Camera Module

Abstract

In an embodiment, a camera module is disclosed, which includes: a housing; a lens module connected to the housing; a bracket arranged in the housing; an elastic member connecting the housing and the bracket; a magnet part and an optical member connected to the bracket; and a coil part facing the magnet part, wherein the bracket includes a first protrusion extending in the optical axis direction so as to be connected to the elastic member, and the elastic member includes a first connecting part connected to one surface of the first protrusion; the first protrusion includes a guide protrusion protruding from one surface of the first protrusion in the optical axis direction, wherein the guide protrusion is arranged on the outside of the elastic member and has a shape corresponding to at least a portion of the outer periphery of the first connecting part.

Description

Technical Field

[0001] Embodiments relate to a camera module. Background Art

[0002] Three-dimensional content is being applied in many fields such as education, manufacturing and autonomous driving as well as games and culture. A depth map is required to acquire three-dimensional content. A depth map is information indicating a spatial distance and indicates perspective information of another point relative to a point in a two-dimensional image.

[0003] Recently, time of flight (ToF) is attracting attention as a method for acquiring depth maps. According to the ToF method, the distance to an object is calculated by measuring the flight time, that is, the time of light emission and reflection. The biggest advantage of the ToF method is that the ToF method provides distance information in three-dimensional space in real time and quickly. In addition, users can obtain accurate distance information without adopting a separate algorithm or hardware correction. In addition, accurate depth maps can be obtained even when measuring very close objects or measuring moving objects.

[0004] However, with the current ToF method, there is a problem that information obtainable per frame (ie, resolution) is low.

[0005] The number of pixels of the sensor may be increased to improve the resolution, but in this case, there is a problem that the volume and manufacturing cost of the camera module are greatly increased. Summary of the invention

[0006] [Technical issues]

[0007] Embodiments are directed to providing a camera module that can be used in a ToF method to increase resolution.

[0008] Furthermore, embodiments are directed to providing a camera module capable of performing a super-resolution (SR) technology.

[0009] The purpose of the embodiment is not limited thereto, and will also include the technical solutions described below or purposes or effects that can be identified from the embodiment.

[0010] [Technical solution]

[0011] According to an embodiment, a camera module includes: a housing; a lens module connected to the housing; a bracket disposed in the housing; an elastic member configured to connect the housing and the bracket; a magnet portion and an optical member connected to the bracket; and a coil portion facing the magnet portion, wherein the bracket may include a first protrusion extending in an optical axis direction and connected to the elastic member, the elastic member may include a first connecting portion connected to a surface of the first protrusion, the first protrusion may include a guide protrusion protruding from a surface of the first protrusion in the optical axis direction, the guide protrusion may be disposed more outward than the elastic member, and the guide protrusion may include a shape corresponding to at least a portion of an outer periphery of the first connecting portion.

[0012] The bracket may include: a base disposed below the first protrusion; and a side wall disposed between the base and the first protrusion.

[0013] The camera module may further include a cover disposed on the housing, and the cover includes an upper plate and a side plate extending from the upper plate, wherein, in an initial state where current is not applied to the coil part, the first protrusion may be spaced apart from the upper plate by a first distance, and the first distance may satisfy Equation 1 below.

[0014] [Equation 1]

[0015] L×tan(0.75×θ)≤first distance≤L×tan(1.25×θ)

[0016] (where L refers to the maximum length of the base, and θ refers to the maximum tilt angle of the bracket in the diagonal direction).

[0017] The first protrusion may further include a protrusion extending in the optical axis direction, and the guide protrusion may be disposed more outward than the protrusion.

[0018] The first coupling portion may include a hole through which the protrusion passes.

[0019] The protrusion may include a first protrusion and a second protrusion, and the first protrusion and the second protrusion may be positioned in a diagonal direction.

[0020] The housing may include an inner portion to which the lens module is coupled, an outer portion to which the coil portion is coupled, and a connection portion configured to connect the inner portion and the outer portion.

[0021] The outer portion may include a housing protrusion protruding upward, and the elastic member may include a second coupling portion including a hole through which the housing protrusion passes.

[0022] The first protrusion may be formed on an upper portion of the side wall, the base may include a base groove provided on a lower surface, and the optical member may be provided in the base groove.

[0023] The base groove may include a coupling groove formed at a corner.

[0024] The camera module may further include an adhesive member positioned in the coupling groove to couple the base and the optical member.

[0025] The magnet portion may include a first magnet, a second magnet disposed opposite to the first magnet, a third magnet, and a fourth magnet disposed opposite to the third magnet, and the coil portion may include a first coil facing the first magnet, a second coil facing the second magnet, a third coil facing the third magnet, and a fourth coil facing the fourth magnet.

[0026] The first coil and the third coil may have currents applied in different directions, the second coil and the fourth coil may have currents applied in different directions, and the optical member may be tilted in a diagonal direction.

[0027] Current may be applied to two coils facing each other among the first coil, the second coil, the third coil, and the fourth coil.

[0028] According to another embodiment, a camera module includes: a housing; a lens module connected to the housing; a bracket arranged between the housing and the lens module; an elastic member configured to connect the housing and the bracket; a magnet part and an optical member connected to the bracket; and a coil part facing the magnet part, wherein the bracket may include a first protrusion extending in the optical axis direction and connected to the elastic member, and the bracket may include a second protrusion protruding downward.

[0029] The bracket may include a base disposed between the first protrusion and the second protrusion, and the second protrusion may be disposed at a corner of the base.

[0030] The base may include a base groove disposed on the lower surface.

[0031] The base may further include a coupling groove provided at a lower corner thereof, and the optical member may be provided in the base groove and coupled to the base by an adhesive member.

[0032] According to another embodiment, a camera module includes: a housing; a lens module connected to the housing; a bracket disposed in the housing and the lens module; an elastic member configured to connect the housing and the bracket; a magnet portion and an optical member connected to the bracket; and a coil portion facing the magnet portion, wherein the housing may include a housing protrusion disposed at an outer portion and protruding in an optical axis direction, and a guide portion disposed more outward than the elastic member and protruding in the optical axis direction, the elastic member may include a second coupling portion coupled to the housing protrusion, and the guide portion may include a shape corresponding to at least a portion of an outer periphery of the second coupling portion.

[0033] The shell may include an inner portion connected to the lens module, an outer portion connected to the coil portion, and a connecting portion configured to connect the inner portion and the outer portion, and may also include a shell protrusion protruding upward from the outer portion, the guide portion may be arranged on the outer portion and further outward than the shell protrusion, and the elastic member may include a second connecting portion including a hole through which the shell protrusion passes.

[0034] According to an embodiment, a ToF camera device includes: a light emitting part configured to emit light; and a light receiving part configured to receive light reflected from an object, wherein the light receiving part may include: a housing; a lens module connected to the housing; a bracket arranged in the housing; an elastic member configured to connect the housing and the bracket; a magnet part and an optical member connected to the bracket; and a coil part facing the magnet part, wherein the bracket may include a first protrusion extending in the optical axis direction and connected to the elastic member, the elastic member may include a first connecting part connected to one surface of the first protrusion, the first protrusion may include a guide protrusion protruding from one surface of the first protrusion in the optical axis direction, the guide protrusion may be arranged to be more outward than the elastic member, and the guide protrusion may include a shape corresponding to at least a portion of the outer periphery of the first connecting part.

[0035] [Beneficial Effects]

[0036] According to the embodiment, a depth map with high resolution can be acquired even without significantly increasing the number of pixels of the sensor.

[0037] Furthermore, a high-resolution image may be acquired from a plurality of low-resolution images obtained by the camera module according to the embodiment through the SR technology.

[0038] Various beneficial advantages and effects of the present invention are not limited to the above description and will be more easily understood in the course of describing specific embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a perspective view of a camera module according to an embodiment.

[0040] Figure 2 is an exploded perspective view of a camera module according to an embodiment.

[0041] Figure 3a is along Figure 1 A cross-sectional view taken along line AA'.

[0042] Figure 3b is along Figure 1 A cross-sectional view taken along line BB'.

[0043] Figure 3c is along Figure 1A cross-sectional view taken along line CC'.

[0044] Figure 3d is along Figure 1 A cross-sectional view taken along line DD'.

[0045] Figure 4 is a perspective view of some components of a light receiving portion of a camera module according to an embodiment.

[0046] Figure 5 is a perspective view of a housing of a camera module according to an embodiment.

[0047] Figure 6 is a perspective view of some components of a camera module according to an embodiment.

[0048] Figure 7 is a perspective view of a substrate and a coil of a camera module according to an embodiment.

[0049] Figure 8 2 is a view illustrating coupling between a coil and a substrate of a camera module according to various embodiments.

[0050] Fig. 9 is an exploded perspective view showing a bracket, a magnet, and an optical member of a camera module according to an embodiment.

[0051] Fig.10 is a perspective view showing a bracket, a magnet, and an optical member of a camera module according to an embodiment.

[0052] Fig.11 is from Fig.10 Perspective views from different angles.

[0053] Fig.12 is a top view of a bracket, a magnet, and an optical member of a camera module according to an embodiment.

[0054] Fig.13 is a diagram for describing the Lorentz force between a magnet and a coil in the embodiment.

[0055] Fig.14 2 is a view for describing diagonal tilt control of an optical member in the embodiment.

[0056] Fig.15 is a perspective view of a portion of a camera module including an elastic member according to an embodiment.

[0057] Fig.16 is a top plan view of a portion of a camera module including an elastic member according to an embodiment.

[0058] Fig.17 is a view of a portion of a camera module including an elastic member according to an embodiment of a modified example.

[0059] Fig.18 is a perspective view of a camera module according to an embodiment.

[0060] Fig.19 is along Fig.18 A cross-sectional view taken along line EE'.

[0061] Fig. 20 It is along Fig.18 A cross-sectional view taken along line FF'.

[0062] Fig.21 It is along Fig.18 A cross-sectional view taken along line GG'.

[0063] Fig. 22 is a view for describing driving of a camera according to an embodiment.

[0064] Fig.23 is a view for describing a super-resolution (SR) technique according to an embodiment of the present invention.

[0065] Fig.24 is conceptually and sequentially shown from Fig.23 Concept map of multiple images obtained at each step in .

[0066] Fig.25 2 are views sequentially showing images of first to fourth frames acquired for the SR technique from a camera module according to an embodiment.

[0067] Fig.26 is a view used to describe the SR image.

[0068] Fig. 27 is a perspective view of a camera module according to an embodiment.

[0069] Fig.28 It is along Fig. 27 A cross-sectional view taken along line HH' in FIG.

[0070] Fig.29 It is along Fig. 27 A cross-sectional view taken along line II'.

[0071] Fig.30 is along Fig. 27 Cross-sectional view taken along line JJ'.

[0072] Fig.31 is a view for describing driving of a camera module according to another embodiment.

[0073] Fig.32 is a view showing a light path moving process according to another embodiment.

[0074] Fig.33 is a conceptual diagram conceptually and sequentially illustrating a plurality of images acquired for the SR technology from a camera module according to another embodiment.

[0075] Fig.34 and Fig.35 2 is a view showing a tilt application example of a camera module according to an embodiment. DETAILED DESCRIPTION

[0076] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0077] However, the technical spirit of the present invention is not limited to some of the described embodiments, but can be implemented in various different forms, and one or more of these components can be used by selectively connecting or replacing between the embodiments without departing from the scope of the technical spirit of the present invention.

[0078] In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that can be generally understood by technicians in the field to which the present invention belongs, unless specifically defined and clearly described, and the meanings of commonly used terms (such as terms defined in dictionaries) may be interpreted in consideration of the contextual meanings of the relevant technology.

[0079] Furthermore, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0080] In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when described as "at least one (or one or more) of A and B, C", it may include one or more of all possible combinations of A, B and C.

[0081] Furthermore, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

[0082] These terms are intended only to distinguish the component from other components, and the nature, order or sequence of the corresponding components are not limited by these terms.

[0083] In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, this may include not only the case where the component is directly connected, coupled or connected to another component, but also the case where the component is “connected”, “coupled” or “connected” to another component with other components interposed therebetween.

[0084] Furthermore, when described as being formed or disposed “on (above) or below (below)” each component, the above (above) or below (below) includes not only a case where two components are in direct contact with each other, but also a case where one or more other components are formed or disposed between the two components. Furthermore, when expressed as “on (above) or below (below)”, this may also include the meaning of not only an upward direction but also a downward direction relative to one component.

[0085] Hereinafter, an optical device according to this embodiment will be described.

[0086] The optical device may include any one of a cellular phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and a navigation device. However, the type of the optical device is not limited thereto, and any device for capturing an image or a photo may be included in the optical device.

[0087] The optical device may include a main body. The main body may have a bar shape. Alternatively, the main body may have various structures, such as a sliding type, a folding type, a swing type, and a swirl type, in which two or more sub-bodies are connected to be able to move relative to each other. The main body may include a shell (housing, housing, cover) forming an external appearance. For example, the main body may include a front shell and a rear shell. Various electronic components of the optical device may be embedded in the space formed between the front shell and the rear shell.

[0088] The optical device may include a display. The display may be disposed on a surface of a main body of the optical device. The display may output an image. The display may output an image captured by a camera.

[0089] The optical device may include a camera. The camera may include a time-of-flight (ToF) camera device. The ToF camera device may be disposed on the front surface of the main body of the optical device. In this case, the ToF camera device may be used for various types of biometrics, such as user facial recognition and iris recognition for secure authentication of the optical device.

[0090] Hereinafter, the configuration of a ToF camera device according to an embodiment will be described with reference to the accompanying drawings.

