A camera device and a smart terminal

Abstract

The application provides a camera device, comprising a lens assembly, an automatic focusing device, an imaging chip assembly, a light path adjusting piece, a magnet assembly and a coil; the imaging chip assembly is arranged on one side of the lens assembly in the direction of the optical axis; the light path adjusting piece is used for receiving an optical signal collected by the lens assembly and adjusting the light path of the optical signal, so as to transmit the optical signal to the imaging chip assembly for imaging; the automatic focusing device is used for driving the lens assembly to focus; the coil and the imaging chip assembly are fixed with each other; the magnet assembly and the coil are used for generating electromagnetic thrust through electromagnetic induction to drive the coil and the imaging chip assembly to move. The application also provides a smart terminal comprising the camera device. The camera device and the smart terminal provided by the application are helpful for further miniaturization design of the smart terminal and reduction of assembly difficulty.

Description

Technical Field

[0001] This 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 Technology

[0002] Various commonly used smart terminals, such as smartphones and tablets, are usually equipped with built-in camera devices to enable shooting anytime, anywhere.

[0003] In existing technologies, the built-in camera devices of smart terminals typically include a lens assembly, focusing mechanism, image stabilization mechanism, and imaging chip assembly, similar to traditional standalone camera devices. Due to the size limitations of smart terminals, these components of their built-in camera devices must be further miniaturized compared to similar components in standalone camera devices. Therefore, existing built-in camera devices in smart terminals are usually designed to have a structure similar to standalone camera devices, but scaled down proportionally.

[0004] In recent years, as consumers have increasingly demanded lighter, thinner, shorter, and smaller smart devices, the requirements for further miniaturization have become more stringent. However, the built-in camera devices of smart devices cannot be scaled down indefinitely, otherwise their necessary optical and mechanical performance would be affected. This is especially true for telephoto cameras used for telephoto or super macro photography, which require a long optical path to achieve clear imaging. Current technology necessitates a sufficient overall length for telephoto cameras to achieve this long optical path, making it particularly difficult to miniaturize telephoto cameras and integrate them into smart devices.

[0005] Therefore, it is necessary to provide a camera device with a more novel structure and a smart terminal with the camera device built in, in order to solve the above-mentioned defects in the prior art. Summary of the Invention

[0006] The purpose of this 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 becoming increasingly difficult to miniaturize the built-in camera device, especially the telephoto camera device, in existing smart terminals.

[0007] To address the aforementioned problems, one embodiment of this application provides a camera device, comprising a lens assembly, an autofocus device, an imaging chip assembly, an optical path adjustment component, a magnet assembly, and a coil; the imaging chip assembly is disposed on one side of the optical axis of the lens assembly; the optical path adjustment component is used to receive optical signals collected by the lens assembly and adjust the optical path of the optical signals to transmit the optical signals to the imaging chip assembly for imaging; the autofocus device is used to drive the lens assembly to focus; the coil is fixed to the imaging chip assembly, and the magnet assembly and the coil are used to generate electromagnetic thrust through electromagnetic induction to drive the coil and the imaging chip assembly to move.

[0008] In some embodiments, the imaging device further includes a guide assembly movably mounted in the magnet assembly relative to the magnet assembly, wherein the coil and the imaging chip assembly are fixedly mounted on the guide assembly.

[0009] In some embodiments, the guiding assembly includes a first guide and a second guide, the first guide being movably mounted in the magnet assembly along a first direction, and the second guide being movably mounted on the first guide along a second direction, the first direction being perpendicular to the second direction; the coil and the imaging chip assembly are both fixedly mounted on the second guide.

[0010] In some embodiments, the magnet assembly includes a magnet support and a magnet. The magnet support includes a support base plate, the support base plate includes a main body and a first extension plate and a second extension plate extending from the main body toward the same side. The magnet is mounted on the main body and the first extension plate. The first guide includes a first guide arm and a second guide arm connected to each other. The first guide arm overlaps between the first extension plate and the second extension plate, and the second guide arm is arranged along the second extension plate.

[0011] In some embodiments, the guide assembly further includes a first ball set comprising a plurality of first balls, the first balls being rotatably disposed between the magnet assembly and the first guide member, and between the magnet assembly and the second guide member, along the first direction.

[0012] In some embodiments, the guide assembly further includes a second ball set, the first ball set including a plurality of second balls, the second balls being rotatably disposed between the first guide and the second guide in the second direction.

[0013] In some embodiments, the camera device further includes a main housing, in which the optical path adjustment component is installed; the main housing has a first connecting frame and a second connecting frame, the first connecting frame being used to assemble the autofocus device, and the second connecting frame being used to assemble the magnet assembly.

