CN113204154B - Diaphragm device, camera module and electronic equipment - Google Patents

Abstract

The application discloses a diaphragm device, a camera module and electronic equipment, which belong to the technical field of optical equipment. The diaphragm device is used to adjust the light passing amount of the light passing channel. The aperture device includes a casing, a flexible light shielding member and a first driving member, the casing has a light-passing channel, and the first driving member and the flexible light-shielding member are arranged on the casing; The light channels are opposite to each other; the first driving member drives the flexible light-shielding member to switch between the first state and the second state; when the flexible light-shielding member is in the first state, the flexible light-shielding member at least partially blocks the light passage, and the flexible light-shielding member The aperture of the light-transmitting hole is the first aperture; when the flexible light-shielding member is in the second state, the aperture of the light-passing hole of the flexible light-shielding member is the second aperture, and the second aperture is larger than the first aperture. The solution can solve the problem of complex structure of the diaphragm device.

Description

Aperture devices, camera modules and electronic equipment

technical field

The application belongs to the technical field of optical equipment, and specifically relates to a diaphragm device, a camera module and an electronic device.

Background technique

The main function of the diaphragm device is to adjust the amount of light received by the image sensor. Specifically, when the light-passing through hole in the diaphragm device is increased, the amount of light entering the camera is increased, and the light-transmitting hole in the diaphragm device is decreased, so the light amount entering the camera is less. In a traditional diaphragm device, a plurality of blades are assembled to form an aperture through hole, and the size of the aperture through hole is adjusted by adjusting the position of each blade.

The structure of the traditional aperture device is complicated. In the case of a tiny camera, the size of the blade structure is small, which makes it difficult to mass-produce and assemble. In addition, the roundness of the aperture through hole is difficult to quality control, and the amount of light received by the image sensor cannot be accurately adjusted.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a diaphragm device, a camera module and an electronic device, which can solve the problem of the complex structure of the diaphragm device.

In order to solve the above technical problems, this application is implemented as follows:

The application discloses a diaphragm device, which includes a casing, a flexible light shielding member and a first driving member, the casing has a light-passing channel, the first driving member and the flexible light-shielding member are arranged on the casing; the flexible light-shielding member has a light-passing hole, and the light-passing hole is opposite to the light-passing channel; the first driving member drives the flexible light-shielding member to switch between the first state and the second state; when the flexible light-shielding member is in the first state, the flexible light-shielding member at least partially blocks the light passing channel, and the aperture of the light-through hole of the flexible light-shielding member is the first aperture; when the flexible light-shielding member is in the second state, the aperture of the light-passing hole of the flexible light-shielding member is the second aperture, and the second aperture is larger than the first aperture .

The present application also discloses a camera module including the aperture device described above.

The present application also discloses an electronic device, including the camera module described above.

The technical scheme adopted in the present invention can achieve the following beneficial effects:

In the aperture device disclosed in the embodiment of the present invention, the first driving member drives the flexible light shielding member to deform, so that the aperture of the light-transmitting hole in the flexible light-shielding member increases or decreases, thereby achieving the purpose of adjusting the amount of light passing through the light-transmitting channel. The aperture device does not need to set a plurality of blades to assemble the aperture through hole, which not only simplifies the aperture device, reduces the space occupied by the aperture device, but also reduces the assembly difficulty of the aperture device, and is suitable for mass production.

Description of drawings

1 is a cross-sectional view of a camera module disclosed in a first embodiment of the present invention in a second state;

2 is a cross-sectional view of the camera module disclosed in the first embodiment of the present invention in a first state;

3 is a cross-sectional view of the camera module disclosed in the second embodiment of the present invention in a second state;

4 is a cross-sectional view of the camera module disclosed in the second embodiment of the present invention in a first state;

5 is a cross-sectional view of the camera module disclosed in the second embodiment of the present invention in a second state;

6 is a cross-sectional view of the camera module disclosed in the second embodiment of the present invention in a first state;

7 is a right side view of a camera module disclosed in an embodiment of the present invention in a second state;

8 is a right side view of a camera module disclosed in an embodiment of the present invention in a first state;

FIG. 9 is a right side view of a diaphragm device disclosed in an embodiment of the present invention in a first state;

FIG. 10 is a right side view of a diaphragm device disclosed in an embodiment of the present invention in a second state.

