Lens driving device

Abstract

Embodiments of the present application relate to a lens driving device including a fixed portion, first and second moving portions arranged in the fixed portion, a first driving magnet arranged in the first moving portion, a second driving magnet arranged in the second moving portion, a first coil arranged in the fixed portion at a position corresponding to the first driving magnet, and a second coil arranged in the fixed portion at a position corresponding to the second driving magnet, wherein a center of the first coil is located in front of a center of the second coil in an optical axis direction, and a portion of the first coil overlaps the second coil in a first direction perpendicular to the optical axis direction.

Description

Technical Field

[0001] This invention relates to a lens driving device. Background Technology

[0002] A camera device is a device that takes pictures or videos of a subject and is installed in optical devices such as smartphones, drones, and vehicles.

[0003] In recent camera devices, in order to improve image quality, there is a need for optical image stabilization (OIS) to correct image shake caused by user movement, autofocus (AF) to automatically adjust the distance between the image sensor and the lens to align with the lens focal length, and zoom function to increase or decrease the magnification of distant subjects through zoom lenses.

[0004] Furthermore, as the demand for high-performance zoom capabilities and high precision in camera modules increases, the required travel length is also increasing, making it necessary to develop a technology that can improve accuracy while achieving a long travel length. Summary of the Invention

[0005] Technical topics

[0006] This embodiment aims to provide a lens driving device that provides continuous zoom and autofocus functions.

[0007] In addition, it is intended to provide a lens driving device that can minimize damage during the assembly stage, improve driving performance, and minimize noise generation.

[0008] In addition, it is intended to provide a lens driving device with enhanced driving performance.

[0009] In addition, the aim is to provide a lens driving device with minimized size.

[0010] The technical problem to be solved by the present invention is to provide a lens driving device driven by a magnet including void, and a camera module including the lens driving device.

[0011] Technical solution

[0012] The lens driving device according to this embodiment includes: a fixed part; a movable part disposed in the fixed part; a driving magnet disposed in the movable part; a coil disposed at a position corresponding to the driving magnet; a guide rail connected to the fixed part; and a ball disposed between the guide rail and the movable part, wherein the fixed part includes a housing and a cover, the housing includes a protrusion, the cover is connected to the protrusion of the housing, and wherein the protrusion of the housing can be inserted into the cover through the guide rail.

[0013] The protrusion of the housing includes: a first portion disposed on a guide rail; and a second portion extending from the first portion and disposed within the cover, wherein the second portion of the protrusion of the housing may have a smaller width than the first portion.

[0014] The protrusions of the housing may include a first protrusion and a second protrusion, wherein a second portion of the first protrusion may have a wider width than a second portion of the second protrusion.

[0015] The first portion of the first protrusion and the first portion of the second protrusion may have the same width.

[0016] The guide rail includes four holes in which the protrusions of the housing are arranged. Two of the four holes of the guide rail are formed to have a shape and diameter corresponding to the protrusions of the housing, and the other two holes of the guide rail may be formed to have a different shape from the protrusions of the housing or have a larger diameter than the protrusions of the housing.

[0017] The cover may include two holes and two recesses, with protrusions of the housing arranged in the two holes and two recesses.

[0018] One of the two holes in the cover is formed to have a shape and diameter corresponding to the protrusion of the shell, wherein the other of the two holes in the cover may be formed to have a different shape from the protrusion of the shell or to have a diameter larger than the diameter of the protrusion of the shell.

[0019] Each of the two recesses of the cover may be formed in a shape different from the protrusion of the shell or have a diameter larger than that of the protrusion of the shell.

[0020] The moving part may include a track groove in which balls are arranged, and the length of the track groove of the moving part may be 2 to 4 times the diameter of the balls.

[0021] The track groove of the moving part includes a first track groove and a second track groove arranged on one side of the driving magnet, and a third track groove and a fourth track groove arranged on the other side of the driving magnet, wherein the first track groove and the second track groove can be spaced apart from each other by a distance of two to three times the diameter of the ball.

[0022] The guide rail includes a track groove formed at a position corresponding to the first track groove and the second track groove, wherein the guide rail may be formed as a plane at a position corresponding to the third track groove and the fourth track groove.

[0023] The movable part includes a first holder and a second holder, wherein the first holder includes a first surface facing the cover and a plurality of protrusions formed on the first surface and in contact with the cover, and wherein the second holder may include a second surface facing the first holder and a plurality of protrusions formed on the second surface and in contact with the second holder.

[0024] The lens driving device may include a foam (poron) arranged on the fixing part and in contact with the first retainer and the second retainer.

[0025] The camera device according to this embodiment includes: a printed circuit board; an image sensor disposed on the printed circuit board; and a lens driving device.

[0026] The optical device according to this embodiment includes: a main body; a camera device disposed on the main body; and a display disposed on the main body and outputting at least one of a video and an image captured by the camera device.

[0027] The lens driving device of this embodiment includes: a housing including a protrusion; a cover connected to the protrusion of the housing; a retainer disposed within the housing; a driving magnet disposed on the retainer; a coil disposed at a position corresponding to the driving magnet; a guide rail connected to the protrusion of the housing; and a ball disposed between the guide rail and the retainer, wherein the protrusion of the housing may include: a first portion disposed on the guide rail; and a second portion extending from the first portion and disposed on the cover.

[0028] The second portion of the protrusion of the housing may have a smaller width than the first portion.

[0029] The protrusions of the housing may include a first protrusion and a second protrusion, wherein a second portion of the first protrusion may have a wider width than a second portion of the second protrusion.

[0030] The guide rail includes a plurality of holes in which the protrusions of the housing are arranged. Some of the holes in the guide rail are formed as regular holes, which are formed with a shape and diameter corresponding to the protrusions of the housing. Some of the remaining holes in the guide rail may be formed as elongated holes, which are formed with a shape different from that of the protrusions of the housing.

[0031] The lens driving device according to this embodiment includes: a housing with a protrusion; a cover connected to the protrusion of the housing; a retainer disposed within the housing; a driving magnet disposed on the retainer; a coil disposed at a position corresponding to the driving magnet; a guide rail connected to the protrusion of the housing; and a ball disposed between the guide rail and the retainer, wherein the guide rail includes a hole in which the protrusion of the housing is disposed, wherein the cover includes a hole or groove in which the protrusion of the housing is disposed, and wherein the diameter of the hole in the guide rail may be larger than the diameter of the hole or groove in the cover.

[0032] The lens driving device according to this embodiment includes: a fixed part; a first moving part and a second moving part disposed in the fixed part; a first driving magnet disposed on the first moving part; a second driving magnet disposed on the second moving part; a first coil disposed on the fixed part and disposed at a position corresponding to the first driving magnet; and a second coil disposed on the fixed part and disposed at a position corresponding to the second driving magnet, wherein, in the optical axis direction, the center of the first coil is disposed in front of the center of the second coil, and wherein a portion of the first coil may overlap with the second coil in a first direction perpendicular to the optical axis direction.

[0033] The first coil may include a portion that does not overlap with the second coil in the first direction.

[0034] In a second direction perpendicular to both the optical axis and the first direction, the center of the first coil can be positioned at a height corresponding to the center of the second coil.

[0035] The fixed part includes a housing and a first lens disposed in the housing, wherein the first movable part includes: a first retainer disposed in the housing; and a second lens disposed on the first retainer, wherein the second movable part includes: a second retainer disposed in the housing; and a third lens disposed in the second retainer, and wherein the second lens may be disposed between the first lens and the third lens.

[0036] The first coil can be formed to have the same size as the second coil and is arranged closer to the first lens than the second coil.

[0037] A portion of the first driving magnet may overlap with the second driving magnet in the first direction.

[0038] The first driving magnet is formed to have the same size as the second driving magnet and can be arranged closer to the first lens than the second driving magnet.

[0039] The lens driving device includes a first Hall sensor and a second Hall sensor disposed in the cavity of the first coil and detecting the first driving magnet. The first driving magnet includes a first magnet portion and a second magnet portion, each having an N pole and a S pole; and a neutral portion or gap disposed between the first magnet portion and the second magnet portion. The size of the neutral portion or gap in the optical axis direction may be smaller than the size of the cavity of the first coil and larger than the distance between the first Hall sensor and the second Hall sensor.

[0040] The first driving magnet includes: a first magnet portion and a second magnet portion, each having an N pole and a S pole; a neutral portion or gap disposed between the first magnet portion and the second magnet portion, wherein the first coil includes: a first portion facing the first magnet portion; and a second portion facing the second magnet portion, wherein the first portion of the first coil does not overlap with the second magnet portion in a first direction, and the second portion of the first coil may not overlap with the first magnet portion in the first direction.

[0041] The fixing part includes a first magnetic yoke, which is made of magnetic material. A first driving magnet is arranged such that attraction acts on the first magnetic yoke. The width of the first magnetic yoke in a second direction perpendicular to the optical axis and the first direction can be formed to be greater than the width of the first surface of the first driving magnet facing the first surface of the first magnetic yoke.

[0042] The lens driving device includes a second magnetic yoke disposed between the first driving magnet and the first moving part, wherein the second magnetic yoke may surround at least three surfaces of the first driving magnet.

[0043] When current is applied to the first coil, the first moving part moves to perform the zoom function, and when current is applied to the second coil, the second moving part can move to perform the autofocus function.

[0044] The camera device according to this embodiment may include: a printed circuit board; an image sensor disposed on the printed circuit board; a reflective member driving device; and a lens driving device disposed between the image sensor and the reflective member driving device.

[0045] The camera device may include: a driver IC disposed on a printed circuit board and electrically connected to a first coil and a second coil; a substrate electrically connecting the printed circuit board and the reflective member driving device; and a temperature sensor disposed on the substrate.

[0046] The temperature sensor can be arranged adjacent to either the first or the second coil.

[0047] The optical device according to this embodiment may include: a main body; a camera device disposed on the main body; and a display disposed in the main body and outputting at least one of video and images captured by the camera device.

[0048] The lens driving device according to this embodiment includes: a fixed part including a first lens; a first moving part disposed in the fixed part and including a second lens; a second moving part disposed in the fixed part and including a third lens; a first driving magnet disposed on the first moving part; a second driving magnet disposed on the second moving part; a first coil disposed at a position corresponding to the first driving magnet; and a second coil disposed at a position corresponding to the second driving magnet, wherein the first driving magnet may be disposed closer to the first lens than the second driving magnet, and wherein a portion of the first driving magnet may overlap with the second driving magnet in a first direction perpendicular to the optical axis direction.

[0049] The first driving magnet may include a portion that does not overlap with the second driving magnet in the first direction.

[0050] The first coil can be arranged closer to the first lens than the second coil.

[0051] The first driving magnet can be formed to have the same dimensions as the second driving magnet.

[0052] The lens driving device according to this embodiment includes: a housing; a first retainer and a second retainer disposed within the housing; a first lens disposed within the housing; a second lens disposed on the first retainer; a third lens disposed on the second retainer; a first driving magnet disposed on the first retainer; a second driving magnet disposed on the second retainer; a first coil disposed at a position corresponding to the first driving magnet; and a second coil disposed at a position corresponding to the second driving magnet, wherein the first coil is disposed closer to the first lens than the second coil, and wherein a portion of the first coil may overlap with the second coil in a first direction perpendicular to the optical axis, and another portion of the first coil may not overlap with the second coil in the first direction.

[0053] The lens driving device according to this embodiment includes: a fixed part; a movable part disposed within the fixed part; a driving magnet disposed within the movable part; a substrate disposed within the fixed part; a coil disposed on the substrate and at a position corresponding to the driving magnet; and an EEPROM disposed on the substrate, wherein the EEPROM can be electrically connected to the coil.

[0054] The moving part includes a first moving part and a second moving part, wherein the driving magnet includes a first driving magnet disposed in the first moving part and a second driving magnet disposed in the second moving part, wherein the substrate includes a first substrate and a second substrate, the first substrate and the second substrate being disposed on opposite sides and spaced apart from each other relative to the moving part, and wherein the coil may include: a first coil disposed on the first substrate and at a position corresponding to the first driving magnet; and a second coil disposed on the second substrate and at a position corresponding to the second driving magnet.

[0055] The second coil and EEPROM can be arranged on the inner surface of the second substrate.

[0056] The fixing part may include a housing with a groove, and the EEPROM may be arranged in the groove of the housing.

[0057] The movable part includes a retainer and a lens disposed on the retainer, wherein the retainer includes two protrusions spaced apart from each other in the optical axis direction, and wherein the upper surface of each of the two protrusions may include a flat surface and an inclined surface inclined from the flat surface.

[0058] The fixed part includes a housing and a first lens disposed in the housing; the first moving part includes a first retaining member and a second lens disposed on the first retaining member; the second moving part includes a second retaining member and a third lens disposed on the second retaining member; and the first moving part and the second moving part are movable respectively.

[0059] Each of the first through third lenses may include multiple lenses.

[0060] The second and third lenses can be formed from D-cut lenses.

[0061] The lens driving device includes a Hall sensor disposed on a substrate and in a cavity of a coil, wherein an EEPROM may be disposed outside the coil.

[0062] The camera device according to this embodiment includes: a printed circuit board; an image sensor disposed on the printed circuit board; and a lens driving device, wherein the substrate can be formed separately from the printed circuit board and can be electrically connected to each other through conductive members.

[0063] The camera device may include a driver IC electrically connected to a coil, and the driver IC may be arranged on a printed circuit board.

[0064] The substrate includes: a plurality of terminals connected to a printed circuit board via conductive members; a first region in which the plurality of terminals are arranged; and a second region in which the coil is arranged, wherein the plurality of terminals can be connected to the printed circuit board when the first region is bent inward relative to the second region.

[0065] The fixing part may include a housing with an inclined surface, wherein the first region may extend obliquely relative to the second region along the inclined surface of the housing.

[0066] The camera device includes: a sensor base disposed on a printed circuit board; and a filter disposed on the sensor base, wherein the filter is disposed on the opposite side of the image sensor relative to the sensor base, and a portion of the filter can protrude from the sensor base.

[0067] The optical device according to this embodiment may include: a main body; a camera device disposed on the main body; and a display disposed on the main body and outputting at least one of video and images captured by the camera device.

[0068] The lens driving device according to this embodiment may include: a housing; a first retainer and a second retainer disposed within the housing; a first driving magnet disposed on the first retainer; a second driving magnet disposed on the second retainer; a first substrate and a second substrate disposed within the housing, the first substrate and the second substrate being disposed on opposite sides of the first retainer and spaced apart from each other; a first coil disposed on the first substrate; a second coil disposed on the second substrate; and an EEPROM disposed on at least one of the first substrate and the second substrate and electrically connected to the first coil and the second coil.

[0069] This EEPROM can control the first coil and the second coil separately.

[0070] The second coil and the EEPROM can be arranged on the inner surface of the second substrate, and the EEPROM can be arranged on the outer side of the second coil.

[0071] Each of the first retainer and the second retainer includes two protrusions spaced apart from each other in the optical axis direction, wherein the upper surface of each of the two protrusions may include a flat surface and an inclined surface inclined from the flat surface.

[0072] The camera device according to this embodiment may include: a printed circuit board; an image sensor disposed on the printed circuit board; a housing; a first holder and a second holder disposed within the housing; a first driving magnet disposed on the first holder; a second driving magnet disposed on the second holder; a substrate electrically connected to the printed circuit board and disposed within the housing; a first coil and a second coil disposed on the substrate; an EEPROM disposed on the substrate and electrically connected to the first coil and the second coil; and a driver IC disposed on the printed circuit board and electrically connected to the first coil and the second coil.

[0073] To solve the above-mentioned technical problems, a lens driving device according to an embodiment of the present invention includes: a lens barrel; and a magnet arranged in the lens barrel and including a first magnetic pole, a gap, and a second magnetic pole, wherein the length of the gap of the magnet is set according to the length of the moving stroke of the magnet.

[0074] Furthermore, the length of the gap can be set to 1 / 2 of the length of the movement stroke in the direction of the magnet's movement.

[0075] Furthermore, the length of this gap can be set within a tolerance range of 1 / 2 of the length of the travel distance in the direction of magnet movement.

[0076] Furthermore, the tolerance range can be 10%.

[0077] Furthermore, the length of the gap can be set to 1 / 4 to 3 / 4 of the length of the movement stroke in the direction of the magnet's movement.

[0078] Furthermore, the lens driving device includes a position measuring unit for measuring the position of a magnet, wherein the magnet can function as a driving magnet for driving the lens barrel and a sensing magnet for measuring the position of the lens barrel based on the measurement of the position measuring unit.

[0079] To address the aforementioned technical problems, a camera module according to an embodiment of the present invention includes: a plurality of lens groups, comprising at least one lens group fixed in position and at least one movable lens group; a lens barrel in which the plurality of lens groups are arranged; a magnet arranged in the lens barrel and including a first magnetic pole, a gap, and a second magnetic pole; and a position measuring unit for measuring the position of the magnet, wherein the length of the gap can be set according to the length of the movement stroke of the magnet.

[0080] Furthermore, the length of the gap can be set within a tolerance range of 1 / 2 of the length of the travel distance in the moving direction of the magnet.

[0081] Furthermore, the tolerance range can be 10%.

[0082] Furthermore, the magnification can be continuously adjusted based on the distance between two lens groups in a plurality of lens groups.

[0083] Beneficial effects

[0084] This embodiment can prevent the optical axes of the first to third lens groups from being misaligned due to damage to the connecting protrusions during the assembly process.

[0085] Furthermore, driving performance such as linearity and hysteresis can be enhanced by forming the ball rolling portion of the moving part to be elongated by a predetermined multiple of the ball diameter.

[0086] In addition, it can minimize noise caused by collisions between the first to third lens groups and the lens barrel and prevent damage.

[0087] In this embodiment, the two moving parts used to perform zoom and autofocus functions can be moved independently, and the movement space can be minimized.

[0088] In addition, it can enhance the sensitivity and linearity of the Hall output.

[0089] In addition, compensation based on the degree of fever can be applied.

[0090] This enhances the driving performance of autofocus and zoom functions.

[0091] Because the EEPROM in this embodiment uses calibration data (Cal.Data) performed in a previous process during the manufacturing stage, the time required for software porting can be minimized. This improves the mass production capability of the camera device.

[0092] In this embodiment, the substrate on which the coil is placed and the substrate on which the image sensor is placed are formed as separate substrates, and they can be joined by solder during the assembly process. In this case, according to the structure of this embodiment, since the substrate and the solder used to solder the substrate do not protrude further than the substrate, the size of the camera device can be minimized.

[0093] According to embodiments of the present invention, linearity, hysteresis, and resolution can be improved by using magnets in which gaps are formed. Attached Figure Description

[0094] Figure 1 This is a perspective view of the camera device according to this embodiment.

[0095] Figure 2 This is a bottom perspective view of the camera device according to this embodiment.

[0096] Figure 3 This is a plan view of the camera device according to this embodiment.

[0097] Figure 4 It is along Figure 3 The sectional view taken by line AA.

[0098] Figure 5 It is along Figure 3 The sectional view taken by line BB.

[0099] Figure 6 It is along Figure 3 The sectional view taken by the CC line.

[0100] Figure 7 This is an exploded perspective view of the camera device according to this embodiment.

[0101] Figure 8 This is a perspective view of the camera device in this embodiment, omitting the cover component.

[0102] Figure 9 This is a perspective view of the reflective member driving device according to this embodiment.

[0103] Figure 10 This is an exploded perspective view of the reflective member driving device according to this embodiment.

[0104] Figure 11 This is an exploded perspective view of the bottom of the reflective member driving device according to this embodiment.

