Camera device and intelligent terminal
By designing parallel lens components and imaging chip components in smart terminals, combining optical path adjustment and electromagnetic thrust drive, the problem of miniaturization of telephoto camera equipment in smart terminals is solved, and a smaller and more energy-efficient camera equipment is realized, and shooting is improved. Performance and service life.
Patent Information
- Application Number
- CN202420390880.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-28
Smart Images

Figure CN222283374U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of camera technology, and in particular, relates to a camera device and a smart terminal having the camera device. Background Art
[0002] Various commonly used intelligent terminals, such as smart phones, tablet computers, etc., are usually equipped with built-in camera devices to enable shooting functions anytime and anywhere.
[0003] In the prior art, the built-in camera device of the smart terminal is usually the same as the traditional independent camera device, including a lens assembly, a focus mechanism, an anti-shake mechanism, and an imaging chip assembly. Due to the size limitation of the smart terminal, these components of the built-in camera device must be further miniaturized compared to the similar components of the independent camera device. Therefore, the built-in camera device of the existing smart terminal is usually designed to be similar in structure to the independent camera device, but proportionally reduced in size.
[0004] In recent years, as consumers continue to pursue smart terminals that are lighter, thinner, shorter and smaller, the requirements for further miniaturization of smart terminals have become increasingly stringent. However, the built-in camera equipment of smart terminals cannot be scaled down indefinitely, otherwise it will affect its necessary optical and mechanical properties. In particular, for telephoto cameras used for telephoto or ultra-macro photography, a long optical path is required to achieve clear imaging. In the prior art, in order to form a long optical path, it is necessary to ensure that the telephoto camera equipment has a sufficient overall length. Therefore, it is particularly difficult to miniaturize the telephoto camera equipment and build it into a smart terminal.
[0005] Therefore, it is necessary to provide a camera device with a more novel structure and a smart terminal with the camera device built therein to solve the above-mentioned defects in the prior art. Summary of the invention
[0006] The purpose of the present application is to provide a camera device with a more novel structure and a smart terminal with the camera device, so as to solve the problem that it is increasingly difficult to miniaturize built-in camera devices, especially telephoto camera devices, in existing smart terminals.
[0007] In order to solve the above problems, an embodiment of the present application provides a camera device, which includes a lens assembly, a main shell, an imaging chip assembly, an optical path adjustment component, a magnet assembly and a coil assembly; the lens assembly and the magnet assembly are both assembled on the main shell, the coil assembly is movably mounted in the magnet assembly, the imaging chip assembly and the coil assembly are fixed to each other, and the imaging chip assembly is located on one side of the optical axis direction of the lens assembly; the optical path adjustment component is mounted in the main shell, for receiving the optical signal collected by the lens assembly and transmitting the optical signal to the imaging chip assembly for imaging; the magnet assembly and the coil assembly are used to generate electromagnetic thrust to drive the coil assembly to drive the imaging chip assembly to move; the main shell is also formed with an avoidance portion, and the magnet assembly is partially embedded in the avoidance portion.
[0008] In some embodiments, the camera device also includes an auto focus (AF) device, the lens assembly is installed in the AF device, and the AF device is assembled on the main housing; the lens assembly includes at least one fixed lens unit and at least one movable lens unit, and the AF device is used to drive the movable lens unit to move for focusing.
[0009] In some embodiments, the magnet assembly includes a magnet bracket and a magnet fixedly mounted on the magnet bracket, and the coil assembly includes a coil bracket movable relative to the magnet bracket and a coil fixedly mounted on the coil bracket; the imaging chip assembly is fixedly mounted in the coil bracket, and the coil and the magnet are used to generate electromagnetic thrust to drive the imaging chip assembly to move via the coil bracket.
[0010] In some embodiments, the imaging chip assembly is sleeved in the coil support, and the coil support is sleeved in the magnet support.
[0011] In some embodiments, the imaging device further includes a ball bearing, which is rotatably mounted between the magnet assembly and the coil assembly.
[0012] In some embodiments, the magnet bracket is provided with a first ball hole, the coil bracket is provided with a second ball hole corresponding to the first ball hole, and the balls are rollably embedded in the first ball hole and the second ball hole.
[0013] In some embodiments, the avoidance portion is a notch formed on the main shell, and the magnet bracket is partially embedded in the avoidance portion.