[0091] Figure 1 is a perspective view of a camera module according to an embodiment, Figure 2 is an exploded perspective view of a camera module according to an embodiment, Figure 3a It is along Figure 1 The cross-sectional view taken along line AA' in FIG. Figure 3b It is along Figure 1 The cross-sectional view taken along line BB' in Figure 3c It is along Figure 1A cross-sectional view taken along line CC' in FIG. Figure 3d It is along Figure 1 A cross-sectional view taken along line DD'.

[0092] The ToF camera device may include a camera device. The ToF camera device may include a camera module.

[0093] refer to Figures 1 to 3d , the camera module may include a light emitting part 1. The light emitting part 1 may be a light emitting module, a light emitting unit, a light emitting assembly, or a light emitting device. The light emitting part 1 may generate an output light signal, and then irradiate the output light signal to an object. At this time, the light emitting part 1 may generate and output an output light signal in the form of a pulse wave or a continuous wave. The continuous wave may be in the form of a sine wave or a square wave. For example, by generating an output light signal in the form of a pulse wave or a continuous wave, the ToF camera device may detect a phase difference between an output light signal output from the light emitting part 1 and an input light reflected from an object and then input to a light receiving part 2 of the ToF camera device. In the present specification, output light may refer to light output from the light emitting part 1 and incident on an object, and input light may refer to light output from the light emitting part 1 to reach an object, reflected from an object, and then input to a ToF camera device. From the perspective of the object, the output light may be incident light, and the input light may be reflected light.

[0094] The light emitting part 1 irradiates the generated output light signal to the object within a predetermined integration time. Here, the integration time means one frame time. When multiple frames are generated, the set integration time is repeated. For example, when the ToF camera device captures an object at 20FPS, the integration time is 1 / 20 [second]. In addition, when 100 frames are generated, the integration time can be repeated 100 times.

[0095] In addition, the light emitting part 1 can generate a plurality of output optical signals with different frequencies. The light emitting part 1 can sequentially and repeatedly generate the plurality of output optical signals with different frequencies. Alternatively, the light emitting part 1 can also generate the plurality of output optical signals with different frequencies simultaneously.

[0096] The light emitting part 1 may include a light source 40. The light source 40 may generate light. The light source 40 may output light. The light source 40 may irradiate light. The light generated by the light source 40 may be an infrared ray having a wavelength of 770nm to 3000nm. Alternatively, the light generated by the light source 40 may be a visible ray having a wavelength of 380nm to 770nm. The light source 40 may include all the various elements configured to generate and output light. For example, the light source 40 may include a light emitting diode (LED). In addition, the light source 40 may include a plurality of light emitting diodes having a form arranged according to a constant pattern. In addition, the light source 40 may include an organic light emitting diode (OLED) or a laser diode (LD).

[0097] The light emitting part 1 may include a light modulating part configured to modulate light. The light source 40 may generate an output light signal in the form of a pulse wave or a continuous wave by repeatedly turning on / off at specific time intervals. The specific time interval may be the frequency of the output light signal. The turning on / off of the light source 40 may be controlled by the light modulating part. The light modulating part may control the turning on / off of the light source 40 to control the light source 40 to generate an output light signal in the form of a continuous wave or a pulse wave. The light modulating part may control the light source 40 to generate an output light signal in the form of a continuous wave or a pulse wave by frequency modulation, pulse modulation, etc.

[0098] The light emitting part 1 may include a diffuser 50. The diffuser 50 may be a diffusion lens. The diffuser 50 may be disposed in front of the light source 40. The light emitted from the light source 40 may pass through the diffuser 50 and may be incident on an object. The diffuser 50 may change the path of the light emitted from the light source 40. The diffuser 50 may gather the light emitted from the light source 40.

[0099] The light emitting part 1 may include a cover. The cover may be provided to cover the light source 40. The cover may be provided on the main substrate 4. The cover may include an upper plate including a hole and a side plate extending from the upper plate.

[0100] The camera module 10 may include a light receiving part 2. The light receiving part 2 may be a light receiving module, a light receiving unit, a light receiving assembly or a light receiving device, and may be a component of the camera module. The light receiving part 2 may receive light emitted from the light emitting part 1 and reflected from an object, and convert the received light into an electrical signal. The light receiving part 2 may generate input light corresponding to an output light signal output from the light emitting part 1. The light receiving part 2 may be arranged side by side with the light emitting part 1. The light receiving part 2 may be arranged next to the light emitting part 1. The light receiving part 2 may be arranged in the same direction as the light emitting part 1. According to this configuration, the reception efficiency of the input light in the light receiving part 2 may be improved.

[0101] Specifically, the light receiving part 2 may include a housing 100, a lens module 200, a substrate 300, a coil part 400, a bracket 500, a magnet part 600, an elastic member 700, an optical member 800, a cover 900, and an image sensor IS.

[0102] First, the housing 100 may be positioned inside the cover 900 to be described below. The housing 100 may be coupled to the lens module 200, the substrate 300, the coil part 400, and the elastic member 700, which will be described below. A detailed description thereof will be given below.

[0103] In an embodiment, the housing 100 may include an inner portion 110, an outer portion 120, and a connection portion 130 provided between the inner portion 110 and the outer portion 120. A detailed description thereof will be given below.

[0104] The lens module 200 may pass light reflected from an object. The optical axis of the lens module 200 and the optical axis of the image sensor IS may be aligned. In addition, the lens module 200 may be coupled to the housing 100. In addition, the lens module 200 may be fixed to the housing 100. The lens module 200 may be composed of a plurality of optical members, but is not limited thereto.

[0105] The lens module 200 may include a lens housing portion 210, an optical member is disposed on the lens housing portion 210, and a lens cover 220 configured to surround the lens housing portion 210. The lens cover 220 may be in contact with the housing 100 and may be moved up and down by a voice coil motor, etc., as will be described below. Therefore, the focus of light passing through the lens module 200 may be changed.

[0106] The substrate 300 may be coupled to the housing 100. The substrate 300 may be coupled to a substrate protrusion formed on a side surface of the housing 100. In addition, the substrate 300 may further include a terminal portion 320. The terminal portion 320 is a portion extending downward from the body portion 310 of the substrate 300 and may be electrically connected to the main substrate 4.

[0107] The coil part 400 may include a plurality of coils and may be located on the side surface of the housing 100. The coil part 400 may be located in each housing hole formed on the side surface of the housing 100. The coil part 400 may be electrically connected to the substrate 300. For example, the coil part 400 may be connected to the substrate 300 by a wire or the like. In addition, since the substrate 300 is coupled to the housing 100 as described above, the coil part 400 may also be placed in the housing hole formed on the side surface of the housing 100 and coupled to the housing. A detailed description thereof will be given below.

[0108] The bracket 500 may be accommodated in the housing 100. In addition, the bracket 500 may be coupled to the optical member 800 and the magnet portion 600, which will be described below. In an embodiment, the bracket 500 may be tilted. The bracket 500 may include a base 510, a side wall 520, and a second protrusion 530. A detailed description thereof will be given below.

[0109] The magnet part 600 may be composed of a plurality of magnets. The magnet part 600 may be placed in a bracket groove formed on the side surface of the bracket 500. In addition, the magnet part 600 may be positioned to face the coil part 400. According to this configuration, a Lorentz force may be generated, and the magnet part 600, the bracket 500 coupled to the magnet part 600, and the optical member 800 coupled to the bracket 500 may be tilted by the Lorentz force. A detailed description thereof will be given below.

[0110] The elastic member 700 may be provided on the housing 100 and the bracket 500. The elastic member 700 may be located between the cover 900 and the bracket 500. A detailed description thereof will be given below.

[0111] The optical member 800 may be coupled to the bracket 500. The optical member 800 may be disposed between the lens module 200 and the image sensor IS. The optical member 800 may be disposed on an optical path between the object and the image sensor IS. The optical member 800 may filter light having a predetermined wavelength range. The optical member 800 may transmit light of a specific wavelength. In other words, the optical member 800 may reflect or absorb, thereby blocking light other than a specific wavelength. For example, the optical member 800 may allow infrared rays to pass through and block light of wavelengths other than infrared rays. Alternatively, the optical member 800 may allow visible rays to pass through and block light of wavelengths other than visible rays.

[0112] In addition, the optical member 800 can move. The optical member 800 can move integrally with the bracket 500. In an embodiment, the optical member 800 can be tilted. The optical member 800 can be tilted to adjust the light path. When the optical member 800 is tilted, the path of the light incident on the image sensor IS can be changed. The optical member 800 can change the field of view (FOV) angle of the incident light or the direction of its FOV.

[0113] The optical member 800 may be a filter. For example, the optical member 800 may be an infrared bandpass filter. Therefore, the optical member 800 may only allow infrared rays to pass. Alternatively, the optical member may be a separate focus fixed lens or a variable focus lens (eg, a liquid lens) separated from the lens module.

[0114] Furthermore, in this embodiment, when the optical member 800 is tilted so as to be skewed, the path along which light enters may be changed, thereby achieving high-resolution time of flight (ToF).

[0115] The cover 900 may be a bracket. The cover 900 may include a cover can. The cover 900 may be disposed to surround the housing 100. The cover 900 may be coupled to the housing 100. The cover 900 may accommodate the housing 100 therein. The cover 900 may be located at the outermost side of the camera module. The cover 900 may have a hexahedral shape with an open lower surface.

[0116] In addition, the cover 900 may be a non-magnetic substance. In addition, the cover 900 may be made of metal. In addition, the cover 900 may be formed of a metal plate.

[0117] The cover 900 can be connected to the grounding portion of the main substrate 4. Therefore, the cover 900 can be grounded. In addition, the cover 900 can block electromagnetic interference (EMI). At this time, the cover 900 can be called an "EMI shielding can". The cover 900 is a final assembled component and can protect the product from external impact. The cover 900 can be made of a material with a small thickness and high rigidity.

[0118] The image sensor IS may detect input light. In addition, the image sensor IS may detect input light and output the input light as an electrical signal. In an embodiment, the image sensor IS may detect light having a wavelength corresponding to the wavelength of light output from the light source 40. For example, the image sensor IS may detect infrared rays. Alternatively, the image sensor IS may detect visible rays. The image sensor IS may include various image sensors configured to detect light.

[0119] The image sensor IS may include: a pixel array configured to receive light passing through the lens module 200 to convert the received light into an electrical signal corresponding to the light; a driving circuit configured to drive a plurality of pixels included in the pixel array; and a readout circuit configured to read an analog pixel signal of each pixel. By comparing the analog pixel signal with a reference signal, the readout circuit may generate a digital pixel signal (or image signal) by analog-to-digital conversion. Here, the digital pixel signal of each pixel included in the pixel array constitutes an image signal, and since the image signal is transmitted in frames, it may be defined as an image frame. In other words, the image sensor may output a plurality of image frames.

[0120] In addition, the light receiving part 2 may further include a position sensor 450. The position sensor 450 may be used for feedback control. The position sensor 450 may include a Hall sensor or a Hall IC. The position sensor 450 may detect the magnet part 600. The position sensor 450 may detect the magnetic force of the magnet part 600. The position sensor 450 may be disposed between the coil parts 400. In addition, the position sensor 450 may be disposed on the inner surface of the substrate 300. However, the present invention is not limited thereto, and the position sensor 450 may also be removed to reduce the complexity of the camera module.

[0121] The position sensor 450 may include a plurality of position sensors. The position sensor 450 may include two sensors. The position sensor 450 may include a first position sensor 451 and a second position sensor 452. The first position sensor 451 and the second position sensor 452 may be arranged so that the pointing directions are perpendicular to each other. Therefore, the first position sensor 451 and the second position sensor 452 may detect the X-axis and Y-axis movement of the magnet part 600 in the horizontal direction. In addition, in this embodiment, an additional sensor configured to detect the movement of the magnet part 600 in the Z-axis direction (vertical direction or optical axis direction) may be further provided. In this specification, the Z-axis direction is the optical axis direction or the vertical direction as the third direction. In addition, the X-axis direction is a direction perpendicular to the Z-axis direction, and in an embodiment, is a direction from the light emitting part toward the light receiving part. In addition, the Y-axis direction is a direction perpendicular to the X-axis direction and the Z-axis direction. Based on this, a description will be given below.

[0122] The light receiving part 2 may further include an image synthesis part. The image synthesis part may include an image processor configured to receive an image signal from the image sensor IS and process the image signal (e.g., interpolation or frame synthesis). Specifically, the image synthesis part may synthesize the image signal into an image signal of one frame (high resolution) using image signals of multiple frames (low resolution). In other words, the image synthesis part may synthesize multiple image frames included in the image signal received from the image sensor IS, and generate a synthesis result as a synthetic image. The synthetic image generated by the image synthesis part may have a higher resolution than the resolution of the multiple image frames output from the image sensor IS. In other words, the image synthesis part may generate a high-resolution image by super-resolution (SR) technology. The multiple image frames may include image frames generated by changing into different optical paths by the movement of the optical member 800. The image synthesis part may be located inside or outside the light receiving part 2.

[0123] The camera module 10 may include a main substrate 4 (printed circuit board (PCB)). The light emitting part 1 and the light receiving part 2 may be provided on the main substrate 4. The main substrate 4 may be electrically connected to the light emitting part 1 and the light receiving part 2.

[0124] In addition, the camera module may include a connection portion 3. The connection portion 3 may be electrically connected to the main substrate 4. The connection portion 3 may be connected to the configuration of the optical device. The connection portion 3 may include a connector 7 connected to the configuration of the optical device. The connection portion 3 may include an extension substrate 5, and the connector 7 is provided on the extension substrate 5 and connected to the connection substrate 6. The extension substrate 5 may be a PCB, but is not limited thereto.

