Camera module and electronic equipment
By introducing a light-through adjustment mechanism into the camera module and dynamically adjusting the light-through area of the light guide hole, the problem of poor stray light blocking during lens zooming is solved, and effective stray light blocking and improved shooting effects are achieved at different focal lengths.
Patent Information
- Application Number
- CN202510842069.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-19
AI Technical Summary
During the lens zoom process, the field of view angle of the camera module changes, causing the stray light path and source area to change. The shading area of the existing filter cannot effectively block the stray light, affecting the shooting effect.
A camera module is designed, including a lens, a support, a photosensitive element and a light-through adjustment mechanism. The light-through adjustment mechanism has a light-guiding hole. By adjusting the light-through area of the light-guiding hole, the shading area is dynamically adjusted to match the stray light shielding requirements at different focal lengths.
It can effectively block stray light at different focal lengths, improve the shooting effect, and ensure the clarity and quality of the shooting during the lens zoom process.
Smart Images
Figure CN120676230A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of communication equipment, and in particular to a camera module and electronic equipment. Background Art
[0002] With the rapid development of electronic devices, people's performance requirements for camera modules are increasing day by day. To improve the shooting effect of camera modules, most current camera modules use motor drive to realize the movement of the lens to adjust the imaging focal length.
[0003] In related technologies, a filter is placed between the camera module's lens and the photosensitive chip, and a light-shielding area is printed around the filter. The light-shielding area blocks unnecessary stray light during the imaging process to avoid ghosting, flare, and other phenomena during imaging. However, as the lens moves and zooms, the camera module's field of view changes, and the path and source area of the stray light also change accordingly. The light-shielding area of the filter is less effective in blocking stray light at some field of view angles, resulting in some stray light still being transmitted to the photosensitive chip, which in turn has a negative impact on the shooting effect. Summary of the Invention
[0004] The present application discloses a camera module and an electronic device to solve the problem in the related art that the light-shielding area of the filter has a poor shielding effect on stray light.
[0005] In order to solve the above technical problems, this application is implemented as follows: In a first aspect, an embodiment of the present application discloses a camera module, wherein the disclosed camera module includes a lens, a support, a photosensitive element, and a light adjustment mechanism; The lens, the support and the photosensitive element are stacked in sequence along the optical axis direction of the camera module, the support is provided with a light-through hole, and the two open ends of the light-through hole are respectively arranged opposite to the lens and the photosensitive element; The light-through adjustment mechanism is provided on the support and has a light-guiding hole, which is communicated with the light-through hole. The light-through adjustment mechanism is configured to cover or expose the edge area of the light-through hole by adjusting the light-through area of the light-guiding hole.
[0006] In a second aspect, an embodiment of the present application discloses an electronic device, which includes a device housing and the camera module described in the first aspect, wherein the camera module is installed in the device housing.
[0007] The technical solution adopted in this application can achieve the following technical effects: The camera module disclosed in the embodiment of the present application improves the related art. The disclosed camera module includes a lens, a support, a photosensitive element, and a light-through adjustment mechanism stacked in sequence along the optical axis. The support is provided with a light-through hole. The light-through adjustment mechanism is provided on the support. The adjustment mechanism has a light guide hole, and the light guide hole is connected to the light-through hole. During the zooming process of the lens, the light-through adjustment mechanism can adjust the light-through area of the light guide hole accordingly to block or expose the edge area of the light-through hole, thereby realizing dynamic adjustment of the light-shielding area. The lens has a corresponding light-shielding area to match it at different focal lengths, ensuring that the light-shielding area can play a good stray light blocking effect at different focal lengths of the lens, thereby improving the shooting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is an exploded view of the camera module disclosed in the embodiment of this application; Figure 2 A cross-sectional view of a camera module disclosed in an embodiment of the present application; Figure 3 This is a schematic structural diagram of the light transmission adjustment mechanism disclosed in an embodiment of the present application; Figure 4 This is one of the structural schematic diagrams of the support disclosed in the embodiment of this application; Figure 5 This is the second structural diagram of the support disclosed in the embodiment of this application; Figure 6 This is one of the structural schematic diagrams of the first light shielding member disclosed in the embodiment of this application; Figure 7 This is the second structural schematic diagram of the first light-shielding member disclosed in the embodiment of this application.