[0014] In some embodiments, the camera device also includes TSA (full name Trace suspension assembly), the TSA includes a TSA outer frame, a TSA circuit board and a cantilever unit, the cantilever unit includes a plurality of cantilevers made of elastic and conductive material, the TSA circuit board is arranged inside the TSA outer frame, and the plurality of cantilevers are connected between the TSA outer frame and the TSA circuit board; the imaging chip assembly and the TSA circuit board are fixed to each other and electrically connected.
[0015] In some embodiments, the imaging device further includes a top cover, which includes a top plate and a clip-on plate disposed at an edge of the top plate; the coil assembly, the imaging chip assembly, and the TSA are all clamped between the magnet assembly and the top plate, and the clip-on plate is fixed to the magnet bracket.
[0016] Another aspect of the present application also provides a smart terminal, which includes the camera device described in any one of the aforementioned embodiments.
[0017] Compared with the prior art, the camera device and the smart terminal having the camera device provided by the above preferred embodiment of the present application have more superior technical effects, for example: (1) The lens assembly and the imaging chip assembly are not coaxially arranged, but are arranged in parallel, so that the imaging chip assembly is located on one side of the optical axis direction of the lens assembly 1, and the optical path adjustment member receives the optical signal collected by the lens assembly and adjusts its optical path to transmit the optical signal to the imaging chip assembly for imaging. Therefore, the lens assembly 1 and the imaging chip assembly do not need to be arranged on the same straight line, that is, on the common optical axis, but can be arranged roughly in the same plane. This can significantly reduce the overall length of the camera device in the optical axis direction, significantly reduce the difficulty of assembling the camera device, and contribute to the further miniaturization of the smart terminal. (2) The lens assembly is divided into a fixed lens unit and a movable lens unit. When the AF operation is required, only the movable lens unit is driven to move, and there is no need to drive the entire lens assembly to move, thereby reducing the load of the AF device, which is beneficial to energy saving, extending the service life and improving the sensitivity of AF operation. In addition, the at least two lens units cooperate with the optical path adjustment member to increase the optical path through multiple reflections, which helps to achieve large aperture and telephoto macro shooting effects. (3) The imaging chip assembly is sleeved inside the coil bracket, and the coil bracket is sleeved inside the magnet bracket. In this way, the imaging chip assembly and the optical image stabilization mechanism are integrated together to form a chip sinking structure, which greatly reduces the overall thickness of the imaging chip assembly and the optical image stabilization mechanism in the above-mentioned Z-axis direction, helps to simplify the structure and save costs. (4) Using the TSA circuit board as the circuit board of the imaging chip assembly, there is no need to set up a circuit board for the imaging chip assembly, which can further reduce the overall thickness of the imaging chip assembly and TSA, and helps to further simplify the structure and save costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a structural schematic diagram of a camera device provided by a preferred embodiment of the present application.
[0020] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the camera device shown.
[0021] Figure 3 yes Figure 1 A schematic structural diagram of the main shell of the camera device shown in FIG.
[0022] Figure 4 yes Figure 1 The schematic diagram of the structure of the main shell and the optical path adjustment component in the camera device is shown.
[0023] Figure 5 yes Figure 1 A schematic structural diagram of a magnet bracket in a camera device is shown.
[0024] Figure 6 yes Figure 1 The schematic diagram of the structure in which the TSA outer frame, TSA circuit board and cantilever unit in the camera device are assembled together is shown.
[0025] Figure 7 yes Figure 1 The schematic cross-sectional view of the magnet assembly, coil assembly, ball bearing, imaging chip assembly, and TSA in the camera device shown in the figure after being assembled together.
[0026] Figure 8 yes Figure 1 The diagram shows the optical path adjustment principle of the optical path adjustment member in the imaging device.
[0027] Fig. 9 yes Figure 1 Schematic diagram of the working principle of the camera device shown. DETAILED DESCRIPTION
[0028] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the description of the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0029] The main purpose of the present application is to provide a camera device with a more novel structure and a smart terminal with the camera device, so as to solve the problem that it is increasingly difficult to miniaturize built-in camera devices, especially telephoto camera devices, in existing smart terminals.
[0030] Please see first Figure 1 and Figure 2 In one aspect, a preferred embodiment of the present application provides a camera device, which can be used in smart terminals such as smart phones and tablet computers as a built-in camera device of the smart terminal.
