Camera module including aperture

Abstract

A camera module including an aperture is provided. The camera module includes a lens assembly; the blade group is arranged on the upper surface of the lens assembly and is used for adjusting the diameter of the incident hole of the lens; a rotation driving part connected to the blade group and controlling movement of the blades by rotational motion; a blade connection portion connected to one side of the rotation driving portion and configured to rotate the rotation driving portion; and a linear moving part connected to the blade connecting part, and accommodating a blade driving magnet and a blade driving coil disposed opposite to the blade driving magnet on an outer side of the linear moving part, the camera module adjusts the diameter of the lens incidence hole by linearly moving the linear moving part in the blade driving aperture provided on the first side of the side frame.

Description

[0001] Cross - reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10 - 2023 - 0195178, filed with the Korean Intellectual Property Office on December 28, 2023, and all benefits and all of its content are incorporated herein by reference. Technical field

[0003] The present disclosure relates to a camera module of an electronic device. Background art

[0004] With the development of information technology (IT), electronic devices equipped with camera modules (such as smartphones, tablet personal computers (PCs), laptops, and portable video cameras) are becoming widely popular.

[0005] Camera modules are being miniaturized to be incorporated into electronic devices while integrating various functions. Recently, the mobile market and the small camera market require an aperture comparable to that of a digital single - lens reflex (DSLR) camera.

[0006] However, in the trend of electronic devices becoming lighter and smaller, it is difficult to implement a mechanical aperture in a narrow space. In addition, since power needs to be applied to a yoke located near a coil to perform an aperture operation to fix the position of a magnet, there is a power consumption problem even when the camera module is deactivated. Summary of the invention

[0007] Aspects of the present disclosure provide a camera module that operates as a bistable drive system and includes an aperture using the repulsive force of a magnet.

[0008] Aspects of the present disclosure also provide a camera module including blades that can be fixed in two or more positions using the repulsive force of a magnet and can operate with low power.

[0009] Aspects of the present disclosure also provide a camera module that minimizes an increase in module height and head diameter by linearly operating a blade driving unit.

[0010] However, aspects of the present disclosure are not limited to those described herein. Through reference to the detailed description of the present disclosure given below, the above and other aspects of the present disclosure will become clearer to those of ordinary skill in the art to which the present disclosure pertains.

[0011] According to one aspect of the present invention, there is provided a camera module, comprising: a lens assembly; a vane group disposed on the upper surface of the lens assembly and configured to adjust the diameter of the lens entrance aperture; a rotational drive unit connected to the vane group and configured to control the movement of the vanes through rotational movement; a vane connection unit connected to one side of the rotational drive unit and configured to rotate the rotational drive unit; a linear movement unit connected to the vane connection unit and accommodating a vane drive magnet outside the linear movement unit; and a vane drive coil disposed opposite to the vane drive magnet, wherein, according to the current applied to the vane drive coil, the camera module is configured to adjust the diameter of the lens entrance aperture by linearly moving the linear movement unit within a vane drive aperture provided on a first side of a side frame.

[0012] According to the above-described embodiment of the present disclosure, there is provided a camera module, comprising: a lens assembly; a vane group disposed on the upper surface of the lens assembly, including a plurality of vanes, and configured to adjust the diameter of the lens entrance aperture; an iris cover plate disposed on the upper surface of the vane group and including an aperture at a position corresponding to the lens entrance aperture; a rotational drive unit connected to the plurality of vanes and configured to control the movement of the plurality of vanes through rotational movement; a side base including a vane drive aperture facing the vane drive coil on a first side of the side base; and a vane drive unit configured to linearly move along the vane drive aperture by the vane drive coil to which current is applied, thereby rotating the rotational drive unit.

[0013] According to other embodiments of the present disclosure, there is provided a camera module, comprising: a lens assembly; a vane group disposed on the upper surface of the lens assembly, including a plurality of vanes, and configured to adjust the diameter of the lens entrance aperture of the lens assembly; a rotational drive unit including an internal fixed magnet, the internal fixed magnet being connected to the plurality of vanes, configured to control the movement of the plurality of vanes through rotational movement and fix the positions of the plurality of vanes; a vane cover housing surrounding the rotational drive unit and including a plurality of position-setting magnets inside the vane cover housing; a vane drive coil to which current is applied by a drive chip; and a vane drive unit configured to linearly move according to the amount of current in the vane drive coil, thereby rotating the rotational drive unit.

