310S1. The second housing hole 311H2 may have a second inner surface 310S2 and a second The third housing may be a through hole penetrating through the outer surface corresponding to the inner surface 310S2. The hole 311H3 is formed on the third inner surface 310S3 and the hole 311H3 is formed on the third inner surface 310S3. The through-hole may extend through the outer surface.
[0524] The first housing hole 311H1 is formed in a region corresponding to the first coil portion 323a. In addition, the first housing hole 311H1 may be provided with the first coil portion 323. Therefore, the first coil portion 323a may have a size and a shape corresponding to the It may be disposed by being partially or entirely inserted into the first housing hole 311H1.
[0525] The second housing hole 311H2 is formed in a region corresponding to the second coil portion 323b. In addition, the second housing hole 311H2 may be disposed in the second coil portion 323. Therefore, the second coil portion 323b may have a size and shape corresponding to the It may be disposed by being partially or entirely inserted into the second housing hole 311H2.
[0526] The third housing hole 311H3 is formed in a region corresponding to the third coil portion 323c. In addition, the third housing hole 311H3 may be disposed in the third coil portion 323. Therefore, the third coil portion 323c may have a size and shape corresponding to the It may be disposed by being partially or entirely inserted into the third housing hole 311H3.
[0527] The housing 310 may include at least one recess 313R. A recess 313R may be disposed on at least one interior surface of the housing 310. Specifically, the recess 313R is disposed on the fourth inner surface 310S4 of the housing 310. The groove may extend in a direction toward the outer surface of the housing 310 on the fourth inner surface 310S4. It may have a concave shape in the z-axis direction.
[0528] The recess 313R of the housing 310 provides a space in which the tilt guide part 350 is disposed. Preferably, the recess 313R is provided in the tilt guide portion 350. A space for the second tilt guide part 352 to be disposed can be provided. An adhesive member (not shown) may be disposed in the recess 313R. The portion 352 is fixed to the recess 313R of the housing 310 by the adhesive member. It can be arranged.
[0529] 37a to 37c show the first camera actuator 300 relative to the mover 330. Figure.
[0530] 37a to 37c, the mover 330 is mounted in the housing 310. Specifically, the mover 330 may be disposed within the housing 310. can be placed in
[0531] The mover 330 includes an optical member 331 and a holder disposed on the optical member 331. The sensor 332 may include a sensor 333.
[0532] The optical member 331 may be a rectangular prism. That is, the optical member 331 can reflect the direction of the incident light. The path of the light incident on the first camera actuator 300 is diverted to the second camera actuator 300. The direction of the data 100 can be changed.
[0533] The holder 333 may be disposed on the optical member 331. The holder 333 may be disposed to enclose the optical member 331. One side of the holder 333 may be open, and may include a storage space therein. may have a structure in which a plurality of connected outer surfaces are open. The holder 333 may have an open outer surface corresponding to the optical member 331. , may include a receiving space defined as a first space 335 therein.
[0534] The holder 333 may include an inner surface 335S. The inner surface 335S may be configured to The first space 335 may be an inner surface of the optical member 331. The inner surface 335S of the first space 335 may have a shape corresponding to the optical member 331. Direct contact is possible.
[0535] The holder 333 may include a step 326. The step 326 may be The step 326 may be disposed within the optical element 331 to guide and / or stabilize the optical element 331. Specifically, the optical member 331 has a stepped portion on the outer side thereof. The optical member 331 may have a protrusion corresponding to the holder 326. The step 326 of the holder 333 can be guided to be placed in the first space 335. Therefore, the holder 333 can effectively support the optical member 331. In addition, the optical member 331 can be seated at a set position and oriented in the holder 333. It can have the above alignment characteristics.
[0536] The mover 330 may include multiple exterior surfaces. The holder 333 may include multiple outer surfaces. a first outer surface 330S1 corresponding to the first inner surface 310S1; a second outer surface 330S2 corresponding to the third inner surface 310S3; S3 and a fourth outer surface 330S4 corresponding to the fourth inner surface 310S4.
[0537] The holder 333 may include at least one recess. A recess may be disposed on at least one outer surface of 33. Specifically, the recess may include: The recess may be disposed on a fourth outer surface 330S4 of the holder 333. The outer surface 330S4 may have a recessed shape in the direction of the first space 335 (z-axis direction). do.
[0538] The holder 333 may have a plurality of recesses 338R and 339R. The recesses 338R, 339R may include a third recess 338R and a third recess 339R.
[0539] The third recess 338R may be disposed in a central region of the fourth outer surface 330S4. Specifically, the third recess 338R overlaps with the center of the fourth outer surface 330S4 in the z-axis direction. The third recess 338R faces the recess 313R of the housing 310. Preferably, the third recess 338R is disposed at the edge of the housing 310. The third recess 338 may be disposed in an area overlapping the center of the third recess 338R in the z-axis direction. R can provide a space in which the pulling magnet 360 is placed. The pulling magnet 360 can be inserted into the third recess 338R. At this time, an adhesive material (not shown) may be applied to the third recess 338R. The pulling magnet 360 is fixed in the third recess 338R by the adhesive member. The electrodes can be arranged in a predetermined manner.