[0031] The camera device includes a lens assembly 1, an automatic focus (Automatic Focus, hereinafter referred to as AF) device 2, a main shell 3, an optical path adjustment component 4, a magnet assembly 5, a coil assembly 6, a ball 7, an imaging chip assembly 8, TSA (full name Trace Suspension Assembly) 9, and a top cover 10.
[0032] The lens assembly 1 includes a first lens unit 11 and a second lens unit 12. The first lens unit 11 and the second lens unit 12 both include at least one optical lens, and the optical axis directions of all the optical lenses included in them are arranged on the same straight line, so that the lens assembly 1 has a single optical axis. The lens units in the lens assembly 1, such as the first lens unit 11 and the second lens unit 12, can adopt existing lens units as long as their shapes and sizes can be assembled into the smart terminal. In this embodiment, it is preferred that the first lens unit 11 is set as a fixed lens unit, and the optical lens with relatively large size and weight is installed in the first lens unit 11; the second lens unit 12 is set as a movable lens unit, and the optical lens with relatively small size and weight is installed in the second lens unit 12. In other embodiments, the lens assembly 1 may also include lens units with different numbers and specifications from those in this embodiment, as long as at least one movable lens unit is included.
[0033] The AF device 2 may be, for example, a voice coil motor, and the lens assembly 1 is installed in the AF device 2. The AF device 2 is used to drive at least one movable lens unit in the lens assembly 1 to move along its own optical axis direction for focusing. For example, in the present embodiment, the first lens unit 11 is preferably fixedly mounted in the AF device 2, and the second lens unit 12 is movably mounted in the AF device 2, and the AF device 2 is configured to be able to drive the second lens unit 12 to move along its own optical axis direction for focusing. The specific structure of the AF device 2, the assembly method with the lens assembly 1, and the working principle of driving the second lens unit 12 to focus can all refer to the prior art. In the present embodiment, driving the second lens unit 12 to focus can be driven by any one of electromagnetic, memory alloy, piezoelectric effect, etc., or by combining two or more of these methods.
[0034] Please also read Figure 3The main housing 3 includes a first transition plate 31, a second transition plate 32, a first end plate 33, a second end plate 34, and two side plates 35. The first transition plate 31 and the second transition plate 32 are connected between the two side plates 35 and are arranged relatively tilted, so that the first transition plate 31, the second transition plate 32 and the two side plates 35 together enclose a containing space with an outwardly expanded opening for accommodating the optical path adjustment member 4. In addition, the length of the first transition plate 31 is preferably greater than the length of the second transition plate 32. The first end plate 33 is connected to the end extending from the first transition plate 31 and is oblique to the first transition plate 31, and the second end plate 34 is connected to the end extending from the second transition plate 32 and is oblique to the second transition plate 32. It can be understood that the first transition plate 31 and the second transition plate 32 are both arranged tilted, which helps to form an avoidance space outside the main housing 3 and reduce the overall size of the camera device. In this embodiment, the edge of each side plate 35 located at the opening of the accommodating space includes a first edge section 351 and a second edge section 352. The first edge section 351 is flush or substantially flush with the first end plate 33, and the second edge section 352 is flush or substantially flush with the second end plate 34. Since the length of the first transition plate 31 is greater than the length of the second transition plate 32, a height difference is formed between the first edge section 351 and the second edge section 352. Each side plate 35 forms a notch 353 at the junction of the first edge section 351 and the second edge section 352 based on the height difference between the two. The shape of the notch 353 is preferably a right-angled notch, which can be used as a evacuation portion for the magnet assembly 5 to be partially embedded during assembly, which helps to further save assembly space and reduce the overall size of the camera device. In addition, a protruding limiting strip 36 is formed on the inner side of the second edge section 352 of the two side plates 35, which is used to limit the optical path adjustment member 4 to prevent the optical path adjustment member 4 from shaking in the main housing 3.
