Camera modules and electronic equipment

Abstract

The present invention relates to a camera module and electronic equipment, the camera module comprising: a substrate having a mounting surface; a bracket comprising a first surface and a second surface disposed opposite to each other, and a through hole extending from the first surface to the second surface; the mounting surface being connected to the first surface of the bracket; a voice coil motor disposed on the second surface of the bracket; a lens mounted on the voice coil motor and opposite to the through hole, the voice coil motor being capable of driving the lens to move to compensate for image blur caused by shaking; a photosensitive component disposed in the through hole and opposite to the lens; and an anti-shake component disposed on the substrate and capable of driving the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens to compensate for image blur caused by shaking. In addition to adjusting the lens through the voice coil motor, the camera module can also adjust the photosensitive component through the anti-shake component to compensate for lens shake in the roll direction. This dual optical anti-shake method can greatly improve the imaging quality of the camera module.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to a camera module and electronic equipment. Background Art

[0002] Current optical image stabilization (OIS) used in mobile phone camera modules primarily utilizes lens-moving technology. This technology uses a gyroscope to detect phone movement and then utilizes a voice coil motor, memory metal, or piezoelectric material to drive the lens in the X and Y axes, thereby compensating for jitter in these directions. Examples include the camera modules disclosed in patent documents CN203377963U and TW1454733B.

[0003] The X-axis is perpendicular to the Y-axis, the optical axis is the Z-axis, and the plane perpendicular to the optical axis is the plane containing the X- and Y-axes. Lens movement in the X- and Y-axis directions primarily includes translation within the plane containing the X- and Y-axes, as well as rotational movement around the X-axis (pitch) and the Y-axis (yaw). This allows for lens shake compensation in the X-, Y-, pitch, and yaw directions.

[0004] However, due to structural design limitations, the current mainstream lens movement technology cannot compensate for lens shake in the Roll direction (rotation direction around the Z axis), and cannot meet user needs. Summary of the Invention

[0005] Based on this, it is necessary to provide a camera module and electronic equipment to address the problem that the existing technology cannot compensate for the shake of the lens in the Roll direction.

[0006] A camera module comprises: a substrate; a bracket comprising a first surface and a second surface arranged opposite to each other, and a through hole extending from the first surface of the bracket to the second surface of the bracket, the first surface of the bracket being connected to the substrate, and the through hole being opposite to the substrate; a voice coil motor mounted on the second surface of the bracket and opposite to the through hole; a lens, the lens being mounted on the bracket voice coil motor and opposite to the through hole; the voice coil motor being capable of driving the lens to move to compensate for image blur caused by jitter; a photosensitive component being arranged in the through hole and opposite to the lens; a photosensitive component moving component being arranged on the substrate and capable of driving the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens to compensate for image blur caused by jitter.

[0007] The camera module provided by the present invention not only uses a voice coil motor to adjust the lens to achieve lens shake compensation in the X-axis, Y-axis, pitch, and yaw directions, but also uses the anti-shake component to adjust the photosensitive component to achieve lens shake compensation in the roll direction. In other words, the camera module provided by the present invention can achieve dual optical image stabilization, improving the imaging quality of the camera module.

[0008] Furthermore, the photosensitive component moving component includes a moving part, which is arranged on the substrate, and the photosensitive component is arranged on the moving part; a fixed part, which is fixed on the substrate, and the fixed part can drive the moving part to rotate on a plane perpendicular to the optical axis of the lens, thereby driving the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens.

[0009] Furthermore, the fixed part has a hollow structure and a first magnetic unit arranged on the side wall of the hollow structure; the movable part is located in the hollow structure, and the movable part includes a mounting seat and a second magnetic unit, the second magnetic unit is arranged on the side wall of the mounting seat, and the photosensitive component is arranged on the side of the mounting seat away from the substrate; wherein, at least one of the first magnetic unit and the second magnetic unit is an electromagnetic unit, and through the cooperation of the first magnetic unit and the second magnetic unit, the movable part can be driven to rotate on a plane perpendicular to the optical axis of the lens, thereby driving the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens.

