Camera module

Abstract

To provide a camera module capable of enhancing the detection rate for movement in an optical axis direction of a lens assembly.SOLUTION: The camera module comprises: a housing 100; a lens assembly 200 arranged in the housing 100; a first driving portion 400 arranged in the lens assembly 200; a second driving portion 500 which is arranged in the housing 100 and which faces the first driving portion 400; a sensor magnets 700 arranged in the lens assembly 200 and extended in an optical axis direction; and a plurality of sensors 800 which are arranged in the housing 100 and which face the sensor magnets 700. The sensor magnets 700 and the lens assembly 200 are overlapped in a first direction that is vertical to the optical axis direction, and in a second direction that is vertical to the optical axis direction and the first direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a camera module.

Background Art

[0002] A camera module performs a function of photographing a subject and storing it as an image or video, and is mounted on a mobile terminal such as a mobile phone, a notebook, a drone, a vehicle, etc. It is mounted on mobile devices such as smartphones, tablet PCs, notebooks, etc., and a very small camera module is built in. Such a camera module can perform an autofocus (AF) function of automatically adjusting the distance between an image sensor and a lens to align the focal length of the lens.

[0003] [[ID=I8]]On the other hand, in recent years, a camera module can perform a zooming function of zooming up or zooming out by increasing or decreasing the magnification of a distant subject through a zoom lens. In recent years, a camera module has adopted an image stabilization (IS) technology to correct or prevent camera shake caused by an unstable fixing device or the movement of a user.

[0004]

[0005]

[0006]

[0007] [[ID=I1]]

[0008] [[ID=A7]] <000004M]] OIS technology is a technique that corrects motion by changing the path of light, and image Image stabilization technology using image sensors corrects motion using both mechanical and electronic methods. It's a technology, and OIS technology is being adopted more frequently.

[0008] On the other hand, for the zooming function in the camera module, the zoom activation It uses an actuator, but the mechanical movement of the actuator causes the range Friction torque is generated during movement, and this friction torque reduces and consumes driving force. Technical problems such as increased power consumption or degraded control characteristics are occurring.

[0009] In particular, the camera module has multiple zoom lens groups. To achieve the best optical characteristics using this method, the alignment between multiple lens groups is crucial. It is preferable that the alignment between the multiple lens groups and the image sensor is good, but the lens groups Decentering, where the center of the interspherical surface deviates from the optical axis, and tilt, a phenomenon of lens tilt. When tilt occurs, the central axis of the lens group and the image sensor are not aligned. This can cause changes in the angle of focus or loss of focus, negatively impacting image quality and resolution.

[0010] On the other hand, the camera module reduces frictional torque resistance when the lens moves for zooming functionality. To increase the isolation distance in the area where friction occurs, zoom movement or zoom During reversal of the lens motion, lens eccentricity and tilt become more severe. A technical problem and contradiction has arisen.

[0011] On the other hand, with image sensors, the higher the number of pixels, the higher the resolution. The size becomes smaller, but as the pixels get smaller, the amount of light they can receive in the same amount of time decreases. Therefore, the higher the resolution of the camera, the slower the shutter speed will be in dark environments. The shaking of the hands makes the image more pronounced.

[0012] This allows you to capture distortion-free images using a high-resolution camera in dark nighttime conditions or when shooting videos. For this reason, OIS functionality has become an essential feature in recent years.

[0013] On the other hand, OIS technology moves the camera lens or image sensor to improve the optical path (Opti). This method corrects image quality by modifying the cal path, and is particularly known as OIS technology. This is achieved by sensing the camera's movement via a gyro sensor. Based on this, the distance the lens and image sensor should move is calculated.

[0014] For example, OIS correction methods include lens movement methods and modular tilting (Tilti There is also the ng method. The lens movement method is used to realign the center of the image sensor with the optical axis. This moves only the lens inside the camera module. On the other hand, module tilting method The formula is a method for moving the entire module, which includes the lens and image sensor.

[0015] In particular, the modular tilting method offers a wider correction range compared to the lens movement method. Therefore, since the focal length between the lens and the image sensor is fixed, image distortion It has the advantage of minimizing waste.

[0016] On the other hand, in the case of a lens movement system, a position recognition sensor is used to sense the position and movement of the lens. , for example, a Hall sensor is used. On the other hand, in the module tilting method, a photo reflector is used to detect the movement of the module. However, for both methods to detect the movement of the camera user, a gyro sensor is used.

[0017] The OIS controller uses the data recognized by the gyro sensor to predict the position where the lens or module should move to compensate for the

[0018] movement of the user. In recent years, according to the technological trend, ultra-thin and ultra-small camera modules are required. However, in ultra-small camera modules, there are spatial constraints for OIS driving, and it is difficult to implement the OIS function applicable to

[0019] normal large cameras. There is a problem that an ultra-thin and ultra-small camera module cannot be realized when OIS driving is applied.

[0020] In particular, in order to achieve the best optical characteristics in the camera module, the alignment between lens groups should be good when OIS is realized through lens movement or module tilting. However, in the conventional OIS technology, when decentration occurs where the spherical center between lens groups deviates from the optical

[0021] Furthermore, conventional OIS technology allows for simultaneous OIS operation and AF or zoom, but Due to the spatial constraints of the camera module and the position of the drive unit in conventional OIS technology, the OIS magnet The net and the magnet for AF or zoom are positioned in close proximity, causing magnetic field interference. This can lead to incorrect OIS drive, causing eccentricity and tilt phenomena. There is a problem.

[0022] Furthermore, conventional OIS technology uses mechanical drive for lens movement and module tilting. It requires a moving mechanism, which presents problems such as a complex structure and high power consumption.

[0023] On the other hand, the content described in the item is not simply the present disclosure. It merely provides background information on the subject and does not constitute conventional technology. [Overview of the Initiative] [Problems that the invention aims to solve]

[0024] The problem that this invention aims to solve is the sensitivity of the lens assembly to movement in the optical axis direction. The objective is to provide a camera module that can improve performance.

[0025] The problem that this invention aims to solve is zooming in a camera module. A lens assembly drive device that can prevent frictional torque generated when each lens group moves via the drive mechanism. The objective is to provide a camera module that includes this.

[0026] Furthermore, the problem that this invention aims to solve is that each range of the camera module via zooming Lens group movement, lens decentering, lens tilt, etc. A lens assembly that can prevent the occurrence of the phenomenon where the center of the lens and the central axis of the image sensor do not coincide. The objective is to provide a drive device and a camera module including the same.

[0027] Furthermore, the problem that this invention aims to solve is the development of ultra-slim and ultra-compact lens assemblies. The objective is to provide a moving device and a camera module including the same.

[0028] Furthermore, the problem that the present invention aims to solve is the lens assembly of the optical system when realizing OIS. A lens assembly that eliminates the size limitations of lenses and ensures sufficient light output. The objective is to provide a drive device and a camera module including the same.

[0029] Furthermore, the problems that this invention aims to solve are eccentricity (decent) and tilt when OIS is achieved. Lens acetate that minimizes the occurrence of tilt and produces the best optical characteristics. The objective is to provide a hub drive device and a camera module including the same.

[0030] Furthermore, the problem that this invention aims to solve is the magnet for AF or zoom when OIS is achieved. A lens assembly drive device and a camera module including the same that can prevent magnetic field interference. The objective is to provide.

[0031] Furthermore, the problem that this invention aims to solve is the lens assembly that enables OIS with low power consumption. The objective is to provide a hub drive device and a camera module including the same. [Means for solving the problem]

[0032] A camera module relating to one aspect of the present invention for achieving the above objectives is: Housing; Lens assembly disposed in the housing; Lens assembly A first drive unit positioned in the housing; a second drive unit positioned in the housing and facing the first drive unit. Moving part; Sensor magnet arranged in the lens assembly and extending in the optical axis direction a set; and a plurality of sensors arranged in the housing and facing the sensor magnet The sensor magnet is perpendicular to the lens assembly in the optical axis direction. The first direction is such that the optical axis and the second direction is perpendicular to the first direction overlap It overlaps.

[0033] Furthermore, the length of the optical axis of the sensor magnet is the movement of the lens assembly. It's better if it's bigger than the Trok.

[0034] Furthermore, the plurality of sensors are separated from the first sensor in the optical axis direction. It can include a second, separating sensor.

[0035] Furthermore, the distance between the first sensor and the second sensor and the lens assembly The total length of the movement stroke is the length of the sensor magnet in the optical axis direction. It can handle various situations.

[0036] Furthermore, a first yaw is positioned between the lens assembly and the sensor magnet. It can include a 'k'.

[0037] Furthermore, the first yoke is the surface in the sensor magnet that faces the plurality of sensors. It can enclose the surface excluding the part that is missing.

[0038] Furthermore, the lens assembly comprises a first lens assembly and the first lens assembly The breech includes a second lens assembly located on one side, the sensor magnet being A first sensor magnet is positioned in the first lens assembly, and the second lens assembly Includes a second sensor magnet positioned in the semble, and the first sensor magnet and The second sensor magnets are separated from each other in a first direction perpendicular to the optical axis, corresponding to each other. It can have a length.

[0039] Furthermore, the first drive unit is configured with the first-first drive unit located in the first lens assembly. , including first and second drive units disposed in the second lens assembly, the second drive unit is front The 1-1 drive unit is opposed to the 2-1 drive unit, and the 2-2 drive unit is opposed to the 1-2 drive unit. It may include a drive unit.

[0040] Furthermore, it includes a second yoke positioned between the lens assembly and the first drive unit. The second yoke is positioned between the first drive unit and the first lens assembly. The second-first yoke is positioned between the first-second drive unit and the second lens assembly. It includes the second-to-second yoke.

[0041] Furthermore, the first lens assembly includes a first lens barrel on which the first lens group is arranged and , including a first side surface located on one side of the first lens barrel, the second lens assembly - is a second lens barrel in which the second lens group is arranged, and is arranged on the other side of the second lens barrel The first drive unit is located on the first side, and the first drive unit is located on the first side. -2 The drive unit is located on the second side, and the first sensor magnet is located on the first side The second sensor magnet is positioned in the space between the lens barrel and the first side surface, It can be positioned in the space between the second lens barrel and the second side surface.

[0042] Furthermore, the first lens barrel and the second lens barrel are each formed in a cylindrical shape. The first and second sides can each be formed in the shape of a rectangular plate.

[0043] Furthermore, it is positioned in the housing and in contact with the first side surface of the first lens assembly. a first guide portion that guides the movement of the first lens assembly in the optical axis direction; and front The housing is positioned and in contact with the second side of the second lens assembly 2. The lens assembly may include a second guide portion that guides the movement of the lens assembly in the optical axis direction. .

[0044] Furthermore, the 2-1 drive unit is positioned in the first guide unit, and the 2-2 drive unit is , it can be placed in the second guide section.

[0045] Furthermore, the length of the optical axis direction of the first side surface of the first lens assembly is the length of the first lens The sum of the length in the optical axis direction of the second lens barrel and the length in the optical axis direction of the second lens barrel is greater than the sum of the lengths in the optical axis direction of the second lens barrel. The length of the second side of the second lens assembly in the optical axis direction is the length of the first lens barrel The length in the optical axis direction may be greater than the sum of the length in the optical axis direction of the first lens barrel and the length in the optical axis direction of the second lens barrel.

[0046] Furthermore, the plurality of sensors include the first sensor facing the first sensor magnet. - The 1-1 sensor and the 2-1 sensor which are separated in the direction of the optical axis, and the 2- A first and second sensor facing the sensor magnet, and the first and second sensors and the optical axis direction. It can include a second sensor located at a distance from the first sensor.

[0047] Furthermore, the lens assembly is positioned on the other side of the first lens assembly, Includes a third lens assembly coupled to the housing, and the first lens assembly - and the second lens assembly are in the optical axis direction relative to the third lens assembly, respectively. You can move to this location to enable the zooming function.

[0048] Furthermore, the housing includes a substrate, and the plurality of sensors are arranged on the substrate. It can be placed there.

[0049] Furthermore, the distance between the sensor magnet and the center of the lens assembly is This distance may be shorter than the distance between the first drive unit and the center of the lens assembly.