[0009] Description of reference numerals: 110-lens, 111-lens body, 112-motor, 120-support, 121-light hole, 122-mounting slot, 123-first carrier, 124-second carrier, 125-first accommodating slot, 126-third accommodating slot, 127-fifth accommodating slot, 130-photosensitive element, 140-light adjustment mechanism, 140a-light guide hole, 141-first light shielding element, 1411-first plate, 1412-second plate, 142-second light shielding element, 143-first driving component, 1431-first coil, 1432-first magnetic element, 144-second driving component, 1441-second coil, 1442-second magnetic element, 145-second accommodating slot, 146-ball, 147-fourth accommodating slot, 148-first sensor, 149-second sensor, 150-filter. DETAILED DESCRIPTION
[0010] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0011] The terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequential sequence. It should be understood that the numerals used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.
[0012] The technical solutions disclosed in various embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0013] Currently, mainstream camera modules can achieve focusing by telescoping the lens. During the process of lens telescoping and zooming, the field of view of the camera module will also change accordingly, and the path and source area of stray light entering the lens from the outside will also change accordingly. Specifically, when the field of view of the camera module is adjusted to a larger angle, the lens "sees" a wider range. At this time, the angle range of light entering the lens is also larger, and the light will shine on the inner wall of the lens, support and other structures at a larger inclination angle, which is prone to stray reflected light (stray light), which in turn causes ghosting, light spots and other phenomena in the photos taken.
[0014] In the related art, in order to reduce the influence of stray light on the shooting effect, a filter is set between the photosensitive chip and the lens. The black light-shielding area is formed around the filter by silk-screening, and the area surrounded by the black light-shielding area is the light-transmitting area of the filter. Since stray light usually propagates along the edge area of the light hole inside the camera module, the black light-shielding area of the filter can provide a better stray light blocking effect under a specific field of view angle. However, during the zooming process of the lens, the field of view of the camera module will change, and the path and source area of the stray light will also change accordingly. This causes the propagation path of the stray light in the light hole inside the camera module to become complicated, and it may deviate from the edge area of the light hole. Since the black light-shielding area of the filter is fixed in size, the blocking effect of the filter is poor for this type of stray light that deviates from the black light-shielding area, which results in some stray light still being transmitted to the photosensitive chip, thereby causing adverse effects on the shooting effect.
[0015] Based on the above situation, please refer to Figures 1 to 7 The present application discloses a camera module. The disclosed camera module may include a lens 110, a support 120, a photosensitive element 130, and a light adjustment mechanism 140. The lens 110, support 120, and photosensitive element 130 are stacked in sequence along the optical axis of the camera module. The lens 110 is located at the front end of the camera module and is used to collect light to form a clear image and project it onto the photosensitive element 130. The photosensitive element 130 may be a CMOS (Complementary Metal Oxide Semiconductor) image sensor, a CCD (Charge Coupled Device) image sensor, or the like. The photosensitive element 130 may be integrated onto a circuit board. The support 120 is used to support and mount the lens 110. The side of the support 120 facing away from the lens 110 may be fixed to the circuit board. The lens 110 may include a movable lens group. By changing the position of these lens groups, the focal length of the lens 110 can be changed, thereby achieving focusing and zooming effects on objects at different distances. In order to allow external light to be transmitted from the lens 110 to the photosensitive member 130 , the support 120 is provided with a light hole 121 , and two opening ends of the light hole 121 are respectively arranged opposite to the lens 110 and the photosensitive member 130 .
[0016] External light is transmitted through lens 110 and light aperture 121 to photosensitive element 130. However, stray light can also travel along the edges of light aperture 121 and reach photosensitive element 130, impacting the image quality. This is particularly true when lens 110 is zoomed to a wide field of view, exacerbating the adverse effects of stray light. To address this issue, a light adjustment mechanism 140 can be provided on support 120. This mechanism includes a light guide hole 140a, which communicates with the aforementioned light aperture 121. The light-through adjustment mechanism 140 can be set on the side of the support 120 facing the lens 110. In this case, the light guide hole 140a is located above the light-through hole 121, that is, the light guide hole 140a is close to the opening end of the light-through hole 121 facing the lens 110; the light-through adjustment mechanism 140 can also be set on the side of the support 120 facing away from the lens 110. In this case, the light guide hole 140a is located below the light-through hole 121, that is, the light guide hole 140a is close to the opening end of the light-through hole 121 facing away from the lens 110.