[0035] Please also read Figure 4In this embodiment, the optical path adjustment member 4 is a total reflection prism, which is installed in the above-mentioned accommodation space formed by the main housing 3. The optical path adjustment member 4 has two end surfaces 40 with the same shape and size, a bottom surface 41, a main optical surface 42, a first secondary optical surface 43a, and a second secondary optical surface 43b. Among them, the bottom surface 41 is parallel to the main optical surface 42, and the first secondary optical surface 43a and the second secondary optical surface 43b are oblique to the bottom surface 41 and the main optical surface 42. The two end surfaces 40 are respectively fitted with the inner surfaces of the two side plates 35, and the shapes of the first secondary optical surface 43a and the second secondary optical surface 43b are respectively fitted with the inner surfaces of the first transition plate 31 and the second transition plate 32. The AF device 2 is fixed to the first end plate 33 of the main housing 3 and the first edge section 351 of the two side plates 35, and the optical axis of the lens assembly 1 installed in the AF device 2 is arranged to be perpendicular to the main optical surface 42 and aligned with the main optical surface 42 and the first secondary optical surface 43a. In addition, a light shielding film (not shown in the figure) may be attached to the bottom surface 41 of the optical path adjusting member 4 or coated with ink to prevent external stray light from entering the optical path adjusting member 4 from the bottom surface 41 and causing interference.
[0036] The magnet assembly 5 includes a magnet support 51 and a magnet 52. Figure 5 In this embodiment, the shape of the magnet holder 51 is roughly a rectangular frame, and the magnet 52 is a bar magnet fixed inside the magnet holder 51. Preferably, one of the four frame edges of the magnet holder 51 is configured to match the frame edge 510, and its width and height are configured to be significantly smaller than the other three, so as to better cooperate with the optical path adjustment member 4 during assembly. Based on its smaller size, the optical path adjustment member 4 is allowed to be partially engaged in the magnet holder 51, thereby saving assembly space. The other three frame edges of the magnet holder 51 are provided with recessed magnet grooves 511 on the inner side, and the number of magnets 52 is three, which are fixedly embedded in the three magnet grooves 511 respectively. The magnet holder 51 is provided with a flat plate-shaped bearing portion 512 on the inner side of its four corners, and each bearing portion 512 is provided with a circular hole-shaped first ball hole 513.
[0037] The coil assembly 6 includes a coil support 61 and a coil 62. In this embodiment, the shape of the coil support 61 is roughly a rectangular flat frame, and its shape and size correspond to the magnet support 51, and can be set in the magnet support 51, and can be set in a preset direction (for example Figure 7 and Fig. 9The coil 62 is fixedly mounted on the coil support 61, and the shape, size and number of the coil 62 correspond to the magnet 52. Specifically, in the present embodiment, the coil 62 is a runway-type coil, the size of which corresponds to the magnet 52, and the number is also three; the three coils 62 are respectively mounted on the three sides of the coil 62, and are arranged to align with the three magnets 52, respectively, and the length direction of each coil 62 is parallel to the length direction of the corresponding magnet 52. The specific structure of the coil 62 can be in a variety of forms, such as a winding coil form or a flexible printed coil (FP-COIL) form.
[0038] The balls 7 are preferably insulating balls, and the number is multiple, preferably four in this embodiment. Each ball 7 is sandwiched between the magnet bracket 51 and the coil bracket 61, and each ball 7 is simultaneously embedded in a first ball hole 513 and a second ball hole 610 that are aligned with each other. The size of the ball 7 is slightly smaller than the first ball hole 513 and the second ball hole 610, so that the ball 7 can roll in the corresponding first ball hole 513 and the second ball hole 610, thereby allowing the coil assembly 6 and the magnet assembly 5 to move parallel to each other. In this embodiment, the four balls 7 are arranged in a single layer, and in other embodiments, multiple balls 7 can also be arranged in a multi-layer arrangement. The specific arrangement structure can refer to the prior art.
[0039] The imaging chip assembly 8 includes an image sensor chip 81 and a filter 82. The shape and size of the image sensor chip 81 correspond to those of the coil support 61, and can be fixedly mounted inside the frame structure of the coil support 61. The image sensor chip 81 can be, for example, an existing complementary metal oxide semiconductor (CMOS) chip, and the filter 82 can be any existing filter used in camera equipment, and is fixedly attached to the image sensor chip 81.
