Camera module and electronic equipment

Abstract

The embodiment of the utility model provides a camera module and electronic equipment. The camera module comprises a base, a lens assembly, a plurality of driving parts and a plurality of shading blades, wherein the lens assembly is arranged in the base; the plurality of shading blades are annularly and sequentially arranged, and one end of each shading blade is connected to the lens assembly; one shading blade is connected with one end of one driving piece; the other end of the driving piece is connected to the base, and the driving piece is used for driving the shading blades connected with the driving piece to be unfolded or folded.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to a camera module and electronic equipment. Background Technology

[0002] As users increasingly demand the best user experience, the functions of electronic devices such as smartphones and tablets are becoming more and more diverse, and users are also placing higher demands on the user experience of each component. For example, the image quality of camera modules, as a common functional component, has become a major concern for users.

[0003] However, when the camera module is in a shooting scene with strong ambient light, the image obtained by the camera module is prone to glare or ghosting, which greatly reduces the user's experience of using the camera module. Utility Model Content

[0004] This application aims to provide a camera module and electronic device that at least solves the problem of glare easily appearing in images obtained by existing camera modules.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides a camera module, including: a base, a lens assembly, multiple driving components, and multiple light-shielding blades; wherein,

[0007] The lens assembly is disposed within the base;

[0008] Multiple light-shielding blades are arranged in a ring in sequence, and one end of each light-shielding blade is connected to the lens assembly;

[0009] One of the light-shielding blades is connected to one end of one of the driving components;

[0010] The other end of the drive unit is connected to the base, and the drive unit is used to drive the light-shielding blades connected to it to open or close.

[0011] Secondly, embodiments of this application provide an electronic device including any of the above-mentioned camera modules.

[0012] In this embodiment, since the multiple light-shielding blades are arranged in a ring, the driving component can drive the light-shielding blades to open or close, thereby adjusting the light-shielding angle of the blades, adjusting the range of incident light, and improving glare or ghosting problems caused by incident light at special angles. This improves the imaging quality of the camera module and greatly enhances the user experience.

[0013] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a front view structural diagram of a camera module according to an embodiment of this application;

[0016] Figure 2 yes Figure 1 The diagram shows a side view of the camera module.

[0017] Figure 3 yes Figure 1 The diagram shows the exploded structure of the camera module.

[0018] Figure 4 yes Figure 1 One of the working status diagrams of the camera module shown;

[0019] Figure 5 yes Figure 1 The second diagram showing the working status of the camera module;

[0020] Figure 6 This is a schematic diagram of another camera module described in an embodiment of this application;

[0021] Figure 7 yes Figure 6 The diagram shows the exploded structure of the camera module.

[0022] Reference numerals: 11 - light-shielding blade, 13 - image sensor, 14 - lens assembly, 15 - base, 16 - drive component, 17 - retaining ring, 18 - focusing mechanism, 181 - housing, 182 - bracket. Detailed Implementation

[0023] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Reference Figure 1 The diagram shows a front view of a camera module according to an embodiment of this application. (Refer to...) Figure 2 , showed Figure 1 The side view diagram of the camera module shown is for reference. Figure 3 , showed Figure 1 The diagram shows the exploded structure of the camera module. Figures 1 to 3 As shown, the camera module may specifically include: a base 15, a lens assembly 14, multiple driving components 16, and multiple light-shielding blades 11; wherein, the lens assembly 14 is disposed within the base 15; the multiple light-shielding blades 11 are arranged in a ring and sequentially, and one end of the light-shielding blade 11 is connected to the lens assembly 14; one light-shielding blade 11 is connected to one end of a driving component 16; the other end of the driving component 16 is connected to the base 15, and the driving component 16 can be used to drive the light-shielding blade 11 connected to it to open or close.

[0028] In this embodiment, since multiple light-shielding blades 11 are arranged in a ring, the driving component 16 can drive the light-shielding blades 11 to open or close, thereby adjusting the light-shielding angle of the light-shielding blades 11, adjusting the range of incident light, and improving glare or ghosting problems caused by incident light at special angles. This improves the imaging quality of the camera module and greatly enhances the user experience.

