Actuator Device

Abstract

A first embodiment of the present invention relates to an actuator device including a housing; a holder disposed within the housing; a reflective member disposed in the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to the holder; and a damper coupled to the mover rigid; the mover rigid including a protrusion coupled to the housing by the damper.

Description

[Technical field]

[0001] The present embodiment relates to an actuator device. [Background technology]

[0002] A camera device is a device that takes photographs or videos of a subject, and is attached to optical devices such as smartphones, drones, vehicles, etc.

[0003] In recent years, in order to improve image quality, camera devices are required to have an Optical Image Stabilization (OIS) function that corrects image shaking caused by the user's movement, an Auto Focus (AF) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens, and a zoom function that increases or decreases the magnification of a distant subject through a zoom lens.

[0004] Meanwhile, ultra-compact camera modules are built into portable devices such as smartphones, tablet PCs, and laptops, and these camera modules can perform an autofocus (AF) function that automatically adjusts the distance between the image sensor and the lens to match the focal length of the lens.

[0005] Recently, camera modules have been able to perform a zooming function, such as zooming up or zooming out, by increasing or decreasing the magnification of a distant object through a zoom lens.

[0006] Furthermore, in recent years, camera modules have adopted image stabilization (IS) technology to compensate for or prevent image shake caused by camera movement due to an unstable fixing device or user movement.

[0007] Such image stabilization (IS) technologies include optical image stabilizer (OIS) technology and image stabilization technology that uses image sensors.

[0008] OIS technology compensates for movement by changing the path of light. Image shake prevention technology using image sensors compensates for movement using mechanical and electronic methods, with OIS technology being more widely adopted.

[0009] Meanwhile, a zoom actuator is used in a camera module for the zooming function, but friction torque occurs when the lens moves due to the mechanical movement of the actuator. This friction torque causes technical issues such as a decrease in driving force, an increase in power consumption, or a decrease in control characteristics.

[0010] In particular, in order to achieve the best optical characteristics using multiple zoom lens groups in a camera module, the alignment between the multiple lens groups and between the multiple lens groups and the image sensor must be good. However, when decentering (where the spherical center between the lens groups deviates from the optical axis), lens tilt (where the lens tilts), or the central axis of the lens groups and the image sensor are not aligned, the angle of view changes or focus shifts, adversely affecting image quality and resolution.

[0011] Meanwhile, when the separation distance in the area where friction occurs is increased to reduce the friction torque resistance when the lens moves for the zooming function in the camera module, a technical contradiction occurs in that the lens descent or tilt becomes more severe when the zoom movement or zoom movement is reversed.

[0012] On the other hand, the higher the pixel count of an image sensor, the higher the resolution and the smaller the pixel size, but the smaller the pixel size, the less light it can receive at the same time. Therefore, the higher the pixel count of a camera, the slower the shutter speed in a dark environment, and the more severe the image blur caused by camera shake becomes.

[0013] For this reason, the OIS function has recently become essential in order to capture distortion-free images using high-pixel cameras during dark nighttime or video recordings.

[0014] On the other hand, OIS technology is a method of correcting image quality by moving the camera lens or image sensor to correct the optical path. In particular, OIS technology detects camera movement using a gyro sensor and calculates the distance the lens or image sensor should move based on this.

[0015] For example, there are two types of OIS correction methods: lens movement and module tilting. The lens movement method moves only the lens in the camera module to realign the center of the image sensor and the optical axis. On the other hand, the module tilting method moves the entire module including the lens and image sensor.

[0016] In particular, the module tilting method has an advantage in that it has a wider correction range than the lens movement method and can minimize image distortion since the focal length between the lens and the image sensor is fixed.

[0017] Meanwhile, the lens movement method uses a position recognition sensor, such as a Hall sensor, to detect the position and movement of the lens, while the module tilting method uses a photo reflector to detect the movement of the module, but both methods use a gyro sensor to detect the movement of the camera user.

[0018] The OIS controller uses the data sensed by the gyro sensor to predict where the lens or module should move to compensate for the user's movements.

[0019] Recent technological trends demand ultra-slim and ultra-compact camera modules, but there is a problem that it is difficult to realize the OIS function applied to general large cameras due to space constraints for OIS operation in ultra-compact camera modules, and there is a problem that it is difficult to realize an ultra-slim and ultra-compact camera module when OIS operation is applied.

[0020] In addition, with conventional OIS technology, the OIS driver is located on the side of the solid lens assembly within the limited size of the camera module, which limits the size of the lens that can be targeted by the OIS, making it difficult to ensure sufficient light.

[0021] In particular, to achieve the best optical characteristics in a camera module, the alignment between lens groups must be well matched when implementing OIS by lens movement or module tilting. However, with conventional OIS technology, when the spherical center between lens groups deviates from the optical axis (decent) or the lens tilts (tilt), the angle of view changes or the focus deviates, causing problems that adversely affect image quality and resolution.

[0022] In addition, in conventional OIS technology, it is possible to realize AF or Zoom at the same time as driving the OIS, but due to the spatial constraints of the camera module and the position of the driving part in conventional OIS technology, the magnet for OIS and the magnet for AF or Zoom are placed close to each other, causing interference of magnetic fields, which prevents normal OIS driving and causes descent and tilt phenomena.

[0023] In addition, conventional OIS technology requires mechanical drive devices for lens movement and module tilting, resulting in complex structures and high power consumption.

[0024] However, the material described in the sections is merely intended to provide background information for the present disclosure and may not constitute prior art. Summary of the Invention [Problem to be solved by the invention]

[0025] A first embodiment of the present invention seeks to provide an actuator device in which an OIS function is realized by tilting a reflective member.

[0026] Furthermore, the present invention provides an actuator device that ensures stable driving performance of the moving part.

[0027] An object of the second embodiment of the present invention is to provide a lens assembly driving device and a camera module including the same that can minimize the occurrence of descent and tilt conditions and provide the best optical characteristics through rapid and accurate performance testing. [Means for solving the problem]

[0028] The actuator device according to a first embodiment of the present invention includes a housing; a holder disposed within the housing; a reflective member disposed in the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to the holder; and a damper coupled to the mover rigid; the mover rigid may include a protrusion coupled to the housing by the damper.

[0029] The housing may include a groove in which at least a portion of the protrusion is disposed.

[0030] The groove in the housing may be open to the outside of the housing.

[0031] The protrusion of the mover rigid may include a first protruding region protruding from one side and a second protruding region protruding from the other side.

[0032] The groove of the housing may include a first groove in which at least a portion of the first protruding region is disposed and a second groove in which at least a portion of the second protruding region is disposed.

[0033] The protrusion may be located in a central region of the mover rigid.

[0034] The groove of the housing is larger than the protrusion of the mover rigid and can be separated from the protrusion in an initial state and when driven.

[0035] The groove of the housing and the protrusion of the mover rigid can come into contact with each other due to an external impact.

[0036] An actuator device according to a first embodiment of the present invention includes a housing; a holder disposed within the housing; a reflective member disposed in the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to the holder; and a damper coupled to the mover rigid; the mover rigid may include a protrusion coupled to the housing by the damper.

[0037] The actuator device according to a first embodiment of the present invention includes a fixed part including a housing; a moving part that moves relative to the fixed part; a moving plate arranged between the fixed part and the moving part; and a damper arranged between the fixed part and the moving part; and the moving part can include a mover rigid that is adhered to the housing by the damper.

[0038] An actuator device according to a first embodiment of the present invention includes a fixed part; a moving part that moves relative to the fixed part; a moving plate arranged between the fixed part and the moving part; a first magnet arranged on the moving part and having a first surface; a second magnet arranged on the fixed part and having a second surface facing the first surface; a drive part that tilts the moving part; and a damper arranged between the fixed part and the moving part, wherein a central axis of the first magnet is arranged eccentrically to a central axis of the moving plate in a direction perpendicular to the first surface, and an area of ​​the first surface of the first magnet may be different from an area of ​​the second surface of the second magnet.

[0039] The fixed part may include a housing, the moving part may include a holder disposed in the housing, and a mover rigid coupled to the holder and on which the first magnet is disposed, and the damper may be disposed between the mover rigid and the housing.

[0040] The damper may be coupled to the mover rigid and to the housing.

[0041] The actuator device according to a first embodiment of the present invention may include a housing; a holder disposed within the housing; a reflective member disposed in the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to the holder; and a damper connecting the mover rigid and the housing.

[0042] A first portion of the housing may be disposed between the mover rigid and the moving plate.

[0043] The damper may be located at least one of an upper portion and a lower portion of the first portion of the housing.

[0044] The actuator device includes a first magnet arranged on the mover rigid; and a second magnet arranged on the housing and generating a repulsive force with the first magnet, at least a portion of the second magnet being arranged between the first magnet and the moving plate and can be arranged on the opposite side of the moving plate with respect to the first portion of the housing.

[0045] The mover rigid includes a main body portion disposed on the opposite side of the moving plate based on the first portion of the housing, a connecting portion extending from the main body portion and connecting with the holder, and a protrusion protruding from the main body portion, and the damper can connect the protrusion of the mover rigid to the housing.

[0046] The housing includes a groove, at least a portion of the protrusion of the mover rigid is disposed in the groove of the housing, and at least a portion of the damper is disposed in the groove of the housing between the protrusion of the mover rigid and the housing.

[0047] The groove of the housing may include a first groove portion and a second groove portion recessed from the first groove portion, and at least a portion of the damper may be disposed in the second groove portion of the housing.

[0048] The protrusions of the mover rigid may include a first protrusion formed on an upper surface of the body of the mover rigid, and a second protrusion formed on a lower surface of the body of the mover rigid.

[0049] The housing includes a first surface facing the upper surface of the main body portion of the mover rigid and a second surface facing the lower surface of the main body portion of the mover rigid, the housing includes a first groove formed on the first surface of the housing and a second groove formed on the second surface of the housing, at least a portion of the first protrusion of the mover rigid is positioned in the first groove of the housing, and at least a portion of the second protrusion of the mover rigid is positioned in the second groove of the housing.

[0050] The housing includes two protrusions formed on the second surface of the housing, the two protrusions being equidistantly spaced apart in the second groove, and when the body portion of the mover rigid moves downward, the body portion of the mover rigid can come into contact with the two protrusions of the housing.

[0051] The mover rigid may include an adhesive for fixing the mover rigid to the holder, the holder may include a groove and a plurality of protrusions formed within the groove, at least a portion of the coupling portion of the mover rigid may be inserted into the groove, and at least a portion of the adhesive may be disposed between the plurality of protrusions of the holder.

[0052] The actuator device may include a third magnet and a first coil for tilting the holder about a first axis; and a fourth magnet and a second coil for tilting the holder about a second axis perpendicular to the first axis.

[0053] The damper may be viscous. The housing may include a hole, and the mover rigid may be formed as a separate member from the holder and may be coupled to the holder by passing through the hole of the housing.

[0054] The mover rigid assembly may include a plate coupled to the housing to cover the mover rigid, the housing including a groove in which an adhesive is disposed to secure the plate to the housing.

[0055] The mover rigid may be made of a non-magnetic metal. The camera device according to the first embodiment of the present invention may include a printed circuit board; an image sensor disposed on the printed circuit board; an actuator device; and a lens disposed in an optical path formed by the reflective member of the actuator device and the image sensor.

[0056] The optical device according to the first embodiment of the present invention may include a main body; a camera device disposed on the main body; and a display disposed on the main body and configured to output at least one of a video and an image captured by the camera device.

[0057] The first embodiment of the present invention may include a housing including a first portion; a holder disposed within the housing; a reflective member disposed in the holder; a moving plate disposed between the first portion of the housing and the holder; a mover rigid, at least a portion of which is disposed on the opposite side of the moving plate with respect to the first portion of the housing and which is coupled to the holder; a first magnet disposed on the mover rigid; a second magnet disposed in the housing and generating a repulsive force with the first magnet; and a viscous damper disposed between the mover rigid and the housing.

[0058] The mover rigid includes a main body portion disposed on the opposite side of the moving plate with respect to the first portion of the housing, a connecting portion extending from the main body portion and connecting with the holder, and a protrusion protruding from the main body portion; and the damper can connect the protrusion of the mover rigid to the housing.

[0059] The coupling portion may include two coupling portions protruding from both sides of the body portion, and the protrusion portion may include two protrusions protruding from above and below the body portion.

[0060] The device may include grease disposed between the moving plate and the housing.

[0061] An actuator device according to a first embodiment of the present invention may include a housing including a first part; a holder disposed within the housing; a reflective member disposed in the holder; a moving plate disposed between the first part of the housing and the holder; a mover rigid, at least a portion of which is disposed on the opposite side of the moving plate with respect to the first part of the housing and coupled to the holder, and which presses the holder toward the moving plate; a magnet and a coil which tilt the holder; and a damper disposed on the mover rigid.

[0062] A lens driving device according to a second embodiment of the present invention includes a housing; a lens assembly disposed within the housing and including a lens barrel; a first driving unit disposed in the lens assembly; and a second driving unit facing the first driving unit, and an inclined surface having different heights from one end to the other end is disposed on a side of the lens barrel. Effect of the Invention

[0063] According to the first embodiment of the present invention, it is possible to ensure stable driving performance of the moving part.

[0064] Furthermore, by applying a damper, the phase margin can be sufficiently secured, improving the FRA characteristics.

[0065] More specifically, a gel bond that acts as a damper between the housing and the mover rigid is applied to maintain the gain value while securing a phase margin, thereby improving the responsiveness of the actuator.

[0066] According to the second embodiment of the present invention, not only can the optical performance of the lens be easily measured through the inclined surface during the assembly process of the camera module, but also the internal structure of the module can be easily maintained during use. [Brief description of the drawings]

[0067] [Figure 1] 1 is a perspective view of a camera device according to a first embodiment of the present invention. [Diagram 2] 1 is a bottom perspective view of a camera device according to a first embodiment of the present invention. [Diagram 3] 1 is a plan view of a camera device according to a first embodiment of the present invention. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5] FIG. 4 is a cross-sectional view taken along line BB in FIG. [Figure 6] 4 is a cross-sectional view taken along line CC in FIG. 3. [Figure 7] 1 is an exploded perspective view of a camera device according to a first embodiment of the present invention. [Figure 8] 1 is a perspective view of a camera device according to a first embodiment of the present invention from which a cover member is omitted. [Figure 9] 1 is a perspective view of a reflecting member driving device according to a first embodiment of the present invention. [Figure 10] 1 is an exploded perspective view of a reflecting member driving device according to a first embodiment of the present invention. [Figure 11] FIG. 2 is an exploded perspective bottom view of the reflection member driving device according to the first embodiment of the present invention. [Figure 12] 4 is a diagram illustrating a structure related to a moving plate of the reflection member driving device according to the first embodiment of the present invention. [Figure 13] 4 is a diagram illustrating a structure related to a moving plate of the reflection member driving device according to the first embodiment of the present invention. [Figure 14] 1 is a perspective view of a reflection member driving device according to a first embodiment of the present invention, with components such as a moving unit omitted. FIG. [Figure 15] 15 is a perspective view of the reflecting member driving device of FIG. 14 with components such as a board omitted. FIG. [Figure 16] 1 is a perspective view illustrating a fixing portion and related configuration of a reflection member driving device according to a first embodiment of the present invention. [Figure 17] 1 is a perspective view illustrating a state in which a moving part is disposed on a fixed part in a reflection member driving device according to a first embodiment of the present invention. FIG. [Figure 18] 1 is an exploded perspective view illustrating the relative shapes of a mover rigid and a fixed portion of a reflection member driving device according to a first embodiment of the present invention. FIG. [Figure 19] 4 is a perspective view illustrating an arrangement state of a second magnet of a fixing portion of the reflection member driving device according to the first embodiment of the present invention. FIG. [Figure 20] 1 is a perspective view illustrating a coupled state of a holder and a mover rigid of a reflection member driving device according to a first embodiment of the present invention; [Figure 21] 1 is a front view illustrating a holder of a reflection member driving device according to a first embodiment of the present invention. FIG. [Figure 22] 1 is a perspective view illustrating a mover rigid, a first magnet, and a second magnet of a reflection member driving device according to a first embodiment of the present invention. FIG. [Figure 23] 1 is a perspective view illustrating a first magnet, a second magnet, and a driving unit of a reflection member driving device according to a first embodiment of the present invention. FIG. [Figure 24] 1 is a perspective view illustrating a first magnet, a second magnet, and a drive magnet of a reflection member driving device according to a first embodiment of the present invention. FIG. [Diagram 25] 1 is a side view illustrating a first magnet, a second magnet, and a drive magnet of a reflection member driving device according to a first embodiment of the present invention. FIG. [Figure 26] 1 is a cross-sectional view of a reflecting member driving device according to a first embodiment of the present invention. [Figure 27] FIG. 11 is a cross-sectional perspective view of a reflection member driving device according to a modified example. [Figure 28] 1A and 1B are a perspective view and a rear side view illustrating a first magnet and a second magnet of a reflecting member driving device according to a first embodiment of the present invention. [Figure 29]1 is a perspective view illustrating a state in which a moving plate is disposed on a moving part of a reflection member driving device according to a first embodiment of the present invention; [Diagram 30] 4 is a diagram illustrating a tilt around an x-axis of the reflection member driving device according to the first embodiment of the present invention. [Diagram 31] 4 is a diagram illustrating a tilt around an x-axis of the reflection member driving device according to the first embodiment of the present invention. [Diagram 32] 4 is a diagram illustrating a tilt around a y-axis of the reflection member driving device according to the first embodiment of the present invention. [Diagram 33] 4 is a diagram illustrating a tilt around a y-axis of the reflection member driving device according to the first embodiment of the present invention. [Diagram 34] 4 is a diagram illustrating a tilt around a y-axis of the reflection member driving device according to the first embodiment of the present invention. [Diagram 35] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention. [Diagram 36] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention, with a portion of the configuration thereof omitted. [Figure 37] 37 is a perspective view of the lens driving device in the state shown in FIG. 36, seen from another direction. [Figure 38] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention, with a portion of the configuration thereof omitted. [Figure 39] 1 is a perspective view of a lens driving device according to a first embodiment of the present invention, with components such as a substrate and coils omitted. [Diagram 40] 40 is a perspective view of the lens driving device shown in FIG. 39 with the first lens and related components omitted. FIG. [Diagram 41] 1A and 1B are a perspective view and a partially enlarged view of a portion of a lens driving device according to a first embodiment of the present invention; [Diagram 42] 4 is a diagram for explaining an arrangement structure of coils and sensors of the lens driving device according to the first embodiment of the present invention. [Diagram 43]40 is a perspective view of the lens driving device shown in FIG. 39 with the second housing omitted. FIG. [Diagram 44] 44 is a perspective view of the lens driving device shown in FIG. 43 with the guide rails omitted. FIG. [Diagram 45] 1 is an enlarged view of a portion of a lens driving device according to a first embodiment of the present invention. [Diagram 46] 1 is a perspective view of a first moving portion, a second moving portion and related configurations of a lens driving device according to a first embodiment of the present invention. [Figure 47] 2 is a perspective view of a second moving unit and related configuration of the lens driving device according to the first embodiment of the present invention. FIG. [Figure 48] 1 is an exploded perspective view of a lens driving device according to a first embodiment of the present invention. [Figure 49] FIG. 2 is a perspective view of a second housing of the lens driving device according to the first embodiment of the present invention. [Figure 50] 1 is an exploded perspective view of a portion of a lens driving device according to a first embodiment of the present invention; [Figure 51] 1 is an exploded perspective view of a portion of a lens driving device according to a first embodiment of the present invention; [Figure 52] 1 is a cross-sectional view of a lens driving device according to a first embodiment of the present invention. [Figure 53] 4 is a diagram for explaining implementation of a zoom function and an autofocus function of the lens driving device according to the first embodiment of the present invention. [Figure 54] 4 is a diagram for explaining implementation of a zoom function and an autofocus function of the lens driving device according to the first embodiment of the present invention. [Figure 55] 4 is a diagram for explaining implementation of a zoom function and an autofocus function of the lens driving device according to the first embodiment of the present invention. [Figure 56] 1 is a perspective view of a partial configuration of a camera device according to a first embodiment of the present invention. [Figure 57] 1 is an exploded perspective view of an image sensor, a filter, and related components of a camera device according to a first embodiment of the present invention. FIG. [Figure 58]1 is a front perspective view of an optical apparatus according to a first embodiment of the present invention; [Figure 59] 1 is a perspective view of the rear surface of an optical apparatus according to a first embodiment of the present invention. [Figure 60] FIG. 11 is a perspective view of a camera module according to a second embodiment of the present invention. [Figure 61] FIG. 61 is an exploded perspective view of the cover in FIG. 60. [Figure 62] FIG. 11 is a plan view illustrating one side of a camera module in accordance with a second embodiment of the present invention. [Figure 63] FIG. 63 is a cross-sectional view taken along the line BB' in FIG. 62. [Figure 64] 63 is a cross-sectional view illustrating the line A-A' in FIG. 62. [Figure 65] FIG. 11 is a first exploded perspective view of a camera module according to a second embodiment of the present invention. [Figure 66] This is a drawing showing Figure 63 from another angle. [Figure 67] FIG. 11 is a second exploded perspective view of the camera module according to the second embodiment of the present invention. [Figure 68] This is a drawing showing Figure 67 from another angle. [Figure 69] FIG. 11 is a perspective view of a guide portion according to a second embodiment of the present invention. [Figure 70] FIG. 13 is an exploded perspective view of the second lens group and the third lens group according to the second embodiment of the present invention. [Figure 71] FIG. 11 is a perspective view of a substrate according to a second embodiment of the present invention. [Figure 72] 11 is a perspective view illustrating an installation state of a second lens assembly and a third lens assembly in a housing according to a second embodiment of the present invention. FIG. [Figure 73] FIG. 11 is a cross-sectional view of a protrusion according to a second embodiment of the present invention. [Figure 74] 13 is a view illustrating a modified example of an inclined surface formed in a camera module according to a second embodiment of the present invention. [Figure 75] 13 is a view illustrating a modified example of an inclined surface formed in a camera module according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0068] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0069] However, the technical concept of the present invention is not limited to some of the embodiments described, but can be realized in various different forms, and one or more of the components of the embodiments can be selectively combined or substituted for each other within the scope of the technical concept of the present invention.