[0050] A camera module relating to one aspect of the present invention for achieving the above objectives is: Housing; Lens assembly disposed in the housing; Lens assembly A first drive unit positioned in the housing; a second drive unit positioned in the housing and facing the first drive unit. Moving part; Sensor magnet arranged in the lens assembly and extending in the optical axis direction a set; and a plurality of sensors arranged in the housing and facing the sensor magnet The plurality of sensors include the first sensor and the optical axis Includes a second sensor that moves away in the direction, and the distance between the first sensor and the second sensor The sum of the movement strokes of the lens assembly and the optical axis of the sensor magnet is It can accommodate different lengths.

[0051] A camera module relating to one aspect of the present invention for achieving the above objectives is: Housing; Lens assembly disposed in the housing; Lens assembly A first drive unit positioned in the housing; a second drive unit positioned in the housing and facing the first drive unit. Moving part; Sensor magnet arranged in the lens assembly and extending in the optical axis direction a set; and a plurality of sensors arranged in the housing and facing the sensor magnet The plurality of sensors include the first sensor and the optical axis It includes a second sensor that is separated in the direction, and the length of the sensor magnet in the optical axis direction is, The movement stroke is greater than that of the lens assembly, and the first sensor and the second sensor The distance between the sensor and the lens assembly may be greater than the movement stroke of the lens assembly.

[0052] A lens assembly according to one aspect of the present invention for achieving the aforementioned objectives. The moving device includes a housing; a first lens assembly disposed within the housing; and the first A second lens assembly positioned on one side of the lens assembly; positioned in the housing. First and second drive units; arranged in the first lens assembly and the first drive unit Opposing third drive unit; arranged in the second lens assembly and facing the second drive unit A fourth drive unit; and first and second guide units arranged in the housing, the first The lens assembly has a first side facing the first guide portion and a second side facing the second guide portion. Including a second side facing the first guide portion, the second lens assembly has a second side facing the first guide portion. The first lens assembly includes one side and a second side facing the second guide portion. The length of the first side surface in the optical axis direction is the optical axis direction of the first side surface of the second lens assembly. The length in the direction is longer than the length in the direction, and the length in the optical axis direction of the second side of the first lens assembly is The length of the second side of the second lens assembly may be shorter than the length in the optical axis direction.

[0053] Furthermore, the first guide section and the second guide section may be symmetrical with respect to the optical axis.

[0054] Furthermore, the first guide section comprises a 1-1 guide section and a 1-2 guide section that are spaced apart from each other. The second guide portion includes a second-first guide portion and a second-second guide portion that are spaced apart from each other. It is possible.

[0055] Furthermore, the length of the 1-1 guide portion in the direction perpendicular to the optical axis is the length of the 1-2 The length of the guide section may be longer than the length in the direction perpendicular to the optical axis.

[0056] Furthermore, the length of the 2-1 guide portion in the direction perpendicular to the optical axis is the length of the 2-2 The length of the guide section may be longer than the length in the direction perpendicular to the optical axis.

[0057] Furthermore, the first guide portion is disposed between the first side surface of the first lens assembly. A first guide ball; the second guide portion and the second side of the first lens assembly. A second guide ball positioned between the first guide portion and the second lens assembly. A third guide ball positioned between the first side surface of the second guide portion and the second It may include a fourth guide ball positioned between the second side surface of the lens assembly. Cut.

[0058] Furthermore, the first guide portion contacts the first guide ball and the third guide ball. The second guide portion includes the first groove, and the second guide ball and the fourth guide ball The first side of the first lens assembly includes a second groove that contacts the first guide The second side of the first lens assembly includes a third groove that contacts the doball, and the The first side of the second lens assembly includes a fourth groove that contacts the second guide ball. It includes a fifth groove that contacts the third guide ball, and the second lens assembly The second side surface may include a sixth groove that contacts the fourth guide ball.

[0059] Furthermore, the first groove is formed in the 1-1 guide portion, and the 1-2 The guide portion includes first and second grooves, and the first guide ball has the first groove and the second groove. A first-first guide ball that makes point contact with the first-second groove and a first-second guide that makes point contact with the first-second groove It can hold a ball.

[0060] Furthermore, the 1-1 groove is formed in a "V" shape, and the 1-2 groove is formed in a "U" shape. It can be done.

[0061] Furthermore, the third groove has a third-first groove facing the first-first groove and a groove facing the first-second groove. It includes a 3-2 groove that meets the 3-1 groove, and the 3-1 groove contacts the 1-1 guide ball at two points. The 3-2 groove can then contact the 1-2 guide ball at two points.

[0062] Furthermore, the 3-1 and 3-2 grooves can be formed in a "V" shape.

[0063] Furthermore, the first drive unit is positioned between the 1-1 groove and the 1-2 groove. can.

[0064] Furthermore, the first and second guide portions are formed integrally with the inner surface of the housing. It is possible.

[0065] Furthermore, the housing has openings on its top and bottom surfaces, and the first and second lens assemblies Lee can be exposed to the outside.

[0066] The assembly also includes a third lens assembly positioned on one side of the second lens assembly. After the third lens assembly is first assembled to the side of the housing, The first and second lens assemblies can be placed inside the housing.

[0067] Furthermore, the first lens assembly includes a first lens barrel containing a plurality of first holes, The second lens assembly includes a first lens portion disposed on the first lens barrel, and the second lens assembly is a second lens barrel including a plurality of second holes, and a second lens barrel positioned in the second lens barrel The lens portion is included, and the first and second lens assemblies are assembled in the housing. In this state, the first and second lens assemblies are positioned on the upper and lower surfaces of the housing. The alignment is performed via the aforementioned plurality of first and second holes.

[0068] Furthermore, the first and second drive units are solenoid coils, and the third and fourth drive units are, It could be a magnet.

[0069] Furthermore, the length of the solenoid coil in the optical axis direction is greater than the length of the magnet in the optical axis direction. The length of the solenoid coil in the direction perpendicular to the optical axis is the length of the magnet The length of the optical axis may be longer than the length of the optical axis perpendicular to the optical axis.

[0070] Furthermore, the magnet is magnetized to the first polarity on the surface facing the solenoid coil. The surface that does not face the solenoid coil is magnetized to the second polarity.

[0071] A camera module relating to one aspect of the present invention for achieving the above objectives is: Housing; first lens assembly disposed in the housing; first lens assembly A second lens assembly positioned on one side of the hood; a first lens assembly positioned in the housing and a second drive unit; a second drive unit disposed in the first lens assembly and facing the first drive unit 3. Drive unit; a fourth drive unit located in the second lens assembly and facing the second drive unit. The first lens assembly includes a part and first and second guide parts disposed in the housing. The hub has a first side facing the first guide portion and a second side facing the second guide portion. Including the side surface, the second lens assembly has a first side surface facing the first guide portion, Including the second side surface facing the second guide portion, the first side of the first lens assembly The length of the surface in the optical axis direction is equal to the length of the first side surface of the second lens assembly in the optical axis direction. The length of the optical axis of the first side of the first lens assembly and the length of the second lens The sum of the lengths of the optical axis direction of the first side of the assembly is The length of the second side in the optical axis direction and the optical axis direction of the second side of the second lens assembly It corresponds to the sum of the lengths. [Effects of the Invention]

[0072] This embodiment improves the sensitivity to movement of the lens assembly in the optical axis direction. We can provide a camera module that can do this.

[0073] In this embodiment, each lens via zooming in the camera module A lens assembly drive device that can prevent friction torque generated during group movement, and a device including the same. We can provide a mera module.

[0074] In this embodiment, when each lens group moves via zooming in the camera module, lens polarization The center of the lens and the image sensor, such as the center (decenter) and lens tilt. A lens assembly drive device that can prevent the occurrence of the phenomenon where the central axis of the lens does not coincide, and A camera module including this can be provided.

[0075] Furthermore, this embodiment provides an ultra-slim and ultra-compact lens assembly drive device and We can provide a camera module that includes this feature.

[0076] Furthermore, this embodiment allows for the size of the lens in the lens assembly of the optical system when OIS is realized. A lens assembly drive device and the A camera module including this can be provided.

[0077] Furthermore, this embodiment shows that when OIS is achieved, eccentricity and tilt are not present. A lens assembly drive mechanism that minimizes the occurrence of distortion and produces the best optical characteristics. We can also provide a camera module that includes this.

[0078] Furthermore, this embodiment prevents magnetic field interference with the AF or zoom magnet when OIS is implemented. To provide a lens assembly drive device that can stop and a camera module including the same. can.

[0079] Furthermore, this embodiment provides a lens assembly drive device that enables OIS with low power consumption. We can also provide a camera module that includes this. [Brief explanation of the drawing]

[0080] [Figure 1] This is a perspective view of a camera module according to the first embodiment of the present invention. [Figure 2] This is an exploded perspective view of a camera module according to the first embodiment of the present invention. [Figure 3] This is a bottom view of a partial configuration of a camera module according to the first embodiment of the present invention. [Figure 4] This is a front view of a partial configuration of a camera module according to the first embodiment of the present invention. [Figure 5] This graph shows a simulation of the magnetic flux of a camera module according to the first embodiment of the present invention. [Figure 6] This graph shows measurement data for the sensor magnet of a camera module according to the first embodiment of the present invention. [Figure 7] This graph shows the output values ​​corresponding to the length of the sensor magnet of the camera module according to the first embodiment of the present invention. [Figure 8] This is a perspective view of a camera module according to a second embodiment of the present invention. [Figure 9] This is an exploded perspective view of a camera module according to a second embodiment of the present invention. [Figure 10] This is a perspective view of a partial configuration of a camera module according to a second embodiment of the present invention. [Figure 11] This is a perspective view of a partial configuration of a camera module according to a second embodiment of the present invention. [Figure 12] This is a cross-sectional view of a part of the camera module according to a second embodiment of the present invention. [Figure 13] This is an enlarged view of section A in Figure 12. [Figure 14] This is an enlarged view of section B in Figure 12. [Figure 15]This is a cross-sectional view of a part of the camera module according to a second embodiment of the present invention. [Figure 16] This is a cross-sectional view of a part of the camera module according to a second embodiment of the present invention. [Figure 17] This is a molding work diagram of a part of the camera module according to a second embodiment of the present invention. [Figure 18] This is an operational diagram of a part of the camera module according to a second embodiment of the present invention. [Figure 19] This is an operational diagram of a part of the camera module according to a second embodiment of the present invention. [Figure 20] This is a drawing illustrating the alignment process of a camera module according to a second embodiment of the present invention. [Modes for carrying out the invention]

[0081] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0082] However, the technical concept of the present invention is not limited to the embodiments described, but rather applies to all of them. It can be embodied in various different forms, and within the scope of the technical concept of the present invention, It is possible to selectively combine or replace one or more of its constituent elements.

[0083] Furthermore, the terms used in the embodiments of this invention (including technical and scientific terms) are not explicitly defined. Unless otherwise stated, this invention is not intended for a person with ordinary skill in the art to which this invention pertains. Terms that are commonly used, interpreted as having a generally understandable meaning, and that are predefined terms, are generally understood and interpreted. It should be possible to interpret its meaning by considering its contextual significance in relation to the relevant technologies.

[0084] Furthermore, the terminology used in the embodiments of this invention is for the purpose of explaining the embodiments, and is not applicable to this invention. This is not intended to restrict the light.

[0085] In this specification, the singular form can also include the plural form unless otherwise specified in the text, and "A and (and) When it says "at least one (or more than one) from B and C", the combinations of A, B, and C are... It can include one or more of all possible combinations.

[0086] Furthermore, in describing the components of the embodiments of the present invention, the first, second, A, B, (a), (b) and other terms may be used. Such terms distinguish their constituent elements from other constituent elements. It merely serves to distinguish between components, and the term does not imply the essence, order, or sequence of those components. It's not limited to just one thing.

[0087] Furthermore, it is stated that one component is "linked," "joined," or "connected" to another component. If that happens, that component is directly "connected," "joined," or " Not only when "connected", but also when there is another connection between that component and another component. This can also include cases where components are "linked," "joined," or "connected."