[0029] In some alternative embodiments of this application, such as Figure 2 and Figure 3 As shown, the lens assembly 14 has a light-incident side, and the camera module may also include a fixing ring 17; wherein, the fixing ring 17 is fixedly connected to the light-incident side of the lens assembly 14, and one end of the light-shielding blade 11 is rotatably connected to the fixing ring 17. Under the drive of the driving member 16, the light-shielding blade 11 rotates along the end of it fixed on the fixing ring 17.

[0030] In specific applications, the camera module may further include an image sensor 13. The lens assembly 14 may include an incident light side and an exit light side relatively opposite to the device. A retaining ring 17 is connected to the incident light side of the lens assembly 14, and the image sensor 13 may be connected to the exit light side of the lens assembly 14. The lens assembly 14 may include at least one optical lens and can be used to conduct light incident from the incident light side to the image sensor 13. As the core component of the camera module, the image sensor 13 can receive the light conducted by the lens assembly 14 and convert the light into an image signal to generate an image.

[0031] In this embodiment, a fixing ring 17 can also be provided on the light-incident side of the lens assembly 14. The fixing ring 17 can be used to install and support the light-shielding blade 11, and one end of the light-shielding blade 11 can be rotatably connected to the fixing ring 17. By rotatably connecting one end of the light-shielding blade 11 to the fixing ring 17, the light-shielding blade 11 can rotate relative to the fixing ring 17 to realize the opening and closing of the light-shielding blade 11. Specifically, when the light-shielding blade 11 is open, the obstruction of incident light on the light-incident side of the lens assembly 14 is small, and more incident light enters the lens assembly 14. When the light-shielding blade 11 is closed, the obstruction of incident light on the light-incident side of the lens assembly 14 is large, and less incident light enters the lens assembly 14.

[0032] Specifically, the light-shielding blade 11 can be made of a light-shielding material. Driven by the drive unit 16, the light-shielding blade 11 can rotate relative to the fixed ring 17 to control the opening angle of the light-shielding blade 11 and adjust the incident light entering the lens assembly 14.

[0033] For example, the retaining ring 17 can be fixed to the light-incident side of the lens assembly 14 by means of snap-fit, fastener connection, adhesive bonding, etc. In this embodiment of the application, the connection method of the retaining ring 17 on the lens assembly 14 is not specifically limited.

[0034] It should be noted that, in specific applications, those skilled in the art can also directly connect the light-shielding blade 11 to the lens assembly 14 according to actual needs. For example, if the lens assembly 14 includes a housing, one end of the light-shielding blade 11 can be directly rotatably connected to the housing of the lens assembly 14. This application does not specifically limit this aspect.

[0035] Reference Figure 4 , showed Figure 1 One of the working status diagrams of the camera module shown, refer to Figure 5 , showed Figure 1 The second diagram shows the working state of the camera module. (See diagram for example.) Figure 4 and Figure 5 As shown, with the opening angle of the light-blocking blade 11 adjusted, the angle of the incident light rays entering the lens assembly 14 also changes due to the light-blocking effect of the light-blocking blade 11. Figure 4 As shown, because the light-shielding blade 11 has the largest opening angle, incident light (dashed line in the figure) can enter the lens assembly 14 from the edge of the lens assembly 14, and be transmitted through the lens assembly 14 to finally form an image on the image sensor 13. Figure 4 In the operating state shown, the lens assembly 14 can accept a light range of S1, which is relatively large. When the light received by the image sensor 13 is not strong and the image generated by the image sensor 13 does not exhibit glare or ghosting, the image quality of the image sensor 13 is generally high. Therefore, Figure 4 The fully opened state of the light-shielding blades 11 shown can be considered as the initial working state of the camera module.

[0036] In practical applications, due to Figure 4 The operating state shown allows for a wide range of light reception; incident light entering from the light-incident edge of the lens assembly 14 typically causes glare. To prevent incident light from the light-incident edge from affecting the quality of the image generated on the image sensor 13, the drive unit 16 can drive the light-shielding blade 11 to move and close at a certain angle. Figure 5 The state shown. (As indicated) Figure 5 As shown, relative Figure 4 As shown, when the light-blocking blade 11 is fully open, Figure 5In the camera module shown, the opening angle of the light-shielding blade 11 is relatively small. At this time, the light range that the lens assembly 14 can receive, S1, is concentrated in the central area of ​​the light-incident side of the lens assembly 14. Due to the light-shielding effect of the light-shielding blade 11, incident light may be absorbed by the light-shielding blade 11 when it strikes it. Therefore, the incident light cannot enter the lens assembly 14 from the edge of the light-incident side, i.e., a corresponding area S2 where incident light cannot be received will be formed inside the lens assembly 14. This prevents strong light from being projected onto the image sensor 13 through the edge of the lens assembly 14 and forming glare arcs or ghosting on the image sensor 13.