[0070] Furthermore, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that are commonly understood by a person having ordinary knowledge in the technical field to which the present invention belongs, unless otherwise clearly and specifically defined and described, and commonly used terms such as predefined terms may be interpreted in light of the contextual meaning of the relevant art.

[0071] Furthermore, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0072] In this specification, unless otherwise specified in the context, the singular form can also include the plural form, and when it is described as "A and (and) at least one (or more) of B and C," it can include one or more of all combinations of A, B, and C.

[0073] In addition, in describing components of the embodiments of the present invention, terms such as 1st, 2nd, A, B, a, b, etc. are used. These terms are used only to distinguish the components from other components, and do not limit the essence, order, or sequence of the components.

[0074] In addition, when a component is described as being "coupled," "coupled," or "connected" to another component, it can include not only cases where the component is directly "coupled," "coupled," or "connected" to the other component, but also cases where the component is "coupled," "coupled," or "connected" by another component between the component and the other component.

[0075] In addition, when described as being formed or disposed "above" or "below" each component, "above" or "below" includes not only the case where two components are in direct contact with each other, but also the case where one or more additional components are formed or disposed between the two components. In addition, when expressed as "above" or "below," it can include not only the upper direction but also the lower direction based on one component.

[0076] The term "optical axis direction" used below is defined as the optical axis direction of each lens group coupled to the lens driving device.

[0077] A reflection member driving device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0078] FIG. 9 is a perspective view of a reflecting member driving device according to the first embodiment of the present invention, FIG. 10 is an exploded perspective view of a reflecting member driving device according to the first embodiment of the present invention, FIG. 11 is an exploded perspective view of the bottom of a reflecting member driving device according to the first embodiment of the present invention, FIGS. 12 and 13 are drawings for explaining a moving plate-related structure of a reflecting member driving device according to the first embodiment of the present invention, FIG. 14 is a perspective view of a reflecting member driving device according to the first embodiment of the present invention with components such as a moving part omitted, and FIG. 15 is a perspective view of the reflecting member driving device of FIG. 14 with components such as a board omitted, FIG. 16 is a perspective view illustrating the fixed part and related configuration of the reflective member driving device according to the first embodiment of the present invention, FIG. 17 is a perspective view illustrating a state in which a moving part is arranged on a fixed part in the reflective member driving device according to the first embodiment of the present invention, FIG. 18 is an exploded perspective view illustrating the relative shape of the mover rigid and the fixed part of the reflective member driving device according to the first embodiment of the present invention, FIG. 19 is a perspective view illustrating the arrangement state of a second magnet of the fixed part of the reflective member driving device according to the first embodiment of the present invention, and FIG. 20 is a perspective view illustrating the holder and mover rigid of the reflective member driving device according to the first embodiment of the present invention. FIG. 21 is a front view illustrating a holder of the reflective member driving device according to the first embodiment of the present invention; FIG. 22 is a perspective view illustrating the mover rigid, first magnet, and second magnet of the reflective member driving device according to the first embodiment of the present invention; FIG. 23 is a perspective view illustrating the first magnet, second magnet, and driving unit of the reflective member driving device according to the first embodiment of the present invention; FIG. 24 is a perspective view illustrating the first magnet, second magnet, and driving magnet of the reflective member driving device according to the first embodiment of the present invention; and FIG. 2 is a side view illustrating the first magnet, the second magnet and the driving magnet of the reflective member driving device according to the first embodiment of the present invention, FIG. 26 is a cross-sectional view of the reflective member driving device according to the first embodiment of the present invention, FIG. 27 is a cross-sectional oblique view of a reflective member driving device according to a modified example, FIG. 28 is an oblique view (a) and a rear side view (b) illustrating the first magnet and the second magnet of the reflective member driving device according to the first embodiment of the present invention, and FIG. 29 is an oblique view illustrating the state in which a moving plate is arranged in the moving section of the reflective member driving device according to the first embodiment of the present invention.

[0079] The reflective member driving device 1000 can perform an optical image stabilization (OIS) function. The reflective member driving device 1000 can perform an image stabilization function. The reflective member driving device 1000 can move the reflective member 1220. The reflective member driving device 1000 can tilt the reflective member 1220. The reflective member driving device 1000 can tilt the reflective member 1220 about two axes. The reflective member driving device 1000 can tilt the reflective member 1220 about an x-axis and a y-axis. The x-axis and the y-axis may be perpendicular to each other.

[0080] The reflective member driving device 1000 may be a reflective member actuator. The reflective member driving device 1000 may be an OIS actuator. The reflective member driving device 1000 may be an OIS driving device. The reflective member driving device 1000 may be a prism driving device. The reflective member driving device 1000 may be an actuator. The reflective member driving device 1000 may be an actuator device. The reflective member driving device 1000 may be an actuator driving device. The reflective member driving device 1000 may be a tilting device.

[0081] The reflective member driving device 1000 may include a fixed part 1100. The fixed part 1100 may be a part that is fixed relative to the moving part 1200 during movement. The fixed part 1100 may accommodate at least a part of the moving part 1200. The fixed part 1100 may be disposed outside the moving part 1200.

[0082] The reflection member driving device 1000 may include a housing 1110. The fixing part 110 may include a housing 1110. The housing 1110 may be disposed outside the holder 1210. The housing 1110 may accommodate at least a portion of the holder 1210. The housing 1110 may include an opening or a hole for ensuring a light path in an upper plate and any one of the side plates. The housing 1110 may include an upper plate, a lower plate, and a plurality of side plates.

[0083] The housing 1110 may include a first portion 1111. The first portion 1111 may be formed on a side plate of the housing 1110. The moving plate 1300 may be disposed in the first portion 1111. The first portion 1111 may be disposed between the holder 1210 and the mover rigid 1230. The first portion 1111 may be disposed between the mover rigid 1230 and the moving plate 1300. The second magnet 1120 may be disposed in the first portion 1111. The moving plate 1300 may be disposed on one side of the first portion 1111, and the second magnet 1120 may be disposed on the other side of the first portion 1111. A portion of the housing 1110 may be disposed between the moving plate 1300 and the mover rigid 1230.

[0084] The housing 1110 may include a second part 1112. The second part 1112 may be disposed on the holder 1210. The second part 1112 may contact the holder 1210 when the holder 1210 moves upward. The second part 1112 may overlap with the holder 1210 in the moving direction of the holder 1210. The second part 1112 may be an upper plate of the housing 1110.

[0085] The housing 1110 may include a third portion 1113. The third portion 1113 may be disposed below the holder 1210. The third portion 1113 may contact the holder 1210 when the holder 1210 moves downward. The third portion 1113 may overlap with the holder 1210 in the moving direction. The third portion 1113 may be a lower plate of the housing 1110.

[0086] The housing 1110 may include a hole 1114. The hole 1114 may be a mover rigid passing hole. The hole 1114 may be formed in a side plate of the housing 1110. The hole 1114 may be formed in the first part 1111 of the housing 1110. The mover rigid 1230 may be disposed in the hole 1114. The mover rigid 1230 may be disposed to pass through the hole 1114. The hole 1114 may be formed to be larger than the movement space of the mover rigid 1230 so as not to interfere with the mover rigid 1230. The housing 1110 may include two holes 1114 into which the mover rigid 1230 is inserted.

[0087] The housing 1110 may include a groove 1115. The groove 1115 may be a moving plate first protrusion receiving groove. The first protrusion 1310 of the moving plate 1300 may be disposed in the groove 1115. The groove 1115 may receive at least a portion of the moving plate 1300. The groove 1115 may restrict the movement of the first protrusion 1310 of the moving plate 1300, except for rotation. The groove 1115 may include an inclined surface that contacts the first protrusion 1310 of the moving plate 1300. The inclined surface may include a plurality of inclined surfaces.

[0088] The housing 1110 may include a plurality of grooves 1115 in which the plurality of first protrusions 1310 are disposed. The plurality of grooves 1115 of the housing 1110 may include a first groove 1115-1 that is in four-point contact with one of the plurality of first protrusions 1310, and a second groove 1115-2 that is in two-point contact with another of the plurality of first protrusions 1310.

[0089] The groove 1115 may include a first groove 1115-1. The first groove 1115-1 may be a four-point contact groove. The first groove 1115-1 may contact one of the two first protrusions 1310 of the moving plate 1300 at four points. As a result, the first groove 1115-1 of the housing 1110 may restrict the movement of one of the first protrusions 1310 of the moving plate 1300 in four directions, up, down, left, and right, excluding rotation.

[0090] The groove 1115 may include a second groove 1115-2. The second groove 1115-2 may be a two-point contact groove. The second groove 1115-2 may contact the remaining one of the two first protrusions 1310 of the moving plate 1300 at two points. This allows the second groove 1115-2 of the housing 1110 to restrict the movement of the remaining one of the first protrusions 1310 of the moving plate 1300 in two directions. For example, the second groove 1115-2 of the housing 1110 may restrict the movement of the first protrusion 1310 of the moving plate 1300 in the up-down direction and not in the left-right direction.

[0091] The housing 1110 may include a protrusion 1116. The protrusion 1116 may be coupled to the lens driving device 2000. The protrusion 1116 may be formed on a side plate of the housing 1110. The protrusion 1116 may be formed on a side of the housing 1110 facing the lens driving device 2000. The protrusion 1116 may include a trapezoidal cross section. The protrusion 1116 may be coupled to the housing 2110 of the lens driving device 2000. The protrusion 1116 may be inserted into a first groove 2111 of the housing 2110 of the lens driving device 2000. The protrusion 1116 may be coupled to the housing 2110 of the lens driving device 2000 by an adhesive.

[0092] The housing 1110 may include a protrusion 1117. The protrusion 1117 may be coupled to the lens driving device 2000. The protrusion 1117 may be formed on a side plate of the housing 1110. The protrusion 1117 may be formed on a side of the housing 1110 facing the lens driving device 2000. The protrusion 1117 may include a circular cross section. The protrusion 1117 may be coupled to the housing 2110 of the lens driving device 2000. The protrusion 1117 may be inserted into the second groove 2112 of the housing 2110 of the lens driving device 2000. The protrusion 1117 may be coupled to the housing 2110 of the lens driving device 2000 by an adhesive.

[0093] The housing 1110 may include a protrusion 1118. The protrusion 1118 may be a mover rigid contact protrusion. The protrusion 1118 may be formed on a second surface of the housing 1110. The protrusion 1118 may contact the mover rigid 1230. The protrusion 1118 may be formed on an inner circumferential surface of a hole 1114 of the housing 1110 through which the mover rigid 1230 passes. The protrusion 1118 may be formed to contact at least one of a lower surface and an upper surface of the mover rigid 1230 when the mover rigid 1230 moves. The protrusion 1118 may prevent the mover rigid 1230 from being displaced too far from its original position and being removed.

[0094] The protrusion 1118 may include multiple protrusions. The protrusion 1118 may include two protrusions. The two protrusions may be spaced apart at the same distance as a second groove disposed below in the groove 1119 of the housing 1110. When the body portion of the mover rigid 1230 moves downward, the body portion of the mover rigid 1230 may come into contact with the two protrusions 1118 of the housing 1110.

[0095] The housing 1110 may include a groove 1119. At least a part of the protrusion 1231 may be disposed in the groove 1119. A part of the protrusion 1231 may be disposed in the groove 1119. The groove 1119 may be open to the outside of the housing 1110. The groove 1119 may be larger than the protrusion 1231 of the mover rigid 1230. The groove 1119 may be separated from the protrusion 1231 of the mover rigid 1230. In an initial state in which no power is applied to the driving unit 1400, the groove 1119 may be separated from the protrusion 1231 of the mover rigid 1230. Even when power is applied to the driving unit 1400 and the driving unit 1400 is driven, the groove 1119 may be separated from the protrusion 1231 of the mover rigid 1230. The groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 may come into contact with each other due to an external impact. That is, the groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 do not come into contact with each other within the normal driving range of the mover rigid 1230, but can come into contact with each other when the normal driving range is deviated from due to an impact. The groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 can function as a stopper when an impact occurs.

[0096] The groove 1119 may include a first groove portion and a second groove portion recessed from the first groove portion. The groove 1119 may be formed as a two-stage groove. The groove 1119 may have a double groove shape. The damper 1500 may be disposed in the second groove portion. The second groove portion may increase the contact area between the damper 1500 and the housing 1110. The second groove portion may prevent the damper 1500 from flowing.

[0097] The groove 1119 may include a plurality of grooves. The groove 1119 may include a first groove in which at least a portion of the first protruding region of the mover rigid 1230 is disposed, and a second groove in which at least a portion of the second protruding region is disposed. The housing 1110 may include a first surface that faces an upper surface of the main body of the mover rigid 1230. The housing 1110 may include a second surface that faces a lower surface of the main body of the mover rigid 1230. The housing 1110 may include a first groove formed in the first surface of the housing 1110, and a second groove formed in the second surface of the housing 1110.

[0098] The reflection member driving device 1000 may include a second magnet 1120. The fixed part 1100 may include the second magnet 1120. The second magnet 1120 may be disposed in the fixed part 1100. The second magnet 1120 may be a second repulsive magnet. The second magnet 1120 may be disposed in the housing 1110. The second magnet 1120 may be disposed in the first part 1111 of the housing 1110. The second magnet 1120 may be disposed on the opposite side of the moving plate 1300 with respect to the first part 1111 of the housing 1110. The second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300. The second magnet 1120 may be disposed to face the first magnet 1240. The second magnet 1120 may generate a repulsive force with the first magnet 1240. The second magnet 1120 may be disposed so as to generate a repulsive force with the first magnet 1240. The second magnet 1120 may be disposed so as to face the first magnet 1240 with the same polarity. The second magnet 1120 may push the first magnet 1240.

[0099] At least a portion of the second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300. The second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300. The center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240.

[0100] In the first embodiment of the present invention, the driving unit 1400 can tilt the moving unit 1200 based on the mutually perpendicular x-axis and y-axis of the moving plate 1300. In this case, a horizontal axis passing through the center of the second magnet 1120 in the direction of the y-axis may be disposed eccentrically with the x-axis of the moving plate 1300. The horizontal axis may be parallel to the x-axis.

[0101] In a direction passing through the x-axis, the center of the second magnet 1120 may not be eccentric with the y-axis. When viewed in a direction from the moving plate 1300 toward the first magnet 1240, the center of the second magnet 1120 may be disposed to coincide with the y-axis. The center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240. The center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240. The center of gravity of the second magnet 1120 may be disposed at the same height as the center of gravity of the first magnet 1240.

[0102] The second magnet 1120 can include a second face disposed opposite the first face of the second magnet 1120. The first magnet 1240 can include a first face facing the second face of the second magnet 1120. The first face of the first magnet 1240 can have the same polarity as the second face of the second magnet 1120.

[0103] The second magnet 1120 may be arranged so as not to overlap with the first drive magnet 1411 in the direction in which the first surface of the first drive magnet 1411 faces. The second magnet 1120 may be arranged so as not to overlap with the first drive magnet 1411 in the direction in which the first surface of the second magnet 1120 faces.

[0104] The reflection member driving device 1000 may include a substrate 1130. The fixed part 1100 may include a substrate 1130. The substrate 1130 may be a flexible printed circuit board (FPCB). The substrate 1130 may be a flexible printed circuit board. The substrate 1130 may be disposed in the housing 1110.

[0105] The reflection member driving device 1000 may include a suspension (SUS) 1140. The fixing part 1100 may include a suspension 1140. The suspension 1140 may be disposed on the substrate 1130. The suspension 1140 may be disposed on an outer surface of the substrate 1130. The suspension 1140 may reinforce the strength of the substrate 1130.

[0106] The reflection member driving device 1000 may include a gyro sensor 1150. The fixed part 1100 may include a gyro sensor 1150. The gyro sensor 1150 may detect shaking of the camera device 10. The shaking detected by the gyro sensor 1150 may be offset through an image stabilization function. The gyro sensor 1150 may be disposed on the substrate 1130. The gyro sensor 1150 may be disposed on an outer surface of the substrate 1130.

[0107] The reflection member driving device 1000 may include a plate 1160. The fixing part 1100 may include a plate 1160. The plate 1160 may be coupled to the housing 1110. The plate 1600 may cover the mover rigid 1230. The plate 1600 may cover the mover rigid 1230. The plate 1160 may be arranged to cover an opened portion of the housing 1110. The plate 1160 may be arranged to close an opened front of the housing 1110. The plate 1160 may be formed of a metal plate. The housing 1110 may include a groove in which an adhesive for fixing the plate 1160 to the housing 1110 is arranged.

