WO2022268069A1 - 光圈组件、摄像头模组及电子设备 - Google Patents

光圈组件、摄像头模组及电子设备 Download PDF

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Publication number
WO2022268069A1
WO2022268069A1 PCT/CN2022/100082 CN2022100082W WO2022268069A1 WO 2022268069 A1 WO2022268069 A1 WO 2022268069A1 CN 2022100082 W CN2022100082 W CN 2022100082W WO 2022268069 A1 WO2022268069 A1 WO 2022268069A1
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WO
WIPO (PCT)
Prior art keywords
aperture
light
hole
aperture blade
blade
Prior art date
Application number
PCT/CN2022/100082
Other languages
English (en)
French (fr)
Inventor
宋博
朱林波
杨尚明
Original Assignee
维沃移动通信（杭州）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信（杭州）有限公司 filed Critical 维沃移动通信（杭州）有限公司
Publication of WO2022268069A1 publication Critical patent/WO2022268069A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • G03B9/06—Two or more co-operating pivoted blades, e.g. iris type
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Definitions

  • the application belongs to the technical field of electronic equipment, and in particular relates to an aperture assembly, a camera module and electronic equipment.
  • the purpose of the embodiments of the present application is to provide an aperture assembly, a camera module, and an electronic device, which can solve the problem of a large overall thickness of the electronic device caused by a portrait lens in the related art.
  • an aperture assembly including:
  • the base is provided with a light hole
  • the driving mechanism is arranged on the base;
  • a first aperture blade connected to the driving mechanism, and a first through hole is arranged on the first aperture blade
  • the second aperture blade is connected to the driving mechanism, the second aperture blade is provided with a second through hole, and the first aperture blade and the second aperture blade are stacked;
  • the driving mechanism is used to drive the first aperture blade and the second aperture blade to rotate; to make the first aperture blade and the second aperture blade between the first overlapping state and the second overlapping state switch between; when the first aperture blade and the second aperture blade are in the first overlapping state, the first through hole and the second through hole surround to form a first light through hole, and the When the first aperture blade and the second aperture blade are in the second overlapping state, the first through hole and the second through hole surround to form a second light through hole, and the first light through hole
  • the second light through hole communicates with the light entrance hole, and the aperture of the first light through hole is smaller than the aperture of the second light through hole.
  • the embodiment of the present application also provides a camera module, including a lens barrel, an imaging lens group, a chip and the aperture assembly described in the first aspect, the imaging lens group and the chip are arranged on the lens In the barrel, the aperture assembly is arranged on the light incident side of the lens barrel.
  • the embodiment of the present application further provides an electronic device, including the camera module as described in the second aspect.
  • the first aperture blade and the second aperture blade are driven to rotate through the driving mechanism, so as to switch between the first light aperture and the second aperture, so that the aperture assembly can Switch between a small aperture and a large aperture, so that a camera module can realize portrait shooting with a large aperture and a small viewing angle, and shooting with a small aperture and a large viewing angle range.
  • the electronic device does not need to provide a large thickness to install the portrait camera, which is beneficial. For the development of electronic equipment to thinner and lighter.
  • FIG. 1 is an exploded view of the structure of an aperture assembly provided in an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of forming a first light hole by an aperture assembly provided in an embodiment of the present application
  • Fig. 3 is a schematic structural diagram of forming a second light hole by an aperture assembly provided in an embodiment of the present application
  • Fig. 4 is a structural schematic diagram of an aperture assembly provided by an embodiment of the present application forming a first light through hole and not including a cover plate;
  • Fig. 5 is a schematic structural view of an aperture assembly provided by an embodiment of the present application forming a second light through hole and not including a cover plate;
  • Fig. 6 is one of the structural schematic diagrams of the base, the driving mechanism and the movable parts in the aperture assembly provided by the embodiment of the present application;
  • Fig. 7 is the second structural schematic diagram of the base, the driving mechanism and the movable parts in the aperture assembly provided by the embodiment of the present application;
  • Fig. 8 is one of the imaging schematic diagrams when an aperture assembly provided in an embodiment of the present application is applied to a camera module;
  • FIG. 9 is the second schematic diagram of imaging when an aperture assembly provided by an embodiment of the present application is applied to a camera module.