In the figure: 100-shell; 200-flexible shading member; 210-first segment; 220-second segment; 300-first driving member; 310-driving coil; 320-magnetic member; 400-support member; 410- Guide surface; 500-second driving part; 600-support part; 610-slip layer.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between "first", "second", etc. The objects are usually of one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

The aperture device, the camera module, and the electronic equipment provided by the embodiments of the present application will be described in detail below with reference to FIGS. 1 to 10 , through specific embodiments and application scenarios.

Referring to FIGS. 1 to 6 , the aperture device disclosed in the embodiment of the present invention includes a housing 100 , a flexible light shielding member 200 and a first driving member 300 . The housing 100 is a basic structural member, and provides a mounting base for the flexible light shielding member 200 and/or the first driving member 300 .

Referring to FIGS. 1 to 10 , the housing 100 may have a light passage. The first driving member 300 and the flexible light shielding member 200 may be disposed on the housing 100 . Referring to FIG. 2 and FIG. 4 , the flexible light shielding member 200 may have a light-passing hole, and the light-passing hole may be opposite to the light-passing channel. Optionally, the light-passing hole can be set as a circular hole to ensure the roundness of the light-passing hole. Specifically, the flexible light shielding member 200 may be arranged in a ring shape or a cylindrical shape. Of course, the light-transmitting holes can also be set to other shapes as required, such as regular polygons, ellipses, hearts, and the like. This embodiment does not limit the specific shape of the light-transmitting hole. Further, the cross-sectional shape of the light-passing channel is the same as that of the light-passing hole. Optionally, the light-passing channel may be set in a cylindrical shape, and the light-passing channel may be arranged coaxially with the light-passing hole, so as to improve the compactness of the structure of the aperture device.

The first driving member 300 may drive the flexible light shielding member 200 to switch between the first state and the second state. When the flexible light shielding member 200 is in the first state, the flexible light shielding member 200 at least partially shields the light passage, and the aperture of the light passage hole of the flexible light shielding member 200 is the first aperture. When the flexible light-shielding member 200 is in the second state, the aperture of the light-transmitting hole of the flexible light-shielding member 200 is the second aperture, and the second aperture is larger than the first aperture. The first driving member 300 can deform the flexible light shielding member 200 by acting on the flexible light shielding member 200 . Specifically, the flexible light shielding member 200 can be switched between the first state and the second state to adjust the amount of light passing through the light passing channel. During the process of switching the flexible light-shielding member 200 from the first state to the second state, the first driving member 300 acts on the flexible light-shielding member 200, so that the aperture of the light-transmitting hole of the flexible light-shielding member 200 gradually increases, and the shielded part of the light-passing channel The area gradually decreases, thereby increasing the amount of light passing through the light channel. In the process of switching the flexible light-shielding member 200 from the second state to the first state, the first driving member 300 acts on the flexible light-shielding member 200, so that the aperture of the light-passing hole of the flexible light-shielding member 200 is gradually reduced, and the light-passing channel is blocked. The area of the part gradually increases, thereby reducing the amount of light passing through the light channel.

Compared with the traditional diaphragm device, the diaphragm device described in the above embodiments has a simpler structure, which can not only reduce the volume of the diaphragm device, but also reduce the manufacturing difficulty and manufacturing cost of the diaphragm device. The first driving member 300 drives the flexible shading member 200 to deform, which may be, but not limited to, the first driving member 300 and the flexible shading member 200 are squeezed or pulled with each other to cause the flexible shading member 200 to be deformed by force. Specifically, the deformation amount of the flexible light-shielding member 200 can be adjusted by controlling the magnitude of the force acting on the flexible light-shielding member 200 by the first driving member 300 , or by pulling the moving distance of the flexible light-shielding member 200 , thereby adjusting the deformation of the flexible light-shielding member 200 . The size of the light-passing hole is such that the aperture of the light-passing hole can be continuously changed under the action of the first driving member 300 . Since the aperture of the light-passing hole can be continuously changed, the stepless adjustment of the aperture of the light-passing hole can be realized within the deformation range of the flexible light shielding member 200 . In addition, in the process of adjusting the size of the light-transmitting hole in the diaphragm device described in the above-mentioned embodiments, the circularity of the light-passing hole can remain unchanged, thereby avoiding the adjustment of the aperture size of the light-passing hole by the circularity of the light-passing hole. scope limit. It should be noted that, in the aperture device in which the light-passing multi-blade is enclosed to form the light-passing hole, the larger the aperture of the light-passing hole is, the worse the circularity of the light-passing hole is, so that the adjustment range of the aperture size of the light-passing hole is limited. limit.