[0105] Figure 12 and Figure 13 This is a diagram used to explain the structure related to the moving plate of the reflective member driving device according to this embodiment.

[0106] Figure 14 This is a perspective view showing the state in which the structure of the moving part of the reflective member driving device according to this embodiment is omitted.

[0107] Figure 15 This is in a state where components such as the substrate are omitted. Figure 14 A perspective view of the reflective component drive device.

[0108] Figure 16 This is a perspective view illustrating the fixing part and related structure of the reflective member driving device according to this embodiment.

[0109] Figure 17 This is a perspective view illustrating the state in which the moving part is arranged within the fixed part of the reflective member drive device according to this embodiment.

[0110] Figure 18 This is an exploded perspective view illustrating the relevant shapes of the rigid mover and the fixing part of the reflective member driving device according to this embodiment.

[0111] Figure 19 This is a perspective view illustrating the arrangement of the second magnet in the fixing part of the reflective member driving device according to this embodiment.

[0112] Figure 20 This is a perspective view illustrating the connection state between the retainer and the rigid mover of the reflective member drive device according to this embodiment.

[0113] Figure 21 This is a front view of the retainer of the reflective member driving device according to this embodiment.

[0114] Figure 22 This is a perspective view illustrating the rigid mover, the first magnet, and the second magnet of the reflective member driving device according to this embodiment.

[0115] Figure 23 This is a perspective view illustrating the first magnet, the second magnet, and the driving unit of the reflective member driving device according to this embodiment.

[0116] Figure 24 This is a perspective view illustrating the first magnet, the second magnet, and the driving magnet of the reflective member driving device according to this embodiment.

[0117] Figure 25 This is a side view of the first magnet, the second magnet, and the driving magnet of the reflective member driving device according to this embodiment.

[0118] Figure 26 This is a cross-sectional view of the reflective member driving device according to this embodiment.

[0119] Figure 27 This is a cross-sectional perspective view of the reflective member drive device according to a variant example.

[0120] Figure 28 (a) is a perspective view illustrating the first magnet and the second magnet of the reflective member driving device according to this embodiment, and (b) is a rear view.

[0121] Figure 29 This is a perspective view illustrating the state in which the movable plate is arranged in the movable part of the reflective member driving device according to this embodiment.

[0122] Figure 30 and Figure 31 This is a diagram used to explain the tilt around the x-axis of the reflective member drive device according to this embodiment.

[0123] Figures 32 to 34 This is a view used to explain the tilt around the y-axis of the reflective member drive device according to this embodiment.

[0124] Figure 35This is a perspective view of the lens driving device according to this embodiment.

[0125] Figure 36 This is a perspective view of the lens driving device according to this embodiment, in which some structures are omitted.

[0126] Figure 37 yes Figure 36 A perspective view of the lens drive device in the state shown, viewed from another direction.

[0127] Figure 38 This is a perspective view of the lens driving device according to this embodiment, in which some structures are omitted.

[0128] Figure 39 This is a perspective view of the lens driving device according to this embodiment, omitting structures such as the substrate and coil.

[0129] Figure 40 Is Figure 39 The perspective view of the lens drive device shown omits the state of the first lens and related components.

[0130] Figure 41 These are perspective views and partial enlarged views of a portion of the lens driving device according to this embodiment.

[0131] Figure 42 This is a diagram used to explain the arrangement of the coils and sensors of the lens driving device according to this embodiment.

[0132] Figure 43 It is illustrated in Figure 39 The perspective view of the lens drive device shown omits the state of the second housing.

[0133] Figure 44 From Figure 43 The perspective view of the lens drive device shown omits the state of the guide rail.

[0134] Figure 45 This is an enlarged view of some structures of the lens driving device according to this embodiment.

[0135] Figure 46 This is a perspective view of the first moving part and the second moving part of the lens driving device according to this embodiment and their related structures.

[0136] Figure 47 This is a perspective view of the second moving part and its related structure of the lens driving device according to this embodiment.

[0137] Figure 48 This is an exploded perspective view of the lens driving device according to this embodiment.

[0138] Figure 49 This is a perspective view of the second housing of the lens driving device according to this embodiment.

[0139] Figure 50 and Figure 51 This is an exploded perspective view of some structures of the lens driving device according to this embodiment.

[0140] Figure 52 This is a cross-sectional view of the lens driving device according to this embodiment.

[0141] Figure 53 This is a cross-sectional view of a portion of the lens driving device according to this embodiment.

[0142] Figure 54 This is a diagram illustrating the arrangement of the EEPROM in the lens driving device according to this embodiment.

[0143] Figure 55 This is a view illustrating the double-stage protrusion and associated connection structure of the housing of the lens driving device according to this embodiment.

[0144] Figure 56 This is a diagram illustrating the cover of the lens driving device according to this embodiment.

[0145] Figure 57 This is a side view of the moving part and the driving magnet of the lens driving device according to this embodiment.

[0146] Figure 58 This is a cross-sectional view illustrating the cover and related structure of the lens driving device according to this embodiment.

[0147] Figure 59 This is a cross-sectional view illustrating the first moving part and related structure of the lens driving device according to this embodiment.

[0148] Figure 60 This is a cross-sectional view illustrating the second moving part and related structure of the lens driving device according to this embodiment.

[0149] Figure 61 This is an exploded perspective view of the lens driving device according to this embodiment.

[0150] Figure 62 This is a cross-sectional view illustrating the height difference between the first coil and the second coil of the lens driving device according to this embodiment.

[0151] Figure 63 This is a cross-sectional perspective view of the first moving part and the first driving part of the lens driving device according to this embodiment.

[0152] Figure 64This is a cross-sectional view of the first moving part and the first driving part of the lens driving device according to this embodiment.

[0153] Figure 65 This is a cross-sectional view of the lens driving device according to this embodiment.

[0154] Figures 66 to 68 This diagram is used to explain the implementation of the zoom function and autofocus function of the lens driving device according to this embodiment.

[0155] Figure 69 This is a perspective view of a portion of the camera device according to this embodiment.

[0156] Figure 70 This is an exploded perspective view of the image sensor, filter, and related structures of the camera device according to this embodiment.

[0157] Figure 71 This is a perspective view of the front side of the optical device according to this embodiment.

[0158] Figure 72 This is a perspective view of the rear surface of the optical device according to this embodiment.

[0159] Figure 73 This is a block diagram of a lens driving device according to an embodiment of the present invention.

[0160] Figure 74 The illustration shows a magnet according to an embodiment of the present invention.

[0161] Figure 75 and 76 This is a diagram used to explain the magnet according to an embodiment of the present invention.

[0162] Figure 77 This is a block diagram of a camera module according to an embodiment of the present invention.

[0163] Figure 78 This is a block diagram of a camera module according to another embodiment of the present invention.

[0164] Figure 79 An example of an implementation of a camera module according to an embodiment of the present invention is illustrated. Detailed Implementation

[0165] Preferred embodiments of the invention will be described in detail below with reference to the accompanying drawings.

[0166] However, the technical concept of the present invention is not limited to the embodiments to be described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more constituent elements can be selectively combined or substituted among embodiments.

[0167] Furthermore, the terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly defined and described, may be interpreted as meanings that are generally understood by those skilled in the art, and common terms such as those defined in dictionaries may be interpreted in light of the context of the relevant art.

[0168] Furthermore, the terminology used in this specification is for describing embodiments and is not intended to limit the invention.

[0169] In this specification, unless otherwise specified in the phrase, the singular form may include the plural form, and when described as “at least one (or more than one) of A, B and C”, it may include one or more of all combinations that can be combined with A, B and C.

[0170] Furthermore, when describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended only to distinguish the components from other components, and they do not limit the nature, order, or sequence of the components.

[0171] Furthermore, when a component is described as being “connected,” “linked,” or “interconnected” to another component, the component is not only directly connected, linked, or interconnected to the other component, but may also include cases where the component is “connected,” “linked,” or “interconnected” due to another component between other components.

[0172] Furthermore, when described as being "above" or "below" each component, "above" or "below" means not only that the two components are in direct contact, but also that one or more other components are formed or arranged between the two components. Additionally, when expressed as "above" or "below," it can include not only an upward meaning based on a component, but also a downward meaning based on that component.

[0173] In the following description, the reflective member driving device according to this embodiment will be described with reference to the accompanying drawings.

[0174] Figure 9 This is a perspective view of the reflective member driving device according to this embodiment; Figure 10 This is an exploded perspective view of the reflective member driving device according to this embodiment; Figure 11 This is an exploded perspective view of the bottom of the reflective member driving device according to this embodiment; Figure 12 and Figure 13 This is a diagram used to explain the structure related to the moving plate of the reflective member driving device according to this embodiment; Figure 14This is a perspective view showing the structure of the moving part of the reflective member driving device according to this embodiment omitted; Figure 15 This is in a state where components such as the substrate are omitted. Figure 14 A perspective view of the reflective component drive device; Figure 16 This is a perspective view illustrating the fixing part and related structure of the reflective member driving device according to this embodiment; Figure 17 This is a perspective view illustrating the state in which the moving part is arranged within the fixed part of the reflective member drive device according to this embodiment; Figure 18 This is an exploded perspective view illustrating the relevant shapes of the rigid mover and the fixing part of the reflective member driving device according to this embodiment; Figure 19 This is a perspective view illustrating the arrangement of the second magnet in the fixing portion of the reflective member driving device according to this embodiment; Figure 20 This is a perspective view illustrating the connection state between the retainer and the rigid mover of the reflective member drive device according to this embodiment; Figure 21 This is a front view of the retainer of the reflective member driving device according to this embodiment; Figure 22 This is a perspective view illustrating the rigid mover, the first magnet, and the second magnet of the reflective member driving device according to this embodiment; Figure 23 This is a perspective view illustrating the first magnet, the second magnet, and the driving unit of the reflective member driving device according to this embodiment; Figure 24 This is a perspective view of the first magnet, the second magnet, and the driving magnet of the reflective member driving device according to this embodiment; Figure 25 The illustration shows a side view of the first magnet, the second magnet, and the driving magnet of the reflective member driving device according to this embodiment; Figure 26 This is a cross-sectional view of the reflective component driving device according to this embodiment; Figure 27 This is a perspective view of the reflective component driving device based on a variant example; Figure 28 (a) is a perspective view illustrating the first magnet and the second magnet of the reflective member driving device according to this embodiment, and (b) is a rear view; and Figure 29 This is a perspective view illustrating the state in which the movable plate is arranged in the movable part of the reflective member driving device according to this embodiment.

[0175] The reflector drive device 1000 can perform optical image stabilization (OIS). The reflector drive device 1000 can perform hand shaking correction. The reflector drive device 1000 can move the reflector 1220. The reflector drive device 1000 can tilt the reflector 1220. The reflector drive device 1000 can tilt the reflector 1220 about two axes. The reflector drive device 1000 can tilt the reflector 1220 about the x-axis and y-axis. The x-axis and y-axis can be perpendicular to each other.

[0176] The reflector drive device 1000 can be a reflector actuator. The reflector drive device 1000 can be an OIS actuator. The reflector drive device 1000 can be an OIS drive device. The reflector drive device 1000 can be a prism drive device. The reflector drive device 1000 can be an actuator. The reflector drive device 1000 can be an actuator device. The reflector drive device 1000 can be an actuator drive device. The reflector drive device 1000 can be a tilting device.

[0177] The reflective member driving device 1000 may include a fixing part 1100. The fixing part 1100 may be a part that is relatively fixed when the moving part 1200 moves. The fixing part 1100 may accommodate at least a portion of the moving part 1200. The fixing part 1100 may be arranged on the outside of the moving part 1200.

[0178] The reflective member driving device 1000 may include a housing 1110. The fixing part 110 may include the housing 1110. The housing 1110 may be disposed outside the retainer 1210. The housing 1110 may accommodate at least a portion of the retainer 1210. The housing 1110 may include openings or holes in the upper plate and either side plate for ensuring a light path. The housing 1110 may include an upper plate, a lower plate, and multiple side plates.

[0179] The housing 1110 may include a first portion 1111. The first portion 1111 may be formed on a side plate of the housing 1110. A movable plate 1300 may be disposed on the first portion 1111. The first portion 1111 may be disposed between the retainer 1210 and the rigid mover 1230. The first portion 1111 may be disposed between the rigid mover 1230 and the movable plate 1300. A second magnet 1120 may be disposed on the first portion 1111. The movable 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 (opposite side). A portion of the housing 1110 may be disposed between the movable plate 1300 and the rigid mover 1230.

[0180] The housing 1110 may include a second portion 1112. The second portion 1112 may be disposed on the retainer 1210. When the retainer 1210 moves upward, the second portion 1112 may contact the retainer 1210. The second portion 1112 may overlap with the retainer 1210 in the direction of movement. The second portion 1112 may be the upper plate of the housing 1110.

[0181] The housing 1110 may include a third portion 1113. The third portion 1113 may be disposed below the retainer 1210. When the retainer 1210 moves downward, the third portion 1113 may contact the retainer 1210. The third portion 1113 may overlap with the retainer 1210 in the direction of movement. The third portion 1113 may be the lower plate of the housing 1110.

[0182] The housing 1110 may include a hole 1114. The hole 1114 may be a through-hole for a rigid mover. The hole 1114 may be formed in a side plate of the housing 1110. The hole 1114 may also be formed in a first portion 1111 of the housing 1110. A rigid mover 1230 may be disposed in the hole 1114. The rigid mover 1230 may be arranged to pass through the hole 1114. The hole 1114 may be formed larger than the movement space of the rigid mover 1230 to avoid interfering with the rigid mover 1230. The housing 1110 may include two holes 1114 into which the rigid mover 1230 is inserted.

[0183] The housing 1110 may include a recess 1115. The recess 1115 may be a receiving recess for a first protrusion of the movable plate 1300. The first protrusion 1310 of the movable plate 1300 may be disposed in the recess 1115. The recess 1115 may accommodate at least a portion of the movable plate 1300. The recess 1115 may prevent movement other than rotation of the first protrusion 1310 of the movable plate 1300. The recess 1115 may include an inclined surface that contacts the first protrusion 1310 of the movable plate 1300. The inclined surface may include a plurality of inclined surfaces.

[0184] The housing 1110 may include a plurality of grooves 1115, in which a plurality of first protrusions 1310 are arranged. The plurality of grooves 1115 of the housing 1110 may include: a first groove 1115-1, which contacts one of the plurality of first protrusions 1310 at four points; and a second groove 1115-2, which contacts another of the plurality of first protrusions 1310 at two points.

[0185] 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 movable plate 1300 at four points. Thus, except for the rotation of one of the first protrusions 1310 of the movable plate 1300, the first groove 1115-1 of the housing 1110 may prevent movement in four directions: up, down, left, and right.

[0186] 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 other of the two first protrusions 1310 of the movable plate 1300 at two points. Thus, the second groove 1115-2 of the housing 1110 may prevent the other of the first protrusions 1310 of the movable plate 1300 from moving in both directions. For example, the second groove 1115-2 of the housing 1110 may prevent the first protrusion 1310 of the movable plate 1300 from moving up and down, but may not prevent left and right movement.

[0187] The housing 1110 may include a protrusion 1116. The protrusion 1116 can be coupled to the lens drive device 2000. The protrusion 1116 may be formed on a side plate of the housing 1110. The protrusion 1116 may be formed on the side of the housing 1100 facing the lens drive device 2000. The protrusion 1116 may have a trapezoidal cross-section. The protrusion 1116 can be coupled to the housing 2110 of the lens drive device 2000. The protrusion 1116 can be inserted into a first recess 2111 of the housing 2110 of the lens drive device 2000. The protrusion 1116 can be coupled to the housing 2110 of the lens drive device 2000 by an adhesive.

[0188] The housing 1110 may include a protrusion 1117. The protrusion 1117 can be coupled to the lens drive device 2000. The protrusion 1117 may be formed on a side plate of the housing 1110. The protrusion 1117 may be formed on the side of the housing 1110 facing the lens drive device 2000. The protrusion 1117 may include a circular cross-section. The protrusion 1117 can be coupled to the housing 2110 of the lens drive device 2000. The protrusion 1117 can be inserted into a second recess 2112 in the housing 2110 of the lens drive device 2000. The protrusion 1117 can be coupled to the housing 2110 of the lens drive device 2000 by an adhesive.

[0189] The housing 1110 may include a protrusion 1118. The protrusion 1118 may be a protrusion that contacts a rigid mover. The protrusion 1118 may be formed on a second surface of the housing 1110. The protrusion 1118 may contact the rigid mover 1230. The protrusion 1118 may be formed on the inner peripheral surface of a hole 1114 through which the rigid mover 1230 passes in the housing 1110. The protrusion 1118 may be configured to contact one or more of the lower and upper surfaces of the rigid mover 1230 when the rigid mover 1230 moves. The protrusion 1118 is capable of preventing the rigid mover 1230 from excessive separation and removal from its original position.

[0190] 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 the second recess arranged below in the recess 1119 of the housing 1110. When the body portion of the rigid mover 1230 moves downward, the body portion of the rigid mover 1230 may contact the two protrusions 1118 of the housing 1110.

[0191] The housing 1110 may include a recess 1119. At least a portion of the protrusion 1231 may be disposed in the recess 1119. A portion of the protrusion 1231 may be disposed in the recess 1119. The recess 1119 may be open toward the outside of the housing 1110. The recess 1119 may be larger than the protrusion 1231 of the rigid mover 1230. The recess 1119 may be spaced apart from the protrusion 1231 of the rigid mover 1230. In the initial state where no power is applied to the drive unit 1400, the recess 1119 may be spaced apart from the protrusion 1231 of the rigid mover 1230. Even when power is applied to the drive unit 1400 to be driven, the recess 1119 may still be spaced apart from the protrusion 1231 of the rigid mover 1230. The recess 1119 of the housing 1110 and the protrusion 1231 of the rigid mover 1230 may come into contact with each other due to external impact. In other words, the groove 1119 of the housing 1110 and the protrusion 1231 of the rigid mover 1230 do not contact each other within the normal driving range of the rigid mover 1230, and they can contact each other when they are outside the normal driving range due to an impact. The groove 1119 of the housing 1110 and the protrusion 1231 of the rigid mover 1230 can function as a stop during an impact.

[0192] 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-step groove. The groove 1119 may have a double-groove shape. The damper 1500 may be arranged in the second groove portion. The contact area between the damper 1500 and the housing 1110 may be increased by the second groove portion. The second groove portion may prevent the damper 1500 from flowing.

[0193] The groove 1119 may include multiple grooves. The groove 1119 may include a first groove in which at least a portion of the first protruding region of the rigid mover 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 opposite to the upper surface of the body of the rigid mover 1230. The housing 1110 may include a second surface facing the lower surface of the body of the rigid mover 1230. The housing 1110 may include a first groove formed on the first surface of the housing 1110 and a second groove formed on the second surface of the housing 1110.

[0194] The reflective member driving device 1000 may include a second magnet 1120. The fixing part 1100 may include the second magnet 1120. The second magnet 1120 may be disposed in the fixing 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 on the first portion 1111 of the housing 1110. The second magnet 1120 may be disposed on the opposite side of the moving plate 1300 relative to the first portion 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 facing 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 to generate a repulsive force with the first magnet 1240. The second magnet 1120 can be arranged to face the first magnet 1240 with the same polarity as the first magnet 1240. The second magnet 1120 can push the first magnet 1240 out.

[0195] At least a portion of the second magnet 1120 may be arranged between the first magnet 1240 and the movable plate 1300. The center of the second magnet 1120 may be arranged at the same height as the center of the first magnet 1240.