[0088] Furthermore, it is stated that each component is formed or positioned "above" or "below". When placed, "above" or "below" means that the two components are directly connected to each other. Not only when they come into contact, but also when one or more other components are formed between the two components. This includes cases where it is positioned. Also, cases where it is expressed as "above" or "below". Based on a single component, the meaning can include not only an upward direction but also a downward direction.

[0089] The term "optical axis direction" used below refers to the direction of each lens group coupled to the lens assembly drive device. This is defined as the optical axis direction. On the other hand, "optical axis direction" corresponds to "vertical direction," "z-axis direction," etc. It is possible.

[0090] The following describes a camera module according to the first embodiment of the present invention, based on the attached drawings. I will explain in more detail.

[0091] Figure 1 is a perspective view of a camera module according to the first embodiment of the present invention. Figure 2 is the present invention. Figure 3 shows an exploded perspective view of a camera module according to the first embodiment of the present invention. Figure 4 is a bottom view of a partial configuration of the camera module relating to the present invention. This is a front view of a part of the camera module. Figure 5 shows a camera according to the first embodiment of the present invention. This is a graph showing the magnetic flux simulation of the module. Figure 6 shows the first embodiment of the present invention. This is a graph showing the measurement data of the sensor magnet of the camera module in question. Figure 7 shows Output value corresponding to the length of the sensor magnet of the camera module according to the first embodiment of the present invention This is a graph showing the following. Referring to Figures 1 to 4, the camera module according to the first embodiment of the present invention The first is 10, which consists of a housing 100, a lens assembly 200, a guide section 300, and The drive unit 400, the second drive unit 500, the circuit board 600, the sensor magnet 700, and It may include Sensor 800, but this can be implemented with the exception of some configurations. And there is no need to exclude any other additional configurations.

[0092] The camera module 10 may include a housing 100. This allows the camera module 10 to be formed. The housing 100 is not exposed inside It may have a hexahedral shape. The housing 100 has its front and rear surfaces open to the outside. This is possible. At least a portion of the side of the housing 100 can be opened to the outside. The housing 100 includes a lens assembly 200, a guide section 300, and a first drive section. 400, second drive unit 500, circuit board 600, sensor magnet 700, sensor 800 can be placed.

[0093] The camera module 10 may include a lens assembly 200. The 200 can be placed in the housing 100. Lens assembly 2 00 is directed in the optical axis direction by the electromagnetic interaction between the first drive unit 400 and the second drive unit 500. It can be moved. Here, the optical axis direction is the direction in which the lens assembly 200 is located. This refers to the optical axis direction of the lenses.

[0094] The lens assembly 200 may include the first lens assembly 210. 1. Lens assembly 210 can be placed inside housing 100. Lens assembly 210 is connected to the second and third lens assemblies 220, 230 and Alignment is possible. The first lens assembly 210 is the second lens It can be positioned between assembly 220 and the third lens assembly 230. The first lens assembly 210 comprises the first-first drive unit 420 and the second-first drive unit 520. It can be moved along the optical axis due to electromagnetic interaction. First lens assembly 2 The optical axis movement of 10 can be guided by the first guide section 320.

[0095] The first lens assembly 210 includes a first lens barrel 212 on which the first lens group is arranged. This may include a first side surface 214 positioned on one side of the first lens barrel 212. The first lens barrel 212 of the lens assembly 210 is formed in a cylindrical shape. Yes, it is possible. The first side surface 214 of the first lens assembly 210 is formed in a square plate shape. This is possible. On the first side surface 214 of the first lens assembly 210, the first-1 drive unit 42 0 can be placed. The first side surface 214 of the first lens assembly 210 is outward. A first protruding portion 216 can be formed to protrude from the first lens assembly 210. The first projection 216 of the first side surface 214 contacts the first groove of the first guide portion 320 and moves toward the optical axis. Directional movement can be guided. The length of the first side surface 214 of the first lens assembly 210 in the optical axis direction The distance is the length of the optical axis direction of the first lens barrel 212 and the optical axis direction of the second lens barrel 222. It may be greater than the sum of the lengths.

[0096] The lens assembly 200 may include a second lens assembly 220. The second lens assembly 220 can be placed inside the housing. Lens assembly 220 is aligned with the first and third lens assemblies 210, 230. Alignment is possible. The second lens assembly 220 is the first lens assembly The second lens assembly 220 can be positioned behind the breech 210. Movement in the optical axis direction due to electromagnetic interaction between the -2 drive unit 410 and the 2-2 drive unit 510. The second lens assembly 220 is aligned with the optical axis by the second guide portion 310. Directional movement can be guided.

[0097] The second lens assembly 220 includes a second lens barrel 222 in which the second lens group is arranged. The second lens barrel 222 includes a second side surface 224 located on the other side. The second lens barrel 222 of the 2-lens assembly 220 is formed in a cylindrical shape. Yes, it is possible. The second side surface 224 of the second lens assembly 220 is formed in a square plate shape. This is possible. The second side surface 224 of the second lens assembly 220 has the first-to-second drive unit 31 0 can be placed. The second side 224 of the second lens assembly 220 is outward A second protrusion can be formed that protrudes from the second lens assembly 220. The second protrusion on the side surface 224 contacts the second groove 312 of the second guide portion 310 and moves in the optical axis direction. This can guide the first side 214 of the first lens assembly 210 and the second lens assembly The second sides 224 of Lee 220 are positioned in opposite directions to improve space efficiency. It is possible. The length of the optical axis direction of the second side surface 224 of the second lens assembly 220 is The length of the optical axis direction of the first lens barrel 212 and the length of the optical axis direction of the second lens barrel 222 It can be greater than the total.

[0098] The lens assembly 200 may include a third lens assembly 230. The third lens assembly 230 can be placed in the housing 100. The lens assembly 230 can be coupled to the housing 100. Third lens assembly The 'Nbury 230' can be coupled to the front of the housing. Third lens assembly -230 can be positioned in front of the first lens assembly 210. The lens assembly 230 may include a third lens group. The third lens group of 30 is aligned with the first and second lens groups in terms of optical axis. t) Yes, it is possible. In the first embodiment of the present invention, the third lens assembly 230 is the housing 100 The first and second lens assemblies 210 and 220 are fixed in place and move in the optical axis direction, respectively. This enables the implementation of a zooming function.

[0099] The camera module 10 may include a guide section 300. The guide section 300 is It can be positioned on the wedge 100. The guide section 300 is integrated with the housing 100. It can be formed by the following. The guide section 300 is manufactured separately and assembled into the housing 100. It can be assembled. Guide section 300. First and second lens assemblies 210 The guide section 300 can guide the movement in the optical axis direction of 220. 00 can be placed there.

[0100] The guide section 300 may include a first guide section 320. The first guide section 320 is It can be placed in the housing 100. The first guide portion 320 is in the housing 100 It can be fixed in place. The first guide portion 320 is formed integrally with the housing 100. The first guide section 320 is connected to the first and second lens assemblies 210 and 22 It can be positioned on one side of 0. The first guide portion 320 may include the first groove. The first groove of the first guide portion 320 is the first side surface 214 of the first lens assembly 210. 1. Contacts the protrusion 216 and guides the optical axis movement of the first lens assembly 210. The second-first drive unit 520 can be arranged in the first guide unit 320. The guide section 300 may include a second guide section 310. The second guide section 310 can be placed in the housing 10. It can be fixed to 0. The second guide portion 310 is formed integrally with the housing 100. The second guide section 310 connects the first and second lens assemblies 210, 2 The other of the 20 can be positioned. The second guide portion 310 includes the second groove 312. This is possible. The second groove 312 of the second guide section 310 is the second of the second lens assembly 220. The second protrusion on the side surface 224 contacts the second lens assembly 220, thereby controlling its movement in the optical axis direction. It can be idled. The second guide section 310 has the second-second drive section 510 positioned there. It is possible.

[0101] The camera module 10 may include a first drive unit 400. , can be placed in the lens assembly 200. The first drive unit 400 is first and The second lens assemblies 210 and 220 can be positioned. The first drive unit 400 is , it may include a magnet. The first drive unit 400 is opposite the second drive unit 500. This is possible. The first drive unit 400 interacts with the second drive unit 500 via electromagnetic interaction. Moving the lens assembly 210 and the second lens assembly 220 in the optical axis direction. It is possible.

[0102] The first drive unit 400 may include the first-first drive unit 420. 0 can be placed in the first lens assembly 210. 1-1 drive unit 420 It can be positioned on the first side surface 214 of the first lens assembly 210. 1. The drive unit 420 is magnetized with the first polarity at the front and the second polarity at the rear. 1-1 The drive unit 420 can be formed in a hexahedral shape. The first drive unit 420 is second -1 It can be positioned opposite the drive unit 520. The first-1 drive unit 420 is The first lens assembly 210 is subjected to electromagnetic interaction with the second-first drive unit 520. It can be moved along the optical axis.

[0103] The first drive unit 400 may include a first-second drive unit 410. 0 can be placed in the second lens assembly 220. First-second drive unit 410 It can be positioned on the second side 224 of the second lens assembly 220. The drive unit 410 is magnetized with the first polarity at the front and the second polarity at the rear. 1-2 The drive unit 410 can be formed in a hexahedral shape. The first and second drive units 410 are: -2 It can be positioned opposite the drive unit 510. The first and second drive units 410 are via electromagnetic interaction with the second-2 drive unit 510, the second lens assembly 220 It can be moved along the optical axis.

[0104] The camera module 10 may include the first yokes 430 and 440. 430, 440 are the first drive unit 400 and the first and second lens assemblies 210, 220 They can be positioned between them. The first yokes 430 and 440 are the magnetic of the first drive unit 400. This can prevent information from being leaked.

[0105] The first yoke 430, 440 can include the 1-1 yoke 440. The 440 is positioned between the first lens assembly 210 and the 1-1 drive unit 420. The first yoke 440 is positioned on the first lens assembly 210. It is possible. The first yoke 440 is the first side 21 of the first lens assembly 210. It can be coupled to 4. The first yoke 440 is the first lens assembly 210 It can be snap-fit ​​coupled to the first side surface 214. The first-first yoke 440 can enclose at least two sides of the first-first drive unit 420. This prevents the magnetic field of the 1-1 drive unit 420 from leaking out of the 1-1 yoke 440. It is possible.

[0106] The first yoke 430, 440 can include the first-second yoke 430. The 430 is positioned between the second lens assembly 220 and the first-to-second drive unit 410. The first and second yokes 430 are positioned on the second lens assembly 220. It is possible. The first-second yoke 430 is on the second side 22 of the second lens assembly 220. It can be coupled to 4. The first and second yokes 430 are connected to the second lens assembly 220. It can be snap-fit ​​coupled to the second side surface 224. The first- and second yokes 430 can enclose at least two sides of the first- and second drive units 410. This prevents the magnetic field of the first-second yoke 430 from leaking out of the first-second drive unit 410. It is possible.

[0107] The camera module 10 may include a second drive unit 500. The second drive unit 500 is located in the guide unit 300. It can be arranged. The second drive unit 500 may include a coil. 500 can be coupled to the substrate 600. The second drive unit 500 is connected to the substrate 600. It can receive an electric current. The second drive unit 500 is opposite the first drive unit 400. This is possible. The second drive unit 500 interacts with the first drive unit 400 via electromagnetic interaction. Moving the lens assembly 210 and the second lens assembly 220 in the optical axis direction. It is possible.

[0108] The second drive unit 500 may include the second-first drive unit 520. 0 can be placed in the first guide section 320. The second-first drive section 520 is the first guide section It can be coupled to the id section 320. The second-first drive unit 520 is coupled to the substrate 600. The second-first drive unit 520 can be electrically connected to the substrate 600. The second-first drive unit 520 can be formed in the shape of a "mouth". 20 may include a coil. The second-first drive unit 520 is connected to the first-first drive unit 420. It can be opposed. When current is supplied to the second-first drive unit 520, the second-first drive unit 520 can interact electromagnetically with the first-first drive unit 420.

[0109] The second drive unit 500 may include a second-second drive unit 510. 0 can be placed in the second guide section 310. The second-2 drive section 510 is the second guide section It can be coupled to the id section 310. The second-second drive section 510 is coupled to the substrate 600. The second-second drive unit 510 can be electrically connected to the substrate 600. The second-second drive unit 510 can be formed in the shape of a "mouth". 510 may include a coil. The second-second drive unit 510 is the first-second drive unit 410 It can be opposed to this. When current is supplied to the second-second drive unit 510, the second-second drive The part 510 can interact electromagnetically with the first and second drive units 410.