The connecting portion of the first driving member 300 and the flexible shading member 200 can be annular, and the connecting portion of the first driving member 300 and the flexible shading member 200 is arranged concentrically with the light-passing hole, so as to further improve the uniformity of the force around the light-passing hole. In order to improve the consistency of the deformation around the light-passing hole, the roundness of the light-passing hole can be further improved in the process of changing the aperture of the light-passing hole.

The flexible light shielding member 200 can be made of an elastomer material, so that the flexible light shielding member 200 can recover and deform under the action of its own elastic force, that is, when the force acting on the flexible light shielding member 200 by the first driving member 300 is reduced or disappeared. Under certain circumstances, the flexible light shielding member 200 can recover its deformation under the action of its own elastic force, thereby ensuring that the flexible light shielding member 200 can still restore the shape of the initial state after repeated deformation, and the consistency of the shape of the light-passing hole can be ensured.

The flexible shade 200 may be made of an elastomeric material. There are many types of elastomeric materials, such as: polyester elastomeric materials, propylene-based elastomeric materials, vinyl elastomeric materials, fluorine/silicon elastomeric materials, and the like. Therefore, the present application does not limit the specific material of the flexible light shielding member 200 .

1 and 2 , when the flexible light shielding member 200 is not affected by external force, that is, the flexible light shielding member 200 is in a natural state, the aperture of the light-transmitting hole of the flexible light shielding member 200 may be smaller than or equal to the first aperture. The first driving member 300 acts on the flexible light shielding member 200, so that the aperture of the flexible light shielding member 200 is increased, so that the amount of light passing through the light passage channel is increased. When the force of the first driving member 300 acting on the flexible light shielding member 200 decreases or disappears, the flexible light shielding member 200 can recover its deformation under the action of its own elastic force, and the aperture of the light-passing hole of the flexible light shielding member 200 is reduced. , thereby reducing the amount of light passing through the light passage.

9 and 10 , when the flexible light shielding member 200 is not affected by external force, that is, the flexible light shielding member 200 is in a natural state, the aperture of the light-transmitting hole of the flexible light shielding member 200 is greater than or equal to the second aperture. The first driving member 300 reduces the aperture of the light-passing hole in the flexible light-shielding member 200 by acting on the flexible light-shielding member 200, so that the light-passing amount of the light-passing channel is reduced. When the force of the first driving member 300 acting on the flexible light-shielding member 200 is reduced or disappears, the flexible light-shielding member 200 can recover its deformation under the action of its own elastic force, and the aperture of the light-transmitting hole of the flexible light-shielding member 200 decreases. is small, thereby reducing the amount of light passing through the light channel.

Certainly, under the condition that the flexible light shielding member 200 is not affected by external force, the aperture of the light-transmitting hole of the flexible light shielding member 200 may also be located between the first aperture and the second aperture. Specifically, the first driving member 300 can drive the aperture of the flexible light shielding member 200 to increase or decrease. Therefore, the embodiment of the present application does not limit the specific size of the aperture of the light-passing hole of the flexible light-shielding member 200 under the condition that the flexible light-shielding member 200 is not affected by external force.