[0017] The light transmission adjustment mechanism 140 can adjust the light transmission area of the light guide hole 140a to block or expose the edge area of the light passage hole 121, thereby achieving dynamic adjustment of the stray light blocking area. It is understandable that adjusting the light transmission area of the light guide hole 140a actually adjusts the light transmission area of the edge area of the light passage hole 121. When the edge area of the light passage hole 121 is exposed, the light transmission area of the edge area of the light passage hole 121 is larger and the light blocking effect is weaker. When the edge area of the light passage hole 121 is blocked, the light transmission area of the edge area of the light passage hole 121 is smaller and the light blocking effect is stronger.
[0018] When lens 110 is zoomed, light transmission adjustment mechanism 140 can adjust the light transmission area of light guide aperture 140a according to the focal length of lens 110 to achieve a suitable light-shielding effect, thereby minimizing stray light interference while ensuring normal shooting. The focal length of lens 110 and the light transmission area of light guide aperture 140a can have a corresponding relationship. This relationship can be determined through experimental measurement or calculated using a preset model. The embodiment of the present invention does not limit the method for obtaining this corresponding relationship.
[0019] The aforementioned light passage adjustment mechanism 140 can be made of an electrodeformable material, which forms the aforementioned light guide hole 140a. By adjusting the current applied to the electrodeformable material, the size of the light guide hole 140a can be adjusted, thereby changing the light passage area of the light guide hole 140a. Alternatively, the aforementioned light passage adjustment mechanism 140 can also adopt a variable aperture design. The light passage adjustment mechanism 140 is surrounded by a plurality of blades to form the light guide hole 140a. By controlling the rotation of the blades, the size of the light guide hole 140a can be adjusted, thereby changing the light passage area of the light guide hole 140a. In addition, other design schemes that can dynamically control the size change of the light guide hole 140a can also be adopted, as long as the light passage area of the light guide hole 140a can be adjusted to block or expose the edge area of the light passage hole 121. This embodiment of the present application is not limited to this.
[0020] From the above description, it can be seen that the camera module disclosed in the embodiment of the present application improves the relevant technology. During the zooming process of the lens 110, the light-through adjustment mechanism 140 can adjust the light-through area of the light guide hole 140a accordingly to block or expose the edge area of the light-through hole 121, thereby realizing dynamic adjustment of the shading area, so that the lens 110 has a corresponding shading area to match it at different focal lengths, ensuring that the shading area can play a good stray light blocking effect when the lens 110 is at different focal lengths, thereby improving the shooting effect.
[0021] In an optional embodiment of the present application, Figures 1 to 7 As shown, the light-through adjustment mechanism 140 may include a first light-shielding member 141 and a second light-shielding member 142. The first light-shielding member 141 and the second light-shielding member 142 may be made of metal materials. In order to avoid reflection on the surfaces of the first light-shielding member 141 and the second light-shielding member 142 and affect the shooting effect, an anti-reflection film may be coated on the surfaces of the first light-shielding member 141 and the second light-shielding member 142.
[0022] The first light-shielding member 141 and the second light-shielding member 142 form a light-guiding aperture 140a. The shape of the light-guiding aperture 140a can be square, circular, or the like, and can be specifically matched to the shape of the light-through hole 121. When a circular light-guiding aperture 140a is used, the first light-shielding member 141 and the second light-shielding member 142 each have an arcuate side, which, when joined together, form the circular light-guiding aperture 140a. When a square light-guiding aperture 140a is used, the first light-shielding member 141 and the second light-shielding member 142 each have a curved side, which, when joined together, form the square light-guiding aperture 140a.
[0023] The first and second light shielding members 141, 142 are respectively slidably connected to the support 120. When the first and second light shielding members 141, 142 are separated from each other, the light-transmitting area of the light guide hole 140a increases, thereby exposing the edge area of the light guide hole 121. In this case, the light-blocking effect is weaker. When the first and second light shielding members 141, 142 are close to each other, the light-transmitting area of the light guide hole 140a decreases, thereby blocking the edge area of the light guide hole 121. In this case, the light-blocking effect is stronger. Based on the correspondence between the focal length of the lens 110 and the light-transmitting area of the light guide hole 140a, the first and second light shielding members 141, 142 can be controlled to slide to appropriate positions to obtain the appropriate light-blocking effect. The first and second light shielding members 141, 142 can be connected to the support 120 via slide rails or linear bearings.