[0108] The reflecting member driving device 1000 may include a driver IC 1170. The fixed part 1100 may include the driver IC 1170. The driver IC 1170 may be disposed on the substrate 1130. The driver IC 1170 may be electrically connected to the first coil 1412 and the second coil 1422. The driver IC 1170 may supply current to the first coil 1412 and the second coil 1422. The driver IC 1170 may control at least one of the voltage and the current applied to the first coil 1412 and the second coil 1422, respectively. The driver IC 1170 may be electrically connected to the Hall sensors 1413 and 1423. The driver IC 1170 may feedback control the voltage and the current applied to the first coil 1412 and the second coil 1422 through the position of the reflecting member 1220 sensed by the Hall sensors 1413 and 1423.

[0109] The reflective member driving device 1000 may include a moving part 1200. The moving part 1200 may be a moving part. The moving part 1200 may be a moving part. The moving part 1200 may be a movable part. The moving part 1200 may be movable relative to the fixed part 1100. The moving part 1200 may be tilted relative to the fixed part 1100. The moving part 1200 may be disposed within the fixed part 1100. At least a part of the moving part 1200 may be separated from the fixed part 1100.

[0110] In the first embodiment of the present invention, in an initial state where no current is applied to the driving part 1400 , the moving part 1200 can come into contact with the fixed part 1100 .

[0111] The reflective member driving device 1000 may include a holder 1210. The moving unit 1200 may include a holder 1210. The holder 1210 may be disposed in the housing 1110. The holder 1210 may be movable relative to the housing 1110. The holder 1210 may be tilted relative to the housing 1110. At least a portion of the holder 1210 may be separated from the housing 1110. The holder 1210 may contact the housing 1110.

[0112] In the first embodiment of the present invention, the holder 1210 can move between the second part 1112 and the third part 1113 of the housing 1110 by the first actuator 1410. In an initial state where no current is applied to the first actuator 1410, the holder 1210 can contact the housing 1110. In the initial state, the holder 1210 can contact the inner surface of the housing 1110 adjacent to the incident surface of the reflective member 1220. When a current is applied to the actuator 1400, the holder 1210 can be separated from the inner surface of the housing 1110 and tilted based on the first axis of the moving plate 1300.

[0113] The holder 1210 may include a groove 1211. The groove 1211 may be a moving plate second protrusion receiving groove. The second protrusion 1320 of the moving plate 1300 may be disposed in the groove 1211. The groove 1211 may receive at least a portion of the moving plate 1300. The groove 1211 may restrict the movement of the second protrusion 1320 of the moving plate 1300, except for rotation. The groove 1211 may include an inclined surface that contacts the second protrusion 1320 of the moving plate 1300. The inclined surface may include a plurality of inclined surfaces.

[0114] The holder 1210 may include a plurality of grooves 1211 in which the plurality of second protrusions 1320 are disposed. The plurality of grooves 1211 of the holder 1210 may include a first groove 1211-1 that is in four-point contact with one of the plurality of second protrusions 1320, and a second groove 1211-2 that is in two-point contact with another of the plurality of second protrusions 1320.

[0115] The groove 1211 may include a first groove 1211-1. The first groove 1211-1 may be a four-point contact groove. The first groove 1211-1 may contact one of the two second protrusions 1320 of the moving plate 1300 at four points. As a result, the first groove 1211-1 of the holder 1210 may restrict the movement of one of the second protrusions 1320 of the moving plate 1300 in four directions, up, down, left, and right, excluding rotation.

[0116] The groove 1211 may include a second groove 1211-2. The second groove 1211-2 may be a two-point contact groove. The second groove 1211-2 may be a two-point contact groove. The second groove 1211-2 may contact the remaining one of the two second protrusions 1320 of the moving plate 1300 at two points. This allows the second groove 1211-2 of the holder 1210 to restrict the movement of the remaining one of the second protrusions 1320 of the moving plate 1300 in two directions. For example, the second groove 1211-2 of the holder 1210 may restrict the movement of the second protrusion 1320 of the moving plate 1300 in the left-right direction and not restrict the movement in the up-down direction.

[0117] The holder 1210 may include a first protrusion 1212. The first protrusion 1212 may be an upper stopper. The first protrusion 1212 may be formed on an upper surface of the holder 1210. The first protrusion 1212 may protrude from the upper surface of the holder 1210. The first protrusion 1212 may contact the housing 1110 when the holder 1210 moves upward. The first protrusion 1212 may contact the second part 1112 of the housing 1110 when the holder 1210 moves upward.

[0118] The holder 1210 may include a second protrusion 1213. The second protrusion 1213 may be a lower stopper. The second protrusion 1213 may be formed on a lower surface of the holder 1210. The second protrusion 1213 may protrude from the lower surface of the holder 1210. The second protrusion 1213 may contact the housing 1110 when the holder 1210 moves downward. The second protrusion 1213 may contact the third portion 1113 of the housing 1110 when the holder 1210 moves downward.

[0119] In the first embodiment of the present invention, in an initial state, the first protrusion 1212 of the holder 1210 may contact the second portion 1112 of the housing 1110. When a current is applied to the first actuator 1410 or an impact is applied, the second protrusion 1213 of the holder 1210 may come into contact with the third portion 1113 of the housing 1110.

[0120] The holder 1210 may include an adhesive receiving groove 1214. The adhesive receiving groove 1214 may receive an adhesive that secures the reflective member 1220 to the holder 1210. The adhesive receiving groove 1214 may be formed on a surface that contacts the reflective member 1220. The adhesive receiving groove 1214 may have an adhesive disposed therein.

[0121] The holder 1210 may include a groove 1215. The groove 1215 may be a separation groove that provides a separation space between the holder 1210 and the reflective member 1220. The groove 1215 may be formed on a surface that contacts the reflective member 1220. The groove 1215 may reduce a contact area between the holder 1210 and the reflective member 1220.

[0122] The holder 1210 may include a groove 1216. The groove 1216 may be a lightening groove. The groove 1216 may be formed in the center of the holder 1210. The groove 1216 may reduce the weight of the holder 1210.

[0123] The holder 1210 may include a magnet accommodating groove 1217. Driving magnets 1411 and 1421 may be disposed in the magnet accommodating groove 1217. The magnet accommodating groove 1217 may be formed in a shape corresponding to the driving magnets 1411 and 1421. The magnet accommodating groove 1217 may be formed to be recessed in the lower surface of the holder 1210. The magnet accommodating groove 1217 may be formed on the lower surface and both side surfaces of the holder 1210. The magnet accommodating groove 1217 may include a plurality of magnet accommodating grooves. The magnet accommodating groove 1217 may include a first magnet accommodating groove that accommodates the first driving magnet 1411 and the yoke 1414. The magnet accommodating groove 1217 may include a second magnet accommodating groove that accommodates the second driving magnet 1421 and the yoke 1424.

[0124] The holder 1210 may include a groove 1218. The groove 1218 may be a mover rigid receiving groove. The coupling portion 1232 of the mover rigid 1230 may be disposed in the groove 1218. The groove 1218 may be formed in a shape corresponding to the coupling portion 1232 of the mover rigid 1230. The groove 1218 may include a groove in which an adhesive for fixing the coupling portion 1232 of the mover rigid 1230 to the holder 1210 is received. The holder 1210 may include a plurality of protrusions formed in the groove 1218. At least a portion of the coupling portion 1232 of the mover rigid 1230 may be inserted into the groove 1218. The reflective member driving device 1000 may include an adhesive for fixing the mover rigid 1230 to the holder 1210. At least a portion of the adhesive may be disposed between the plurality of protrusions formed in the groove 1218 of the holder 1210. This can improve the bonding strength between the mover rigid 1230 and the holder 1210.

[0125] The holder 1210 may include a side stopper 1219. The side stopper 1219 may be formed on both sides of the holder 1210. The side stopper 1219 may protrude from a side surface of the holder 1210. The side stopper 1219 may contact the housing 1110 when the holder 1210 moves laterally. The side stopper 1219 may contact a side plate of the housing 1110 when the holder 1210 moves laterally.

[0126] The reflection member driving device 1000 may include a reflection member 1220. The moving unit 1200 may include a reflection member 1220. The reflection member 1220 may be disposed in the holder 1210. The reflection member 1220 may be coupled to the holder 1210. The reflection member 1220 may be fixed to the holder 1210. The reflection member 1220 may be fixed to the holder 1210 by an adhesive. The reflection member 1220 may move integrally with the holder 1210. The reflection member 1220 may change the path of light. The reflection member 1220 may reflect light. The reflection member 1220 may include a prism. The reflection member 1220 may include a mirror. The reflection member 1220 may be formed in a triangular prism shape. An angle between the path of light incident on the reflection member 1220 and the path of light emitted therefrom may be 90 degrees.

[0127] The reflection member driving device 1000 may include a mover rigid 1230. The moving part 1200 may include a mover rigid 1230. The mover rigid 1230 may be coupled to the holder 1210. The mover rigid 1230 may be formed as a separate member from the holder 1210. The mover rigid 1230 may be coupled to the holder 1210 by passing through a hole 1114 of the housing 1110. The mover rigid 1230 may be formed of a non-magnetic metal. A first magnet 1240 and a second magnet 1120 may be disposed between the mover rigid 1230 and the holder 1210. The first magnet 1240 and the second magnet 1120 may be disposed so that the same polarities face each other and may be pushed outward. The first magnet 1240 fixed to the housing 1110 may push the second magnet 1120 outward. The mover rigid 1230 to which the second magnet 1120 is fixed may also be pressed outward due to the repulsive force of the first magnet 1240. The holder 1210 to which the mover rigid 1230 is fixed may also be pressed outward. This allows the holder 1210 to press the moving plate 1300 against the housing 1110. This allows the moving plate 1300 to be positioned between the holder 1210 and the housing 1110 without being removed.

[0128] The mover rigid 1230 may include a protrusion 1231. The protrusion 1231 may extend from a body portion of the mover rigid 1230. The protrusion 1231 may be coupled to the housing 1110 by a damper 1500. The protrusion 1231 may be disposed in a central region of the mover rigid 1230. The protrusion 1231 may be formed in the central region of the mover rigid 1230. The protrusion 1231 may protrude from an upper surface of the body portion of the mover rigid 1230. The protrusion 1231 may contact the housing 1110 when the mover rigid 1230 moves.

[0129] The protrusion 1231 may include a plurality of protrusions. The protrusion 1231 of the mover rigid 1230 may include a first protrusion formed on an upper surface of the body of the mover rigid 1230. The protrusion 1231 may include a second protrusion formed on a lower surface of the body of the mover rigid 1230. At least a portion of the first protrusion of the mover rigid 1230 may be disposed in a first groove of the housing 1110. At least a portion of the second protrusion of the mover rigid 1230 may be disposed in a second groove of the housing 1110. The protrusion 1231 may include a first protrusion region protruding to one side and a second protrusion region protruding to the other side. Each of the first and second protrusion regions may be referred to as a protrusion.

[0130] The mover rigid 1230 may include a main body. The main body may be disposed on the opposite side of the moving plate 1300 with respect to the first portion 1111 of the housing 1110. The mover rigid 1230 may include two coupling portions 1232 protruding from both sides of the main body. The mover rigid 1230 may include two protrusions 1231 protruding from above and below the main body.

[0131] The mover rigid 1230 may include a coupling portion 1232. The coupling portion 1232 may be a leg portion. The coupling portion 1232 may extend from a body portion of the mover rigid 1230. The coupling portion 1232 may pass through a hole 1114 of the housing 1110. The coupling portion 1232 may be coupled to the holder 1210. The coupling portion 1232 may be fixed to the holder 1210 by an adhesive. At least a portion of the coupling portion 1232 may be inserted into a groove 1218 of the holder 1210.

[0132] The reflection member driving device 1000 may include a first magnet 1240. The moving unit 1200 may include the first magnet 1240. The first magnet 1240 may be disposed in the moving unit 1200. The first magnet 1240 may be a first repulsive magnet. The first magnet 1240 may be disposed in the mover rigid 1230. The first magnet 1240 may be disposed in a body of the mover rigid 1230. The first magnet 1240 may be disposed to face the second magnet 1120. The first magnet 1240 may be disposed to generate a repulsive force with the second magnet 1120. The first magnet 1240 may be disposed to face the second magnet 1120 with the same polarity. The first magnet 1240 may push out the second magnet 1120.

[0133] In the first embodiment of the present invention, the central axis of the first magnet 1240 may be disposed eccentrically with respect to the central axis of the moving plate 1300 based on the first optical axis. In this case, the first optical axis may be the z-axis. The first optical axis may be an axis perpendicular to the sensor surface of the image sensor 3400. The first optical axis may be the optical axis of a lens group disposed adjacent to the image sensor 3400.

[0134] As shown in FIG. 26, the horizontal central axis A of the first magnet 1240 and the second magnet 1120 may be eccentrically disposed relative to the horizontal central axis B of the moving plate 1300 to have a gap G in the vertical direction.

[0135] When viewed in a direction from the moving plate 1300 towards the first magnet 1240 , the center of the first magnet 1240 may be disposed eccentrically with the center of the moving plate 1300 .

[0136] Based on the facing surface, the horizontal axis passing through the central axis of the first magnet 1240 may be offset in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the second optical axis perpendicular to the first optical axis. In this case, the horizontal axis may be the x-axis. The horizontal axis may be arranged in the horizontal direction. The second optical axis may be the y-axis. The second optical axis may be an axis parallel to the sensor surface of the image sensor 3400. The second optical axis may be arranged in the vertical direction. Based on the facing surface, the horizontal axis meeting or contacting the central axis of the first magnet 1240 may be offset in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the second optical axis perpendicular to the first optical axis. The center of the first magnet 1240 may be arranged to be offset vertically with respect to the center of the moving plate 1300.

[0137] Based on the facing surfaces, the vertical axis passing through the central axis of the first magnet 1240 may not be eccentric in the direction of the vertical axis and horizontal axis passing through the central axis of the moving plate 1300. In this case, the horizontal axis may be the x-axis. The horizontal axis may be arranged in the horizontal direction. The second optical axis may be the y-axis. The second optical axis may be an axis parallel to the sensor surface of the image sensor 3400. The second optical axis may be arranged in the vertical direction. The center of the first magnet 1240 may be arranged so as not to be eccentric in the horizontal direction with respect to the center of the moving plate 1300.

[0138] Based on the facing surfaces, a horizontal line passing through the center of first magnet 1240 may be vertically offset from a horizontal line passing through the center of moving plate 1300. Based on the facing surfaces, a vertical line passing through the center of first magnet 1240 may not be horizontally offset from a vertical line passing through the center of moving plate 1300.

[0139] The transverse axis of the first magnet 1240 may be disposed higher than the transverse axis of the moving plate 1300. In a variant, the transverse axis of the first magnet 1240 may be disposed lower than the transverse axis of the moving plate 1300.

[0140] The first magnet 1240 and the second magnet 1120 may be disposed between the mover rigid 1230 and the moving plate 1300 .

[0141] The size of the first magnet 1240 may be different from the size of the second magnet 1120. The first magnet 1240 may be formed to have a different size from the second magnet 1120. The size of the first magnet 1240 may be larger than the size of the second magnet 1120. The first magnet 1240 may be formed to be larger than the second magnet 1120.

[0142] The area of ​​the first surface of the first magnet 1240 may be larger than the area of ​​the second surface of the second magnet 1120 facing the first surface. The first surface and the second surface are arbitrary, and one of the two may be called the first surface and the other may be called the second surface, or both may be called the first surface. The first magnet 1240 may include a first surface. The second magnet 1120 may include a first surface facing the first surface of the first magnet 1240.

[0143] The area of ​​the first face of the first magnet 1240 may be larger than the area of ​​the first face of the second magnet 1120 .

[0144] The first surface of the first magnet 1240 may include a first edge. The first surface of the second magnet 1120 may include a first edge disposed in a direction corresponding to the first edge of the first magnet 1240. The first edge of the second magnet 1120 may be 55% to 75% of the first edge of the first magnet 1240. The first edge of the second magnet 1120 may be 60% to 66% of the first edge of the first magnet 1240. The first edge of the second magnet 1120 may be 62% to 64% of the first edge of the first magnet 1240. The height H1 of the first magnet 1240 may be greater than the height H2 of the second magnet 1120. The width W1 of the first magnet 1240 may be greater than the width W2 of the second magnet 1120.

[0145] The area of ​​the first face of the second magnet 1120 may be 30% to 50% of the area of ​​the first face of the first magnet 1240. The area of ​​the first face of the second magnet 1120 may be 35% to 45% of the area of ​​the first face of the first magnet 1240. The area of ​​the first face of the second magnet 1120 may be 38% to 42% of the area of ​​the first face of the first magnet 1240.

[0146] The first magnet 1240 and the second magnet 1120 may be formed to have the same thickness. The volume of the second magnet 1120 may be 30% to 50% of the volume of the first magnet 1240.

[0147] When viewed from the second magnet 1120 in a direction toward the first magnet 1240, an edge region of the second magnet 1120 may be disposed within a first surface of the first magnet 1240. The edge region may be an end region. The edge region may be a corner. The first magnet 1240 may be disposed such that all of the region of the second magnet 1120 overlaps the first magnet 1240 in a first direction in which the first magnet 1240 faces the second magnet 1120. The first magnet 1240 may be disposed such that all of the region of the second magnet 1120 overlaps the first magnet 1240 in a first direction in which the first magnet 1240 faces the second magnet 1120.

[0148] In a modified example, the size of the first magnet 1240 may be smaller than the size of the second magnet 1120. The second magnet 1120 may be formed larger than the first magnet 1240.

[0149] The central axis of the first magnet 1240 and the second magnet 1120 may coincide with each other. However, in an actual product, a tolerance of ±1% to ±2% may occur.

[0150] In the first embodiment of the present invention, the second magnet 1120 may include a second surface facing the first surface of the first magnet 1240. In this case, the central axis of the first magnet 1240 may be disposed eccentrically with the central axis of the moving plate 1300 in a direction perpendicular to the first surface. The area of ​​the first surface of the first magnet 1240 may be larger than the area of ​​the second surface of the second magnet 1120.

[0151] In the first embodiment of the present invention, in an initial state where no current is applied to the driving unit 1400, the moving unit 1200 may contact the fixed unit 1100. When viewed in a direction from the second magnet 1120 toward the first magnet 1240, a corner of the first magnet 1240 may surround the second magnet 1120. When viewed in a direction from the second magnet 1120 toward the first magnet 1240, the second magnet 1120 may be disposed inside the corner of the first magnet 1240.

[0152] The first magnet 1240 may include a first surface facing the second magnet 1120, and a second surface opposite to the first surface. The first surface of the first magnet 1240 may include a first side and a second side shorter than the first side. The first side of the first magnet 1240 may be formed to be 1 mm to 5 mm. The second side of the first magnet 1240 may be formed to be 0.8 mm to 4 mm. The thickness between the first surface and the second surface of the first magnet 1240 may be formed to be 0.1 mm to 0.5 mm.

[0153] In the first embodiment of the present invention, the force (Fx) generated by the first actuator 1410 may be within 7 mN. Also, the force (Fy) generated by the second actuator 1420 may be within 7 mN. Or, the force (Fx) generated by the first actuator 1410 may be within 3 mN. Also, the force (Fy) generated by the second actuator 1420 may be within 3 mN.

[0154] The first surface of the first magnet 1240 may be formed in a square shape. The first surface of the second magnet 1120 may be formed in a square shape. Alternatively, each of the first surface of the first magnet 1240 and the first surface of the second magnet 1120 may be formed in a rectangle. The first magnet 1240 may have at least a portion of a square cross section. The second magnet 1120 may have at least a portion of a square cross section. The first magnet 1240 may be formed with an R-shaped end. The second magnet 1120 may be formed with an R-shaped end.