Referring to FIGS. 1 to 8 , the aperture device may further include a supporter 400 . The support member 400 may be disposed in the light passage, an annular accommodating cavity is formed between the support member 400 and the housing 100 , and the diameter of the support member 400 is larger than the diameter of the light passage hole. During the process of switching the flexible light shielding member 200 from the first state to the second state, the flexible light shielding member 200 shrinks into the annular accommodating cavity along the support member 400 . During the process of switching the flexible light shielding member 200 from the second state to the first state, the flexible light shielding member 200 at least partially protrudes from the annular accommodating cavity along the support member 400 . Optionally, the support member 400 may be provided with through holes, so that light can pass through the through holes of the support member 400 . The diameter of the support member 400 is larger than the diameter of the light-passing hole, and in the process that the first driving member 300 drives the flexible light-shielding member 200 to shrink into the annular accommodating cavity, the flexible light-shielding member 200 and the supporting member 400 squeeze each other, thereby making the flexible light-shielding member 200 squeeze each other. The aperture of the clear hole of the member 200 is increased. During the process that the first driving member 300 drives the flexible light shielding member 200 to extend out of the annular accommodation, the flexible light shielding member 200 can recover and deform under the action of its own elastic force, thereby reducing the aperture of the light-transmitting hole.

In an optional embodiment, the flexible light shielding member 200 may be annular. Specifically, the outer ring edge of the flexible shading member 200 is connected to the first driving member 300 , so that the flexible shading member 200 is driven to move relative to the supporting member 400 by the first driving member 300 , so that the supporting member 400 and the flexible shading member 200 are relatively squeezed. pressure, so that the flexible light shielding member 200 is deformed. Referring to FIGS. 1 and 2 , the flexible light shielding member 200 is located at one end of the supporting member 400 . Under the action of the first driving member 300 , the flexible light-shielding member 200 shrinks into the annular receiving cavity, so that the flexible light-shielding member 200 and the support member 400 are pressed against each other, so that the aperture of the light-passing hole of the flexible light-shielding member 200 becomes larger.

In an optional embodiment, the flexible light shielding member 200 may be annular, and the outer ring edge of the flexible light shielding member 200 may be fixedly connected to the housing 100 . The supporting member 400 is slidably matched with the flexible shading member 200, and the first driving member 300 is connected with the supporting member 400, so that the first driving member 300 can drive the supporting member 400 to move relative to the flexible shading member 200, so that the flexible shading member 200 can move toward the annular The accommodating cavity shrinks or extends outside the annular accommodating cavity, so that the flexible light shielding member 200 can be deformed under the extrusion of the supporting member 400, so as to realize the adjustment of the aperture size of the light-passing hole.

The flexible light shielding member 200 may be cylindrical. Specifically, the flexible light shielding member 200 can be at least partially sleeved on the first end of the support member 400, so that the flexible light shielding member 200 can be driven to move relative to the supporting member 400 by the first driving member 300, so that the flexible light shielding member 200 can move toward the annular accommodating cavity It shrinks inward or extends out of the annular receiving cavity. Specifically, in the process of shrinking the flexible light shielding member 200 into the annular accommodating cavity, the length of the flexible light shielding member 200 beyond the first end of the support member 400 gradually decreases, and the aperture of the light-passing hole of the flexible light shielding member 200 is in the support member 400. Increase under the action of 400. During the process of extending the flexible light shielding member 200 to the outside of the annular accommodating cavity, the length of the flexible light shielding member 200 beyond the first end of the support member 400 is gradually increased. The support of the support member 400 and the portion of the flexible light shielding member 200 beyond the first end of the support member 400 will recover and deform under the action of its own elastic force, thereby reducing the aperture of the light-transmitting hole. In this solution, the flexible shade 200 is sleeved on the support 400 and/or wraps the end of the support 400 , so that the flexible shade 200 can also protect the support 400 when the support 400 collides with the outside.