[0110] The camera module 10 may include second yokes 530 and 540. 530 and 540 can be positioned outside the second drive unit 500. Second yoke 53 0, 540 can be coupled to the substrate 600. The second yoke 530, 540 is based It can be snap-fit-connected to plate 600. Second yaw Components 530 and 540 can prevent leakage of the electric field from the second drive unit 500.

[0111] The second yoke 530, 540 can include the second-first yoke 540. The yoke 540 can be coupled to the substrate 600. The second-first yoke 540 is the second- 1. The outside of the drive unit 520 can be enclosed. As a result, the second-1 yoke 540 is second- 1. This prevents leakage of the electric field from the drive unit 520.

[0112] The second yoke 530, 540 can include the second-second yoke 530. The yoke 530 can be coupled to the substrate 600. The second yoke 530 is the second 2. The outside of the drive unit 510 can be enclosed. As a result, the second-2 yoke 530 is second- 2. This prevents leakage of the electric field from the drive unit 510.

[0113] The camera module 10 may include a circuit board 600. The circuit board 600 is a housing It can be placed at 100. The substrate 600 has a second drive unit 500 and a second yoke 53 0 and 540 can be combined. A sensor 800 is placed on the substrate 600. This is possible. The circuit board 600 is electrically connected to the second drive unit 500 and the sensor 800. It can supply current. The substrate 600 is a printed circuit board (PCB). Circuit boards can include flexible printers. The board 600 is a flexible printer. Flexible Printed Circuit Board (FPCB) d) may be included.

[0114] The camera module 10 can include a sensor magnet 700. Net 700 can be placed in lens assembly 200. Sensor magnet The 700 can be placed in the first and second lens assemblies 210 and 220. The sensor magnet 700 can be extended in the direction of the optical axis. The Gnet 700 is perpendicular to the optical axis with the first and second lens assemblies 210, 220. A first direction overlaps with a second direction perpendicular to the optical axis and the first direction. (rlap) is performed. Between the sensor magnet 700 and the lens assembly 200 and the center The distance may be shorter than the distance between the center of the first drive unit 400 and the center of the lens assembly 200. Here, the center of the lens assembly 200 is the central region of the first lens barrel 212 and This refers to the central region of the second lens barrel 222.

[0115] The sensor magnet 700 can be paired with the Hall sensor 800. - The length of the magnet 700 in the optical axis direction is the length of the first and second lens assemblies 210, 22 It can be 0 and greater than the optical axis movement stroke. Sensor Magnet 7 The length of the optical axis of 00 is the length of the first sensors 812, 822 and the second sensors 814, 824. The distance and the optical axis movement stroke of the first and second lens assemblies 210 and 220 It can be measured and corresponded to. Specifically, the length of the optical axis direction of the sensor magnet 700 is, The distance between the first sensors 812, 822 and the second sensors 814, 824, and the first and second ranges The lengths of the assemblies 210 and 220 are within 5% of the total optical axis movement stroke. This makes it possible to improve the detection rate of the sensor magnet 700. Yes, it is possible. In the first embodiment of the present invention, the movement of the first and second lens assemblies 210 and 220 Troke refers to the axial travel distance of the first and second lens assemblies 210 and 220. It tastes good.

[0116] The sensor magnet 700 may include the first sensor magnet 720. The sensor magnet 720 can be placed in the first lens assembly 210. The first sensor magnet 720 is perpendicular to the second sensor magnet 710 in the optical axis direction. It can be separated in the first direction. The first sensor magnet 720 is the second sensor -The magnet 710 can have corresponding lengths to each other. First sensor magnet The T720 is positioned in the space between the first lens barrel 212 and the first side surface 214. Yes, it is possible. This can improve space efficiency. First sensor magnet 7 The distance between 20 and the central region of the first lens barrel 212 is between the first drive unit 420 and the first The distance between the lens barrel 212 and the central region may be shorter. First sensor magnet 7 20 can be paired with multiple sensors 820. Specifically, the first sensor magnet The 720 can be positioned opposite the 1st-1 sensor 822 and the 2nd-1 sensor 824. Cut.

[0117] The sensor magnet 700 may include a second sensor magnet 710. The second sensor magnet 710 can be placed in the second lens assembly 220. The second sensor magnet 710 is perpendicular to the first sensor magnet 720 in the optical axis direction. It can be separated in the first direction. The second sensor magnet 710 is the first sensor -The magnet 720 and the second sensor magnet can have corresponding lengths. The T710 can be positioned between the second lens barrel 222 and the second side 224. This improves space efficiency. The second sensor magnet 710 and The distance between the central region of the second lens barrel 222 and the first-to-second drive unit 410 and the second lens The distance between the central region of the barrel 222 may be shorter than the distance between the second sensor magnet 710 and the central region of the barrel 222. It can be opposed to multiple sensors 810. Specifically, the second sensor magnet 7 Sensor 10 can be opposed to the first-to-second sensor 812 and the second-to-second sensor 814.

[0118] The camera module 10 may include third yokes 730 and 740. 730, 740 are sensor magnet 700 and first and second lens assemblies 210 , can be positioned between 220. The third yoke 730, 740 extends in the direction of the optical axis. It can be formed into a long shape. The cross-section of the third yoke 730, 740 is formed in the shape of a "⊂" This is possible. The third yoke 730, 740 encloses three sides of the sensor magnet 700. This is possible. Specifically, the third yoke 730 and 740 are the sensor magnet 700. It can enclose the surface of the sensor 800, excluding the surface facing it. This allows the sensor magnet To prevent magnetic field leakage from the net 700, the sensor magnet 700 is driven by the first and second drives. This prevents interference with the electromagnetic interaction of parts 400 and 500.

[0119] Third yoke 730, 740 can include third-first yoke 740. The 740 is located between the first lens assembly 210 and the first sensor magnet 720. It can be positioned. The third-first yoke 740 has a first lens barrel 212 and a first side It can be placed in the space between 214. The third-first yoke 740 is the first sensor It is possible to enclose three sides of the magnet 720. This allows the first sensor magnet 72 To reduce the leakage of magnetic fields and prevent interference with the first and second drive units 400 and 500. It is possible.

[0120] The third yoke 730, 740 can include the third-second yoke 730. The 730 is located between the second lens assembly 220 and the second sensor magnet 710. It can be positioned. The third-second yoke 730 has a second lens barrel 222 and a second side It can be placed in the space between 224. The third-second yoke 730 is the second sensor It is possible to enclose three sides of the magnet 710. This allows the second sensor magnet 71 To reduce the leakage of magnetic fields and prevent interference with the first and second drive units 400 and 500. It is possible.

[0121] The camera module 10 may include a sensor 800. The sensor 800 is a It can be placed on the woofer 100. The sensor 800 is placed on the substrate 600. The sensor 800 can be electrically connected to the substrate 600. The Sensor 800 can be opposed to the Sensor Magnet 700. The Sensor 800 is, Includes a Hall sensor that detects the Sensor Magnet 700. It is possible. Sensor 800 can include multiple sensors 810, 820.

[0122] Sensor 800 can include first sensors 822 and 812. Sensors 22 and 812 can be separated from the second sensors 824 and 814 in the optical axis direction. Sensors 822 and 812 are... Sensor 1-1 822 and the optical axis of Sensor 1-1 822. It may include first and second sensors 812 that are separated in a direction perpendicular to the direction.

[0123] Sensor 800 contains second sensors 824 and 814. Sensors 24 and 814 can be separated from the first sensors 822 and 812 in the optical axis direction. Sensors 824 and 814 are connected to the second-first sensor 824 and the second-first sensor 824 on the optical axis. It may include a second-to-second sensor 814 that is separated in a vertical direction.

[0124] Sensor 1-1 822 and Sensor 2-1 824 are connected to Sensor 1 Magnet 720 It can be opposed to the first sensor 822 and the second sensor 824. The inductor magnet 720 can be sensed.

[0125] The first - second sensors 812 and the second - second sensors 814 can face the second sensor magnet 710. The first - second sensors 812 and the second - second sensors 814 can sense the second sensor magnet 710. The first - second sensors 812 and the second - second sensors 814 can sense the second sensor magnet 710.

[0126] The distance between the first sensors 822, 812 and the second sensors 824, 814 and the total movement stroke of the first and second lens assemblies 210, 220 can correspond to the length of the sensor magnet 700 in the optical axis direction. The distance between the first sensors 822, 812 and the second sensors 824, 814 can be larger than the movement stroke of the first and second lens assemblies 210, 220. The distance between the first sensors 822, 812 and the second sensors 824, 814 and the total movement stroke of the first and second lens assemblies 210, 220 can correspond to the length of the sensor magnet 700 in the optical axis direction. The distance between the first sensors 822, 812 and the second sensors 824, 814 can be larger than the movement stroke of the first and second lens assemblies 210, 220. The distance between the first sensors 822, 812 and the second sensors 824, 814 and the total movement stroke of the first and second lens assemblies 210, 220 can correspond to the length of the sensor magnet 700 in the optical axis direction. The distance between the first sensors 822, 812 and the second sensors 824, 814 can be larger than the movement stroke of the first and second lens assemblies 210, 220. The distance between the first sensors 822, 812 and the second sensors 824, 814 can be larger than the movement stroke of the first and second lens assemblies 210, 220. The distance between the first sensors 822, 812 and the second sensors 824, 814 can be larger than the movement stroke of the first and second lens assemblies 210, 220.

[0127] Referring to FIG. 5, when the output value of the first sensors 822, 812 is A and the output value of the second sensors 824, 814 is B, it can be seen that there is linearity during the (A - B) / (A + B) operation. Thus, the amplification of the output value can be facilitated. Referring to FIG. 5, when the output value of the first sensors 822, �12 is A and the output value of the second sensors 824, 814 is B, it can be seen that there is linearity during the (A - B) / (A + B) operation. Thus, the amplification of the output value can be facilitated. Referring to FIG. 5, when the output value of the first sensors 822, 812 is A and the output value of the second sensors 824, 814 is B, it can be seen that there is linearity during the (A - B) / (A + B) operation. Thus, the amplification of the output value can be facilitated.

[0128] Referring to FIG. 6, it can be seen that the measured values of the first sensors 822, 812 and the second sensors 824, 814 with respect to the sensor magnet 700 occur between 0.5 mm and 8.5 mm, that is, when the length of the sensor magnet 700 in the optical axis direction deviates from about 7.5 mm, the measured values of the first sensors 822, 812 and the second sensors 824, 814 are meaningless due to a sharp decrease in magnetic force. Therefore, when the length of the sensor magnet 700 in the optical axis direction is about 7.5 mm, the measurement efficiency of the first sensors 822, 8,12 and the second sensors 824, 814 Referring to FIG. 6, it can be seen that the measured values of the first sensors 822, 812 and the second sensors 824, 814 with respect to the sensor magnet 700 occur between 0.5 mm and 8.5 mm, that is, when the length of the sensor magnet 700 in the optical axis direction deviates from about 7.5 mm, the measured values of the first sensors 822, 812 and the second sensors 824, 814 are meaningless due to a sharp decrease in magnetic force. Therefore, when the length of the sensor magnet 700 in the optical axis direction is about 7.5 mm, the measurement efficiency of the first sensors 822, 8,12 and the second sensors 824, 814 Referring to FIG. 6, it can be seen that the measured values of the first sensors 822, 812 and the second sensors 824, 814 with respect to the sensor magnet 700 occur between 0.5 mm and 8.5 mm, that is, when the length of the sensor magnet 700 in the optical axis direction deviates from about 7.5 mm, the measured values of the first sensors 822, 812 and the second sensors 824, 814 are meaningless due to a sharp decrease in magnetic force. Therefore, when the length of the sensor magnet 700 in the optical axis direction is about 7.5 mm, the measurement efficiency of the first sensors 822, 8,12 and the second sensors 824, 814 Referring to FIG. 6, it can be seen that the measured values of the first sensors 822, 812 and the second sensors 824, 814 with respect to the sensor magnet 700 occur between 0.5 mm and 8.5 mm, that is, when the length of the sensor magnet 700 in the optical axis direction deviates from about 7.5 mm, the measured values of the first sensors 822, 812 and the second sensors I824, 814 are meaningless due to a sharp decrease in magnetic force. Therefore, when the length of the sensor magnet 700 in the optical axis direction is about 7.5 mm, the measurement efficiency of the first sensors 822, 8,12 and the second sensors 824, 814 4 are meaningless. Therefore, when the length of the sensor magnet 700 in the optical axis direction is about 7 .5 mm, the measurement efficiency of the first sensors 822, 812 and the second sensors 824, 814 It can be raised.