[0540] A plurality of the fourth recesses 339R may be arranged on the fourth outer surface 330S4. The fourth recess 339R may be provided to be the same size as the third recess 338R or may be provided to be spaced apart from each other. The plurality of fourth recesses 339R may be provided in different sizes. and may be disposed adjacent to the fourth recess 319R and may be selectively disposed apart from the fourth recess 319R. That is, a part of the fourth recess 339R is spaced apart from the third recess 338R. The remaining part of the fourth recess 339R may be disposed in the third recess 338. In this case, the depth of the third recess 338R may be arranged to be connected to the fourth recess 338R. The depth of each of the plurality of fourth recesses 339R may be different from that of the first recess 329R. may be different from each other.
[0541] The fourth recess 339R may be disposed around the third recess 338R. The fourth recess 339R is spaced apart from the recess 313R by the third recess 338R. The ion implantation device may be arranged around the periphery of the ion implantation device.
[0542] For example, the plurality of fourth recesses 339R are arranged in the first direction (x-axis direction) with respect to the third recesses 338R. A first fourth sub-recess 339R1 and a second fourth sub-recess 33 9R2. The plurality of fourth recesses 339R may be formed from the third recess 338R. a third sub-fourth recess 339R3 spaced apart from or connected to the third sub-fourth recess 339R3 in the second direction (y-axis direction); and Four sub-fourth recesses 339R4 may be included.
[0543] The fourth recess 339R is inserted into the first tilt guide portion 351 of the tilt guide portion 350. Preferably, the fourth recess 339R has a space for the first inclined A plurality of protrusions (described later) of the movable guide portion 351 can be fitted into the protrusions.
[0544] That is, the fourth recess 339R is formed by a plurality of recesses arranged in the first tilt guide portion 351. The first tilt guide portion 351 is formed to correspond to the position of the protrusions of the first tilt guide portion 351. It is possible to provide a space in which
[0545] At this time, the depths of the fourth recesses 339R may be different from each other. The depths of the first fourth recess 339R1 and the second fourth recess 339R2 are the same. That is, the first fourth sub-recess 339R1 and the second fourth sub-recess 33 The depth of 9R2 is the height of the first protrusions (described later) of the first tilt guide portion 351. It may have a corresponding depth.
[0546] The third sub-fourth recess 339R3 and the fourth sub-fourth recess 339R4 are identical to each other. Preferably, the third sub-fourth recess 339R3 and the fourth sub-fourth recess 339R4 may have a depth of 1 / 2 mm. The depth of the recess 339R4 is determined by the number of second protrusions (described later) of the first tilt guide portion 351. The depth may correspond to the height of the
[0547] Meanwhile, the first sub-fourth recess 339R1 and the second sub-fourth recess 339R2 into which the first protrusion is fitted are The depth of each of the four recesses 339R2 is set to the third sub-fourth recess 339R3 into which the second protrusion is fitted. The depths of the fourth recess 339R3 and the fourth sub-recess 339R4 may be different. At this time, the height of the first protrusion of the first tilting guide portion 351 is set to be higher than the height of the second protrusion. Therefore, the first sub-fourth recess 339R1 and the second sub-fourth recess 339R2 can be made larger. The depth of each of the fourth recesses 339R2 is equal to or greater than the depth of the third sub-fourth recesses 339R3 and The depth of each of the four sub-fourth recesses 339R4 may be greater than the depth of each of the four sub-fourth recesses 339R5.
[0548] The holder 333 may further include a plurality of recesses. The groove may be recessed toward the first space 335 on the outer surface of the front wall 33. The plurality of recesses include a first recess 337R1, a second recess 337R2, and a third recess 337R3. For example, the first recess 337R1 may include a recess 337R2 on the first outer surface 330S1. The first recess 337R1 may be disposed in the first housing hole 311H1. The second recess 337R2 may be disposed in a corresponding area. The second recess 337R2 may be disposed on the second housing hole 31. 1H2. In addition, the third recess 337R3 may be disposed in a region corresponding to the third outer The third recess 337R3 may be disposed on the side surface 330S3 of the third housing hole. That is, the first housing hole 311H3 may be disposed in a region corresponding to the first housing hole 311H3. 11H1 may correspond to the first coil portion 323a, and the second housing hole 311H2 may correspond to the second coil portion 323b. may correspond to the third coil portion 323c.
[0549] The magnets 3 are disposed in the first to third recesses 337R1, 337R2, and 337R3. For example, the first magnet 325a may be disposed in the first recess 337R1. the second magnet 325b is disposed within the second recess 337R2; The third magnet 325c may be disposed in the third recess 337R3. They may be spaced apart from each other.
[0550] <Tilt guide part> FIG. 38a is a front perspective view of a tilt guide part constituting the second camera actuator; 38b is a rear perspective view of the tilt guide portion that constitutes the second camera actuator.
[0551] 38a and 38b, the tilt guide portion 350 includes a first tilt guide portion 351. , and a second tilt guide portion 352.
[0552] The first tilt guide portion 351 moves the mount in a second direction (for example, the up-down direction or the y-axis direction). The second axis can be used to rotate or tilt the second bar 330. The tilt guide portion 352 moves the mover 33 in a first direction (for example, the left-right direction or the x-axis direction). A rotation axis can be provided for rotating or tilting the 0.
[0553] As mentioned above, in some embodiments, rotation of mover 330 in a first direction causes the second tilt. The rotation in the second direction is performed by the first tilt guide portion 352. That is, the camera actuator is controlled by the mover 3 The rotation axis for rotation in the first direction of 30 and the rotation axis for rotation in the second direction are mutually Each plate is responsible for a different part. When the rotating shaft 330 rotates on two axes, the rotating shafts are different from each other by moving plates. This allows for more stable rotation and improves the accuracy of rotation. This makes it possible to ensure the safety of the rotational drive.