[0155] In a modified example, the first magnet 1240 may have a circular cross section. The first magnet 1240 may be formed in a cylindrical shape. The second magnet 1120 may have a circular cross section. The second magnet 1120 may be formed in a cylindrical shape. The first magnet 1240 may have an R-shaped end. The first magnet 1240 may have a curved end. The first magnet 1240 may be formed to have a curvature at its end. The first magnet 1240 may have a C-cut or R-cut end. The second magnet 1120 may have an R-shaped end. The second magnet 1120 may have a curved end. The second magnet 1120 may be formed to have a curvature at its end. The second magnet 1120 may have a C-cut or R-cut end.

[0156] The reflection member driving device 1000 may include a moving plate 1300. The moving plate 1300 may be an intermediate plate. The moving plate 1300 may be disposed between the housing 1110 and the holder 1210. The moving plate 1300 may be disposed between the mover rigid 1230 and the holder 1210. The moving plate 1300 may be disposed between the first magnet 1240 and the holder 1210. The moving plate 1300 may be disposed between the fixed part 1100 and the moving part 1200. The moving plate 1300 may be disposed between the first surface of the second magnet 1120 and the holder 1210. The moving plate 1300 may guide the movement of the holder 1210 relative to the housing 1110. The moving plate 1300 may provide a tilt center for the holder 1210. That is, the holder 1210 may tilt around the moving plate 1300. The moving plate 1300 may have one side disposed in the holder 1210 and the other side disposed in the housing 1110. The moving plate 1300 may be in contact with the holder 1210 and the housing 1110.

[0157] The moving plate 1300 may include a first surface facing the housing 1110 and a second surface facing the holder 1210. The first surface of the moving plate 1300 may include a plurality of first protrusions 1310 spaced apart from each other in a first axial direction. The second surface of the moving plate 1300 may include a plurality of second protrusions 1320 spaced apart from each other in a second axial direction.

[0158] The moving plate 1300 may include a plurality of first convex portions formed on one surface and a plurality of second convex portions formed on the other surface. The first convex portions may be the first protrusions 1310. The second convex portions may be the second protrusions 1320. The x-axis may correspond to a straight line connecting two of the plurality of first convex portions. The x-axis may be coincident with or parallel to a straight line connecting two of the plurality of first convex portions. The y-axis may correspond to a straight line connecting two of the plurality of second convex portions. The y-axis may be coincident with or parallel to a straight line connecting two of the plurality of second convex portions. In a modified example, the first convex portions may be the second protrusions 1320 and the second convex portions may be the first protrusions 1310.

[0159] The moving plate 1300 may include a first protrusion 1310. The first protrusion 1310 may be disposed on the housing 1110. The first protrusion 1310 may contact the housing 1110. The first protrusion 1310 may be disposed in a groove 1115 of the housing 1110. The first protrusion 1310 may provide a first axis tilt center for the holder 1210. The first protrusion 1310 may provide an x-axis tilt center for the holder 1210. The first protrusion 1310 may include two first protrusions. The two first protrusions may be spaced apart in the x-axis direction. The two first protrusions may be disposed on the x-axis. The holder 1210 may be tilted around the first protrusion 1310 of the moving plate 1300 by the first driving unit 1410. The holder 1210 may be tilted in the up and down direction around the first protrusion 1310 of the moving plate 1300 by the first driving unit 1410.

[0160] The first axis of the moving plate 1300 may be defined by the first protrusion 1310 of the moving plate 1300 and the groove 1115 of the housing 1110. In the first embodiment of the present invention, the first protrusion 1310 of the moving plate 1300 is disposed on the housing 1110 side instead of the holder 1210 side, so that the rotation center of the tilt around the first axis may be further away. This may increase the accuracy of the Hall value for sensing the amount of tilt movement of the first axis. A mechanical stroke for x-axis tilt drive may be ensured.

[0161] The moving plate 1300 may include a second protrusion 1320. The second protrusion 1320 may be disposed on the holder 1210. The second protrusion 1320 may contact the holder 1210. The second protrusion 1320 may be disposed in a groove 1211 of the holder 1210. The second protrusion 1320 may provide a second axis tilt center perpendicular to the first axis for the holder 1210. The second protrusion 1320 may provide a y axis tilt center for the holder 1210. The second protrusion 1320 may include two second protrusions. The two second protrusions may be spaced apart in the y axis direction. The two second protrusions may be disposed on the y axis. The holder 1210 may be tilted around the second protrusion 1320 of the moving plate 1300 by the second driving unit 1420. The holder 1210 can be tilted left and right around the second protrusion 1320 of the moving plate 1300 by the second driving unit 1420 .

[0162] In an alternative embodiment, a first protrusion 1310 of the moving plate 1300 can provide a y-axis tilt center for the holder 1210, and a second protrusion 1320 of the moving plate 1300 can provide an x-axis tilt center.

[0163] The reflection member driving device 1000 may include grease. The grease may be disposed between the moving plate 1300 and the housing 1110. The grease may be made of a different material than the damper 1500. The grease may be separated from the damper 1500. The grease may be separated from the damper 1500. The grease may be applied in a different shape than the damper 1500. The grease may be applied at a different position than the damper 1500.

[0164] The reflection member driving device 1000 may include a driving unit 1400. The driving unit 1400 may move the moving unit 1200 relative to the fixed unit 1100. The driving unit 1400 may tilt the moving unit 1200 relative to the fixed unit 1100. The driving unit 1400 may tilt the holder 1210. The driving unit 1400 may tilt the moving unit 1200 based on x-axis and y-axis perpendicular to each other of the moving plate 1300. The driving unit 1400 may include a coil and a magnet. The driving unit 1400 may move the moving unit 1200 through electromagnetic interaction. In a modified example, the driving unit 1400 may include a shape memory alloy (SMA).

[0165] The actuator 1400 may include a first actuator 1410 and a second actuator 1420. The first actuator 1410 may include a first actuator magnet 1411 and a first coil 1412. The second actuator 1420 may include a second actuator magnet 1421 and a second coil 1422. The first actuator magnet 1411 and the first coil 1412 may tilt the holder 1210 about a first axis. The second actuator magnet 1421 and the second coil 1422 may tilt the holder 1210 about a second axis perpendicular to the first axis. One of the first actuator magnet 1411 and the second actuator magnet 1421 may be referred to as a third magnet, and the other may be referred to as a fourth magnet.

[0166] The actuator 1400 may include a first actuator 1410. The first actuator 1410 may tilt the moving part 1200 about a first axis relative to the fixed part 1100. The first actuator 1410 may tilt the holder 1210 based on a first axis of the moving plate 1300. The first actuator 1410 may tilt the moving part 1200 about an x-axis relative to the fixed part 1100. The first actuator 1410 may include a coil and a magnet. The first actuator 1410 may move the moving part 1200 through electromagnetic interaction. In a modified example, the first actuator 1410 may include a shape memory alloy (SMA).

[0167] The first driving unit 1410 may include a first driving magnet 1411. The first driving magnet 1411 may be disposed in the holder 1210. The first driving magnet 1411 may be disposed on a lower surface of the holder 1210. The first driving magnet 1411 may be fixed to the holder 1210. The first driving magnet 1411 may be fixed to the holder 1210 by adhesive. The first driving magnet 1411 may be disposed between the holder 1210 and a lower surface of the housing 1110. The first driving magnet 1411 may be disposed between the holder 1210 and a lower plate of the housing 1110. The first driving magnet 1411 may move integrally with the holder 1210. The first driving magnet 1411 may tilt the holder 1210. The first driving magnet 1411 may tilt the holder 1210 with respect to a first axis. The first driving magnet 1411 may be disposed to face the first coil 1412. The first drive magnet 1411 can face the first coil 1412. The first drive magnet 1411 may be disposed at a position corresponding to the first coil 1412. The first drive magnet 1411 can interact with the first coil 1412. The first drive magnet 1411 can electromagnetically interact with the first coil 1412. At least a portion of the first drive magnet 1411 may be disposed in the groove 1217 of the holder 1210.

[0168] The first driving magnet 1411 may include a first surface in a direction toward the reflecting member 1220. The second magnet 1120 may include a first surface in a direction toward the reflecting member 1220. The first surface of the first driving magnet 1411 may include a first region that is closest to the second magnet 1120. The first region of the first driving magnet 1411 may have a different polarity from the first surface of the second magnet 1120. The first surface of the first driving magnet 1411 may include a second region that has a different polarity from the first region. The first region of the first driving magnet 1411 may have a S pole and the second region may have a N pole. In this case, the first surface of the second magnet 1120 may have a N pole. In a modified example, the first region of the first driving magnet 1411 may have a N pole and the second region may have a S pole.

[0169] In the first embodiment of the present invention, magnetic field interference can be minimized through the magnet polarity arrangement of the first driving magnet 1411 and the second magnet 1120.

[0170] The first drive magnet 1411 may include a second surface opposite the first surface of the first drive magnet 1411. The second surface of the first drive magnet 1411 may include a third region having a different polarity than the first region. The second surface of the first drive magnet 1411 may include a fourth region having a different polarity than the second region. The second surface of the first drive magnet 1411 may face the first coil 1412. The third region may have a north pole and the fourth region may have a south pole. In a variant, the third region may have a south pole and the fourth region may have a north pole.

[0171] The first drive magnet 1411 may include a neutral portion disposed between the first region and the second region. The first drive magnet 1411 may include a neutral portion disposed between the third region and the fourth region. The neutral portion may be a portion where the polarity is close to neutral. The neutral portion may be an air gap. Alternatively, in a modified example, the neutral portion may be disposed between the first region and the third region and between the second region and the fourth region.

[0172] The region of the first drive magnet 1411 closest to the first surface of the second magnet 1120 may have a polarity that generates an attractive force with the first surface of the second magnet 1120. The first surface of the second magnet 1120 and the first region of the first drive magnet 1411 closest to the first surface of the second magnet 1120 may generate an attractive force with each other.

[0173] Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the center of the moving part 1200. The first surface of the first driving magnet 1411 may include a first region and a second region having different polarities. The first surface of the second magnet 1120 may be disposed so as to be closer to the first driving magnet 1411 than the second driving magnet 1421. The first region of the first driving magnet 1411 may be disposed so as to be closer to the second magnet 1120 than the second region. The first region of the first driving magnet 1411 may have a polarity different from that of the first surface of the second magnet 1120.

[0174] Each of the second magnet 1120 and the first drive magnet 1411 can include a first face that faces toward the center of the holder 1210. The first face of the first drive magnet 1411 and the first face of the second magnet 1120 can include regions having different polarities.

[0175] The first actuator 1410 may include a first coil 1412. The first coil 1412 may be disposed on the substrate 1130. The first coil 1412 may be disposed on the housing 1110. The first coil 1412 may be disposed on the substrate 1130 at a position corresponding to the first actuator magnet 1411. The first coil 1412 may be disposed under the holder 1210. The first coil 1412 may interact with the first actuator magnet 1411. When a current is applied to the first coil 1412, an electromagnetic field is formed around the first coil 1412, and may interact with the first actuator magnet 1411. The first actuator magnet 1411 and the first coil 1412 may tilt the holder 1210 based on a first axis. In this case, the first axis may be the x-axis.

[0176] In the first embodiment of the present invention, a first directional driving current may be applied to the first coil 1412 to drive the first coil 1412. At this time, a second directional driving current opposite to the first directional driving current may not be used to drive the first coil 1412. That is, the first coil 1412 may be supplied with only one current of either the reverse direction or the forward direction.

[0177] The reflection member driving device 1000 may include a Hall sensor 1413. The Hall sensor 1413 may sense a first driving magnet 1411. The Hall sensor 1413 may sense a magnetic force of the first driving magnet 1411. The Hall sensor 1413 may sense a position of the holder 1210. The Hall sensor 1413 may sense a position of the reflection member 1220. The Hall sensor 1413 may sense an amount of tilt of the holder 1210 around the x-axis.

[0178] The reflection member driving device 1000 may include a yoke 1414. The yoke 1414 may be disposed between the first driving magnet 1411 and the holder 1210. The yoke 1414 may be formed in a shape corresponding to the first driving magnet 1411. The yoke 1414 may increase the interaction force between the first driving magnet 1411 and the first coil 1412.

[0179] The actuator 1400 may include a second actuator 1420. The second actuator 1420 may tilt the moving part 1200 about a second axis relative to the fixed part 1100. The second actuator 1420 may tilt the holder 1210 about a second axis perpendicular to the first axis of the moving plate 1300. The second actuator 1420 may tilt the moving part 1200 about a y axis relative to the fixed part 1100. The second actuator 1420 may include a coil and a magnet. The second actuator 1420 may move the moving part 1200 through electromagnetic interaction. In a modified example, the second actuator 1420 may include a shape memory alloy (SMA).

[0180] The second driving unit 1420 may include a second driving magnet 1421. The second driving magnet 1421 may be disposed on the holder 1210. The second driving magnet 1421 may be disposed on both side surfaces of the holder 1210. The second driving magnet 1421 may be fixed to the holder 1210. The second driving magnet 1421 may be fixed to the holder 1210 by adhesive. The second driving magnet 1421 may be disposed between the holder 1210 and a side surface of the housing 1110. The second driving magnet 1421 may be disposed between the holder 1210 and a side plate of the housing 1110. The second driving magnet 1421 may move integrally with the holder 1210. The second driving magnet 1421 may tilt the holder 1210. The second driving magnet 1421 may tilt the holder 1210 with respect to a second axis perpendicular to the first axis. The second drive magnet 1421 may be disposed to face the second coil 1422. The second drive magnet 1421 can face the second coil 1422. The second drive magnet 1421 may be disposed at a position corresponding to the second coil 1422. The second drive magnet 1421 can interact with the second coil 1422. The second drive magnet 1421 can electromagnetically interact with the second coil 1422.

[0181] The second drive magnet 1421 may include a neutral portion having no polarity. The neutral portion may be an air gap. The neutral portion may be disposed between the north pole and the south pole. The neutral portion may be disposed between a first portion corresponding to the front of the second drive magnet 1421 and a second portion corresponding to the rear of the second drive magnet 1421. Alternatively, the neutral portion may be disposed between an inner portion and an outer portion of the second drive magnet 1421.

[0182] The second driving magnet 1421 may include a first sub-magnet 1421-1. The first sub-magnet 1421-1 may be disposed on one side of the holder 1210. The first sub-magnet 1421-1 may be disposed to face the first sub-coil 1422-1. The first sub-magnet 1421-1 may face the first sub-coil 1422-1. The first sub-magnet 1421-1 may be disposed at a position corresponding to the first sub-coil 1422-1. The first sub-magnet 1421-1 may interact with the first sub-coil 1422-1. The first sub-magnet 1421-1 may electromagnetically interact with the first sub-coil 1422-1.

[0183] The second drive magnet 1421 may include a second sub-magnet 1421-2. The second sub-magnet 1421-2 may be disposed on the other side of the holder 1210. The second sub-magnet 1421-2 may be disposed on the opposite side of the first sub-magnet 1421-1. The second sub-magnet 1421-2 may be formed in the same size and shape as the first sub-magnet 1421-1. The second sub-magnet 1421-2 may be disposed to face the second sub-coil 1422-2. The second sub-magnet 1421-2 may face the second sub-coil 1422-2. The second sub-magnet 1421-2 may be disposed at a position corresponding to the second sub-coil 1422-2. The second sub-magnet 1421-2 may interact with the second sub-coil 1422-2. The second sub-magnet 1421-2 may electromagnetically interact with the second sub-coil 1422-2.

[0184] The second actuator 1420 may include a second coil 1422. The second coil 1422 may be disposed on the substrate 1130. The second coil 1422 may be disposed on the housing 1110. The second coil 1422 may be disposed on a second portion of the substrate 1130. The second coil 1422 may be disposed on both sides of the holder 1210. When a current is applied to the second coil 1422, an electromagnetic field is formed around the second coil 1422 and may interact with the second actuator magnet 1421. The second coil 1422 may include two sub-coils 1421-1 and 1421-2 disposed on opposite sides of the holder 1210. The two sub-coils 1421-1 and 1421-2 may be electrically connected to each other. The second actuator magnet 1421 and the second coil 1422 may tilt the holder 1210 with respect to a second axis perpendicular to the first axis. In this case, the second axis may be the y-axis, the first axis may be the x-axis, and the z-axis may be the optical axis of the image sensor 3400.

[0185] The second coil 1422 may include a first subcoil 1422-1. The first subcoil 1422-1 may be disposed on the substrate 1130. The first subcoil 1422-1 may be disposed on the housing 1110. The first subcoil 1422-1 may be disposed on a second portion of the substrate 1130. The first subcoil 1422-1 may be disposed on a side of the holder 1210. When a current is applied to the first subcoil 1422-1, an electromagnetic field is formed around the first subcoil 1422-1 and may interact with the first submagnet 1421-1.

[0186] The second coil 1422 may include a second subcoil 1422-2. The second subcoil 1422-2 may be disposed on the substrate 1130. The second subcoil 1422-2 may be disposed on the housing 1110. The second subcoil 1422-2 may be disposed on a second portion of the substrate 1130. The second subcoil 1422-2 may be disposed on a side of the holder 1210. When a current is applied to the second subcoil 1422-2, an electromagnetic field is formed around the second subcoil 1422-2 and may interact with the second sub-magnet 1421-2.

[0187] The second driving magnet 1421 may include a first sub-magnet 1421-1 arranged on a first side of the holder 1210 and a second sub-magnet 1421-2 arranged on a second side of the holder 1210. The second coil 1422 may include a first sub-coil 1422-1 arranged on a substrate and positioned corresponding to the first sub-magnet 1421-1, and a second sub-coil 1422-2 arranged on the substrate and positioned corresponding to the second sub-magnet 1421-2.

[0188] The reflection member driving device 1000 may include a Hall sensor 1423. The Hall sensor 1423 may sense the second driving magnet 1421. The Hall sensor 1423 may sense the magnetic force of the second driving magnet 1421. The Hall sensor 1423 may sense the position of the holder 1210. The Hall sensor 1423 may sense the position of the reflection member 1220. The Hall sensor 1423 may sense the amount of tilt of the holder 1210 around the y-axis.

[0189] The reflection member driving device 1000 may include a yoke 1424. The yoke 1424 may be disposed between the second driving magnet 1421 and the holder 1210. The yoke 1424 may be formed in a shape corresponding to the second driving magnet 1421. The yoke 1424 may increase the interaction force between the second driving magnet 1421 and the second coil 1422.

[0190] The reflective member driving device 1000 may include a damper 1500. The damper 1500 may include an adhesive material. The damper 1500 may have viscosity. The damper 1500 may be disposed between the fixed part 1100 and the moving part 1200. The damper 1500 may be disposed between the mover rigid 1230 and the housing 1110. The damper 1500 may connect the mover rigid 1230 and the housing 1110. The damper 1500 may be coupled to the mover rigid 1230 and the housing 1110. The damper 1500 may be disposed in the mover rigid 1230. The damper 1500 may be coupled to the mover rigid 1230. The damper 1500 may be coupled to the mover rigid 1230. The mover rigid 1230 may be coupled to the housing 1110. The damper 1500 may bond the housing 1110 and the mover rigid 1230 together.