  • An embodiment of the present application provides an aperture assembly.
  • the aperture assembly 100 includes a base 10, a driving mechanism (not shown), a first aperture blade 40 and a second aperture blade 50, and the base 10 is provided with a light inlet (not shown). ), the drive mechanism is all located on the base 10, the drive mechanism is connected with the first aperture blade 40 and the second aperture blade 50, the first aperture blade 40 is provided with a first through hole 41, the second aperture blade A second through hole 51 is formed on the 50 , and the first aperture blade 40 and the second aperture blade 50 are stacked.
  • the driving mechanism is used to drive the first aperture blade 40 and the second aperture blade 50 to rotate, so that the first aperture blade 40 and the second aperture blade 50 switch between the first overlapping state and the second overlapping state;
  • the first through hole 41 and the second through hole 51 surround and form the first aperture 101;
  • the first through hole 41 and the second through hole 51 encircle to form a second light through hole 102, and the first light through hole 101 and the second light through hole 102 communicate with the light inlet hole , and the diameter of the first light through hole 101 is smaller than the diameter of the second light through hole 102 .
  • the aperture assembly 100 provided in the embodiment of the present application is applied in a camera module. Please refer to the camera module shown in FIG. 8 and FIG. The light incident side, so that light can pass through the aperture assembly 100 and be incident on the lens assembly 200 in the lens barrel 300 to realize image collection and shooting by the camera module.
  • the driving mechanism is used to drive the first aperture blades 40 and the second aperture blades 50 to rotate, so that the first aperture blades 40 and the second aperture blades 50 can surround and form the first light aperture with a smaller aperture. 101, or enclosing and forming a second light hole 102 with a larger aperture.
  • the driving mechanism may include a motor, and the first aperture blade 40 and the second aperture blade 50 may be connected to the rotating shaft of the motor, and the rotation of the motor can drive the first aperture blade 40 and the second aperture blade 50 to opposite directions respectively.
  • the camera module can realize portrait shooting with a large aperture and a small viewing angle, and shooting with a small aperture and a large viewing angle range. In this way, there is no need to separately install an additional portrait camera on the basis of the main camera on the electronic device, which effectively saves the hardware cost and installation space of the electronic device, and at the same time, the electronic device does not need to provide a large thickness to install the portrait camera, which is beneficial. For the development of electronic equipment to thinner and lighter.
  • the aperture assembly 100 further includes a movable part 20 disposed on the base 10, the driving mechanism is connected to the movable part 20, and the movable part 20 is connected to the first aperture blade 40 and the second aperture blade 50; wherein, the drive The mechanism is used to drive the movable member 20 to move between the first position and the second position to drive the first aperture blade 40 and the second aperture blade 50 to rotate.
  • the first aperture blade 40 and the second aperture blade The second aperture blades 50 are in the first overlapping state
  • the first aperture blades 40 and the second aperture blades 50 are in the second overlapping state.
  • the movable member 20 is connected to the first aperture blade 40 and the second aperture blade 50, and the driving mechanism is used to drive the movable member 20 to move between the first position and the second position, so that the movable member 20 drives the first aperture
  • the blade 40 and the second aperture blade 50 rotate to realize switching between a large aperture and a small aperture.
  • the driving mechanism may include a motor and a transmission shaft, and the movable part 20 may be threadedly connected with the transmission shaft; when the motor rotates forward, it drives the transmission shaft to rotate forward, thereby driving the movable part 20 to move to the first position.
  • the motor reverses it drives the transmission shaft to reverse, and then drives the movable part 20 to move to the second position. In this way, the movable member 20 can be driven to move between the first position and the second position through the arrangement of the motor and the transmission shaft.
  • the driving mechanism may also be in other possible structural forms, which are not specifically limited in this embodiment of the present application.
  • the first aperture blade 40 and the second aperture blade 50 can rotate based on the movement of the movable member 20 , and the first aperture blade 40 and the second aperture blade 50 can rotate around the movable member 20 .