[0014] In some embodiments, the magnet support further includes a frame structure that is vertically disposed relative to the support base plate, the frame structure having a notch for engaging with the second connecting frame.

[0015] In some embodiments, the imaging device further includes a connection assembly comprising a rigid mounting portion and at least partially flexible connecting portions, wherein the imaging chip assembly is mounted in the mounting portion and electrically connected to the mounting portion, and the second guide is fixed to the mounting portion; the connecting portion includes a connecting portion body and an extension portion, the connecting portion body being connected to the mounting portion, and the extension portion extending from the connecting portion body and used to establish an electrical connection with the outside world; the coil is electrically connected to the mounting portion via the second guide.

[0016] Another embodiment of this application provides a smart terminal, the smart terminal including any of the camera devices described in the foregoing embodiments; wherein the lens assembly includes a fixed lens unit and a movable lens unit, and the autofocus device is used to drive the movable lens unit to move for focusing.

[0017] Compared with the prior art, the camera device and the smart terminal with the camera device provided by the above-described preferred embodiments of this application have superior technical effects. For example: (1) The lens assembly and the imaging chip assembly of the camera device are not coaxially arranged, but are arranged side by side, with the imaging chip assembly located on one side of the optical axis of the lens assembly. The optical path adjustment component 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 and the imaging chip assembly do not need to be arranged on the same straight line, i.e., 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 assembly difficulty of the camera device, and help to further miniaturize the smart terminal. (2) The camera device divides the lens assembly into a fixed lens unit and a movable lens unit. When AF operation is required, only the movable lens unit is driven to move, instead of driving the entire lens assembly to move, thereby reducing the load on the AF device, which is beneficial for energy saving, extending service life and improving AF operation sensitivity. Furthermore, the at least two lens units work in conjunction with the optical path adjustment components to increase the optical path through multiple reflections, which helps to achieve large aperture and telephoto macro shooting effects. (3) The magnet support and guide assembly are constructed into a double-layer ball bearing guide structure. The two guide structures are responsible for moving the imaging chip assembly in two directions, which can make the function of the guide structure in the two directions more specialized and distribute the workload evenly, which helps to reduce design costs and increase service life. (4) Corresponding avoidance structure designs are adopted in the main housing, magnet assembly and guide assembly, which can further save assembly space and improve electromagnetic performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded view of a camera device provided in a preferred embodiment of this application.

[0020] Figure 2 yes Figure 1 The diagram shows the assembled structure of the camera equipment.

[0021] Figure 3 yes Figure 1 A schematic diagram of the magnet assembly in the camera device shown.

[0022] Figure 4yes Figure 1 An exploded view of the double-layer guide structure consisting of a magnet bracket and a guide assembly in the camera device shown.

[0023] Figure 5 yes Figure 4 The diagram shown is an exploded view of the double-layer guide structure from another perspective.

[0024] Figure 6 yes Figure 1 The diagram shows the structure of the second guide and coil connected to the connecting assembly in the camera device.

[0025] Figure 7 yes Figure 1 The diagram shows the structure of the camera device after the connection components are connected to the imaging chip components.

[0026] Figure 8 yes Figure 1 The diagram shown illustrates the working principle of the camera equipment. Detailed Implementation

[0027] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this application. Based on the description of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0028] The main purpose of this 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 becoming increasingly difficult to miniaturize the built-in camera device, especially the telephoto camera device, in existing smart terminals.

[0029] Please refer to the following first. Figure 1 and Figure 2 One preferred embodiment of this application provides a camera device that can be used in smart terminals such as smartphones and tablets as a built-in camera device of the smart terminal.

[0030] The camera device includes a lens assembly 1, an automatic focus (AF) device 2, an optical path adjustment component 3, a main housing 4, a magnet assembly 5, a guide assembly 6, a coil 7, a connection assembly 8, an imaging chip assembly 9, and a top cover 10.

[0031] The lens assembly 1 includes a first lens unit 11 and a second lens unit 12. Both the first lens unit 11 and the second lens unit 12 contain at least one optical lens, and the optical axes of all the optical lenses are aligned on the same straight line, thus giving the lens assembly 1 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 be existing lens units, as long as their shape and size can be assembled into a smart terminal. In this embodiment, the first lens unit 11 is preferably configured as a fixed lens unit, housing a relatively large and heavy optical lens; the second lens unit 12 is configured as a movable lens unit, housing a relatively small and heavy optical lens. In other embodiments, the lens assembly 1 may also include lens units of different numbers and specifications than in this embodiment, as long as it includes at least one fixed lens unit and at least one movable lens unit.