[0040] Please also read Figure 6, TSA9 includes a TSA outer frame 91, a TSA circuit board 92, a cantilever unit 93, and a TSA reinforcing plate 94. The TSA outer frame 91 includes an outer frame body 911 and an outer frame extension 912. The outer frame body 911 is a rectangular flat frame body, and its shape and size correspond to the magnet bracket 51, the coil bracket 61 and the support frame 81; the outer frame extension 912 is strip-shaped and extends from one side of the outer frame body 911. The TSA circuit board 92 is a rectangular flat plate and is arranged in the center of the frame structure of the TSA outer frame 91. The cantilever unit 92 includes a plurality of cantilevers (not numbered in the figure), each of which includes a plurality of suspension wires (not numbered in the figure) having a zigzag shape and arranged parallel to each other, connected between the TSA outer frame 91 and the TSA circuit board 92. The suspension wire is made of an elastic and conductive material (such as a metal material), so that the TSA circuit board 92 can establish mechanical and electrical connections with the TSA outer frame 91 through the cantilever unit 92. When the TSA circuit board 92 is subjected to external force, the cantilever unit 92 can allow the TSA circuit board 92 to move relative to the TSA outer frame 91 based on the elasticity of its suspension wire; and when the external force is removed, the cantilever unit 92 can use the elasticity of its suspension wire to drive the TSA circuit board 92 to return to its initial position. The TSA reinforcement plate 94 is a rectangular flat plate made of rigid material and fixed to one side surface of the TSA outer frame 91 to enhance the overall strength; the TSA circuit board 92 and the cantilever unit 93 should be separated from the TSA reinforcement plate 94 by a certain gap to reserve elastic deformation space.
[0041] Please also read Figure 7 When assembling the magnet assembly 5, coil assembly 6, ball bearing 7, imaging chip assembly 8 and TSA 9, the magnet assembly 5, coil assembly 6 and ball bearing 7 can be first assembled together according to the above specific structure, and then the imaging chip assembly 8 is sleeved and fixed inside the frame structure of the coil bracket 61, and the TSA 9 is arranged on the side of the coil bracket 61 facing away from the magnet assembly 5, and then the TSA circuit board 92 and the imaging chip assembly 8 are fixed to each other, and an electrical connection is established between the image sensor chip 81 and the TSA circuit board 92, and the TSA circuit board 92 is used as the circuit board of the imaging chip assembly 8. After completing the above assembly, please refer to Figure 1 Also see Fig. 9 The magnet bracket 51 can be fixed to the second end plate 34 of the main shell 3 and the second edge section 352 of the two side plates 35, that is, the magnet bracket 51 and the AF device 2 are fixed to the main shell 3 in parallel, and the magnet bracket 51 is partially embedded in the avoidance portion formed by the notch 353 of the main shell 3, and the imaging chip assembly 8 is aligned with the primary optical surface 42 and the second secondary optical surface 43b.
[0042] The top cover 10 includes a top plate 101 and a snap-on plate 102 arranged at the edge of the top plate 11. The top plate 101 is in the shape of a rectangular flat plate, and its shape and size correspond to the outer frame body 911 of the TSA9. The snap-on plate 102 is in the shape of a long flat plate, preferably arranged at at least two opposite edges of the top plate 11, and perpendicular to the top plate 101. It can be understood that the top plate 101 and the snap-on plate 102 can be integrally formed. The top cover 10 is covered on the outside of the TSA9, so that the coil assembly 6, the ball 7, the imaging chip assembly 8 and the TSA9 are all clamped between the magnet assembly 5 and the top plate 101, and the snap-on plate 102 of the top cover 10 is snap-fitted and fixed to the outer surface of the magnet bracket 51.
[0043] The camera device 100 can establish electrical and communication connections with the outside world through the outer frame extension 912 of the TSA 9, and the AF device 2 itself can also directly establish electrical and communication connections with the outside world. The specific methods of establishing the above electrical and communication connections can refer to the existing technology and need not be repeated here.
[0044] Please also read Figure 8 and Fig. 9 When using the camera device, use the lens assembly 1 to face the target (not shown in the figure) to collect the optical signal generated by the target. The collected optical signal passes through the lens assembly 1 along the optical axis direction of the lens assembly 1 or in a direction parallel to the optical axis of the lens assembly 1 (that is, in a direction perpendicular to the main optical surface 42 of the optical path adjustment member 4), and then vertically enters the main optical surface 42 of the optical path adjustment member 4. According to the working principle of the total reflection prism in the prior art, at this time, the optical signal will enter the interior of the optical path adjustment member 4 from the main optical surface 42, and then follow Figure 8 and Fig. 9 The optical signal transmission direction shown in the figure generates total reflection on the inner side of the first secondary optical surface 43a, the primary optical surface 42, and the second secondary optical surface 43b in turn, and is finally reflected to the exit direction perpendicular to the primary optical surface 42 and aligned with the imaging chip assembly 8, and then vertically emitted from the primary optical surface 42, and finally reaches the image sensor chip 81 after passing through the filter 82. The image sensor chip 81 converts the optical signal into an electronic image signal, which can be transmitted to an external data processing device, such as a data processing device of an intelligent terminal equipped with the camera device, through the TSA circuit board 92, the suspension wire and the TSA outer frame 91 of the TSA9 for subsequent processing. In this way, the shooting function of the camera device is realized.