[0014] It should be noted that the effects of the present disclosure are not limited to the above effects, and other effects of the present disclosure will become apparent from the following description. Description of the Drawings

[0015] By referring to the accompanying drawings and describing the exemplary embodiments of the present disclosure in detail, the above and other aspects and features of the present disclosure will become clearer. In the drawings:

[0016] Figure 1 is a perspective view of a camera module according to an exemplary embodiment of the present disclosure.

[0017] Figure 2 and Figure 3 is Figure 1 a perspective view of a camera module.

[0018] Figure 4 and Figure 5 are respectively Figure 1 a perspective view and a top view of a camera module.

[0019] Figure 6 is a top view of a camera module with the aperture opened to the first stage according to an exemplary embodiment of the present disclosure.

[0020] Figure 7 shows Figure 6 the magnet arrangement of a camera module.

[0021] Figure 8 is Figure 6 a side view of a camera module.

[0022] Figure 9 is a top view of a camera module with the aperture opened to the second stage according to an exemplary embodiment of the present disclosure.

[0023] Figure 10 shows Figure 9 the magnet arrangement of a camera module.

[0024] Figure 11 is Figure 9 a side view of a camera module.

[0025] Figure 12 is a top view of a camera module with the aperture opened to the third stage according to an exemplary embodiment of the present disclosure.

[0026] Figure 13 shows Figure 12 the magnet arrangement of a camera module.

[0027] Figure 14 is Figure 13 a side view of a camera module.

[0028] Figure 15 shows a diagram of an exemplary electronic device including Figure 1 a camera module. Detailed Description

[0029] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the accompanying drawings. Like reference numerals always denote like elements.

[0030] It will be understood that when an element is referred to as being "connected" or "coupled" to another element or "on" another element, the element can be directly connected or coupled to the other element or directly on the other element, or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element or "in contact" with or "contacts" another element (or any form of the term "contact" is used), there are no intervening elements at the point of contact.

[0031] Figure 1 is a perspective view of a camera module according to an exemplary embodiment of the present disclosure, and Figure 2 and Figure 3 is Figure 1 a perspective view of the camera module. Figure 4 and Figure 5 are respectively Figure 1 a perspective view and a top view of the camera module.

[0032] Referring to Figures 1 to 5 , the camera module 1 includes a module cover 11, an iris cover plate 21, a vane cover housing 22, a vane driving unit 40, an autofocus (AF) driving unit (AF driving magnet 63 and AF driving coil 73), an optical image stabilization (OIS) driving unit (first OIS driving magnet 61, second OIS driving magnet 62, first OIS driving coil 71, and second OIS driving coil 72), and a side frame 12.

[0033] The module cover 11 may include an open aperture and may be arranged to cover the camera module 1 from the top in the Z-axis direction. Through this aperture, the lens assembly L, the vane group 30, the iris cover plate 21, and the vane cover housing 22 are exposed. The aperture of the module cover 11 may have a fixed shape that opens in the Z-axis direction, such as a circle or a polygon, to prevent the lens assembly L from falling off.

[0034] The iris cover plate 21 includes an open aperture and covers the lens assembly L and the vane group 30 from the top in the Z-axis direction, and the vane cover housing 22 is formed to surround the rotation driving unit. The diameter of the iris cover plate 21 and the aperture of the iris cover plate 21 are smaller than the aperture of the module cover 11, and the diameter of the aperture of the iris cover plate 21 is larger than the hole formed by the vane group 30.

[0035] The blade cover housing 22 includes: an upper member 22-1 that covers the lens assembly L and the blade group 30, and a lower member 22-2 that covers the side surfaces of the rotation driving unit and the inner base 23. The upper member 22-1 of the blade cover housing 22 may be formed in a cylindrical shape with a uniform diameter, include a protruding shape at a position where a driving magnet is set in the accommodation position, and the lower member 22-2 may be formed in an inserted shape that covers a part of the inner base 23. The lower member 22-2 of the blade cover housing 22 includes a groove H. The groove H may be formed with a predetermined width W (see, for example Figure 6 ), such that a part of the blade driving unit 40 is exposed, thereby allowing the blade driving unit 40 to move.