[0129] Referring to Figure 7, the length of the sensor magnet 700 in the optical axis direction is approximately 7.5 mm. If the stroke of the sensor magnet 700 is approximately 3 mm, then the first sensors 822 and 812 When the distance between the first sensor and the second sensors 824 and 814 is approximately 4.5 mm, maximum efficiency is maintained. It can be seen that the length of the sensor magnet 700 in the optical axis direction is the first sensor Distance between 812, 822 and the second sensors 814, 824, and the first and second lens assemblies - It is preferable that the length be within 5% of the sum of the optical axis movement strokes of -210 and -220. This is desirable. This will improve the detection rate of the Sensor Magnet 700.

[0130] A second embodiment of the present invention will be described in more detail below with reference to the attached drawings.

[0131] Figure 8 is a perspective view of a camera module according to a second embodiment of the present invention. Figure 9 shows the present invention. Figures 10 and 11 show an exploded perspective view of a camera module according to a second embodiment of the present invention. Figure 12 shows a perspective view of a part of the camera module according to the second embodiment of the present invention. This is a cross-sectional view of a part of the camera module according to the second embodiment. Figure 13 shows part A of Figure 12. This is an enlarged view. Figure 14 is an enlarged view of part B of Figure 12. Figures 15 and 16 show the present invention. Figure 17 is a cross-sectional view of a part of the camera module according to the second embodiment of the present invention. Figures 18 and 19 show the molding process of a part of the camera module according to this embodiment. Figure 20 is an operational diagram of a part of the camera module according to a second embodiment of the invention. This shows the alignment work of the camera module according to the second embodiment. This is a drawing.

[0132] Referring to Figures 8 to 20, the camera module 1010 according to the second embodiment of the present invention is Housing 1100, first lens assembly 1200, and second lens assembly 1 300, third lens assembly 1400, first drive unit 1510, second drive unit 15 The 20 includes a third drive unit 1610, a fourth drive unit 1620, and a guide unit 1700. It is possible, but it is also possible to implement it with the exception of some of the configurations, and any other additional configurations There's no need to exclude them.

[0133] The camera module 1010 according to the second embodiment of the present invention is a lens assembly drive device It may include the following: The lens assembly drive unit includes the housing 1100 and the first lens Lens assembly 1200, second lens assembly 1300, and third lens assembly -1400, the first drive unit 1510, the second drive unit 1520, the third drive unit 1610, The fourth drive unit 1620 and the guide unit 1700 may be included, but some of these components may be It can be implemented without it, and no other additional configurations are excluded.

[0134] The camera module 1010 may include a housing 1100. 100 can form the exterior of the camera module 1010. Housing 110 0 can be formed in a hexahedral shape with the interior exposed. The housing 1100 has, First lens assembly 1200, second lens assembly 1300, third lens assembly The assembly 1400, the first drive unit 1510, the second drive unit 1520, and the third drive unit 16 10, the fourth drive unit 1620, and the guide unit 1700 can be arranged. At least one of the first to fourth drive units 1500 and 1600 can be electrically connected to the housing 1100 and a substrate (not shown) for supplying current can be disposed therein. At least one surface of the housing 1100 can be opened. After the first lens assembly 1200, the second lens assembly 1300, and the third lens assembly 1400 are assembled to the housing 1100, the operation of at least one of the first lens assembly 1200 and the second lens assembly 1300 can be visually confirmed. For example, the housing 1100 has its upper and lower surfaces opened, and the first lens assembly 1200 and the second lens assembly 1300 can be exposed to the outside.

[0135] At least one surface of the housing 1100 can be opened. At least one surface of the housing 1100 is opened, and after the first lens assembly 1200, the second lens assembly 1300, and the third lens assembly 1400 are assembled to the housing 1100, the operation of at least one of the first lens assembly 1200 and the second lens assembly 1300 can be visually confirmed. For example, the housing 1100 has its upper and lower surfaces opened, and the first lens assembly 1200 and the second lens assembly 1300 can be exposed to the outside. The camera module 1010 can include the first lens assembly 1200. The first lens assembly 1200 can be disposed in the housing 1100. The first lens assembly 1200 can be disposed between the second lens assembly 1300 and the third lens assembly 1400. The first lens assembly 1200 can include a first lens barrel 1210, a first lens group 1220, a first side surface 1230, and a second side surface 1240. The first lens assembly 1200 can include the first lens barrel 1210. The first lens barrel 1210 can be formed in a cylindrical shape. The first lens barrel 1210 can include a housing portion formed therein. The first lens barrel 1210 can have

[0136] The camera module 1010 can include the first lens assembly 1200. The first lens assembly 1200 can be disposed in the housing 1100. The first lens assembly 1200 can be disposed between the second lens assembly 1300 and the third lens assembly 1400. The first lens assembly 1200 can include a first lens barrel 1210, a first lens group 1220, a first side surface 1230, and a second side surface 1240. The first lens assembly 1200 can be disposed between the second lens assembly 1300 and the third lens assembly 1400. The first lens assembly 1200 can include a first lens barrel 1210, a first lens group 1220, a first side surface 1230, and a second side surface 1240. The first lens assembly 1200 can include a first lens barrel 1210, a first lens group 1220, a first side surface 1230, and a second side surface 1故40.

[0137] The first lens assembly 1200 can include the first lens barrel 1210. The first lens barrel 1210 can be formed in a cylindrical shape. The first lens barrel 1210 can include a housing portion formed therein. The first lens barrel 1210 can include a housing portion formed therein. The first lens barrel 1210 can have The first lens group 1220 can be arranged from the first lens barrel 1210 to the first The side surface 1230 and the second side surface 1240 can be extended.

[0138] The first lens barrel 1210 may include a first hole 1212. 212 may include at least one hole. First lens assembly 120 With the first lens assembly 120 assembled inside the housing 1100 0 is aligned with the upper and lower surfaces of the housing 1100 via the first hole 1212. Alignment is performed via mechanism 11000.

[0139] The first lens assembly 1200 may include the first lens group 1220. The lens group 1220 can be arranged on the first lens barrel 1210. Group 1220 is arranged in a housing formed inside the first lens barrel 1210. Yes, it is possible. The first lens group 1220 is connected to the second lens group 1320 and the third lens group 1420, and light Aligned in the axial direction. The first lens group 1220 includes at least one lens. It is possible.

[0140] The first lens assembly 1200 may include a first side surface 1230. The first side 1230 of the lens assembly 1200 is connected to the first lens barrel 1210. The first side surface 1230 of the first lens assembly 1200 is shaped like a square plate. This can be done. The first side surface 1230 of the first lens assembly 1200 is the first lens It can be positioned on one side of the barrel 1210.

[0141] The first side surface 1230 of the first lens assembly 1200 is the first guide section 1730, 17 It can be opposed to 40. The first side surface 1230 of the first lens assembly 1200 is The first guide sections 1730 and 1740 can guide movement in the optical axis direction.

[0142] The first side surface 1230 of the first lens assembly 1200 is connected to the second lens assembly 13 The first side surface 1330 of 00 overlaps in the direction of the optical axis. The length of the optical axis of the first side surface 1230 of lens assembly 1200 is the length of the second lens assembly The first side surface 1330 of the Lee 1300 can be formed to be longer than the length in the optical axis direction.

[0143] A third drive unit 1610 is positioned on the first side surface 1230 of the first lens assembly 1200. The first side surface 1230 of the first lens assembly 1200 is the third drive The first lens assembly 120 may include a groove 1236 in which part 1610 is positioned. The first side surface 1230 of 0 can face the first drive unit 1510.

[0144] The first side surface 1230 of the first lens assembly 1200 has third grooves 1232 and 1234 It can include. The third grooves 1232 and 1234 are opposite the first guide sections 1730 and 1740. It can be directed. The third grooves 1232 and 1234 are the first guide sections 1730 and 1740. The first grooves 1732 and 1742 can be opposed to each other. The third grooves 1232 and 1234 are "V" It can be formed in a letter shape. The third grooves 1232 and 1234 are formed by the first guide ball 181 It can make contact with 0 and 1820. The third grooves 1232 and 1234 are the first guide ball It can make contact at two points, 1810 and 1820.

[0145] The third grooves 1232 and 1234 include the third-first groove 1232 and the third-second groove 1234. Yes, it is possible. The 3-1 groove 1232 and the 3-2 groove 1234 are separated in a direction perpendicular to the optical axis. It is possible. The 3-1 groove 1232 and the 3-2 groove 1234 have corresponding shapes to each other. It can be formed by size. The 3-1 groove 1232 is opposite the 1-1 groove 1732. The third-second groove 1234 can face the first-second groove 1742. The third drive unit 1610 is positioned in the space between the third-first groove 1232 and the third-second groove 1234. It can be done. The third-first groove 1232 is a plurality of third-first grooves 12 that are spaced apart in the direction of the optical axis. It includes 32. The third-second groove 1234 is a plurality of third-second grooves spaced apart in the optical axis direction. It can include 1234. The third-first groove 1232 and the third-second groove 1234 are each "V" It can be formed in a letter shape. The 3-1 groove 1232 is the 1-1 guide ball 1810 It can make contact with the 3-1 groove 1232 and the 1-1 guide ball 1810 at 2 points. It can make contact. The 3-2 groove 1234 makes contact with the 1-2 guide ball 1820. The 3-2 groove 1234 makes contact with the 1-2 guide ball 1820 at two points. It is possible.

[0146] The first lens assembly 1200 may include a second side surface 1240. The second side 1240 of the lens assembly 1200 is connected to the first lens barrel 1210. The second side surface 1240 of the first lens assembly 1200 is shaped like a square plate. This can be done. The second side surface 1240 of the first lens assembly 1200 is the first lens It can be positioned on the other side of the lens barrel 1210. That is, the first lens assembly 1 The second side 1240 of 200 is the first lens assembly with respect to the first lens barrel 1210. - It can be positioned opposite the first side surface 1230 of 1200.

[0147] The second side surface 1240 of the first lens assembly 1200 is the second guide section 1710, 17 It can be opposed to 20. The second side surface 1240 of the first lens assembly 1200 is The second guide sections 1710 and 1720 can guide movement in the optical axis direction.

[0148] The second side 1240 of the first lens assembly 1200 is the second lens assembly 13 The second side surface 1340 of 00 can overlap in the optical axis direction. The length of the optical axis of the second side surface 1240 of the semble 1200 is the second lens assembly 1 It can be formed to be shorter than the length of the optical axis direction of the second side surface 1330 of 300.

[0149] The second side surface 1240 of the first lens assembly 1200 faces the second drive unit 1520. It is possible.

[0150] The second side 1240 of the first lens assembly 1200 has fourth grooves 1242, 1244 It can include. The fourth grooves 1242 and 1244 are opposite the second guide sections 1710 and 1720. It can be directed. The fourth grooves 1242 and 1244 are the second guide sections 1710 and 1720. The second grooves 1712 and 1722 can be opposed to each other. The fourth grooves 1242 and 1244 are "V It can be formed in a "" shape. The fourth grooves 1242 and 1244 are formed by the second guide ball 18 30 and 1840 can be in contact. The fourth grooves 1242 and 1244 are the second guide bore. It can make contact at two points, 1830 and 1840.