[0037] In some optional embodiments of this application, the driving member 16 is electrically connected to the image sensor 13. When the light intensity received by the image sensor 13 exceeds a first threshold or the generated image exhibits glare, the driving member 16 drives the light-shielding blades 11 to reduce their opening angle. This prevents incident light from entering the lens assembly 14 from the edge of the light-incident side and being transmitted to the image sensor 13 via the lens assembly 14. Consequently, glare or ghosting can be avoided in the image generated by the image sensor 13. Generally, when the light intensity received by the image sensor 13 exceeds the first threshold, the image generated by the image sensor 13 is considered to have a risk of glare.

[0038] Specifically, when the light intensity received by the image sensor 13 does not exceed the first threshold and the generated image does not have a glare arc, the drive unit 16 can drive the light-shielding blade 11 to expand its opening angle to remove the light-shielding blade 11 from blocking the incident light and the light-receiving range of the lens assembly 14. This allows as much incident light as possible to enter the lens assembly 14 and be transmitted to the image sensor 13, thereby improving the imaging quality of the image sensor 13.

[0039] In practical applications, by electrically connecting the image sensor 13 to the drive unit 16, the drive unit 16 can easily obtain the image quality generated by the image sensor 13 and automatically adjust the opening angle of the light-shielding blade 11 according to the image quality generated by the image sensor 13, so as to adjust the light-incident range on the light-incident side of the lens assembly 14. In turn, the image quality generated by the image sensor 13 can be adjusted to improve the user's experience of using the camera module.

[0040] In some alternative embodiments of the application, the drive member 16 is connected to the other end of the light-shielding blade 11. In practical applications, since one end of the light-shielding blade 11 is rotatably connected to the fixed ring 17, the rotation amplitude of the light-shielding blade 11 is the largest during its rotation relative to the fixed ring 17. By connecting the drive member 16 to the other end of the light-shielding blade 11, the driving force output by the drive member 16 can be directly applied to the other end of the light-shielding blade 11, thereby improving the driving efficiency of the drive member 16 in driving the light-shielding blade 11.

[0041] It should be noted that connecting the driving component 16 to the other end of the light-shielding blade 11 can mean either directly connecting the driving component 16 to the very end of the other end of the light-shielding blade 11, or connecting the driving component 16 to a position near the very end of the other end of the light-shielding blade 11. This application does not limit this. Furthermore, in specific applications, those skilled in the art can connect the driving component 16 to other positions on the light-shielding blade 11 according to actual needs. For example, connecting it to one end of the light-shielding blade 11, or connecting it to a position near the middle of the light-shielding blade 11. This application embodiment does not specifically limit the connection position of the driving component 16 on the light-shielding blade 11.

[0042] In some alternative embodiments of this application, the driving member 16 may be an electrodeformable member. When the electrodeformable member is energized, it extends or contracts to drive the light-shielding blade 11 to expand outward or close inward, thereby adjusting the incident light range of the lens assembly 14.

[0043] In specific applications, the electrodeformable element can be made of an electrodeformable material. Therefore, the electrodeformable element can change shape when energized, thereby driving the light-shielding blade 11 connected to it to move together and adjust the opening angle. For example... Figure 4 As shown, when there is glare in the image generated by the image sensor 13, the electrodeformable element can be energized and closed at a certain angle. Figure 5 The state shown is such that incident light rays at the light-incident edge angle of the lens assembly 14 can be blocked by the light-shielding blade 11 until the glare of the image generated by the image sensor 13 disappears, and then power supply to the electrodeformer is stopped.

[0044] In some optional embodiments of this application, a control circuit may also be provided on the base 15; the camera module may further include an image sensor 13, which is disposed on the lens assembly 14 on the side away from the light-shielding blade 11 and electrically connected to the control circuit on the base 15. The control circuit is connected to the electrodeformer and the image sensor 13 respectively. When the light intensity received by the image sensor 13 exceeds a first threshold or the generated image has a glare arc, the control circuit can supply power to the electrodeformer to cause the electrodeformer to move along... Figure 3 The light-shielding blade 11 extends in direction A so that it closes at a certain angle along direction B. In this way, incident light rays at the edge angle of the light-incident side of the lens assembly 14 can be blocked by the light-shielding blade 11 until the glare in the image generated by the image sensor 13 disappears, at which point power supply to the electrodeformation element stops. This ensures that the light-shielding blade 11 closes to a certain angle and then stops closing further. Figure 4 The status shown has been adjusted to Figure 5 The state shown.