[0036] The module cover 11 may be formed of, for example, a metal material or a material having a hardness greater than a specific level (such as reinforced plastic).

[0037] Reference Figure 2 , the camera module 1 includes an inner base 23, a side frame 12, a side base 13, a blade group 30, a blade driving unit 40, a lens assembly L, an AF actuator (AF driving magnet 63 and AF driving coil 73), and an OIS actuator (first OIS driving magnet 61, second OIS driving magnet 62, first OIS driving coil 71, and second OIS driving coil 72) located below the module cover 11.

[0038] The inner base 23 and the side frame 12 respectively fix the internal components of the camera module 1 from above the camera module 1 and from the side surfaces of the camera module 1 in the Z-axis direction to prevent the internal components of the camera module 1 from falling off.

[0039] The lens assembly L may include one or more lenses and a lens barrel. The lens may move up and down or tilt within the lens barrel for focusing. The lens may be moved by an AF driving unit (AF driving magnet 63 and AF driving coil 73) or an OIS driving unit (first OIS driving magnet 61, second OIS driving magnet 62, first OIS driving coil 71, and second OIS driving coil 72). At the same time, the lens assembly L may collect light incident from the outside and send the incident light to an image sensor placed on a printed circuit board (PCB) below the lens barrel. In some embodiments, one or more lenses may be implemented in the lens assembly L. The lens barrel may surround the lens and may provide an optical path for sending the light incident through the lens to the image sensor.

[0040] Reference Figures 2 to 5, the side frame 12 is arranged to surround the side of the camera module 1. The side frame 12 includes four apertures on its four sides respectively, and drive coils arranged in the apertures. For example, the blade drive coil 52 of the blade drive unit 40 is arranged on the first side of the side frame 12, the AF drive coil 72 and the Hall sensor HS are arranged on the second side of the side frame 12, and the first OIS drive coil 71 and the second OIS drive coil 72 are arranged on the third side and the fourth side of the side frame 12 respectively. In some embodiments, the third side and the fourth side where the first OIS drive coil 71 and the second OIS drive coil 72 are arranged may be adjacent sides, but not opposite sides. For example, if the third side extends along the X-axis direction, the fourth side may extend along the Y-axis direction and may not be parallel to the third side in the X-axis direction.

[0041] The first side where the blade drive coil 52 is arranged and the second side where the AF drive coil 73 is arranged may be opposite to the third side and the fourth side where the first OIS drive coil 71 and the second OIS drive coil 72 are arranged respectively.

[0042] Reference Figure 3 , the side base 13 is arranged inside the side frame 12 to surround the side of the camera module 1. An open blade drive aperture may be arranged on the first side of the side base 13 to allow the linear movement of the blade drive unit 40. The blade drive aperture may be arranged to face the blade drive coil 52 of the side frame 12. The blade drive aperture may be opened to a width D (where D is a real number greater than 0) in the X-axis direction. The width of the blade drive unit 40 in the X-axis direction is less than that of the blade drive aperture. The blade drive unit 40 may be arranged in the blade drive aperture and may linearly move along the X-axis direction. The blade drive unit 40 may be fixed at each of multiple positions (such as D1, D2, and D3) according to the placement of the first internal fixed magnet I1 and the second internal fixed magnet I2 (see, for example Figure 7 ).

[0043] The blade group 30 may include multiple blades, for example, two wings or six wings. Alternatively, the blade group 30 may include 3, 4, 5, or N wings (where N is a natural number).

[0044] The blade driving unit 40 may include a blade connecting part 41 and a linear moving part 42. The blade connecting part 41 connects the blade group 30 to the linear moving part 42. The blade connecting part 41 is fixedly connected to one side at the bottom of the blade group 30, and the blade group 30 can move according to the movement of the blade connecting part 41. As the blade connecting part 41 moves along the groove H, the plurality of wings can rotate in a predetermined direction (e.g., clockwise or counterclockwise). For example, due to the movement of the blade connecting part 41, the arrangement of the blade group 30 can be changed, so as to change the lens incident hole. The lens incident hole is formed by the blade group 30 as an aperture above the lens assembly L, and the amount of light incident on the lens from the outside can be adjusted according to the diameter R of the lens incident hole.