[0151] The fourth grooves 1242 and 1244 include the fourth-first groove 1242 and the fourth-second groove 1244. This is possible. The 4-1 groove 1242 and the 4-2 groove 1244 are separated in a direction perpendicular to the optical axis. They can be separated. Grooves 4-1 1242 and 4-2 1244 have corresponding shapes. It can be formed to the size of the following. The 4th-1 groove 1242 is opposite the 2nd-1 groove 1712. It is possible. The 4th-2nd groove 1244 can face the 2nd-2nd groove 1722. The 4-1 groove 1242 and the 4-2 groove 1244 can each be formed in a "V" shape. The 4th groove 1242 can come into contact with the 2nd guide ball 1830. Groove 4-1 1242 can make contact with the second-first guide ball 1830 at two points. Groove 4-2 1244 can contact the second-second guide ball 1840. The groove 1244 can make contact with the second-second guide ball 1840 at two points.

[0152] The length of the optical axis of the first side surface 1230 of the first lens assembly 1200, and the second lens The sum of the lengths in the optical axis direction of the first side surface 1330 of assembly 1300 is the first lens assembly Length of the optical axis of the second side surface 1240 of Bree 1200 and the second lens assembly 1300 This can correspond to the sum of the lengths in the optical axis direction of the second side 1340.

[0153] The camera module 1010 may include a second lens assembly 1300. The second lens assembly 1300 can be placed in the housing 1100. The second lens assembly 1300 is positioned on one side of the first lens assembly 1200. The second lens assembly 1300 comprises the second lens barrel 1310 and the second It may include a lens group 1320, a first side surface 1330, and a second side surface 1340.

[0154] The second lens assembly 1300 may include the second lens barrel 1310. The second lens barrel 1310 can be formed in a cylindrical shape. 310 may include a housing formed internally. The second lens barrel 1310 The second lens group 1320 can be positioned from the second lens barrel 1310 to the first The side surface 1330 and the second side surface 1340 can be extended.

[0155] The second lens barrel 1310 includes a second hole 1312. 312 may include at least one hole. Second lens assembly 130 With the 0 assembled inside the housing 1100, the second lens assembly 130 0 is aligned with the upper and lower surfaces of the housing 1100 and through the second hole 1312. Alignment is performed via mechanism 11000.

[0156] The second lens assembly 1300 may include a second lens group 1320. The lens group 1320 can be positioned on the second lens barrel 1310. Group 1320 is arranged in a housing formed inside the second lens barrel 1310. Yes, it is possible. The second lens group 1320 is connected to the first lens group 1220 and the third lens group 1420, and light It is aligned in the axial direction. The second lens group 1320 includes at least one lens. It is possible.

[0157] The second lens assembly 1300 may include the first side surface 1330. The first side 1330 of the lens assembly 1300 is connected to the second lens barrel 1310. The first side surface 1330 of the second lens assembly 1300 is shaped like a square plate. This can be done. The first side surface 1330 of the second lens assembly 1300 is the second lens It can be positioned on one side of the lens barrel 1310.

[0158] The first side surface 1330 of the second lens assembly 1300 is the first guide section 1730, 17 It can be opposed to 40. The first side surface 1330 of the second lens assembly 1300 is The first guide sections 1730 and 1740 can guide movement in the optical axis direction.

[0159] The first side surface 1330 of the second lens assembly 1300 is the first lens assembly 12 The first side surface 1230 of 00 overlaps in the direction of the optical axis. The length of the optical axis of the first side surface 1330 of the lens assembly 1300 is the length of the first lens assembly The first side surface 1230 of the Lee 1200 can be formed to be shorter than the length in the optical axis direction.

[0160] The first side surface 1330 of the second lens assembly 1300 faces the first drive unit 1510. It is possible.

[0161] The first side surface 1330 of the second lens assembly 1300 has fifth grooves 1332 and 1334. It can include. The fifth grooves 1332 and 1334 are opposite the first guide sections 1730 and 1740. It can be directed. The fifth grooves 1332 and 1334 are the first guide sections 1730 and 1740. The first grooves 1732 and 1742 can be opposed to each other. The fifth grooves 1332 and 1334 are "V It can be formed in a "L" shape. The fifth grooves 1332 and 1334 are formed by the third guide ball 18 It can make contact with 50 and 1860. The fifth grooves 1332 and 1334 are connected to the third guide bore. It can make contact with points 1850 and 1860.

[0162] The fifth grooves 1332 and 1334 include the fifth-first groove 1332 and the fifth-second groove 1334. This is possible. The 5-1 groove 1332 and the 5-2 groove 1334 are separated in a direction perpendicular to the optical axis. They can be separated. Grooves 5-1 1332 and 5-2 1334 have corresponding shapes. It can be formed to the size of the groove. The 5th-1 groove 1332 is opposite the 1st-1 groove 1732. It is possible. The 5th-2nd groove 1334 can face the 1st-2nd groove 1742. The 5-1 groove 1332 and the 5-2 groove 1334 can each be formed in a "V" shape. The 5th groove 1332 can contact the 3rd guide ball 1850. Groove 5-1 1332 can make contact with the third-first guide ball 1850 at two points. Groove 5-2 1334 can contact the 3-2 guide ball 1860. The groove 1334 can make contact with the third-second guide ball 1860 at two points.

[0163] The second lens assembly 1300 may include a second side surface 1340. The second side 1340 of the lens assembly 1300 is connected to the second lens barrel 1310. The second side surface 1340 of the second lens assembly 1300 is shaped like a square plate. This can be done. The second side surface 1340 of the second lens assembly 1300 is the second lens It can be positioned on the other side of the lens barrel 1310. That is, the second lens assembly 1 The second side 1340 of 300 is the second lens assembly with respect to the second lens barrel 1310. - It can be positioned opposite the first side surface 1330 of 1300.

[0164] The second side surface 1340 of the second lens assembly 1300 is the second guide section 1710, 17 It can be opposed to 20. The second side surface 1340 of the second lens assembly 1300 is The second guide sections 1710 and 1720 can guide movement in the optical axis direction.

[0165] The second side surface 1340 of the second lens assembly 1300 is the first lens assembly 12 The second side surface 1240 of 00 can overlap in the optical axis direction. The length of the optical axis of the second side surface 1340 of the semble 1300 is the length of the first lens assembly 1 The second side surface 1240 of 200 can be formed to be longer than the length in the optical axis direction.

[0166] A fourth drive unit 1620 is positioned on the second side surface 1340 of the second lens assembly 1300. It can be done. The second side surface 1340 of the second lens assembly 1300 is the fourth drive A groove 1346 can be formed in which part 1620 is placed. Second lens assembly The second side surface 1340 of 1300 can face the second drive unit 1520.

[0167] The second side surface 1340 of the second lens assembly 1300 has six grooves 1342 and 1344. It can include. The sixth grooves 1342 and 1344 are opposite the second guide sections 1710 and 1720. It can be directed. The sixth grooves 1342 and 1344 are the second guide sections 1710 and 1720. The second grooves 1712 and 1722 can be opposed to each other. The sixth grooves 1342 and 1344 are "V It can be formed in a "L" shape. The sixth groove 1342, 1344 is the fourth guide ball 18 It can make contact with 70 and 1880. The 6th groove 1342, 1344 is the 4th guide bow. It can make contact with points 1870 and 1880.

[0168] The sixth grooves 1342 and 1344 include the sixth-first groove 1342 and the sixth-second groove 1344. This is possible. The 6-1 groove 1342 and the 6-2 groove 1344 are separated in a direction perpendicular to the optical axis. They can be separated. Grooves 6-1 1342 and 6-2 1344 have corresponding shapes. It can be formed in this size. The 6th-1 groove 1342 is opposite the 2nd-1 groove 1712. It is possible. The 6th-2nd groove 1344 can face the 2nd-2nd groove 1722. The space between the 6-1 groove 1342 and the 6-2 groove 1344 contains the 4th drive unit 1620. It can be placed. The 6-1 groove 1342 is a plurality of 6-1 grooves 1 that are spaced apart in the direction of the optical axis. It can include 342. The 6th-2 groove 1344 has multiple 6th-2 grooves spaced apart in the optical axis direction. It may include groove 1344. Grooves 6-1 1342 and 6-2 1344 are each "V It can be formed in a "" shape. The 6th groove 1342 is formed by the 4th guide ball 187 It can make contact with 0. The 6th-1 groove 1342 is connected to the 4th-1 guide ball 1870 and 2 It can make contact at a point. The 6th-2nd groove 1344 contacts the 4th-2nd guide ball 1880. It can be touched. The 6th-2nd groove 1344 makes contact with the 4th-2nd guide ball 1880 at two points. It can be touched.

[0169] The camera module 1010 may include a third lens assembly 1400. The third lens assembly 1400 can be placed in the housing 1100. The third lens assembly 1400 can be fixed to the housing 1100. The lens assembly 1400 can be fixed to the front of the housing 1100. The third lens assembly 1400 can be positioned on the other side of the first lens group 1220. The third lens assembly 1400 is first assembled to the side of the housing 1100. After that, the first lens assembly 1200 and the second lens assembly 1300 are housed together. It is placed and assembled inside the G1100.

[0170] The third lens assembly 1400 may include a third lens group 1420. The third lens group 1420 of the lens assembly 1400 includes at least one lens. It is possible. The third lens group 1420 of the third lens assembly 1400 is the first lens Alignment of lens group 1220 and second lens group 1320 in the optical axis direction. It will be done.

[0171] The camera module 1010 may include a first drive unit 1510. 510 can be placed in the housing 1100. The first drive unit 1510 is in the housing It can be positioned on the side of the 1100. The first drive unit 1510 is located in the housing 1 100 grooves 1102 can be arranged. The first drive unit 1510 is connected to the third drive unit 16 It can be opposed to 10. The length of the optical axis direction of the first drive unit 1510 is the same as that of the third drive unit 16 It can be formed to be longer than the length in the optical axis direction of the first drive unit 1510. The length in the direction perpendicular to is less than the length in the direction perpendicular to the optical axis of the third drive unit 1610. It can be formed to be long. The first drive unit 1510 may be a solenoid coil. In contrast, if the third drive unit 1610 is a coil, the first drive unit 1510 is a magnet This is possible. The first drive unit 1510 interacts with the third drive unit 1610 via electromagnetic interaction. The first lens assembly 1200 can be moved along the optical axis.

[0172] The camera module 1010 may include a second drive unit 1520. 520 can be placed in the housing 1100. The second drive unit 1520 is in the housing The second drive unit 1520 can be positioned on the side of the housing 1. 100 grooves 1102 can be arranged. The second drive unit 1520 is the fourth drive unit 16 It can be opposed to 20. The length of the optical axis direction of the second drive unit 1520 is equal to that of the fourth drive unit 16 It can be formed to be longer than the length in the optical axis direction of the second drive unit 1520. The length in the direction perpendicular to is less than the length in the direction perpendicular to the optical axis of the fourth drive unit 1620. It can be formed into a long shape. The second drive unit 1520 may be a solenoid coil. In contrast, if the fourth drive unit 1620 is a coil, the second drive unit 1520 is a magnet This is possible. The second drive unit 1520 interacts with the fourth drive unit 1620 via electromagnetic interaction. The second lens assembly 1300 can be moved along the optical axis.

[0173] The camera module 1010 may include a third drive unit 1610. 610 can be placed in the first lens assembly 1200. Third drive unit 16 10 can be positioned on the first side surface 1230 of the first lens assembly 1200. The third drive unit 1610 is located in the groove 1230 of the first side surface 12 of the first lens assembly 1200. It can be positioned at 36. The third drive unit 1610 is connected to the first lens assembly 120 It is positioned between the 3-1 groove 1232 and the 3-2 groove 1234 of the first side surface 1230 of 0. The third drive unit 1610 can face the first drive unit 1510. 3. The drive unit 1610 may be a magnet. In contrast, the first drive unit 1510 may be a magnet If it is a coil, the third drive unit 1610 may be a coil. The length in the optical axis direction can be formed to be shorter than the length in the optical axis direction of the first drive unit 1510. The length of the third drive unit 1610 in the direction perpendicular to the optical axis is the same as the length of the first drive unit 1510. It can be formed to be shorter than the length in the direction perpendicular to the axial direction. The third drive unit 1610 is The surface facing the first drive unit 1510 is magnetized to the first polarity, and the surface facing the first drive unit 1510 The side without magnetization is magnetized to the second polarity. In contrast to this, the third drive unit 1610 is the first drive unit The surface facing 1510 is magnetized to the first and second polarities. The third drive unit 1610 is the The first lens assembly 1200 is moved along the optical axis via electromagnetic interaction with the drive unit 1510. It can be moved in any direction.