[0554] At this time, the tilt guide portion 350 is in contact with the housing 310 and the mover 330. It can be placed in between.
[0555] The tilt guide portion 350 includes a first tilt guide portion 351 and a second tilt guide portion 35 2 may have the same shape and size. and the second tilt guide portion 352 may be the same as each other. Therefore, the two tilt guide parts 350 can be manufactured in the same manner using one equipment. This ensures ease of manufacturing.
[0556] However, the first tilt guide portion 351 and the second tilt guide portion 352 that constitute the tilt guide portion 350 The portions 352 are arranged in different directions between the housing 310 and the mover 330. It can be placed.
[0557] That is, the tilt of either the first tilt guide portion 351 or the second tilt guide portion 352 The movable guide portion can be disposed rotated 90 degrees with respect to the other tiltable guide portion.
[0558] The first tilt guide part 351 and the second tilt guide part 352 may be coupled to each other.
[0559] That is, the second tilt guide part 352 is coupled to the housing 310. The first tilt guide portion 351 is configured to guide the mover 330 to the second tilt guide portion 352. and can be coupled to the second tilt guide portion 352. The meaning of this is that the first tilt guide portion 351 is fixed to the second tilt guide portion 352. The first tilting guide portion 351 is not combined with the second tilting guide portion 352, but is simply combined with the second tilting guide portion 352. It means pure contact.
[0560] At this time, the first tilt guide portion 351 includes a plurality of protrusions and a plurality of grooves, and The second tilt guide part 352 also includes a plurality of protrusions and a plurality of grooves. The plurality of protrusions of the tilt guide portion 352 are fitted into the plurality of grooves of the first tilt guide portion 351. This will now be explained in more detail.
[0561] The first tilt guide portion 351 and the second tilt guide portion 352 are driven by an external driving force, for example, The coil part 323 and the magnet 325 move the mover 330 in the moving direction. A rotation axis can be provided.
[0562] The first tilt guide portion 351 may include a 1-1 surface 351S1.
[0563] The 1-1 surface 351S1 faces the fourth outer surface 330S4 of the mover 330. It can be a matching surface.
[0564] The first tilt guide portion 351 has a first moving protrusion 3 on a first-first surface 351S1. The first moving protrusion 35 may be provided with a first auxiliary protrusion 351P1 and a first auxiliary protrusion 351P2. 1P1 functions as a rotation axis that rotates the mover 330 in the second direction. The protruding portion 351P2 is a stopper that limits the rotation range of the mover 330 in the second direction. It can function as follows.
[0565] The first moving protrusion 351P1 is located on the 1-1 surface 35 of the first tilt guide portion 351. The first and second electrodes 1S1 and 1S2 may be arranged apart from each other in the first direction (x-axis direction) with respect to the central region of the first electrode 1S1. The central area of the first-first surface 351S1 is fixed to the mover 330. It may be the area facing the ring magnet 360. Preferably, the first surface 3 The central region of 51S1 is the pulling magnet fixedly disposed on the mover 330. 360 in the z-axis direction.
[0566] The first moving protrusions 351P1 are spaced apart from each other in the x-axis direction of the central region. That is, the first moving protrusion 351P1 is - a first sub-first moving protrusion 351Pa arranged to be spaced apart in the x-axis direction, and a front a second sub-first moving protrusion disposed at a distance in the +x-axis direction with respect to the central region; It may include part 351Pb.
[0567] The first sub-first moving protrusion 351Pa is located in the first sub-fourth recess 339R1. That is, the first sub-first moving protrusion 351Pa may correspond to the first At least a portion of the first recess 339R1 may be disposed within the fourth recess 339R1. At least a part of the sub-first moving protrusion 351Pa is in contact with the first sub-fourth recess 339. At this time, the height of the first sub-first moving protrusion 351Pa can be fitted into the first moving protrusion R1. The depth of the first sub-fourth recess 339R1 can be greater than the depth of the first sub-fourth recess 339R1. , only a part of the first sub-first moving protrusion 351Pa is in the first sub-fourth recess 3 39R1. As a result, the first sub-first moving protrusion 351 With at least a portion of Pa fitted into the first sub-fourth recess 339R1, The first tilt guide portion 351 has a first surface 351S1 which faces the fourth surface 351S of the holder 333. It may be spaced apart from the outer surface 330S4 by a certain distance.
[0568] The second sub-first moving protrusion 351Pb is located in the second sub-fourth recess 339R2. That is, the second sub first moving protrusion 351Pb may correspond to the first At least a portion of the second recess 339R2 may be disposed within the second sub-fourth recess 339R2. At least a part of the sub-first moving protrusion 351Pb is inserted into the second sub-fourth recess 33. 9R2. At this time, the second sub-first moving protrusion 351Pb The height can be greater than the depth of the second sub-fourth recess 339R2. Therefore, only a part of the second sub-first moving protrusion 351Pb is inserted into the second sub-fourth recess. 339R2. This allows the second sub-first moving protrusion 35 With at least a portion of the 1Pb fitted into the second sub-fourth recess 339R2, The first tilt guide portion 351 has a first-first surface 351S1. 4 may be spaced apart from the outer surface 330S4 by a certain distance.