[0196] In this embodiment, the drive unit 1400 can tilt the moving part 1200 relative to the mutually perpendicular x-axis and y-axis of the moving plate 1300. At this time, in the y-axis direction, the horizontal axis passing through the center of the second magnet 1120 can be arranged eccentrically relative to the x-axis of the moving plate 1300. This horizontal axis can be parallel to the x-axis.

[0197] In the direction passing through the x-axis, the center of the second magnet 1120 may not be eccentric relative to the y-axis. When viewed from the movable plate 1300 toward the first magnet 1240, the center of the second magnet 1120 may be arranged to coincide with the y-axis. The center of the second magnet 1120 may be arranged at the same height as the center of the first magnet 1240. The center of gravity of the second magnet 1120 may be arranged at the same height as the center of gravity of the first magnet 1240.

[0198] The second magnet 1120 may include a second surface arranged opposite to the first surface of the second magnet 1120. The first magnet 1240 may include a first surface facing the second surface of the second magnet 1120. The first surface of the second magnet 1240 may have the same polarity as the second surface of the second magnet 1120.

[0199] In the direction facing the first surface of the first driving magnet 1411, the second magnet 1120 may be arranged such that it does not overlap with the first driving magnet 1411. In the direction facing the first surface of the second magnet 1120, the second magnet 1120 may be arranged such that it does not overlap with the first driving magnet 1411.

[0200] The reflective member driving device 1000 may include a substrate 1130. The fixing part 1100 may include a substrate 1130. The substrate 1130 may be a flexible printed circuit board (FPCB). The substrate 1130 may be disposed in the housing 1110.

[0201] The reflector drive device 1000 may include a suspension (SUS) 1140. The fixing part 1100 may include the SUS 1140. The suspension 1140 may be disposed on the substrate 1130. The suspension 1140 may be disposed on the outer surface of the substrate 1130. The suspension 1140 may enhance the strength of the substrate 1130.

[0202] The reflector drive device 1000 may include a gyroscope sensor 1150. The fixing part 1100 may include a gyroscope sensor 1150. The gyroscope sensor 1150 can detect the shaking of the camera device 10. The shaking detected by the gyroscope sensor 1150 can be eliminated by a hand shake correction function. The gyroscope sensor 1150 may be disposed on the substrate 1130. The gyroscope sensor 1150 may be disposed on the outer surface of the substrate 1130.

[0203] The reflector drive device 1000 may include a plate 1160. The fixing portion 1100 may include the plate 1160. The plate 1160 may be coupled to the housing 1110. The plate 1160 may cover the rigid mover 1230. The plate 1160 may be arranged to cover an open portion of the housing 1110. The plate 1160 may be arranged to close the front of the open portion of the housing 1110. The plate 1160 may be formed of a metal plate. The housing 1110 may include a recess in which an adhesive for securing the plate 1160 to the housing 1110 is disposed.

[0204] The reflector drive device 1000 may include a driver IC 1170. The fixing portion 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 a first coil 1412 and a 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 current applied to each of the first coil 1412 and the second coil 1422. The driver IC 1170 may be electrically connected to Hall sensors 1413 and 1423. The driver IC 1170 may provide feedback control of the voltage and current applied to the first coil 1412 and the second coil 1422 based on the position of the reflector 1220 detected by the Hall sensors 1413 and 1423.

[0205] The reflective member driving device 1000 may include a moving part 1200. The moving part 1200 may be a movable part, a removable part, or a mover. The moving part 1200 may move 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 arranged within the fixed part 1100. At least a portion of the moving part 1200 may be spaced apart from the fixed part 1100.

[0206] In this embodiment, in the initial state where no current is applied to the drive unit 1400, the moving part 1200 can contact the fixed part 1100.

[0207] The reflective member drive device 1000 may include a retainer 1210. The moving part 1200 may include the retainer 1210. The retainer 1210 may be disposed within the housing 1110. The retainer 1210 is movable relative to the housing 1110. The retainer 1210 may be tilted relative to the housing 1110. At least a portion of the retainer 1210 may be spaced apart from the housing 1110. The retainer 1210 may contact the housing 1110.

[0208] In this embodiment, the retainer 1210 can be moved between the second portion 1112 and the third portion 1113 of the housing 1110 via the first drive unit 1410. In the initial state, when no current is applied to the first drive unit 1410, the retainer 1210 can be in contact with the housing 1110. In the initial state, the retainer 1210 can be in contact with the inner surface of the housing 1110 adjacent to the incident surface of the reflective member 1220. When current is applied to the drive unit 1400, the retainer 1210 can be spaced apart from the inner surface of the housing 1110 and can be tilted relative to the first axis of the moving plate 1300.

[0209] The retainer 1210 may include a recess 1211. The recess 1211 may be a receiving recess for a second protrusion of the movable plate 1300. The second protrusion 1320 of the movable plate 1300 may be disposed in the recess 1211. The recess 1211 may receive at least a portion of the movable plate 1300. The recess 1211 may prevent movement other than rotation of the second protrusion 1320 of the movable plate 1300. The recess 1211 may include an inclined surface that contacts the second protrusion 1320 of the movable plate 1300. The inclined surface may include a plurality of inclined surfaces.

[0210] The retainer 1210 may include a plurality of grooves 1211, in which a plurality of second protrusions 1320 are arranged. The plurality of grooves 1211 of the retainer 1210 include a first groove 1211-1 that contacts one of the second protrusions 1320 at four points, and a second groove 1211-2 that contacts another of the second protrusions 1320 at two points.

[0211] 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. Thus, except for rotation of one of the second protrusions 1320 of the moving plate 1300, the first groove 1211-1 of the retainer 1210 may prevent movement in four directions: upward, downward, leftward, and rightward.

[0212] 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 contact another second protrusion of the two second protrusions 1320 of the movable plate 1300 at two points. Thus, the second groove 1211-2 of the retainer 1210 may prevent the other second protrusion of the second protrusion 1320 of the movable plate 1300 from moving in both directions. For example, the second groove 1211-2 of the retainer 1210 may prevent the second protrusion 1320 of the movable plate 1300 from moving in the left-right direction, but may not prevent movement in the up-down direction.

[0213] The retainer 1210 may include a first protrusion 1212. The first protrusion 1212 may be an upper stop. The first protrusion 1212 may be formed on the upper surface of the retainer 1210. The first protrusion 1212 may protrude from the upper surface of the retainer 1210. When the retainer 1210 moves upward, the first protrusion 1212 may contact the housing 1110. When the retainer 1210 moves upward, the first protrusion 1212 may contact a second portion 1112 of the housing 1110.

[0214] The retainer 1210 may include a second protrusion 1213. The second protrusion 1213 may be a lower stop. The second protrusion 1213 may be formed on the lower surface of the retainer 1210. The second protrusion 1213 may protrude from the lower surface of the retainer 1210. When the retainer 1210 moves downward, the second protrusion 1213 may contact the housing 1110. When the retainer 1210 moves downward, the second protrusion 1213 may contact the third portion 1113 of the housing 1110.

[0215] In this embodiment, in the initial state, the first protrusion 1212 of the retainer 1210 can contact the second portion 1112 of the housing 1110. By applying current to the first drive unit 1410 or due to an impact, the second protrusion 1213 of the retainer 1210 can contact the third portion 1113 of the housing 1110.

[0216] The retainer 1210 may include an adhesive receiving groove 1214. The adhesive receiving groove 1214 may contain adhesive for securing the reflective member 1220 to the retainer 1210. The adhesive receiving groove 1214 may be formed on a surface in contact with the reflective member 1220. Adhesive may be disposed in the adhesive receiving groove 1214.

[0217] The retainer 1210 may include a groove 1215. The groove 1215 may be an isolation groove that provides an isolation space between the groove 1215 and the reflective member 1220. The groove 1215 may be formed on the surface that contacts the reflective member 1220. The contact area between the reflective member 1220 and the retainer 1210 may be reduced by the groove 1215.

[0218] The retainer 1210 may include a groove 1216. The groove 1216 may be a weight-reducing groove. The groove 1216 may be formed in the central portion of the retainer 1210. The weight of the retainer 1210 can be reduced by the groove 1216.

[0219] The retainer 1210 may include a magnet receiving groove 1217. Drive magnets 1411 and 1421 may be arranged in the magnet receiving groove 1217. The magnet receiving groove 1217 may be formed in a shape corresponding to the drive magnets 1411 and 1421. The magnet receiving groove 1217 may be recessedly formed on the lower surface of the retainer 1210. The magnet receiving groove 1217 may be formed on the lower surface and two side surfaces of the retainer 1210. The magnet receiving groove 1217 may include a plurality of magnet receiving grooves. The magnet receiving groove 1217 may include a first magnet receiving groove for receiving a first drive magnet 1411 and a yoke 1414. The magnet receiving groove 1217 may include a second magnet receiving groove for receiving a second drive magnet 1421 and a yoke 1424.

[0220] The retainer 1210 may include a groove 1218. The groove 1218 may be a rigid mover receiving groove. The connecting portion 1232 of the rigid mover 1230 may be disposed in the groove 1218. The groove 1218 may be formed in a shape corresponding to the connecting portion 1232 of the rigid mover 1230. The groove 1218 may include a recess for receiving adhesive for securing the connecting portion 1232 of the rigid mover 1230 to the retainer 1210. The retainer 1210 may include a plurality of protrusions formed within the groove 1218. At least a portion of the connecting portion 1232 of the rigid mover 1230 may be inserted into the groove 1218. The reflective member drive device 1000 may include adhesive for securing the rigid mover 1230 to the retainer 1210. At least a portion of the adhesive may be disposed between the plurality of protrusions formed within the groove 1218 of the retainer 1210. This enhances the connection force between the rigid mover 1230 and the retainer 1210.

[0221] The retainer 1210 may include a side stop 1219. The side stop 1219 may be formed on both sides of the retainer 1210. The side stop 1219 may protrude from the side surface of the retainer 1210. When the retainer 1210 moves laterally, the side stop 1219 may contact the housing 1110. When the retainer 1210 moves laterally, the side stop 1219 may contact the side plate of the housing 1110.

[0222] The reflective member driving device 1000 may include a reflective member 1220. The moving part 1200 may include the reflective member 1220. The reflective member 1220 may be disposed on the retainer 1210. The reflective member 1220 may be disposed within the retainer 1210. The reflective member 1220 may be coupled to the retainer 1210. The reflective member 1220 may be fixed to the retainer 1210. The reflective member 1220 may be fixed to the retainer 1210 by adhesive. The reflective member 1220 may move integrally with the retainer 1210. The reflective member 1220 may alter the path of light. The reflective member 1220 may reflect light. The reflective member 1220 may include a prism. The reflective member 1220 may include a mirror. The reflective member 1220 may be formed in a triangular prism shape. The angle between the path of light incident on the reflective member 1220 and the path of light emitted from it may be 90 degrees.

[0223] The reflective member drive device 1000 may include a rigid mover 1230. The moving part 1200 may include the rigid mover 1230. The rigid mover 1230 may be coupled to the retainer 1210. The rigid mover 1230 may be formed as a separate member from the retainer 1210. The rigid mover 1230 may be coupled to the retainer 1210 through a hole 1114 in the housing 1110. The rigid mover 1230 may be formed of a non-magnetic metal. A first magnet 1240 and a second magnet 1120 may be arranged between the rigid mover 1230 and the retainer 1210. The first magnet 1240 and the second magnet 1120 may be arranged to face each other with the same polarity and to repel each other. The first magnet 1240, fixed to the housing 1110, may push the second magnet 1120 outward. The rigid mover 1230, fixed to the second magnet 1120, may also be pushed outward by the repulsive force of the first magnet 1240. The retainer 1210, fixed to the rigid mover 1230, can also be pushed outward. Thus, the retainer 1210 can press the movable plate 1300 against the housing 1110. Therefore, the movable plate 1300 can be arranged between the retainer 1210 and the housing 1110 without detaching or being removed.

[0224] The rigid mover 1230 may include a protrusion 1231. The protrusion 1231 may extend from the body portion of the rigid mover 1230. The protrusion 1231 may be coupled to the housing 1110 via a damper 1500. The protrusion 1231 may be disposed in the central region of the rigid mover 1230. The protrusion 1231 may be formed in the central region of the rigid mover 1230. The protrusion 1231 may protrude from the upper surface of the body portion of the rigid mover 1230. The protrusion 1231 may contact the housing 1110 when the rigid mover 1230 moves.

[0225] The protruding portion 1231 may include multiple protruding portions. The protruding portion 1231 of the rigid mover 1230 may include a first protruding portion formed on the upper surface of the body portion of the rigid mover 1230. The protruding portion 1231 may include a second protruding portion formed on the lower surface of the body portion of the rigid mover 1230. At least a portion of the first protruding portion of the rigid mover 1230 may be disposed in a first recess of the housing 1110. At least a portion of the second protruding portion of the rigid mover 1230 may be disposed in a second recess of the housing 1110. The protruding portion 1231 may include a first protruding region protruding to one side and a second protruding region protruding to the other side. Each of the first and second protruding regions may be referred to as a protruding portion.

[0226] The rigid mover 1230 may include a body portion. This body portion may be arranged on the opposite side of the moving plate 1300 relative to the first portion 1111 of the housing 1110. The rigid mover 1230 may include two connecting portions 1232 projecting from both sides of the body portion. The rigid mover 1230 may include two protruding portions 1231 projecting from the body portion in the upward and downward directions.

[0227] The rigid mover 1230 may include a connecting portion 1232. The connecting portion 1232 may be a leg portion. The connecting portion 1232 may extend from the body portion of the rigid mover 1230. The connecting portion 1232 may pass through a hole 1114 in the housing 1110. The connecting portion 1232 may be coupled to a retainer 1210. The connecting portion 1232 may be secured to the retainer 1210 by adhesive. At least a portion of the connecting portion 1232 may be inserted into a recess 1218 in the retainer 1210.

[0228] The reflective member driving device 1000 may include a first magnet 1240. The moving part 1200 may also include the first magnet 1240. The first magnet 1240 may be disposed in the moving part 1200. The first magnet 1240 may be a first repulsive magnet. The first magnet 1240 may be disposed in a rigid mover 1230. The first magnet 1240 may be disposed in the body portion of the rigid mover 1230. The first magnet 1240 may be arranged to face a second magnet 1120. The first magnet 1240 may be arranged to generate a repulsive force with the second magnet 1120. The first magnet 1240 may be arranged to face the second magnet 1120 with the same polarity as the second magnet 1120. The first magnet 1240 may push the second magnet 1120.

[0229] In this embodiment, the central axis of the first magnet 1240 can be arranged off-center relative to the central axis of the movable plate 1300, relative to the first optical axis. In this case, the first optical axis can be the z-axis. The first optical axis can be an axis perpendicular to the sensor surface of the image sensor 3400. The first optical axis can also be the optical axis of a lens group arranged adjacent to the image sensor 3400.

[0230] like Figure 26 As shown, the horizontal central axis A of the first magnet 1240 and the second magnet 1120 can be placed eccentrically to have a gap G in the longitudinal direction with the horizontal central axis B of the moving plate 1300.

[0231] When viewed from the movable plate 1300 toward the first magnet 1240, the center of the first magnet 1240 can be arranged off-center relative to the center of the movable plate 1300.

[0232] Relative to the opposing surface, the horizontal axis passing through the central axis of the first magnet 1240 can be eccentric in the horizontal direction of the horizontal axis passing through the central axis of the moving plate 1300 and the horizontal direction of the second optical axis perpendicular to the first optical axis. In this case, the horizontal axis can be the x-axis. The horizontal axis can be arranged in the horizontal direction. The second optical axis can be the y-axis. The second optical axis can be an axis parallel to the sensor surface of the image sensor 3400. The second optical axis can be arranged in the vertical direction. Relative to the opposing surface, the horizontal axis intersecting or contacting the central axis of the first magnet 1240 can be eccentric in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the horizontal direction of the second optical axis perpendicular to the first optical axis. The center of the first magnet 1240 can be arranged to be eccentric relative to the center of the moving plate 1300 in the longitudinal direction.

[0233] Relative to the opposing surface, the vertical axis passing through the central axis of the first magnet 1240 can be aligned with both the vertical axis passing through the central axis of the moving plate 1300 and the horizontal axis. In this case, the horizontal axis can be the x-axis. The horizontal axis can be arranged in the horizontal direction. The second optical axis can be the y-axis. The second optical axis can be an axis parallel to the sensor surface of the image sensor 3400. The second optical axis can be arranged in the vertical direction. The center of the first magnet 1240 can be arranged such that it is not eccentric relative to the center of the moving plate 1300 in the horizontal direction.

[0234] Relative to the opposing surface, a horizontal line passing through the center of the first magnet 1240 may be eccentric in the vertical direction relative to a horizontal line passing through the center of the movable plate 1300. Relative to the opposing surface, a vertical line passing through the center of the first magnet 1240 may not be eccentric in the horizontal direction relative to a vertical line passing through the center of the movable plate 1300.

[0235] The horizontal axis of the first magnet 1240 can be arranged to be higher than the horizontal axis of the movable plate 1300. As a variant, the horizontal axis of the first magnet 1240 can be arranged to be lower than the horizontal axis of the movable plate 1300.

[0236] The first magnet 1240 and the second magnet 1120 can be arranged between the rigid mover 1230 and the moving plate 1300.

[0237] The size of the first magnet 1240 may differ from the size of the second magnet 1120. The first magnet 1240 may be formed to a different size than the second magnet 1120. The size of the first magnet 1240 may be larger than the size of the second magnet 1120.

[0238] The area of ​​the first surface of the first magnet 1240 may be greater than the area of ​​the second surface of the second magnet 1120 facing the first surface. The first surface and the second surface are arbitrarily referred to as one of two surfaces, while the other may be called the second surface, and both may be called the first surface. The first magnet 1240 may include the first surface. The second magnet 1120 may include a first surface facing the first surface of the first magnet 1240. The area of ​​the first surface of the first magnet 1240 may be greater than the area of ​​the first surface of the second magnet 1120.

[0239] The first surface of the first magnet 1240 may include a first side. The first surface of the second magnet 1120 may include a first side arranged in a direction corresponding to the first side of the first magnet 1240. The first side of the second magnet 1120 may be 55% to 75% of the first side of the first magnet 1120. The first side of the second magnet 1120 may be 60% to 66% of the first side of the first magnet 1240. The first side of the second magnet 1120 may be 62% to 64% of the first side 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.

[0240] The area of ​​the first surface of the second magnet 1120 may be 30% to 50% of the area of ​​the first surface of the first magnet 1240. The area of ​​the first surface of the second magnet 1120 may be 35% to 45% of the area of ​​the first surface of the first magnet 1240. The area of ​​the first surface of the second magnet 1120 may be 38% to 42% of the area of ​​the first surface of the first magnet 1240.

[0241] The first magnet 1240 and the second magnet 1120 can be formed to have the same thickness. The volume of the second magnet 1120 can be 30% to 50% of the volume of the first magnet 1240.

[0242] When viewed from the second magnet 1120 toward the first magnet 1240, the edge region of the second magnet 1120 may be arranged within a first surface of the first magnet 1240. This edge region may be a corner region. The first magnet 1240 may be arranged such that all regions of the second magnet 1120 overlap with the first magnet 1240 in a first direction facing the second magnet 1120.

[0243] As a variation, 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 to be larger than the first magnet 1240.

[0244] The central axes of the first magnet 1240 and the second magnet 1120 can coincide. However, in actual products, tolerances of ±1% to ±2% may occur.

[0245] In this embodiment, 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 arranged eccentrically relative to 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.