[0010] Furthermore, the movable part further includes: a rotating shaft, one end of the rotating shaft is arranged on the base plate, the other end of the rotating shaft is connected to the mounting seat, and the mounting seat can rotate around the axis of the rotating shaft.

[0011] Furthermore, the movable part further includes: a base, which is arranged on the substrate, and the rotating shaft is installed on the base.

[0012] Furthermore, the fixing portion is provided with a fourth magnetic unit, and the base is provided with a third magnetic unit. At least one of the third and fourth magnetic units is an electromagnetic unit. The third and fourth magnetic units cooperate to drive the base to translate in a plane perpendicular to the lens optical axis. This improves the compensation for lens shake in the X- and Y-axis directions, thereby enhancing the anti-shake effect of the entire camera module.

[0013] Furthermore, a groove is provided on the substrate, and the photosensitive component moving component is arranged in the groove, which can reduce the thickness of the entire camera module.

[0014] Furthermore, the substrate includes a first rigid circuit board, a second rigid circuit board, and a flexible circuit board connecting the first and second rigid circuit boards; wherein the mounting surface is provided on the first rigid circuit board. In the camera module provided by the present invention, the substrate is a flexible-rigid composite board, which makes it easier to install the camera module on other devices.

[0015] Furthermore, the camera module also includes: a filter, which is arranged between the lens and the photosensitive component, so as to further improve the imaging quality of the camera module.

[0016] The present invention also provides an electronic device, which includes: a body; and a camera module as described above, which is arranged on the body. This can improve the optical image stabilization effect of the entire electronic device and improve the photo quality of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic cross-sectional view of the camera module provided by the present invention;

[0018] Figure 2 A schematic cross-sectional view of a bracket of a camera module provided by the present invention;

[0019] Figure 3 A schematic cross-sectional view of the photosensitive component and movable component of the camera module provided by the present invention;

[0020] Figure 4 A cross-sectional schematic diagram of another photosensitive component moving component of the camera module provided by the present invention. DETAILED DESCRIPTION

[0021] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figure 1 and Figure 2 As shown, in the embodiment provided by the present invention, the camera module includes: a substrate 1, a bracket 2, a voice coil motor 3, a lens 4, a photosensitive component 5 and a photosensitive component moving component 6.

[0025] The substrate 1 is provided with a mounting surface 11. The bracket 2 includes a first surface 21 and a second surface 22 disposed opposite each other, and a through hole 23 extending from the first surface 21 to the second surface 22. The mounting surface 11 is connected to the first surface 21 and covers one end of the through hole 23. The mounting surface 11 and the first surface 11 can be connected together by means such as gluing.

[0026] The voice coil motor 3, which features optical image stabilization, is mounted on the second surface 22 of the bracket. The lens 4 is mounted on the voice coil motor 3, opposite the through-hole 23. The voice coil motor 3 can drive the lens 4 in motion (in any one of the following directions, including motion along the X-axis, motion along the Y-axis, rotation about the X-axis, and rotation about the Y-axis, or any combination thereof), thereby compensating for lens shake in the X-axis, Y-axis, pitch, and yaw directions, thereby compensating for image blur caused by lens shake in these directions. The voice coil motor 3 comprises a housing 31 and an actuator 32 disposed within the housing 31. The housing 31 is attached to the second surface 22 of the bracket by gluing or other means. The actuator 32 is connected to the lens 4 to drive its motion. In this embodiment, the optical axis of the lens 4 is the Z-axis, and the plane perpendicular to the optical axis is the plane containing the X- and Y-axes. The pitch direction is the direction of rotation about the X-axis, and the yaw direction is the direction of rotation about the Y-axis. It can be understood that when the mounting surface 11 is a plane, the mounting surface 11 is parallel to the plane where the X-axis and the Y-axis are located, and the optical axis of the lens 4 is perpendicular to the mounting surface 11 .