  • the movement of the movable member 20 may drive the first aperture blade 40 and the second aperture blade 50 to rotate to gradually move away from the center of the base 10 . As shown in FIG.
  • the aperture of the first light hole 101 is small, and the amount of light entering the camera module is small, that is, the aperture is small, such as the aperture F1.7, at this time the camera module can achieve a larger Large-angle acquisition range, for example, can image a scene in the range of FOV 80° (equivalent focal length 25mm). At this time, the camera module can be used as the main camera of the electronic device to achieve shooting with a larger acquisition field of view acquisition range.
  • FOV 80° equivalent focal length 25mm
  • the movable member 20 can move from the first position to the second position.
  • the movement of the movable member 20 may drive the first aperture blade 40 and the second aperture blade 50 to rotate and gradually approach the center of the base 10 . As shown in FIG.
  • the second light hole 102 has a larger aperture
  • the camera module can also have a larger amount of light, that is, a larger aperture, such as an aperture of F1.4, the camera module It can be used as a portrait lens.
  • the camera module can now image a portrait scene with a field of view (Field of View, FOV) of 46° (equivalent focal length of 50mm) to achieve a blur effect, and then realize portrait shooting.
  • FOV Field of View
  • the movable member 20 is driven to move through the driving mechanism, so as to drive at least one of the first aperture blade 40 and the second aperture blade 50 connected to the movable member 20 to rotate, and then to rotate at the first Switching between the light through hole 101 and the second light through hole 102 also enables the aperture assembly 100 to switch between a small aperture and a large aperture, so that a camera module can realize portrait shooting with a large aperture and a small viewing angle. And shooting with a small aperture and a wide viewing angle range. In this way, the electronic device does not need to provide a large thickness to install the portrait camera, which is beneficial to the development of thinner and lighter electronic devices.
  • the drive mechanism includes a deformable member arranged on the base 10, one end of the deformable member is connected to the power supply of the electronic device, or a separate power supply of the camera module, and the other end is connected to the movable member 20; wherein, the power supply It is used to energize or de-energize the deformable member to drive the deformable member to switch between the first telescopic length and the second telescopic length, and the switching of the telescopic length of the deformable member is used to drive the movable member 20 between the first position and the second telescopic length. Move between two positions; the first telescopic length is smaller than the second telescopic length.
  • the deformable member is a structural member capable of changing in length
  • the deformable member may be a shape memory alloy (Shape Memory Alloys, SMA), or an elastic stretchable member.
  • SMA Shape Memory Alloys
  • the deformable part can be deformed based on a change in temperature; for example, the deformable part can have a first temperature due to heating when it is energized, and the deformable part can be deformed at the first temperature to have a first stretching length; when The deformable part is powered off, the temperature of the deformable part is lowered to have the second temperature, and at this time, the deformable part is deformed and returns to the second stretchable length.
  • SMA Shape Memory Alloys
  • the deformable part can also be other devices that can be deformed based on the power on or off.
  • the power supply is also connected to an electromagnetic part.
  • the deformable part can be a metal spring. Under the action of the magnetic field, it is compressed and deformed to the first stretching length. When the power is cut off, the magnetic field of the electromagnetic part disappears, and the deformed part recovers to the second stretching length without being affected by the magnetic field.
  • the deformable member may also be in other possible forms, which are not listed in this embodiment of the present application.
  • the deformation member is an SMA wire as an example for illustration.
  • One end of the SMA wire is connected to the power supply, and the other end is connected to the movable part 20.
  • the SMA wire can shrink to have a first telescopic length, and then move from the second position to the first position by pulling the movable part 20, and then The movable part 20 drives the first aperture blade 40 and the second aperture blade 50 to rotate to form the first light hole 101; when the power supply is turned off to the SMA wire, the SMA wire can be stretched and restored to the second telescopic length, and then Pushing the movable part 20 to return to the second position, the movable part 20 can simultaneously drive the first aperture blade 40 and the second aperture blade 50 to rotate to form the second light aperture 102 .