[0045] The linear moving part 42 includes a recessed container on its first side, and a blade driving magnet 51 is disposed in the container. For example, a blade driving coil 52 may be disposed outside facing the blade driving magnet 51. The blade driving coil 52 may be, for example, a bistable voice coil. By changing the current applied to the blade driving coil 52, the linear moving part 42 can linearly move along the blade driving aperture, and the blade connecting part 41 can linearly move along the groove H. The blade group 30 can adjust the size of the lens incident hole according to the movement of the blade connecting part 41.

[0046] In some embodiments, the linear moving part 42 may include a moving element on its inner side facing the lens assembly L. For example, the moving element may be implemented as at least one ball to facilitate the movement of the linear moving part 42. The first side of the lens assembly L may further include a guide rail that guides the movement of the moving element on the first side of the lens assembly L.

[0047] The AF driving magnet 63 may be disposed on the second side of the side base 13, and the first OIS driving magnet 61 and the second OIS driving magnet 62 may be respectively disposed on the third side and the fourth side of the side base 13. The AF driving coil 73 may be disposed outside facing the AF driving magnet 63, the first OIS driving coil 71 may be disposed outside facing the first OIS driving magnet 61, and the second OIS driving coil 72 may be disposed outside facing the second OIS driving magnet 62.

[0048] The AF driving unit (AF driving magnet 63 and AF driving coil 73) can control the AF operation by applying a current to the AF driving coil 73 and controlling the attraction / rejection between the AF driving coil 73 and the AF driving magnet 63. The OIS driving unit (first OIS driving magnet 61, second OIS driving magnet 62, first OIS driving coil 71, and second OIS driving coil 72) can apply separate currents to the first OIS driving coil 71 and the second OIS driving coil 72, and control the placement of the lens in the X, Y, and Z axis directions through the attraction / rejection between the first OIS driving magnet 61 and the first OIS driving coil 71, and between the second OIS driving magnet 62 and the second OIS driving coil 72, thereby controlling the optical image stabilization operation against hand shake or vibration.

[0049] In some embodiments, the vane driving magnet 51, the first OIS driving magnet 61, the second OIS driving magnet 62, and the AF driving magnet 63 can be implemented as bipolar magnets. For example, the vane driving magnet 51, the first OIS driving magnet 61, and the second OIS driving magnet 62 can include a multi-pole magnet with alternating polarities along the moving direction. In some embodiments, the bipolar magnet can be implemented such that opposite polarities are combined on its front and back surfaces. If a magnet with an N pole (on its front surface) and an S pole (on its back surface) combined is the first stage, and a magnet with an S pole (on its front surface) and an N pole (on its back surface) combined is the second stage, then a multi-pole magnet can be obtained by alternately connecting the first-stage pole magnet and the second-stage pole magnet.

[0050] In some embodiments, the vane driving coil 52, the first OIS driving coil 71, the second OIS driving coil 72, and the AF driving coil 73 can be formed into an annular shape with a hollow center. In some embodiments, each of the vane driving coil 52, the first OIS driving coil 71, the second OIS driving coil 72, and the AF driving coil 73 can also include a Hall sensor (not shown) at the center to sense the position change between the corresponding driving coil and the corresponding driving magnet.

[0051] The PCB can include an image sensor, which is disposed on the upper surface of the PCB. The image sensor can be disposed on the PCB corresponding to the lower part of the lens barrel of the lens assembly L. The PCB can be electrically connected to the driving chip through a flexible board connected to one side of the PCB. The driving chip can receive power and control signals from the outside to supply power to the camera module 1, can generate camera module driving signals, and can send the raw image data generated by the image sensor to an external device.

[0052] In some embodiments, the linear movement portion 42 of the blade driving portion 40 linearly moves along the blade driving aperture. For example, the blade group 30 can be opened in multiple stages. Hereinafter, adjusting the diameter R of the lens entrance aperture in three stages will be described, but the present disclosure is not limited thereto. Obviously, the blade driving portion 40 can also be configured to adjust the diameter R of the lens entrance aperture in more than three stages.

[0053] Figure 6 is a top view of a camera module in which the aperture is opened to the first stage according to an exemplary embodiment of the present disclosure. Figure 7 shows Figure 6 the magnet arrangement of the camera module, and Figure 8 is Figure 6 a side view of the camera module.