[0027] The photosensitive component 5 is located in the through hole 23 and is opposite to the lens 4. It can receive light transmitted from the lens 4. In the actual product, the substrate 1 seals one end of the through hole 23, and the voice coil motor 3 seals the other end of the through hole 23, so that external light can only enter the through hole 23 from the side of the lens 4, thereby reducing the interference of stray light on the photosensitive component 5.

[0028] The photosensitive component moving component 6 is arranged on the substrate 1, and can drive the photosensitive component 5 to rotate on a plane perpendicular to the optical axis of the lens 4, thereby compensating for image blur caused by the shaking of the lens 4 in the Roll direction.

[0029] In this embodiment, in addition to adjusting the lens 4 through the voice coil motor 3 to achieve lens jitter compensation in the X-axis direction, Y-axis direction, Pitch direction and Yaw direction, the camera module can also adjust the photosensitive component through the photosensitive component moving component 6 to achieve compensation for lens jitter in the Roll direction, thereby realizing dual optical image stabilization of the camera module and improving the imaging quality of the camera module.

[0030] like Figure 1 As shown, in the embodiment provided by the present invention, the camera module further includes a filter 7, which is arranged between the lens 4 and the photosensitive component 5 to improve the shooting performance of the camera module.

[0031] like Figure 2 As shown, in the embodiment provided by the present invention, in the direction from the second surface 22 to the first surface 21 of the bracket 2, the through hole 23 includes a first hole position 231, a second hole position 232, and a third hole position 233 arranged coaxially. All three are circular holes, and the diameter of the second hole position 232 is smaller than the diameters of the first hole position 231 and the third hole position 233. That is, the first hole position 231 and the second hole position 232 constitute a first stepped hole, and the second hole position 232 and the third hole position 233 constitute a second stepped hole. The filter 7 is disposed on the shoulder of the first stepped hole, and the photosensitive component 5 is disposed in the cavity enclosed by the third hole position 233 and the substrate 1. In addition, in other embodiments provided by the present invention, the first hole position 231, the second hole position 232, and the third hole position 233 can also be square holes, etc., and the present invention does not make specific limitations here.

[0032] like Figure 1 and 3As shown, in the embodiment provided by the present invention, the photosensitive component moving assembly 6 includes a moving portion 61 and a fixed portion 62. The combination of the two is equivalent to a micro-electromechanical system. The fixed portion 62 is fixed to the substrate and has a hollow structure 621 and a first magnetic unit 622. The first magnetic unit 621 is located on the side wall of the hollow structure. The moving portion 61 is located within the hollow structure 621 and includes a mounting seat 611 and a second magnetic unit 612. The second magnetic unit 612 is located on the side wall of the mounting seat 611. The photosensitive component 5 is located on the surface of the mounting seat 611 away from the substrate. At least one of the first magnetic unit 622 and the second magnetic unit 612 is an electromagnetic unit (an electromagnetic unit generates magnetic force when energized, such as an electromagnetic coil). The cooperation between the first magnetic unit 622 and the second magnetic unit 612 can drive the moving portion 61 to rotate in a plane perpendicular to the lens optical axis, thereby driving the photosensitive component 5 to move in the roll direction.

[0033] Specifically, in this embodiment, the second magnetic unit 612 is a permanent magnet, which is arranged around the mounting base 611 (it is understandable that the movable portion 61 itself can be a permanent magnet); the first magnetic unit 622 is an electromagnetic coil, which is arranged around the side wall of the hollow structure 621 and opposite to the permanent magnet. It is understandable that the movable portion 61 is equivalent to the rotor structure of the motor, and the fixed portion 62 is equivalent to the stator structure of the motor. In addition, in other embodiments provided by the present invention, the arrangement of the first magnetic unit 622 and the second magnetic unit 612 can also be: the second magnetic unit 612 is an electromagnetic coil, the first magnetic unit 622 is a permanent magnet, or both are electromagnetic coils at the same time.