[0045] It should be noted that in practical applications, the driving component 16 can also be other components capable of linear motion, such as an electric drive rod. The specific type of the driving component is not limited in the embodiments of this application.

[0046] In some optional embodiments of this application, the electrodeformable element is an electrodeformable lead screw. When energized, the electrodeformable lead screw can extend and retract along its axial direction to adjust the opening angle of the light-shielding blade 11 connected to it. In practical applications, since the electrodeformable lead screw is long and thin, its axial deformation allows for a larger deformation stroke, thus facilitating more efficient driving of the light-shielding blade 11 to open and close. Moreover, when the electrodeformable element is an electrodeformable lead screw, its smaller size results in a smaller space occupied by the electrodeformable element, which is beneficial for its placement in the camera module.

[0047] It should be noted that, in practical applications, those skilled in the art may also choose to design the electrodeformable element as a block or other shape. The specific type of the electrodeformable element is not limited in the embodiments of this application.

[0048] In some alternative embodiments, by directly mounting the control circuit on the base 15, the operation of setting up a separate device for the control circuit can be avoided, simplifying the structure of the camera module and reducing its size.

[0049] In some alternative embodiments, the control circuit can be mounted on a circuit board, which is then fixed to the base 15. By using a separate circuit board for the control circuit, the layout flexibility of the control circuit can be greatly improved.

[0050] In some optional embodiments of the present application, such as Figures 1 to 5 As shown, the lens assembly 14 can be fixedly connected to the image sensor 13, and one end of the drive component 16 is fixed to the base 15, while the other end is fixed to the light-shielding blade 11. By directly fixing the lens assembly 14 to the image sensor 13 and then fixing the image sensor 13 to the base 15, the overall connection method of the lens assembly 14 is relatively simple and the connection is also relatively reliable.

[0051] Reference Figure 6 This shows a schematic diagram of another camera module according to an embodiment of this application. (Refer to...) Figure 7 , showed Figure 6 The diagram shows the exploded structure of the camera module. Figure 6 and Figure 7 As shown, the camera module may further include a focusing mechanism 18, which may specifically include: a housing 181, a bracket 182, and an electromagnetic drive component. The lens assembly 14 is fixed on the bracket 182, and the housing 181 is sleeved on the bracket 182 and the lens assembly 14. The housing 181 is fixedly connected to the base 15. The electromagnetic drive component is disposed on at least one of the housing 181 and the bracket 182. The electromagnetic drive component can be used to drive the bracket 182 and the lens assembly 14 to move within the housing 181 to achieve focusing.

[0052] Specifically, Figure 6 , Figure 7 The lens assembly 14 can be a focusing lens assembly, and the lens assembly 14 can be fixedly connected to the bracket 182. The electromagnetic drive can be provided on the housing 181 and / or the bracket 182, and the electromagnetic drive can drive the bracket 182 and the lens assembly 14 to move back and forth along the axis of the camera module to achieve focusing.

[0053] In practical applications, when the camera module has a focusing function, focusing can be performed first, followed by adjusting the opening angle of the light-shielding blade 11. That is, in the initial state, the light-shielding blade 11 can be kept in its maximum open state. Then, when focusing the lens assembly 14, the lens assembly 14 has already driven the fixing ring 17 to move along direction A, so the opening angle of the light-shielding blade 11 has changed relative to the initial state. After focusing is completed, the opening angle of the light-shielding blade 11 can be adjusted again by the driving component 16.

[0054] Optionally, the electromagnetic drive may specifically include a magnetic element and a coil; wherein, one of the magnetic element and the coil is disposed on the side of the housing 181 near the bracket 182, and the other of the magnetic element and the coil is disposed on the bracket 182, with the magnetic element and the coil being disposed at a distance from each other. When the coil is energized, the electromagnetic interaction between the magnetic element and the coil can drive the bracket 182 and the lens assembly 14 on the bracket 182 to move relative to the housing 181, thereby achieving the focusing function.