[0569] The first sub-first moving protrusion 351Pa and the second sub-first moving protrusion The protrusions 351Pb are arranged in the x-axis direction with the center of the first tilt guide portion 351 as a reference. , thus providing a rotation axis for the mover 330 to rotate in the second direction. That is, the mover 330 is configured to move the first sub-first moving protrusion 351Pa and the second The second moving protrusion 351Pb is moved in a direction perpendicular to the first moving protrusion 351Pb. The support member may be provided so as to be capable of rotational movement in a direction (up and down).
[0570] The first auxiliary protrusion 351P2 is disposed on the 1-1 surface 351S1 of the first tilt guide portion 351. The central region of the second direction (y-axis direction) may be spaced apart from each other. The central area of the first-first surface 351S1 is a pooling area fixed to the mover 330. It may be the area facing the magnet 360. Preferably, the first-first surface 351S The central region of the pulley 360 is fixed to the mover 330. and the z-axis direction.
[0571] The first auxiliary protrusions 351P2 are arranged apart from each other in the y-axis direction of the central region. That is, the first auxiliary protrusion 351P2 is inclined in the +y-axis direction with the central region as a reference. The first sub-first auxiliary protrusion 351Pc is spaced apart from the center region. The second sub-first auxiliary protrusion 351Pd may be arranged spaced apart in the -y-axis direction.
[0572] The first sub-first auxiliary protrusion 351Pc corresponds to the third sub-fourth recess 339R3. That is, the first sub-first auxiliary protrusion 351Pc can be At least a portion of the first auxiliary sub-unit may be disposed within the first auxiliary sub-unit. At least a portion of the protrusion 351Pc can be fitted into the third sub-fourth recess 339R3. do.
[0573] At this time, the height of the first sub-first auxiliary protrusion 351Pc is Therefore, the depth of the first sub-first auxiliary projection can be made smaller than that of the first auxiliary projection. The protruding portion 351Pc can be entirely fitted into the third sub-fourth recess 339R3. , the height of the first sub-first auxiliary protrusion 351Pc and the third sub-fourth recess 339 The difference between the depth of R3 corresponds to the range of movement of the mover. The difference between the height of the first auxiliary protrusion 351Pc and the depth of the third sub-fourth recess 339R3 Only then does the mover 330 move upward via the first tilt guide portion 351. When the first auxiliary protrusion 351 is out of the range of movement, Pc contacts the bottom surface of the third sub-fourth recess 339R3 and stops the movement of the mover 330. can be limited.
[0574] The second sub-first auxiliary protrusion 351Pd corresponds to the fourth sub-fourth recess 339R4. That is, the second sub-first auxiliary protrusion 351Pd can be At least a portion of the second sub-sub-first auxiliary valve 339R4 may be disposed within the first auxiliary valve 339R5. At least a portion of the protrusion 351Pd can be fitted into the fourth sub-recess 339R4. do.
[0575] At this time, the height of the second sub-first auxiliary protrusion 351Pd is Therefore, the depth of the second sub-first auxiliary projection can be made smaller than that of the first auxiliary projection. The protruding portion 351Pd can be entirely fitted into the fourth sub-fourth recess 339R4. , the height of the second sub-first auxiliary protrusion 351Pd and the fourth sub-fourth recess 339R The difference between the depth of the second sub-threshold and the depth of the fourth sub-threshold may correspond to the range of movement of the mover. The difference between the height of the auxiliary protrusion 351Pd and the depth of the fourth sub-recess 339R4 is The mover 330 moves downward via the first tilt guide portion 351. When the second sub first auxiliary protrusion 351Pd is out of the range of movement, The fourth sub-recess 339R4 contacts the bottom surface of the fourth sub-recess 339R4 to limit the movement of the mover 330. It is possible.
[0576] The second tilting guide portion 352 has the same structure as the first tilting guide portion 351. The second tilt guide portion 352 is provided in the recess 313R of the housing 310. The first tilt guide portion 351 may be disposed in a different direction from the first tilt guide portion 351. The first moving protrusion 351P1, which has the greater height of the two protrusions, moves in the x-axis direction. The housing 310 and the mover 330 were arranged in such a manner that the The second tilt guide portion 352 is connected to the first moving protrusion 3 of the first tilt guide portion 351. 51P1。 The second moving protrusion 352P1 corresponds to the second moving protrusion 51P1. The protrusion 352P1 is vertically moved relative to the direction of arrangement of the first moving protrusion 351P1. That is, the second moving protrusion 352P1 may be disposed in a vertical direction. The guide portion 352 may be positioned in the y-axis direction with the center of the guide portion 352 as the reference.
[0577] The second tilt guide portion 352 may include a 2-1 surface 352S1.
[0578] The 2-1 surface 352S1 is in contact with the 1-1 surface 352S2 of the first tilting guide portion 351. It may be a surface facing the 1-2 surface 351S2, which is the opposite surface of the 1S1.
[0579] The second tilt guide portion 352 has a second moving protrusion 352S1 on a second-first surface 352S1. The second moving protrusion 352P1 and the second auxiliary protrusion 352P2 may be disposed. 2P1 functions as a rotation axis that rotates the mover 330 in the first direction. The protrusion 352P2 serves as a stopper that limits the rotation range of the mover 330 in the first direction. It can function as follows.
[0580] The second moving protrusion 352P1 is disposed on the 2-1 surface 35 of the second tilt guide portion 352. The second electrode 2S1 may be spaced apart from the central region of the second electrode 2S1 in the second direction (y-axis direction). The central area of the second-first surface 352S1 is fixed to the mover 330. It may be the area facing the ring magnet 360. Preferably, the second surface 3 The central region of 52S1 is the pulling magnet fixedly disposed on the mover 330. 360 in the z-axis direction.