In the above embodiment, the flexible shading member 200 can be slidably matched with the casing 100 and/or the supporting member 400, the supporting member 400 is fixedly arranged relative to the casing 100, and the first driving member 300 can be connected with the flexible shading member 200 to pass the first driving member 300. The driving member 300 drives the flexible shading member 200 to slide along the supporting member 400 to realize the flexible shading member 200 to shrink into the annular accommodating cavity or extend to the outside of the annular accommodating cavity. Alternatively, the flexible light shielding member 200 may be fixedly disposed relative to the housing 100 , and the flexible light shielding member 200 and the support member 400 may be slidably disposed. The first driving member 300 is connected with the supporting member 400, and then the flexible light shielding member 200 can be moved relative to the supporting member 400 by driving the supporting member 400 to move by the first driving member 300, thereby causing the flexible light shielding member 200 to shrink into the annular accommodating cavity or to the annular The accommodating cavity extends outside.

In an optional embodiment, the support member 400 may be an annular bracket disposed in the light passage, and the flexible light shield member 200 is deformed by the extrusion between the support member 400 and the flexible light shield member 200 . The support member 400 can be coaxially disposed with the light-passing hole of the flexible light shielding member 200, so that the deformation around the light-passing hole is consistent, and the roundness of the light-passing hole can be further improved when the aperture of the light-passing hole is increased.

It should be noted that the diaphragm device described in the embodiments of the present invention is mainly used to adjust the light passing amount of the light passing channel in the optical device. In the case where the aperture device described in the present application is used in an optical device, a component in the optical device can be used as the support 400 . Referring to FIG. 1 to FIG. 6 , when the aperture device is used in the camera module, the lens in the camera module can be used as the support member 400 . Specifically, the lens may be arranged in the light passage, an annular accommodating cavity may be arranged between the lens and the housing 100, and the diameter of the lens is larger than the diameter of the light passage. During the process of switching the flexible light-shielding member 200 from the first state to the second state, the flexible light-shielding member 200 shrinks into the annular accommodating cavity along the lens. During the process of switching the flexible light shielding member 200 from the second state to the first state, the flexible light shielding member 200 extends out of the annular accommodating cavity along the lens. In this solution, the lens can not only be used for imaging, but also can be used to support the flexible light shielding member 200, which can further reduce the volume of the camera module. In addition, the flexible light shielding member 200 can also be sleeved or wrapped around the end of the lens to achieve the purpose of protecting the lens.

Referring to FIGS. 3 to 6 , the flexible shade 200 may include a first segment 210 and a second segment 220 . The first end of the first segment 210 may be connected to the housing 100 or the support 400 . The second end of the first section 210 may be connected to the first end of the second section 220 , and the second section 220 may be folded relative to the first section 210 . The second end of the second segment 220 is slidably matched with the housing 100 , and the first driving member 300 can drive the second end of the second segment 220 to move along the housing 100 .

3 , the second segment 220 may be folded relative to the first segment 210 such that the inner wall of the second segment 220 is connected to the outer wall of the first segment 210 , and the outer wall of the second segment 220 is connected to the inner wall of the first segment 210 . The first driving member 300 can drive the second end of the second segment 220 to move along the housing 100 . The casing 100 moves out of the annular accommodating space.

In the above-mentioned embodiment, in the process that the first driving member 300 drives the second end of the second segment 220 to move out of the annular accommodation space, the length of the flexible light shielding member 200 extending out of the annular accommodation space gradually increases, and the flexible shielding member 200 is formed. The aperture of the clear hole is gradually reduced. When the first driving member 300 drives the second end of the second segment 220 to move into the annular accommodating space, the length of the flexible shading member 200 extending out of the annular accommodating space gradually decreases, so that the light through hole formed by the flexible shading member 200 gradually decreases. The pore size gradually increases. In this solution, the resistance received by the flexible light-shielding member 200 during the process of extending to the outside of the annular accommodating space or shrinking into the annular accommodating space can be reduced, and the folded portion of the flexible light-shielding member 200 is used to form a clear aperture, Wrinkles on the flexible light shielding member 200 at the clear aperture can be avoided, and the circularity of the aperture of the clear aperture can be improved. It should be noted that the folded portion of the flexible light shielding member 200 is the connection between the first segment 210 and the second segment 220 .