[0174] The camera module 1010 may include a fourth drive unit 1620. 620 can be placed in the second lens assembly 1300. Fourth drive unit 16 20 can be positioned on the second side 1340 of the second lens assembly 1300. The fourth drive unit 1620 is located in the groove 1340 of the second side surface 13 of the second lens assembly 1300. It can be positioned at 46. The fourth drive unit 1620 is located at the second lens assembly 130 It is positioned between the 6-1 groove 1342 and the 6-2 groove 1344 of the second side surface 1340 of 0. The fourth drive unit 1620 can face the second drive unit 1520. The drive unit 1620 may be a magnet. In contrast, the second drive unit 1520 may be a magnet If it is a net, the fourth drive unit 1620 may be a coil. Optical axis of the fourth drive unit 1620 The length in the direction can be formed to be shorter than the length in the optical axis direction of the second drive unit 1520. The length of the fourth drive unit 1620 in the direction perpendicular to the optical axis is the same as the length of the second drive unit 1520 in the direction perpendicular to the optical axis. It can be formed to be shorter than the length in the direction perpendicular to the direction. The fourth drive unit 1620 is The surface facing the second drive unit 1520 is magnetized to the first polarity, and the surface not facing the second drive unit 1520 is magnetized to the first polarity. The surface is magnetized to the second polarity. In contrast, the fourth drive unit 1620 is connected to the second drive unit 15 The surface facing 20 is magnetized to the first and second polarities. The fourth drive unit 1620 is the second drive unit The second lens assembly 1300 moves in the optical axis direction via electromagnetic interaction with the moving part 1520. It can be moved to [location].

[0175] That is, in the second embodiment of the present invention, the electromagnetic interaction between the first drive unit 1510 and the third drive unit 1610 The second drive unit 15 moves the first lens assembly 1200 in the optical axis direction through its action. The second lens assembly 1300 is connected to the fourth drive unit 1620 via electromagnetic interaction between 20 and the fourth drive unit 1620. By moving it along the optical axis, a zooming function can be achieved. ru.

[0176] The camera module 1010 may include a guide unit 1700. 0 can be placed in the housing 1100. Guide section 1700 is housing It can be formed integrally with 1100. The guide portion 1700 is of the housing 1100 It can be formed integrally with the inside. Referring to Figure 17, via the molding mechanism 1900 The guide section 1700 and the inner surface of the housing 1100 can be molded as a single unit. Then, the first guide parts 1730 and 1740 are formed via the first molding mechanism 1920, and the second molding The second guide portions 1710 and 1720 can be formed via the molding mechanism 1910.

[0177] The guide portion 1700 can be extended in the direction of the optical axis. The guide portion 1700 is The optical axis movement of the first lens assembly 1200 and the second lens assembly 1300 is controlled by It can be idled. Guide section 1710 consists of first guide sections 1730 and 1740, and second Guide sections 1710 and 1720 may be included.

[0178] The guide section 1710 may include first guide sections 1730 and 1740. The guide sections 1730 and 1740 are formed symmetrically with respect to the optical axis with respect to the second guide sections 1710 and 1720. The first guide sections 1730 and 1740 are connected to the second guide sections 1710 and 174 It can be formed in positions corresponding to 0 and in corresponding shapes. First guide section Sections 1730 and 1740 can be extended in the direction of the optical axis. First guide section 1730 , 1740 may include the first grooves 1732, 1742.

[0179] The first grooves 1732 and 1742 are connected to the first side surface 1230 of the first lens assembly 1200. They can be opposed. The first grooves 1732 and 1742 are the first lens assembly 1200 The first side surface 1230 can face the third grooves 1232 and 1234. 2. 1742 is in contact with at least a portion of the first guide balls 1810, 1820. This is possible. One of the first grooves 1732 and 1742 is the first guide ball 1810 or 1820. One of the balls in the middle makes contact at one point, and the other in the first grooves 1732 and 1742 is the first guide ball. 1810 and 1820 can make contact with one of the other points at two points.

[0180] The first grooves 1732 and 1742 are connected to the first side surface 1330 of the second lens assembly 1300. They can be opposed. The first grooves 1732 and 1742 are located in the second lens assembly 1300. The first side surface 1330 can face the fifth grooves 1332 and 1334. 2. 1742 is in contact with at least a portion of the third guide balls 1850, 1860. This is possible. One of the first grooves 1732 and 1742 is the third guide ball 1850 and 1860. One contact point with the other in the first grooves 1732, 1742, is the third guide ball 18 50 can make contact with one of the other 1860 at two points.

[0181] The first guide sections 1730 and 1740 may include the first-first guide section 1730. The first-first guide section 1730 is separated from the first-second guide section 1740 in a direction perpendicular to the optical axis. This is possible. The first-first guide section 1730 is positioned on top of the first-second guide section 1740. It can be done. The length of the optical axis direction of the 1-1 guide section 1730 is the same as the length of the 1-2 guide section It can accommodate a length of 1740 in the optical axis direction. The first guide section 1730 is the optical axis It can be extended in the direction. It is perpendicular to the optical axis direction of the 1-1 guide section 1730. The length in the direction is longer than the length in the direction perpendicular to the optical axis of the first-to-second guide section 1740. good.

[0182] The first-first guide section 1730 can include the first-first groove 1732. 732 is the third-first groove 1232 of the first side surface 1230 of the first lens assembly 1200 and They can be opposed. The first groove 1732 has a small number of first guide balls 1810. However, a portion can be placed. Referring to Figures 10 to 15, the 1st groove 173 2 can be formed in a "V" shape. Referring to Figures 10 to 15, the 1st groove 1 732 can make contact with the 1st-1st guide ball 1810 at two points. Referring to Figures 8, 9, and 16, the first groove 1732 is U-shaped or L-shaped. It can be formed in a "" shape. Referring to Figures 8, 9 and 16, the 1st groove 17 32 can make contact with the 1-1 guide ball 1810 at one point.

[0183] The 1-1 groove 1732 is the 5- of the first side surface 1330 of the second lens assembly 1300. It can face groove 1332. Groove 1-1 1732 has a guide ball 3-1 At least a portion of 1850 can be arranged. Referring to Figures 10 to 15, Groove 1-1 1732 can make contact with the 3-1 guide ball 1850 at two points. (Figure) 8. Referring to Figures 9 and 16, the 1-1 groove 1732 is connected to the 3-1 guide ball 185 It is possible to make contact at point 0 and point 1.

[0184] The first guide sections 1730 and 1740 may include the first-second guide section 1740. The first-second guide section 1740 is separated from the first-first guide section 1730 in a direction perpendicular to the optical axis. This is possible. The first-second guide section 1740 is positioned below the first-first guide section 1730. It can be done. The length of the optical axis direction of the first-second guide section 1740 is the same as the length of the first-first guide section It can correspond to the length of the optical axis of 1730. The first and second guide sections 1740 are the optical axis It can be extended in the direction of the optical axis of the first and second guide sections 1740. The length in the direction is shorter than the length in the direction perpendicular to the optical axis of the 1-1 guide section 1730. It can be done.

[0185] The first- and second guide sections 1740 can include the first- and second grooves 1742. 42 is opposite the third-second groove 1234 of the first side surface 1230 of the first lens assembly 1200. It can be directed. The first and second grooves 1742 have fewer first and second guide balls 1820. Parts of both can be placed. Referring to Figures 10 to 15, the 1st and 2nd grooves 1742 It can be formed in a "U" shape or an "L" shape. See Figures 10 to 15. The first and second grooves 1742 can make contact with the first and second guide balls 1820 at one point. In contrast, referring to Figures 8, 9, and 16, the first-second groove 1742 is "V It can be formed in a "" shape. Referring to Figures 8, 9 and 16, the first and second grooves 17 42 can make contact with the first and second guide balls 1820 at two points.

[0186] The first-second groove 1742 is the fifth- fifth side of the first side 1330 of the second lens assembly 1300. It can face groove 2 1334. Grooves 1-2 1742 have guide balls 3-2 At least a portion of 1860 can be arranged. Referring to Figures 10 to 15, The 1-2 groove 1742 can make contact with the 3-2 guide ball 1860 at a single point. In contrast, referring to Figures 8, 9 and 16, the 1st-2nd groove 1742 is the 3rd-2nd groove. It can make contact with the guide ball 1860 at two points.

[0187] The guide section 1710 may include second guide sections 1710 and 1720. Sections 1710 and 1720 are formed symmetrically with respect to the optical axis with respect to the first guide sections 1730 and 1740. The second guide sections 1710 and 1720 are connected to the first guide sections 1730 and 1740. They can be formed in corresponding positions and in corresponding shapes. Second guide section 1 710 and 1720 can be extended in the direction of the optical axis. Second guide section 1710, 1720 may have second grooves 1712 and 1722.

[0188] The second grooves 1712 and 1722 are connected to the second side surface 1240 of the first lens assembly 1200. They can be opposed. The second grooves 1712 and 1722 are located in the first lens assembly 1200. The second side surface 1240 can face the fourth grooves 1242 and 1244. 2. 1722 is in contact with at least a portion of the second guide balls 1830, 1840. This is possible. One of the second grooves 1712 and 1722 is the second guide ball 1830 and 1840. One contact point with the other in the second grooves 1712, 1722, is the second guide ball 18 30 can make contact with one of the other 1840 at two points.

[0189] The second grooves 1712 and 1722 are connected to the second side surface 1340 of the second lens assembly 1300. They can be opposed. The second grooves 1712 and 1722 are located in the second lens assembly 1300. The second side surface 1340 can face the sixth grooves 1342 and 1344. 2. 1722 is in contact with at least a portion of the fourth guide ball 1870, 1880. This is possible. One of the second grooves 1712 and 1722 is the fourth guide ball 1870 and 1880. One contact point with the other in the second grooves 1712, 1722, is the fourth guide ball 18 70, 1880, made contact with one of the other at two points. The second guide sections 1710 and 1720 may include the second-first guide section 1710. The second-first guide section 1710 is separated from the second-second guide section 1720 in a direction perpendicular to the optical axis. This is possible. The second-first guide section 1710 is positioned on top of the second-second guide section 1720. It can be done. The length of the optical axis direction of the second-first guide section 1710 is the same as that of the second-second guide section It can accommodate a length of 1720 in the optical axis direction. The second-first guide section 1710 is the optical axis It can be extended in the direction. The second-first guide portion 1710 is perpendicular to the optical axis direction. The length in the direction is longer than the length in the direction perpendicular to the optical axis of the second-second guide section 1720. That's fine.

[0190] The second-first guide section 1710 may include the second-first groove 1712. 712 is the 4-1 groove 1242 of the second side surface 1240 of the first lens assembly 1200 and They can be opposed. The second-first groove 1712 has a small number of second-first guide balls 1830. However, a portion of it can be placed. Referring to Figures 10 to 15, the 2-1 groove 171 2 can be formed in a "V" shape. Referring to Figures 10 to 15, the 2-1 groove 1 712 can make contact with the second-first guide ball 1830 at two points. Referring to Figures 8, 9, and 16, the 2-1 groove 1712 is U-shaped or L-shaped. It can be formed in a "" shape. Referring to Figures 8, 9 and 16, the 2-1 groove 17 Point 12 can make contact with the second-first guide ball 1830 at one point.

[0191] The 2-1 groove 1712 is the 6th side of the second side 1340 of the second lens assembly 1300. It can face groove 1342. Groove 2-1 1712 has a guide ball 4-1 At least a portion of 1870 can be arranged. Referring to Figures 10 to 15, Groove 2-1 1712 can make contact with the 4-1 guide ball 1870 at two points. (Figure) 8. Referring to Figures 9 and 16, the 2-1 groove 1712 is connected to the 4-1 guide ball 187 It is possible to make contact at point 0 and point 1.