[0191] The damper 1500 may be disposed at least in one of an upper portion and a lower portion of the first portion 1111 of the housing 1110. The damper 1500 may connect the protrusion 1231 of the mover rigid 1230 and the housing 1110. At least a portion of the damper 1500 may be disposed in the groove 1119 of the housing 1110 between the protrusion 1231 of the mover rigid 1230 and the housing 1110. At least a portion of the damper 1500 may be disposed in a second groove portion recessed from the first groove portion of the housing 1110.

[0192] In the first embodiment of the present invention, a gel bond acting as a damper can be applied between the housing 1110 and the mover rigid 1230. This maintains the gain value but ensures a phase margin to improve the responsiveness of the actuator. That is, the FRA characteristics may be improved. In particular, the response characteristics of the tilt (pitch) around the x-axis may be improved. The tilt (yaw) around the y-axis may also be improved.

[0193] 30 and 31 are diagrams illustrating tilt around the x-axis of the reflection member driving device according to the first embodiment of the present invention.

[0194] In the first embodiment of the present invention, in an initial state where no current is supplied to the first actuator 1410, the holder 1210 may be disposed between the upper and lower plates of the housing 1110. At this time, the holder 1210 may be in contact with the upper plate of the housing 1110 (see FIG. 30).

[0195] At this time, when a current in a first direction is applied to the first coil 1412, electromagnetic interaction between the first coil 1412 and the first driving magnet 1411 causes the holder 1210 to tilt downward around the first protrusion 1310 of the moving plate 1300 (see θ in Figure 31).

[0196] That is, when a current is applied to the first coil 1412, the holder 1210 can tilt downward about the x-axis relative to the housing 1110. At this time, since the reflecting member 1220 is also tilted together with the holder 1210, the optical path is changed and the shaking detected by the gyro sensor 1150 may be offset.

[0197] In the first embodiment of the present invention, only a current in a first direction may be used to control the first coil 1412, and a current in a direction opposite to the first direction may not be used. This may essentially prevent the problem of the moving plate 1300 becoming detached, which may occur when a current in a second direction is applied to the first coil 1412.

[0198] More specifically, in the comparative example, when the centers of the first magnet 1240 and the second magnet 1120 are disposed at the same height as the first protrusion 1310 of the moving plate 1300, if the repulsive force between the first magnet 1240 and the second magnet 1120 and the electromagnetic force between the first coil 1412 and the first driving magnet 1411 are uniform, the moving part 1200 may slide due to the electromagnetic force, and the moving plate 1300 may be detached. If the electromagnetic force between the first coil 1412 and the first driving magnet 1411 is greater than the repulsive force between the first magnet 1240 and the second magnet 1120, the mover rigid 1230 may slip out by the gap between the first magnet 1240 and the second magnet 1120, and the moving plate 1300 may be detached. This may cause poor Hall carriage dynamic characteristics.

[0199] In the first embodiment of the present invention, the center axis of the repulsive force and the center axis of the x-axis drive may be offset by a certain distance, so that the reflecting member 1220 may be mechanically shifted in an upward direction. At this time, the upward direction may be the opposite direction of gravity.

[0200] In the first embodiment of the present invention, control may be performed by a code rather than current control. In a pivot structure such as that in the first embodiment of the present invention, it may be difficult to determine the initial position in an open state due to sagging caused by gravity, so control may be required in a closed manner (a manner in which the moving part 1200 contacts the fixed part 1100 in the initial state). Since the first embodiment of the present invention is controlled in a closed manner, more precise driving may be performed. Furthermore, in the first embodiment of the present invention, the closed manner also minimizes noise generated by the moving part 1200 moving around.

[0201] 32 to 34 are diagrams illustrating tilt around the y-axis of the reflection member driving device according to the first embodiment of the present invention.

[0202] In the first embodiment of the present invention, in an initial state where no current is supplied to the second actuator 1420, the holder 1210 may be disposed between both side plates of the housing 1110. At this time, the holder 1210 may be in a state where it is spaced apart from both side plates of the housing 1110 (see FIG. 32).

[0203] At this time, when a current in a first direction is applied to the second coil 1422, electromagnetic interaction between the second coil 1422 and the second driving magnet 1421 causes the holder 1210 to tilt to one side around the second protrusion 1320 of the moving plate 1300 (see FIG. 33a).

[0204] On the other hand, when a current in a second direction opposite to the first direction is applied to the second coil 1422, electromagnetic interaction between the second coil 1422 and the second driving magnet 1421 causes the holder 1210 to tilt to the other side around the second protrusion 1320 of the moving plate 1300 (see FIG. 34b).

[0205] That is, when a current is selectively applied to the second coil 1422 in both directions, the holder 1210 can tilt left and right about the y-axis relative to the housing 1110. At this time, the reflecting member 1220 is also tilted together with the holder 1210, so that the optical path is changed and the shaking detected by the gyro sensor 1150 may be offset. Therefore, in the first embodiment of the present invention, image stabilization for x-axis tilt and y-axis tilt, i.e., two-axis tilt, may be performed.

[0206] A lens driving device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0207] 35 is a perspective view of the lens driving device according to the first embodiment of the present invention, FIG. 36 is a perspective view of the lens driving device according to the first embodiment of the present invention with some components omitted, FIG. 37 is a perspective view of the lens driving device shown in FIG. 36 from another direction, FIG. 38 is a perspective view of the lens driving device according to the first embodiment of the present invention with some components omitted, FIG. 39 is a perspective view of the lens driving device according to the first embodiment of the present invention with the components such as the substrate and coil omitted, FIG. 40 is a perspective view of the lens driving device shown in FIG. 39 with the first lens and related components omitted, FIG. 41 is a perspective view and a partially enlarged view of some components of the lens driving device according to the first embodiment of the present invention, FIG. 42 is a drawing for explaining the arrangement structure of the coils and sensors of the lens driving device according to the first embodiment of the present invention, and FIG. 43 is a perspective view of the lens driving device according to FIG. FIG. 45 is an enlarged view of a portion of the lens driving device according to the first embodiment of the present invention. FIG. 46 is a perspective view of the first moving section and the second moving section and related sections of the lens driving device according to the first embodiment of the present invention. FIG. 47 is a perspective view of the second moving section and related sections of the lens driving device according to the first embodiment of the present invention. FIG. 48 is an exploded perspective view of the lens driving device according to the first embodiment of the present invention. FIG. 49 is a perspective view of the second housing of the lens driving device according to the first embodiment of the present invention. FIGS. 50 and 51 are exploded perspective views of a portion of the lens driving device according to the first embodiment of the present invention. FIG. 52 is a cross-sectional view of the lens driving device according to the first embodiment of the present invention.

[0208] The lens driving device 2000 can perform a zoom function. The lens driving device 2000 can perform a continuous zoom function. The lens driving device 2000 can perform an auto focus (AF) function. The lens driving device 2000 can move a lens. The lens driving device 2000 can move a lens along an optical axis. The lens driving device 2000 can move a lens formed of a plurality of groups for each group. The lens driving device 2000 can move a second group lens. The lens driving device 2000 can move a third group lens. The lens driving device 2000 can be a lens actuator. The lens driving device 2000 can be an AF actuator. The lens driving device 2000 can be a zoom actuator. The lens driving device 2000 can include a voice coil motor (VCM).

[0209] The lens driving device 2000 may include a lens. Alternatively, the lens may be described as one component of the camera device 10, not one component of the lens driving device 2000. The lens may be disposed in an optical path formed by the reflecting member 1220 of the reflecting member driving device 1000 and the image sensor 3400. The lens may include a plurality of lenses. The plurality of lenses may form a plurality of groups. The lenses may form three groups. The lens may include first to third group lenses. A first group lens, a second group lens, and a third group lens may be disposed in sequence between the reflecting member 1220 and the image sensor 3400. The first group lens may include a first lens 2120. The second group lens may include a second lens 2220. The third group lens may include a third lens 2320.

[0210] The lens driving device 2000 may include a fixed part 2100. The fixed part 2100 may be a part that is relatively fixed when the first moving part 2200 and the second moving part 2300 move.

[0211] The lens driving device 2000 may include a housing 2110. The fixing part 2100 may include a housing 2110. The housing 2110 may be disposed outside the first holder 2210 and the second holder 2310. The housing 2110 may accommodate at least a portion of the first holder 2210 and the second holder 2310. The housing 2110 may include a front plate, a rear plate, and a plurality of connecting plates. In this case, the front plate may be referred to as an upper plate, the rear plate may be referred to as a lower plate, and the connecting plates may be referred to as side plates.

[0212] The housing 2110 may include a first housing 2110-1. The first housing 2110-1 may form a front plate of the housing 2110. The first housing 2110-1 may be combined with a first lens 2120. The first housing 2110-1 may be a cover. The first housing 2110-1 may be combined with the reflective member driving device 1000. The first lens 2120 may be fixed to the first housing 2110-1.

[0213] The housing 2110 may include a second housing 2110-2. The second housing 2110-2 may form a connecting plate with a rear plate of the housing 2110. The second housing 2110-2 may be open forward. The first housing 2110-1 may be coupled to the front of the second housing 2110-2. A portion of the guide rail 2130 may be disposed between the first housing 2110-1 and the second housing 2110-2.

[0214] The housing 2110 may include a first groove 2111. The first groove 2111 may be coupled to the protrusion 1116 of the housing 1110 of the reflective member driving device 1000. The first groove 2111 may be formed in a shape corresponding to the protrusion 1116 of the reflective member driving device 1000. An adhesive for coupling the reflective member driving device 1000 to the lens driving device 2000 may be disposed in the first groove 2111.

[0215] The housing 2110 may include a second groove 2112. The second groove 2112 may be coupled to the protrusion 1117 of the housing 1110 of the reflective member driving device 1000. The protrusion 1117 of the reflective member driving device 1000 may be inserted into the second groove 2112. The second groove 2112 may be formed in a shape corresponding to the protrusion 1117 of the reflective member driving device 1000. An adhesive for coupling the reflective member driving device 1000 to the lens driving device 2000 may be disposed in the second groove 2112.

[0216] The housing 2110 may include a first hole 2113. The first hole 2113 may expose the protrusion 2211 of the first holder 2210 and the protrusion 2311 of the second holder 2310. The first hole 2113 may be formed in a connecting plate of the housing 2110. In a manufacturing test stage, the protrusion 2211 of the first holder 2210 and the protrusion 2311 of the second holder 2310 exposed through the first hole 2113 may be checked to check whether the lens driving device 2000 is operating normally.

[0217] The housing 2110 may include a plate 2113-1. The plate 2113-1 may cover the first hole 2113. The plate 2113-1 may be disposed in the first hole 2113 to close the first hole 2113.

[0218] The housing 2110 may include a second hole 2114. The second hole 2114 may be a coil accommodating hole in which the first coil 2412 and the second coil 2422 are disposed. The first coil 2412 and the second coil 2422 may be disposed in the second hole 2114. The second hole 2114 may be formed to be larger than the first coil 2412 and the second coil 2422.

[0219] The housing 2110 may include a protrusion 2115. The protrusion 2115 may be formed on the second housing 2110-2. The protrusion 2115 may be formed as a two-stage protrusion. The protrusion 2115 may be coupled to the guide rail 2130. The protrusion 2115 may be coupled to the first housing 2110-1. The guide rail 2130 may be coupled to a large diameter portion of the protrusion 2115, and the first housing 2110-1 may be coupled to a small diameter portion of the protrusion 2115.

[0220] The protrusion 2115 may include a first protrusion 2115-1. The first protrusion 2115-1 may include a first portion having a first diameter (D2) and a second portion protruding from the first portion and having a second diameter (D1). The protrusion 2115 may include a second protrusion 2115-2. The second protrusion 2115-2 may include a third portion having a third diameter (D3) and a fourth portion protruding from the third portion and having a fourth diameter (D4). In this case, the fourth diameter (D4) may be smaller than the second diameter (D1). This allows the first protrusion 2115-1 to be more tightly coupled to the first housing 2110-1 than the second protrusion 2115-2.

[0221] The housing 2110 may include a guide protrusion 2116. The guide protrusion 2116 may be formed on an inner surface of the housing 2110. The guide protrusion 2116 may be formed in a shape corresponding to at least a part of the shape of the first holder 2210 and the second holder 2310. Thus, the guide protrusion 2116 may guide the movement of the first holder 2210 and the second holder 2310 in the optical axis direction. At this time, the optical axis direction may be the z-axis direction perpendicular to the x-axis and y-axis. The guide protrusion 2116 may be disposed in the optical axis direction. The guide protrusion 2116 may extend in the optical axis direction.

[0222] The housing 2110 may include a groove 2117. The groove 2117 may be formed in the first housing 2110-1. The groove 2117 of the first housing 2110-1 may be coupled with the protrusion 2115 of the second housing 2110-2.

[0223] The housing 2110 may include a protrusion 2118. The protrusion 2118 may be coupled to the substrate 2140. The protrusion 2118 may be inserted into a groove in the substrate 2140. The protrusion 2118 may be formed with a corresponding size and shape to fit into the groove in the substrate 2140.

[0224] The housing 2110 may include an air vent 2119. The air vent 2119 may be formed on a rear plate of the housing 2110. The air vent 2119 may form a gap between the housing 2110 and the dummy glass 2600. Air may flow through the gap between the housing 2110 and the dummy glass 2600. Gas generated during the curing process of the adhesive may escape through the air vent 2119.

[0225] The lens driving device 2000 may include a first lens 2120. Alternatively, the first lens 2120 may be described as a component of the camera device 10, not as a component of the lens driving device 2000. The fixed part 2100 may include a first lens 2120. The first lens 2120 may be disposed on the optical axis. The first lens 2120 may be disposed between the reflecting member 1220 and the image sensor 3400. The first lens 2120 may be disposed between the reflecting member 1220 and the second lens 2220. The first lens 2120 may be disposed in the first housing 2110-1. The first lens 2120 may be fixed to the first housing 2110-1. The first lens 2120 may maintain a fixed state even when the second lens 2220 and the third lens 2320 move.

[0226] The first lens 2120 may be a first group lens. The first lens 2120 may include multiple lenses. The first lens 2120 may include three lenses.

[0227] The lens driving device 2000 may include a guide rail 2130. The fixed part 2100 may include a guide rail 2130. The guide rail 2130 may be coupled between the first housing 2110-1 and the second housing 2110-2. The guide rail 2130 may guide the movement of the first holder 2210 and the second holder 2310. The rail 2130 may guide the first holder 2210 and the second holder 2310 to move in the optical axis direction. The guide rail 2130 may include a rail disposed in the optical axis direction. The guide rail 2130 may include a rail extending in the optical axis direction. The guide rail 2130 may include a rail formed so that the ball 2500 rolls.

[0228] The lens driving device 2000 may include a substrate 2140. The fixed part 2100 may include a substrate 2140. The substrate 2140 may be disposed on both sides of the housing 2110. The substrate 2140 may be an FPCB. A first coil 2412 and a second coil 2422 may be disposed on the substrate 2140.

[0229] The substrate 2140 may include a first region 2140-1. The first region 2140-1 may be formed at an end of the substrate 2140. A terminal may be arranged in the first region 2140-1. The substrate 2140 may include a second region 2140-2. The first region 2140-1 of the substrate 2140 may be folded inward relative to the second region 2140-2. This allows the size of the printed circuit board 3300 to be minimized while ensuring a soldering arrangement area for connecting the terminal of the substrate 2140 to the printed circuit board 3300. The first region 2140-1 may form an obtuse angle with the second region 2140-2.

[0230] The substrate 2140 may include a first substrate 2141. The first substrate 2141 may be disposed on one side of the housing 2110. A first coil 2412 may be disposed on the first substrate 2141. First and second Hall sensors 2413 and 2414 may be disposed on the first substrate 2141.

[0231] The substrate 2140 may include a second substrate 2142. The second substrate 2142 may be disposed on the other side of the housing 2110. The second substrate 2142 may be disposed on the opposite side of the first substrate 2141. A second coil 2422 may be disposed on the second substrate 2142. Third and fourth Hall sensors 2423, 2424 may be disposed on the second substrate 2142.

[0232] The lens driving device 2000 may include a suspension (SUS) 2145. The suspension 2145 may be disposed on the substrate 2140. The suspension 2145 can reinforce the strength of the substrate 2140. The suspension 2145 can dissipate heat generated in the substrate 2140.

[0233] The lens driving device 2000 may include an EEPROM 2150. The EEPROM 2150 may be electrically connected to the first coil 2412 and the second coil 2422. The EEPROM 2150 may be used to control the current applied to the first coil 2412 and the second coil 2422 before connecting the lens driving device 2000 to the driver IC 3900 during the manufacturing stage. That is, the EEPROM 2150 may be used to test whether the lens driving device 2000 operates normally. The EEPROM 2150 may be disposed on the inner surface of the substrate 2140.

[0234] The lens driving device 2000 may include a first moving unit 2200. The first moving unit 2200 can move relative to the fixed unit 2100. At least a portion of the first moving unit 2200 may be disposed between the fixed unit 2100 and the second moving unit 2300. The first moving unit 2200 can move between the fixed unit 2100 and the second moving unit 2300.

[0235] The lens driving device 2000 may include a first holder 2210. The first moving unit 2200 may include a first holder 2210. The first holder 2210 may be disposed in the housing 2110. The first holder 2210 may move relative to the housing 2110. At least a portion of the first holder 2210 may be separated from the housing 2110. The first holder 2210 may contact the housing 2110. The first holder 2210 may contact the housing 2110 when moving. Or, the first holder 2210 may contact the housing 2110 in an initial state.

[0236] The first holder 2210 may include a protrusion 2211. The protrusion 2211 may be a test protrusion. The protrusion 2211 may be formed on an outer surface of the first holder 2210. The protrusion 2211 may protrude from the first holder 2210. The protrusion 2211 may be visible from the outside through a first hole 2113 of the housing 2110. The protrusion 2211 may be used when testing whether the lens driving device 2000 is operating normally. The protrusion 2211 may include a flat surface 2211-1 and an inclined surface 2211-2.

[0237] The first holder 2210 may include a rail groove 2212. A ball 2500 may be disposed in the rail groove 2212. The ball 2500 may roll in the rail groove 2212. The rail groove 2212 and the ball 2500 may contact each other at two points. The rail groove 2212 may be disposed in the optical axis direction. The rail groove 2212 may extend in the optical axis direction.

[0238] The rail groove 2212 may include a plurality of rail grooves. The rail groove 2212 may include four rail grooves. The rail groove 2212 may include first to fourth rail grooves. One or more balls 2500 may be disposed in each of the plurality of rail grooves 2212.

[0239] The first holder 2210 may include a protrusion 2213. The protrusion 2213 may be formed on a surface of the first holder 2210 facing the first housing 2110-1. When the first holder 2210 moves in a direction approaching the first housing 2110-1, the protrusion 2213 may come into contact with the first housing 2110-1. At this time, when the protrusion 2213 is formed, the contact area between the first holder 2210 and the first housing 2110-1 may be reduced compared to when the protrusion 2213 is omitted. As a result, impact and noise generated by contact between the first holder 2210 and the first housing 2110-1 may be minimized.

[0240] The lens driving device 2000 may include a second lens 2220. Alternatively, the second lens 2220 may be described as a component of the camera device 10, rather than a component of the lens driving device 2000. The first moving unit 2200 may include a second lens 2220. The second lens 2220 may be disposed on the optical axis. The second lens 2220 may be disposed between the reflecting member 1220 and the image sensor 3400. The second lens 2220 may be disposed between the first lens 2120 and the third lens 2320. The second lens 2220 may be disposed in the first holder 2210. The second lens 2220 may be coupled to the first holder 2210. The second lens 2220 may be fixed to the first holder 2210. The second lens 2220 may be movable relative to the first lens 2120. The second lens 2220 may be moved separately from the third lens 2320.