In an optional embodiment, the second end of the second segment 220 may be provided with an annular lip portion, and the second segment 220 may be slidably fitted with the housing 100 through the annular lip portion. The annular lip portion may be made of a hard material such that the annular lip portion may support the second end of the second segment 220 to maintain the annular shape. Optionally, the inner diameter of the annular lip portion may be larger than the outer diameter of the first section 210 sleeved on the support member 400 , that is, there is a gap between the second section 220 and the first section 210 after being folded, so as to avoid the second section 220 . The segment 220 and the first segment 210 rub against each other to reduce the resistance of the flexible light shielding member 200 during the deformation process, improve the consistency of the deformation around the light-passing hole, and help the flexible light-shielding piece 200 to maintain the circular shape of the light-passing hole during the deformation process. Spend.

Referring to FIG. 9 and FIG. 10 , the support member 400 may also be disposed on the inner wall of the light passage. Specifically, the support member 400 may protrude from the inner wall of the light passage. The support member 400 may be provided with a guide surface 410 , and the aperture corresponding to the guide surface 410 is smaller than the outer diameter of the flexible light shielding member 200 . During the process of switching the flexible light shielding member 200 from the first state to the second state, the flexible light shielding member 200 slides along the guide surface 410 to the side close to the support member 400 , so that the flexible light shielding member 200 will be pressed against the support member 400 . The inner side of the light-passing hole is deformed downward, so that the aperture of the light-passing hole is reduced. During the process of switching the flexible light shielding member 200 from the second state to the first state, the flexible light shielding member 200 slides along the guide surface 410 to the side away from the support member 400 , so that the flexible light shielding member 200 can recover under the action of its own elastic force deformation, thereby making the aperture of the clear hole larger. In this solution, the support member 400 supports the outside of the flexible light-shielding member 200, so that the flexible light-shielding member 200 and the support member 400 can be pressed against each other, so that the flexible light-shielding member 200 can be deformed along the guide surface 410 to the inside of the light-passing hole, thereby making The aperture of the clear hole is reduced.

The support member 400 can be an annular protrusion protruding from the inner wall of the light-passing channel, so that the surrounding of the light-passing hole of the flexible light-shielding member 200 can be uniformly squeezed, thereby making the light-passing hole of the flexible light-shielding member 200 s The surrounding shape is changed to be uniform, which is conducive to maintaining the roundness of the light hole. The first end of the guide surface 410 is located on the side close to the flexible light shielding member 200 , and the second end of the guide surface 410 is located on the side away from the flexible light shielding member 200 . The aperture corresponding to the guide surface 410 gradually decreases from the first end of the guide surface 410 to the second end of the guide surface 410 . The aperture corresponding to the first end of the guide surface 410 may be equal to the aperture corresponding to the light passage, so that the end of the flexible light shielding member 200 close to the guide surface 410 can smoothly move to the guide surface 410 along the inner wall of the light passage. The guide surface 410 may be an arcuate surface.

The supporter 400 may be integrally structured with the housing 100 . Optionally, the support member 400 and the housing 100 may be integrally formed by an injection molding process or a cutting process, so as to improve the stability of the connection between the support member 400 and the housing 100 .

There are many ways to connect the support member 400 to the housing 100 , such as screw connection, bonding or snap connection, and the like. Therefore, the embodiment of the present application does not limit the specific connection manner of the support member 400 and the housing 100 .

The first driving member 300 may be connected with the housing 100 and the flexible light shielding member 200, and the first driving member 300 may drive the flexible light shielding member 200 to extend or retract along one end of the light passage. There are many types of the first driving member 300. For example, the screw and the screw sleeve can be used together, and the driving motor can drive the screw and the screw sleeve to rotate relative to each other, and then the flexible light shielding member 200 can be moved along the housing 100 by the screw and the screw sleeve. The rack assembly drives the flexible light shielding member 200 to move along the housing 100 . Therefore, the present application does not limit the specific type of the first driving member 300 .

The first driving member 300 may include a driving coil 310 and a magnetic member 320 . One of the driving coil 310 and the magnetic member 320 is disposed on the housing 100 , and the other is disposed on the flexible light shielding member 200 . In this solution, the driving coil 310 and the magnetic member 320 can generate a mutual attraction or mutual repulsion force by controlling the current direction in the driving coil 310 , and then the flexible light shielding member 200 can be driven to move relative to the housing 100 . The magnetic member 320 can be a magnet or an electrified coil.