[0581] The second moving protrusions 352P1 are spaced apart from each other in the x-axis direction of the central region. That is, the second moving protrusion 352P1 is A first sub-second moving protrusion 352Pa and a front moving protrusion 352B are arranged to be spaced apart in the +y-axis direction. a second sub-second moving protrusion disposed apart from the central region in the -y-axis direction; It may include part 352Pb.
[0582] The first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb is disposed on the 1-2 surface 351S2 of the first tilt guide portion 351, which will be described later. That is, the first sub-second moving recess 351R may correspond to the first moving recess 351R. The moving protrusion 352Pa and the second sub-second moving protrusion 352Pb are described later. The first moving recess 351 is disposed on the first-second surface 351S2 of the first tilt guide portion 351. 51R, which will be explained in more detail below. .
[0583] The first sub-second moving protrusion 352Pa and the second sub-second moving protrusion The protrusions 352Pb are arranged in the y-axis direction with the center of the second tilt guide portion 352 as a reference. , and thus provides a rotation axis for the mover 330 to rotate in the first direction. That is, the mover 330 is connected to the first sub-second moving protrusion 352Pa and the second The first moving protrusion 352Pb is moved in a direction perpendicular to the first moving protrusion 352Pb. A rotational movement in both directions (left and right) can be provided.
[0584] The second auxiliary protrusion 352P2 is disposed on the 2-1 surface 352S1 of the second tilt guide portion 352. The first and second electrodes may be spaced apart from each other in the first direction (x-axis direction) based on the central region of the first electrode. The central area of the second-first surface 352S1 is a pooling area fixed to the mover 330. It may be the area facing the magnet 360. Preferably, the second-first surface 352S The central region of the pulley 360 is fixed to the mover 330. and the z-axis direction.
[0585] The second auxiliary protrusions 352P2 are arranged apart from each other in the x-axis direction of the central region. That is, the second auxiliary protrusion 352P2 is inclined in the -x-axis direction with the central region as a reference. The first sub-second auxiliary protrusion 352Pc is spaced apart from the center region. The second auxiliary protrusion 352Pd may include a second sub-second auxiliary protrusion 352Pd that is spaced apart in the +x-axis direction.
[0586] The first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb is fitted into the first moving recess 351R of the first tilt guide portion 351. In the coupled state, the first sub-second auxiliary protrusion 352Pc and the second sub-second auxiliary protrusion The protruding portion 352Pd is spaced a certain distance from the first-second surface 351S2 of the first tilting guide portion 351. The separation distance may correspond to the range of motion of the mover.
[0587] That is, the first sub-second auxiliary protrusion 352Pc and the first-second surface 351S2 The mover 330 moves the second tilt guide portion 352 leftward by the separation distance between the When the first auxiliary projection is out of the range of movement, the second auxiliary projection is The portion 352Pc is in contact with the first-second surface 351S2 of the first tilting guide portion 351 at the bottom surface. The mover 330 can be moved by touching the handle 332.
[0588] In addition, between the second sub-second auxiliary protrusion 352Pd and the first-second surface 351S2 The mover 330 moves the second tilt guide portion 352 to the right by the separation distance of When the second auxiliary protrusion 3 is out of the range of movement, 52Pd is in contact with the 1-2 surface 351S2 of the first tilt guide portion 351 at the bottom surface. The movement of the mover 330 can be restricted by this.
[0589] Meanwhile, the first tilt guide part 351 may include a 1-2 surface 351S2. The -2 surface 351S2 faces the 2-1 surface 352S1 of the second tilt guide portion 352. They may be opposing sides.
[0590] The first tilt guide portion 351 has a first moving portion 351S2 on a first-second surface 351S2. A recess 351R may be disposed.
[0591] The first moving recess 351R is formed on the first-2 surface 35 of the first tilt guide portion 351. 1S2 as a reference, and therefore, the second tilt guide portion 352 and That is, the first moving recess 3 51R corresponds to the second moving protrusion 352P1 of the second tilt guide portion 352. That is, the first moving recess 351R is formed in the second moving protrusion 35 The first sub-first moving reset corresponding to the first sub-second auxiliary protrusion 352Pc of 2P1 the second sub-second auxiliary protrusion 352P of the second tilting guide portion 352. d and a second sub-first moving recess 351R2 corresponding to the first moving recess 351R.
[0592] Therefore, the first sub-second auxiliary protrusion 352P of the second moving protrusion 352P1 c can be at least partially fitted into the first sub-first moving recess 351R1, The second sub-second auxiliary protrusion 352Pd of the second tilt guide portion 352 is At least a portion of the moving recess 351R1 can be fitted into the moving recess 351R2.
[0593] Meanwhile, the second tilt guide portion 352 may include a 2-2 surface 352S2. The −2 surface 352S2 is a fourth inner surface in which the recess 313R of the housing 310 is formed. It may be the surface facing 310S4.
[0594] The second tilt guide portion 352 has a second moving portion 352S2 on its second-2 surface 352S2. Meanwhile, the second tilt guide portion 352 may have a recess 352R. The recess 352R may be omitted. Since the first tilt guide portion 352 is manufactured in the same process, the first tilt guide portion 352 is also manufactured in the same process as the first tilt guide portion 351. The second tilt guide portion 352 may also be provided with the second moving recess 352R.