[0241] The second lens 2220 may be a second group lens. The second lens 2220 may include a plurality of lenses. The second lens 2220 may include two lenses.

[0242] The lens driving device 2000 may include a second moving unit 2300. The second moving unit 2300 may be movable relative to the fixed unit 2100. The second moving unit 2300 may be movable separately from the first moving unit 2200. The second moving unit 2300 may be disposed behind the first moving unit 2200. The second moving unit 2300 may be movable in a direction toward and away from the first moving unit 2200.

[0243] The lens driving device 2000 may include a second holder 2310. The second moving unit 2300 may include a second holder 2310. The second holder 2310 may be disposed in the housing 2110. The second holder 2310 may move relative to the housing 2110. At least a portion of the second holder 2310 may be separated from the housing 2110. The second holder 2310 may contact the housing 2110. The second holder 2310 may contact the housing 2110 when moving. Or, the second holder 2310 may contact the housing 2110 in the initial state. The second holder 2310 may contact the first holder 2210. The second holder 2310 may be separated from the first holder 2210. The second holder 2310 may contact the first holder 2210 when moving. Or, the second holder 2310 may contact the first holder 2210 in the initial state.

[0244] The second holder 2310 may include a protrusion 2311. The protrusion 2311 may be a test protrusion. The protrusion 2311 may be formed on an outer surface of the second holder 2310. The protrusion 2311 may protrude from the second holder 2310. The protrusion 2311 may be visible from the outside through the first hole 2113 of the housing 2110. The protrusion 2311 may be used when testing whether the lens driving device 2000 is operating normally. The protrusion 2311 may include a flat surface 2311-1 and an inclined surface 2311-2.

[0245] The second holder 2310 may include a rail groove 2312. A ball 2500 may be disposed in the rail groove 2312. The ball 2500 may roll in the rail groove 2312. The rail groove 2312 and the ball 2500 may contact each other at two points. The rail groove 2312 may be disposed in the optical axis direction. The rail groove 2312 may extend in the optical axis direction.

[0246] The rail groove 2312 may include a plurality of rail grooves. The rail groove 2312 may include four rail grooves. The rail groove 2312 may include first to fourth rail grooves. One or more balls 2500 may be disposed in each of the plurality of rail grooves 2312.

[0247] The second holder 2310 may include a protrusion 2313. The protrusion 2313 may be formed on a surface of the second holder 2310 facing the first holder 2210. When the second holder 2310 moves in a direction toward the first holder 2210, the protrusion 2313 may come into contact with the first holder 2210. In this case, when the protrusion 2313 is formed, the contact area between the second holder 2310 and the first holder 2210 can be reduced compared to when the protrusion 2313 is omitted. As a result, impact and noise generated by contact between the second holder 2310 and the first holder 2210 can be minimized.

[0248] The lens driving device 2000 may include a third lens 2320. Alternatively, the third lens 2320 may be described as a component of the camera device 10, not as a component of the lens driving device 2000. The second moving unit 2300 may include a third lens 2320. The third lens 2320 may be disposed on the optical axis. The third lens 2320 may be disposed between the reflecting member 1220 and the image sensor 3400. The third lens 2320 may be disposed between the second lens 2220 and the image sensor 3400. The third lens 2320 may be disposed in the second holder 2310. The third lens 2320 may be coupled to the second holder 2310. The third lens 2320 may be fixed to the second holder 2310. The third lens 2320 may be movable relative to the first lens 2120. The third lens 2320 may be moved separately from the second lens 2220.

[0249] The third lens 2320 may be a third group lens. The third lens 2320 may include a plurality of lenses. The third lens 2320 may include two lenses.

[0250] The lens driving device 2000 may include a driving unit 2400. The driving unit 2400 may move at least a portion of the plurality of lenses. The driving unit 2400 may move the first moving unit 2200 and the second moving unit 2300 relative to the fixed unit 2100. The driving unit 2400 may include a coil and a magnet. The driving unit 2400 may move the first moving unit 2200 and the second moving unit 2300 through electromagnetic interaction. In a modified example, the driving unit 2400 may include a shape memory alloy.

[0251] The driving unit 2400 may include a first driving unit 2410. The first driving unit 2410 may move the first moving unit 2200 relative to the fixed unit 2100. The first driving unit 2410 may move the first moving unit 2200 relative to the second moving unit 2300. The first driving unit 2410 may be used to drive a zoom function. Alternatively, the first driving unit 2410 may be used to drive an autofocus function.

[0252] The first driving unit 2410 may include a first driving magnet 2411. The first driving magnet 2411 may be disposed on the first holder 2210. The first driving magnet 2411 may be disposed on a side of the first holder 2210. The first driving magnet 2411 may be coupled to the first holder 2210. The first driving magnet 2411 may be fixed to the first holder 2210. The first driving magnet 2411 may be fixed to the first holder 2210 by an adhesive. The first driving magnet 2411 may move integrally with the first holder 2210. The first driving magnet 2411 may be disposed to face the first coil 2412. The first driving magnet 2411 may face the first coil 2412. The first driving magnet 2411 may be disposed at a position corresponding to the first coil 2412. The first driving magnet 2411 may interact with the first coil 2412. The first drive magnet 2411 is capable of electromagnetic interaction with the first coil 2412 .

[0253] The first driving magnet 2411 may include a first magnet part 2411-1. The first magnet part 2411-1 may have a first polarity. The first driving magnet 2411 may include a second magnet part 2411-2. The second magnet part 2411-2 may have a second polarity different from the first polarity. In this case, the first polarity may be a north pole and the second polarity may be a south pole. Conversely, the first polarity may be a south pole and the second polarity may be a north pole.

[0254] The first drive magnet 2411 may include a neutral portion 2411-3. The neutral portion 2411-3 may be disposed between the first magnet portion 2411-1 and the second magnet portion 2411-2. The neutral portion 2411-3 may have a neutral polarity. The neutral portion 2411-3 may be a portion that is not magnetized.

[0255] The first actuator 2410 may include a first coil 2412. The first coil 2412 may be disposed on the substrate 2140. The first coil 2412 may be disposed on the first substrate 2141. The first coil 2412 may be disposed on the housing 2110. The first coil 2412 may be disposed outside the first holder 2210. When a current is applied to the first coil 2412, an electromagnetic field is formed around the first coil 2412 and may interact with the first actuator magnet 2411.

[0256] In a modified embodiment, the first coil 2412 may be disposed in the first holder 2210 and the first drive magnet 2411 may be disposed in the housing 2110 .

[0257] The first coil 2412 may be formed in a ring shape. The first coil 2412 may be formed in a square ring or a circular ring. Even if the first coil 2412 is formed in a square ring shape, the corners may be curved. The first coil 2412 may include a first portion 2412-1 and a second portion 2412-2 having a gap G1 therebetween. The first and second hall sensors 2413 and 2414 may be disposed in the gap G1 of the first coil 2412.

[0258] The lens driving device 2000 may include a Hall sensor. The Hall sensor may detect the first driving magnet 2411. The Hall sensor may include a plurality of Hall sensors. The Hall sensor may include a first Hall sensor 2413 and a second Hall sensor 2414. The first Hall sensor 2413 and the second Hall sensor 2414 may be spaced apart from each other. The first Hall sensor 2413 and the second Hall sensor 2414 may be spaced apart such that a gap G2 is formed therebetween. The first Hall sensor 2413 and the second Hall sensor 2414 may detect the first driving magnet 2411. The first Hall sensor 2413 and the second Hall sensor 2414 may detect the magnetic force of the first driving magnet 2411. The first Hall sensor 2413 and the second Hall sensor 2414 may detect the position of the first holder 2210. The first Hall sensor 2413 and the second Hall sensor 2414 may detect the position of the second lens 2220.

[0259] The lens driving device 2000 may include a yoke 2415. The yoke 2415 may be disposed between the first driving magnet 2411 and the first holder 2210. The yoke 2415 may be formed in a shape corresponding to the first driving magnet 2411. The yoke 2415 may increase the interaction force between the first driving magnet 2411 and the first coil 2412.

[0260] The yoke 2415 may include an extension 2415-1. The extension 2415-1 may wrap around the front and rear sides of the first drive magnet 2411. The yoke 2415 may include a groove 2415-2. The groove 2415-2 may be formed in the center of the body of the yoke 2415.

[0261] The driving unit 2400 may include a second driving unit 2420. The second driving unit 2420 may move the second moving unit 2300 relative to the fixed unit 2100. The second driving unit 2420 may move the second moving unit 2300 relative to the first moving unit 2200. The second driving unit 2420 may be used to drive an autofocus function. Alternatively, the second driving unit 2420 may be used to drive a zoom function.

[0262] The second driving unit 2420 may include a second driving magnet 2421. The second driving magnet 2421 may be disposed on the second holder 2310. The second driving magnet 2421 may be disposed on a side of the second holder 2310. The second driving magnet 2421 may be coupled to the second holder 2310. The second driving magnet 2421 may be fixed to the second holder 2310. The second driving magnet 2421 may be fixed to the second holder 2310 by an adhesive. The second driving magnet 2421 may move integrally with the second holder 2310. The second driving magnet 2421 may be disposed to face the second coil 2422. The second driving magnet 2421 may face the second coil 2422. The second driving magnet 2421 may be disposed at a position corresponding to the second coil 2422. The second driving magnet 2421 may interact with the second coil 2422. The second drive magnet 2421 can electromagnetically interact with the second coil 2422 .

[0263] The second actuator 2420 may include a second coil 2422. The second coil 2422 may be disposed on the substrate 2140. The second coil 2422 may be disposed on the second substrate 2142. The second coil 2422 may be disposed on the housing 2110. The second coil 2422 may be disposed outside the second holder 2310. When a current is applied to the second coil 2422, an electromagnetic field is formed around the second coil 2422 and may interact with the second actuator magnet 2421.

[0264] In a modified embodiment, the second coil 2422 may be disposed in the second holder 2310 and the second drive magnet 2421 may be disposed in the housing 2110 .

[0265] The lens driving device 2000 may include a Hall sensor. The Hall sensor may detect the second driving magnet 2421. The Hall sensor may include a plurality of Hall sensors. The Hall sensor may include a third Hall sensor 2423 and a fourth Hall sensor 2424. The third Hall sensor 2423 and the fourth Hall sensor 2424 may be spaced apart from each other. The third Hall sensor 2423 and the fourth Hall sensor 2424 may be spaced apart such that a gap G2 is formed therebetween. The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the second driving magnet 2421. The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the magnetic force of the second driving magnet 2421. The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the position of the second holder 2310. The third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the position of the third lens 2320.

[0266] The lens driving device 2000 may include a yoke 2425. The yoke 2425 may be disposed between the second driving magnet 2421 and the second holder 2310. The yoke 2425 may be formed in a shape corresponding to the second driving magnet 2421. The yoke 2425 may increase an interaction force between the second driving magnet 2421 and the second coil 2422.

[0267] The lens driving device 2000 may include a first yoke 2430. The first yoke 2430 may be disposed so that an attractive force acts between the first driving magnet 2411 and the first yoke 2430. The first yoke 2430 may be disposed in the housing 2110. The first yoke 2430 may be disposed on the substrate 2140. The first yoke 2430 may be disposed on the first substrate 2141. The attractive force between the first driving magnet 2411 and the first yoke 2430 allows the first holder 2210 to press the ball 2500 toward the guide rail 2130. That is, the attractive force between the first driving magnet 2411 and the first yoke 2430 allows the ball 2500 to be maintained between the first holder 2210 and the guide rail 2130 without being removed.

[0268] The lens driving device 2000 may include a second yoke 2440. The second yoke 2440 may be disposed so that an attractive force acts between the second driving magnet 2421 and the second yoke 2440. The second yoke 2440 may be disposed in the housing 2110. The second yoke 2440 may be disposed on the substrate 2140. The second yoke 2440 may be disposed on the second substrate 2142. The attractive force between the second driving magnet 2421 and the second yoke 2440 allows the second holder 2310 to press the ball 2500 toward the guide rail 2130. That is, the attractive force between the second driving magnet 2421 and the second yoke 2440 allows the ball 2500 to be maintained between the second holder 2310 and the guide rail 2130 without being removed.

[0269] The lens driving device 2000 may include a ball 2500. The ball 2500 may guide the movement of the first holder 2210. The ball 2500 may be disposed between the first holder 2210 and the guide rail 2130. The ball 2500 may guide the movement of the second holder 2310. The ball 2500 may be disposed between the second holder 2310 and the guide rail 2130. The ball 2500 may be formed in a spherical shape. The ball 2500 may roll in the rail groove 2212 of the first holder 2210 and the rail 2133 of the guide rail 2130. The ball 2500 may move in the optical axis direction between the rail groove 2212 of the first holder 2210 and the rail 2133 of the guide rail 2130. The ball 2500 may roll in the rail groove 2312 of the second holder 2310 and the rail 2133 of the guide rail 2130. The balls 2500 can move in the optical axis direction between the rail groove 2312 of the second holder 2310 and the rail 2133 of the guide rail 2130. The balls 2500 can include a plurality of balls. Four balls 2500 are provided in the first holder 2210 and four balls are provided in the second holder 2310, making a total of eight balls 2500.

[0270] The lens driving device 2000 may include a dummy glass 2600. The dummy glass 2600 may be disposed in the housing 2110. The dummy glass 2600 may close a rear opening of the housing 2110. The dummy glass 2600 may be formed to be transparent so that light can pass through.

[0271] The lens driving device 2000 may include a poron 2700. The poron 2700 may be a shock absorbing member. The poron 2700 may minimize impact and noise caused by the movement of the first holder 2210 and the second holder 2310. The poron 2700 may be disposed at a portion where the first holder 2210 collides with the housing 2110. The poron 2700 may be disposed at a portion where the second holder 2310 collides with the housing 2110.

[0272] 53 to 55 are diagrams for explaining the implementation of the zoom function and the autofocus function of the lens driving device according to the first embodiment of the present invention.

[0273] In the first embodiment of the present invention, in an initial state where no current is supplied to the driver 2400, the first lens 2120, the second lens 2220 and the third lens 2320 can be aligned with the optical axis (OA) (see FIG. 53).

[0274] At this time, when a current is applied to the first coil 2412, the second lens 2220 can move along the optical axis (OA) due to electromagnetic interaction between the first coil 2412 and the first drive magnet 2411 (see a in FIG. 54). With the first lens 2120 fixed, a zoom function is performed as the second lens 2220 moves. When a current in a first direction is applied to the first coil 2412, the second lens 2220 can move in a direction approaching the first lens 2120. When a current in a second direction opposite to the first direction is applied to the first coil 2412, the second lens 2220 can move in a direction away from the first lens 2120.

[0275] On the other hand, when a current is applied to the second coil 2422, the third lens 2320 can move along the optical axis (OA) due to electromagnetic interaction between the second coil 2422 and the second drive magnet 2421 (see FIG. 55 b). The autofocus (AF) function is performed by the relative movement of the third lens 2320 with respect to the first lens 2120 and the second lens 2220. When a current in a first direction is applied to the second coil 2422, the third lens 2320 can move in a direction approaching the first lens 2120. When a current in a second direction opposite to the first direction is applied to the second coil 2422, the third lens 2320 can move in a direction away from the first lens 2120.

[0276] A camera device according to a first embodiment of the present invention will be described below with reference to the drawings.

[0277] FIG. 1 is a perspective view of a camera device according to a first embodiment of the present invention, FIG. 2 is a bottom perspective view of the camera device according to the first embodiment of the present invention, FIG. 3 is a plan view of the camera device according to the first embodiment of the present invention, FIG. 4 is a cross-sectional view taken at AA in FIG. 3, FIG. 5 is a cross-sectional view taken at BB in FIG. 3, FIG. 6 is a cross-sectional view taken at CC in FIG. 3, FIG. 7 is an exploded perspective view of the camera device according to the first embodiment of the present invention, FIG. 8 is a perspective view of the camera device according to the first embodiment of the present invention from which the cover member has been omitted, FIG. 56 is a perspective view of a portion of the configuration of the camera device according to the first embodiment of the present invention, and FIG. 57 is an exploded perspective view of the image sensor, filter and related configuration of the camera device according to the first embodiment of the present invention.

[0278] The camera device 10 may include a cover member 3100. The cover member 3100 may be a 'cover can' or a 'shield can'. The cover member 3100 may be arranged to cover the reflection member driving device 1000 and the lens driving device 2000. The cover member 3100 may be arranged outside the reflection member driving device 1000 and the lens driving device 2000. The cover member 3100 may encase the reflection member driving device 1000 and the lens driving device 2000. The cover member 3100 may house the reflection member driving device 1000 and the lens driving device 2000. The cover member 3100 may be made of a metal material. The cover member 3100 may block electromagnetic interference (EMI).

[0279] The cover member 3100 may include an upper plate 3110. The upper plate 3110 may include an opening or a hole. Light may be incident through the opening or the hole of the upper plate 3110. The opening or the hole of the upper plate 3110 may be formed at a position corresponding to the reflective member 1220.

[0280] The cover member 3100 may include a side plate 3120. The side plate 3120 may include a plurality of side plates. The side plate 3120 may include four side plates. The side plate 3120 may include first to fourth side plates. The side plate 3120 may include first and second side plates arranged opposite to each other, and third and fourth side plates arranged opposite to each other.

[0281] The camera device 10 may include a printed circuit board (PCB) 3300. The printed circuit board 3300 may be a substrate or a circuit board. A sensor base 3500 may be disposed on the printed circuit board 3300. The printed circuit board 3300 may be electrically connected to the reflective member driving device 1000 and the lens driving device 2000. The printed circuit board 3300 may include various circuits, elements, controllers, etc. for converting an image formed on the image sensor 3400 into an electrical signal and transmitting the electrical signal to an external device.

[0282] The printed circuit board 3300 may include a marking portion 3310. The marking portion 3310 may be disposed on a rear surface of the printed circuit board 3300.

[0283] The camera device 10 may include a suspension (SUS) 3320. The suspension 3320 may be disposed on the rear surface of the printed circuit board 3300. The suspension 3320 can reinforce the strength of the printed circuit board 3300. The suspension 3320 can dissipate heat generated in the printed circuit board 3300.

[0284] The camera device 10 may include an image sensor 3400. The image sensor 3400 may be disposed on a printed circuit board 3300. Light passing through a lens and a filter 3600 may be incident on the image sensor 3400 to form an image. The image sensor 3400 may be electrically connected to the printed circuit board 3300. As an example, the image sensor 3400 may be coupled to the printed circuit board 3300 by a surface mounting technology (SMT). As another example, the image sensor 3400 may be coupled to the printed circuit board 3300 by a flip chip technology. The image sensor 3400 may be disposed such that its optical axis coincides with that of a lens. The optical axis of the image sensor 3400 and the optical axis of the lens are aligned. The image sensor 3400 may convert light irradiated on an effective image area of ​​the image sensor 3400 into an electrical signal. The image sensor 3400 may include one or more of a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID.

[0285] The camera device 10 may include a sensor base 3500. The sensor base 3500 may be disposed on the printed circuit board 3300. A filter 3600 may be disposed on the sensor base 3500. An opening may be formed in the portion of the sensor base 3500 where the filter 3600 is disposed so that light passing through the filter 3600 can be incident on the image sensor 3400.