Optionally, the driving coil 310 may be disposed on the housing 100 , the magnetic member 320 may be disposed on the flexible light shielding member 200 , and the magnetic member 320 is a permanent magnet. In this embodiment, the magnetic member 320 is set as a permanent magnet, that is, there is no need to energize the magnetic member 320 . Further, disposing the magnetic member 320 on the flexible light shielding member 200 can reduce the wiring difficulty of the diaphragm device and facilitate the manufacture of the diaphragm device. In an optional embodiment, the magnetic member 320 may be a ring-shaped permanent magnet, so that the magnetic member 320 may serve as an annular lip portion of the second end of the second segment 220 .

Based on the aperture device disclosed in the above embodiments, an embodiment of the present invention further discloses a camera module. The camera module includes the aperture device described in any one of the above embodiments.

1 to 6 , the camera module may further include a lens. The lens may be disposed opposite to the light-passing channel of the diaphragm device, or the lens may be disposed in the light-passing channel, so as to adjust the aperture size of the camera module through the diaphragm device. Optionally, the lens can be used as the support 400 in the diaphragm device. Specifically, an annular accommodating cavity may be provided between the lens and the housing 100, and the diameter of the lens is larger than the diameter of the light-passing hole. During the process of switching the flexible light-shielding member 200 from the first state to the second state, the flexible light-shielding member 200 shrinks into the annular accommodating cavity along the lens. During the process of switching the flexible light shielding member 200 from the second state to the first state, the flexible light shielding member 200 extends out of the annular accommodating cavity along the lens. The solution can further simplify the structure of the camera module, reduce the volume of the camera module, reduce the difficulty of manufacturing the camera module, and make the camera module more suitable for mass production. Moreover, in this solution, the lens can not only be used for imaging, but also can be used to support the flexible light shielding member 200 . In addition, the flexible light shielding member 200 can also be sleeved or wrapped around the end of the lens to achieve the purpose of protecting the lens.

The lens can be set in a cylindrical shape, so that the lens can support the deformation around the light-passing hole in the flexible light shielding member 200 and keep the same, thereby improving the circularity of the aperture of the camera module.

In another embodiment disclosed in the present invention, the camera module may further include a lens and a support member 400 , and the lens is disposed on the support member 400 . Specifically, the lens can be movably disposed on the support member 400 to prevent the camera module from driving the flexible shading member 200 during the focus adjustment process, thereby independently adjusting the focal length and the amount of light passing.

1 to 6 , the camera module may further include a second driving member 500. The second driving member 500 is disposed in the housing 100, the second driving member 500 is connected to the lens, and the second driving member 500 can drive the lens along the direction of the lens. Axial movement. The second driving member 500 may be a focusing motor, so as to realize the focusing of the camera module by driving the lens to move through the second driving member 500 .

When the lens is arranged in the light passage, and the lens is used as the supporting member 400, the second driving member 500 can also drive the lens, and the lens and the flexible shading member 200 are squeezed mutually to realize the adjustment of the size of the light-passing hole in the flexible shading member 200. That is, the second driving member 500 can not only be used to adjust the focusing of the camera module, but also can be used to adjust the aperture size of the camera module.

3 and 4 , the camera module may further include a support portion 600 , the support portion 600 is disposed at the first end of the support member 400 , the support portion 600 is provided with an arc-shaped support surface, and the arc-shaped support surface is used to support the flexible light shielding member 200. The arc-shaped support surface can prevent the flexible light-shielding member 200 from having high local pressure, and protect the flexible light-shielding member 200 .

Further, referring to FIGS. 3 and 2 , the support portion 600 may be an annular protrusion protruding from the side wall of the support member 400 , thereby reducing the contact area between the flexible shading member 200 and the side wall of the support member 400 , reducing the contact area between the support member 400 and the side wall of the support member 400 . Frictional force between the flexible shades 200 . Optionally, the arc-shaped support surface is provided with a slippery layer 610 , so as to reduce the frictional force between the support portion 600 and the flexible light shielding member 200 through the slippery layer 610 . The slip layer 610 may be a PET layer.