[0045] In the process of shooting with the camera device, if focusing is required, the AF device 2 can be controlled by, for example, existing technical means to drive at least one movable lens unit of the lens assembly 1, such as the second lens unit 12, along its optical axis direction (for example, Figure 7 and Fig. 9 The AF drive method can be completely referred to in the prior art and need not be described in detail here.
[0046] During the process of shooting with the camera device, if an optical image stabilization operation is required, the coil 62 can be energized by, for example, existing technical means. After the coil 62 is energized, electromagnetic induction occurs in the magnetic field of the corresponding magnet 52, causing the coil 62 to be subjected to electromagnetic thrust, which drives the coil assembly 6 and the imaging chip assembly 8 fixed thereon to move in a direction perpendicular to the optical axis of the lens assembly 1 (for example, Figure 7 and Fig. 9 The optical signal emitted from the main optical surface 42 can be adjusted to reach the specific position on the image sensor chip 81 to compensate for the offset of the lens assembly 1 or the optical path adjustment member 4 in the X-axis direction and / or the Y-axis direction relative to the imaging chip assembly 8 caused by the shaking, so that the imaging chip assembly 8 is kept in the position most suitable for receiving the optical signal, thus realizing the optical anti-shake operation. During this operation, the ball 7 can provide isolation and support between the coil 62 and the magnet 52, and at the same time facilitate the movement of the coil 62 relative to the magnet 52 by its own rolling.
[0047] In the above-mentioned optical image stabilization operation, by adjusting the direction and magnitude of the voltage applied to the coil 62, the direction and magnitude of the current passing through the coil 62 can be adjusted, and then the direction and magnitude of the electromagnetic thrust exerted on the coil 62 can be adjusted to achieve the purpose of precise image stabilization. The specific adjustment method of the relevant voltage and current can be completely referred to the prior art, and there is no need to elaborate here. Furthermore, in the above-mentioned optical image stabilization operation, when the imaging chip assembly 8 moves, pressure or tension will be applied to the suspension wire in the cantilever unit 93 of the TSA9. At this time, the suspension wire can be elastically deformed based on its own elasticity, allowing the lens assembly 6 and the imaging chip assembly 8 to move relative to the TSA outer frame 91; and when the work is completed, the suspension wire will recover from the elastic deformation state, driving the lens assembly 6 and the imaging chip assembly 8 to reset.
[0048] Based on the above specific structure, compared with the prior art, the camera device provided in this embodiment can achieve many beneficial technical effects, such as: (1) The lens assembly 1 and the imaging chip assembly 8 of the camera device are not coaxially arranged, but the lens assembly 1 and the imaging chip assembly 8 are arranged in parallel, so that the imaging chip assembly 8 is located on one side of the optical axis direction of the lens assembly 1, and the optical path adjustment member 4 receives the optical signal collected by the lens assembly 1 and adjusts its optical path to transmit the optical signal to the imaging chip assembly 8 for imaging. Therefore, the lens assembly 1 and the imaging chip assembly 8 do not need to be arranged on the same straight line, that is, on the common optical axis, but can be arranged roughly in the same plane. In this way, the overall length of the camera device in the optical axis direction can be significantly reduced, the assembly difficulty of the camera device can be significantly reduced, and it is helpful to further miniaturize the smart terminal. (2) The camera device divides the lens assembly 1 into a fixed lens unit and a movable lens unit. When the AF operation is required, only the movable lens unit is driven to move, and the entire lens assembly 1 does not need to be driven to move, thereby reducing the load of the AF device 2, which is beneficial to energy saving, extending the service life and improving the sensitivity of AF operation. In addition, the at least two lens units cooperate with the optical path adjustment member to increase the optical path through multiple reflections, which helps to achieve large aperture and telephoto macro shooting effects. (3) The imaging chip assembly 8 is sleeved inside the coil bracket 61, and the coil bracket 61 is sleeved inside the magnet bracket 51. In this way, the imaging chip assembly 8 and the optical image stabilization mechanism are integrated together to form a chip sinking structure, which greatly reduces the overall thickness of the imaging chip assembly and the optical image stabilization mechanism in the above-mentioned Z-axis direction, helps to simplify the structure and save costs. (4) The TSA circuit board 92 is used as the circuit board of the imaging chip assembly 8. There is no need to set up a circuit board for the imaging chip assembly 8. The overall thickness of the imaging chip assembly 8 and TSA9 can be further reduced, which helps to further simplify the structure and save costs.