[0055] For example, the magnetic component can be placed on the bracket 182 and the coil can be placed on the housing 181. Alternatively, the magnetic component can be placed on the housing 181 and the magnetic component can be placed on the bracket 182. This application embodiment does not specifically limit the arrangement of the coil and the magnetic component.

[0056] In this embodiment, the number of light-blocking leaves 11 can be at least two, and the at least two light-blocking leaves 11 are arranged in a ring-like structure. Specifically, the shape of each light-blocking leaf 11 can be designed with reference to the structure of a petal, so that when the at least two light-blocking leaves 11 are opened or closed in a ring, an effect similar to the opening or closing of a flower can be formed.

[0057] It should be noted that the embodiments of this application only show the case where there are 8 light-shielding blades 11. In practical applications, the number of light-shielding blades 11 in the camera module can also be 2, 4, 5 or 10, etc. The embodiments of this application do not make specific limitations on the number of light-shielding blades 11.

[0058] In summary, the camera module described in the embodiments of this application can include at least the following advantages:

[0059] In this embodiment, since the multiple light-shielding blades are arranged in a ring, the driving component can drive the light-shielding blades to open or close, thereby adjusting the light-shielding angle of the blades, adjusting the range of incident light, and improving glare or ghosting problems caused by incident light at special angles. This improves the imaging quality of the camera module and greatly enhances the user experience.

[0060] This application also provides an electronic device, which may specifically include the camera module described in any of the above embodiments.

[0061] It should be noted that in this embodiment, the structure of the camera module is the same as that of the camera module described in any of the above embodiments, and its beneficial effects are similar, so it will not be described in detail here.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that, The camera module includes: a base (15), a lens assembly (14), multiple drive components (16), and multiple light-shielding blades (11); wherein, The lens assembly (14) is disposed within the base (15); Multiple light-shielding blades (11) are arranged in a ring and one end of each light-shielding blade (11) is connected to the lens assembly (14). One of the light-shielding blades (11) is connected to one end of one of the drive members (16); The other end of the drive unit (16) is connected to the base (15), and the drive unit (16) is used to drive the light-shielding blade (11) connected to it to open or close.

2. The camera module according to claim 1, characterized in that, The lens assembly (14) has a light-incident side, and the camera module further includes a retaining ring (17); wherein, The fixing ring (17) is fixedly connected to the light-incident side of the lens assembly (14), and one end of the light-shielding blade (11) is rotatably connected to the fixing ring (17). Under the drive of the driving member (16), the light-shielding blade (11) rotates along the end of itself fixed to the fixing ring (17).

3. The camera module according to claim 2, characterized in that, The drive unit (16) is connected to the other end of the light-shielding blade (11).

4. The camera module according to claim 1, characterized in that, The driving element (16) is an electrodeformable element. When the electrodeformable element is energized, it extends or contracts to drive the light-shielding blade (11) to close or unfold.

5. The camera module according to claim 4, characterized in that, The electro-deformable component is an electro-deformable lead screw.

6. The camera module according to claim 1, characterized in that, The base (15) is provided with a control circuit; The camera module further includes an image sensor (13), which is disposed on the side of the lens assembly (14) away from the light-shielding blade (11) and is electrically connected to the control circuit on the base (15).

7. The camera module according to claim 6, characterized in that, The lens assembly (14) is fixedly connected to the image sensor (13).

8. The camera module according to claim 6, characterized in that, The camera module further includes a focusing mechanism (18), which includes a housing (181), a bracket (182), and an electromagnetic drive component. The lens assembly (14) is fixed on the bracket (182), and the housing (181) is sleeved on the bracket (182) and the lens assembly (14). The housing (181) is fixedly connected to the base (15). The electromagnetic drive is disposed on at least one of the housing (181) and the bracket (182), and the electromagnetic drive is used to drive the bracket (182) and the lens assembly (14) to move within the housing (181) to achieve focusing.

9. The camera module according to claim 8, characterized in that, The electromagnetic drive component includes a magnetic component and a coil; wherein... One of the magnetic element and the coil is provided on the side of the housing (181) near the bracket (182), and the other of the magnetic element and the coil is provided on the bracket (182), with the magnetic element and the coil being arranged at a distance from each other.

10. An electronic device, characterized in that, Includes the camera module as described in any one of claims 1-9.

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