[0246] In this embodiment, in the initial state where no current is applied to the drive unit 1400, the moving part 1200 can contact the fixed part 1100. When viewed from the second magnet 1120 toward the first magnet 1240, the edge of the first magnet 1240 can surround the second magnet 1120. When viewed from the second magnet 1120 toward the first magnet 1240, the second magnet 1120 can be arranged inside the corner of the first magnet 1240.

[0247] 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.

[0248] In this embodiment, the force Fx generated by the first driving unit 1410 can be within 7 millinewtons (mN). Additionally, the force Fy generated by the second driving unit 1420 can be within 7 mN. Alternatively, the force Fx generated by the first driving unit 1410 can be within 3 mN. Additionally, the force Fy generated by the second driving unit 1420 can be within 3 mN.

[0249] The first surface of the first magnet 1240 can be formed in a square shape. The first surface of the second magnet 1120 can be formed in a square shape. Alternatively, each of the first surfaces of the first magnet 1240 and the second magnet 1120 can be formed in a rectangular shape. The first magnet 1240 can have at least partially a square cross-section. The second magnet 1120 can have at least partially a square cross-section. The first magnet 1240 can be formed with rounded edges. The second magnet 1120 can be formed with rounded edges.

[0250] In a variant example, the first magnet 1240 may have a circular cross-section. The first magnet 1240 may be formed into a cylindrical shape. The second magnet 1120 may have a circular cross-section. The second magnet 1120 may be formed into a cylindrical shape. The first magnet 1240 may be formed with rounded edges. The first magnet 1240 may be formed with curved edges. The first magnet 1240 may be formed such that its edges are curved. The first magnet 1240 may be formed with C-cut or R-cut edges. The second magnet 1120 may be formed with rounded edges. The second magnet 1120 may be formed with curved edges. The second magnet 1120 may be formed such that its edges are curved. The second magnet 1120 may be formed with C-cut or R-cut edges.

[0251] The reflective member driving device 1000 may include a movable plate 1300. The movable plate 1300 may be an intermediate plate. The movable plate 1300 may be arranged between the housing 1110 and the retainer 1210. The movable plate 1300 may be arranged between the rigid mover 1230 and the retainer 1210. The movable plate 1300 may be arranged between the first magnet 1240 and the retainer 1210. The movable plate 1300 may be positioned between the fixed portion 1100 and the movable portion 1200. The movable plate 1300 may be arranged between the first surface of the second magnet 1120 and the retainer 1210. The movable plate 1300 may guide the movement of the retainer 1210 against the housing 1110. The movable plate 1300 may provide a tilting center for the retainer 1210. That is, the retainer 1210 may tilt about the movable plate 1300. The movable plate 1300 may have one side disposed on the retainer 1210 and the other side disposed in the housing 1110. The movable plate 1300 may contact the retainer 1210 and the housing 1110.

[0252] The movable plate 1300 may include a first surface facing the housing 1110 and a second surface facing the retainer 1210. The first surface of the movable plate 1300 may include a plurality of first protrusions 1310 spaced apart from each other in the direction of a first axis. The second surface of the movable plate 1300 may include a plurality of second protrusions 1320 spaced apart from each other in the direction of a second axis.

[0253] The movable plate 1300 may include a plurality of first protrusions formed on one surface and a plurality of second protrusions formed on another surface. The first protrusions may be first protrusions 1310. The second protrusions may be second protrusions 1320. The x-axis may correspond to a straight line connecting two of the plurality of first protrusions. The x-axis may coincide with or be parallel to the straight line connecting two of the plurality of first protrusions. The y-axis may correspond to a straight line connecting two of the plurality of second protrusions. The y-axis may coincide with or be parallel to the straight line connecting two of the plurality of second protrusions. In a variant, the first protrusion may be a second protrusion 1320 and the second protrusion may be a first protrusion 1310.

[0254] The movable plate 1300 may include a first protrusion 1310. The first protrusion 1310 may be disposed within the housing 1110. The first protrusion 1310 may contact the housing 1110. The first protrusion 1310 may be disposed within a recess 1115 of the housing 1110. The first protrusion 1310 may provide a first axial tilt center relative to the retainer 1210. The first protrusion 1310 may provide an x-axis tilt center for the retainer 1210. The first protrusion 1310 may include two first protrusions. These two first protrusions may be spaced apart from each other in the x-axis direction. These two first protrusions may be disposed on the x-axis. The retainer 1210 may be tilted about the first protrusion 1310 of the movable plate 1300 by means of a first drive unit 1410. The retainer 1210 may be tilted vertically about the first protrusion 1310 of the movable plate 1300 by means of the first drive unit 1410.

[0255] The first axis of the movable plate 1300 can be defined by the first protrusion 1310 of the movable plate 1300 and the groove 1115 of the housing 1110. In this embodiment, by arranging the first protrusion 1310 of the movable plate 1300 on the housing 1110 side instead of on the retainer 1210 side, the center of rotation for tilting around the first axis can be further away. This improves the accuracy of the Hall value used to detect the amount of tilt movement of the first axis, ensuring sufficient mechanical travel for the x-axis tilt drive.

[0256] The movable plate 1300 may include a second protrusion 1320. The second protrusion 1320 may be disposed in the retainer 1210. The second protrusion 1320 may contact the retainer 1210. The second protrusion 1320 may be disposed in a groove 1211 of the retainer 1210. The second protrusion 1320 may provide the retainer 1210 with a second axis tilt center perpendicular to the first axis. The second protrusion 1320 may provide the retainer 1210 with a y-axis tilt center. The second protrusion 1320 may include two second protrusions. These two second protrusions may be spaced apart from each other in the y-axis direction. These two second protrusions may be disposed on the y-axis. The retainer 1210 may be tilted about the second protrusion 1320 of the movable plate 1300 via the second drive unit 1420. The retainer 1210 may be tilted in the left-right direction relative to the second protrusion 1320 of the movable plate 1300 via the second drive unit 1420.

[0257] As a variation, the first protrusion 1310 of the movable plate 1300 provides a y-axis tilt center for the retainer 1210, and the second protrusion 1320 of the movable plate 1300 can provide an x-axis tilt center.

[0258] The reflector drive unit 1000 may include grease. The grease may be disposed between the movable plate 1300 and the housing 1110. The grease may be formed of a material different from that of the damper 1500. The grease may be spaced apart from the damper 1500. The grease may be distinguishable from the damper 1500. The grease may be applied in a shape different from that of the damper 1500. The grease may be applied at a location different from that of the damper 1500.

[0259] The reflective member driving device 1000 may include a driving unit 1400. The driving unit 1400 can move the moving part 1200 relative to the fixed part 1100. The driving unit 1400 can tilt the moving part 1200 relative to the fixed part 1100. The driving unit 1400 can tilt the retaining member 1210. The driving unit 1400 can tilt the moving part 1200 relative to the mutually perpendicular x-axis and y-axis of the moving plate 1300. The driving unit 1400 may include a coil and a magnet. The driving unit 1400 can move the moving part 1200 by electromagnetic interaction. In a variant, the driving unit 1400 may include a shape memory alloy (SMA).

[0260] The drive unit 1400 may include a first drive unit 1410 and a second drive unit 1420. The first drive unit 1410 may include a first drive magnet 1411 and a first coil 1412. The drive unit 1400 may include a second drive unit 1420, a second drive magnet 1421, and a second coil 1422. The first drive magnet 1411 and the first coil 1412 can tilt the retainer 1210 about a first axis. The second drive magnet 1421 and the second coil 1422 can tilt the retainer 1210 about a second axis perpendicular to the first axis. One of the first drive magnet 1411 and the second drive magnet 1421 may be referred to as a third magnet, and the other may be referred to as a fourth magnet.

[0261] The drive unit 1400 may include a first drive unit 1410. The first drive unit 1410 can tilt the moving part 1200 relative to the fixed part 1100 about a first axis. The first drive unit 1410 can tilt the retaining member 1210 relative to the first axis of the moving plate 1300. The first drive unit 1410 can tilt the moving part 1200 relative to the fixed part 1100 about an x-axis. The first drive unit 1410 may include a coil and a magnet. The first drive unit 1410 can move the moving part 1200 by electromagnetic interaction. As a variation, the first drive unit 1410 may include a shape memory alloy (SMA).

[0262] The first drive unit 1410 may include a first drive magnet 1411. The first drive magnet 1411 may be disposed in the retainer 1210. The first drive magnet 1411 may be disposed on the lower surface of the retainer 1210. The first drive magnet 1411 may be disposed on the lower surface of the retainer 1210. The first drive magnet 1411 may be fixed to the retainer 1210. The first drive magnet 1411 may be fixed to the retainer 1210 by adhesive. The first drive magnet 1411 may be disposed between the retainer 1210 and the lower surface of the housing 1110. The first drive magnet 1411 may be disposed between the retainer 1210 and the lower plate of the housing 1110. The first drive magnet 1411 may move integrally with the retainer 1210. The first drive magnet 1411 may tilt the retainer 1210. The first drive magnet 1411 may tilt the retainer 1210 relative to a first axis. The first driving magnet 1411 can be arranged to face the first coil 1412. The first driving magnet 1411 can be positioned at a location corresponding to the first coil 1412. The first driving magnet 1411 can interact with the first coil 1412. The first driving magnet 1411 can electromagnetically interact with the first coil 1412. At least a portion of the first driving magnet 1411 can be arranged in the groove 1217 of the retainer 1210.

[0263] The first driving magnet 1411 may include a first surface in the direction toward the reflecting member 1220. The second magnet 1120 may include a first surface in the direction toward the reflecting member 1220. The first surface of the first driving magnet 1411 may include a first region closest to the second magnet 1120. The first region of the first driving magnet 1411 may have a different polarity than the first surface of the second magnet 1120. The first surface of the first driving magnet 1411 may include a second region having a polarity different from the first region. The first region of the first driving magnet 1411 has an S pole, and the second region may have an N pole. In this case, the first surface of the second magnet 1120 may have an N pole. As a variation, the first region of the first driving magnet 1411 has an N pole, and the second region may have an S pole.

[0264] In this embodiment, magnetic field interference can be minimized by arranging the magnetic polarities of the first driving magnet 1411 and the second magnet 1120.

[0265] The first driving magnet 1411 may include a second surface opposite to the first surface of the first driving magnet 1411. The second surface of the first driving magnet 1411 may include a third region having a polarity different from that of the first region. The second surface of the first driving magnet 1411 may include a fourth region having a polarity different from that of the second region. The second surface of the first driving magnet 1411 may face the first coil 1412. The third region has an N pole, and the fourth region may have an S pole. As a variation, the third region has an S pole, and the fourth region may have an N pole.

[0266] The first driving magnet 1411 may include a neutral portion disposed between the first region and the second region. The first driving magnet 1411 may also include a neutral portion disposed between the third region and the fourth region. This neutral portion may be a portion having a near-neutral polarity.

[0267] The region of the first driving magnet 1411 closest to the first surface of the second magnet 1120 may have a polarity for generating 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 driving magnet 1411 closest to the first surface of the second magnet 1120 may generate an attractive force with each other.

[0268] Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the central portion of the moving part 1200. The first surface of the first driving magnet 1411 may include a first region and a second region with different polarities. The first surface of the second magnet 1120 may be arranged closer to the first driving magnet 1411 than the second driving magnet 1421. The first region of the first driving magnet 1411 may be arranged 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.

[0269] Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the central portion of the retainer 1210. The first surface of the first driving magnet 1411 and the first surface of the second magnet 1120 may include regions with different polarities.

[0270] The first drive unit 1410 may include a first coil 1412. The first coil 1412 may be disposed on a substrate 1130. The first coil 1412 may be disposed within a housing 1110. The first coil 1412 may be disposed on the substrate 1130 at a position corresponding to the first drive magnet 1411. The first coil 1412 may be disposed below a retainer 1210. The first coil 1412 may interact with the first drive magnet 1411. When current is applied to the first coil 1412, an electromagnetic field is formed around the first coil 1412, thereby interacting with the first drive magnet 1411. The first drive magnet 1411 and the first coil 1412 may tilt the retainer 1210 relative to a first axis. In this case, the first axis may be the x-axis.

[0271] In this embodiment, a first-direction driving current can be applied to the first coil 1412 to drive the first coil 1412. At this time, a second-direction driving current opposite to the first-direction driving current can be used to drive the first coil 1412. That is, only one of the reverse or forward currents can be supplied to the first coil 1412.

[0272] The reflector drive device 1000 may include a Hall sensor 1413. The Hall sensor 1413 can detect the first drive magnet 1411. The Hall sensor 1413 can detect the magnetic force of the first drive magnet 1411. The Hall sensor 1413 can detect the position of the retainer 1210. The Hall sensor 1413 can detect the position of the reflector 1220. The Hall sensor 1413 can detect the tilt amount centered on the x-axis of the retainer 1210.

[0273] The reflector drive device 1000 may include a magnetic yoke 1414. The magnetic yoke 1414 may be arranged between the first drive magnet 1411 and the retainer 1210. The magnetic yoke 1414 may be formed in a shape corresponding to the first drive magnet 1411. The magnetic yoke 1414 may increase the interaction force between the first drive magnet 1411 and the first coil 1412.

[0274] The drive unit 1400 may include a second drive unit 1420. The second drive unit 1420 can tilt the moving part 1200 relative to the fixed part 1100 about a second axis. The second drive unit 1420 can tilt the retaining member 1210 relative to a second axis perpendicular to the first axis of the moving plate 1300. The second drive unit 1420 can tilt the moving part 1200 relative to the fixed part 1100 about the y-axis. The second drive unit 1420 may include a coil and a magnet. The second drive unit 1420 can move the moving part 1200 by electromagnetic interaction. As a variation, the second drive unit 1420 may include a shape memory alloy (SMA).

[0275] The second drive unit 1420 may include a second drive magnet 1421. The second drive magnet 1421 may be disposed within the retainer 1210. The second drive magnet 1421 may be disposed on two side surfaces of the retainer 1210. The second drive magnet 1421 may be fixed to the retainer 1210. The second drive magnet 1421 may be fixed to the retainer 1210 by adhesive. The second drive magnet 1421 may be disposed between the retainer 1210 and the side surface of the housing 1110. The second drive magnet 1421 may be disposed between the retainer 1210 and the side plate of the housing 1110. The second drive magnet 1421 may move integrally with the retainer 1210. The second drive magnet 1421 may tilt the retainer 1210. The second drive magnet 1421 may tilt the retainer 1210 relative to a second axis perpendicular to the first axis. The second drive magnet 1421 may be arranged to face the second coil 1422. The second driving magnet 1421 may face the second coil 1422. The second driving magnet 1421 may be arranged at a position corresponding to the second coil 1422. The second driving magnet 1421 may interact with the second coil 1422. The second driving magnet 1421 may electromagnetically interact with the second coil 1422.

[0276] 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 retainer 1210. The first sub-magnet 1421-1 may be arranged facing the first sub-coil 1422-1. The first sub-magnet 1421-1 may be positioned at a location 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.

[0277] The second driving 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 retainer 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 have the same size and shape as the first sub-magnet 1421-1. The second sub-magnet 1421-2 may be disposed facing 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.

[0278] The second drive unit 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 within 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 two side surfaces of the holder 1210. When current is applied to the second coil 1422, an electromagnetic field is formed around the second coil 1422, thereby interacting with the second drive magnet 1421. The second coil 1422 may include two sub-coils 1421-1 and 1421-2 arranged opposite to each other relative to the holder 1210. The two sub-coils 1421-1 and 1421-2 may be electrically connected to each other. The second drive magnet 1421 and the second coil 1422 may tilt the holder 1210 relative 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.

[0279] The second coil 1422 may include a first sub-coil 1422-1. The first sub-coil 1422-1 may be disposed on the substrate 1130. The first sub-coil 1422-1 may be disposed within the housing 1110. The first sub-coil 1422-1 may be disposed on a second portion of the substrate 1130. The first sub-coil 1422-1 may be disposed on the side of the retainer 1210. When current is applied to the first sub-coil 1422-1, an electromagnetic field is formed around the first sub-coil 1422-1, thereby interacting with the first sub-magnet 1421-1.

[0280] The second coil 1422 may include a second sub-coil 1422-2. The second sub-coil 1422-2 may be disposed on the substrate 1130. The second sub-coil 1422-2 may be disposed within the housing 1110. The second sub-coil 1422-2 may be disposed on a second portion of the substrate 1130. The second sub-coil 1422-2 may be disposed on the side of the retainer 1210. When current is applied to the second sub-coil 1422-2, an electromagnetic field is formed around the second sub-coil 1422-2, thereby interacting with the second sub-magnet 1421-2.

[0281] The second driving magnet 1421 may include a first sub-magnet 1421-1 disposed on a first side surface of the retainer 1210 and a second sub-magnet 1421-2 disposed on a second side surface of the retainer 1210. The second coil 1422 may include a first sub-coil 1422-1 disposed on the substrate and at a position corresponding to the first sub-magnet 1421-1, and a second sub-coil 1422-2 disposed on the substrate and at a position corresponding to the second sub-magnet 1421-2.

[0282] The reflector drive device 1000 may include a Hall sensor 1423. The Hall sensor 1423 can detect the second drive magnet 1421. The Hall sensor 1423 can detect the magnetic force of the second drive magnet 1421. The Hall sensor 1423 can detect the position of the retainer 1210. The Hall sensor 1423 can detect the position of the reflector 1220. The Hall sensor 1423 can detect the tilt amount centered on the y-axis of the retainer 1210.

[0283] The reflector drive device 1000 may include a magnetic yoke 1424. The magnetic yoke 1424 may be arranged between the second drive magnet 1421 and the retainer 1210. The magnetic yoke 1424 may be formed to have a shape corresponding to the shape of the second drive magnet 1421. The magnetic yoke 1424 may increase the interaction force between the second drive magnet 1421 and the second coil 1422.

[0284] The reflector drive device 1000 may include a damper 1500. The damper 1500 may include an adhesive material. The damper 1500 may be adhesive. The damper 1500 may be disposed between the fixed portion 1100 and the moving portion 1200. The damper 1500 may be disposed between the rigid mover 1230 and the housing 1110. The damper 1500 may connect the rigid mover 1230 and the housing 1110. The damper 1500 may be coupled to the rigid mover 1230 and the housing 1110. The damper 1500 may be disposed within the rigid mover 1230. The damper 1500 may be coupled to the rigid mover 1230. The rigid mover 1230 may be coupled to the housing 1110. The housing 1110 and the rigid mover 1230 may be attached to each other via the damper 1500.

[0285] The damper 1500 may be disposed on at least one of the upper and lower portions of the first portion 1111 of the housing 1110. The damper 1500 may connect the protrusion 1231 of the rigid mover 1230 to the housing 1110. At least a portion of the damper 1500 may be disposed in a recess 1119 of the housing 1110 between the protrusion 1231 of the rigid mover 1230 and the housing 1110. At least a portion of the damper 1500 may be disposed in a second recess recessed from the first recess portion of the housing 1110.

[0286] In this embodiment, a combination of gel components acting as a damper between the housing 1110 and the rigid actuator 1230 can be applied. This allows for improved actuator responsiveness by ensuring phase margin while maintaining the gain value. Specifically, FRA characteristics can be improved. In particular, the tilt response characteristics centered on the x-axis can be improved. Yaw (tilt) centered on the y-axis can also be enhanced.

[0287] Figure 30 and Figure 31 This is a diagram used to explain the tilt of the reflective member driving device about the x-axis according to this embodiment.

[0288] In this embodiment, in the initial state where no current is supplied to the first drive unit 1410, the retainer 1210 can be arranged between the upper and lower plates of the housing 1110. At this time, the retainer 1210 can contact the upper plate of the housing 1110 (see reference). Figure 30 ).