[0024] like Figures 1 to 4 As shown, considering that the support 120 also needs to support and mount the lens 110, to avoid interference between the lens 110 and the light adjustment mechanism 140, a mounting groove 122 can be defined on the side of the support 120 facing the lens 110. The open end of the light hole 121, which is adjacent to the lens 110, is located at the bottom of the mounting groove 122. The mounting groove 122 provides mounting space for a first light shielding member 141 and a second light shielding member 142. Both the first light shielding member 141 and the second light shielding member 142 are disposed within the mounting groove 122 and are slidably connected to the bottom of the mounting groove 122.
[0025] like Figures 1 to 3 As shown, to prevent interference between the first and second light shielding members 141, 142 during relative motion, a raised first platform 123, 124, can be provided at the bottom of the mounting slot 122. The first and second platforms 123, 124 are located on either side of the light aperture 121, respectively. The first platform 123 is higher than the second platform 124 in the direction from the bottom of the mounting slot 122 to the slot opening. The first light shielding member 141 is slidably connected to the first platform 123, and the second light shielding member 142 is slidably connected to the second platform 124. Due to the height difference between the first and second platforms 123, 124, the first and second light shielding members 141, 142 can be staggered from the bottom of the mounting slot 122 to the slot opening. This staggered arrangement prevents friction and collision between the first and second light shielding members 141, 142 when they approach each other.
[0026] In an optional embodiment of the present application, the light guide hole 140a and the light through hole 121 can both be square in shape. The first light shielding member 141 and the second light shielding member 142 can have the same structure and both include a first plate 1411 and a second plate 1412. The second plate 1412 extends from the end of the first plate 1411 at a predetermined angle. The predetermined angle can range from 85° to 95°, specifically 85°, 88°, 90°, 91°, 93°, 95°, etc. The first plate 1411 and the second plate 1412 can be a one-piece structure, or they can be manufactured separately and then assembled together by welding, bolting, etc.
[0027] The inner curved sides of the first light shielding member 141 and the second light shielding member 142 are arranged opposite each other, thereby forming the aforementioned light guide hole 140a. When the first light shielding member 141 and the second light shielding member 142 are separated from each other, the inner curved sides of the first light shielding member 141 and the second light shielding member 142 are also separated from each other, thereby increasing the light transmission area of the light guide hole 140a. When the first light shielding member 141 and the second light shielding member 142 are moved closer to each other, the inner curved sides of the first light shielding member 141 and the second light shielding member 142 are also moved closer to each other, thereby decreasing the light transmission area of the light guide hole 140a.
[0028] In conjunction with the above, to achieve relative movement between the first light shielding member 141 and the second light shielding member 142, the light passage adjustment mechanism 140 further includes a first drive assembly 143 and a second drive assembly 144. The first drive assembly 143 is disposed between the first carrier 123 and the first light shielding member 141 and is capable of driving the first light shielding member 141 to slide relative to the first carrier 123. The second drive assembly 144 is disposed between the second carrier 124 and the second light shielding member 142 and is capable of driving the second light shielding member 142 to slide relative to the second carrier 124. The first drive assembly 143 and the second drive assembly 144 can have the same structure. For example, a combination of a motor and a lead screw nut can be used to drive the first light shielding member 141 and the second light shielding member 142, respectively.
[0029] In an optional embodiment of the present application, the first light shielding member 141 and the second light shielding member 142 can be driven by magnetic force. Specifically, the first driving assembly 143 can include a first coil 1431 and a first magnetic member 1432. The surface of the first carrier 123 facing the first light shielding member 141 is provided with a first receiving groove 125, and the first coil 1431 can be disposed in the first receiving groove 125. The surface of the first light shielding member 141 facing the first carrier 123 is provided with a second receiving groove 145, and the first magnetic member 1432 can be disposed in the second receiving groove 145. When the first coil 1431 is energized, the first coil 1431 and the first magnetic member 1432 generate relative motion under the action of the Lorentz force, thereby driving the first light shielding member 141 to slide relative to the first carrier 123.