[0054] Referring to Figure 6 , Figure 7 and Figure 8 , in the first stage, the diameter R of the lens entrance aperture created by the blade group 30 can be set to R1. To set the diameter R of the lens entrance aperture to R1, the camera module 1 can adjust the current applied to the blade driving coil 52 such that the blade driving portion 40 is disposed on one side of the blade driving aperture. For example, the blade connection portion 41 can be disposed on the left side of the groove H in the X-axis direction, and the linear movement portion 42 can be disposed on the left side of the blade driving aperture in the X-axis direction.

[0055] The blade cover housing 22 can include a first position setting magnet P1, a second position setting magnet P2, and a third position setting magnet P3 inside thereof. The blade cover housing 22 includes a first outer concave region N1 and a second outer concave region N2 on its inner surface. The first outer concave region N1 and the second outer concave region N2 are, for example, oppositely disposed with respect to the central axis of the lens entrance aperture, and the first position setting magnet P1, the second position setting magnet P2, and the third position setting magnet P3 can be received in the first concave region N1 and the second concave region N2. The first position setting magnet P1 and the second position setting magnet P2 can be spaced apart within the first outer concave region N1. Each of the first concave region N1 and the second concave region N2 includes three depressions with uniform dimensions. The first concave region N1 and the second concave region N2 can have the same shape and the same number of depressions to facilitate the assembly process of the camera module 1.

[0056] The first outer concave region N1 can receive the first position setting magnet P1 and the second position setting magnet P2 in two depressions on either side of the central depression. The second outer concave region N2 can receive the third position setting magnet P3 in the central depression.

[0057] The blade driving unit 40 further includes a rotation driving unit 44, and the rotation driving unit 44 is connected to the ends of a plurality of blades. The rotation driving unit 44 is connected to one end of the blade connection unit 41 and rotates within the upper member 22-1 of the blade cover housing 22 according to the movement of the linear movement unit 42. The rotation driving unit 44 includes a moving member 45, and the moving member 45 is disposed in the blade cover housing 22. Thus, when the moving member 45 rotates, the rotation driving unit 44 is driven to rotate by the moving member 45. The moving member 45 may be in the form of, for example, a sphere.

[0058] The rotation driving unit 44 includes a plurality of internal recessed areas, and the internal recessed areas accommodate a first internal fixed magnet I1 and a second internal fixed magnet I2.

[0059] A current is applied to the blade driving coil 52, so as to move the linear movement unit 42 by using the attractive force or repulsive force with the blade driving magnet 51. As the linear movement unit 42 moves, the blade connection unit 41 also linearly moves, and further causes the rotation driving unit 44 to rotate. Then, the rotation of the rotation driving unit 44 moves the blade group 30, thereby adjusting the diameter R of the lens incident hole. However, even when the linear movement unit 42 moves, due to the attractive forces between the first position setting magnet P1, the second position setting magnet P2, and the third position setting magnet P3 and the first internal fixed magnet I1 and the second internal fixed magnet I2, the position of the rotation driving unit 44 is fixed. A current is applied to the blade driving coil 52 only when the linear movement unit 42 moves during blade driving, and no current is applied when the position of the rotation driving unit 44 is fixed. In this way, the power consumption of aperture adjustment can be minimized.

[0060] The rotation driving unit 44 disposed on the upper surface of the lens of the lens assembly L includes two internal grooves. The internal grooves of the rotation driving unit 44 are disposed opposite to each other based on the central axis of the lens incident hole, and the internal grooves accommodate a first internal fixed magnet I1 and a second internal fixed magnet I2. The first internal fixed magnet I1 is positioned and fixed to face the first position setting magnet P1 or the second position setting magnet P2 due to the attractive force or repulsive force. The second internal fixed magnet I2 is positioned and fixed to face the third position setting magnet P3 due to the attractive force or repulsive force.

[0061] As Figure 7 and Figure 8As shown, by moving the linear movement part 42 to position D1, the blade connection part 41 can be moved to position W1, so that the first internal fixed magnet I1 of the rotation drive part 44 can be fixed due to the attraction force with the first position setting magnet P1. In other words, the first internal fixed magnet I1 of the rotation drive part 44 can be fixed to face the first position setting magnet P1 in the first external concave area N1, and the second internal fixed magnet I2 can be set to face the first side concave of the second external concave area N2 where the third position setting magnet P3 does not exist.