[0125] The camera module may include a connection substrate 6. The connection substrate 6 may connect the main substrate 4 and the extension substrate 5 of the connection portion 3. The connection substrate 6 may have flexibility. The connection substrate 6 may be a flexible printed circuit board (flexible PCB (FPCB)).

[0126] Furthermore, the main substrate 4 , the connection substrate 6 , and the extension substrate 5 may be formed integrally or separately.

[0127] The camera module may include a reinforcing plate 8. The reinforcing plate 8 may include a reinforcing member. The reinforcing plate 8 may be disposed on the lower surface of the main substrate 4. The reinforcing plate 8 may be formed of stainless steel.

[0128] The camera module (or light receiving part) may include a lens driving device. The camera module may include a voice coil motor (VCM). The camera module may include a lens driving motor. The camera module may include a lens driving actuator. According to this configuration, as described above, the camera module according to the embodiment may perform three-dimensional tilting on the optical member 800. In addition, when the optical member 800 is tilted, the optical path of the input light passing through the optical member 800 may be repeatedly moved according to a predetermined rule.

[0129] Figure 4 is a perspective view of some components of a light receiving portion of a camera module according to an embodiment, Figure 5 is a perspective view of a housing of a camera module according to an embodiment, and Figure 6 is a perspective view of some components of a camera module according to an embodiment.

[0130] refer to Figures 4 to 6 In this embodiment, the cover 900 may include an upper plate 910 and a side plate 920. Specifically, the cover 900 may include an upper plate 910 including a cover hole 911 and a side plate 920 extending downward from the periphery or edge of the upper plate 910.

[0131] The housing 100, the bracket 500, etc. may be located inside the upper plate 910. In addition, the side plate 920 may be located on the side surface of the housing 100. The first step portion 124 of the housing 100 may be located at the lower end of the side plate 920.

[0132] In addition, the inner surface of the side plate 920 may be coupled to the housing 100. An adhesive member (not shown) may be provided between the inner surface of the side plate 920 and the housing 100. Thus, the side plate 920 may be fixed to the housing 100. The upper plate 910 of the cover 900 may include a cover hole 911 corresponding to the bracket hole 511 of the bracket 500.

[0133] In addition, cover 900 can be used to support substrate 300 and coil part 400, so that it will not be pushed by Lorentz force. In addition, cover 900 can be used to dissipate the heat generated by coil part 400 by conduction. The side plate 920 of cover 900 may include a curved portion, wherein a part of side plate 920 is bent inward to contact with the outer surface of substrate 300. The curved portion may include one or more of an extrusion portion, a press-fit portion and a concave portion. In this embodiment, as a heat dissipation optimization structure, coil part 400, substrate 300 and cover 900 can be connected by a structure that the curved portion contacts with substrate 300, so that the heat generated by coil part 400 is dissipated to the outside by conduction.

[0134] The side plate 920 of the cover 900 may include a plurality of side plates. The plurality of side plates may include first to fourth side plates. The side plate 920 of the cover 900 may include a first side plate and a second side plate facing each other or disposed opposite to each other, and a third side plate and a fourth side plate facing each other or disposed opposite to each other between the first side plate and the second side plate. In addition, the first to fourth side plates may be respectively connected to the first to fourth parts 301 to 304 (see Figure 7 )touch.

[0135] Furthermore, in this embodiment, the housing 100 may be disposed on the main substrate 4 .

[0136] In addition, the housing 100 may accommodate the bracket 500 therein. In addition, the lens module 200 may be coupled to the housing 100. The housing 100 may be coupled to a barrel of the lens module 200.

[0137] In addition, the housing 100 may be a coil case to which the coil is fixed. Therefore, the housing 100 may be coupled to the coil part 400 and the substrate 300 connected to the coil part 400.

[0138] Specifically, the housing 100 may include an inner portion 110 coupled with the lens module 200 and an outer portion 120 coupled with the coil portion 400. The inner portion 110 and the outer portion 120 may be integrally formed or separately formed.

[0139] The inner portion 110 may be located inside the housing 100. In addition, the inner portion 110 of the housing 100 may include a hole 111. The hole 111 may be hollow. The hole 111 may pass through the housing 100 in the optical axis direction.

[0140] In addition, a thread 112 may be provided on an inner circumferential surface of the inner portion 110. The thread 112 of the inner portion 110 may be coupled to the lens module 200.

[0141] In this embodiment, the thread 112 may be located at the bottom of the inner circumferential surface of the inner portion 110. Therefore, the top of the inner circumferential surface of the inner portion 110 may be disposed to face and be spaced apart from the outer circumferential surface of the lens module 200.

[0142] In addition, the inner portion 110 of the housing 100 may include a protrusion 113. The protrusion 113 may extend upward. The protrusion 113 may prevent foreign substances from being injected into the lens module 200 located inside the inner portion 110.

[0143] The outer part 120 may be disposed outside the inner part 110. The outer part 120 and the inner part 110 may be formed as separate members or integrally formed. The outer part 120 of the housing 100 may include a side wall. The side wall of the housing 100 may be disposed outside the bracket 500. In addition, the coil part may be disposed on the outer part 120.

[0144] In addition, the sidewalls of the housing 100 may include first to fourth housing sidewalls. The housing 100 may include first and second housing sidewalls disposed opposite to each other, and third and fourth housing sidewalls disposed opposite to each other between the first and second housing sidewalls.

[0145] In addition, the outer portion 120 of the housing 100 may include a housing hole 121. The housing hole 121 may have a shape corresponding to the shape of the coil portion 400. The area of ​​the housing hole 121 may be greater than the area of ​​the coil portion 400. Therefore, the housing hole 121 can accommodate the coil portion 400. In other words, the housing hole 121 may be located on the side wall of the housing 100. In this embodiment, the housing hole 121 may be formed in each of the first to fourth housing side walls of the housing 100.

[0146] The housing hole 121 may include an extension groove 122 extending downward. One end of the coil part 400 may be disposed on the extension groove 122.

[0147] Specifically, the side wall of the housing 100 may include a first groove and a second groove formed to be recessed diagonally from the lower end of the housing hole 121. In other words, the first groove and the second groove may be formed to be recessed toward the side wall of the housing 100 adjacent to the housing hole 121. According to this configuration, electrical connection between the wire connected to the coil part 400 and the substrate may be easily achieved.

[0148] In addition, the coupling protrusion 123 may be located on the outer surface of the housing 100 (or on the outer surface of the outer portion 120). The housing 100 may be coupled to the substrate through the coupling protrusion 123. The coupling protrusion 123 may be located to correspond to the body portion 310 of the substrate (see Figure 7 ). A plurality of coupling protrusions 123 may be formed.

[0149] In addition, the outer portion 120 of the housing 100 may include a first step portion 124 and a second step portion 126. The first step portion 124 and the second step portion 126 may be located above and below the side wall of the housing 100. In addition, the first step portion 124 and the second step portion 126 may have a structure extending outward from the outer surface of the side wall of the housing 100. In addition, the first step portion 124 and the second step portion 126 may overlap with the substrate in the optical axis direction.

[0150] The first step portion 124 may be disposed under a portion of the substrate 300. In this embodiment, the first step portion 124 may be located under the body portion 310 of the substrate 300. In addition, the terminal portion 320 and the first step portion 124 may overlap each other in a direction perpendicular to the optical axis direction.

[0151] The second step portion 126 may be located on the outer surface of the housing 100 and at a corner of the outer surface. The second step portion 126 may be located on an upper portion of the body portion 310.

[0152] In addition, the first and second step portions 124 and 126 may be formed to correspond to the shape of the substrate 300. In addition, the substrate 300 may be disposed on the outer surface of the side wall of the housing 100 through the first and second step portions 124 and 126.

[0153] In addition, the first step portion 124 may include a first step groove 125. The first step groove 125 may be formed in the first step portion 124. A foreign matter prevention member may be provided in the first step groove 125. According to this configuration, foreign matter may be prevented from being injected into the housing 100 from the outside. Therefore, the reliability and accuracy of the camera module according to the embodiment may be improved.

[0154] The second stepped portion 126 may be disposed to be spaced apart from the substrate 300 at one end thereof.

[0155] The outer portion 120 of the housing 100 may include a damping protrusion 127. The damping protrusion 127 may be formed on an outer surface of the outer portion 120 of the housing 100. The damping protrusion 127 may be inserted into the substrate hole 311 of the substrate 300. The damping protrusion 127 may include a plurality of protrusions.

[0156] The outer portion 120 of the housing 100 may include a damping protrusion 127 protruding toward the inner side (eg, the bracket 500 ). The damping protrusion 127 may be located on an inner surface of the outer portion 120 .

[0157] In addition, the damping protrusion 127 may overlap with the elastic member 700 to be described below in a direction perpendicular to the optical axis direction. In addition, the damping protrusion 127 may be coupled to at least a portion of the elastic member 700 through a damping liquid. According to this configuration, by reducing vibration generated when tilting, the reliability of the device can be improved and the tilting of the optical member due to vibration can be minimized.

[0158] The outer portion 120 of the housing 100 may include a housing protrusion 128. The housing protrusion 128 may be inserted into the hole of the second coupling portion 720. Therefore, the housing protrusion 128 may be coupled to the second coupling portion 720.

[0159] The outer portion 120 of the housing 100 may include a housing guide portion 129. The housing guide portion 129 may be located at a corner of the housing 100. The cover 900 may be placed on the housing guide portion 129. In other words, the cover 900 and the uppermost portion of the side wall 520 (e.g., the uppermost surface of the side wall 520) may be spaced apart from each other by the housing guide portion 129.

[0160] The housing protrusion 128 may be disposed more inwardly than the housing guide portion 129. In other words, the housing guide portion 129 may be disposed more outwardly than the housing protrusion 128. Furthermore, the housing guide portion 129 may be disposed more outwardly than an elastic member to be described below.

[0161] The housing protrusion 128 may have a lower surface 128a positioned more downward than a lower surface 129a of the housing guide portion 129. In other words, the lower surface 128a of the housing protrusion 128 and the lower surface 129a of the housing guide portion 129 may form a stepped portion.

[0162] In addition, the housing protrusion 128 may have an upper surface positioned downwardly than an upper surface of the housing guide portion 129. In other words, the housing guide portion 129 may be disposed to be spaced apart from the first protrusion of the bracket to provide a space for the first protrusion to easily tilt within the housing 100.

[0163] The guide portion GP may be disposed at an outer side of the elastic member. In addition, the guide portion GP may protrude from the housing 100 in the optical axis direction or the third direction.

[0164] The guide portion GP may be located at each corner of the housing 100. In this embodiment, the guide portion GP may be disposed at corners facing each other. In addition, the guide portion GP may be located between the housing guide portions 129 facing each other. For example, the guide portion GP and the housing guide portion 129 may be disposed in different diagonal directions. According to this configuration, the elastic member may be coupled to the housing and the bracket to minimize deformation due to tilt, impact, etc.

[0165] The guide portion GP may be formed to protrude from the lower surface 128a of the housing protrusion 128 in the optical axis direction. For example, the guide portion GP may be located between the lower surface 128a of the housing protrusion 128 and the lower surface 129a of the housing guide portion 129. In addition, the guide portion GP may be provided outside the elastic member and the housing protrusion 128.

[0166] In addition, the guide portion GP may include a shape corresponding to at least a portion of the periphery of the second coupling portion of the elastic member. In this embodiment, the second coupling portion may extend in a first direction (X-axis direction) and a second direction (Y-axis direction). Correspondingly, the guide portion GP may have a side surface GE2 extending in the first direction corresponding to a portion of the second coupling portion extending in the first direction, and a side surface GE1 extending in the second direction corresponding to a portion of the second coupling portion extending in the second direction. In other words, the inner surface of the guide portion GP may correspond to the outer surface of the second coupling portion. In particular, the inner surface of the guide portion GP may correspond to the periphery or outer surface of the second coupling portion facing the inner surface. In other words, the inner surface of the guide portion GP may be formed along the edge of the second coupling portion adjacent thereto.

[0167] According to this structure, the position movement of the elastic member is limited by the guide portion GP of the shell 100 and can be prevented from deformation, etc. In other words, the guide portion GP of the shell 100 can prevent deformation of the elastic member and fix the position to reliably maintain the precise movement of the bracket, etc. connected to the elastic member.

[0168] The housing 100 may include a connection portion 130. The connection portion 130 may connect the inner portion 110 and the outer portion 120. At least a portion of the connection portion 130 may overlap the bracket 500 in the optical axis direction. The connection portion 130 may be disposed on at least a portion of the bracket 500.

[0169] Furthermore, through the above-mentioned integrated structure, the housing 100 can be reduced in size and the number of components. Furthermore, the housing 100 can be made of a non-magnetic material.

[0170] In addition, the shell 100 may include a first corner corresponding to the first corner portion of the bracket 500, a second corner corresponding to the second corner portion of the bracket 500, a third corner corresponding to the third corner portion of the bracket 500, and a fourth corner corresponding to the fourth corner portion of the bracket 500, which will be described below.

[0171] Figure 7 is a perspective view of a substrate and a coil of a camera module according to an embodiment, and Figure 8 2 is a view illustrating coupling between a coil and a substrate of a camera module according to various embodiments.

[0172] refer to Figure 7 and Figure 8 As described above, the substrate 300 may be located on the outer surface of the side wall of the housing. In addition, the substrate 300 may be disposed between the side plate of the cover and the side wall of the housing. A portion of the substrate 300 may be located between the first step portion and the second step portion of the housing. The substrate 300 may be disposed to surround the outer surfaces of the four side walls of the housing.