  • the driving of the movable member 20 can be achieved by turning on or off the power of the SMA wire, ensuring that the aperture assembly 100 can switch between the first light hole 101
  • deformable member comprises first deformable member 311 and second deformable member 312, and one end of first deformable member 311 is connected to power supply (not shown in figure), and the other end of first deformable member 311 is connected to movable One end of the second deformation member 312 is connected to the power supply, and the other end of the second deformation member 312 is connected to the movable member 20 .
  • first deforming member 311 and the second deforming member 312 when the movable member 20 is in the first position, the first deforming member 311 and the second deforming member 312 are energized and both are at the first telescopic length; as shown in FIG. 7 , when the movable part 20 is in the second position, the first deformation part 311 and the second deformation part 312 are de-energized and both are in the second telescopic length.
  • the first deformation member 311 is a first SMA wire
  • the second deformation member 312 is a second SMA wire.
  • the power supply energizes the first SMA wire and the second SMA wire at the same time, and then both the first SMA wire and the second SMA wire shrink to have a first telescopic length, and then the movable part 20 can be pulled to move toward the center of the base 10, so that Drive the first aperture blade 40 and the second aperture blade 50 to rotate away from the center of the base 10 to form the first light hole 101; when the first SMA wire and the second SMA wire are powered off, the first SMA wire and the second SMA wire
  • the two SMA wires can be extended and returned to the second telescopic length, so as to pull the movable part 20 to move away from the center of the base 10, so as to drive the first aperture blade 40 and the second aperture blade 50 to rotate to form the second light transmission.
  • Hole 102 the center of the base 10 may be located on the extension line of the line connecting the first position and the
  • the first target deformation member when the movable member 20 is in the first position, the first target deformation member is energized and is at the first telescopic length, the second target deformation member is powered off and is at the second telescopic length, and the movable member
  • the first target deformation member When 20 is in the second position, the first target deformation member is powered off and is at the second telescopic length, the second target deformation member is powered on and is at the first telescopic length, and the first target deformation member is the first deformation member 311 and the second One of the deformation elements 312 , the second target deformation element is the other one of the first deformation element 311 and the second deformation element 312 .
  • the first SMA wire as the first target deformable part and the second SMA wire as the second target deformable part as an example for illustration.
  • the power supply can be energized to the first SMA wire and de-energized to the second SMA wire, and then the first SMA wire shrinks to be in the first telescopic length, and the second SMA wire can recover to the second telescopic length after power-off, the first SMA wire
  • the wire will also generate a pulling force on the movable part 20, and the second SMA wire will generate a pushing force on the movable part 20, thereby driving the movable part 20 to move to the first position under the joint action of the first SMA wire and the second SMA wire, so as to drive
  • the first aperture blade 40 and the second aperture blade 50 rotate to be in a first overlapping state.
  • the first SMA wire is de-energized and returns to the second telescopic length to generate thrust to the movable part 20, and the second SMA wire is energized and contracted to be in the first position. stretch the length to generate tension on the movable part 20, and then the first SMA wire and the second SMA wire jointly drive the movable part 20 to move from the first position to the second position, so as to drive the first aperture blade 40 and the second aperture blade 50 to rotate to In the second overlapping state.
  • the center of the base 10 is not located on the extension line of the line connecting the first position and the second position.
  • the base 10 may be provided with a first SMA interface 61 and a second SMA interface 62, the first SMA line is connected to the power supply through the first SMA interface 61, and the second SMA line is connected to the power supply through the second SMA interface 62 Make the connection to the power supply.
  • the movable member 20 is jointly driven to move by two deformable members to ensure sufficient driving force for the movable member 20, so that the movable member 20 can drive the first aperture blade 40 and the second aperture blade 50 to rotate, It is ensured that the aperture assembly 100 can switch between a large aperture and a small aperture.
  • the driving mechanism may further include a reset elastic piece 32 , and the reset elastic piece 32 abuts against the movable part 20 , or may also be connected with the movable part 20 .
  • the reset elastic piece 32 pushes the reset elastic piece 32 to be in the third telescopic length
  • the reset elastic piece 32 pushes the movable part 20 to move to the The above-mentioned second position, and the reset elastic piece 32 is in the fourth telescopic length, and the fourth telescopic length is greater than the third telescopic length.