[0030] Similarly, the second driving assembly 144 may include a second coil 1441 and a second magnetic member 1442. A first receiving groove 125 is defined on the surface of the second carrier 124 facing the second light shielding member 142. The second coil 1441 may be disposed in the first receiving groove 125. A second receiving groove 145 is defined on the surface of the second light shielding member 142 facing the second carrier 124. The second magnetic member 1442 may be disposed in the second receiving groove 145. When the second coil 1441 is energized, the second coil 1441 and the second magnetic member 1442 generate relative motion under the action of the Lorentz force, thereby driving the second light shielding member 142 to slide relative to the second carrier 124.
[0031] The above-mentioned magnetic drive method has a simple structure and does not need to occupy much internal space of the camera module, which is conducive to reducing the volume of the camera module.
[0032] To ensure smooth sliding of the first light shielding member 141 and the second light shielding member 142, the light passage adjustment mechanism 140 may further include a first guide assembly and a second guide assembly. The first guide assembly is disposed between the first carrier 123 and the first light shielding member 141 and is used to guide and support the first light shielding member 141. The second guide assembly is disposed between the second carrier 124 and the second light shielding member 142 and is used to guide and support the second light shielding member 142. The first guide assembly and the second guide assembly may have the same structure. For example, linear bearings, slide rails, or other components may be used as the guide assemblies.
[0033] In an optional embodiment of the present application, both the first guide assembly and the second guide assembly may include a plurality of balls 146. Taking the first guide assembly as an example, a third receiving groove 126 is defined on the surface of the first platform 123 facing the first light shielding member 141, and a fourth receiving groove 147 is defined on the surface of the first light shielding member 141 facing the first platform 123. The balls 146 may be correspondingly disposed within the movable space formed by the third receiving groove 126 and the fourth receiving groove 147. The surfaces of the balls 146 contact the third receiving groove 126 and the fourth receiving groove 147, respectively. When the first light shielding member 141 moves relative to the first platform 123, the cooperation of the balls 146, the third receiving groove 126, and the fourth receiving groove 147 can provide stable support and guidance for the first light shielding member 141, enabling the first light shielding member 141 to slide stably along a predetermined direction.
[0034] Taking the second guide assembly as an example, a third receiving groove 126 is defined on the surface of the second platform 124 facing the second light shielding member 142, and a fourth receiving groove 147 is defined on the surface of the second light shielding member 142 facing the second platform 124. A ball bearing 146 is positioned within the movable space formed by the third and fourth receiving grooves 126, 147. The surfaces of the ball bearing 146 contact the third and fourth receiving grooves 126, 147, respectively. As the second light shielding member 142 moves relative to the second platform 124, the interaction of the ball bearing 146, the third and fourth receiving grooves 126, 147 provides stable support and guidance for the second light shielding member 142, enabling it to slide stably in a predetermined direction. This ball bearing 146-guided approach offers a simple structure, eliminates the need for occupying significant internal space within the camera module, and contributes to a reduced camera module size.
[0035] To precisely control the positions of the first light shielding member 141 and the second light shielding member 142 to ensure a good match between the light transmission area of the light guide hole 140a and the focal length of the lens 110, the light transmission adjustment mechanism 140 may further include a first sensor 148 and a second sensor 149. The first sensor 148 and the second sensor 149 may be Hall effect sensors, infrared sensors, or the like. To facilitate sensor installation, a fifth receiving slot 127 is defined on the surface of the first carrier 123 facing the first light shielding member 141. The first sensor 148 may be disposed in this fifth receiving slot 127 and may obtain positional information about the first light shielding member 141. Correspondingly, a fifth receiving slot 127 is also defined on the surface of the second carrier 124 facing the second light shielding member 142. The second sensor 149 may be disposed in this fifth receiving slot 127 and may obtain positional information about the second light shielding member 142.