[0032] The AF device 2 can be, for example, a voice coil motor, and the lens assembly 1 is mounted 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 for focusing. For example, in this embodiment, the first lens unit 11 is preferably fixedly mounted in the AF device 2, while the second lens unit 12 is movably mounted in the AF device 2, and the AF device 2 is configured to drive the second lens unit 12 to move along its own optical axis for focusing. The specific structure of the AF device 2 itself, 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 this embodiment, the second lens unit 12 can be driven to focus by any one of electromagnetic, shape memory alloy, piezoelectric effect, or a combination of two or more of these methods.

[0033] In this embodiment, the optical path adjustment component 3 is a total internal reflection prism, preferably having two end faces 30, a bottom face 31, a main optical surface 32, a first secondary optical surface 33, and a second secondary optical surface 33b, all of the same shape and size. The bottom face 31 is parallel to the main optical surface 32, while the first secondary optical surface 33a and the second secondary optical surface 33b are obliquely intersecting the bottom face 31 and the main optical surface 32. The shape and size of the main housing 4 correspond to the outer contour of the optical path adjustment component 4. The optical path adjustment component 3 is embedded inside the main housing 4 and can be fixed in the main housing 4 using existing techniques such as adhesive bonding or snap-fitting, with its main optical surface 32 facing outwards from the main housing 4. The AF device 2 is interconnected with the main housing 4; please refer to the documentation for further details. Figure 8The optical axis of the lens assembly 1 is arranged perpendicular to the main optical surface 32 of the optical path adjustment component 3 and aligned with the main optical surface 32 and the first secondary optical surface 33a. Further, a first connecting frame 41 and a second connecting frame 42 are formed side by side on the side of the main housing 4 that exposes the main optical surface 32. The first connecting frame 41 is used to assemble the AF device 2, and the second connecting frame 42 is used to assemble the magnet assembly 5. The frame edge thickness of the second connecting frame 42 is less than that of the first connecting frame 41, so that a mounting flange 43 is formed on the outer side of the second connecting frame 42 of the main housing 4.

[0034] Please refer to the following: Figure 1 and Figure 3The magnet assembly 5 includes a magnet bracket 51 for interconnection with the main housing 4 and arranged parallel to the AF device 2, and a magnet 52 installed in the magnet bracket 51. The magnet bracket 51 includes a bracket base plate 511 and a frame structure erected relative to the bracket base plate 511. The frame structure includes a first frame 512 and a second frame 513. The bracket base plate 511 includes a main body 511a, a first extension plate 511b, and a second extension plate 511c. The main body 511a, the first extension plate 511b, and the second extension plate 511c are all approximately rectangular flat plates and arranged in the same plane. The first extension plate 511b and the second extension plate 511c are respectively connected to the two ends of the same edge of the main body 511a and extend outwards to the same side of the main body 511a. The length directions of the first extension plate 511b and the second extension plate 511c are parallel to each other and perpendicular to the length direction of the main body 511a, so that the overall shape of the magnet bracket 51 is close to a U-shaped flat plate. A recessed magnet receiving groove 53 is formed on the middle surface of the main body 511a and the middle surface of the first extension plate 511b. A raised ball bearing platform 54 is formed on the surface of the main body 511a adjacent to the end of the first extension plate 511b. A recessed first ball groove 540 is formed on the surface of the ball bearing platform 54. The first ball groove 540 is circular, allowing the ball to roll in any direction within the same plane. A recessed second ball groove 55 is formed on the surface of the main body 511a adjacent to the end of the second extension plate 511c, the surface of the first extension plate 511b away from the end of the main body 511a, and the surface of the second extension plate 511c away from the end of the main body 511a. The second ball groove 55 is strip-shaped, allowing the ball to roll in a single direction defined by its orientation. All second ball grooves 55 have the same orientation. The aforementioned magnet receiving groove 53, ball bearing platform 54, first ball groove 540, and second ball groove 55 are all formed on the same side surface of the bracket base plate 511. The side surface of the bracket base plate 511 facing away from the magnet receiving groove 53, ball bearing platform 54, first ball groove 540, and second ball groove 55 is used to fix it to the mounting flange 43 of the main housing 4, so that the second connecting frame 42 is surrounded by the bracket base plate 511. This allows the magnet bracket 51 and the main housing 4 to be nested to a certain extent, saving assembly space and reducing the overall thickness. Preferably, the bracket base plate 511 can also be fixed to the second connecting frame 42 to further improve the assembly firmness.