  • the reset elastic piece 32 has elasticity, and the reset elastic piece 32 can expand and contract to realize the length change.
  • the deformable part when the deformable part is energized, it shrinks to drive the movable part 20 to move to the first position, and the movement of the movable part 20 will also compress the reset elastic piece 32 to be in the third telescopic length; when the deformable part is powered off At this time, the deformable part may not exert force on the movable part 20, and the reset elastic piece 32 will restore its normal elongation length based on its elastic function, for example, when it is stretched to the fourth telescopic length, the elongation of the reset elastic piece 32 can also be adjusted. Push the movable part 20 back to the second position.
  • the movable part 20 is driven to move from the second position to the first position by energizing the deformable part.
  • the deformable part When the deformable part is de-energized, the movable part 20 can be pushed from the first position to the second position through the reset spring 32, and then the movable part 20 can be moved from the first position to the second position through the deformation.
  • the setting of the component and the reset elastic piece 32 ensures that the movable component 20 can move between the first position and the second position, and ensures that the aperture assembly 100 can switch between a large aperture and a small aperture.
  • the first aperture blade 40 is provided with a first positioning hole 42
  • the second aperture blade 50 is provided with a second positioning hole 52
  • the movable part 20 passes through the first positioning hole 42 and the second positioning hole 52, and moves
  • the member 20 can move in the first positioning hole 42 and the second positioning hole 52 to drive the first aperture blade 40 and the second aperture blade 50 to rotate.
  • the first positioning hole 42 and the second positioning hole 52 are all strip holes, and the length direction of the strip hole is also the moving direction of the movable part 20.
  • the movement of the movable part 20 can also push the first aperture blade 40 and the second aperture blade 50 to rotate, thereby ensuring that the movable part 20 can be positioned at the first position and a second position.
  • the first through hole 41 includes a first light transmission area 411 and a second light transmission area 412 , the area of the first light transmission area 411 is larger than the area of the second light transmission area 412 , the second light transmission area 412
  • the second through hole 51 includes a third light-passing area 511 and a fourth light-passing area 512, the area of the third light-passing area 511 is larger than the area of the fourth light-passing area 512; wherein, the first aperture blade 40 and the second aperture blade When 50 is in the first overlapping state, the fourth light transmission area 512 and the second light transmission area 412 surround and form the first light transmission hole 101 (as shown in FIG.
  • the base 10 covers the third light transmission area 511 and the first light transmission area 411; when the first aperture blade 40 and the second aperture blade 50 are in the second overlapping state, the third light transmission area 511 and the first light transmission area 411 enclose the second light transmission hole 102 (as shown in FIG. 5 ), and the base 10 covers the fourth light-transmitting area 512 and the second light-transmitting area 412 .
  • the aperture assembly 100 can be switched between a large aperture and a small aperture, so that the image acquisition angle of view of the camera module can be switched to realize different shooting modes of the camera module.
  • the first light-transmissive area 411 is a first circular arc
  • the second light-transmissive area 412 is a second circular arc
  • the first end of the first circular arc is connected to the first end of the second circular arc
  • the first circular arc The second end of the arc is connected to the second end of the second arc, and the radius of the first arc is greater than the radius of the second arc
  • the third light-passing area 511 is the third arc
  • the fourth light-passing area 512 is The fourth arc
  • the first end of the third arc is connected to the first end of the fourth arc
  • the second end of the third arc is connected to the second end of the fourth arc
  • the radius of the third arc The radius of the fourth arc is equal to the radius of the first arc
  • the radius of the fourth arc is equal to the radius of the second arc.
  • the first circular arc and the second circular arc are connected end to end to form a gourd-shaped first through hole 41
  • the third circular arc and the fourth circular arc are connected end to end to form a gourd-shaped first through hole 41.
  • Two through holes 51 The radius of the third circular arc is equal to that of the first circular arc, thereby forming the second light through hole 102
  • the radius of the second circular arc is equal to that of the fourth circular arc, thereby forming the first light through hole 101 .