[0049] It can be understood that in other embodiments, the specific driving method for driving the imaging chip assembly 8 to move to achieve optical image stabilization is not limited to the electromagnetic induction drive described in the above embodiment, and shape memory alloy (SMA) drive, piezoelectric drive, etc. can also be used to provide driving force to the imaging chip assembly 8. The specific structure and working principle of these driving methods can refer to the prior art. The optical path adjustment member 4 is also not limited to the prism described in the above embodiment, and other optical structures such as reflective mirror components and total reflection optical fibers can also be used, as long as the same optical path adjustment function can be achieved.
[0050] Another aspect of the present application provides an intelligent terminal, which may be, for example, a smart phone, a tablet computer, a personal computer, a wearable device, etc., and the intelligent terminal includes a camera device as described in the above embodiment. It can be understood that the intelligent terminal can also obtain the beneficial technical effects of the above aspects compared with the prior art because it includes the camera device as described in the above embodiment.
[0051] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.
Claims
1. A camera device, characterized in that: The camera device includes a lens assembly, a main shell, an imaging chip assembly, an optical path adjustment component, a magnet assembly and a coil assembly; the lens assembly and the magnet assembly are both assembled on the main shell, the coil assembly is movably mounted in the magnet assembly, the imaging chip assembly and the coil assembly are fixed to each other, and the imaging chip assembly is located on one side of the optical axis direction of the lens assembly; the optical path adjustment component is mounted in the main shell, and is used to receive the optical signal collected by the lens assembly and transmit the optical signal to the imaging chip assembly for imaging; the magnet assembly and the coil assembly are used to generate electromagnetic thrust to drive the coil assembly to drive the imaging chip assembly to move; the main shell is also formed with an avoidance portion, and the magnet assembly is partially embedded in the avoidance portion.
2. The imaging device according to claim 1, wherein: The camera device also includes an autofocus device, the lens assembly is installed in the autofocus device, and the autofocus device is assembled on the main housing; the lens assembly includes at least one fixed lens unit and at least one movable lens unit, and the autofocus device is used to drive the movable lens unit to move for focusing.
3. The imaging device according to claim 1, wherein: The magnet assembly includes a magnet bracket and a magnet fixedly mounted on the magnet bracket, and the coil assembly includes a coil bracket movable relative to the magnet bracket and a coil fixedly mounted on the coil bracket; the imaging chip assembly is fixedly mounted in the coil bracket, and the coil and the magnet are used to generate electromagnetic thrust, which drives the imaging chip assembly to move through the coil bracket.
4. The imaging device according to claim 3, wherein: The imaging chip assembly is sleeved in the coil support, and the coil support is sleeved in the magnet support.
5. The imaging device according to claim 4, wherein: The imaging device further includes a ball bearing which is rollably mounted between the magnet assembly and the coil assembly.
6. The imaging device according to claim 5, wherein: The magnet bracket is provided with a first ball hole, the coil bracket is provided with a second ball hole corresponding to the first ball hole, and the balls are rollably embedded in the first ball hole and the second ball hole.
7. The imaging device according to claim 3, wherein: The avoidance portion is a notch formed on the main shell, and the magnet bracket is partially embedded in the avoidance portion.
8. The imaging device according to claim 1, wherein: The camera device also includes a TSA, which includes a TSA outer frame, a TSA circuit board and a cantilever unit. The cantilever unit includes a plurality of cantilevers made of elastic and conductive material. The TSA circuit board is arranged inside the TSA outer frame, and the plurality of cantilevers are connected between the TSA outer frame and the TSA circuit board; the imaging chip assembly and the TSA circuit board are fixed to each other and electrically connected.
9. The imaging device according to claim 8, wherein: The camera device also includes a top cover, which includes a top plate and a clip-on plate arranged at the edge of the top plate; the coil assembly, the imaging chip assembly and the TSA are all clamped between the magnet assembly and the top plate, and the clip-on plate is fixed to the magnet bracket.
10. An intelligent terminal, characterized in that: The invention comprises an imaging device as claimed in any one of claims 1 to 9.