[0035] The first frame 512 and the second frame 513 are both roughly U-shaped frames, vertically arranged relative to the support base plate 511, and both are connected to one side surface of the support base plate 511 where the magnet receiving groove 53, the ball bearing platform 54, the first ball groove 540, and the second ball groove 55 are formed. Specifically, the first frame 512 is connected to the main body 511a, the first extension plate 511b, and the second extension plate 511c, and extends along the length direction of the main body 511a, a portion of the first extension plate 511b, and a portion of the second extension plate 511c; the second frame 513 is connected between the end of the first extension plate 511b away from the main body 511a and the end of the second extension plate 511c away from the main body 511a, and extends along a direction parallel to the length direction of the main body 511a, a portion of the first extension plate 511b, and a portion of the second extension plate 511c. On the side where the first extension plate 511b is located, one end of the first frame 512 is spaced apart from one end of the second frame 513, thereby forming a first notch 51a between the end of the first frame 512 and the end of the second frame 513; on the side where the second extension plate 511c is located, the other end of the first frame 512 is spaced apart from the other end of the second frame 513, thereby forming a second notch 51b between the end of the first frame 512 and the end of the second frame 513. A third notch 51c is also formed in the middle section of the second frame 513. The first notch 51a, the second notch 51b, and the third notch 51c help to provide more assembly space when assembling the magnet holder 51 with other components, facilitating the reduction of the overall structural size and also helping to reduce weight.

[0036] The magnet 52 is preferably a bar permanent magnet, the shape and size of which correspond to the magnet receiving groove 53. In this embodiment, the number of magnets 52 is preferably two, which are respectively installed in the two magnet receiving grooves 53, and the length directions of the two magnets 52 are preferably arranged perpendicular to each other.

[0037] Please refer to the following: Figure 1 , Figure 4 and Figure 5 The guide assembly 6 includes a first ball set 61, a first guide member 62, a second ball set 63, and a second guide member 64.

[0038] The first ball group 61 includes a plurality of first balls 610, and in this embodiment, the number of first balls 610 is preferably four.

[0039] The first guide member 62 includes a first guide arm 621 and a second guide arm 622, both of which are straight strips and connected to each other perpendicularly at their ends, giving the first guide member 62 an overall L-shaped shape. A recessed third ball groove 623 is formed on one side surface of the first guide member 62, and a recessed fourth ball groove 624 is formed on the opposite side surface. In this embodiment, there are three third ball grooves 623 and three fourth ball grooves 624. The third ball grooves 623 are formed on one side surface of the first guide member 62 and are respectively located at the ends of the first guide arm 621, the second guide arm 622, and the connection point between the first and second guide arms 621 and 622. The fourth ball grooves 624 are formed on the opposite side surface of the first guide member 62 and are respectively located at the ends of the first guide arm 621, the second guide arm 622, and the connection point between the first and second guide arms 621 and 622. The third ball groove 623 and the fourth ball groove 624 are both strip-shaped, allowing the balls to roll in a single direction defined by their orientation; all the third ball grooves 623 have the same orientation and are configured to have the same orientation as the aforementioned second ball groove 55; all the fourth ball grooves 624 have the same orientation and are preferably configured to be perpendicular to the orientation of the third ball grooves 623.

[0040] The first guide member 62 is installed inside the magnet bracket 51, wherein the first guide arm 621 is installed inside the second frame 513, overlapping between the end of the first extension plate 511b and the end of the second extension plate 511c, and is arranged parallel to the main body 511a; the second guide arm 622 is installed parallel to the second extension plate 511c. This allows both the first guide member 62 and the magnet 52 to be located inside the magnet bracket 51, forming a mutually abutting structure to avoid obstructing each other during operation. Three third ball grooves 623 are aligned with the aforementioned three second ball grooves 55, and three of the four first balls 610 are rotatably installed in the aligned second ball grooves 55 and third ball grooves 623, allowing the first guide member 62 to move relative to the magnet bracket 51 in the same direction as the second ball grooves 55 and third ball grooves 623. Figure 4 and Figure 5 The X-axis direction is shown.

[0041] The second ball assembly 63 includes a plurality of second balls 630, and in this embodiment, the number of second balls 630 is preferably three.