  • the base 10 includes a cover plate 11 and a base 12, the movable part 20 and the driving mechanism are arranged on the cover plate 11 or the base 12, and the movable part 20, the driving mechanism, the first aperture blade 40 and the second aperture blade 50 is located between the cover plate 11 and the base 12 , the cover plate 11 is provided with a first light entrance hole 111 , and the base 12 is provided with a second light entrance hole 121 opposite to the first light entrance hole 111 .
  • both the movable part 20 and the driving mechanism are arranged on the base 12 .
  • the first light transmission area 411 and the second light transmission area 412 enclose the first light transmission hole 101
  • the cover plate 11 covers The third light-passing area 511 and the fourth light-passing area 512, to ensure that the light can only be incident on the lens from the first light entrance hole 111, the first light entrance hole 101 and the second light entrance hole 121; when the first aperture blade 40 and the second aperture blade 50 are in the second overlapping state, the third light transmission area 511 and the fourth light transmission area 512 surround and form the second light transmission hole 102, and the cover plate 11 covers the first light transmission area 411 and the second light transmission area 411
  • the light-through area 412 ensures that light can only enter the lens from the first light-incoming hole 111 , the second light-incoming hole 102 and the second light-incoming hole 121 .
  • the aperture of the first light entrance hole 111 and the aperture of the second light entrance hole 121 are greater than or equal to the aperture of the second light passage hole 102, to ensure that the maximum incident range of light is the aperture of the second light passage hole 102 .
  • the diameters of the first light entrance hole 111 and the second light entrance hole 121 are both equal to the diameter of the second light passage hole 102 .
  • the aperture of the first light entrance hole 111 is the same as the aperture of the second light entrance hole 121, or, the aperture of the first light entrance hole 111 is smaller than the aperture of the second light entrance hole 121, so as to ensure that the cover plate 11 is opposite to the second light entrance hole 121.
  • the shielding of areas other than the first light hole 101 or the second light hole 102 ensures that the light incident area of the aperture assembly 100 can only be the area of the first light hole 101 or the area of the second light hole 102 .
  • the embodiment of the present application also provides a camera module.
  • camera module includes lens barrel 300, imaging lens group 200, chip 400 and aperture assembly 100 as described in the above embodiment, imaging lens group 200 and chip 400 are arranged in lens barrel 300, aperture The assembly 100 is disposed on the light incident side of the lens barrel 300 .
  • the aperture assembly 100 forms a small aperture with a smaller aperture.
  • the camera module can realize image acquisition with a larger field of view and imaging with a larger viewing angle. , and then realize the main camera shooting.
  • the aperture switching and principle of the aperture assembly 100 can refer to the specific description in the above-mentioned embodiment of the aperture assembly, and will not be repeated here.
  • the camera module includes all the technical features of the aperture assembly 100 in the above embodiment, so it can realize all the technical solutions of the above aperture assembly embodiment, and can achieve the same technical effect. In order to avoid repetition, here I won't repeat them here.
  • an infrared filter 500 is also provided between the imaging lens group 200 and the chip 400, and the infrared filter 500 can be made of a glass sheet coated with an infrared reflective film to filter out infrared rays to ensure that the camera The imaging quality of the module.
  • the imaging lens group 200 includes at least six even-order aspheric lenses, which can correct light aberrations, enable images to be clearly imaged on the chip 400, and improve the imaging quality of the camera module.
  • the imaging lens set 200 includes 8 even-order aspheric lenses, and the surface design coefficients of the 8 even-order aspheric lenses are shown in Table 1 and Table 2 below.
  • the eight even-order aspherical lenses are sequentially the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the Sixth lens, seventh lens and eighth lens.