[0034] Furthermore, in this embodiment, the fixed portion 62 is a frame-shaped structure, and the movable portion 61 is a square solid body disposed within the frame, and both the fixed portion 62 and the movable portion 61 are disposed on the mounting surface 11. Of course, in other embodiments provided by the present invention, the structural arrangement of the fixed portion 62 and the movable portion 61 may also be other arrangements, such as the fixed portion 62 being an annular structure (or an arc-shaped structure) and the movable portion 61 being a cylindrical structure. Furthermore, in other embodiments provided by the present invention, the arrangement positions of the fixed portion 62 and the movable portion 61 may also be other arrangements, such as the movable portion 61 being disposed on the mounting surface 11 and the fixed portion 62 being disposed on the sidewalls surrounding the substrate.

[0035] like Figure 3As shown, in the embodiment provided by the present invention, the movable portion 61 also includes a rotating shaft 613. One end of the rotating shaft 613 is provided on the substrate 1, and the axis of the rotating shaft 613 is provided perpendicular to the mounting surface 11; the mounting seat 612 is provided at the other end of the rotating shaft 613 and can rotate around the axis of the rotating shaft 613, and the photosensitive component 5 is provided on the side of the mounting seat 612 away from the mounting surface 11. In addition, in this embodiment, the rotating shaft 613 and the mounting seat 612 are rotationally connected, and the rotating shaft 613 and the substrate 1 cannot rotate relative to each other. Of course, in other embodiments provided by the present invention, the rotating shaft 613 and the substrate 1 can also be rotationally connected, and the rotating shaft 613 and the mounting seat 11 can be fixed and cannot rotate relative to each other.

[0036] Furthermore, in the embodiment provided by the invention, the movable portion 61 further includes a base 614, the base 614 is disposed on the mounting surface 11, and the rotating shaft 613 is mounted on the base 614. Figure 3 As shown, in this embodiment, the fixing portion 62 is further provided with a third magnetic unit 623, and the base 614 is provided with a fourth magnetic unit 615. At least one of the third and fourth magnetic units 623 and 615 is an electromagnetic unit. The cooperation between the third and fourth magnetic units 623 and 615 drives the base 614 to translate in a plane perpendicular to the optical axis of the lens 4. Specifically, in this embodiment, the cooperation between the third and fourth magnetic units 623 and 615 causes the photosensitive component moving assembly 6 to translate in the X- and Y-axis directions, thereby driving the photosensitive component 5 to translate in the X- and Y-axis directions. This compensates for lens shake in the X- and Y-axis directions by adjusting the photosensitive component 5. When combined with lens shake compensation in the X- and Y-axis directions using a voice coil motor, this can improve the compensation for lens shake in the X- and Y-axis directions, thereby enhancing the anti-shake effect of the entire camera module.

[0037] Furthermore, in this embodiment, the number of the third magnetic units 623 and the number of the fourth magnetic units 615 can both be four, with the four third magnetic units 623 evenly distributed on the sidewalls of the hollow structure 611, and the four fourth magnetic units 615 evenly distributed on the base 614, with the third magnetic units 622 and the fourth magnetic units 615 corresponding one to one. Of course, in other embodiments of the present invention, the third magnetic units 622 and the fourth magnetic units 615 can also be arranged in other ways, which are not specifically limited by the present invention.

[0038] like Figure 4As shown, in the embodiment provided by the present invention, a groove 12 is provided on the substrate 1, and the photosensitive component moving component 6 is arranged in the groove 12. Specifically, the fixed part 62 and the moving part 61 of the photosensitive component moving component 6 are both arranged on the bottom surface of the groove 12. This can reduce the thickness of the entire camera module to a certain extent, which is conducive to the miniaturized design of the camera module.