[0042] The second guide member 64 is a rectangular frame, with three recessed fifth ball grooves 641 formed at three corners on one side surface, and a recessed sixth ball groove 642 formed at the fourth corner. The fifth ball grooves 641 are strip-shaped, allowing the ball to roll in a single direction defined by their orientation. The sixth ball grooves 642 are circular, allowing the ball to roll in any direction within the same plane. The three fifth ball grooves 641 have the same orientation, and are configured to be consistent with the orientation of the aforementioned fourth ball grooves 624. The second guide member 64 is also installed inside the magnet support 51, with the three fifth ball grooves 641 aligned with the three fourth ball grooves 624. The three second balls 630 are rotatably mounted in the aligned fourth ball grooves 624 and fifth ball grooves 641, allowing the second guide member 64 to move relative to the first guide member 62 in the same direction as the orientation of the fourth ball grooves 624 and fifth ball grooves 641. Figure 4 and Figure 5 The Y-axis direction is shown. In addition, a plurality of coil positioning posts 640 are provided on the side surface of the second guide member 64 where the fifth ball groove 641 and the sixth ball groove 642 are formed. The coil positioning posts 640 are arranged on the two frame edges of the second guide member 64 adjacent to the corner where the sixth ball groove 642 is formed, and are preferably made of conductive material.

[0043] The coil 7 is mounted on the guide assembly 6. In this embodiment, the coil 7 is preferably fixedly mounted on the second guide member 64. The shape, size, and number of the coil 7 correspond to the magnet 52. Specifically, in this embodiment, the coil 7 is a racetrack-shaped coil, the size of which corresponds to the magnet 52, and there are two of them; please refer to the following: Figure 6 Two coils 7 are respectively fixedly mounted on the two frame edges of the second guide member 64 adjacent to the corner where the sixth ball groove 642 is formed, and can be fitted onto the outside of the coil positioning post 640 for more stable positioning. The coil positioning post 640 also provides an electrical connection point for the coils 7. Thus, when the second guide member 64 is installed inside the magnet bracket 51, the two coils 7 are arranged to align with the two magnets 52 respectively, and the length direction of each coil 7 is parallel to the length direction of the corresponding magnet 52. The specific structure of the coils 7 can take various forms, such as a wire-wound coil or a flexible printed coil (FP-COIL).

[0044] Please refer to the following: Figure 7The connecting component 8 includes a mounting portion 81 and a connecting portion 82. The mounting portion 81 is preferably made of a rigid circuit board, and its shape is preferably a generally U-shaped flat frame. The surface of the second guide member 64 opposite to the surface where the fifth ball groove 641 and the sixth ball groove 642 are formed is attached to and fixed to the mounting portion 81. Simultaneously, the second guide member 64, such as the coil positioning post 640 therein, is electrically connected to the mounting portion 81, allowing the coil 7 to establish an electrical connection with the mounting portion 81 through the second guide member 64. The connecting portion 82 includes a connecting body 821, an extension 822, two end connecting feet 823, and a middle connecting foot 824. The connecting body 821 is preferably made of a flexible circuit board or at least partially flexible circuit board, and its shape is a flat, elongated strip, vertically positioned relative to the plane of the mounting portion 81, and bent along the outer edge of the mounting portion 81 into a shape corresponding to the mounting portion 81. The extension 822 is preferably made of a flexible circuit board and is flat and elongated in shape. It is preferably arranged parallel to the plane of the mounting part 81. The end connecting pins 823 and the middle connecting pins 824 are both connecting pieces bent into right angles. They are preferably made of rigid conductive materials, such as rigid circuit boards or metal sheets. The two end connecting pins 823 connect the two ends of the connecting part body 821 to the mounting part 81, and the middle connecting pin 824 connects the middle part of the connecting part body 821 to one end of the extension 822. The other end of the extension 822 is led out for establishing an electrical connection with the outside.

[0045] The imaging chip assembly 9 may include a filter assembly, an image sensor chip, and a chip circuit board (not labeled in the figure) stacked sequentially. The filter assembly, image sensor chip, and chip circuit board can all be based on existing technology and will not be described in detail here. The overall shape and size of the imaging chip assembly 9 correspond to the internal shape and size of the mounting portion 81 of the connecting assembly 8. It is installed inside the opening of the mounting portion 81, and is substantially arranged in the same plane as the mounting portion 81. Furthermore, the chip circuit board of the imaging chip assembly 9 is electrically connected to the mounting portion 81.

[0046] The top cover 10 includes a top plate 101 and a snap-fit ​​plate 102 disposed on the edge of the top plate 101. The top plate 101 is a rectangular flat plate, and the snap-fit ​​plate 102 is a long strip flat plate, preferably disposed on at least two opposite edges of the top plate 101 and perpendicular to the top plate 101. It can be understood that the top plate 101 and the snap-fit ​​plate 102 can be integrally formed. The shape and size of the top cover 10 correspond to the external shape and size of the magnet bracket 51 and the connecting assembly 8, cover the outside of the magnet bracket 51 and the connecting assembly 8, and are fixed to the main housing 4 by its snap-fit ​​plate 102.