[0062] Figure 9 is a top view of a camera module with the aperture opened to the second stage according to an exemplary embodiment of the present disclosure. Figure 10 shows Figure 9 the top view of the magnet arrangement of the camera module, and Figure 11 is Figure 9 the side view of the camera module. For convenience, the description of the content overlapping with that described above with reference to Figures 6 to 8 will not be repeated.

[0063] Referring to Figure 9 、 Figure 10 and Figure 11 , in the second stage, the diameter R of the lens incident hole created by the blade group 30 can be set to R2, and R2 is greater than Figure 6 R1. To set the diameter R of the lens incident hole to R2, the camera module 1 can adjust the current applied to the blade drive coil 52 so that the blade drive part 40 is set at the center of the blade drive aperture. For example, the blade connection part 41 can be set at a position W2 corresponding to the center part of the groove H, and the linear movement part 42 can be set at a position D2 corresponding to the center part of the blade drive aperture.

[0064] As Figure 9 and Figure 10 shown, by moving the linear movement part 42 to position D2, the blade connection part 41 can be moved to position W2, so that the second internal fixed magnet I2 of the rotation drive part 44 is fixed due to the attraction force with the third position setting magnet P3. For example, the second internal fixed magnet I2 can be fixed to face the third position setting magnet P3 in the second external concave area N2, and the first internal fixed magnet I1 can be set to face the center concave between the first position setting magnet P1 and the second position setting magnet P2 in the first external concave area N1.

[0065] Figure 12 is a top view of a camera module with the aperture of the camera module according to an exemplary embodiment of the present disclosure opened to the third stage, Figure 13 is a top view showing Figure 12 the magnet arrangement of the camera module, and Figure 14Yes Figure 13 Side view of the camera module. For convenience, the description of the content overlapping with that described above with reference to Figures 6 to 8 will be omitted.

[0066] Reference Figure 12 、 Figure 13 and Figure 14 , in the third stage, the diameter R of the lens entrance hole created by the blade group 30 can be set to R3. R3 is greater than Figure 6 R1 of Figure 9 and R2 of . To set the diameter R of the lens entrance hole to R3, the camera module 1 can adjust the current applied to the blade drive coil 52 so that the blade drive unit 40 can be set on the other side of the blade drive aperture. For example, the blade connection unit 41 can be set on the right side of the groove H in the X-axis direction, i.e., at position W3, and the linear movement unit 42 can be set on the right side of the blade drive aperture in the X-axis direction, i.e., at position D3.

[0067] As Figure 13 and Figure 14 shown, by moving the linear movement unit 42 to position D3, the blade connection unit 41 can be moved to position W3, so that the first internal fixed magnet I1 of the rotary drive unit 44 can be fixed due to the attraction force with the second position setting magnet P2. For example, the first internal fixed magnet I1 of the rotary drive unit 44 can be fixed to face the second position setting magnet P2 in the first external concave area N1, and the second internal fixed magnet I2 can be set to face the second side concave of the second external concave area N2 where the third position setting magnet P3 does not exist.

[0068] Therefore, the camera module 1 can convert the linear movement of the linear movement unit 42 into the rotational movement of the rotary drive unit 44, thereby adjusting the aperture ratio of the blade group 30. The blade drive unit 40 is arranged on a side of the side frame 12 different from the side where the OIS actuator (first OIS drive magnet 61, second OIS drive magnet 62, first OIS drive coil 71, and second OIS drive coil 72) and the AF actuator (AF drive magnet 63 and AF drive coil 73) are installed. Since the linear movement of the linear movement unit 42 only requires moving elements or moving guides, this arrangement does not significantly affect the height of the camera module 1 in the Z-axis direction and minimizes the increase in the head size. In addition, by applying current only during the adjustment of the lens entrance hole and then fixing the position of the blade group 30 using the attraction and repulsion forces of the magnets, the power consumption of the blade drive can be minimized.

[0069] Figure 15 Is a diagram showing an exemplary electronic device including a Figure 1 camera module.