[0289] At this time, when a current in the first direction is applied to the first coil 1412, through the electromagnetic interaction between the first coil 1412 and the first driving magnet 1411, the retaining member 1210 can tilt downward about the first protrusion 1310 of the movable plate 1300 as the center (see Figure 31(θ).

[0290] In other words, current is applied to the first coil 1412, allowing the holder 1210 to tilt downwards about the x-axis relative to the housing 1110. At this time, because the reflective member 1220 also tilts along with the holder 1210, the optical path is altered, thereby canceling out the jitter detected by the gyroscope sensor 1150.

[0291] In this embodiment, the first coil 1412 can be controlled using only the current in the first direction, and the current in the opposite direction to the first direction can be omitted. This fundamentally prevents the problem of the movable plate 1300 detaching and being removed when a current in the second direction is applied to the first coil 1412.

[0292] More specifically, as a comparative example, when the centers of the first magnet 1240 and the second magnet 1120 are arranged at the same height as the first protrusion 1310 of the moving plate 1300, when 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 uneven, the moving part 1200 may slide due to the electromagnetic force, and the moving plate 1300 may be separated and removed. When 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 rigid mover 1230 falls out as much as the gap between the first magnet 1240 and the second magnet 1120, and the moving plate 1300 may be separated. This may be the reason for poor Hall calibration dynamic characteristics.

[0293] In this embodiment, the central axis of the repulsive force and the central axis of the x-axis driving force can be offset by a certain distance. Therefore, the reflective member 1220 can be mechanically displaced in the upward direction. This upward direction can be the opposite of gravity.

[0294] In this embodiment, control can be achieved via code rather than electrical control. In pivot structures like this embodiment, it is difficult to know the initial position in the open state due to factors such as deflection caused by gravity, thus requiring a closing method (whereby the moving part 1200 contacts the fixed part 1100 in the initial state). In this embodiment, because control is achieved through a closing method, more precise actuation can be performed. Furthermore, in this embodiment, the noise generated by the moving part 1200 moving around can also be minimized using this closing method.

[0295] Figures 32 to 34 This is a view used to explain the tilt of the reflective member driving device according to this embodiment about the y-axis.

[0296] In this embodiment, in the initial state where no current is supplied to the second drive unit 1420, the retainer 1210 can be arranged between the two side plates of the housing 1110. At this time, the retainer 1210 can be in a state spaced apart from both side plates of the housing 1110 (see reference). Figure 32 ).

[0297] At this time, when current in the first direction is applied to the second coil 1422, due to the electromagnetic interaction between the second coil 1422 and the second driving magnet 1421, the retaining member 1210 can tilt to one side about the second protrusion 1320 of the movable plate 1300 (see reference). Figure 33 (a).

[0298] Simultaneously, when a current in a second direction opposite to the first direction is applied to the second coil 1422, due to the electromagnetic interaction between the second coil 1422 and the second driving magnet 1421, the retaining member 1210 can tilt to the other side with the second protrusion 1320 of the movable plate 1300 as the center (see reference). Figure 34 (b).

[0299] In other words, current is selectively applied to the second coil 1422 in two directions, allowing the holder 1210 to tilt in the left-right direction relative to the housing 1110 about the y-axis. At this time, because the reflective member 1220 also tilts along with the holder 1210, the optical path is altered, thereby canceling out the jitter detected by the gyroscope sensor 1150. Therefore, in this embodiment, hand tremor correction for both x-axis and y-axis tilt (i.e., two-axis tilt) can be performed.

[0300] In the following description, the lens driving device according to this embodiment will be described with reference to the accompanying drawings.

[0301] Figure 35 This is a perspective view of the lens driving device according to this embodiment; Figure 36 This is a perspective view of the lens driving device according to this embodiment, with some components omitted. Figure 37 yes Figure 36 A perspective view of the lens drive device in the state shown, viewed from another direction; Figure 38 This is a perspective view of the lens driving device according to this embodiment, with some components omitted. Figure 39 This is a perspective view of the lens driving device according to this embodiment, omitting structures such as the substrate and coil. Figure 40 Is Figure 39 The perspective view of the lens drive device shown omits the state of the first lens and related components; Figure 41 These are perspective views and partial enlarged views of a portion of the lens driving device according to this embodiment; Figure 42This is a diagram used to explain the arrangement structure of the coil and sensor of the lens driving device according to this embodiment; Figure 43 It is illustrated in Figure 39 The perspective view of the lens drive device shown omits the state of the second housing. Figure 44 From Figure 43 The perspective view of the lens drive device shown omits the state of the guide rail. Figure 45 This is an enlarged view of some structures of the lens driving device according to this embodiment; Figure 46 This is a perspective view of the first moving part and the second moving part of the lens driving device according to this embodiment and their related structures. Figure 47 This is a perspective view of the second moving part and related structure of the lens driving device according to this embodiment; Figure 48 This is an exploded perspective view of the lens driving device according to this embodiment; Figure 49 This is a perspective view of the second housing of the lens driving device according to this embodiment; Figure 50 and Figure 51 This is an exploded perspective view of some structures of the lens driving device according to this embodiment; Figure 52 This is a cross-sectional view of the lens driving device according to this embodiment; Figure 53 This is a cross-sectional view of a portion of the lens driving device according to this embodiment; Figure 54 This is a diagram illustrating the arrangement of the EEPROM in the lens driving device according to this embodiment; Figure 55 This is a view illustrating the double-stage protrusions and associated connection structure of the housing of the lens driving device according to this embodiment; Figure 56 This is a diagram illustrating the cover of the lens driving device according to this embodiment; Figure 57 This is a side view of the moving part and the driving magnet of the lens driving device according to this embodiment; Figure 58 This is a cross-sectional view illustrating the cover and related structure of the lens driving device according to this embodiment; Figure 59 This is a cross-sectional view illustrating the first moving part and related structure of the lens driving device according to this embodiment; Figure 60 This is a cross-sectional view illustrating the second moving part and related structure of the lens driving device according to this embodiment; Figure 61 This is an exploded perspective view of the lens driving device according to this embodiment; Figure 62 This is a cross-sectional view illustrating the height difference between the first coil and the second coil of the lens driving device according to this embodiment; Figure 63 This is a cross-sectional perspective view of the first moving part and the first driving part of the lens driving device according to this embodiment; Figure 64 This is a cross-sectional view of the first moving part and the first driving part of the lens driving device according to this embodiment; and Figure 65 This is a cross-sectional view of the lens driving device according to this embodiment.

[0302] The lens drive device 2000 can perform zoom functions. The lens drive device 2000 can perform continuous zoom functions. The lens drive device 2000 can perform autofocus (AF) functions. The lens drive device 2000 can move the lens. The lens drive device 2000 can move the lens along the optical axis. The lens drive device 2000 can move lenses arranged in multiple groups according to each group. The lens drive device 2000 can move a second group of lenses. The lens drive device 2000 can move a third group of lenses. The lens drive device 2000 can be a lens actuator. The lens drive device 2000 can be an AF actuator. The lens drive device 2000 can be a zoom actuator. The lens drive device 2000 may include a voice coil motor (VCM). The lens drive device 2000 can be an actuator device.

[0303] The lens driving device 2000 may include a lens. Alternatively, the lens may be described as a configuration of the camera device 10, rather than a configuration of the lens driving device 2000. The lens may be arranged in the optical path formed by the reflecting member 1220 and the image sensor 3400 of the reflecting member driving device 1000. The lens may include multiple lenses. The multiple lenses may form multiple groups. The lenses may form three groups. The lenses may include a first lens group to a third lens group. The first lens group, the second lens group, and the third lens group may be arranged sequentially between the reflecting member 1220 and the image sensor 3400. The first lens group may include a first lens 2120. The second lens group may include a second lens 2220. The third lens group may include a third lens 2320.

[0304] The lens driving device 2000 may include a fixing part 2100. The fixing part 2100 may be a part that is relatively fixed when the first moving part 2200 and the second moving part 2300 move.

[0305] The lens driving device 2000 may include a housing 2110. The fixing part 2100 may include the housing 2110. The housing 2110 may be disposed outside the first retainer 2210 and the second retainer 2310. The housing 2110 may accommodate at least a portion of the first retainer 2210 and the second retainer 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 the upper plate, the rear plate may be referred to as the lower plate, and the connecting plates may be referred to as side plates.

[0306] The housing 2110 may include a first housing 2110-1. The first housing 2110-1 may be a cover. The first housing 2110-1 may form the front plate of the housing 2110. The first housing 2110-1 may be connected to a first lens 2120. The first housing 2110-1 may be a cover. The first housing 2110-1 may be connected to a reflecting member drive device 1000. The first lens 2120 may be fixed to the first housing 2110-1. The first housing 2110-1 may be connected to a protrusion 2115 of the second housing 2110-2.

[0307] Housing 2110 may include a second housing 2110-2. The second housing 2110-2 may be a single housing. The second housing 2110-2 may form the rear plate and connecting plate of housing 2110. The second housing 2110-2 may be open to the front. The first housing 2110-1 may be attached to the front of the second housing 2110-2. A portion of the guide rail 2130 may be arranged between the first housing 2110-1 and the second housing 2110-2. The first housing 2110-1 may be referred to as a cover, and the second housing 2110-2 may be referred to as a housing.

[0308] The housing 2110 may include a first groove 2111. The first groove 2111 may be connected to a protrusion 1116 of the housing 1110 of the reflector drive device 1000. The first groove 2111 may be formed in a shape corresponding to the protrusion 1116 of the reflector drive device 1000. An adhesive for connecting the reflector drive device 1000 to the lens drive device 2000 may be disposed in the first groove 2111.

[0309] The housing 2110 may include a second recess 2112. The second recess 2112 may be connected to a protrusion 1117 of the housing 1110 of the reflector drive device 1000. The protrusion 1117 of the reflector drive device 1000 may be inserted into the second recess 2112. The second recess 2112 may be formed in a shape corresponding to the protrusion 1117 of the reflector drive device 1000. An adhesive for connecting the reflector drive device 1000 to the lens drive device 2000 may be disposed in the second recess 2112.

[0310] The housing 2110 may include a first hole 2113. The first hole 2113 can expose the protrusion 2211 of the first retainer 2210 and the protrusion 2311 of the second retainer 2310. The first hole 2113 may be formed in the connecting plate of the housing 2110. During the manufacturing and testing steps, the proper operation of the lens drive device 2000 can be checked by inspecting whether the protrusions 2211 of the first retainer 2210 and the protrusions 2311 of the second retainer 2310 are exposed through the first hole 2113.

[0311] The housing 2110 may include a plate 2113-1. The plate 2113-1 may cover the first hole 2113. The plate 2113-1 is arranged in the first hole 2113 and may close the first hole 2113.

[0312] The housing 2110 may include a second hole 2114. The second hole 2114 may be a coil receiving hole in which the first coil 2412 and the second coil 2422 are arranged. The first coil 2412 and the second coil 2422 may be arranged 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.

[0313] The housing 2110 may include a protrusion 2115. The protrusion 2115 may be formed in the second housing 2110-2. The protrusion 2115 may be formed as a two-stage protrusion. The protrusion 2115 may be connected to a guide rail 2130. The protrusion 2115 may be connected to the first housing 2110-1. The guide rail 2130 may be connected to the larger diameter portion of the protrusion 2115, and the first housing 2110-1 may be connected to the smaller diameter portion of the protrusion 2115.

[0314] A protrusion 2115 can pass through a guide rail 2130 and be inserted into a first housing 2110-1. The protrusion 2115 can be formed with two steps. The protrusion 2115 can include two regions or portions with different widths or diameters. The protrusion 2115 can include a first portion 2115a. The first portion 2115a can be disposed on the guide rail 2130. The protrusion 2115 can include a second portion 2115b. The second portion 2115b can extend from the first portion 2115a. The second portion 2115b can be disposed within the first housing 2110-1. The second portion 2115b can have a smaller width than the first portion 2115a. The second portion 2115b can have a smaller diameter than the first portion 2115a. Figure 55 As shown, the first diameter D1 of the first part 2115a can be larger than the second diameter D2 of the second part 2115b.

[0315] Protrusion 2115 may include multiple protrusions. Protrusion 2115 may include four protrusions. Protrusion 2115 may include a first protrusion to a fourth protrusion. Protrusion 2115 may include a first protrusion 2115-1 and a second protrusion 2115-2. The second portion 2115b of the first protrusion 2115-1 may have a wider width than the second portion 2115b of the second protrusion 2115-2. In a variant, the second portion 2115b of the first protrusion 2115-1 may have a smaller width than the second portion 2115b of the second protrusion 2115-2. The first portion 2115a of the first protrusion 2115-1 and the first portion 2115a of the second protrusion 2115-2 may have the same width. In a variant, the first portion 2115a of the first protrusion 2115-1 and the first portion 2115a of the second protrusion 2115-2 may have different widths. The width of protrusion 2115 may be its diameter.

[0316] The protrusion 2115 may include a first protrusion 2115-1. The first protrusion 2115-1 may include a first portion 2115a having a first diameter D2 and a second portion 2115b protruding from the first portion 2115a 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. The third portion of the second protrusion 2115-2 may be referred to as the first portion, and the fourth portion of the second protrusion 2115-2 may be referred to as the second portion. In this case, the fourth diameter D4 may be smaller than the second diameter D1. Thus, the first protrusion 2115-1 may be more tightly connected to the first housing 2110-1 than the second protrusion 2115-2.

[0317] The housing 2110 may include a guide protrusion 2116. The guide protrusion 2116 may be formed on the inner surface of the housing 2110. The guide protrusion 2116 may be shaped to correspond to the shape of at least a portion of the first retainer 2210 and the second retainer 2310. Thus, the guide protrusion 2116 can guide the movement of the first retainer 2210 and the second retainer 2310 in the optical axis direction. In this case, the optical axis direction may be the z-axis direction perpendicular to the x-axis and y-axis. The guide protrusion 2116 may be arranged in the optical axis direction. The guide protrusion 2116 may extend in the optical axis direction. The guide protrusion 2116 can prevent the first retainer 2210 and the second retainer 2310 from being separated and removed in a direction opposite to the direction in which the ball 2500 is arranged.

[0318] The housing 2110 may include a recess 2117. The recess 2117 may be formed in the first housing 2110-1. The recess 2117 of the first housing 2110-1 may connect to a protrusion 2115 of the second housing 2110-2. The first housing 2110-1 may include a hole 2117a, in which the protrusion 2115 of the second housing 2110-2 is disposed. The first housing 2110-1 may include a recess 2117, in which the protrusion 2115 of the second housing 2110-2 is disposed. The first housing 2110-1 may include a hole 2117a and a recess 2117, in which the protrusion 2115 is disposed. The first housing 2110-1 may include a plurality of holes 2117a and recesses 2117, in which the protrusion 2115 is disposed.

[0319] The first housing 2110-1 may include two holes 2117a and two recesses 2117, with protrusions 2115 arranged in these holes 2117a and two recesses 2117. One of the two holes of the first housing 2110-1 may be formed with a shape and diameter corresponding to the protrusion 2115 of the second housing 2110-2. The other of the two holes of the first housing 2110-1 may be formed with a different shape than the protrusion 2115 of the second housing 2110-2 or with a larger diameter than the protrusion 2115 of the second housing 2110-2. Each of the two recesses of the first housing 2110-1 may be formed with a different shape than the protrusion 2115 of the second housing 2110-2 or with a larger diameter than the protrusion 2115 of the second housing 2110-2. Only one of the four holes and recesses of the first housing 2110-1 may be formed with a shape and size corresponding to the protrusion 2115 of the second housing 2110-2. As a variation, two or more of the four holes and grooves of the first housing 2110-1 may be formed in a shape and size corresponding to the protrusion 2115 of the second housing 2110-2.

[0320] 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 recess in the substrate 2140. The protrusion 2118 may be formed with corresponding dimensions and shapes to fit into the recess in the substrate 2140.

[0321] The housing 2110 may include a vent 2119. The vent 2119 may be formed in the rear panel of the housing 2110. The vent 2119 may form a gap between the housing 2110 and the virtual glass 2600. Air may flow into the gap between the housing 2110 and the virtual glass 2600. Gas generated during the adhesive curing process may escape through the vent 2119.

[0322] The lens driving device 2000 may include a first lens 2120. Alternatively, the first lens 2120 may be described as a configuration of the camera device 10, rather than a configuration of the lens driving device 2000. The fixing part 2100 may include the first lens 2120. The first lens 2120 may be arranged on the optical axis. The first lens 2120 may be arranged between the reflecting member 1220 and the image sensor 3400. The first lens 2120 may be arranged between the reflecting member 1220 and the second lens 2220. The first lens 2120 may be arranged in the first housing 2110-1. The first lens 2120 may be fixed to the first housing 2110-1. Even when the second lens 2220 and the third lens 2320 move, the first lens 2120 may remain fixed.

[0323] The first lens 2120 may be a first lens group. The first lens 2120 may include multiple lenses. The first lens 2120 may include three lenses.

[0324] The lens drive device 2000 may include a guide rail 2130. The fixing part 2100 may include the guide rail 2130. The guide rail 2130 may be coupled to the fixing part 2100. The guide rail 2130 may be coupled between the first housing 2110-1 and the second housing 2110-2. The guide rail 2130 may be coupled to a protrusion 2115 of the second housing 2110-2. The guide rail 2130 may guide the movement of the first retainer 2210 and the second retainer 2310. The guide rail 2130 may guide the first retainer 2210 and the second retainer 2310 to move in the optical axis direction. The guide rail 2130 may include a track arranged in the optical axis direction. The guide rail 2130 may include a track extending in the optical axis direction. The guide rail 2130 may include a track formed to cause the ball 2500 to roll. The guide rail 2130 may be provided separately from the housing 2110 for flatness management.

[0325] The guide rail 2130 may include a hole 2131. A protrusion 2115 of the second housing 2110-2 may be arranged in the hole 2131. The protrusion 2115 of the second housing 2110-2 may pass through the hole 2131. The protrusion 2115 of the second housing 2110-2 may be inserted into the hole 2131.

[0326] Hole 2131 may include multiple holes. Hole 2131 may include a first to a fourth hole. Hole 2131 may include four holes.

[0327] Two of the four holes in the guide rail 2130 may be formed with a shape and diameter corresponding to the protrusion 2115 of the second housing 2110-2. The other two holes in the guide rail 2130 may be formed with a shape different from the protrusion 2115 of the second housing 2110-2, or with a diameter larger than the protrusion 2115 of the second housing 2110-2. The guide rail 2130 may include one or more holes formed with a shape and diameter corresponding to the protrusion 2115 of the second housing 2110-2. The guide rail 2130 may include one or more holes formed with a shape different from the protrusion 2115 of the second housing 2110-2, or with a diameter larger than the protrusion 2115 of the second housing 2110-2.

[0328] The guide rail 2130 may include a plurality of holes in which the protrusions 2115 of the second housing 2110-2 are disposed. Some of the holes in the guide rail 2130 may be formed as regular holes, having a shape and diameter corresponding to the protrusions 2115 of the second housing 2110-2. However, the regular holes may be regular grooves formed in a recess shape. Some of the remaining holes in the guide rail 2130 may be formed as elongated holes with a shape different from that of the protrusions 2115 of the second housing 2110-2. However, the elongated holes may be formed as elongated grooves in a recess shape. The protrusions 2115 may be boss pins.

[0329] In this embodiment, the protrusion 2115 is formed as a two-stage structure, which mitigates misalignment of the first housing 2110-1 due to breakage of the protrusion 2115 when the guide rail 2130 is inserted. On the other hand, because the reference position of the first housing 2110-1 is determined by regular holes and the remainder is formed as elongated holes, assemblability is enhanced and rotation of the first housing 2110-1 is prevented.