[0047] Please refer to the following: Figure 8After the camera device is assembled, as mentioned above, on the one hand, the optical axis of the lens assembly 1 is arranged perpendicular to the main optical surface 32 of the optical path adjustment component 3, and aligned with the main optical surface 32 and the first secondary optical surface 33a; on the other hand, the guide assembly 6, coil 7, connecting assembly 8, and imaging chip assembly 9 are all installed in the magnet bracket 51 according to the above-mentioned specific arrangement, and the magnet bracket 51 is fixed on the main housing 4 and arranged side by side with the AF assembly 2, so that the imaging chip assembly 8 is aligned with the main optical surface 32 and the second secondary optical surface 33b of the optical path adjustment component 3. Preferably, the side with the opening of the bracket base plate 511 of the magnet bracket 51 (i.e., the side where the first guide arm 621 is installed) should be arranged in the position closest to the AF device 2, so that the coil 7 can be set as far away from the AF device 2 as possible, preventing the AF device 2 from obstructing the movement of other components during the optical image stabilization operation of the camera device; and at the same time, a part of the second connecting frame 42 can be embedded in the third notch 51c, further saving assembly space and compressing the overall size. The first notch 51a and the second notch 51b can be used to provide more assembly space for the connecting component 8 and the imaging chip component 9, further reducing the thickness of the overall structure.

[0048] like Figure 8 As shown, when using the camera device, the lens assembly 1 is positioned directly facing the target (not shown) to collect the optical signal generated by the target. The collected optical signal passes through the lens assembly 1 along the optical axis of the lens assembly 1 or in a direction parallel to the optical axis of the lens assembly 1 (that is, perpendicular to the main optical surface 32 of the optical path adjustment member 3), and then is perpendicularly incident on the main optical surface 32 of the optical path adjustment member 3. According to the working principle of a total internal reflection prism in the prior art, the optical signal will then enter the interior of the optical path adjustment member 3 from the main optical surface 32, and then... Figure 8 The optical signal transmission direction shown in the diagram undergoes total internal reflection sequentially inside the first secondary optical surface 33a, the main optical surface 32, and the second secondary optical surface 33b. The reflected signal is then directed towards an exit direction perpendicular to the main optical surface 32 and aligned with the imaging chip assembly 9. It exits perpendicularly from the main optical surface 32, passes through the filter 92, and finally reaches the imaging chip assembly 9. The imaging chip assembly 9 converts the optical signal into an electronic image signal. This electronic image signal can then be transmitted via the mounting part 91 and the connecting body 821, and through the extension part 822, to an external data processing device, such as the data processing device of a smart terminal equipped with the camera device, for further processing. This achieves the imaging function of the camera device.

[0049] During the shooting process using the aforementioned camera equipment, if focusing is required, at least one movable lens unit in the lens assembly 1 can be controlled by, for example, existing technical means, to drive the AF device 2 along its optical axis (e.g., the second lens unit 12). Figure 4 and Figure 5 The movable lens unit can be moved along the Z-axis (as shown), thus adjusting the distance the optical signal needs to travel from the lens assembly 1 to the imaging chip assembly 9, thereby achieving focusing. The specific driving method of the movable lens unit can be completely referred to the existing technology, and will not be described in detail here.

[0050] During the shooting process using the aforementioned camera equipment, if optical image stabilization is required, the coil 7 can be energized. For example, external power can be supplied to the coil 7 through an electrical path formed by the extension 822, the connecting body 821, the end connecting foot 823, the second guide 64, and the coil positioning post 640. After the coil 7 is energized, electromagnetic induction occurs in the magnetic field of the corresponding magnet 52, causing the coil 7 to experience electromagnetic thrust. This electromagnetic thrust drives the coil 7 to move, thereby causing the guide assembly 6, the connecting assembly 8, and the imaging chip assembly 9 to move relative to the magnet support 51. In this way, the specific position of the optical signal emitted from the main optical surface 32 on the imaging chip assembly 9 can be adjusted to compensate for the offset of the lens assembly 1 or the optical path adjustment component 4 relative to the imaging chip assembly 9 in the direction perpendicular to the optical axis of the lens assembly 1 (e.g., the aforementioned X-axis direction and / or Y-axis direction) caused by shaking. This keeps the imaging chip assembly 9 in the position most suitable for receiving optical signals, thus achieving optical image stabilization. During this operation, the first ball bearing 610 and the second ball bearing 630 provide isolation and support between the magnet support 51, the first guide 62, and the second guide 64, while also facilitating relative movement between them through their own rolling motion. The connecting body 821, due to its flexibility, also avoids hindering the movement of related components during the aforementioned optical image stabilization operation. By adjusting the direction and magnitude of the voltage applied to the coil 7, the direction and magnitude of the current flowing through the coil 7 can be adjusted, thereby adjusting the direction and magnitude of the electromagnetic thrust experienced by the coil 7 to achieve precise image stabilization. The specific methods for adjusting the relevant voltage and current can be fully referenced in existing technology and will not be elaborated here.