[0286] The camera device 10 may include a filter 3600. The filter 3600 may function to block light of a specific frequency band from being incident on the image sensor 3400 among light passing through the lens. The filter 3600 may be disposed between the lens and the image sensor 3400. The filter 3600 may be disposed on the sensor base 3500. The filter 3600 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 3400.

[0287] The camera device 10 may include a substrate 3700. The substrate 3700 may be coupled to the printed circuit board 3300. The substrate 3700 may extend from the printed circuit board 3300. The substrate 3700 may include a terminal electrically coupled to the reflective member driving device 1000. The substrate 3700 may include an extension extending outward.

[0288] The camera device 10 may include a connector 3710. The connector 3710 may be disposed on the substrate 3700. The connector 3710 may be disposed on a lower surface of an extension of the substrate 3700. The connector 3710 may be coupled to a power supply unit of a smartphone, for example.

[0289] The camera device 10 may include a temperature sensor 3800. The temperature sensor 3800 may sense temperature. The temperature sensed by the temperature sensor 3800 may be used for more accurate control of one or more of an image stabilization function, an autofocus function, and a zoom function.

[0290] The camera apparatus 10 may include a driver IC 3900. The driver IC 3900 may be electrically connected to the lens driving apparatus 2000. The driver IC 3900 may be described as one component of the lens driving apparatus 2000. The driver IC 3900 may be electrically connected to the first coil 2412 and the second coil 2422 of the lens driving apparatus 2000. The driver IC 3900 may supply current to the first coil 2412 and the second coil 2422 of the lens driving apparatus 2000. The driver IC 3900 may control at least one of a voltage and a current applied to each of the first coil 2412 and the second coil 2422 of the lens driving apparatus 2000. The driver IC 3900 may be electrically connected to the Hall sensors 2413, 2414, 2423, and 2424. The driver IC 3900 can feedback control the voltage and current applied to the first coil 2412 and the second coil 2422 based on the positions of the second lens 2220 and the third lens 2320 sensed by the Hall sensors 2413 , 2414 , 2423 , and 2424 .

[0291] An optical device according to a first embodiment of the present invention will now be described with reference to the drawings.

[0292] FIG. 58 is a perspective view of the front side of the optical apparatus according to the first embodiment of the present invention, and FIG. 59 is a perspective view of the rear side of the optical apparatus according to the first embodiment of the present invention.

[0293] The optical device 1 may include one or more of a mobile phone, a portable terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation system. The optical device 1 may also include any device for taking images or photographs.

[0294] The optical device 1 may include a body 20. The optical device 1 may include a camera device 10. The camera device 10 may be disposed in the body 20. The camera device 10 may photograph an object. The optical device 1 may include a display 30. The display 30 may be disposed in the body 20. The display 30 may output at least one of a video and an image photographed by the camera device 10. The display 30 may be disposed on a first surface of the body 20. The camera device 10 may be disposed on at least one of the first surface of the body 20 and a second surface opposite to the first surface.

[0295] The camera device 10 according to the first embodiment of the present invention may be a folded camera module. The folding camera module may have a field angle of 15 degrees to 40 degrees. The folding camera module may have a focal length of 18 mm to 20 mm or more. The folding camera module may be used as a rear camera of the optical device 1. A main camera having a field angle of 70 degrees to 80 degrees may be disposed on the rear of the optical device 1. In this case, the folding camera may be disposed next to the main camera. That is, the camera device 10 according to the first embodiment of the present invention may be applied to any one or more of a plurality of rear cameras of the optical device 1. The camera device 10 according to the first embodiment of the present invention may be applied to one of two, three, four or more rear cameras of the optical device 1.

[0296] Meanwhile, the camera device 10 according to the first embodiment of the present invention may also be disposed on the front of the optical device 1. However, if the optical device 1 has one front camera, a wide-angle camera may be applied. If the optical device 1 has two or more front cameras, one of them may be a telephoto camera as in the first embodiment of the present invention. However, as long as the focal length is not longer than that of a rear telephoto camera, a normal camera module that is not a folding camera module and does not have a reflective member may be applied.

[0297] A second embodiment of the present invention will now be described with reference to the drawings. FIG. 60 is a perspective view of a camera module according to the second embodiment of the present invention, FIG. 61 is a perspective view showing the cover disassembled in FIG. 60, FIG. 62 is a plan view showing one side of the camera module according to the second embodiment of the present invention, FIG. 63 is a cross-sectional view showing B-B' in FIG. 62, FIG. 64 is a cross-sectional view showing A-A' in FIG. 62, FIG. 65 is a first exploded perspective view of a camera module according to the second embodiment of the present invention, FIG. 66 is a drawing showing FIG. 63 from a different angle, FIG. 67 is a second exploded perspective view of a camera module according to the second embodiment of the present invention, FIG. 68 is a drawing showing FIG. 67 from a different angle, FIG. 69 is a perspective view of a guide portion according to the second embodiment of the present invention, FIG. 70 is an exploded perspective view of the second lens group and the third lens group according to the second embodiment of the present invention, and FIG. 71 is a perspective view of a substrate according to the second embodiment of the present invention.

[0298] 60 to 71, the camera module 4010 according to the second embodiment of the present invention may include a housing 4100, a first lens assembly 4200, a second lens assembly 4300, a third lens assembly 4400, and a substrate 4500, but may be implemented without excluding some of these configurations, and other additional configurations are not excluded.

[0299] The camera module 4010 according to the second embodiment of the present invention may include a lens driving device. The lens driving device may include a housing 4100, a first lens assembly 4200, a second lens assembly 4300, a third lens assembly 4400, and a driving unit for moving the second lens assembly 4300 and the third lens assembly 4400, but may be implemented without excluding some of these configurations, and other additional configurations are not excluded.

[0300] The camera module 4010 may include a housing 4100. The housing 4100 may form the exterior of the camera module 4010. The housing 4100 may have a hexahedral shape with the inside exposed. The front and rear of the housing 4100 may be open to the outside. At least a portion of the side of the housing 4100 may be open to the outside. The second lens assembly 4200, the third lens assembly 4300, and a substrate 4500 may be disposed in the housing 4100. A space 4102 for accommodating the above-mentioned components may be formed in the housing 4100.

[0301] The camera module 4010 may include a lens assembly, which may be disposed within the housing 4100 or on an exterior surface of the housing 4100.

[0302] The lens assembly may include a first lens assembly 4200. The first lens assembly 4200 may be disposed on a front surface of the housing 4100. The first lens assembly 4200 may be coupled to the housing 4100. The first lens assembly 4200 may be coupled to a front surface of the housing 4100. A rib 4110 protruding outward from other regions may be disposed on a front surface of the housing 4100. A groove 4230 to which the rib 4110 is coupled may be formed on a rear surface of the first lens assembly 4200 facing the front surface of the housing 4100. The first lens assembly 4200 and the housing 4110 may be coupled to each other by coupling the rib 4110 and the groove 4230.

[0303] The first lens assembly 4200 may be disposed in front of the second lens assembly 4300. The first lens assembly 4200 may include a first lens group 4210. The first lens group 4210 may include at least one lens. The first lens group 4210 may be a D-cut lens. A first lens barrel 4212 accommodating the first lens group 4210 may be disposed inside the first lens assembly 4200. The first lens group 4210 may be disposed inside the first lens barrel 4212. A first shock absorbing part 4214 for absorbing a shock with a second lens assembly 4300 (to be described later) may be disposed on a rear surface of the first lens barrel 4212. The first shock absorbing part 4214 is made of a rubber material and can absorb a shock generated when the first lens assembly 4300 comes into contact with the first lens assembly 4300. The first shock absorbing portion 4214 may include a plurality of arc-shaped regions, and the plurality of regions may be disposed to face each other with the first lens group 4210 at the center.

[0304] A limiting portion 4220 may be formed on the rear surface of the first lens assembly 4200, protruding rearward from other regions to limit a moving distance of the second lens assembly 4300, which will be described later. The limiting portion 4220 may be made of a rubber material.

[0305] The first lens group 4210 may be a fixed lens fixed on the front surface of the housing 4100 .

[0306] The lens assembly may include a second lens assembly 4300. The second lens assembly 4300 may be disposed within the housing 4100. The second lens assembly 4300 may be aligned with the first lens assembly 4200 and the third lens assembly 4400. The second lens assembly 4300 may be disposed between the first lens assembly 4200 and the third lens assembly 4400. The second lens assembly 4300 may be moved in the optical axis direction by electromagnetic interaction between a first driving unit 4380 and a second driving unit 4550. The second lens assembly 4300 may be guided in the optical axis direction by a first guide unit 4350.

[0307] The second lens assembly 4300 may include a second lens barrel 4312 in which a second lens group 4310 is disposed, and a first side surface 4330 disposed on one side of the second lens barrel 4312. The second lens barrel 4312 may be formed in a cylindrical shape. The second lens group 4310 may be received inside the second lens barrel 4312. The second lens group 4310 may include at least one lens. A second shock absorbing part 4314 for absorbing a shock with a third lens assembly 4400 (to be described later) is disposed on a rear surface of the second lens barrel 4312, and the second shock absorbing part 4314 is made of a rubber material to absorb a shock generated when the second lens assembly 4400 comes into contact with the third lens assembly 4400. The second shock absorbing part 4314 may include a plurality of regions having an arc shape, and the plurality of regions may be disposed to face each other with the second lens group 4310 as a center.

[0308] The first side 4330 may be formed in a rectangular plate shape. The second lens barrel 4312 may be disposed on an inner surface of the first side 4330. The second lens barrel 4312 may be disposed adjacent to a front end of the first side 4330. The first side 4330 may be formed integrally with the second lens barrel 4312. A first driving unit 4380 may be disposed on an outer surface of the first side 4330. The first side 4330 may be formed with a first support unit 4331 that protrudes outward and supports a side of the first driving unit 4380. A first ball 4390 may be disposed on the outer surface of the first side 4330 outside an arrangement area of ​​the first driving unit 4380. The first ball 4390 may rotate along an inner surface of a first guide unit 4350, which will be described later. Thus, the second lens assembly 4300 may slide along the first guide unit 4350. The first balls 4390 may be provided in a plurality and spaced apart from each other. For example, four first balls 4390 may be provided, two of which are disposed in a region adjacent to a front end of the first side surface 4330, and two of which are disposed in a region adjacent to a rear end of the first side surface 4330. The four first balls 4390 may be disposed in each corner region of the outer surface of the first side surface 4330. The length of the first side surface 4330 in the optical axis direction may be longer than the length of the second lens barrel 4312 in the optical axis direction. The length of the first side surface 4330 in the optical axis direction may be greater than the sum of the lengths of the second lens barrel 4312 and a third lens barrel 4412 (described later).

[0309] The lens assembly may include a third lens assembly 4400. The third lens assembly 4400 may be disposed within the housing 4100. The third lens assembly 4400 may be aligned with the first lens assembly 4200 and the second lens assembly 4300. The third lens assembly 4400 may be disposed behind the second lens assembly 4300. The third lens assembly 4400 may be moved in the optical axis direction by electromagnetic interaction between a third driving unit 4480 and a fourth driving unit 4570. The third lens assembly 4400 may be guided in its movement in the optical axis direction by a second guide unit 4450.

[0310] The third lens assembly 4400 may include a third lens barrel 4412 in which a third lens group 4410 is disposed, and a second side surface 4430 disposed on one side of the third lens barrel 4412. The third lens group 4410 is received inside the third lens barrel 4412. The third lens group 4410 may include at least one lens.

[0311] The second side 4430 may be formed in a rectangular plate shape. The third lens barrel 4412 may be disposed on an inner surface of the second side 4430. The third lens barrel 4412 may be disposed adjacent to a rear end of the second side 4430. The second side 4430 may be formed integrally with the third lens barrel 4412. The third driving part 4480 may be disposed on an outer surface of the second side 4430. The second side 4430 may be formed with a second support part 4431 protruding outward and supporting a side of the third driving part 4480. A second ball 4490 may be disposed on the outer surface of the second side 4430 outside an arrangement area of ​​the second driving part 4480. The second ball 4490 may rotate along an inner surface of a second guide part 4450 described later. Thus, the third lens assembly 4400 may slide along the second guide part 4450. The second balls 4490 may be provided in a plurality and spaced apart from each other. For example, four second balls 4490 may be provided, two of which are disposed in a region adjacent to a front end of the second side surface 4430, and two of which are disposed in a region adjacent to a rear end of the second side surface 4430. The four second balls 4490 may be disposed in each corner region of the outer surface of the second side surface 4430. The length of the second side surface 4430 in the optical axis direction may be longer than the length of the third lens barrel 4412 in the optical axis direction. The length of the second side surface 4430 in the optical axis direction may be greater than the sum of the lengths of the second lens barrel 4312 and the third lens barrel 4412 in the optical axis direction.

[0312] Meanwhile, a fourth lens 4140 may be disposed on a rear surface of the housing 4100 disposed behind the third lens barrel 4412. The fourth lens 4140 may be disposed to face the first lens 4210, the second lens 4310, and the third lens 4410 in the optical axis direction. The fourth lens 4140 may be fixed in the same manner as the first lens 4210.

[0313] Also, a zooming function can be realized by moving the second lens 4310 and the third lens 4410 in the optical axis direction, but is not limited thereto, and an autofocusing (AF) function may be realized by moving the second lens 4310 and the third lens 4410 in the optical axis direction. Also, a zooming function may be realized by moving one of the second lens 4310 and the third lens 4410, and an autofocusing function may be realized by moving the other lens.

[0314] The camera module 4010 may include a guide unit. The guide unit may be disposed in the housing 4100. The guide unit may be assembled in the housing 4100. The guide unit may guide the movement of the second lens assembly 4300 and the third lens assembly 4400 in the optical axis direction.

[0315] The guide portion may include a first guide portion 4350. The first guide portion 4350 may be disposed within the housing 4100. The first guide portion 4350 may be disposed on one side of the second and third lens assemblies 4300 and 4400. The first guide portion 4350 may be disposed on the outer side of the first side surface 4330.

[0316] A front surface of the first guide part 4350 may be coupled to a rear surface of the first lens assembly 4200, and a rear surface of the first guide part 4350 may be coupled to a bottom surface of the space 4102 in the housing 4100. For this purpose, a coupling part 4352 may be disposed at a front end of the first guide part 4350, protruding outward from other regions and having a hole 4353 through which the rib 4110 passes. Thus, the rib 4110 of the housing 4100 may be coupled to the groove 4230 through the hole 4353. A rib 4355 may be formed at a rear surface of the first guide part 4350, protruding rearward from other regions. A groove (not shown) into which the rib 4355 is coupled may be disposed at a bottom surface of the housing 4100 facing the rib 4355. With the above-mentioned structure, the first guide part 4350 may be firmly fixed to the space 4102 in the housing 4100.

[0317] The first guide part 4350 may include a first opening 4370 penetrating from the inner surface to the outer surface. The first actuator 4380 and the second actuator 4550 may be disposed to face each other through the first opening 4370 in a direction perpendicular to the optical axis direction.

[0318] First grooves 4364 and 4368 may be formed on an inner surface of the first guide part 4350. The first ball 4390 may slide or shift along the first grooves 4364 and 4368. The first grooves 4364 and 4368 may be disposed on guidelines 4362 and 4366. In detail, the first guide part 4350 may include a first guide line 4362 and a second guide line 4366. The first guide line 4362 and the second guide line 4366 may be disposed parallel to each other, and the first opening 4370 may be disposed therebetween. The first guide line 4362 and the second guide line 4366 may have a length direction defined in the optical axis direction.

[0319] An inner surface of the first guide line 4362 facing the first side surface 4330 may be formed with a 1-1 groove 4364 in which the first ball 4390 moves. An inner surface of the second guide line 4366 facing the first side surface 4330 may be formed with a 1-2 groove 4368 in which the first ball 4390 moves.

[0320] The first grooves 4364, 4368 may contact at least a portion of the first ball 4390. One of the first grooves 4364, 4368 may contact a portion of the first ball 4390 at one point, and the other of the first grooves 4364, 4368 may contact another portion of the first ball 4390 at two points. For example, the 1-1 groove 4364 may have a U-shaped cross section and may contact the first ball 4390 at one point, and the 1-2 groove 4368 may have a V-shaped cross section and may contact the first ball 4390 at two points. According to the second embodiment of the present invention, four first balls 4390 are arranged in each corner region of the outer surface of the first side 4330, so that two first balls 4390 arranged to face the first guide line 4362 can move along the 1-1 groove 4364, and two first balls 4390 arranged to face the second guide line 4366 can move along the 1-2 groove 4368.

[0321] Meanwhile, the first guide portion 4350 may include a connecting portion 4372 connecting the first guide line 4362 and the second guide line 4366. The connecting portion 4372 may be screwed to an inner surface of the housing 4100. A plurality of the connecting portions 4372 may be provided and disposed on both sides of the first opening 4370.

[0322] The guide portion may include a second guide portion 4450. The second guide portion 4450 may be disposed within the housing 4100. The second guide portion 4450 may be disposed on the other of the second and third lens assemblies 4300, 4400. The second guide portion 4450 may be disposed on the outer side of the second side surface 4430.

[0323] A front surface of the second guide part 4450 may be coupled to a rear surface of the first lens assembly 4200, and a rear surface of the second guide part 4450 may be coupled to a bottom surface of the space 4102 in the housing 4100. For this purpose, a coupling part 4452 may be disposed at a front end of the second guide part 4450, protruding outward from other regions and having a hole 4453 through which the rib 4110 passes. Thus, the rib 4110 of the housing 4100 may be coupled to the groove 4230 through the hole 4453. A rib 4455 may be formed at a rear surface of the second guide part 4450, protruding rearward from other regions. A groove (not shown) into which the rib 4455 is coupled may be disposed at a bottom surface of the housing 4100 facing the rib 4455. With the above-mentioned structure, the second guide part 4450 may be firmly fixed to the space 4102 in the housing 4100.

[0324] The second guide part 4450 may include a second opening 4470 penetrating from the inner surface to the outer surface. The third actuator 4480 and the fourth actuator 4570 may be disposed to face each other in a direction perpendicular to the optical axis direction through the second opening 4470.

[0325] Second grooves 4464 and 4468 may be formed on an inner surface of the second guide part 4450. The second ball 4490 may slide or shift along the second grooves 4464 and 4468. The second grooves 4464 and 4468 may be disposed on the guide lines 4462 and 4466. In detail, the second guide part 4450 may include a third guide line 4462 and a fourth guide line 4466. The third guide line 4462 and the fourth guide line 4466 may be disposed parallel to each other, and the second opening 4470 may be disposed therebetween. The third guide line 4462 and the fourth guide line 4466 may have a length direction defined in the optical axis direction.

[0326] A 2-1 groove 4464 in which the second ball 4490 moves may be formed on an inner surface of the third guide line 4462 facing the second side surface 4430. A 2-2 groove 4468 in which the second ball 4490 moves may be formed on an inner surface of the fourth guide line 4466 facing the second side surface 4330.

[0327] The second grooves 4464, 4468 may contact at least a portion of the second ball 4490. One of the second grooves 4464, 4468 may contact a portion of the second ball 4490 at one point, and the other of the second grooves 4464, 4468 may contact another portion of the second ball 4490 at two points. For example, the 2-1 groove 4464 has a "V" shaped cross section and may contact the second ball 4490 at two points, and the 2-2 groove 4468 has a "U" shaped cross section and may contact the second ball 4490 at one point. According to the second embodiment of the present invention, four second balls 4490 are arranged in each corner region of the outer surface of the second side 4430, so that two first balls 4490 arranged to face the third guideline 4462 can move along the 2-1 groove 4464, and two second balls 4490 arranged to face the fourth guideline 4466 can move along the 2-2 groove 4468.