[0330] The first housing 2110-1 may include a hole 2117a or a groove 2117, and a protrusion 2115 of the second housing 2110-2 is arranged in the hole 2117a or the groove 2117. The diameter of the hole 2131 of the guide rail 2130 may be larger than the diameter of the hole 2117a or the groove 2117 of the first housing 2110-1.

[0331] The guide rail 2130 may include a protrusion 2132. The protrusion 2132 may protrude from the rear surface of the guide rail 2130. The protrusion 2132 may be inserted into a groove in the second housing 2110-2.

[0332] The guide rail 2130 may include a track groove 2133. The track grooves 2212 and 2312 of the moving parts 2200 and 2300 may include: a first track groove and a second track groove arranged on one side of the drive magnets 2411 and 2421; and a third track groove and a fourth track groove arranged on the other side of the drive magnets 2411 and 2421. The track groove 2133 may be formed at positions corresponding to the first and second track grooves of the moving parts 2200 and 2300. The guide rail 2130 may be formed as a flat surface at positions corresponding to the third and fourth track grooves of the moving parts 2200 and 2300. The track groove 2133 may be a V-shaped groove. Thus, the track groove 2133 can make two-point contact with the ball 2500.

[0333] The lens driving device 2000 may include a substrate 2140. The fixing portion 2100 may include the substrate 2140. The substrate 2140 may be disposed within the fixing portion 2100. The substrate 2140 may be disposed on two side surfaces 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. The substrate 2140 may be electrically connected to the printed circuit board 3300 via conductive members. The substrate 2140 may electrically connect the printed circuit board 3300 and the reflective member driving device 1000. Alternatively, a separate substrate may be provided for electrically connecting the printed circuit board 3300 and the reflective member driving device 1000. The substrate 2140 may include a printed circuit board (PCB). The substrate 2140 may include a rigid PCB (RPCB). The substrate 2140 may include a flexible PCB (FPCB). The substrate 2140 may include an RFPCB in which the FPCB and RPCB are interconnected. The substrate 2140 may include two RPCB layers and an FPCB disposed between the two RPCB layers. The substrate 2140 may include terminals that are connected to the printed circuit board 3300. The printed circuit board 3300 may include terminals that are connected to the substrate 2140. The substrate 2140 may be formed separately from the printed circuit board 3300. The substrate 2140 may be manufactured as a separate component from the printed circuit board 3300.

[0334] 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. Terminals may be disposed 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 bent inward relative to the second region 2140-2. This minimizes the size of the printed circuit board 3300 while ensuring sufficient area for soldering arrangements to connect the terminals 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.

[0335] The substrate 2140 may include a plurality of terminals connected to the printed circuit board 3300 via conductive members. The substrate 2140 may include a first region 2140-1 in which the plurality of terminals are arranged. The substrate 2140 may include a second region 2140-2 in which coils 2412 and 2422 are arranged. With the first region 2140-1 bent inward relative to the second region 2140-2, the plurality of terminals can be connected to the printed circuit board 3300. The fixing portion 2100 may include a housing 2110, which includes an inclined surface 2110b. The first region 2140-1 may extend along the inclined surface 2110b of the housing 2110 to be inclined relative to the second region 2140-2.

[0336] The substrate 2140 may include a first region 2140-1 for connection with a sensor package. The first region 2140-1 of the substrate 2140 may be bent to enhance the processability for soldering. In addition, for consistency in bending for each product, a beveled surface 2110b of the housing 2110 may be provided.

[0337] Substrate 2140 may include multiple substrates. Substrate 2140 may include two substrates. Substrate 2140 may include a first substrate 2141 and a second substrate 2142. Substrate 2140 may include a first substrate 2141 and a second substrate 2142, which are arranged on opposite sides of the moving portions 2200 and 2300 and spaced apart from each other. The first substrate 2141 and the second substrate 2142 may be arranged in the housing 2110. The first substrate 2141 and the second substrate 2142 may be arranged on opposite sides relative to the first retainer 2210 and the second retainer 2310 and spaced apart from each other.

[0338] 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. A first Hall sensor 2413 and a second Hall sensor 2414 may be disposed on the first substrate 2141.

[0339] 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. The second coil 2422 may be disposed on the second substrate 2142. The third Hall sensor 2423 and the fourth Hall sensor 2424 may be disposed on the second substrate 2142.

[0340] The lens drive device 2000 may include a suspension (SUS) 2145. The suspension 2145 may be disposed on the substrate 2140. The suspension 2145 may enhance the strength of the substrate 2140. The suspension 2145 may dissipate heat generated by the substrate 2140.

[0341] The lens driving device 2000 may include an EEPROM 2150. The EEPROM 2150 may be a memory, a memory component, or a data storage component. The EEPROM 2150 may be disposed on a substrate 2140. The EEPROM 2150 may be disposed on the inner surface of the substrate 2140. The EEPROM 2150 may be disposed on the inner surface of a second substrate 2142. At this time, the second coil 2422 may also be disposed on the inner surface of the second substrate 2142. The EEPROM 2150 may be disposed outside the coils 2412 and 2422. The EEPROM 2150 may be electrically connected to the coils 2412 and 2422. The EEPROM 2150 may be electrically connected to the first coil 2412 and the second coil 2422. The EEPROM 2150 may be disposed on one or more of the first substrate 2141 and the second substrate 2142. The EEPROM 2150 can independently control the first coil 2412 and the second coil 2422. The fixing part 2100 may include a housing 2110, which includes a recess. The EEPROM 2150 may be disposed in the recess of the housing 2110.

[0342] Because calibration data (Cal.Data) performed in a previous process is used during the manufacturing stage via EEPROM 2150, the time required for software porting can be minimized. This enhances the manufacturability of the camera device 10. EEPROM 2150 can be used during the manufacturing stage to control the current applied to the first coil 2412 and the second coil 2422 before connecting the lens drive device 2000 to the driver IC 3900. In other words, EEPROM 2150 can be used to test whether the lens drive device 2000 is operating correctly. In this embodiment, a separate PCB is provided for driving, and it may include EEPROM 2150 for driving during active alignment.

[0343] In this embodiment, the PCB used to implement zoom and autofocus functions can be a separate component. When the sensor package and lens drive unit 2000 are connected, each component is driven and may require connection at an optimal position. Therefore, it may be necessary to control the driver IC 3900 for driving. The driver IC 3900 can be arranged within the sensor package. An external driver IC can be used for driving without performing soldering. A separate EEPROM 2150 can be present to use calibration data (Cal.Data) performed in a previous process. By reading the information in the EEPROM 2150 and applying the calibration data (Cal.Data), control is performed using the external driver IC to connect the sensor package and lens drive unit 2000.

[0344] The lens driving device 2000 may include moving parts 2200 and 2300. Moving parts 2200 and 2300 may be arranged within the fixed part 2100. Moving parts 2200 and 2300 may include multiple moving parts. Moving parts 2200 and 2300 may include a first moving part 2200 and a second moving part 2300.

[0345] The moving parts 2200 and 2300 may include retainers 2210 and 2310 and lenses 2220 and 2320 disposed on retainers 2210 and 2310. Retainers 2210 and 2310 may be disposed within a second housing 2110-2. The first retainer 2210 and the second retainer 2310 may be disposed within housing 2110.

[0346] The fixed part 2100 may include a housing 2110 and a first lens 2120 disposed in the housing 2110. The first moving part 2200 may include a first retainer 2210 and a second lens 2220 disposed in the first retainer 2210. The second moving part 2300 may include a second retainer 2310 and a third lens 2320 disposed in the second retainer 2310. The first moving part 2200 and the second moving part 2300 can move independently. The first moving part 2200 may be a second group. The first moving part 2200 may perform a zoom function. The second moving part 2300 may be a third group. The second moving part 2300 may perform an autofocus (AF) function. Separate actuators may be built-in, allowing the first moving part 2200 and the second moving part 2300 to be driven independently.

[0347] The first moving part 2200 may include a first retainer 2210 disposed in the housing 2110 and a second lens 2220 disposed in the first retainer 2210. The second moving part 2300 may include a second retainer 2310 disposed in the housing 2110 and a third lens 2320 disposed in the second retainer 2310. The second lens 2220 may be disposed between the first lens 2120 and the third lens 2320.

[0348] Each of the first to third lenses 2120, 2220, and 2320 may include multiple lenses. The second lens 2220 and the third lens 2320 may be formed from D-cut lenses. The first lens 2120 may be formed from a lens having a circular cross-section. As a variation, the first lens 2120 may be formed as a D-cut lens.

[0349] Retainers 2210 and 2310 may include a plurality of protrusions 2211 and 2311. Retainers 2210 and 2310 may include two protrusions 2211 and 2311 spaced apart from each other in the optical axis direction. The upper surface of each of the two protrusions 2211 and 2311 may include flat surfaces 2211-1 and 2311-1 and inclined surfaces 2211-2 and 2311-2 inclined from the flat surfaces 2211-1 and 2311-1.

[0350] The moving parts 2200 and 2300 may include track grooves 2212 and 2312 in which ball bearings 2500 are arranged. The lengths of the track grooves 2212 and 2312 of the moving parts 2200 and 2300 (reference) Figure 57 a) can be two to four times the diameter of the ball 2500. The lengths of the track grooves 2212 and 2312 of the moving parts 2200 and 2300 can be 2.5 to 3.5 times the diameter of the ball 2500. The lengths of the track grooves 2212 and 2312 of the moving parts 2200 and 2300 can be approximately three times the diameter of the ball 2500. The ball 2500 can move with a certain degree of freedom in the length direction. This enhances the rolling properties of the ball 2500. That is, the phenomenon of "the ball 2500 being pushed rather than rolling" can be minimized. This enhances the driving performance of the moving parts 2200 and 2300, such as linearity and hysteresis.

[0351] The track grooves 2212 and 2312 of the moving parts 2200 and 2300 may include a first track groove and a second track groove arranged on one side of the drive magnets 2411 and 2421, and a third track groove and a fourth track groove arranged on the other side of the drive magnets 2411 and 2421. The first track groove and the second track groove may be spaced apart from each other by a distance two to three times the diameter of the ball 2500 (see reference). Figure 57(b) The first and second track grooves can be spaced apart from each other by a distance of one to four times the diameter of the ball 2500. The third and fourth track grooves can be spaced apart from each other by a distance of two to three times the diameter of the ball 2500. The third and fourth track grooves can be spaced apart by a distance of 1.5 to 3.5 times the diameter of the ball 2500. If the distance between the track grooves is too short, multiple balls may aggregate and cause the moving parts 2200 and 2300 to tilt. That is, this embodiment can prevent the phenomenon that "multiple balls may aggregate and cause the moving parts 2200 and 2300 to tilt".

[0352] The lens driving device 2000 may include a first moving part 2200. The first moving part 2200 is movable relative to the fixed part 2100. At least a portion of the first moving part 2200 may be arranged between the fixed part 2100 and the second moving part 2300. The first moving part 2200 is movable between the fixed part 2100 and the second moving part 2300.

[0353] The lens driving device 2000 may include a first retainer 2210. The first moving part 2200 may include the first retainer 2210. The first retainer 2210 may be disposed within the housing 2110. The first retainer 2210 may be movable relative to the housing 2110. At least a portion of the first retainer 2210 may be spaced apart from the housing 2110. The first retainer 2210 may contact the housing 2110. The first retainer 2210 may contact the housing 2110 during movement. Alternatively, in an initial state, the first retainer 2210 may contact the housing 2110.

[0354] The first retainer 2210 may include a protrusion 2211. The protrusion 2211 may be a test protrusion. The protrusion 2211 may be formed on the outer surface of the first retainer 2210. The protrusion 2211 may protrude from the first retainer 2210. The protrusion 2211 is visible from the outside through a first hole 2113 in the housing 2110. The protrusion 2211 may be used to test whether the lens drive device 2000 is functioning properly. The protrusion 2211 may include a flat surface 2211-1 and an inclined surface 2211-2.

[0355] The first retainer 2210 may include a track groove 2212. A ball 2500 may be disposed in the track groove 2212. The ball 2500 can move by rolling within the track groove 2212. The track groove 2212 and the ball 2500 may contact at two points. The track groove 2212 may be disposed in the optical axis direction. The track groove 2212 may extend in the optical axis direction.

[0356] The guide groove 2212 may include multiple guide grooves. The guide groove 2212 may include four guide grooves. The guide groove 2212 may include first to fourth guide grooves. One or more balls 2500 may be arranged in each of the multiple guide grooves 2212.

[0357] The first retainer 2210 may include protrusions 2213. Protrusions 2213 may be formed on the surface of the first retainer 2210 facing the first housing 2110-1. The first retainer 2210 may include a first surface facing the first housing 2110-1, and a plurality of protrusions 2213 are formed on the first surface and contact the first housing 2110-1. When the first retainer 2210 moves closer to the first housing 2110-1, the protrusions 2213 may contact the first housing 2110-1. At this time, when the protrusions 2213 are formed, the contact area between the first retainer 2210 and the first housing 2110-1 can be reduced compared to omitting the protrusions 2213. Therefore, the impact and noise generated due to the contact between the first retainer 2210 and the first housing 2110-1 can be minimized.

[0358] The lens driving device 2000 may include a second lens 2220. Alternatively, the second lens 2220 may be described as a configuration of the camera device 10, rather than a configuration of the lens driving device 2000. The first moving part 2200 may include the second lens 2220. The second lens 2220 may be arranged on the optical axis. The second lens 2220 may be arranged between the reflecting member 1220 and the image sensor 3400. The second lens 2220 may be arranged between the first lens 2120 and the third lens 2320. The second lens 2220 may be arranged in the first holding member 2210. The second lens 2220 may be coupled to the first holding member 2210. The second lens 2220 may be fixed to the first holding member 2210. The second lens 2220 may be movable relative to the first lens 2120. The second lens 2220 may be movable separately from the third lens 2320.

[0359] The second lens 2220 can be a second lens group. The second lens 2220 can include multiple lenses. The second lens 2220 can include two lenses.

[0360] The lens driving device 2000 may include a second moving part 2300. The second moving part 2300 is movable relative to the fixed part 2100. The second moving part 2300 can move independently of the first moving part 2200. The second moving part 2300 may be arranged at the rear side of the first moving part 2200. The second moving part 2300 can move in directions toward and away from the first moving part 2200.

[0361] The lens driving device 2000 may include a second retainer 2310. The second moving part 2300 may include the second retainer 2310. The second retainer 2310 may be disposed within the housing 2110. The second retainer 2310 may be movable relative to the housing 2110. At least a portion of the second retainer 2310 may be spaced apart from the housing 2110. The second retainer 2310 may contact the housing 2110. The second retainer 2310 may contact the housing 2110 during movement. Alternatively, in an initial state, the second retainer 2310 may contact the housing 2110. The second retainer 2310 may contact a first retainer 2210. The second retainer 2310 may be spaced apart from the first retainer 2210. The retainer 2310 may contact the first retainer 2210 during movement. Alternatively, in an initial state, the second retainer 2310 may contact the first retainer 2210.

[0362] The second retainer 2310 may include a protrusion 2311. The protrusion 2311 may be a test protrusion. The protrusion 2311 may be formed on the outer surface of the second retainer 2310. The protrusion 2311 may protrude from the second retainer 2310. The protrusion 2311 is visible from the outside through a first hole 2113 in the housing 2110. The protrusion 2311 may be used to test whether the lens drive device 2000 is functioning properly. The protrusion 2311 may include a flat surface 2311-1 and an inclined surface 2311-2.

[0363] The second retainer 2310 may include a track groove 2312. A ball 2500 may be disposed in the track groove 2312. The ball 2500 can move by rolling within the track groove 2312. The track groove 2312 and the ball 2500 may contact at two points. The track groove 2312 may be disposed in the optical axis direction. The track groove 2312 may extend in the optical axis direction.

[0364] The track groove 2312 may include multiple track grooves. The track groove 2312 may include four track grooves. The track groove 2312 may include first to fourth track grooves. One or more balls 2500 may be arranged in each of the multiple track grooves 2312.

[0365] The second retainer 2310 may include a protrusion 2313. The protrusion 2313 may be formed on the surface of the second retainer 2310 facing the first retainer 2210. The second retainer 2310 may include a second surface facing the first retainer 2210 and a plurality of protrusions 2313 formed on the second surface and in contact with the second retainer 2310. When the second retainer 2310 moves in a direction closer to the first retainer 2210, the protrusions 2313 may contact the first retainer 2210. For example, when the protrusions 2313 are formed, the contact area between the second retainer 2310 and the first retainer 2210 can be reduced compared to omitting the protrusions 2313. Therefore, the impact and noise generated due to the contact between the second retainer 2310 and the first retainer 2210 can be minimized.

[0366] The lens driving device 2000 may include a third lens 2320. Alternatively, the third lens 2320 may be described as a configuration of the camera device 10, rather than a configuration of the lens driving device 2000. The second moving part 2300 may include the third lens 2320. The third lens 2320 may be arranged on the optical axis. The third lens 2320 may be arranged between the reflecting member 1220 and the image sensor 3400. The third lens 2320 may be arranged between the second lens 2220 and the image sensor 3400. The third lens 2320 may be arranged in the second holding member 2310. The third lens 2320 may be coupled to the second holding member 2310. The third lens 2320 may be fixed to the second holding member 2310. The third lens 2320 may be movable relative to the first lens 2120. The third lens 2320 may be movable separately from the second lens 2220.

[0367] The third lens 2320 can be a third lens group. The third lens 2320 can include multiple lenses. The third lens 2320 can include two lenses.

[0368] The lens driving device 2000 may include a driving unit 2400. The driving unit 2400 can move at least some of a plurality of lenses. The driving unit 2400 can move a first moving part 2200 and a second moving part 2300 relative to a fixed part 2100. The driving unit 2400 may include a coil and a magnet. The driving unit 2400 can move the first moving part 2200 and the second moving part 2300 via electromagnetic interaction. In a variant, the driving unit 2400 may include a shape memory alloy.

[0369] The drive unit 2400 may include drive magnets 2411 and 2421. Drive magnets 2411 and 2421 may be arranged in moving portions 2200 and 2300. Drive magnets 2411 and 2421 may be arranged on retaining members 2210 and 2310. Magnets 2411 and 2421 may include a first drive magnet 2411 arranged in the first moving portion 2200 and a second drive magnet 2421 arranged in the second moving portion 2300.

[0370] The drive unit 2400 may include coils 2412 and 2422. Coils 2412 and 2422 may be arranged on the substrate 2140. Coils 2412 and 2422 may be arranged at positions corresponding to drive magnets 2411 and 2421.

[0371] Coils 2412 and 2422 may include a first coil 2412, which is disposed on the first substrate 2141 and at a position corresponding to the first driving magnet 2411. Coils 2412 and 2422 may include a second coil 2422, which is disposed on the second substrate 2141 and at a position corresponding to the second driving magnet 2421.

[0372] When current is applied to the first coil 2412, the first moving part 2200 can move to perform a zoom function. When current is applied to the second coil 2422, the second moving part 2300 can move to perform an autofocus function.

[0373] The camera device 10 may include a driver IC 3900 electrically connected to coils 2412 and 2422. The driver IC 3900 may be disposed on a printed circuit board 3300. That is, the driver IC 3900 may be disposed on a substrate separate from the substrate 2140 on which coils 2412 and 2422 are disposed. Therefore, the driver IC 3900 may not be electrically connected to coils 2412 and 2422 before the printed circuit board 3300 is connected to the lens driving device 2000.