[0051] Specifically, in this embodiment, the guide assembly 6 and the magnet support 51 together form a double-layer guide structure. According to the aforementioned specific structural design, the three first balls 610 disposed between the magnet support 51 and the first guide member 62 allow the first guide member 62 to move relative to the magnet support 51 along a first direction (e.g., the aforementioned X-axis direction) based on their respective ball groove orientation. The second balls 630 disposed between the first guide member 62 and the second guide member 64 allow the second guide member 64 to move relative to the first guide member 62 along a second direction perpendicular to the first direction (e.g., the aforementioned Y-axis direction) based on their respective ball groove orientation. The fourth first ball 610 disposed between the ball bearing platform 54 on the magnet support 51 and the second guide member 64 simultaneously allows the second guide member 64 to move relative to the magnet support 51 along both the first and second directions, because its corresponding ball groove shape is circular. Therefore, based on the specific configuration of this double-layer guide structure, in the aforementioned optical image stabilization operation, when it is necessary to control the movement of the imaging chip assembly 8 in the X-axis direction, the electromagnetic thrust drive coil 7 drives the second guide member 64 to move relative to the magnet bracket 51 in the X-axis direction. At this time, the second ball 630 is restricted by the direction of its corresponding ball groove and will not roll. Instead, it drives the first guide member 62 to move in the X-axis direction. In this way, three first balls 610 roll between the magnet bracket 51 and the first guide member 62, and one first ball 610 rolls between the magnet bracket 51 and the second guide member 64. This allows the first guide member 62, the second guide member 64, and the imaging chip assembly 9 to move relative to the magnet support 51 in the X-axis direction. When it is necessary to control the movement of the imaging chip assembly 8 in the Y-axis direction, the electromagnetic thrust drive coil 7 drives the second guide member 64 to move relative to the magnet support 51 in the Y-axis direction. At this time, the second ball 630 rolls between the first guide member 62 and the second guide member 64, and one first ball 610 rolls between the magnet support 51 and the second guide member 64, so that the second guide member 64 and the imaging chip assembly 9 move relative to the magnet support 51 in the Y-axis direction. In this way, with two layers of guide structures responsible for moving the imaging chip assembly 9 in two directions respectively, the functions of the guide structures in the two directions can be more specialized, and the workload can be evenly distributed, which helps to reduce design costs and increase service life.

[0052] Based on the specific structure described above, the camera device provided in this embodiment can achieve many beneficial technical effects compared with the prior art. For example: (1) The lens assembly 1 and the imaging chip assembly 9 of the camera device are not coaxially arranged, but are arranged side by side, with the imaging chip assembly 9 located on one side of the optical axis of the lens assembly 1. The optical path adjustment component 3 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 9 for imaging. Therefore, the lens assembly 1 and the imaging chip assembly 9 do not need to be arranged on the same straight line, i.e., 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 assembly difficulty of the camera device, and help 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 AF operation is required, only the movable lens unit is driven to move, instead of driving the entire lens assembly 1 to move, thereby reducing the load on the AF device 2, which is beneficial for energy saving, extending service life and improving AF operation sensitivity. Furthermore, the at least two lens units cooperate with the optical path adjustment components to increase the optical path through multiple reflections, which helps to achieve large aperture and telephoto macro shooting effects. (3) The magnet bracket 51 and the guide component 6 are constructed into a double-layer ball bearing guide structure. The two guide structures are responsible for moving the imaging chip component 9 in two directions, which can make the function of the guide structure in the two directions more specialized and distribute the workload evenly, which helps to reduce design costs and increase service life. (4) Corresponding avoidance structure designs are adopted in the main housing 4, magnet component 5 and guide component 6, which can further save assembly space and improve electromagnetic performance.