[0173] In addition, the substrate 300 may be electrically connected to the coil part 400. The coil part 400 may be disposed on the inner surface of the substrate 300. In addition, the substrate 300 may be electrically connected to the main substrate to provide a signal to the coil part 400. The substrate 300 may be fixed to the housing 100, which is a coil shell, so that the coil part 400 is stably fixed. A position sensor 450 configured to detect the position of the magnet part 600 may also be coupled to the substrate 300.

[0174] In addition, the substrate 300 may include an FPCB. In addition, the position sensor 450 and the coil part 400 may be surface mounted on the substrate 300. This embodiment may provide a structure that does not require a separate component for conducting the position sensor 450 when the position sensor 450 is coupled to the substrate 300.

[0175] Furthermore, in this embodiment, the substrate 300 is located outside the housing 100 so that the terminal portion 320 of the substrate 300 and the main substrate 4 can be soldered, thereby minimizing the space required for connection.

[0176] First, the substrate 300 may include a first portion 301 to a fourth portion 304. The substrate 300 may include a first portion 301 disposed on a first housing sidewall of the housing 100, a second portion 302 disposed on a second housing sidewall of the housing 100, a third portion 303 disposed on a third housing sidewall of the housing 100, and a fourth portion 304 disposed on a fourth housing sidewall of the housing 100.

[0177] The fourth portion 304 may connect the first portion 301 and the second portion 302 , and the second portion 302 may connect the third portion 303 and the fourth portion 304 .

[0178] In addition, the first part 301 and the third part 303 may be spaced apart from each other. One end of the first part 301 and one end of the third part 303 may be located on a base portion formed to protrude from a corner where the first and third case sidewalls of the case 100 meet.

[0179] In addition, the lengths of the first to fourth parts 301 to 304 may be reduced in the third direction at the portions contacting each other. In addition, the inner surface of each contacting portion may have a curvature. Therefore, in the region where the substrate 300 is easily coupled to the outer surface of the housing 100 and is bent at the outer surface of the housing 100, stress may be reduced.

[0180] More specifically, the substrate 300 may include a body portion 310. The coil portion 400 may be seated on the body portion 310, and the body portion 310 may be coupled to the coil portion 400. In addition, the position sensor 450 may be coupled to the body portion 310.

[0181] The body portion 310 may be disposed on the outer surface of the housing 100. The body portion 310 of the substrate 300 may include a substrate hole 311. The coupling protrusion 123 of the housing 100 may pass through the substrate hole 311. Therefore, the substrate 300 and the housing 100 may be coupled to each other through the coupling protrusion 123 and the substrate hole 311.

[0182] In addition, the substrate 300 may include a terminal portion 320. The terminal portion 320 may extend downward from the body portion 310 and include a plurality of terminals. In other words, the terminal portion 320 may extend from the body portion 310 toward the lower main substrate. In addition, the terminal portion 320 may be connected to the main substrate by welding. The terminal portion 320 may be located between the main substrate and the body portion 310 because it is located on the lower portion of the substrate 300. According to this configuration, the electrical connection between the substrate 300 and the terminal portion 320 may be easily achieved. For example, the electrical connection between the coil portion 400 and the substrate 300 may be easily achieved. In addition, the ease of assembly may be ensured by minimizing the space for electrical connection.

[0183] In addition, the terminal portion 320 may be formed in a shape corresponding to the first step portion 124. In this embodiment, the terminal portion 320 may be located between the first step portions 124.

[0184] The base plate 300 may include an extension portion 330. The extension portion 330 may extend upward from the body portion 310. The extension portion 330 may be located at an upper end of the base plate 300. In other words, the extension portion 330 may be formed to extend from the body portion 310 toward an upper plate of the cover.

[0185] The extension portion 330 may be formed in a shape corresponding to the second step portion 126. The extension portion 330 may be located between the second step portions 126.

[0186] In addition, the coil part 400 may be positioned on the substrate 300 and coupled to the substrate 300. The coil part 400 may be coupled to the substrate 300 by a coupling member or the like. The coil part 400 may be coupled to the inner surface of the substrate 300. In addition, the coil part 400 may be electrically connected to the substrate 300. In addition, the coil part 400 may be positioned in a housing hole of a side wall of the housing 100.

[0187] In addition, the coil part 400 can be arranged relative to the magnet part to be described below. That is, the coil part 400 can be arranged to face the magnet part. In addition, the coil part 400 can interact electromagnetically with the magnet part. In this embodiment, when current is supplied to the coil part 400 to form an electromagnetic field around the coil part 400, the magnet part can move relative to the coil part 400 by the electromagnetic interaction between the coil part 400 and the magnet part. The coil part 400 and the magnet part 600 can be arranged in a position relative to each other.

[0188] In addition, the coil part 400 may include a pair of ends (lead wires) for supplying power. At this time, the first end 401 may be pulled out to the left and lower side of the coil part 400, and the second end 402 may be pulled out to the right and lower side of the coil part 400. The coil part 400 may include a first end 401 and a second end 402 coupled to the substrate 300. In addition, when the first end 401 and the second end 402 extend only in the upward direction or the downward direction, the two ends of the coil are concentrated in the center, so the impact is concentrated in the central area of ​​the coil part 400, so that the coil part is easily deformed or broken, and it is difficult to manufacture the coil part, but according to this embodiment, this problem can be solved.

[0189] like Figure 8 As shown in (a), the first end portion 401 and the second end portion 402 may be coupled to the terminal 312 of the substrate 300. In this embodiment, the first end portion 401 and the second end portion 402 may be coupled to the terminal 312 of the substrate 300 by welding or silver epoxy. Thus, the coil portion 400 may be coupled to the substrate 300.

[0190] At the same time, if Figure 8 (b) shows, as a modified example, the first end 401 and the second end 402 can be connected to the terminal 312 of the substrate 300 by a separate connecting member 305. The connecting member 305 can be a coil support. By applying the connecting member 305, the coil part 400 can be surface mounted on the substrate 300. In this case, the advantage is that the ease of assembly is increased by the operability of the manual welding arrangement and the shortening of the operation time, and the advantage is that the position misalignment tolerance of the coil part 400 caused by assembly is reduced compared with manual welding. In addition, the center misalignment between the coil part 400 and the magnet part can be prevented.

[0191] The first end 401 and the second end 402 may be disposed in the extension groove 122 of the housing 100. At this time, the conductive material connected to the first end 401 and the second end 402 and / or the above-mentioned coupling member 305 may also be disposed in the extension groove 122 of the housing 100.

[0192] The coil portion 400 may include a plurality of coils. The coil portion 400 may include four coils. The coil portion 400 may include a first coil 410 to a fourth coil 440. Current may be applied to each of the first coil 410 to the fourth coil 440. The first coil 410 to the fourth coil 440 may be electrically separated. Alternatively, the first coil 410 to the fourth coil 440 may have currents flowing in opposite directions of the coils facing each other. For example, the first coil 410 and the third coil 430 may be formed in a structure that is antiparallel to each other, and the second coil 420 and the fourth coil 440 may be formed in a structure that is antiparallel to each other.

[0193] In addition, the first to fourth coils 410 to 440 may have currents of different directions applied to the coils facing each other. Therefore, diagonal tilt or horizontal tilt control of the optical member may be performed.

[0194] In addition, current may be applied to two coils facing each other among the first coil 410, the second coil 420, the third coil 430, and the fourth coil 440. Therefore, as described below, optical member tilt control may be performed in the horizontal direction. A detailed description thereof will be given below.

[0195] Specifically, the coil portion 400 may include a first magnet 601 (see Fig. 9 ) of the first coil 410, facing the second magnet 602 (see Fig. 9 ) of the second coil 420, facing the third magnet 603 (see Fig. 9 ) and the third coil 430 facing the fourth magnet 604 (see Fig. 9 ) of the fourth coil 440.

[0196] In addition, the first coil 410 may be disposed on a first housing side wall of the housing. In addition, the second coil 420 may be disposed on a second housing side wall of the housing. The third coil 430 may be disposed on a third housing side wall of the housing. In addition, the fourth coil 440 may be disposed on a fourth housing side wall of the housing.

[0197] In addition, in this embodiment, four coils can be controlled by two channels. The first coil 410 and the second coil 420 can be electrically connected. However, the direction of the Lorentz force generated between the first coil 410 and the first magnet 601 and the direction of the Lorentz force generated between the second coil 420 and the second magnet 602 can be opposite to each other. For example, the first coil 410 and the second coil 420 can be arranged so that the current flows in opposite directions to each other. In this embodiment, the first coil 410 and the second coil 420 can be arranged to be wound in opposite directions. Alternatively, the first coil 410 and the second coil 420 can be arranged to be wound in the same direction, and the polarity of the first magnet 601 and the polarity of the second magnet 602 can be arranged in different directions. At the same time, the first coil 410 and the second coil 420 can be electrically separated and can also be controlled as a whole by the control unit.

[0198] In addition, the third coil 430 and the fourth coil 440 may be electrically connected. However, the direction of the Lorentz force generated between the third coil 430 and the third magnet 603 and the direction of the Lorentz force generated between the fourth coil 440 and the fourth magnet 604 may be opposite to each other. The third coil 430 and the fourth coil 440 may be arranged so that current flows in directions opposite to each other. For example, the third coil 430 and the fourth coil 440 may be arranged to be wound in opposite directions. Alternatively, the third coil 430 and the fourth coil 440 may be arranged to be wound in the same direction, and the polarity of the third magnet 603 and the polarity of the fourth magnet 604 may be arranged in different directions. At the same time, the third coil 430 and the fourth coil 440 may be electrically separated and may also be controlled as a whole by the control unit.

[0199] Fig. 9 is an exploded perspective view showing a bracket, a magnet, and an optical member of a camera module according to an embodiment, Fig.10 is an exploded perspective view showing a bracket, a magnet, and an optical member of a camera module according to an embodiment, Fig.11 is from Fig.10 Perspective drawings from different angles, Fig.12 is a top view of a bracket, a magnet, and an optical member of a camera module according to an embodiment, Fig.13 is a diagram for describing the Lorentz force between the magnet and the coil in this embodiment, and Fig.14 : is a view for describing the diagonal tilt control of the optical member in this embodiment.

[0200] refer to Figures 9 to 14 , the bracket 500 may be coupled to the magnet portion 600 and the optical member 800 .

[0201] First, as described above, the bracket 500 may include the bracket hole 511. In addition, the lens module may be seated in the bracket hole 511. An outwardly extending groove portion 511a may be added to the bracket hole 511. When assembled by the groove portion 511a, an assembly tolerance may be minimized.

[0202] In addition, the bracket 500 may include a side wall groove 522, and the magnet part 600 may be disposed in the side wall groove 522. In addition, the optical member 800 may be disposed below the bracket 500. The bracket 500 may move integrally with the optical member 800. For example, when the bracket 500 is tilted, the optical member 800 coupled to the bracket 500 may also be tilted. In addition, when the bracket 500 is tilted, the magnet part 600 coupled to the bracket 500 may also be tilted. The bracket 500 may be a shell in which the optical member 800 and the magnet part 600 are assembled.

[0203] The bracket 500 may use a non-magnetic material in order to minimize the influence of magnetic force on the magnet part 600. The bracket 500 may be spaced apart from the housing 100 within the housing 100. In addition, the bracket 500 may be connected to the elastic member 700. The bracket 500 may be tilted by being coupled to the elastic member 700 in the first diagonal direction of the optical member 800. Since the bracket 500 is a component that is actually driven, the weight (size) needs to be minimized.

[0204] The bracket 500 may include a first side surface, a second side surface disposed opposite to the first side surface, and third and fourth side surfaces disposed opposite to each other between the first side surface and the second side surface. The bracket 500 may include a first corner portion between the first side surface and the third side surface, a second corner portion between the second side surface and the third side surface, a third corner portion between the second side surface and the fourth side surface, and a fourth corner portion between the fourth side surface and the first side surface. The diagonal direction may be a direction from the first corner portion toward the third corner portion, or a direction from the third corner portion toward the first corner portion. In addition, the diagonal direction may be a direction from the second corner portion toward the fourth corner portion, or a direction from the fourth corner portion toward the second corner portion.

[0205] The bracket 500 may include a base 510 , a sidewall 520 , and a second protrusion 530 .

[0206] The base 510 may be located in the housing. The optical member 800 may be located below the base 510. In this embodiment, the base 510 may include a base groove 512 formed on the lower surface. The optical member 800 may be disposed in the base groove 512. The base groove 512 may be formed to correspond to the shape of the optical member 800. At least a portion of the optical member 800 may be accommodated in the base groove 512. In addition, in the base groove 512, the optical member 800 may be coupled to the base 510 by an adhesive member.

[0207] In order to improve the coupling force between the base 510 and the optical member 800 by the adhesive member, the coupling grooves 512 a to 512 d may be located at the corners of the lower portion of the base 510 .

[0208] In this embodiment, the base groove 512 may include a first coupling groove 512a, a second coupling groove 512b, a third coupling groove 512c, and a fourth coupling groove 512d. The first coupling groove 512a may be located between the first edge surface M1 and the fourth edge surface M4. In addition, the second coupling groove 512b may be located between the second edge surface M2 and the third edge surface M3. In addition, the third coupling groove 512c may be located between the second edge surface M2 and the fourth edge surface M4. In addition, the fourth coupling groove 512d may be located between the first edge surface M1 and the third edge surface M3. The first edge surface M1 to the fourth edge surface M4 may be the side surfaces of the base 510 formed by the base groove 512.