[0374] The drive unit 2400 may include a first drive unit 2410. The first drive unit 2410 can move the first moving part 2200 relative to the fixed part 2100. The first drive unit 2410 can also move the first moving part 2200 relative to the second moving part 2300. The first drive unit 2410 can be used to drive a zoom function. Alternatively, the first drive unit 2410 can be used to drive an autofocus function.

[0375] The first driving unit 2410 may include a first driving magnet 2411. The first driving magnet 2411 may be disposed in the first moving part 2200. The first driving magnet 2411 may be disposed in the first holding member 2210. The first driving magnet 2411 may be disposed on a side surface of the first holding member 2210. The first driving magnet 2411 may be coupled to the first holding member 2210. The first driving magnet 2411 may be fixed to the first holding member 2210. The first driving magnet 2411 may be fixed to the first holding member 2210 by adhesive. The first driving magnet 2411 may move integrally with the first holding member 2210. The first driving magnet 2411 may be arranged facing 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 driving magnet 2411 can interact electromagnetically with the first coil 2412.

[0376] A portion of the first driving magnet 2411 may overlap with the second driving magnet 2421 in a first direction. A portion of the first driving magnet 2411 may overlap with the second driving magnet 2421 in a first direction perpendicular to the optical axis. The first driving magnet 2411 may include a portion that does not overlap with the second driving magnet 2421 in the first direction.

[0377] The first driving magnet 2411 may be formed to have the same dimensions as the second driving magnet 2421. The first driving magnet 2411 may be arranged closer to the first lens 2120 than the second driving magnet 2421.

[0378] The first driving magnet 2411 may include a first magnet portion 2411-1. The first magnet portion 2411-1 may have a first polarity. The first driving magnet 2411 may include a second magnet portion 2411-2. The second magnet portion 2411-2 may have a second polarity different from the first polarity. In this case, the first polarity may be the N pole and the second polarity may be the S pole. Conversely, the first polarity may be the S pole and the second polarity may be the N pole.

[0379] The first driving 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 an unmagnetized portion. In this embodiment, the sensitivity and linearity of the output signal can be enhanced by utilizing the gap between the two Hall sensors and the magnets. The gap between the magnets may be smaller than the cavity of the coil. As a variation, two monopole magnets can be used without a neutral portion and a gap.

[0380] The first driving magnet 2411 may include a first magnet portion 2411-1 having N poles and S poles. The first driving magnet 2411 may include a second magnet portion 2411-2 having N poles and S poles. The first driving magnet 2411 may include a neutral portion 2411-3 or a gap disposed between the first magnet portion 2411-1 and the second magnet portion 2411-2. The first magnet portion 2411-1 may include a region having N poles and a region having S poles. The second magnet portion 2411-2 may include a region having N poles and a region having S poles. The neutral portion 2411-3 or the gap may have a neutral polarity. The dimensions of the neutral portion 2411-3 or the gap in the optical axis direction (see reference) Figure 64 (b) is smaller than the cavity size of the first coil 2412 (reference) Figure 64 a) and may be greater than the distance between the first Hall sensor 2413 and the second Hall sensor 2414 (reference) Figure 64 (c).

[0381] The first driving unit 2410 may include a first coil 2412. The first coil 2412 may be disposed in the fixing portion 2100. The first coil 2412 may be disposed at a position corresponding to the first driving magnet 2411. 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 in the housing 2110. The first coil 2412 may be disposed outside the first holding member 2210. When current is applied to the first coil 2412, an electromagnetic field is formed around the first coil 2412 to interact with the first driving magnet 2411.

[0382] As a variation, the first coil 2412 can be arranged on the first retainer 2210, and the first driving magnet 2411 can be arranged in the housing 2110.

[0383] In the optical axis direction, the center of the first coil 2412 can be positioned further forward than the center of the second coil 2422. A portion of the first coil 2412 can overlap with the second coil 2422 in a first direction perpendicular to the optical axis direction. The first coil 2412 may include a portion that does not overlap with the second coil 2422 in the first direction. Another portion of the first coil 2412 may not overlap with the second coil 2422 in the first direction. The first coil 2412 can be formed to have the same dimensions as the second coil 2422. The first coil 2412 can be positioned closer to the first lens 2120 than the second coil 2422. In the optical axis direction and a second direction perpendicular to the first direction, the center of the first coil 2412 can be positioned at a height corresponding to the center of the second coil 2422. In this case, the first direction can be the x-axis direction. The second direction can be the y-axis direction.

[0384] The centers of coils 2412 and 2422 can be located at the center of the driving area. Because the strokes of the first moving part 2200 and the second moving part 2300 used to implement the functions in this embodiment are different, the positions of the first coil 2412 and the second coil 2422 can be asymmetrical.

[0385] The first coil 2412 can be formed in a ring shape. The first coil 2412 can be formed as a square ring or a circular ring. Even when the first coil 2412 is formed as a rectangular ring, the corners can be curved. The first coil 2412 may include a first portion 2412-1 and a second portion 2412-2 having a gap G1 therebetween. A first Hall sensor 2413 and a second Hall sensor 2414 can be arranged in the gap G1 of the first coil 2412.

[0386] The first coil 2412 may include a first portion 2412-1 facing the first magnet portion 2411-1. The first coil 2412 may include a second portion 2412-2 facing the second magnet portion 2411-2. The first portion 2412-1 of the first coil 2412 may not overlap with the second magnet portion 2411-2 in a first direction. The second portion 2412-2 of the first coil 2412 may not overlap with the first magnet portion 2411-1 in the first direction. In this case, the first direction may be the x-axis direction.

[0387] The lens driving device 2000 may include a Hall sensor. This Hall sensor can detect a first driving magnet 2411. The Hall sensor may include multiple Hall sensors. It 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 to form a gap G2 between them. The first Hall sensor 2413 and the second Hall sensor 2414 can detect the first driving magnet 2411. The first Hall sensor 2413 and the second Hall sensor 2414 can detect the magnetic force of the first driving magnet 2411. The first Hall sensor 2413 and the second Hall sensor 2414 can detect the position of the first retainer 2210. The first Hall sensor 2413 and the second Hall sensor 2414 can detect the position of the second lens 2220. The Hall sensor may be disposed on a substrate 2140. The Hall sensor may be disposed in the cavity between coils 2412 and 2422.

[0388] The lens driving device 2000 may include a magnetic yoke 2415. The magnetic yoke 2415 may be disposed between the first driving magnet 2411 and the first retainer 2210. The magnetic yoke 2415 may also be disposed between the first driving magnet 2411 and the first moving part 2200. The magnetic yoke 2415 may be formed in a shape corresponding to the first driving magnet 2411. The magnetic yoke 2415 may increase the interaction force between the first driving magnet 2411 and the first coil 2412. The magnetic yoke 2415 may surround at least three surfaces of the first driving magnet 2411.

[0389] The yoke 2415 may include an extension 2415-1. The extension 2415-1 may surround the front and rear surfaces of the first drive magnet 2411. The yoke 2415 may include a groove 2415-2. The groove 2415-2 may be formed in the central portion of the body portion of the yoke 2415.

[0390] The drive unit 2400 may include a second drive unit 2420. The second drive unit 2420 can move the second moving part 2300 relative to the fixed part 2100. The second drive unit 2420 can also move the second moving part 2300 relative to the first moving part 2200. The second drive unit 2420 can be used to drive an autofocus function. Alternatively, the second drive unit 2420 can be used to drive a zoom function.

[0391] The second drive unit 2420 may include a second drive magnet 2421. The second drive magnet 2421 may be disposed in the second moving part 2300. The second drive magnet 2421 may be disposed in the second holding member 2310. The second drive magnet 2421 may be disposed on a side surface of the second holding member 2310. The second drive magnet 2421 may be coupled to the second holding member 2310. The second drive magnet 2421 may be fixed to the second holding member 2310. The second drive magnet 2421 may be fixed to the second holding member 2310 by adhesive. The second drive magnet 2421 may move integrally with the second holding member 2310. The second drive magnet 2421 may be arranged to face the second coil 2422. The second drive magnet 2421 may face the second coil 2422. The second drive magnet 2421 may be disposed at a position corresponding to the second coil 2422. The second drive magnet 2421 may interact with the second coil 2422. The second driving magnet 2421 can interact electromagnetically with the second coil 2422.

[0392] The second drive unit 2420 may include a second coil 2422. The second coil 2422 may be disposed in the fixing portion 2100. The second coil 2422 may be disposed at a position corresponding to the second drive magnet 2421. 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 24222 may be disposed in the housing 2110. The second coil 2422 may be disposed outside the second holding member 2310. When current is applied to the second coil 2422, an electromagnetic field is formed around the second coil 2422 to interact with the second drive magnet 2421.

[0393] As a variation, the second coil 2422 can be arranged on the second retainer 2310, and the second driving magnet 2421 can be arranged on the housing 2110.

[0394] The lens driving device 2000 may include a Hall sensor. This Hall sensor can detect a second driving magnet 2421. The Hall sensor may include multiple Hall sensors. It 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 to form a gap G2 between them. The third Hall sensor 2423 and the fourth Hall sensor 2424 can detect the second driving magnet 2421. The third Hall sensor 2423 and the fourth Hall sensor 2424 can detect the magnetic force of the second driving magnet 2421. The third Hall sensor 2423 and the fourth Hall sensor 2424 can detect the position of the second holding member 2310. The third Hall sensor 2423 and the fourth Hall sensor 2424 can detect the position of the third lens 2320.

[0395] The lens driving device 2000 may include a magnetic yoke 2425. The magnetic yoke 2425 may be arranged between the second driving magnet 2421 and the second retainer 2310. The magnetic yoke 2425 may be formed to have a shape corresponding to the shape of the second driving magnet 2421. The magnetic yoke 2425 may increase the interaction force between the second driving magnet 2421 and the second coil 2422.

[0396] The lens driving device 2000 may include a first magnetic yoke 2430. The first magnetic yoke 2430 may be made of a magnetic material. The first magnetic yoke 2430 may be arranged such that an attractive force acts between the first magnetic yoke 2430 and the first driving magnet 2411. The first magnetic yoke 2430 may be disposed in a housing 2110. The first magnetic yoke 2430 may be disposed on a substrate 2140. The first magnetic yoke 2430 may be disposed on a first substrate 2141. The first retainer 2210 may press the ball 2500 toward the guide rail 2130 by the attractive force between the first driving magnet 2411 and the first magnetic yoke 2430. That is, the ball 2500 may be maintained between the first retainer 2210 and the guide rail 2130 without being separated and removed by the attractive force between the first driving magnet 2411 and the first magnetic yoke 2430.

[0397] In a second direction perpendicular to both the optical axis and the first direction, the width of the first yoke 2430 may be greater than the width of the first surface of the first driving magnet 2411 facing the first surface of the first yoke 2430.

[0398] The lens driving device 2000 may include a second magnetic yoke 2440. The second magnetic yoke 2440 may be made of a magnetic material. The second magnetic yoke 2440 may be arranged such that an attractive force acts between the second magnetic yoke 2440 and the second driving magnet 2421. The second magnetic yoke 2440 may be disposed in a housing 2110. The second magnetic yoke 2440 may be disposed on a substrate 2140. The second magnetic yoke 2440 may be disposed on a second substrate 2142. The second retainer 2310 may press the ball 2500 toward the guide rail 2130 by the attractive force between the second driving magnet 2421 and the second magnetic yoke 2440. That is, the ball 2500 may be maintained between the second retainer 2310 and the guide rail 2130 without being separated and removed by the attractive force between the second driving magnet 2421 and the second magnetic yoke 2440.

[0399] In a second direction perpendicular to both the optical axis and the first direction, the width of the second yoke 2440 may be greater than the width of the first surface of the second driving magnet 2421 facing the first surface of the second yoke 2440.

[0400] The lens driving device 2000 may include a ball bearing 2500. The ball bearing 2500 can guide the movement of the first retainer 2210. The ball bearing 2500 may be arranged between the guide rail 2130 and the moving parts 2200 and 2300. The ball bearing 2500 may be arranged between the first retainer 2210 and the guide rail 2130. The ball bearing 2500 can guide the movement of the second retainer 2310. The ball bearing 2500 may be arranged between the second retainer 2310 and the guide rail 2130. The ball bearing 2500 may be formed in a spherical shape. The ball bearing 2500 can roll on the track groove 2212 of the first retainer 2210 and the track 2133 of the guide rail 2130. The ball bearing 2500 can move in the optical axis direction between the track groove 2212 of the first retainer 2210 and the track 2133 of the guide rail 2130. The ball 2500 can roll on the track groove 2312 of the second retainer 2310 and the track 2133 of the guide track 2130. The ball 2500 can move in the optical axis direction between the track groove 2312 of the second retainer 2310 and the track 2133 of the guide track 2130. The ball 2500 may include multiple balls. A total of eight balls 2500 can be provided, four in the first retainer 2210 and four in the second retainer 2310.

[0401] The lens driving device 2000 may include a virtual glass 2600. The virtual glass 2600 may be disposed within a housing 2110. The virtual glass 2600 may close the rear opening of the housing 2110. The virtual glass 2600 may be formed to be transparent to allow light to pass through.

[0402] The lens driving device 2000 may include foam 2700. Foam 2700 may be an impact-absorbing member. Foam 2700 may be disposed in the fixing portion 2100. Foam 2700 may be disposed in the housing 2110. Foam 2700 may be disposed in the first housing 2110-1. Foam 2700 may contact the first retainer 2210. Foam 2700 may contact the second retainer 2310. Foam 2700 may be disposed in the second housing 2110-2. Foam 2700 is capable of minimizing the impact and noise generated by the movement of the first retainer 2210 and the second retainer 2310. Foam 2700 may be disposed at the portion where the first retainer 2210 collides with the housing 2110. Foam 2700 may be disposed at the portion where the second retainer 2310 collides with the housing 2110.

[0403] The lens drive device 2000 may include an impact-absorbing member. The impact-absorbing member may be formed of rubber. The impact-absorbing member may be formed of silicon.

[0404] In this embodiment, by using a foam tape as a stop, noise can be minimized and damage to the injection-molded product can be prevented. Due to this structure, in areas where it is difficult to attach the foam tape, such as between the first moving part 2200 and the second moving part 2300, and between the moving parts 1200 of the reflective member drive device 1000, a protruding structure can be used to minimize noise and prevent damage to the injection-molded product.

[0405] Figures 66 to 68 This diagram is used to explain the implementation of the zoom function and autofocus function of the lens driving device according to this embodiment.

[0406] In this embodiment, in the initial state where current is not supplied to the drive unit 2400, the first lens 2120, the second lens 2220, and the third lens 2320 can be arranged in a state aligned with the optical axis OA (see reference). Figure 66 ).

[0407] At this time, when current is applied to the first coil 2412, due to the electromagnetic interaction between the first coil 2412 and the first driving magnet 2411, the second lens 2220 can move along the optical axis OA (see reference). Figure 67 (a) When the second lens 2220 moves while the first lens 2120 is fixed, a zoom function can be performed. When a current in the first direction is applied to the first coil 2412, the second lens 2220 can move in a direction closer to the first lens 2120. When a current in the 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.

[0408] Simultaneously, when current is applied to the second coil 2422, the third lens 2320 can move along the optical axis OA due to the electromagnetic interaction between the second coil 2422 and the second driving magnet 2421 (see reference). Figure 68 (b) The autofocus (AF) function can be performed by the relative movement of the third lens 2320 relative to the first lens 2120 and the second lens 2220. When a current in the first direction is applied to the second coil 2422, the third lens 2320 can move in a direction closer to the first lens 2120, while when a current in the 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.

[0409] The lens driving device 2000 described above can be used as described later. Figures 73 to 79 The lens driving device is used instead. That is, the reflective member driving device 1000 and the lens driving device in this embodiment are used instead. Figures 73 to 79 The lens driving devices can be arranged together.

[0410] The camera device according to this embodiment will now be described with reference to the accompanying drawings.

[0411] Figure 1 This is a perspective view of the camera device according to this embodiment; Figure 2 This is a bottom perspective view of the camera device according to this embodiment; Figure 3 This is a plan view of the camera device according to this embodiment; Figure 4 It is along Figure 3 A sectional view taken by line AA; Figure 5 It is along Figure 3 A sectional view taken by line BB; Figure 6 It is along Figure 3 A cross-sectional view taken by line CC; Figure 7 This is an exploded perspective view of the camera device according to this embodiment; Figure 8 This is a perspective view of the camera device according to this embodiment, omitting the cover member; Figure 69 This is a perspective view of a portion of the camera device according to this embodiment; and Figure 70 This is an exploded perspective view of the image sensor, filter, and related structures of the camera device according to this embodiment.

[0412] Camera assembly 10 may include a cover member 3100. The cover member 3100 may be a "cover" or a "shield". The cover member 3100 may be arranged to cover the reflector drive unit 1000 and the lens drive unit 2000. The cover member 3100 may be arranged outside the reflector drive unit 1000 and the lens drive unit 2000. The cover member 3100 may surround the reflector drive unit 1000 and the lens drive unit 2000. The cover member 3100 may contain the reflector drive unit 1000 and the lens drive unit 2000. The cover member 3100 may be formed of a metallic material. The cover member 3100 may shield against electromagnetic interference (EMI). An insulating epoxy resin may be applied to prevent contact between the solder and the shield.

[0413] The cover member 3100 may include an upper plate 3110. The upper plate 3110 may include an opening or hole. Light can enter through the opening or hole in the upper plate 3110. The opening or hole in the upper plate 3110 may be formed at a position corresponding to the reflective member 1220.

[0414] The cover member 3100 may include a side plate 3120. The side plate 3120 may include multiple 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 a first side plate and a second side plate arranged opposite to each other, as well as a third side plate and a fourth side plate arranged opposite to each other.

[0415] Camera device 10 may include a printed circuit board 3300 (PCB). PCB 3300 may be a circuit board or a PCB. Sensor base 3500 may be disposed on PCB 3300. PCB 3300 may be electrically connected to reflector drive device 1000 and lens drive device 2000. PCB 3300 may provide various circuits, components, control units, etc., to convert the image formed on image sensor 3400 into electrical signals and transmit them to external devices.

[0416] The printed circuit board 3300 may include a marking unit 3310. The marking unit 3310 may be disposed on the rear surface of the printed circuit board 3300.

[0417] 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 may enhance the strength of the printed circuit board 3300. The suspension 3320 may dissipate heat generated in the printed circuit board 3300.

[0418] 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 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. For example, the image sensor 3400 may be attached to the printed circuit board 3300 using surface mount technology (SMT). As another example, the image sensor 3400 may be attached to the printed circuit board 3300 using flip-chip technology. The image sensor 3400 may be arranged such that the lens and optical axis coincide. The optical axis of the image sensor 3400 and the optical axis of the lens may be aligned. The image sensor 3400 may convert light incident on the effective image area of ​​the image sensor 3400 into an electrical signal. The image sensor 3400 may include any one or more of charge-connected devices (CCDs), metal-oxide-semiconductor (MOS), CPDs, and CIDs.

[0419] The camera device 10 may include a sensor base 3500. The sensor base 3500 may be disposed on a 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 in which the filter 3600 is disposed, so that light passing through the filter 3600 may be incident on the image sensor 3400.

[0420] Camera device 10 may include a filter 3600. The filter 3600 can be used to block light of a specific frequency band passing through a lens from incident on the image sensor 3400. The filter 3600 may be disposed between the lens and the image sensor 3400. The filter 3600 may be disposed on a sensor base 3500. The filter 3600 may include an infrared filter. The infrared filter can block light in the infrared region from incident on the image sensor 3400. The filter 3600 may be disposed on the side opposite to the image sensor 3400 relative to the sensor base 3500. A portion of the filter 3600 may protrude from the sensor base 3500.