[0053] It is understood that in other embodiments, the optical path adjustment component 3 is not limited to the prism described in the above embodiments, and may also employ other optical structures such as a reflecting mirror assembly or a total internal reflection fiber, as long as the same optical path adjustment function can be achieved. The number and specific arrangement of the first ball bearing 610 and the second ball bearing 630 are also not limited to the above scheme, as long as it can be ensured that the first guide component 62 and the second guide component 64 can move relative to the magnet support 51 along the first direction (such as the X-axis direction mentioned above) based on the rolling of the first ball bearing 610, and that the second guide component 64 can move relative to the magnet support 51 along a second direction perpendicular to the first direction (such as the Y-axis direction mentioned above) based on the rolling of the second ball bearing 630.

[0054] Another embodiment of this application provides a smart terminal, which may be, for example, a smartphone, tablet computer, personal computer, wearable device, etc., and the smart terminal includes a camera device as described in the foregoing embodiments. It is understood that, because the smart terminal includes the camera device as described in the foregoing embodiments, it can also achieve the aforementioned beneficial technical effects compared to the prior art.

[0055] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A camera device, characterized in that, The imaging device includes a lens assembly, an autofocus device, an imaging chip assembly, an optical path adjustment component, a magnet assembly, and a coil. The imaging chip assembly is disposed on one side of the optical axis of the lens assembly. The optical path adjustment component receives optical signals collected by the lens assembly and adjusts the optical path of the optical signals to transmit the optical signals to the imaging chip assembly for imaging. The coil is fixed to the imaging chip assembly. The magnet assembly and the coil are used to generate electromagnetic thrust through electromagnetic induction to drive the coil and the imaging chip assembly to move along a direction perpendicular to the optical axis of the lens assembly. The optical axis of the lens assembly is perpendicular to and aligned with the main optical surface of the optical path adjustment component. The imaging chip assembly is aligned with the main optical surface of the optical path adjustment component. The lens assembly includes a first lens unit and a second lens unit. The autofocus device drives the second lens unit to move along its own optical axis for focusing.

2. The camera device as described in claim 1, characterized in that, The camera device also includes a guide assembly, which is movably mounted in the magnet assembly relative to the magnet assembly, and the coil and the imaging chip assembly are both fixedly mounted on the guide assembly.

3. The camera device as described in claim 2, characterized in that, The guiding assembly includes a first guide member and a second guide member. The first guide member is movably mounted in the magnet assembly along a first direction, and the second guide member is movably mounted on the first guide member along a second direction. The first direction is perpendicular to the second direction. The coil and the imaging chip assembly are both fixedly mounted on the second guide member.

4. The camera device as described in claim 3, characterized in that, The magnet assembly includes a magnet support and a magnet. The magnet support includes a support base plate. The support base plate includes a main body and a first extension plate and a second extension plate extending from the main body toward the same side. The magnet is mounted on the main body and the first extension plate. The first guide includes a first guide arm and a second guide arm connected to each other. The first guide arm overlaps between the first extension plate and the second extension plate, and the second guide arm is arranged along the second extension plate.

5. The camera device as described in claim 4, characterized in that, The guide assembly further includes a first ball set, which includes a plurality of first balls, which are rotatably disposed between the magnet assembly and the first guide member, and between the magnet assembly and the second guide member, along the first direction.

6. The camera device as described in claim 5, characterized in that, The guide assembly further includes a second ball set, which includes a plurality of second balls, which are rolled between the first guide member and the second guide member in the second direction.

7. The camera device as described in claim 4, characterized in that, The camera device also includes a main housing, and the optical path adjustment component is installed in the main housing; the main housing forms a first connecting frame and a second connecting frame, the first connecting frame being used to assemble the autofocus device, and the second connecting frame being used to assemble the magnet assembly.

8. The camera device as described in claim 7, characterized in that, The magnet support also includes a frame structure that is vertically arranged relative to the support base plate, and the frame structure has a notch for fitting into the second connecting frame.

9. The camera device as described in claim 3, characterized in that, The camera device further includes a connection assembly, which includes a rigid mounting portion and at least partially flexible connecting portions. The imaging chip assembly is mounted in the mounting portion and electrically connected to the mounting portion. The second guide is fixed to the mounting portion. The connecting portion includes a connecting portion body and an extension portion. The connecting portion body is connected to the mounting portion, and the extension portion extends from the connecting portion body and is used to establish an electrical connection with the outside. The coil is electrically connected to the mounting portion through the second guide.

10. A smart terminal, characterized in that, Includes the camera device as described in any one of claims 1-9.

Images