[0039] In the embodiment provided by the present invention, the substrate 1 is a soft-rigid composite board, including a first hard circuit board, a second hard circuit board, and a flexible circuit board connecting the first hard circuit board and the second hard circuit board; wherein, the mounting surface 11 is provided on the first hard circuit board, that is, the bracket, the photosensitive component moving component and other components are all provided on the first hard circuit board. When the camera module is assembled with other devices (for example, when the camera module is assembled with a mobile phone case), the second hard circuit board can be bent to the back of the first hard circuit board or other suitable position to facilitate the installation of the camera module. wherein, in this embodiment, the back of the first hard circuit board is the surface opposite to the mounting surface.

[0040] The present invention further provides an electronic device comprising a main body and a camera module disposed on the main body, wherein the camera module is as described in any of the above embodiments, thereby improving the optical image stabilization effect of the entire electronic device and enhancing the image quality of the electronic device. In this embodiment, the electronic device may be a terminal product such as a mobile phone or a tablet computer.

[0041] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A camera module, characterized in that: include: substrate; a bracket, comprising a first surface and a second surface disposed opposite to each other, and a through hole extending from the first surface of the bracket to the second surface of the bracket, wherein the first surface of the bracket is connected to the substrate, and the through hole is opposite to the substrate; a voice coil motor, mounted on the second surface of the bracket and opposite to the through hole; A lens is mounted on the voice coil motor and is opposite to the through hole; the voice coil motor can drive the lens to move to compensate for image blur caused by shaking; A photosensitive component is disposed in the through hole and opposite to the lens; A photosensitive component moving component is provided on the substrate and can drive the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens to compensate for image blur caused by shaking; The photosensitive component moving component includes: A moving part is arranged on the substrate, and the photosensitive component is arranged on the moving part; a fixed portion fixed on the substrate, capable of driving the movable portion to rotate on a plane perpendicular to the optical axis of the lens, thereby driving the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens; The fixing portion has a hollow structure, and a first magnetic unit is arranged on a side wall of the hollow structure; The moving part is located in the hollow structure, and the moving part includes a mounting seat and a second magnetic unit, the second magnetic unit is arranged on a side wall of the mounting seat, and the photosensitive component is arranged on a side of the mounting seat away from the substrate; In which, at least one of the first magnetic unit and the second magnetic unit is an electromagnetic unit. Through the cooperation between the first magnetic unit and the second magnetic unit, the movable part can be driven to rotate on a plane perpendicular to the optical axis of the lens, thereby driving the photosensitive component to rotate on a plane perpendicular to the optical axis of the lens.

2. The camera module according to claim 1, wherein: The mobile unit further includes: A rotating shaft, one end of which is arranged on the base plate, and the other end of which is connected to the mounting seat, and the mounting seat can rotate around the axis of the rotating shaft.

3. The camera module according to claim 2, wherein: The mobile unit further includes: The base is arranged on the substrate, and the rotating shaft is installed on the base.

4. The camera module according to claim 3, wherein: A third magnetic unit is provided on the fixing portion, and a fourth magnetic unit is provided on the base. At least one of the third magnetic unit and the fourth magnetic unit is an electromagnetic unit. Through the cooperation between the third magnetic unit and the fourth magnetic unit, the base can be driven to translate on a plane perpendicular to the optical axis of the lens.

5. The camera module according to any one of claims 1 to 4, characterized in that: A groove is provided on the substrate, and the photosensitive component moving component is arranged in the groove.

6. The camera module according to claim 1, wherein: The substrate includes a first rigid circuit board, a second rigid circuit board, and a flexible circuit board connecting the first rigid circuit board and the second rigid circuit board; Wherein, the mounting surface is arranged on the first rigid circuit board.

7. The camera module according to claim 1, wherein: The camera module further includes: a filter, which is arranged between the lens and the photosensitive component.

8. An electronic device, characterized in that: include: ontology; and A camera module as described in any one of claims 1 to 7 is arranged on the body.

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