[0595] The second moving recess 352R is formed on the 2-2 surface 35 of the second tilt guide portion 352. They can be arranged in the x-axis direction with the center of 2S2 as the reference.
[0596] For example, the second moving recess 352R is formed on the 2-2 surface 35 of the second tilt guide portion 352. The first sub-second moving recess 35 is disposed in the -x-axis direction with the center of 2S2 as the reference. 2R1 and the center of the 2-2 surface 352S2 of the second tilt guide portion 352 as a reference, +x It may include a second sub-second moving recess 352R2 disposed in the axial direction.
[0597] At this time, the second tilt guide portion 352 is inserted into the recess 313 of the housing 310. At this time, the second tilt guide portion 35 is fixedly disposed in the recess 313R. 2 is fixed to the second moving recess 352R. Therefore, the coupling force between the second tilt guide portion 352 and the housing 310 can be improved. That is, the second tilt guide portion can be attached to the housing 310 using the adhesive member. In the process of fixing the second tilt guide portion 352, the adhesive member The adhesive member can be inserted into the serving recess 352R, so that the contact area with the adhesive member This increases the adhesive strength.
[0598] On the other hand, the first tilting guide portion 351 and the second tilting guide portion 352 in the embodiment are They may be made of the same material, or may be made of different materials. In this case, the second tilting guide part 352 may be made of a magnetic material.
[0599] That is, the second tilting guide portion 352 is fixedly disposed on the housing 310 . The pulling magnet 360 is fixedly disposed on the mover 330. The first tilt guide portion 351 has a protrusion fitted into a recess of the mover 330, When the protrusion of the second tilt guide portion 352 is fitted into the recess, the second tilt guide The pulley 360 may be interposed between the pulley 352 and the pulley magnet 360 .
[0600] At this time, the second tilt guide part 352 is made of a magnetic material. The ring magnet 360 and the second tilt guide portion 352 generate an attractive force with each other. That is, the pulling magnet 360 and the second tilting guide portion 352 Therefore, the mover 330 moves the handle 330 toward the handle 330 by the attractive force. That is, the mover 330 is pressed toward the housing 310 by the attractive force. The first tilt guide portion 351 can be supported by the housing 310. As the bar 330 is compressed, it is compressed with the mover 330, The casing 310 may be supported.
[0601] Here, the first tilting guide portion 351 and the second tilting guide portion 352 are formed by a press method. Therefore, the first tilt guide part 351 and the second tilt guide part 352 may be formed of different materials. The first tilt guide portion 351 can be formed as the first tilt guide portion 352. Unlike the second tilt guide part 352, the first tilt guide part 352 may be made of a non-magnetic material. The guide portion 351 may be made of an injection molding or ceramic material. Therefore, the first tilt guide part 351 and the second tilt guide part 352 are made of a magnetic material. When the first tilt guide part 351 is made of a magnetic material, the first tilt guide part 351 may be made of a magnetic material. Between the tilt guide part 351, the second tilt guide part 352 and the pulling magnet 360 The bonding strength can be further improved.
[0602] On the other hand, on the 1-1 surface 351S1 of the first tilting guide portion 351, The first moving protrusion and the first auxiliary protrusions are arranged in a cross shape based on the first region. The second tilt guide portion 352 is provided with a second tilt guide member 352A, and the second tilt guide member 352A is provided with a second tilt guide member 352B. The supporting protrusion and the plurality of second auxiliary protrusions are arranged in a cross shape with the second region as a reference. At this time, the first and second regions overlap with the pulling magnet in a third direction. That is, on the 1-1 surface 351S1 of the first tilting guide portion 351, The first moving protrusions and the first auxiliary protrusions are connected to the pulling magnet. 360 in the z-axis direction. On the 2-1 surface 352S1 of the moving guide portion 352, the plurality of second moving protrusions and The plurality of second auxiliary protrusions are arranged in a region overlapping with the pulling magnet 360 in the z-axis direction. The regions may be arranged in a cross shape with the region at the center.
[0603] 39 and 40 show the housing, mover and 10 is a view showing the coupling relationship between two moving protrusions 352P1.
[0604] 39 and 40, the tilt guide portion 350 according to the embodiment includes a first tilt guide. The second tilt guide portion 351 may include a first tilt guide portion 352. 2 generates an attractive force to fix the mover 330 to the housing 310. , a rotation axis for rotating the mover 330 in a first direction can be provided.
[0605] The pulling magnet 360, the first tilting guide portion 351, and the second tilting guide portion The centers of each of 352 can overlap each other in the z-axis direction.
[0606] The first tilt guide portion 351 is disposed on the side where the second tilt guide portion 352 is disposed. Between the housing 310 and the mover 330 on which the pulling magnet 360 is disposed can be placed in
[0607] At this time, the first moving protrusion 351P1 and the first auxiliary The auxiliary protrusion 351P2 can be fitted into the fourth recess 339R of the mover 330. .
[0608] The first sub-first moving protrusion 351Pa is located in the first sub-fourth recess 339R1. The second sub-first moving protrusion 351Pb can be fitted into the second sub-fourth rib. It can be fitted into the cavity 339R2.
[0609] The first sub-first auxiliary protrusion 351Pc is located in the third sub-fourth recess 339R3. The second sub-first auxiliary protrusion 351Pd can be fitted into the fourth sub-fourth recess 3 It can be fitted into 39R4.