[0209] The bonding member may be injected into the first coupling groove 512a, the second coupling groove 512b, the third coupling groove 512c, and the fourth coupling groove 512d. In this embodiment, after the optical member 800 is placed in the base groove 512, the bonding member may be injected into the first coupling groove 512a, the second coupling groove 512b, the third coupling groove 512c, and the fourth coupling groove 512d. At this time, the bonding member may be extended to the lower surface of the base groove 512 by capillary phenomenon. In other words, the bonding member may be located between one surface of the optical member 800 and the lower surface of the base groove 512.

[0210] In addition, the optical member 800 may be disposed to be spaced apart from the base groove 512 by a first separation distance in the third direction or the first / second direction. The first separation distance may be 20 μm to 100 μm. There is a problem in that when the separation distance is less than 20 μm, the coupling force between the optical member and the bracket may be reduced, and when the separation distance is greater than 100 μm, it is difficult to easily perform capillary action by the coupling member, and the size of the bracket increases.

[0211] In addition, the base 510 includes a base hole, and the base hole may be hollow. The base hole may be formed to pass through the base 510 in the optical axis direction.

[0212] The side wall 520 may extend upward from the base 510. The side wall 520 may be located on an upper surface of the base 510 and disposed along an edge of the base 510. The magnet part 600 may be fixed to the side wall 520.

[0213] The side wall 520 may include a first protrusion 521. The first protrusion 521 may be located at an upper portion of the side wall 520. The first protrusion 521 may be coupled to an elastic member. More specifically, the first protrusion 521 may be coupled to the first coupling portion 710. In addition, the first protrusion 521 and the housing may be coupled to each other through the elastic member.

[0214] The side wall 520 or the first protrusion 521 may include a protrusion 521a and a guide protrusion 521b. The protrusion 521a may be located on the upper surface of the first protrusion 521 and may protrude upward. The protrusion 521a may be connected to the first coupling portion 710. The protrusion 521a may be inserted into the hole of the first coupling portion 710. In this embodiment, the protrusion 521a may be positioned to correspond to the first protrusion 521. The first protrusion 521 may protrude upward in the diagonal direction. In addition, corresponding to this configuration, the protrusion 521a may include a first protrusion 521a-1 and a second protrusion 521a-2. At this time, the first protrusion 521a-1 and the second protrusion 521a-2 may be arranged in the diagonal direction. For example, the first protrusion 521a-1 and the second protrusion 521a-2 may be arranged at the corner portions facing each other and symmetrically arranged in the optical axis direction.

[0215] The guide protrusion 521b may be located outside the protrusion 521a. In this embodiment, the guide protrusion 521b may be located in the diagonal direction because it is provided on the first protrusion 521. In addition, the protrusion 521a provided in the diagonal direction may be located between the guide protrusions 521b provided in the diagonal direction. Therefore, the elastic member 700 to be described below may be guided by the guide protrusion 521b while being coupled to the protrusion 521a. The guide protrusion 521b may guide the elastic member 700 to be placed on the first protrusion 521 of the bracket 500, and prevent the elastic member 700 from being deformed even when an impact occurs due to tilting or the like.

[0216] The thickness of the guide protrusion 521b may have a ratio of 1:1 to 1:2 with the thickness of the elastic member 700. When the thickness ratio is less than 1:1, there is a limitation in deformation of the elastic member due to impact, and when the thickness ratio is greater than 1:2, there is a problem that the range of inclination of the optical member is limited and separation occurs. Here, the thickness refers to the length in the third direction.

[0217] The guide protrusion 521 b may include a shape corresponding to at least a portion of the outer circumference of the first coupling portion 710 disposed at a corner of the elastic member 700 .

[0218] The guide protrusion 521b may include a first guide protrusion 521b-1 and a second guide protrusion 521b-2. The first guide protrusion 521b-1 and the second guide protrusion 521b-2 may be arranged to face each other. For example, the first guide protrusion 521b-1 and the second guide protrusion 521b-2 may have an inner surface corresponding to at least a portion of the outer periphery of the first coupling portion. Therefore, the inner surfaces of the first guide protrusion 521b-1 and the second guide protrusion 521b-2 may be positioned to correspond to the outer surface of the first coupling portion. In this embodiment, the inner surface of the first guide protrusion 521b-1 and the inner surface of the second guide protrusion 521b-2 may be positioned to face the outer surface of the first coupling portion.

[0219] For example, the first coupling portion may have an outer surface extending in the first direction or the second direction. Corresponding to the outer surface of the first coupling portion, the guide protrusion 521b may have an inner surface extending in the first direction or the second direction corresponding to the outer surface of the first coupling portion. At this time, the first guide protrusion 521b-1 and the second guide protrusion 521b-2 may include at least one of the inner surface extending in the first direction or the inner surface extending in the second direction. In addition, the first guide protrusion 521b-1 and the second guide protrusion 521b-2 may be located outside the elastic member. According to this configuration, the guide protrusion 521b can maintain the coupling force between the elastic member and the protrusion 521a, and easily prevent the movement and deformation of the elastic member.

[0220] The side wall 520 may include a side wall groove 522. The side wall groove 522 may be located on the outer surface of the side wall 520. The side wall groove 522 may be located to correspond to the housing grooves of the first housing side wall to the fourth housing side wall of the housing. The magnet portion 600 may be placed in the side wall groove 522. The side wall groove 522 may be a recess.

[0221] In other words, the sidewall groove 522 may support the magnet part 600. The magnet part 600 may be coupled to the sidewall groove 522 by an adhesive member. Therefore, the sidewall groove 522 may fix the magnet part 600.

[0222] In addition, the adhesive groove 523 may be provided at the upper end and / or the lower end of the side wall 520. In addition, the bonding member may be provided in the adhesive groove 523. In this embodiment, the magnet part 600 may be placed in the side wall groove 522, and the bonding member may be injected through the adhesive groove 523 for fixation between the bracket 500 and the magnet part 600. The bonding member may be injected between the magnet part 600 and the side wall groove 522 by capillary phenomenon along the adhesive groove 523. Therefore, the bonding member may improve the coupling force between the housing and the substrate. In this case, the magnet part 600 and the side wall groove 522 may have a second separation distance d11. The second separation distance d11 may be 20 μm to 100 μm. There is a problem in that when the second separation distance is less than 20 μm, the coupling force between the bracket and the magnet is reduced, and when the second separation distance is greater than 100 μm, it is difficult to easily perform the capillary phenomenon through the bonding member, and the size of the bracket increases.

[0223] In addition, the coupling member may fix the magnet portion 600 to the sidewall groove 522 through ultraviolet (UV) curing, thermal curing, or the like.

[0224] Furthermore, each component of the camera module and the step structure or hole in the bracket 500 facilitates coupling between components as an alignment mark and ultimately minimizes the weight of the camera module by minimizing the volume of the components.

[0225] In this embodiment, the assembling groove 520k may be located on the upper surface of the side wall 520. When the housing 100 and the bracket 500 are coupled through the assembling groove 520k, the coupling position may be easily recognized. Therefore, the assembly may be easily performed.

[0226] The second protrusion 530 may protrude downward from the base 510. In the present specification, the upper side or top may refer to one direction in the optical axis direction or the third direction, and the lower side or bottom may refer to a direction opposite to the one direction in the optical axis direction or the third direction. Correspondingly, the upper part may refer to an area in one direction in the optical axis direction or the third direction, and the lower part may refer to an area in a direction opposite to the one direction in the optical axis direction or the third direction.

[0227] The optical axis direction or the second protrusion 530 may be located at a corner of the base 510. When the optical member 800 and the bracket 500 are tilted in a diagonal direction, the second protrusion 530 may limit the tilt range. In addition, the second protrusion 530 may be prevented from being directly transmitted to the optical member 800, the magnet portion 600, etc. when tilted. According to this configuration, the second protrusion 530 may improve the reliability of the camera module.

[0228] The magnet part 600 may be disposed on the bracket 500. The magnet part 600 may be disposed on the side wall 520 of the bracket 500. The magnet part 600 may be disposed on the outer peripheral surface of the bracket 500. The magnet part 600 may protrude from the outer surface of the bracket 500. The magnet part 600 may be disposed to face the above-mentioned coil part in the housing hole. In addition, the magnet part 600 may electromagnetically interact with the coil part 400.

[0229] In addition, the magnet part 600 may be a flat magnet having a plate shape. The present invention is not limited thereto, and the magnet part 600 may be disposed at a corner between the side walls 520. At this time, the magnet part 600 may be a corner magnet having a hexahedral shape, the inner side surface of which is larger than the outer side surface.

[0230] The magnet part 600 may include a plurality of magnets. The magnet part 600 may include four magnets. The magnet part 600 may include a first magnet 601 to a fourth magnet 604. The magnet part 600 may include a first magnet 601, a second magnet 602 disposed opposite to the first magnet 601, a third magnet 603, and a fourth magnet 604 disposed opposite to the third magnet 603.

[0231] In addition, the first magnet 601 can be set on the first side surface of the bracket 500, the second magnet 602 can be set on the second side surface of the bracket 500, the third magnet 603 can be set on the third side surface of the bracket 500, and the fourth magnet 604 can be set on the fourth side surface of the bracket 500.

[0232] In this embodiment, the optical member 800 (or the bracket 500) can be tilted by the Lorentz force acting on the magnet part 600 and the coil part 400 through which the current flows. In order to generate the Lorentz force, the actuator can be roughly divided into a magnet part and a coil part. When the Lorentz force is generated, the actual operating part can be the magnet part 600. However, as a modified example, the coil part 400 can be moved by the Lorentz force. In order to drive the magnet part 600 in the upward direction and the downward direction, as shown in FIG. Fig.13 As shown in (b), the magnet part 600 may be bipolar magnetized. In other words, the magnet part 600 may have a form in which two magnets having bipolarity are stacked.

[0233] In addition, if Fig.13 As shown in (c), the current that generates the Lorentz force can be in one direction ( Fig.13(c) a) flows through the coil portion 400. In addition, the current can flow through the coil portion 400 in the forward direction. At the same time, the current can flow through the coil portion 400 in another direction opposite to the one direction (a). In other words, the current can flow through the coil portion 400 in the reverse direction. In addition, by arranging the N pole in the outer region of the upper portion of the magnet portion 600 (the S pole in the inner region) and arranging the S pole in the outer region of the lower portion thereof (the N pole in the inner region) and causing the current to flow in one direction, the driving direction can be adjusted according to the Lorentz force acting upward ( Fig.13 (a)).

[0234] According to the above description, by applying a forward current to two adjacent coils of the first coil 410 to the fourth coil 440 and applying a reverse current to the other two coils, the optical member 800 can be set to tilt in the diagonal direction of the optical member 800. In this embodiment, by controlling the current applied to the first coil 410 and the third coil 430, the optical member 800 can be tilted in the diagonal direction. By applying a current to two adjacent coils of the first coil 410 to the fourth coil 440, the optical member 800 can be set to tilt in the diagonal direction. The optical member 800 may include a first edge disposed at a position corresponding to the first corner portion of the bracket 500. At this time, the first edge of the optical member 800 may be tilted upward from the optical axis by the first coil 410 and the third coil 430. The optical member 800 may include a third edge disposed at a position corresponding to the third corner portion of the bracket 500. At this time, the third edge of the optical member 800 may be tilted downward from the optical axis by the second coil 420 and the fourth coil 440 , and the first edge of the optical member 800 may be tilted further upward from the optical axis by the second coil 420 and the fourth coil 440 .

[0235] In this embodiment, the tilt driving principle of the camera module is as follows. Four driving parts using the Lorentz force can be applied to the camera module. Fig.14 As shown, when the Lorentz force is generated in the "positive (+) direction" in the first driving part including the first coil 410 and the first magnet 601 and the third driving part including the third coil 430 and the third magnet 603, and when the Lorentz force is generated in the "negative (-) direction" in the second driving part including the second coil 420 and the second magnet 602 and the fourth driving part including the fourth coil 440 and the fourth magnet 604, the upper left diagonal line may be tilted upward ( Fig.14 ), and conversely, the lower right diagonal can slope downward ( Fig.14Thereafter, a Lorentz force may be generated in the "positive (+) direction" in the second driving section including the second coil 420 and the second magnet 602 and the third driving section including the third coil 430 and the third magnet 603, and a Lorentz force may be generated in the "negative (-) direction" in the first driving section including the first coil 410 and the first magnet 601 and the fourth driving section including the fourth coil 440 and the fourth magnet 604. In this case, the upper right diagonal line may be tilted upward ( Fig.14 ), and conversely, the lower left diagonal can be tilted downward ( Fig.14 a4 in the figure).

[0236] Next, a Lorentz force may be generated in a "negative (-) direction" in a first driving section including the first coil 410 and the first magnet 601 and a third driving section including the third coil 430 and the third magnet 603, and a Lorentz force may be generated in a "positive (+) direction" in a second driving section including the second coil 420 and the second magnet 602 and a fourth driving section including the fourth coil 440 and the fourth magnet 604. In this case, the lower right diagonal line may be tilted upward ( Fig.14 ), and conversely, the upper left diagonal can be tilted downward ( Fig.14 a6 in the figure).

[0237] Next, a Lorentz force may be generated in a "negative (-) direction" in a second driving section including the second coil 420 and the second magnet 602 and a third driving section including the third coil 430 and the third magnet 603, and a Lorentz force may be generated in a "positive (+) direction" in a first driving section including the first coil 410 and the first magnet 601 and a fourth driving section including the fourth coil 440 and the fourth magnet 604. In this case, the lower left diagonal line may be tilted upward ( Fig.14 ), and conversely, the upper right diagonal can be tilted downward ( Fig.14 a8 in the figure). The positive direction used above may be the upward direction, and the negative direction may be the downward direction. In this embodiment, the tilt drive may be sequentially performed in four directions (upper left, upper right, lower right, and lower left).