[0070] ReferenceFigure 15 , the camera module 1 can be embedded in the electronic device 1000. The electronic device 1000 can include at least one of, for example, a smart phone, a tablet personal computer (PC), a mobile phone, a video phone, an e - book reader, a desktop PC, a laptop computer, a netbook computer, a workstation, a server, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a mobile medical device, a camera, and a wearable device. Here, the wearable device can include at least one of an accessory - type device (such as a watch, a ring, a bracelet, an anklet, a necklace, glasses, contact lenses, or a head - mounted device (HMD)) integrated into fabric or clothing (such as e - clothing), a body - attached type (such as a skin pad or a tattoo), or an implantable device (such as an implantable circuit).

[0071] The electronic device 1000 can also be, for example, a household appliance. Here, the household appliance can include, for example, a television (TV), a digital video disc (DVD) player, an audio system, a refrigerator, an air conditioner, a vacuum cleaner, an oven, a microwave oven, a washing machine, an air purifier, a set - top box, a home automation control panel, a security control panel, a TV box (such as, Samsung HomeSync TM , Apple TV TM or Google TV TM ), a game console (such as, Xbox TM or PlayStation TM ), an electronic dictionary, an electronic key, a video camera, and a digital photo frame, among others.

[0072] The electronic device 1000 can be, for example, a vehicle. At least some of the multiple in - vehicle cameras can include Figures 1 to 13 the camera module 1. The vehicle can use the multiple in - vehicle cameras to provide the driver with various information about the interior or the surrounding environment of the vehicle, and can automatically identify objects or people in each video to provide the information required for autonomous driving.

[0073] Referring to Figure 15 , the electronic device 1000 can be implemented as, for example, a mobile device such as a smart phone. The electronic device 1000 can include a rear case and multiple camera modules with different functions in specific areas. In Figure 15 this example, the electronic device 1000 can include four camera modules, namely, a first camera module 101 to a fourth camera module 104, but the number and arrangement of the camera modules in the electronic device 1000 can vary.

[0074] For example, the first camera module 101 can be used as a main wide - angle camera, the second camera module 102 can be used as an ultra - wide - angle camera, and the third camera module 103 and the fourth camera module 104 can be used as telephoto cameras.

[0075] The image sensor of the first camera module 101 may have a Red Green Green Blue (RGGB) basic Bayer pattern, a four-Bayer pattern in which Red Green Blue (RGB) is arranged in a 2×2 layout, or a pattern in which RGB is configured in a 4×4 layout to jointly form a color filter of a Bayer pattern. The size of the image sensor of the first camera module 101 may be larger than the size of the image sensors of the second camera module 102, the third camera module 103, and / or the fourth camera module 104.

[0076] For example, the first camera module 101 may be implemented as Figures 1 to 13 any one of the camera modules. However, the second camera module 102, the third camera module 103, and the fourth camera module 104 may not be implemented as Figures 1 to 13 described therein. In some embodiments, considering the reasonable cost and space constraints of each camera module, at least one of the multi-camera modules may be implemented as Figures 1 to 14 described therein. Such a configuration may consider an improvement in camera performance that has the greatest impact on the image quality of each camera module.

[0077] Embodiments of the present disclosure have been described above with reference to the accompanying drawings, but the present disclosure is not limited thereto and may be implemented in various different forms. It will be understood that the present disclosure may be implemented in other specific forms without changing the technical spirit or gist of the present disclosure. Therefore, it should be understood that the embodiments described herein are illustrative in all aspects and not restrictive.

Claims

1. A camera module, comprising: Lens assembly; a blade assembly, disposed on an upper surface of the lens assembly and configured to adjust a diameter of the lens entrance aperture; a rotation drive unit connected to the blade assembly and configured to control the movement of the blades through a rotational motion; a blade connection portion connected to one side of the rotation drive portion and configured to rotate the rotation drive portion; a linear moving portion connected to the blade connecting portion and accommodating a blade driving magnet on an outer side of the linear moving portion; as well as a blade driving coil, arranged to be opposite to the blade driving magnet, The camera module is configured to adjust the diameter of the lens entrance hole by linearly moving the linear moving portion within a blade-driven aperture based on a current applied to the blade-driven coil, and the blade-driven aperture is disposed on a first side of the side frame.

2. The camera module according to claim 1, wherein: The camera module is configured to apply a current to the blade driving coil only when the linear moving portion is linearly moved.