[0610] The first moving recess 351R of the first tilt guide portion 351 is provided with the second The second moving protrusion 352P1 of the tilt guide portion 352 can be fitted therein.
[0611] Therefore, the first tilting guide portion 351 is connected to the second tilting guide portion 352 and the pulley The attractive force acting between the moving magnet 360 and the mover 330 presses the The housing 310 can be supported by the support member 312 .
[0612] Therefore, the first tilt guide portion 351 moves the mover 330 in the y-axis direction. The second tilt guide portion 352 serves as a rotation axis for rotating the motor in the second direction. The rotation axis serves as a rotation axis for rotating the bar 330 in a first direction corresponding to the x-axis.
[0613] In this embodiment, the first to third magnets 325a are arranged on the holder 333. , 325b, 325c and the current between the first to third coil portions 323a, 323b, 323c. The mover 330 is tilted along the first or second axis by magnetic force. By doing so, decentering and tilting can be avoided when implementing OIS. This provides the technical effect of minimizing the occurrence of the phenomenon and achieving the best optical properties.
[0614] For example, an embodiment may include a tilt guide between the housing 310 and the mover 330. With the moving part 350 in place, the mover 330 drives the image shake control unit 320. By controlling the tilt on the first or second axis using force, decentering (d Minimizes the occurrence of center and tilt phenomena to provide the best optical characteristics This makes it possible to realize an ultra-slim and ultra-compact camera actuator. This provides a technical effect.
[0615] In addition, the mover 330 according to the embodiment includes the cover member 301 and the elastic member 350. Therefore, the front end of the housing 310 can be fixed in the housing 310 by the The separate magnet and yoke for fixing the mover 330 can be omitted. This allows for a slimmer camera actuator to be realized.
[0616] 41a and 41b are illustrations of the operation of the second camera actuator according to an embodiment. Figure.
[0617] Referring to FIG. 41, the mover 330 according to the embodiment includes the image shake control unit 32 The tilting can be controlled along the first or second axis by a driving force of 0.
[0618] First, referring to FIG. 41a, the mover 330 is moved by the first tilt guide portion 351. The first moving protrusion 351P1 is formed by a virtual first line L1 as a reference axis. Specifically, the image shake control unit 320 may be provided to rotate the The bar 330 can be rotated in the up and down direction.
[0619] For example, the third coil portion 323c adjacent to the first tilt guide portion 351 3-1 and the first tilt guide portion 351 of the third magnet 325c. A repulsive force may be generated between the adjacent third-1 magnet. The third coil portion 323c is the 3-2nd coil portion farthest from the first tilt guide portion 351. and the third magnet 325c, which is far from the first tilting guide portion 351, An attractive force can be generated between the magnet and the object.
[0620] Therefore, the mover 330 is tilted downward with the first line L1 as a reference axis. That is, the mover 330 may move in a predetermined direction in the up and down direction based on the first line L1. The angle of the light beam incident on the mover 330 can be tilted. It can be controlled.
[0621] Also, referring to FIG. 41b, the mover 330 is moved by the second tilt guide portion 352. The second moving protrusion 352P1 is formed by a virtual second line L2, which is a reference axis. Specifically, the image shake control unit 320 may be provided to rotate the The bar 330 can be rotated left and right.
[0622] For example, the second coil portion 323a adjacent to the second tilt guide portion 352 1-1 coil portion and the second tilt guide portion 352 of the first magnet 325a. A repulsive force may be generated between the first magnet and the adjacent first magnet. The 1-2 coil portion of the first coil portion 323a that is far from the second tilt guide portion 352 The first magnet 325a is located farthest from the second tilt guide portion 352. An attractive force can be generated between the second coil portion 32 and the magnet. 3b, the 2-1 coil portion adjacent to the second tilt guide portion 352 and the second The second tilt guide portion 352 is adjacent to the second tilt guide portion 352 of the magnet 325b. An attractive force may be generated between the front and rear portions of the second coil portion 323b. The second-2nd coil portion farther from the second tilt guide portion 352 and the second magnet 325b Among these, a repulsive force is generated between the magnet 2-2, which is far from the second tilt guide portion 352. can occur.
[0623] Therefore, the mover 330 is tilted left and right with the second line L2 as a reference axis. That is, the mover 330 may move in a predetermined direction in the left and right directions based on the second line L2. The angle of the light beam incident on the mover 330 can be tilted. It can be controlled.
[0624] Next, FIG. 42 shows an example of an integrated body 315 in a camera module according to another embodiment. FIG.
[0625] In another embodiment of the camera module, the first body region 3 of the integrated body 315 The second camera actuator 100 may be located in the second body region 315a, and the second body region 315b may be located in the A first camera actuator 300 may be disposed.
[0626] Next, FIG. 43 shows a mobile terminal 1500 to which a camera module according to an embodiment is applied. be.
[0627] As shown in FIG. 43, the mobile terminal 1500 of the embodiment has a camera module provided on the rear side. The camera includes a camera module 1000, a flash module 1530, and an autofocus device 1510. obtain.
[0628] The camera module 1000 may include image capture and autofocus functions. For example, the camera module 1000 may include an image-based autofocus function.
[0629] The camera module 1000 is configured to transmit an image to an image sensor in a photographing mode or a video call mode. The image frames are processed. The information can be displayed on a display unit or stored in a memory. A camera (not shown) may also be placed at
[0630] For example, the camera module 1000 includes a first camera module 1000A and a second camera module 1000B. and a first camera module 1000B, and Alternatively, OIS can be implemented along with the zoom function.