[0328] Meanwhile, the second guide portion 4450 may include a connecting portion 4472 connecting the third guide line 4462 and the fourth guide line 4466. The connecting portion 4472 may be screwed to an inner surface of the housing 4100. A plurality of the connecting portions 4472 may be provided and disposed on both sides of the second opening 4470, respectively.

[0329] The camera module 4010 may include a first driving unit 4380. The first driving unit 4380 may be disposed on the second lens assembly 4300. The first driving unit 4380 may include a magnet. The first driving unit 4380 may be disposed to face the second driving unit 4550. The first driving unit 4380 may move the second lens assembly 4300 in the optical axis direction by electromagnetic interaction with the second driving unit 4550. The first driving unit 4380 is magnetized at a front side with a first polarity and at a rear side with a second polarity. The first driving unit 4380 may be formed in a hexahedron shape. Meanwhile, a yoke (not shown) may be interposed between the first side surface 4330 and the first driving unit 4380 to prevent leakage of the magnetic field of the first driving unit 4380.

[0330] The camera module 4010 may include a third driving unit 4480. The third driving unit 4480 may be disposed on the third lens assembly 4400. The third driving unit 4480 may include a magnet. The third driving unit 4480 may be disposed to face the fourth driving unit 4570. The third driving unit 4480 may move the third lens assembly 4400 in the optical axis direction by electromagnetic interaction with the fourth driving unit 4570. The third driving unit 4480 is magnetized at a front side with a first polarity and at a rear side with a second polarity. The third driving unit 4480 may be formed in a hexahedron shape. Meanwhile, a yoke (not shown) may be interposed between the second side surface 4430 and the third driving unit 4480 to prevent leakage of a magnetic field of the third driving unit 4480.

[0331] The camera module 4010 may include a second driving unit 4550. The second driving unit 4550 may be disposed in the housing 4100. The second driving unit 4550 may be disposed in the first opening 4370. The second driving unit 4550 may include a coil. The second driving unit 4550 may be coupled to a substrate 4500, which will be described later. The second driving unit 4550 may receive a current from the substrate 4500. The second driving unit 4550 may have a square-shaped cross section.

[0332] The camera module 4010 may include a fourth driving unit 4570. The fourth driving unit 4570 may be disposed in the housing 4100. The fourth driving unit 4570 may be disposed in the second opening 4470. The fourth driving unit 4570 may include a coil. The fourth driving unit 4570 may be coupled to a board 4500, which will be described later. The fourth driving unit 4570 may receive a current from the board 4500. The fourth driving unit 4570 may have a square-shaped cross section.

[0333] The camera module 4010 may include yokes 4320 and 4420. The yokes 4320 and 4420 may be disposed outside the second actuator 4550 and the fourth actuator 4570. The yokes 4320 and 4420 may be coupled to a substrate 4500, which will be described later. The yokes 4320 and 4420 may prevent leakage of electric fields from the second actuator 4550 and the fourth actuator 4570.

[0334] The yokes 4320, 4420 may include a first yoke 4320. The first yoke 4320 may be coupled to the substrate 4500. The first yoke 4320 may be disposed outside the second actuator 4550. At least a portion of the substrate 4500 may be disposed between the first yoke 4320 and the second actuator 4550. The first yoke 4320 may be coupled to one side of the housing 4100.

[0335] The yokes 4320 and 4420 may include a second yoke 4420. The second yoke 4420 may be coupled to the substrate 4500. The second yoke 4420 may be disposed outside the fourth actuator 4570. At least a portion of the substrate 4500 may be disposed between the second yoke 4420 and the fourth actuator 4570. The second yoke 4420 may be coupled to the other side of the housing 4100.

[0336] A rib 4124 may be formed on a side surface of the housing 4100 to connect the yokes 4320 and 4420, and the yokes 4320 and 4420 may have holes through which the rib 4124 passes.

[0337] The camera module 4010 may include a substrate 4500. The substrate 4500 may be disposed in the housing 4100. The second driving unit 4550 and the fourth driving unit 4570 may be coupled to the substrate 4500. Sensors 4555 and 4575 may be disposed on the substrate 4500. The substrate 4500 may be electrically connected to the second driving unit 4550, the fourth driving unit 4570, and the sensors 4555 and 4575 to supply current thereto.

[0338] The substrate 4500 may include a printed circuit board (PCB). The substrate 4500 may include a flexible printed circuit board (FPCB).

[0339] The substrate 4500 may include a first substrate 4510, a second substrate 4520, and a connecting substrate 4530. The first substrate 4510 may be disposed on the outer side of the first side surface 4330. The first substrate 4510 may be disposed parallel to the first side surface 4330. The second actuator 4550 may be disposed on an inner surface of the first substrate 4510, and the first yoke 4320 may be disposed on an outer surface thereof.

[0340] The second substrate 4520 may be disposed on an outer side of the second side surface 4430. The second substrate 4520 may be disposed parallel to the second side surface 4430. The fourth actuator 4570 may be disposed on an inner surface of the second substrate 4520, and the second yoke 4420 may be disposed on an outer surface of the second substrate 4520. The second substrate 4520 may be disposed parallel to the first substrate 4510.

[0341] The connecting substrate 4530 may be formed integrally with the first substrate 4510 and the second substrate 4520 by connecting the first substrate 4510 and the second substrate 4520. The connecting substrate 4530 may be disposed perpendicular to the first substrate 4510 or the second substrate 4520.

[0342] The camera module 4010 may include sensors 4555 and 4575. The sensors 4555 and 4575 may include a first sensor 4555 disposed on an inner surface of the first substrate 4510 and a second sensor 4575 disposed on an inner surface of the second substrate 4520. The sensors 4555 and 4575 may include a Hall sensor. Based on information sensed by the sensors 4555 and 4575, a control unit may sense the positions of the second lens assembly 4300 and the third lens assembly 4400.

[0343] The first sensor 4555 may be disposed inside the second driving part 4550. The first sensor 4555 may be disposed to face the first driving part 4380 and detect the first driving part 4380.

[0344] The second sensor 4575 may be disposed inside the fourth driving part 4570. The second sensor 4575 may be disposed to face the third driving part 4480 and detect the third driving part 4480.

[0345] Meanwhile, in the second embodiment of the present invention, the sensors 4555 and 4575 detect the positions of the second lens assembly 4300 and the third lens assembly 4400 by the magnetic field of the first driving unit 4380 or the third driving unit 4480, but the second lens assembly 4300 and the third lens assembly 4400 may be provided with a separate sensor magnet (not shown) whose magnetic field is detected by the first sensor 4555 or the second sensor 4575, respectively.

[0346] The camera module 4010 according to the second embodiment of the present invention is characterized in that the optical performance of the second lens 4310 and the third lens 4410 is measured via inclined surfaces arranged on the outer surfaces of the second lens assembly 4300 and the third lens assembly 4400.

[0347] FIG. 72 is a perspective view illustrating the installation state of the second lens assembly and the third lens assembly in the housing according to the second embodiment of the present invention, and FIG. 73 is a cross-sectional view of the protrusion according to the second embodiment of the present invention.

[0348] 72 and 73, a second lens assembly 4300 and a third lens assembly 4400 according to a second embodiment of the present invention may include protrusions 4313 and 4413, respectively.

[0349] The protrusions 4313 and 4413 may include a first protrusion 4313 disposed on a side of the second lens barrel 4312 and a second protrusion 4413 disposed on a side of the third lens barrel 4412. The housing 4100 may include an opening 4105 for exposing the second lens barrel 4312 and the third lens barrel 4412 to the outside, and the protrusions 4313 and 4413 may be exposed to the outside through the opening 4105. That is, the protrusions 4313 and 4413 are visible to the outside of the housing 4100 through the opening 4105 for a performance inspection. In some cases, a structure in which the protrusions 4313 and 4413 protrude to the outside of the housing 4100 may be realized by adjusting the protruding height of the protrusions 4313 and 4413.

[0350] The protrusions 4313, 4413 may include inclined surfaces 4314, 4414. The inclined surfaces 4314, 4414 may be disposed on the outer surfaces of the protrusions 4313, 4413 that protrude outward.

[0351] In detail, the protrusions 4313, 4413 may have sides defined by a side surface of one end 4313a, 4413a and a side surface of the other end 4313b, 4413b, and the inclined surface 4314, 4414 may be disposed between the one end 4313a, 4413a and the other end 4313b, 4413b. For example, the inclined surface 4314, 4414 may have a shape in which a length of protrusion from a side surface of the second lens barrel 4312 or a side surface of the third lens barrel 4412 increases as the protrusion moves from the one end 4313a, 4413a to the other end 4313b, 4413b. Thus, the heights of the one end 4313a, 4413a and the other end 4313b, 4413b defined from the side surface of the second lens barrel 4312 or the side surface of the third lens barrel 4412 may be different from each other.

[0352] Meanwhile, in FIG. 73, the one side end 4313a, 4413a is shown to protrude a predetermined distance from the side of the second lens barrel 4312 or the side of the third lens barrel 4412, but this is not limited to this, and the one side end 4313a, 4413a may be defined by the side of the second lens barrel 4312 or the side of the third lens barrel 4412.

[0353] According to the above structure, light irradiated through an externally disposed light emitting unit is reflected by the inclined surfaces 4314 and 4414, and the reflected light is sensed by the light receiving unit, thereby measuring optical performance such as descent and tilt of the second lens group 4310 or the third lens group 4410.

[0354] As shown in the drawings, a part of the outer surface of the protrusion 4313, 4413 may have the inclined surface 4314, 4414, and the remaining part may have a flat surface 4315, 4415 or a curved surface having a predetermined curvature.

[0355] Alternatively, the inclined surfaces 4314 and 4414 may be formed on the entire outer surfaces of the protrusions 4313 and 4413, so that the inclined surfaces 4314 and 4414 may connect one side end and the other side end of the protrusions 4313 and 4413.

[0356] Additionally, the inclined surfaces 4314, 4414 may include curved surfaces having a predetermined curvature.

[0357] Meanwhile, since the space inside the housing 4100 should be sealed from other areas after performance measurement is completed, the camera module 4010 may include a cover 4020 that covers the opening 4105. For example, the cover 4020 may be a tape coated with an adhesive.

[0358] Also, as shown in the drawings, the first protrusions 4313 and the second protrusions 4413 may each be provided in a plurality and disposed on a side surface of the second lens barrel 4312 and a side surface of the third lens barrel 4412 so as to be spaced apart in the optical axis direction. In this case, the distance between the plurality of first protrusions 4313 or the distance between the plurality of second protrusions 4413 in the optical axis direction may be 0.2 mm to 3 mm. For example, the distance between the plurality of first protrusions 4313 or the plurality of second protrusions 4413 in the optical axis direction may be 0.7 mm.

[0359] According to the above-mentioned structure, not only can the optical performance of the lens be easily measured through the protrusion during the assembly process of the camera module, but also the internal structure of the module can be easily maintained during use.

[0360] Meanwhile, in the second embodiment of the present invention, the first protrusion 4313 and the second protrusion 4413 have the same shape, but are not limited thereto, and the first protrusion 4313 and the second protrusion 4413 may have different shapes. As an example, the angle of the inclined surface 4314 disposed on the first protrusion 4313 and the angle of the inclined surface 4414 disposed on the second protrusion 4413 may be different.

[0361] As another example, the first inclined surface 4314 disposed in the first protrusion 4313 may be disposed at one end of the first protrusion 4313, and the second inclined surface 4414 disposed in the second protrusion 4413 may be disposed at the other end of the second protrusion 4413. Here, the one end of the first protrusion 4313 and the other end of the second protrusion 4413 may be symmetrical regions based on the optical axis direction.

[0362] Furthermore, it goes without saying that the shape between the plurality of first protrusions 4313 or the shape between the plurality of second protrusions 4413 can also be realized to have different shapes including the above-mentioned structures.

[0363] 74 and 75 are diagrams illustrating modified examples of the formation of an inclined surface in a camera module according to the second embodiment of the present invention.

[0364] 74 and 75, the second lens assembly 4300 and the third lens assembly 4400 may include a groove 4700. In this modification, this may be realized by the bottom surface of the groove 4700.

[0365] In detail, a slope 4720 may be formed on the bottom surface of the groove 4700 such that the distance to the side of the second lens barrel 4312 or the third lens barrel 4412 becomes closer or farther from one side to the other side. As a result, light is reflected by the slope 4720, so that the optical performance of the camera module 4010 can be tested.

[0366] The grooves 4700 may be provided in a plurality and may be spaced apart in the optical axis direction on a side surface of the second lens barrel 4312 or may be spaced apart in the optical axis direction on a side surface of the third lens barrel 4412. Similarly, the distance between the grooves 4700 may be 0.2 mm to 3 mm. For example, the distance between the grooves 4700 may be 0.7 mm.

[0367] Also, the inclined surface 4720 is formed on the entire bottom surface of the groove 4700, but as shown in the drawing, a part of the bottom surface of the groove 4700 may be formed with the inclined surface 4720, and the remaining part may be formed with a flat surface 4710 or a curved surface having a predetermined curvature. Thus, an inner peripheral surface 4730 of the groove 4700 connecting a side surface of the second lens barrel 4312 or a side surface of the third lens barrel 4412 to the flat surface 4710 may be formed to be perpendicular to the flat surface 4710.

[0368] On the other hand, it goes without saying that the inclined surface 4720 can also be realized by a curved surface having a predetermined curvature.

[0369] Meanwhile, in the second embodiment of the present invention, an example is given in which the groove 4700 disposed in the second lens barrel 4312 and the groove 4700 disposed in the third lens barrel 4412 are the same, but this is not limited thereto, and the shapes of the groove 4700 disposed in the second lens barrel 4312 and the groove 4700 disposed in the third lens barrel 4412 may be different.

[0370] In one example, the angle of the inclined surface of the groove 4700 disposed in the second lens barrel 4312 and the angle of the inclined surface of the groove 4700 disposed in the third lens barrel 4412 may be different.

[0371] In another example, the inclined surface of the groove 4700 disposed in the second lens barrel 4312 may be disposed at one end of the groove 4700, and the inclined surface of the groove 4700 disposed in the third lens barrel 4412 may be disposed at the other end of the groove 4700. Here, the one end and the other end of the groove 4700 may be symmetrical regions based on the optical axis direction.

[0372] Furthermore, it goes without saying that the plurality of groove shapes disposed in the second lens barrel 4312 or the plurality of groove shapes disposed in the third lens barrel 4412 may also be realized to have different shapes including the above-mentioned structures.

[0373] Although the first and second embodiments of the present invention have been described separately above, the lens driving device 2000 of the first embodiment can be replaced by the camera module 4010 of the second embodiment. Furthermore, a portion of the configuration of the lens driving device 2000 of the first embodiment may be omitted, and a portion of the configuration of the camera module 4010 of the second embodiment may be applied. For example, the projections 4313, 4413 and / or the groove 4700 of the second embodiment may be applied to the lens driving device 2000 of the first embodiment. Conversely, a portion of the configuration of the camera module 4010 of the second embodiment may be omitted, and a portion of the configuration of the lens driving device 2000 of the first embodiment may be applied.

[0374] Although the embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be embodied in other specific forms without changing the technical concept or essential features of the present invention. Therefore, it should be understood that the embodiments described above are illustrative in all respects and are not limiting.

Claims

1. housing; a holder disposed within the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a mover rigid coupled to said holder; a damper coupled to the mover rigid; The actuator device according to claim 1, wherein the mover rigid includes a protrusion that is coupled to the housing by the damper.

2. The actuator device of claim 1 , wherein the housing includes a groove in which at least a portion of the protrusion is disposed.

3. 3. The actuator device according to claim 2, wherein the groove of the housing is open to the outside of the housing.

4. 4. The actuator device according to claim 2, wherein the protrusion of the mover rigid includes a first protruding region protruding from one side and a second protruding region protruding from the other side.

5. 5. The actuator device according to claim 4, wherein the groove of the housing includes a first groove in which at least a portion of the first protruding region is disposed and a second groove in which at least a portion of the second protruding region is disposed.

6. The actuator device according to claim 1 , wherein the protrusion is disposed in a central region of the mover rigid.

7. 6. The actuator device according to claim 2, wherein the groove of the housing is larger than the protruding portion of the mover rigid and is spaced apart from the protruding portion in an initial state and when driven.

8. 6. The actuator device according to claim 2, wherein the groove of the housing and the protrusion of the mover rigid can come into contact with each other due to an external impact.

9. A stationary part including a housing; a moving part that moves relative to the fixed part; A moving plate disposed between the fixed part and the moving part; and a damper disposed between the fixed part and the moving part; An actuator device, wherein the moving part includes a mover rigid that is attached to the housing by the damper.

10. housing; a holder disposed within the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a mover rigid that couples with the holder; and The mover rigid is characterized in that it includes a damper that connects the mover rigid and the housing. Ctuator device.

11. The actuator device of claim 10 , wherein the first portion of the housing is disposed between the mover rigid and the moving plate.

12. The actuator device according to claim 11, wherein the damper is disposed on at least one of an upper portion and a lower portion of the first portion of the housing.

13. a first magnet disposed on the mover rigid; and a second magnet disposed in the housing and generating a repulsive force with the first magnet; 13. The actuator device according to claim 11 or 12, wherein at least a portion of the second magnet is disposed between the first magnet and the moving plate, and is disposed on an opposite side of the moving plate with respect to the first portion of the housing.

14. the mover rigid includes a main body portion disposed on an opposite side of the moving plate with respect to the first portion of the housing, a coupling portion extending from the main body portion and coupled to the holder, and a protrusion protruding from the main body portion, The actuator device according to claim 11 , wherein the damper connects the protrusion of the mover rigid and the housing.

15. The housing includes a groove. At least a portion of the protrusion of the mover rigid is disposed in the groove of the housing; The actuator device of claim 14 , wherein at least a portion of the damper is disposed in the groove of the housing between the protrusion of the mover rigid and the housing.

16. 16. The actuator device according to claim 15, wherein the groove of the housing has a first groove portion and a second groove portion recessed from the first groove portion, and at least a portion of the damper is disposed in the second groove portion of the housing.

17. 17. The actuator device according to claim 14, wherein the protrusion of the mover rigid includes a first protrusion formed on an upper surface of the main body of the mover rigid, and a second protrusion formed on a lower surface of the main body of the mover rigid.

18. the housing includes a first surface facing the upper surface of the body portion of the mover rigid and a second surface facing the lower surface of the body portion of the mover rigid, the housing includes a first groove formed in the first surface of the housing and a second groove formed in the second surface of the housing, At least a portion of the first protrusion of the mover rigid is disposed in the first groove of the housing, The actuator device according to claim 17 , wherein at least a portion of the second protrusion of the mover rigid is disposed in the second groove of the housing.

19. Printed circuit boards; an image sensor disposed on the printed circuit board; An actuator device according to any one of claims 1 to 8 and 10 to 18; and A camera device comprising: the reflective member of the actuator device; and a lens disposed in an optical path formed by the image sensor.

20. Body:

20. A camera device according to claim 19, disposed on the body; and An optical instrument, comprising: a display disposed on the body and outputting at least one of a video and an image captured by the camera device.

Images