[0421] The camera device 10 may include a substrate 3700. The substrate 3700 may be connected to a printed circuit board 3300. The substrate 3700 may extend from the printed circuit board 3300. The substrate 3700 may include terminals electrically connected to the reflector drive device 1000. The substrate 3700 may include an outwardly extending extension portion.

[0422] The camera device 10 may include a connector 3710. The connector 3710 may be disposed on a substrate 3700. The connector 3710 may be disposed on the lower surface of an extension of the substrate 3700. The connector 3710 may, for example, be connected to a power unit of a smartphone.

[0423] Camera device 10 may include a temperature sensor 3800. The temperature sensor 3800 may be disposed on substrate 2140. The temperature sensor 3800 may be disposed adjacent to coils 2412 and 2422. The temperature sensor 3800 may be disposed overlapping with coils 2412 and 2422. Coils 2412 and 2422 may be driven and generate heat. The temperature sensor 3800 can detect the heat generated by coils 2412 and 2422. The temperature sensor 3800 is disposed adjacent to coils 2412 and 2422 to check the degree of heat generation. The temperature sensor 3800 can detect temperature. Based on the degree of heat generation detected by the temperature sensor 3800, a compensation value can be applied to zoom and / or autofocus (AF) operation. The temperature detected by the temperature sensor 3800 can be used to more accurately control any one or more of the following functions: image stabilization, autofocus, and zoom.

[0424] Camera device 10 may include driver IC 3900. Driver IC 3900 may be electrically connected to lens drive device 2000. Driver IC 3900 may be described as one configuration of lens drive device 2000. Driver IC 3900 may be electrically connected to first coil 2412 and second coil 2422 of lens drive device 2000. Driver IC 3900 may supply current to first coil 2412 and second coil 2422 of lens drive device 2000. Driver IC 3900 may control at least one of the voltage or current applied to each of the first coil 2412 and second coil 2422 of lens drive device 2000. Driver IC 3900 may be electrically connected to Hall sensors 2413, 2414, 2423 and 2424. The driver IC 3900 can perform feedback control of the voltage and current applied to the first coil 2412 and the second coil 2422 by means of the positions of the second lens 2220 and the third lens 2320 detected by Hall sensors 2413, 2414, 2423 and 2424.

[0425] In the following description, the optical device according to this embodiment will be described with reference to the accompanying drawings.

[0426] Figure 71 This is a perspective view of the front side of the optical device according to this embodiment; and Figure 72 This is a perspective view of the rear surface of the optical device according to this embodiment.

[0427] Optical device 1 may include one or more of the following: mobile phone, mobile phone, portable terminal, mobile terminal, smartphone, smart tablet, portable smart device, digital camera, laptop computer, digital broadcasting terminal, personal digital assistant (PDA), portable multimedia player (PMP), and navigation device. Optical device 1 may include any device for capturing images or photographs.

[0428] The optical device 1 may include a main body 20. The optical device 1 may include a camera device 10. The camera device 10 may be disposed within the main body 20. The camera device 10 may capture images of a subject. The optical device 1 may include a display 30. The display 30 may be disposed on the main body 20. The display 30 may output one or more of the video and images captured by the camera device 10. The display 30 may be disposed on a first surface of the main body 20. The camera device 10 may be disposed on one or more of the first surface and a second surface opposite to the first surface of the main body 20.

[0429] The camera device 10 according to this embodiment can be a foldable camera module. The foldable camera module can have a field of view of 15 to 40 degrees. The foldable camera module can have a focal length of 18mm to 20mm or longer. The foldable camera module can be used as a rear camera of the optical device 1. A main camera with a field of view of 70 to 80 degrees can be arranged on the rear surface of the optical device 1. In this case, the foldable camera can be arranged next to the main camera. That is, the camera device 10 according to this embodiment can be applied to any one or more of the plurality of rear cameras of the optical device 1. The camera device 10 according to this embodiment can be applied to one of two, three, four, or more rear cameras such as those of the optical device 1.

[0430] Meanwhile, the camera device 10 according to this embodiment can be arranged on the front surface of the optical device 1. However, when there is only one front camera in the optical device 1, a wide-angle camera can be used. When there are two or more front cameras in the optical device 1, one of them can be a telescopic camera as in this embodiment. However, since the focal length is shorter than that of a rear telescopic camera, a conventional camera module without a reflective member can be used instead of a folding camera module.

[0431] Figure 73 This is a block diagram of a lens driving device according to an embodiment of the present invention.

[0432] According to an embodiment of the present invention, the lens driving device 4100 consists of a lens barrel 4120 and a magnet 4110 arranged in the lens barrel 4120, and may include a position measuring unit 4130, a control unit 4150, a coil 4160, and a memory (not shown) for storing control algorithms or calibration information.

[0433] Magnet 4110 can be a magnetic material disposed on a lens barrel (not shown). Magnet 4110 can move with the lens barrel, and the position of the lens barrel can be determined by detecting the position of magnet 4110. The distance that magnet 4110 moves when driven is called the travel distance. One or more lenses can be coupled to the lens barrel, and a first lens group comprising multiple lenses can be coupled, and multiple lens groups can be included. One or more magnets 4110 can be disposed for each lens or lens group to be driven or to detect position. Multiple magnets 4110 can be disposed to drive the lens or detect position in multiple directions. The travel distance of magnet 4110 can be set according to the travel distance to control the position of the lens. Depending on the purpose of driving the lens, magnet 4110 can perform zoom, autofocus (AF), and image stabilization (OIS) functions.

[0434] The magnets of the lens driving device can be divided into: a driving magnet, which drives to move the position of the lens or lens barrel; and a sensing magnet, which measures the position of the position measuring unit 4130, such as a Hall sensor, so as to measure the position of the lens or lens barrel.

[0435] The magnet 4110 according to an embodiment of the present invention can simultaneously function as a driving magnet and a sensing magnet. That is, both the driving magnet and the sensing magnet can be implemented using a single magnet 4110. This reduces the number of magnets and enables product miniaturization. The position measurement unit 4130 can be a Hall sensor. A Hall sensor is a sensor that detects position by sensing changes in magnetism, and the position of the magnet 4110 can be detected by utilizing the changes in magnetism that occur accompanying the movement of the magnet 4110.

[0436] The magnet 4110 may include a first magnetic pole 4111, a gap 4112, and a second magnetic pole 4113. Here, one of the first magnetic pole 4111 and the second magnetic pole 4113 may be an N pole, and the other may be a S pole. The gap 4112 is a neutral region (NZ) and may be a region without polarity. The magnet 4110 is formed by magnetization, wherein the magnetic material is magnetized to have polarity. At this time, when magnetization is performed using a magnetization fixture, the magnet 4110 can be formed by creating a gap without polarity between the N pole and the S pole.

[0437] When forming the gap 4112 of the magnet 4110, the length of the gap is set according to the length of the moving stroke of the magnet 4110. For example... Figure 74 As shown, a gap 4112 is formed between the first magnetic pole 4111 and the second magnetic pole 4113, but the length of the gap 4112 can be set according to the length of the moving stroke of the magnet 4110. Figure 75This is a practical example of a magnet, and a gap 4112 of predetermined length in the longitudinal direction can be confirmed between the first magnetic pole 4111 and the second magnetic pole 4113.

[0438] When the movement of magnet 4110 becomes a long stroke, the linearity may deteriorate due to the characteristics of the magnetic flux of magnet 4110. This affects not only linearity but also hysteresis and resolution. Magnetic flux can be as follows: Figure 76 As shown in the diagram. Here, the graph can be a graph of the signal measured by the position measuring unit that measures the position of the magnet 4110. For example... Figure 76 As shown, depending on the moving position of magnet 4110, it is not linear at all positions, but it has linearity for a predetermined segment 4410, and if it is outside that segment, there is a nonlinear segment. This nonlinear segment can have a cubic function form. Control performance deteriorates when using signals with nonlinear segments. Therefore, in order to use... Figure 76 To measure the position of magnet 4110 using the linearity segment 4410 in the curve graph, it is necessary to form a corresponding long segment. For this purpose, a gap 4112 of predetermined length can be formed in magnet 4110. As the length of gap 4112 increases, the linearity can increase; however, if it is too long, the magnitude of the magnetic flux of magnet 4110 may decrease, and therefore, the driving force may decrease. In other words, to achieve a long stroke of magnet 4110, it is important to form gap 4112, and simultaneously, to form the optimal length of gap 4112 according to the length of the stroke.

[0439] The length of the gap 4112 can be set proportionally to the length of the travel of the magnet 4110. The longer the travel, the longer the length of the gap 4112 can be set.

[0440] At this time, in the moving direction of the magnet 4110, the length of the gap 4112 can be set to 1 / 4 to 3 / 4 of the moving stroke length in the moving direction of the magnet 4110. For example, when the moving stroke length is 3mm, the length of the gap 4112 can be set in the range of 0.75mm to 2.25mm.

[0441] Ideally, the length of the gap 4112 can be set to 1 / 2 of the travel length. For example, when the travel length is 3mm, the length of the gap 4112 can be set to 1.5mm.

[0442] At this point, because tolerances may exist in the manufacturing process of the lens drive device, these tolerances can be taken into account when setting the length of the gap 4112. That is, the length of the gap 4112 can be set within a tolerance range of 1 / 2 of the travel length of the magnet 4110 in the moving direction. Here, when considering tolerances, the manufacturing tolerances of the magnet and the SMT manufacturing tolerances of the printed circuit board (PCB) of the position measuring unit for measuring the position of the magnet 4110 must be taken into account. For example, the tolerance range could be 10%. When considering tolerances, the length L2 of the gap 4112 can be set as follows:

[0443] [Equation 1]

[0444] L2=L1 / 2±E

[0445] Here, L1 is the travel length of magnet 4110, and E can be 10% as a tolerance range. If 10% is used as the tolerance range, the length of gap 4112 can be set to 0.45 to 0.55 times the travel length. For example, when the travel length is 3mm, the length of gap 4112 can be set in the range of 1.35mm to 1.65mm. Of course, the tolerance range can be set by the user or can be set differently considering the tolerance of the magnet or the tolerance of the Hall sensor.

[0446] Figure 77 This is a block diagram of a camera module according to an embodiment of the present invention; and Figure 78 This is a block diagram of a camera module according to another embodiment of the present invention. Because the detailed description of each construction of the camera module according to an embodiment of the present invention corresponds to the respective construction... Figures 73 to 76 The detailed description of each component of the lens driving device is omitted, so repeated descriptions will be omitted.

[0447] A camera module according to an embodiment of the present invention includes: a plurality of lens groups 4140, including at least one fixedly positioned lens group and at least one movable lens group; a lens barrel 4120 in which the plurality of lens groups 4140 are arranged; a magnet 4110 arranged in the lens barrel 4120 and including a first magnetic pole 4111, a gap 4112 and a second magnetic pole 4113; and a position measuring unit 4130 for measuring the position of the magnet 4110. Here, the length of the gap 4112 of the magnet 4110 can be set according to the length of the travel distance of the magnet 4110.

[0448] The plurality of lens groups 4140 may include a first lens group, which is at least one lens group whose position is fixed; and a second lens group, which is at least one movable lens group. Additionally, the movable lens group may also include a third lens group (not shown) to an nth lens group, an OIS lens, a right-angle prism, a filter for preventing foreign objects, an infrared (IR) filter, etc. In this case, the first, second, and third lens groups may be arranged sequentially. The OIS lens or right-angle prism may be positioned at the front end of the first lens group. Each lens group may include multiple lenses. Depending on the distance between two lens groups in the plurality of lens groups 4140, continuous magnification adjustment is possible. For example, the magnification can be continuously adjusted based on the movement of the second lens group, and the focus can be adjusted based on the movement of the third lens group. In this case, the amount of movement of the third lens group may be greater than the amount of movement of the second lens group. Here, continuously increasing or decreasing the magnification may mean that the magnification increases or decreases linearly, rather than increasing or decreasing discontinuously digitally. By using multiple lens groups, continuous magnification adjustment is possible, high resolution can be maintained even at high magnification, and a compact zoom lens can be achieved.

[0449] The magnet 4110 consists of a first magnetic pole 4111, a gap 4112, and a second magnetic pole 4113, and the length of the gap 4112 can be set proportionally to the travel length of the magnet 4110. In this case, the length of the gap 4112 in the moving direction of the magnet 4110 can be set within a tolerance range of 1 / 2 of the travel length, and this tolerance range can be 10%.

[0450] The position measuring unit 4130 is arranged to face the magnet 4110 and detects magnetic changes caused by movement of the magnet 4110 to measure the position of the magnet 4110. The position measuring unit 4130 may include a first position measuring unit 4131 and a second position measuring unit 4132, such as... Figure 78As shown, the control unit 4150 can be connected to position measurement units 4131 and 4132 respectively to receive signals, thereby detecting the position of magnet 4110. The control unit 4150 can be a driver IC. The control unit 4150 may include at least one processor that processes control algorithms stored in memory to drive the lens driving device. Here, the control algorithm is an algorithm for detecting position and posture differences using a Hall sensor or gyroscope sensor as a position measurement component, and driving the actuator based on this. The control unit 4150 can drive coil 4140 using the corresponding algorithm to perform zoom, autofocus (AF), or image stabilization (OIS) functions. When driven by applying a control signal to coil 4140, the position of magnet 4110 can be adjusted by the magnetism between coil 4140 and magnet 4110. Thus, zoom, autofocus, and image stabilization functions can be performed.

[0451] The camera module according to an embodiment of the present invention can be as follows: Figure 79 The implementation is shown in the diagram. A lens barrel 4120, a magnet 4110, and a position measuring unit 4130 can be formed. Multiple lens groups are formed in the lens barrel 4120. The magnet 4110 is arranged and simultaneously functions as a driving magnet and a sensing magnet. The position measuring unit 4130 faces the magnet 4110 and is used to measure the position of the magnet 4110. The magnet 4110 has a first magnetic pole, a gap, and a second magnetic pole. A long stroke can be achieved when the length of the gap is set according to the length of the movement stroke of the magnet 4110.

[0452] Embodiments of the present invention have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that the invention can be implemented in other specific forms without altering the spirit or essential features. Therefore, it should be understood that the above embodiments are illustrative in all respects and not restrictive.

Claims

1. A lens driving device, comprising: Fixing part; A first movable part and a second movable part are arranged in the fixed part; A first driving magnet is disposed on the first moving part; A second driving magnet is disposed on the second moving part; A first coil is arranged on the fixed part and at a position corresponding to the first driving magnet; The second coil is arranged on the fixed part and at a position corresponding to the second driving magnet; as well as A first Hall sensor and a second Hall sensor are arranged in the cavity of the first coil and configured to detect the first driving magnet. In the optical axis direction, the center of the first coil is positioned in front of the center of the second coil. In this configuration, a portion of the first coil overlaps with the second coil in a first direction perpendicular to the optical axis. The first driving magnet includes: a first magnet portion and a second magnet portion, both having N and S poles; and a neutral portion or gap disposed between the first magnet portion and the second magnet portion. In the optical axis direction, the size of the neutral portion or gap is smaller than the size of the cavity of the first coil, and larger than the distance between the first Hall sensor and the second Hall sensor.

2. The lens driving device according to claim 1, wherein, The first coil includes a portion that does not overlap with the second coil in the first direction.

3. The lens driving device according to claim 1, wherein, In a second direction perpendicular to both the optical axis and the first direction, the center of the first coil is positioned at a height corresponding to the center of the second coil.

4. The lens driving device according to claim 1, wherein, The fixing part includes a housing and a first lens, the first lens being disposed on the housing. The first movable part includes: a first retaining member disposed in the housing; and a second lens disposed on the first retaining member. The second moving part includes: a second retaining member disposed within the housing; and a third lens disposed on the second retaining member. The second lens is positioned between the first lens and the third lens.

5. The lens driving device according to claim 4, wherein, The first coil is formed to have the same size as the second coil and is arranged closer to the first lens than the second coil.

6. The lens driving device according to claim 1, wherein, A portion of the first driving magnet overlaps with the second driving magnet in the first direction.

7. The lens driving device according to claim 4, wherein, The first driving magnet is formed to have the same size as the second driving magnet and is arranged to be closer to the first lens than the second driving magnet.

8. The lens driving device according to claim 1, wherein, The first driving magnet includes a portion that does not overlap with the second driving magnet in the first direction.

9. The lens driving device according to claim 1, in, The first coil includes a first portion facing the first magnet portion and a second portion facing the second magnet portion, and Wherein, the first portion of the first coil does not overlap with the second magnet portion in the first direction, and the second portion of the first coil does not overlap with the first magnet portion in the first direction.

10. The lens driving device according to claim 3, wherein, The fixing part includes a first magnetic yoke, which is made of magnetic material. The first driving magnet is arranged such that gravity interacts with the first magnetic yoke. Wherein, in the second direction perpendicular to the optical axis direction and the first direction, the width of the first magnetic yoke is formed to be greater than the width of the first surface of the first driving magnet facing the first surface of the first magnetic yoke.

11. The lens driving device according to claim 3, comprising a second magnetic yoke disposed between the first driving magnet and the first moving part. in, The second magnetic yoke is configured to surround at least three surfaces of the first driving magnet.

12. The lens driving device according to claim 1, wherein, The first moving part is configured to move when current is applied to the first coil to perform a zoom function, and The second moving part is configured to move when current is applied to the second coil to perform an autofocus function.

13. A lens driving device, comprising: The fixing part includes a first lens; A first movable part is arranged in the fixed part and includes a second lens; The second movable part is arranged in the fixed part and includes a third lens; A first driving magnet is disposed on the first moving part; A second driving magnet is disposed on the second moving part; A first coil is arranged at a position corresponding to the first driving magnet; The second coil is arranged at a position corresponding to the second driving magnet; as well as A first Hall sensor and a second Hall sensor are arranged in the cavity of the first coil and configured to detect the first driving magnet. In this configuration, the first driving magnet is positioned closer to the first lens than the second driving magnet. In this configuration, a portion of the first driving magnet overlaps with the second driving magnet in a first direction perpendicular to the optical axis. The first driving magnet includes: a first magnet portion and a second magnet portion, both having N and S poles; and a neutral portion or gap disposed between the first magnet portion and the second magnet portion. In the optical axis direction, the size of the neutral portion or gap is smaller than the size of the cavity of the first coil, and larger than the distance between the first Hall sensor and the second Hall sensor.

14. The lens driving device according to claim 13, wherein, The first driving magnet includes a portion that does not overlap with the second driving magnet in the first direction.

15. The lens driving device according to claim 13, wherein, The first coil is positioned closer to the first lens than the second coil.

16. The lens driving device according to claim 13, wherein, The first driving magnet is formed to have the same dimensions as the second driving magnet.

17. A camera device, comprising: Printed circuit boards; An image sensor, the image sensor being disposed on the printed circuit board; Reflector component driving device; as well as The lens driving device according to any one of claims 1-16 is arranged between the image sensor and the reflective member driving device.

18. The camera device according to claim 17, comprising: A driver IC, which is disposed on the printed circuit board and electrically connected to the first coil and the second coil; A substrate that electrically connects the printed circuit board and the reflective member driving device; as well as A temperature sensor is disposed on the substrate.

19. The camera device according to claim 18, wherein, The temperature sensor is arranged adjacent to either the first coil or the second coil.

20. An optical device, comprising: main body; The camera device according to claim 17 is arranged on the main body; as well as A display, arranged in the main body, outputs at least one of video and images captured by the camera device.

Images