[0238] In this embodiment, the force of each driving part can be controlled by applying the driving part to four positions, which is conducive to precise control. At the same time, since the tilting is performed symmetrically up / down, the tilting distance can be reduced.

[0239] The elastic member 700 may be connected to the housing 100. The elastic member 700 may connect the bracket 500 and the housing 100. The elastic member 700 may have elasticity. Alternatively, the elastic member 700 may include a part having elasticity. In this embodiment, the elastic member 700 may include a leaf spring. The elastic member 700 may be made of a metal material.

[0240] The elastic member 700 can be assembled to the housing protrusion 128 of the housing 100 and the protrusion 521a of the first protrusion 521 of the bracket 500, and then fixed to the housing protrusion 128 of the housing 100 and the protrusion 521a of the first protrusion 521 of the bracket 500 by bonding. In this embodiment, since the assembly and fixing part of the elastic member 700 is located on the outside, the elastic member 700 can have a relatively easy assembly structure. In this embodiment, the elastic member 700 can have a structure that can have an up / down degree of freedom for the spring position. In each embodiment, the elastic member 700 can be located only at the upper side, at the upper side and the lower side, or only at the lower side.

[0241] The elastic member 700 may include a first coupling portion 710 and a second coupling portion 720 .

[0242] The first coupling portion 710 may be coupled to a corner of the bracket 500. Two first coupling portions 710 may be provided. The first coupling portion 710 may be arranged symmetrically about the optical axis in a first diagonal direction of the optical member 800. The two first coupling portions may be arranged opposite to each other with respect to the optical axis. The first coupling portion 710 may be coupled to each of the first corner portion of the bracket 500 and the third corner portion of the bracket 500.

[0243] The second coupling portion 720 may be coupled to a corner portion of the case 100 corresponding to another corner portion of the bracket 500 adjacent to the corner portion of the bracket 500 to which the first coupling portion 710 is coupled.

[0244] In addition, the second coupling portion 720 may be coupled to the housing protrusion 128 of the housing 100. In this embodiment, two second coupling portions 720 may be provided.

[0245] The second coupling portion 720 may be disposed symmetrically about the optical axis in a second diagonal direction different from the first diagonal direction of the optical member 800. The second coupling portions 720 may be disposed opposite to each other with respect to the optical axis. The second coupling portion 720 may be coupled to each of the second corner of the housing 100 and the fourth corner of the housing 100.

[0246] The protrusion 520a of the bracket 500 and the shell protrusion 128 of the shell 100 can be arranged to overlap at least partially in the first direction (X-axis direction) or the second direction (Y-axis direction). In this embodiment, the center of the protrusion 520a and the center of the shell protrusion 128 can be misaligned in the first direction (X-axis direction) or the second direction (Y-axis direction). Therefore, the center of the protrusion 520a and the center of the shell protrusion 128 can not overlap in the first direction (X-axis direction) or the second direction (Y-axis direction). Therefore, even when the bracket 500 is placed inside the shell 100, the coupling force between the shell 100 and the bracket 500 is also generated by the elastic member 700, and the impact or vibration can be easily blocked. As described above, the bracket 500 and the shell 100 can be connected and fixed to each other by the elastic member 700.

[0247] The elastic member 700 may include an elastic connection portion 730. The elastic connection portion 730 may connect the first connection portion 710 and the second connection portion 720. The elastic connection portion 730 may elastically connect the first connection portion 710 and the second connection portion 720. The elastic connection portion 730 may have elasticity. The elastic connection portion 730 may include a curved portion 731. The curved portion 731 may be a portion that is not formed by folding, but is formed in a zigzag shape. The elastic connection portion 730 may include a curved portion or a circular portion. A plurality of curved portions 731 may be continuously formed in the longitudinal direction of the elastic connection portion 730.

[0248] The elastic member 700 may be coupled to the case 100 and the bracket 500 on upper portions of the case 100 and the bracket 500 .

[0249] Furthermore, the elastic member 700 may be formed in various shapes to find the optimal shape and rigidity.

[0250] In this embodiment, the bent portion 731 of the elastic connection portion 730 may be formed flat in an area corresponding to the damping protrusion 127 of the housing 100 (e.g., an area facing each other). In addition, the damping protrusion 127 may be connected to the adjacent elastic connection portion 730 by a damping member dp. Therefore, the elastic member 700 may also vibrate due to the tilt of the bracket 500 and the optical member 800. At this time, the damping member dp can easily reduce the vibration of the elastic member 700, thereby improving the reliability of the device. The damping member dp may be made of a material that is cured by ultraviolet rays or heat.

[0251] In addition, the elastic connection portion 730 may be formed to be rounded at a point where the elastic connection portion 730 meets the first coupling portion 710 and the second coupling portion 720 .

[0252] In the modified example, Fig.17As shown, the elastic connection portion 730 may include a plurality of bent portions 731. The elastic connection portion 730 may include an elastic protrusion 732. In addition, a plurality of damping protrusions 127-1 and 127-2 of the housing 100 may be provided. At this time, the damping protrusions 127-1 and 127-2 may at least partially overlap with the elastic protrusion 732 in the first direction (X-axis direction) or the second direction (Y-axis direction). In addition, the elastic protrusion 732 and the damping protrusions 127-1 and 127-2 may be connected to each other by the damping member dp. The damping protrusions 127-1 and 127-2 may prevent the damping member dp from flowing to areas other than the damping protrusions 127-1 and 127-2. In addition, the influence of the damping member dp on the stiffness of the elastic member 700 may be minimized.

[0253] In addition, the elastic member 700 can have different diagonal directions connected to the bracket or the housing according to the arrangement position, such as the lower part or the upper part of the bracket 500. Therefore, the bracket 500 can be prevented from tilting in the initial state and the diagonal direction control can be performed with the same current.

[0254] In addition, in this embodiment, the elastic member 700 can distribute stress in the first direction (X-axis direction), the second direction (Y-axis direction), and the third direction (Z-axis direction) so that deformation due to stress from external impact does not occur. For example, the elastic member 700 can have a safety factor greater than or equal to 2 in the first direction (X-axis direction), the second direction (Y-axis direction), and the third direction (Z-axis direction).

[0255] In addition, the elastic connection part 730 can be located on each of the first side surface, the second side surface, the third side surface, and the fourth side surface of the bracket 500 to be symmetrically arranged. In other words, when moving 90 degrees in the clockwise direction or the counterclockwise direction, the elastic connection part 730 of the elastic member 700 can have the same shape. Therefore, the tilting (e.g., diagonal tilting) of the bracket 500 can be performed symmetrically.

[0256] In addition, each of the first coupling portion 710 and the second coupling portion 720 has a first coupling hole and a second coupling hole for coupling with the protrusion 521a and the housing protrusion 128, and the first coupling hole and the second coupling hole may further include coupling grooves formed to extend toward the adjacent elastic connection portion 730. The coupling grooves may minimize deformation of the elastic member 700 due to external impact by absorbing the external impact.

[0257] In this embodiment, the stiffness of the elastic member 700 may be in the range of 53 mN / mm to 80 mN / mm. At this time, the stiffness of the elastic member 700 may be the stiffness of the elastic connecting portion 730 of the elastic member 700. When the stiffness of the elastic member 700 is less than 53 mN / mm, there is a problem that the tilt angle is greater than the target tilt angle even when the current level decreases when referring to the measured value in the analysis operation, and in this embodiment, 80 mN / mm may be the maximum value in a limited space.

[0258] In addition, in this embodiment, the current level applied to the coil portion 400 may range from 18 mA to 22 mA. When the current applied to the coil portion 400 is less than 18 mA, there is a problem that, in the analytical operation test when the current applied to the coil portion 400 is less than 18 mA, when the stiffness of the elastic member 700 is 53 mN / mm, the inclination angle is small, and there is a limitation that the current consumption is large and heat is generated in the coil when the current exceeds 22 mA.

[0259] In addition, the housing 100 may include a stopper configured to limit the tilt range of the bracket 500 in the first direction (X-axis direction) or the second direction (Y-axis direction). The stopper may be located on the inner surface of the first housing side wall to the fourth housing side wall. In addition, the stopper may protrude inwardly.

[0260] In this embodiment, the stopper may include a first stopper ST1 and a second stopper ST2. In addition, the first stopper ST1 and the second stopper ST2 may be located on an inner surface of the outer portion 120 of the housing 100.

[0261] The first stopper ST1 may be located on the second shell sidewall or the fourth shell sidewall. In addition, the second stopper ST2 may be located on the first shell sidewall or the fourth shell sidewall. According to this configuration, the first stopper ST1 may limit the rotation range of the bracket 500 in the second direction (Y-axis direction). In addition, the second stopper ST2 may limit the rotation range of the bracket 500 in the first direction (X-axis direction). Therefore, according to the separation distance between the shell 100 and the bracket 500, the deformation of the elastic member 700 may be prevented by minimizing the stress applied to the elastic member 700.

[0262] In addition, the stopper may further include a third stopper ST3. The third stopper ST3 may be located on the upper surface of the connection portion 130. In addition, the third stopper ST3 may be formed to protrude upward. Therefore, the third stopper ST3 may limit the rotation range of the bracket 500 in the third direction (Z-axis direction). Therefore, according to the separation distance between the housing 100 and the bracket 500, by minimizing the stress applied to the elastic member 700, deformation of the elastic member 700 may be prevented.

[0263] As a further modified example, the camera module may have an elastic member disposed on the lower portion. Hereinafter, this will be described as a lower elastic member. The lower elastic member may be coupled to the lower portion of the housing 100 and the lower portion of the bracket 500. The lower elastic member includes a first coupling region coupled to the lower portion of the bracket 500, a second coupling region coupled to the lower portion of the housing 100, and a connection region connecting the first coupling region and the second coupling region.

[0264] The first coupling region of the lower elastic member may be coupled to another corner of the bracket 500 (a corner different from the corner connected between the upper elastic member and the bracket). The first coupling region of the lower elastic member may also be coupled to the second protrusion of the bracket 500.

[0265] For example, in this embodiment, the upper elastic member and the lower elastic member may be coupled in different diagonal directions. In other words, the diagonal direction of the portion to which the upper elastic member is coupled and the diagonal direction of the portion to which the lower elastic member is coupled may be different. Therefore, the tilting in the initial state of the bracket 500 can be prevented, and the tilting is controlled with the same current in all four diagonal directions.

[0266] Fig.18 is a perspective view of a camera module according to an embodiment, Fig.19 It is along Fig.18 The cross-sectional view taken along line EE' in Fig. 20 It is along Fig.18 A cross-sectional view taken along line FF' in FIG. Fig.21 It is along Fig.18 A cross-sectional view taken along line GG'.

[0267] refer to Figures 18 to 21 As described above, the first protrusion 521 may be located in the first diagonal direction in the bracket 500, and may not be located in the second diagonal direction. In this embodiment, the side wall 520 of the bracket 500 may have different lengths in the third direction at each corner portion. In other words, the length of the side wall of the bracket 500 at the first corner portion and the third corner portion may be greater than its length at the second corner portion and the fourth corner portion. The first protrusion 521 may, for example, be located only at the first corner portion and the third corner portion in the first diagonal direction.

[0268] In addition, the first protrusion 521 may be disposed to be spaced apart from the upper surface of the housing 100 by a first distance d1 in the third direction. For example, when the protrusion 521a is disposed on the first protrusion 521, the upper surface of the protrusion 521a and the uppermost surface of the housing 100 may be spaced apart from each other by the first distance d1.

[0269] Furthermore, since the first protrusion 521 is disposed to be spaced apart from the upper surface of the housing 100 by the first distance d1 in the third direction, the bracket 500 may be easily tilted by the first distance d1 in the diagonal direction in space.

[0270] The bracket 500 can rotate in a first diagonal direction by a first angle θ 1 Since the first angle θ 1 Including positive / negative (+ / -), step 1 and step 3 (or step 2 and step 4) can be performed as follows.

[0271] In addition, the bracket 500 can be rotated in the second diagonal direction by a second angle θ 2 Since the second angle θ 2 Including positive / negative (+ / -), step 2 and step 4 (or step 1 and step 3) can be performed as follows.

[0272] The first distance d1 may be determined by Equation 1 below.

[0273] [Equation 1]

[0274] L×tan(0.75×θ)≤first distance≤L×tan(1.25×θ)

[0275] (where L refers to the maximum length of the base, and θ refers to the maximum tilt angle of the bracket in the diagonal direction).

[0276] θ may also correspond to the tilt angle of the support required to perform steps 1 to 4 to be described below in order to obtain the SR image.

[0277] When the first distance is less than L×tan(0.75×θ), there is a problem that when the bracket is tilted, interference occurs between the bracket and the housing, thereby reducing the reliability of the device. For example, the elastic member may be damaged due to overshoot of the elastic member.

[0278] Furthermore, when the first distance is greater than L×tan(1.25×θ), there is a limitation in that the overall height of the camera module increases due to an increase in the size of the housing.

[0279] Fig. 22 It is a view for describing the driving sequence of the coil portion.

[0280] The driver located on the substrate can generate a first output signal and a second output signal generated according to a trigger signal received from the image sensor. The first output signal can be input to the first coil and the third coil, and the second output signal can be input to the second coil and the fourth coil.