[0036] The first light shielding member 141 and the second light shielding member 142 can be moved to different positions to correspond to different light-passing areas of the light guide hole 140a. Taking the Hall effect sensor as an example, the first sensor 148 can record the position of the first light shielding member 141 through magnetic induction. The magnetic induction amount obtained by the first sensor 148 corresponds to the position of the first light shielding member 141. Similarly, the second sensor 149 can record the position of the second light shielding member 142 through magnetic induction. The magnetic induction amount obtained by the second sensor 149 corresponds to the position of the second light shielding member 142. In practice, the first light shielding member 141 and the second light shielding member 142 typically move synchronously. Therefore, the positions of the first light shielding member 141 and the second light shielding member 142 can be correlated with the light-passing area of the light guide hole 140a. Therefore, the magnetic induction amounts obtained by the first sensor 148 and the second sensor 149 also correspond to the light-passing area of the light guide hole 140a. According to the corresponding relationship between the light-transmitting area of the light-guiding hole 140 a and the focal length of the lens 110 , the first driving component 143 and the second driving component 144 can be controlled to execute corresponding driving instructions.
[0037] It should be noted that since the first light shielding member 141 is provided with the first magnetic member 1432, and when the first light shielding member 141 moves relative to the first sensor 148, the position of the first magnetic member 1432 also changes accordingly, the magnetic induction amount obtained by the first sensor 148 also changes dynamically, thereby recording the position of the first light shielding member 141 through the magnetic induction amount. The position detection logic of the second sensor 149 is the same as that of the first sensor 148 and is not further described in this application.
[0038] In an optional embodiment of the present application, the camera module may further include a filter 150. The light-through adjustment mechanism 140 may be provided on the side of the support 120 facing the lens 110, and the filter 150 may be provided on the side of the support 120 facing away from the lens 110, with the filter 150 covering the light-through hole 121. The provision of the filter 150 can, on the one hand, improve the photographic effect, and on the other hand, the black light-shielding area around the filter 150 can be utilized in conjunction with the light-through adjustment mechanism 140 to further block stray light, thereby further preventing stray light from adversely affecting the photographic effect.
[0039] Please refer to Figure 1 and Figure 2 The above-mentioned lens 110 may include a lens body 111 and a motor 112. The motor 112 is arranged on the support 120. A mounting hole is provided inside the motor 112. The mounting hole is communicated with the light guide hole 140a and the light through hole 121. The lens body 111 can be set in the mounting hole. The motor 112 can drive the lens body 111 to move along the optical axis to achieve zooming.
[0040] The present application also discloses an electronic device, which may be a mobile phone, tablet computer, e-book reader, game console, wearable device, etc. The present application is not limited to the specific type of electronic device. The electronic device includes a device housing and the camera module described above, which is mounted on the device housing.
[0041] As can be seen from the above description, the camera module disclosed in the embodiment of the present application improves the relevant technology. The disclosed camera module includes a lens 110, a support 120, a photosensitive element 130, and a light-through adjustment mechanism 140 stacked in sequence along the optical axis. The support 120 is provided with a light-through hole 121. The light-through adjustment mechanism 140 is provided on the support 120. The adjustment mechanism has a light-guiding hole 140a, and the light-guiding hole 140a is connected to the light-through hole 121. During the zooming process of the lens 110, the light-through adjustment mechanism 140 can adjust the light-through area of the light-guiding hole 140a accordingly to block or expose the edge area of the light-through hole 121, thereby realizing dynamic adjustment of the light-shielding area, so that the lens 110 has a corresponding light-shielding area to match it at different focal lengths, ensuring that the light-shielding area can play a good stray light shielding effect at different focal lengths of the lens 110, thereby improving the shooting effect.
[0042] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different technical features between the various embodiments are not contradictory, they can be combined to form more specific embodiments. Considering the simplicity of the text, they will not be repeated here.
[0043] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.
Claims
1. A camera module, characterized in that: It includes a lens, a support, a photosensitive element and a light adjustment mechanism; The lens, the support and the photosensitive element are stacked in sequence along the optical axis direction of the camera module, the support is provided with a light-through hole, and the two open ends of the light-through hole are respectively arranged opposite to the lens and the photosensitive element; The light-through adjustment mechanism is provided on the support and has a light-guiding hole, which is communicated with the light-through hole. The light-through adjustment mechanism is configured to cover or expose the edge area of the light-through hole by adjusting the light-through area of the light-guiding hole.
2. The camera module according to claim 1, wherein: The light passage adjustment mechanism includes a first light shielding member and a second light shielding member, wherein the first light shielding member and the second light shielding member form the light guide hole, and the first light shielding member and the second light shielding member are respectively slidably connected to the support; When the first light shielding member and the second light shielding member are away from each other, the light passing area of the light guide hole is increased to expose the edge area of the light guide hole; When the first light shielding member and the second light shielding member are close to each other, the light passing area of the light guide hole is reduced to shield the edge area of the light guide hole.