Based on the camera module disclosed in the embodiments of the present application, the present invention further discloses an electronic device. The electronic device includes the camera module described in any one of the above embodiments.

The electronic devices disclosed in the embodiments of the present application may be mobile phones, watches, vehicle-mounted displays, tablet computers, e-book readers, medical devices, etc. The embodiments of the present application do not limit the specific types of electronic devices.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (13)

1. A diaphragm device, characterized in that it comprises a casing, a flexible light shielding member, a first driving member and a supporting member, The casing has a light-passing channel, the first driving member and the flexible light-shielding member are arranged on the casing; the flexible light-shielding member is made of an elastomer material, and the flexible light-shielding member has a light-passing hole, and the light-passing hole is opposite to the light-passing channel; the first driving member drives the flexible light shielding member to switch between the first state and the second state; When the flexible light-shielding member is in the first state, the flexible light-shielding member at least partially shields the light passage, and the aperture of the light-passing hole of the flexible light-shielding member is the first aperture; When the flexible light-shielding member is in the second state, the aperture of the light-transmitting hole of the flexible light-shielding member is a second aperture, and the second aperture is larger than the first aperture; The support is arranged in the light passage, an annular accommodating cavity is arranged between the support and the housing, and the diameter of the support is larger than the diameter of the light passage; During the process of switching the flexible light shielding member from the first state to the second state, the flexible light shielding member shrinks into the annular accommodating cavity along the support member; During the process of switching the flexible light shielding member from the second state to the first state, the flexible light shielding member extends out of the annular accommodating cavity along the support member. 2. The aperture device according to claim 1, wherein the flexible light shielding member comprises a first segment and a second segment, The first end of the first segment is connected to the housing or the support, the second end of the first segment is connected to the first end of the second segment, and the second segment is opposite to the other. Turn over the first paragraph; The second end of the second segment is slidably engaged with the housing, and the first driving member can drive the second end of the second segment to move along the housing. 3 . The aperture device according to claim 1 , wherein the support member is disposed on the inner wall of the light passage, and the support member protrudes from the inner wall of the light passage, and the support The member has a guide surface, and the aperture corresponding to the guide surface is smaller than the outer diameter of the flexible light-shielding member; During the process of switching the flexible light-shielding member from the first state to the second state, the flexible light-shielding member slides along the guide surface toward the side of the support member; During the process of switching the flexible light-shielding member from the second state to the first state, the flexible light-shielding member slides along the guide surface away from the side of the support member. 4. The aperture device according to any one of claims 1 to 3, wherein the first driving member is connected to the housing and the flexible light shielding member, and the first driving member can be driven The flexible light shielding member extends or contracts along one end of the light passage. 5. The aperture device according to claim 4, wherein the first driving member comprises a driving coil and a magnetic member, One of the driving coil and the magnetic member is disposed on the casing, and the other is disposed on the flexible light shielding member. 6. The aperture device according to claim 5, wherein the magnetic member is a magnet. 7 . A camera module, comprising the aperture device according to any one of claims 1 to 6 . 8 . 8 . The camera module according to claim 7 , further comprising a lens, and the lens is disposed in the light passage. 9 . 9 . The camera module according to claim 8 , further comprising a second driving member, the second driving member is disposed on the housing, the second driving member is connected to the lens, and the The second driving member can drive the lens to move along the axial direction of the lens. 10 . The camera module according to claim 9 , wherein the lens is used as the support member, and the camera module further comprises a support portion, and the support portion is disposed at the first end of the lens. 11 . , the support portion is provided with an arc-shaped support surface, and the arc-shaped support surface is used to support the flexible light shielding member. 11 . The camera module of claim 10 , wherein the support portion is an annular protrusion protruding from the side wall of the lens. 12 . 12 . The camera module according to claim 10 , wherein the arc-shaped support surface is provided with a slip-promoting layer. 13 . 13. An electronic device, comprising the camera module according to any one of claims 7 to 12.

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