[0192] The second guide sections 1710 and 1720 may include the second-second guide section 1720. The second-second guide section 1720 is separated from the second-first guide section 1710 in a direction perpendicular to the optical axis. This is possible. The second-second guide section 1720 is positioned below the second-first guide section 1710. It can be done. The length of the optical axis direction of the second-second guide section 1720 is the same as that of the second-first guide section It can correspond to the length of the optical axis of 1710. The second-second guide section 1720 is the optical axis It can be extended in the direction. It is perpendicular to the optical axis direction of the second-second guide section 1720. The length in the direction is shorter than the length in the direction perpendicular to the optical axis of the second-first guide section 1710. It can be done.

[0193] The second-second guide section 1720 can contain the second-second groove 1722. 722 is the 4th-2nd groove 1244 of the second side surface 1240 of the first lens assembly 1200 and They can be opposed. The second-second groove 1722 has a small number of second-second guide balls 1840. However, a portion of it can be placed. Referring to Figures 10 to 15, the 2-2 groove 172 2 can be formed in a "U" shape or an "L" shape. See Figures 10 to 15. The second-second groove 1722 can make contact with the second-second guide ball 1840 at a single point. In contrast, referring to Figures 8, 9 and 16, the 2-2 groove 1722 is, It can be formed in a V-shape. Referring to Figures 8, 9 and 16, the second groove 1 722 can make contact with the second-second guide ball 1840 at two points.

[0194] The second groove 1722 is the sixth side of the second lens assembly 1340 of the second lens assembly 1300. It can face groove 2 1344. Groove 2-2 1722 has a guide ball 4-2 At least a portion of 1880 can be arranged. Referring to Figures 10 to 15, The 2-2 groove 1722 can make contact with the 4-2 guide ball 1880 at a single point. In contrast, referring to Figures 8, 9 and 16, the 2-2 groove 1722 is the 4-2 It can make contact with the guide ball 1880 at two points.

[0195] The camera module 1010 may include a guide ball 1800. The 1800 is positioned between the first lens assembly 1200 and the guide section 1700. This is possible. The guide ball 1800 is connected to the second lens assembly 1300 and the guide section 1 It can be placed between 700 and 700.

[0196] Guide ball 1800 may include first guide balls 1810 and 1820. The first guide balls 1810 and 1820 are located on the first side of the first lens assembly 1200. It can be positioned between 230 and the first guide sections 1730 and 1740.

[0197] The first guide balls 1810 and 1820 include the first-first guide ball 1810. Yes, it is possible. The first-first guide ball 1810 is located in the first-first groove 17 of the first-first guide section 1730. Between 32 and the 3-1 groove 1232 of the first side surface 1230 of the first lens assembly 1200 They can be arranged. The first guide balls 1810 are spaced apart from each other in the direction of the optical axis. It can include two guide balls 1812 and 1814.

[0198] The first guide balls 1810 and 1820 may include the first-second guide ball 1820. Yes, it is possible. The first and second guide balls 1820 are located in the first and second grooves 17 of the first and second guide section 1740. Between 42 and the third-second groove 1234 of the first side surface 1230 of the first lens assembly 1200 They can be arranged. The first and second guide balls 1820 are spaced apart from each other in the direction of the optical axis. It can include two guide balls, 1822 and 1824.

[0199] Guide ball 1800 may include second guide balls 1830 and 1840. The second guide balls 1830 and 1840 are located on the second side of the first lens assembly 1200. It can be positioned between 240 and the second guide sections 1710 and 1720.

[0200] The second guide balls 1830 and 1840 include the second-first guide ball 1830. Yes, it is possible. The second-first guide ball 1830 is located in the second-first groove 17 of the second-first guide section 1710. Between 12 and the 4-1 groove 1242 of the second side surface 1240 of the first lens assembly 1200 It can be placed in [location].

[0201] The second guide balls 1830 and 1840 include the second-second guide ball 1840. Yes, it is possible. The second-second guide ball 1840 is located in the second-second groove 17 of the second-second guide section 1720. 22 and the 4-2 groove 1244 of the second side surface 1240 of the first lens assembly 1200 are opposite each other. It is possible.

[0202] Guide ball 1800 may include third guide balls 1850 and 1860. The third guide balls 1850 and 1860 are located on the first side of the second lens assembly 1300. It can be positioned between 330 and the first guide sections 1730 and 1740.

[0203] The third guide balls 1850 and 1860 include the third-first guide ball 1850. Yes, it is possible. The 3-1 guide ball 1850 is located in the 1-1 groove 17 of the 1-1 guide section 1730. Between 32 and the 5-1 groove 1332 of the first side surface 1330 of the second lens assembly 1300 It can be placed in [location].

[0204] The third guide balls 1850 and 1860 include the third-second guide ball 1860. Yes, it is possible. The 3-2 guide ball 1860 is located in the 1-2 groove 17 of the 1-2 guide section 1840. Between 42 and the 5-2 groove 1334 of the first side surface 1330 of the second lens assembly 1300 It can be placed in [location].

[0205] Guide ball 1800 may include fourth guide balls 1870 and 1880. The fourth guide balls 1870 and 1880 are located on the second side of the second lens assembly 1300. It can be positioned between 340 and the second guide sections 1710 and 1720.

[0206] The fourth guide balls 1870 and 1880 include the fourth-first guide ball 1870. Yes, it is possible. The 4th-1 guide ball 1870 is located in the 2nd-1 groove 17 of the 2nd-1 guide section 1710. Between 12 and the 6-1 groove 1342 of the second side surface 1340 of the second lens assembly 1300 They can be positioned as follows. The 4-1 guide balls 1870 are spaced apart from each other in the direction of the optical axis. It can include two guide balls 1872 and 1874.

[0207] The fourth guide balls 1870 and 1880 include the fourth-second guide ball 1880. Yes, it is possible. The 4th-2nd guide ball 1880 is located in the 2nd-2nd groove 17 of the 2nd-2nd guide section 1720. Between 22 and the 6-2 groove 1223 of the second side surface 1240 of the second lens assembly 1300 They can be positioned as follows. The 4th-2nd guide balls 1800 are spaced apart from each other in the direction of the optical axis. It can include two guide balls, 1882 and 1884.

[0208] The embodiments of the present invention have been described above with reference to the attached drawings, but the technical field to which the present invention belongs A person with ordinary skill in this regard would not change the technical idea or essential features of the present invention. It should be clear that this can be implemented in a specific form. Therefore, The examples described are illustrative in all respects and not limiting. It must be done.

Claims

1. housing; A first substrate disposed on the housing; A first lens assembly disposed within the housing; A second lens assembly positioned on one side of the first lens assembly; A first guide portion formed in the housing, which guides the movement of the first lens assembly in the optical axis direction; A first drive magnet positioned on the first lens assembly; A first coil positioned opposite the first drive magnet; and A first sensor is located away from the first lens assembly, senses the position of the first lens assembly in the optical axis direction, and is electrically connected to the first substrate; The first sensor includes two first sensors spaced apart in the direction of the optical axis, The first guide portion includes a 1-1 groove and a 1-2 groove for guiding the movement of the first lens assembly, In a second direction perpendicular to the optical axis, the first drive magnet is positioned between the 1-1 groove and the 1-2 groove. The second direction is a direction aligned in the direction of the optical axis and parallel to the straight line connecting the center of the 1-1 groove and the center of the 1-2 groove, The camera module wherein the 1-1 groove and the 1-2 groove superimpose the first coil in a first direction perpendicular to the optical axis direction and the second direction.

2. The camera module according to claim 1, wherein the 1-1 groove and the 1-2 groove overlap with at least a portion of the first drive magnet in the second direction.

3. It includes a first yoke positioned between the first lens assembly and the first drive magnet, The camera module according to claim 2, wherein the 1-1 groove and the 1-2 groove overlap with at least a portion of the first yoke in the second direction.

4. The camera module according to claim 3, wherein the first guide portion and the housing are integrally formed.

5. The first lens assembly includes a first sensing magnet for sensing the movement of the first lens assembly, The first sensing magnet is positioned on a surface different from the surface on which the first driving magnet is positioned. The camera module according to any one of claims 1 to 4, wherein the length of the first sensing magnet in the optical axis direction is longer than the travel distance of the first lens assembly in the optical axis direction.

6. A third-first yoke is positioned between the first lens assembly and the first sensing magnet, The aforementioned 3-1 yoke is The camera module according to claim 5, which is arranged in a letter shape to enclose three sides of the first sensing magnet.

7. Includes a second guide portion disposed within the housing and guiding the movement of the second lens assembly in the optical axis direction, The second guide portion includes a second-first groove and a second-second groove for guiding the movement of the second lens assembly, The 1-1 groove and the 2-1 groove do not overlap each other in the optical axis direction. In the optical axis direction, the length of the first-to-second groove is longer than the length of the first lens assembly. The camera module according to claim 5, wherein the length of the second-2 groove in the optical axis direction is longer than the length of the second lens assembly.

8. comprising a second drive magnet disposed on the second lens assembly, It includes a second coil positioned opposite the second drive magnet, In a second direction perpendicular to the optical axis, the second drive magnet is positioned between the 2-1 groove and the 2-2 groove. The second direction is parallel to the optical axis direction and parallel to the straight line connecting the center of the second-first groove and the center of the second-second groove. The camera module according to claim 7, wherein the 2-1 groove and the 2-2 groove superimpose the 2 coil in a first direction perpendicular to the optical axis direction and the 2 direction.

9. The second lens assembly includes a second sensing magnet for sensing the movement of the second lens assembly, The second sensing magnet is positioned on a surface different from the surface on which the second driving magnet is positioned. The camera module according to claim 8, wherein the length of the second sensing magnet in the optical axis direction is longer than the travel distance of the second lens assembly in the optical axis direction.

10. It includes a second guide portion formed within the housing that guides the movement of the second lens assembly in the optical axis direction, The second guide portion includes a second-first groove and a second-second groove for guiding the movement of the second lens assembly. The 1-1 groove and the 2-1 groove do not overlap each other in the optical axis direction. In the optical axis direction, the length of the first-to-second groove is longer than the length of the first lens assembly. The camera module according to claim 5, wherein the length of the second-2 groove in the optical axis direction is longer than the length of the second lens assembly.

11. The camera module according to claim 1, wherein the first coil is disposed on the first substrate.

12. The housing includes a second substrate, The first substrate is arranged on one side of the housing, The camera module according to claim 1, wherein the second substrate is disposed on the other side of the housing.

13. The first lens assembly includes a first lens barrel and a first side surface located on one side of the first lens barrel. The second lens assembly includes a second lens barrel and a second side surface located on one side of the second lens barrel. The camera module according to claim 1, wherein the first side surface of the first lens barrel and the second side surface of the second lens barrel are arranged in opposite directions to each other.

14. The first side surface of the first lens barrel is formed in the shape of a rectangular plate and guides the movement of the first lens barrel in the direction of the optical axis, The camera module according to claim 13, wherein the second side surface of the second lens barrel is formed in the shape of a rectangular plate and guides the movement of the second lens barrel in the direction of the optical axis.

15. housing; A substrate placed on the housing; A lens assembly positioned within the housing; A drive magnet positioned on the lens assembly; A coil positioned opposite the drive magnet; A guide portion disposed within the housing and guiding the movement of the lens assembly in the optical axis direction; and A sensor that is separated from the lens assembly, senses the position of the lens assembly in the optical axis direction, and is electrically connected to the substrate; The sensor includes two sensors spaced apart in the direction of the optical axis, The guide portion includes a first-first groove and a second groove for guiding the movement of the lens assembly. In a second direction perpendicular to the optical axis, the drive magnet is positioned between the 1-1 groove and the 1-2 groove. The second direction is a direction aligned in the direction of the optical axis and parallel to the straight line connecting the center of the 1-1 groove and the center of the 1-2 groove, A camera device wherein the 1-1 groove and the 1-2 groove superimpose the coil in a first direction perpendicular to the optical axis and the second direction.

16. The camera device according to claim 15, further comprising a yoke disposed between the lens assembly and the drive magnet.

17. The camera device according to claim 15, wherein the 1-1 groove and the 1-2 groove overlap with at least a portion of the drive magnet in the second direction.

18. The camera device according to claim 16, wherein the 1-1 groove and the 1-2 groove overlap with at least a portion of the yoke in the second direction.

19. The camera device according to claim 18, wherein the guide portion and the housing are formed integrally.

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