[0281] The trigger signal may be a square wave signal in which pulses are generated at a constant period. The pulse interval (i.e., pulse period) of the trigger signal may be an image frame interval. The interval from s rising edges of a pulse of the trigger signal to s rising edges of the next pulse thereof may be an image frame interval. The pulse width of the trigger signal may be set to be less than an image frame interval.

[0282] Before the driving sequence of the coil part starts, that is, in a default state, the current levels of the first output signal and the second output signal may be 0 level. Here, 0 level may represent a current of 0A, but is not limited thereto.

[0283] When the driving sequence of the coil part begins, after the delay time T set by the falling edge of the pulse based on the trigger signal, the current level of the first output signal and the second output signal is controlled. The current level of the first output signal and the second output signal can be controlled for each frame interval. The first output signal and the second output signal can be controlled to have a high level current or a low level current for each frame interval. The high level current can represent a state where the current value is greater than the reference level current value, and the low level current can represent a state where the current value is less than the reference level current value. For example, when the reference level is set to 0A, the high level can represent a current with a (+) value, and the low level can represent a current with a (-) value. When the current level of the output signal is different in consecutive steps, a predetermined time may be required to increase or decrease the current level.

[0284] The following table 1 shows Fig. 22 A table of the first output signal and the second output signal is shown.

[0285] [Table 1]

[0286] step First output signal (X) Second output signal (Y) 1 (-) (+) 2 (+) (+) 3 (+) (-) 4 (-) (-)

[0287] In Table 1, (-) represents a low level current, and (+) represents a high level current. Step 1 refers to the first tilt sequence, step 2 refers to the second tilt sequence, step 3 refers to the third tilt sequence, and step 4 refers to the fourth tilt sequence. When the drive sequence of the coil part begins, after the delay time set at the falling edge of the first pulse, the current level of the first output signal and the second output signal can be controlled (step 1). The first output signal can be controlled from a reference level current to a low level current. The second output signal can be controlled from a reference level current to a high level current. In other words, step 1 can control the first output signal to have a low level current, and control the second output signal to have a high level current. After the delay time set at the falling edge of the second pulse, the current level of the first output signal and the second output signal can be controlled (step 2). The first output signal can be controlled from the low level current controlled in step 1 to a high level current. The second output signal can be controlled to maintain the high level current controlled in step 1. In other words, step 2 can control the first output signal to have a high level current, and control the second output signal to have a high level current.

[0288] After the delay time set at the falling edge of the third pulse, the current levels of the first output signal and the second output signal can be controlled (step 3). The first output signal can be controlled to maintain the high level current controlled in step 2. The second output signal can be controlled from the high level current controlled in step 2 to a low level current. In other words, step 3 can control the first output signal to have a high level current, and control the second output signal to have a low level current.

[0289] After the delay time set at the falling edge of the fourth pulse, the current levels of the first output signal and the second output signal can be controlled (step 4). The first output signal can be controlled from the high level current controlled in step 3 to a low level current. The second output signal can be controlled to maintain the low level current controlled in step 3. In other words, step 4 can control the first output signal to have a low level current, and control the second output signal to have a low level current.

[0290] Steps 1 to 4 are operated as one cycle and may be continuously repeated while the driving sequence of the coil section is operated.

[0291] Table 2 below shows another example of the driving sequence of the coil part.

[0292] [Table 2]

[0293] step First output signal (X) Second output signal (Y) 1 (+) (+) 2 (+) (-) 3 (-) (-) 4 (-) (+)

[0294] As shown in Table 2, refer to Table 1 and Fig. 22The current level of each step of the described first output signal and second output signal is merely an example and can be set in other combinations. To this end, the current level of each step of the first output signal and second output signal can be set by a control signal of a driver on the substrate. Figure 23 to Figure 25 Fig. shows the optical path movement process according to an embodiment. First, in step 0 (neutral sequence) before the driving sequence of the coil part starts, the optical member can be held in a non-tilted state. Fig.24 (a) shows the optical path of the input light in step 0. In Fig.24 , the dots represent the center of the pixel with respect to the input light. In step 0, the center of the pixel with respect to the input light and the center of the pixel with respect to the sensor can match each other. In other words, this means that the optical path of the light passing through the optical member does not change.

[0295] When the driving sequence of the coil part starts, the optical member can be tilted according to step 1. Due to the tilt according to step 1, with respect to the reference plane, the upper left part of the optical member can move upward and the lower right part of the optical member can move downward. The reference plane can refer to the plane on which the optical member is disposed in step 0. Moving upward can refer to moving away from the sensor, and moving downward can refer to moving closer to the sensor. Fig.24 (b) shows the optical path of the input light in step 1. When the optical member is tilted according to step 1, the optical path of the input light can move 0.25 pixels to the left and 0.25 pixels upward from the reference optical path. Then, the camera module according to an embodiment of the present invention can acquire a first frame image from the optical path moved according to step 1.

[0296] After the driving sequence of the coil part according to step 1, the optical member can be tilted according to step 2. Due to the tilt according to step 2, the upper right part of the optical member can move upward with respect to the reference plane, and the lower left part of the optical member can move downward with respect to the reference plane. The edges of the upper left part and the lower right part of the optical member that moved upward or downward in step 1 can move to the reference position. Fig.24 (c) shows the optical path of the input light in step 2. When the optical member is tilted according to step 2, the optical path of the input light can move 0.25 pixels to the right and 0.25 pixels upward from the reference optical path. In step 1, the optical path of the input light can move 0.5 pixels to the right with respect to the optical path of the input light. Then, the camera module according to an embodiment of the present invention can acquire a second frame image from the optical path moved according to step 2.

[0297] After the driving sequence of the coil part according to step 2, the optical member may be tilted according to step 3. Due to the tilting according to step 3, the upper left portion of the optical member may move downward relative to the reference plane, and the lower right portion of the optical member may move upward relative to the reference plane. The edges of the upper right portion and the lower left portion of the optical member moved upward or downward in step 2 may move to the reference position. Fig.24 (d) shows the optical path of the input light in step 3. When the optical member is tilted according to step 3, the optical path of the input light can be moved 0.25 pixels to the right and 0.25 pixels downward from the reference optical path. In step 2, the optical path of the input light can be moved 0.5 pixels downward relative to the optical path of the input light. Then, the camera module according to the embodiment of the present invention can acquire a third frame image from the optical path moved according to step 3.

[0298] After the driving sequence of the coil part according to step 3, the optical member may be tilted according to step 4. Due to the tilting according to step 4, the upper right portion of the optical member may move upward relative to the reference plane, and the lower left portion of the optical member may move downward relative to the reference plane. The edges of the upper left portion and the lower right portion of the optical member moved upward or downward in step 3 may move to the reference position. Fig.24 (e) shows the optical path of the input light in step 4. When the optical member is tilted according to step 4, the optical path of the input light can be moved 0.25 pixels to the left and 0.25 pixels downward from the reference optical path. In step 2, the optical path of the input light can be moved 0.5 pixels to the left relative to the optical path of the input light. Then, the camera module according to the embodiment of the present invention can acquire a fourth frame image from the optical path moved according to step 4.

[0299] Although the embodiments have been described as VCM structures applying magnets and coils, the present invention is not limited thereto, and the present invention can also be implemented by a variable lens, such as a liquid lens capable of controlling the light path by controlling one or two or more liquids (conductive liquid and non-conductive liquid forming a mutual interface), or an optical component configured to control the light path by controlling a film and a liquid.

[0300] Fig.26 is a view used to describe the SR image.

[0301] Fig.26 The process of generating a high-resolution SR image using the first to fourth frame images generated by steps 1 to 4 is shown. Fig.26 In the foregoing, for ease of description, it is assumed that each of the first to fourth frame images is a frame image having a size of 4×4, that is, an image composed of 16 pixels.

[0302] like Fig.26As shown, an SR image can be generated by setting the pixel values ​​of four frames corresponding to the direction of light path movement. In other words, the first to fourth frame images with a size of 4×4 (16 pixels) can be an SR image with a size of 8×8 (64 pixels).

[0303] The process of setting pixel values ​​will be described by assuming that the upper left pixel of the first to fourth frames is pixel 1 and the lower right pixel of the first to fourth frames is pixel 16, and assuming that the upper left pixel of the SR image is pixel 1 and the lower right pixel of the SR image is pixel 64.

[0304] Pixel 1 of the first frame image moved 0.25 pixels to the left and 0.25 pixels upward from the reference optical path may be set to the value of pixel 1 of the SR image. Pixel 2 of the first frame image may be set to the value of pixel 3 of the SR image. Pixel 3 of the first frame image may be set to the value of pixel 5 of the SR image. Pixel 4 of the first frame image may be set to the value of pixel 7 of the SR image.

[0305] Pixel 1 of the second frame image moved 0.25 pixels to the right and 0.25 pixels upward from the reference optical path can be set to the value of pixel 2 of the SR image. Pixel 2 of the second frame image can be set to the value of pixel 4 of the SR image. Pixel 3 of the second frame image can be set to the value of pixel 6 of the SR image. Pixel 4 of the second frame image can be set to the value of pixel 8 of the SR image.

[0306] Pixel 1 of the third frame image, which is moved 0.25 pixels to the right and 0.25 pixels downward from the reference optical path, may be set to the value of pixel 9 of the SR image. Pixel 2 of the third frame image may be set to the value of pixel 11 of the SR image. Pixel 3 of the third frame image may be set to the value of pixel 13 of the SR image. Pixel 4 of the third frame image may be set to the value of pixel 15 of the SR image.

[0307] Pixel 1 of the fourth frame image, which is moved 0.25 pixels to the left and 0.25 pixels downward from the reference optical path, may be set to the value of pixel 10 of the SR image. Pixel 2 of the fourth frame image may be set to the value of pixel 12 of the SR image. Pixel 3 of the fourth frame image may be set to the value of pixel 14 of the SR image. Pixel 4 of the fourth frame image may be set to the value of pixel 16 of the SR image.

[0308] As described above, the pixel values ​​of the first to fourth frame images can be set to generate an SR image. In other words, one image is acquired through four images. Therefore, an image of 100 FPS can be an SR image of 25 FPS.

[0309] Meanwhile, the image synthesis part can be achieved by removing the outermost pixels of the SR image (i.e., Fig.26The SR image may be corrected by using the pixel values ​​of the shadows in the image. The pixel values ​​set at the outermost part of the SR image may include data irrelevant to the information to be captured during the tilting process. The image synthesis part may remove the shadow part of the outermost pixels so as to remove the data irrelevant to the information to be captured.

[0310] Fig. 27 is a perspective view of a camera module according to an embodiment, Fig.28 It is along Fig. 27 The cross-sectional view taken along line HH' in Fig.29 It is along Fig. 27 A cross-sectional view taken along line II' in FIG. Fig.30 It is along Fig. 27 A cross-sectional view taken along line JJ'.

[0311] refer to Figures 27 to 30 As described above, the first protrusion 521 may be positioned in the first diagonal direction in the bracket 500, and may not be positioned in the second diagonal direction. In this embodiment, the side wall 520 of the bracket 500 may have different lengths in the third direction at each corner portion. In other words, the length of the side wall of the bracket 500 at the first corner portion and the third corner portion may be greater than its length at the second corner portion and the fourth corner portion. The first protrusion 521 may, for example, be located only at the first corner portion and the third corner portion in the first diagonal direction.

[0312] In addition, the first protrusion 521 may be disposed to be spaced apart from the upper surface of the housing 100 by a first distance d1 in the third direction. For example, when the protrusion 521a is disposed on the first protrusion 521, the upper surface of the protrusion 521a and the uppermost surface of the housing 100 may be spaced apart from each other by the first distance d1.

[0313] As described above, since the first protrusion 521 is disposed to be spaced apart from the upper surface of the housing 100 (or the upper plate of the cover) by the first distance d1 in the third direction, the bracket 500 may be easily tilted by the first distance d1 in the horizontal direction in space.

[0314] In addition, the bracket 500 can move in a horizontal direction instead of a diagonal direction. In other words, the bracket 500 can move in any one of the first direction and the second direction. Fig.31 The operation of the bracket 500 moving in the horizontal direction is described.

[0315] Even when the bracket 500 moves in the horizontal direction, the bracket 500 may be spaced apart from the first protrusion 521 and the upper surface of the housing 100 (or the upper plate of the cover 900 ) by the first distance d1 .

[0316] At this time, as described above, the maximum length L of the base and the maximum inclination angle θ of the bracket in the diagonal direction can be determined by the horizontal length L1 of the base, the maximum inclination angle θ3 of the bracket in the horizontal direction, and the following Equation 2.

[0317] [Equation 2]

[0318] L*θ=L1*θ3

[0319] The first distance d1 is determined by Equation 3 below.

[0320] [Equation 3]

[0321]

[0322] (Wherein, L refers to the maximum length of the base, θ refers to the maximum tilt angle of the bracket in the diagonal direction, L1 refers to the length of the base in the horizontal direction, and θ3 refers to the maximum tilt angle of the bracket in the horizontal direction).

[0323] The tilt angle of the support in the horizontal direction may correspond to the tilt angle of the support required to perform steps 1 to 4 (which will be described below) in order to obtain the SR image.

[0324] When the first distance is less than When the bracket is tilted, there is a problem that interference occurs between the bracket and the housing, thereby reducing the reliability of the device. For example, the elastic member may be damaged due to overshoot of the elastic member.

[0325] In addition, when the first distance is greater than However, there is a limitation that the overall height of the camera module increases due to the increase in the size of the housing.