3. The camera module according to claim 1, wherein: The rotational drive portion includes an internal fixed magnet.

4. The camera module according to claim 3, wherein: The position of the internal fixing magnet is fixed by an attractive force with at least one of the plurality of position setting magnets.

5. The camera module according to claim 4, further comprising: a blade cover housing, covering the lens assembly, the blade assembly and the rotation drive unit, Wherein, the plurality of position setting magnets are accommodated inside the blade cover housing.

6. A camera module, comprising: Lens assembly; a blade group, disposed on the upper surface of the lens assembly, including a plurality of blades and configured to adjust the diameter of the lens entrance hole; an iris cover plate, disposed on an upper surface of the blade assembly and comprising an aperture at a position corresponding to the lens entrance hole; a rotation drive unit connected to the plurality of blades and configured to control movement of the plurality of blades through a rotational motion; a side base including a blade drive aperture on a first side of the side base, the blade drive aperture facing the blade drive coil; as well as The blade driving unit linearly moves along the blade driving aperture by the blade driving coil to which current is applied, thereby rotating the rotation driving unit.

7. The camera module according to claim 6, wherein: The blade driving portion includes a blade connecting portion connected to the rotation driving portion and a linear moving portion connected to the blade connecting portion and accommodating a blade driving magnet facing the blade driving coil at an outer side of the linear moving portion.

8. The camera module according to claim 6, wherein: The rotation drive portion includes a first internal fixed magnet received in the first internal groove and a second internal fixed magnet received in the second internal groove.

9. The camera module according to claim 8, further comprising: The blade cover housing covers the lens assembly, the blade group and the rotation driving part, and includes a groove opened at a position corresponding to the blade driving part.

10. The camera module according to claim 9, wherein: The blade cover housing comprises: a first outer recessed area formed on an inner side of the upper member; and A second outer recessed area is formed at an inner side of the upper member and is disposed opposite to the first outer recessed area with respect to a central axis of the lens incident hole.

11. The camera module according to claim 10, in, Each of the first outer recessed region and the second outer recessed region includes a plurality of recesses of uniform size, and Wherein, a position setting magnet is accommodated in at least one of the plurality of recesses.

12. The camera module according to claim 7, wherein: The camera module is configured to apply a current to the blade drive coil when the linear moving portion moves, and not to apply a current to the blade drive coil when the linear moving portion does not move.

13. A camera module, comprising: Lens assembly; a blade assembly, disposed on an upper surface of the lens assembly, comprising a plurality of blades and configured to adjust a diameter of a lens entrance hole of the lens assembly; a rotation drive unit including an internal fixed magnet connected to the plurality of blades, controlling movement of the plurality of blades through rotational motion and fixing positions of the plurality of blades; a blade cover housing surrounding the rotary drive portion and including a plurality of position setting magnets on an inner side of the blade cover housing; A blade driving coil, to which a current is applied by a driving chip; as well as The blade driving unit linearly moves according to the amount of current in the blade driving coil, thereby rotating the rotation driving unit.

14. The camera module according to claim 13, wherein: The blade cover housing comprises: a first outer recessed area accommodating the first position setting magnet and the second position setting magnet spaced apart and adjacent to each other, and The second outer recessed area accommodates a third position setting magnet at a position opposite to the first outer recessed area relative to the central axis of the lens entrance hole.

15. The camera module according to claim 14, wherein: When the blade driving part is linearly moved by the amount of current of the blade driving coil, the internal fixed magnet fixes the position of the rotation driving part based on an attractive force with one of the first position setting magnet, the second position setting magnet, and the third position setting magnet.

16. The camera module according to claim 15, wherein: The camera module applies a current to the blade driving coil when the blade driving part moves, and the camera module does not apply a current to the blade driving coil when the blade driving part does not move.

17. The camera module according to claim 13, wherein: The blade driving unit comprises: a blade connection portion connected to the rotation drive portion; and The linear moving portion is connected to the blade connecting portion and accommodates a blade driving magnet at an outer side of the linear moving portion.

18. The camera module according to claim 17, wherein: The blade drive magnet and the first, second and third position setting magnets are bipolar magnets.

19. The camera module according to claim 17, wherein: The linear moving portion includes a moving element on a rear surface thereof facing the rotary drive portion.

20. The camera module according to claim 17, wherein: The blade cover housing includes a groove opened to expose the blade connecting portion.

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