[0631] The flash module 1530 may include a light-emitting element therein for emitting light. The flash module 1530 is activated by the camera of the mobile terminal or by user control. can be operated by
[0632] The autofocus device 1510 is a surface emitting laser device package. It may include one of these.
[0633] The autofocus device 1510 may include a laser-based autofocus function. The device 1510 has a low autofocus function using the image of the camera module 1000. The autofocus device can be used mainly in conditions where the focus is too low, such as close to the subject (10 m or less) or in dark environments. The device 1510 includes a light emitting section including a vertical cavity surface emitting laser (VCSEL) semiconductor element. and a light receiving unit, such as a photodiode, that converts light energy into electrical energy. do.
[0634] Next, FIG. 44 is a perspective view of a vehicle 700 to which a camera module according to an embodiment is applied. do.
[0635] For example, FIG. 44 shows a vehicle driving assistance system to which the camera module 1000 according to the embodiment is applied. FIG. 1 is an external view of a vehicle equipped with the device.
[0636] Referring to FIG. 44, the vehicle 700 of the embodiment has wheels 13FL, 1 The camera may include a 3FR and a predetermined sensor. The sensor may be a camera sensor 2000. It can be, but is not limited to this.
[0637] The camera sensor 2000 is a camera to which the camera module 1000 according to the embodiment is applied. It can be a mela sensor.
[0638] The vehicle 700 of the embodiment captures a front image or a surrounding image through a camera sensor 2000. It is possible to acquire image information by using the image information to determine whether or not a lane is unidentified. When the vehicle is in a state where the vehicle is moving, a virtual lane can be generated.
[0639] For example, the camera sensor 2000 captures a front image of the vehicle 700 and displays it on the screen. The processor (not shown) analyzes the objects contained in the forward image and extracts the image information. can be obtained.
[0640] For example, the camera sensor 2000 may capture images of lanes, adjacent vehicles, obstacles, and other obstacles. If a photograph of an object such as a median strip, curb, or row of trees that corresponds to a roadside indicator is taken, The processor can detect such objects and include them in the video information.
[0641] At this time, the processor detects the object detected through the camera sensor 2000. The distance information can be acquired to further complement the video information. The information may be about the object.
[0642] Such a camera sensor 2000 may include an image sensor and a video processing module. The camera sensor 2000 is an image sensor (e.g., CMOS or CCD). The image processing module can process still or moving images captured by the image sensor. The still images or videos acquired through the The information can be transmitted to the processor.
[0643] At this time, the camera sensor 2000 improves the measurement accuracy of the object, and the vehicle 70 It is possible to include a stereo camera to obtain more information such as the distance between the object and the camera. However, the present invention is not limited to this.
[0644] Although the present invention has been described above mainly with reference to the examples, these are merely examples and should not be construed as limiting the scope of the present invention. The present invention is not limited to the above, and a person having ordinary skill in the art to which the present invention pertains can easily understand the present invention. Various modifications and applications not exemplified above may be made without departing from the essential characteristics of the embodiment. For example, each component specifically shown in the examples may be modified. The differences relating to such modifications and applications are set forth in the attached It should be construed as falling within the scope of the present invention as defined in the claims.
Claims
1. Housing and a first member coupled to the housing; a mover including an optical element; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; a tilting guide portion that guides the tilting of the mover, The mover includes a holder coupled to the optical member and a second a member; The tilt guide portion is moved forward and backward relative to the first member by the repulsive force between the first magnetic body and the second magnetic body. A camera actuator is attached to the holder.
2. In claim 1, The first member has a first through hole and a second through hole disposed apart from the first through hole. including through holes, The second member is located on the edge of the member base portion and faces the holder. a first extension portion extending toward the mover and a second extension portion extending away from the first extension portion toward the mover; and two extensions.
3. In claim 2, the first extension portion passes through the first through hole; The second extension passes through the second through-hole.
4. In claim 3, The first member is an upper member disposed above the first through hole and the second through hole; a lower member disposed below the first through hole and the second through hole; a connecting member that connects the upper member and the lower member; a first protrusion extending from one side of the upper member toward the holder; a second protrusion extending from the other side of the upper member toward the holder, The first extension and the second extension are disposed between the upper member and the lower member. Camera actuator.
5. Housing and a first member coupled to the housing; a mover including a holder; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; a tilting guide portion disposed between the holder and the first member, the mover includes a second member coupled to the holder; a portion of the first member is disposed between the second member and the holder; The first surface of the first magnetic body and the second surface of the second magnetic body facing the first surface are camera actuator with the same polarity.
6. In claim 5, The center of the second magnetic body and the center of the second member are arranged to be at different positions from each other. The camera actuator.
7. In claim 6, The center of the second magnetic body is located above or below the center of the second member. Chueta.
8. In claim 7, The area of the second magnetic body is larger than the area of the first magnetic body, The first magnetic body is arranged such that both ends of the second magnetic body are located within a virtual straight line extending in the optical axis direction. , camera actuator.
9. Housing and a first member coupled to the housing; a first magnetic body disposed on the first member; a second magnetic body corresponding to the first magnetic body; a second member on which the second magnetic body is disposed; a holder coupled to the second member; a tilting guide portion disposed between the holder and the first member, A portion of the first member is disposed between the second member and the holder. Chueta.
10. In claim 9, The first and second magnetic bodies are opposed to each other with the same polarity, and Eta.
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