[0326] Fig.31 is a view for describing driving of a camera module according to another embodiment, Fig.32 is a view showing a light path moving process according to another embodiment, and Fig.33 is a conceptual diagram conceptually and sequentially illustrating a plurality of images acquired from a camera module according to another embodiment for an SR technique.

[0327] refer to Figure 31 to Figure 33 , the camera module according to this embodiment can acquire multiple images for the SR technology even through horizontal tilting in addition to the above-mentioned diagonal tilting.

[0328] In step 0 (neutral sequence) before the driving sequence of the tilt actuator starts, the optical member (or filter) may be maintained in a non-tilted state. Fig.33 (a) shows the optical path of the input light in step 0. Fig.33In FIG. 1 , a dot represents the center of a pixel relative to input light. In step 0, the center of a pixel relative to input light and the center of a pixel relative to the sensor may match each other. In other words, this means that the optical path of light passing through an optical member (or filter) is not changed.

[0329] When the driving sequence of the tilt actuator starts, the tilt actuator may tilt the optical member (or filter) in the horizontal direction according to step 1. Due to the tilting according to step 1, the left portion of the optical member (or filter) may move downward relative to the reference plane, and the right portion of the optical member (or filter) may move upward relative to the reference plane. The reference plane may refer to a plane on which the optical member (or filter) is disposed in step 0. Moving upward may refer to moving away from the sensor, and moving downward may refer to moving closer to the sensor. Fig.33 (b) shows the optical path of the input light in step 1. When the optical member (or filter) is tilted according to step 1, the optical path of the input light can be moved 0.25 pixels to the right from the reference optical path. The movement of the pixel can be changed according to the SR technology or according to the sensor. In other words, it should be understood that the movement distance of the pixel relative to the reference optical path can be changed by the driving sequence of the tilt actuator.

[0330] First, a first frame of image can be acquired from the light path moved according to step 1.

[0331] After the driving sequence of the tilt actuator according to step 1, the tilt actuator may tilt the optical member (or filter) according to step 2. Due to the tilting according to step 2, the upper portion of the optical member (or filter) may move upward and the lower portion of the optical member (or filter) may move downward relative to the reference plane.

[0332] Fig.33 (c) shows the optical path of the input light in step 2. When the optical member (or filter) is tilted according to step 2, the optical path of the input light can be moved upward by 0.25 pixels from the reference optical path. In step 1, the optical path of the input light can be moved upward by 0.25 pixels relative to the optical path of the input light. Then, the camera module according to an embodiment of the present invention can acquire a second frame image from the optical path moved according to step 2.

[0333] After the driving sequence of the tilt actuator according to step 2, the tilt actuator may tilt the optical member (or filter) according to step 3. Due to the tilting according to step 3, the left side of the optical member (or filter) may move upward, and the right side of the optical member (or filter) may move downward relative to the reference plane. Fig.33(d) shows the optical path of the input light in step 3. When the optical member (or filter) is tilted according to step 3, the optical path of the input light may be moved 0.25 pixels to the left from the reference optical path. In step 2, the optical path of the input light may be moved 0.25 pixels to the left relative to the optical path of the input light. Then, the camera module according to an embodiment of the present invention may acquire a third frame image from the optical path moved according to step 3.

[0334] After the driving sequence of the tilt actuator according to step 3, the tilt actuator may tilt the optical member (or optical filter) according to step 4. Due to the tilting according to step 4, the lower end of the optical member (or optical filter) may move upward relative to the reference plane, and the upper end of the optical member (or optical filter) may move downward relative to the reference plane. Fig.33 (e) shows the optical path of the input light in step 4. When the optical member (or filter) is tilted according to step 4, the optical path of the input light may be moved downward by 0.25 pixels from the reference optical path. In step 2, the optical path of the input light may be moved downward by 0.25 pixels relative to the optical path of the input light. Then, the camera module according to an embodiment of the present invention acquires a fourth frame image from the optical path moved according to step 4. Fig.34 and Fig.35 2 is a view showing a tilt application example of a camera module according to an embodiment.

[0335] refer to Fig.34 and Fig.35 As described above, the camera module according to the embodiment can control the optical member (or filter) to tilt in a diagonal direction or a horizontal direction. The tilt control can be changed according to the image sensor in the camera module.

[0336] In this embodiment, the image sensor may be configured as a structure in which a plurality of pixels are arranged in an array. For example, the image sensor is an active pixel sensor (APS) and may be a complementary metal oxide semiconductor (CMOS) sensor. In addition, the image sensor may be a charge coupled device (CCD) sensor. In addition, the image sensor may include a ToF sensor configured to receive infrared rays reflected from an object to measure distance using time or phase difference.

[0337] The pixel PX may include a first pixel and a second pixel. The first pixel and the second pixel may be alternately arranged in the row direction and the column direction. In other words, based on one first pixel, a plurality of second pixels may be arranged adjacent to the first pixel in the row direction and the column direction. For example, in an image sensor, the first pixel and the second pixel may be arranged in a checkerboard pattern.

[0338] Any one of the first pixel and the second pixel may not receive light. In an embodiment, the plurality of pixels may include an effective area AR and an ineffective area IAR, in which a light receiving element is provided, and the ineffective area IAR is an area other than the effective area. The effective area AR may receive light to generate a predetermined electrical signal, and the ineffective area IAR may be an area that does not generate an electrical signal by receiving light or does not receive light. In other words, the ineffective area IAR may include a situation where an electrical signal is not generated by light even when the light receiving element is located therein. Although described below based on this, as another embodiment, the first pixel and the second pixel may be pixels that receive light having different bands as peak wavelengths. For example, the first pixel may receive light having an infrared band as a peak wavelength. In addition, the second pixel may receive light having a wavelength different from the infrared band as a peak wavelength.

[0339] The first pixel may correspond to the effective area AR, and the second pixel may correspond to the ineffective area IAR. For example, the first pixel may include the effective area AR, but the second pixel may include only the ineffective area IAR in which the effective area AR does not exist. For example, a light receiving element such as a photodiode may be located only in the first pixel and may not be located in the second pixel. Hereinafter, description will be made based on the first pixel receiving light and the second pixel not receiving light.

[0340] In addition, the first pixel may have only the effective area AR, or may have both the effective area AR and the ineffective area IAR. In addition, the effective area AR may exist at various positions within the first pixel. Therefore, the center of the pixel may be different from the center of the effective area.

[0341] In the camera module according to the embodiment, when the active area AR and the inactive area IAR are arranged in a checkerboard pattern as described above, the image sensor can control the optical member relative to the reference point (a) (see Fig.34 ) is horizontally tilted, and no tilt is performed at a reference point (a). The reference point is a point on the path of light incident on the image sensor when the optical member is not tilted.

[0342] In this embodiment, in the optical member (or filter), light incident on the image sensor may move in the order of right (b), up (c), left (d), and down (e) relative to a reference point (a) (see Fig.34 ). At this time, the path of the incident light may move in various orders different from the above order.

[0343] According to this control, when the above-mentioned image sensor composed of pixels PX performs tilting in the horizontal direction, the movement amount can be reduced compared with tilting in the diagonal direction. For example, the movement distance from the reference point when tilting in the horizontal direction can be smaller than the movement distance from the reference point when tilting in the diagonal direction.

[0344] In addition, the pixel PX may include an active area AR and an inactive area IAR. In one pixel PX, the active area AR may be surrounded by the inactive area IAR. In other words, the active area AR may be located at the center of the pixel PX, and the inactive area IAR may be disposed outside the pixel PX.

[0345] In the camera module according to the embodiment, when the image sensor has a form in which the ineffective area IAR surrounds the effective area AR as described above, the image sensor can control the optical member relative to the reference point (a) (see Fig.35 ) is tilted horizontally. The reference point is a point on the path of light incident on the image sensor when the optical member is not tilted.

[0346] In this embodiment, in the optical member, light incident on the image sensor may move in the order of left and top (b), right and top (c), right and bottom (d), and left and bottom (e) relative to a reference point (a) (see Fig.35 ). At this time, the path of the incident light may be moved in various orders different from the above order, and for this purpose, the order of tilting in the diagonal direction may be controlled.

[0347] According to this control, when the above-mentioned image sensor composed of pixels PX is tilted in the diagonal direction, the movement amount can be reduced compared with the tilt in the horizontal direction. In other words, the movement distance from the reference point when tilting in the diagonal direction can be smaller than the movement distance from the reference point when tilting in the horizontal direction.

[0348] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention can be implemented in different specific forms without changing the technical spirit or basic features. Therefore, it should be understood that the above embodiments are illustrative and non-restrictive in all aspects.

Claims

1. A camera module, include: case; a lens module coupled to the housing; a bracket, the bracket being disposed in the housing; an elastic member configured to connect the housing and the bracket; a magnetic portion and an optical member, the magnetic portion and the optical member being coupled to the bracket; and a coil portion, the coil portion facing the magnet portion, wherein the bracket includes a first protrusion extending in the optical axis direction and coupled to the elastic member, The elastic member includes a first coupling portion coupled to one surface of the first protrusion, The first protrusion includes a guide protrusion protruding from the one surface of the first protrusion in the optical axis direction, The guide protrusion is disposed further outward than the elastic member, and The guide protrusion includes a shape corresponding to at least a portion of an outer circumference of the first coupling portion, and The housing includes an inner portion coupled to the lens module, an outer portion coupled to the coil portion, and a connection portion configured to connect the inner portion and the outer portion.

2. The camera module according to claim 1, wherein the bracket include: a base, the base being disposed below the first protrusion; and a side wall disposed between the base and the first protrusion.

3. The camera module according to claim 2, further comprising a cover, the cover being disposed on the housing, and the cover comprising an upper plate and a side plate extending from the upper plate, wherein in an initial state in which current is not applied to the coil portion, the first protrusion is spaced apart from the upper plate by a first distance, and The first distance satisfies the following equation 1, [Equation 1] L×tan(0.75×θ)≤first distance≤L×tan(1.25×θ) Wherein L refers to the maximum length of the base, and θ refers to the maximum tilt angle of the bracket in the diagonal direction.

4. The camera module according to claim 1, wherein the first protrusion further includes a protrusion extending in the optical axis direction, and The guide protrusion is disposed further outward than the protrusion. The camera module of claim 4 , wherein the first coupling portion comprises a hole through which the protrusion passes.

6. The camera module according to claim 4, wherein the protrusion comprises a first protrusion and a second protrusion, and The first protrusion and the second protrusion are positioned in a diagonal direction.

7. The camera module according to claim 1, The outer portion includes a housing protrusion protruding upward, and The elastic member includes a second coupling portion including a hole through which the housing protrusion passes.

8. The camera module according to claim 2, wherein the first protrusion is formed on an upper portion of the side wall, The base includes a base groove disposed on a lower surface, The optical member is disposed in the base groove.

9. The camera module according to claim 8, The base groove includes a coupling groove formed at a corner.

10. The camera module according to claim 9, The camera module further includes an adhesive member positioned in the coupling groove to couple the base and the optical member.

11. The camera module according to claim 1, wherein the magnet portion comprises a first magnet, a second magnet disposed opposite to the first magnet, a third magnet, and a fourth magnet disposed opposite to the third magnet, The coil part includes a first coil facing the first magnet, a second coil facing the second magnet, a third coil facing the third magnet, and a fourth coil facing the fourth magnet.

12. The camera module according to claim 11, The first coil and the third coil have currents applied in different directions, The second coil and the fourth coil have currents applied in different directions, The optical member is tilted in a diagonal direction.

13. The camera module according to claim 12, Current is applied to two coils facing each other among the first coil, the second coil, the third coil, and the fourth coil.

14. A camera device, include: case; a lens module coupled to the housing; A bracket, wherein the bracket is arranged between the housing and the lens module; an elastic member configured to connect the housing and the bracket; a magnetic portion and an optical member, the magnetic portion and the optical member being coupled to the bracket; and a coil portion, the coil portion facing the magnet portion, wherein the bracket can include a first protrusion extending in the optical axis direction and coupled to the elastic member, and the bracket can include a second protrusion protruding downward, and The housing includes an inner portion coupled to the lens module, an outer portion coupled to the coil portion, and a connection portion configured to connect the inner portion and the outer portion.

15. The camera device according to claim 14, The bracket may include a base disposed between the first protrusion and the second protrusion, and the second protrusion may be disposed at a corner of the base.

16. The camera device according to claim 15, Wherein the base can include a base groove disposed on the lower surface.

17. The camera device according to claim 16, The base may further include a coupling groove provided at a lower corner thereof, and the optical member may be provided in the base groove and coupled to the base by an adhesive member.

18. A camera module, include: case; a lens module coupled to the housing; A bracket, the bracket being arranged in the housing and the lens module; an elastic member configured to connect the housing and the bracket; a magnetic portion and an optical member, the magnetic portion and the optical member being coupled to the bracket; and a coil portion, the coil portion facing the magnet portion, The housing may include a housing protrusion and a guiding portion, the housing protrusion being provided at an outer portion and protruding in the optical axis direction, and the guiding portion being disposed more outward than the elastic member and protruding in the optical axis direction. The elastic member may include a second coupling portion coupled to the housing protrusion, and the guiding portion may include a shape corresponding to at least a part of the outer periphery of the second coupling portion. The housing includes an inner portion coupled to the lens module, an outer portion coupled to the coil portion, and a connecting portion configured to connect the inner portion and the outer portion.

19. The camera module according to claim 18. The housing may further include a housing protrusion protruding upward from the outer portion. The guiding portion may be provided on the outer portion and be disposed more outward than the housing protrusion. The elastic member may include a second coupling portion including a hole through which the housing protrusion passes.

Images