3. The camera module according to claim 2, wherein: A mounting groove is provided on the side of the support facing the lens, and the opening end of the light-through hole close to the lens is located at the bottom of the mounting groove. The first light-shielding member and the second light-shielding member are both arranged in the mounting groove and are respectively slidably connected to the bottom of the mounting groove.
4. The camera module according to claim 3, wherein: The bottom of the mounting groove is provided with a raised first platform and a second platform, the first platform and the second platform are respectively located on both sides of the light hole, and the first platform is higher than the second platform in the direction from the bottom of the mounting groove to the groove opening; The first light shielding member is slidably connected to the first carrier, the second light shielding member is slidably connected to the second carrier, and the first light shielding member and the second light shielding member are staggered in a direction from the bottom of the installation slot to the slot opening.
5. The camera module according to claim 4, wherein: The first light shielding member and the second light shielding member have the same structure and both include a first plate and a second plate, wherein the second plate is bent and extended at a preset angle from the end of the first plate; The inner side of the first light shielding member and the inner side of the second light shielding member are arranged opposite to each other and form the light guide hole.
6. The camera module according to claim 4, wherein: The light transmission adjustment mechanism further includes a first drive assembly and a second drive assembly; The first driving assembly is provided between the first carrier and the first light shielding member, and is used to drive the first light shielding member to slide relative to the first carrier; The second driving assembly is disposed between the second carrier and the second light shielding member, and is used for driving the second light shielding member to slide relative to the second carrier.
7. The camera module according to claim 6, wherein: The first driving assembly includes a first coil and a first magnetic member, and the second driving assembly includes a second coil and a second magnetic member; A first receiving groove is respectively formed on a surface of the first carrier facing the first light shielding member and a surface of the second carrier facing the second light shielding member, and the first coil and the second coil are respectively disposed in the corresponding first receiving grooves; a second receiving groove is respectively formed on a surface of the first light shielding member facing the first carrier and a surface of the second light shielding member facing the second carrier, and the first magnetic member and the second magnetic member are respectively disposed in the corresponding second receiving grooves; The first driving component is configured to drive the first magnetic member and the first light shielding member to slide relative to the first carrier when the first coil is energized; The second driving component is configured to drive the second magnetic member and the second light shielding member to slide relative to the second carrier when the second coil is energized.
8. The camera module according to claim 7, wherein: The light transmission adjustment mechanism further includes a first guide assembly and a second guide assembly; The first guide assembly is provided between the first carrier and the first light shielding member, and is used for guiding and supporting the first light shielding member; The second guiding assembly is arranged between the second carrier and the second light shielding member, and is used for guiding and supporting the second light shielding member.
9. The camera module according to claim 8, wherein: The first guide assembly and the second guide assembly each include a plurality of balls; A third receiving groove is respectively provided on the surface of the first carrier facing the first light-shielding member and a surface of the second carrier facing the second light-shielding member, and a fourth receiving groove is respectively provided on the surface of the first light-shielding member facing the first carrier and a surface of the second light-shielding member facing the second carrier, and the ball is correspondingly arranged in the movable space formed by the third receiving groove and the fourth receiving groove.
10. The camera module according to claim 4, wherein: The light transmission adjustment mechanism further includes a first sensor and a second sensor; A fifth receiving groove is respectively provided on the surface of the first carrier facing the first light-shielding member and the surface of the second carrier facing the second light-shielding member. The first sensor and the second sensor are respectively arranged in the corresponding fifth receiving grooves. The first sensor is used to obtain the position information of the first light-shielding member, and the second sensor is used to obtain the position information of the second light-shielding member.
11. The camera module according to claim 1, wherein: The camera module further includes a filter. The light passage adjustment mechanism is provided on a side of the support facing the lens. The filter is provided on a side of the support facing away from the lens and covers the light passage hole.
12. The camera module according to claim 1, wherein: The lens includes a lens body and a motor. The motor is arranged on the support. The lens body is connected to the motor. The motor is used to drive the lens body to move along the optical axis.
13. An electronic device, characterized in that: It comprises a device housing and the camera module according to any one of claims 1 to 12, wherein the camera module is installed in the device housing.