  • S1 indicates the surface of the first lens facing the side of the aperture assembly
  • S2 indicates the surface of the first lens facing away from the side of the aperture assembly
  • S3 indicates the surface of the second lens facing the side of the aperture assembly
  • S4 indicates The surface of the second lens facing away from the aperture assembly
  • S5 indicates the surface of the third lens facing the aperture assembly
  • S6 indicates the surface of the third lens facing away from the aperture assembly
  • S7 indicates the surface of the fourth lens facing the aperture assembly
  • S8 indicates the surface of the fourth lens facing away from the aperture assembly
  • S9 indicates the surface of the fifth lens facing away from the aperture assembly
  • S10 indicates the surface of the fifth lens facing away from the aperture assembly
  • S11 indicates the sixth lens facing the aperture The surface on one side of the assembly
  • S12 indicates the surface of the sixth lens facing away from the aperture assembly
  • Z is the sag of the surface parallel to the Z axis (the Z axis is consistent with the optical axis)
  • c is the curvature of the surface (the reciprocal of the radius of curvature of the surface)
  • K is the conic coefficient
  • r is the radius of curvature
  • A, B, C, D, E, F, G, and H are the aspheric coefficients in Table 2, respectively.
  • the combination of 8 even-order aspheric lenses can correct the light aberration, so that the image can be clearly imaged on the chip, and the imaging quality of the camera module can be improved.
  • the embodiment of the present application also provides an electronic device, the electronic device includes the camera module described in the above embodiment. It should be noted that the electronic device includes all the technical features of the camera module and the aperture assembly in the above embodiments, and can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • electronic devices include but are not limited to mobile phones, tablet computers, notebook computers, desktop computers, smart wearable devices, and the like.

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  • Physics & Mathematics (AREA)
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Abstract

一种光圈组件（100）、摄像头模组及电子设备，属于电子设备技术领域。其中，光圈组件（100）包括基座（10）、驱动机构、第一光圈叶片（40）和第二光圈叶片（50），基座（10）上设有进光孔，驱动机构设于基座（10）上，驱动机构与第一光圈叶片（40）和第二光圈叶片（50）连接，且第一光圈叶片（40）和第二光圈叶片（50）分别设有第一通孔（41）和第二通孔（51）；驱动机构用于驱动第一光圈叶片（40）和第二光圈叶片（50）转动；在第一光圈叶片（40）和第二光圈叶片（50）处于第一重叠状态时，第一通孔（41）和第二通孔（51）围合形成第一通光孔（101），在第一光圈叶片（40）和第二光圈叶片（50）处于第二重叠状态时，第一通孔（41）和第二通孔（51）围合形成第二通光孔（102），第一通光孔（101）的孔径小于第二通光孔（102）的孔径。

Description

光圈组件、摄像头模组及电子设备
相关申请的交叉引用
本申请主张在2021年06月25日在中国提交的中国专利申请No.202110710053.2的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于电子设备技术领域，具体涉及一种光圈组件、摄像头模组及电子设备。
背景技术
随着手机等电子设备在人们生活中应用越来越普及，人们对于电子设备拍照的要求也越来越高。目前，为了达到突出精细化人物主体、自然平滑的虚化效果，电子设备上大多会单独设置一个人像镜头，而人像镜头的焦距较大，这就要求人像镜头具有尽可能大的光圈，而若将镜头的光圈做大需要更高的镜头高度，这也就导致现有电子设备的整体厚度更大，不利于电子设备向轻薄化发展。
发明内容
本申请实施例的目的是提供一种光圈组件、摄像头模组及电子设备，能够解决相关技术中人像镜头造成电子设备的整体厚度较大的问题。
第一方面，本申请实施例提供了一种光圈组件，包括：
基座，所述基座上设有进光孔；
驱动机构，设于所述基座上；
第一光圈叶片，与所述驱动机构连接，所述第一光圈叶片上设有第一通孔；
第二光圈叶片，与所述驱动机构连接，所述第二光圈叶片上设有第二通孔，且所述第一光圈叶片与所述第二光圈叶片层叠设置；
其中，所述驱动机构用于驱动所述第一光圈叶片和所述第二光圈叶片转动；以使所述第一光圈叶片和所述第二光圈叶片在第一重叠状态和第二重叠状态之间切换；在所述第一光圈叶片和所述第二光圈叶片处于所述第一重叠状态时，所述第一通孔和所述第二通孔围合形成第一通光孔，在所述第一光圈叶片和所述第二光圈叶片处于所述第二重叠状态时，所述第一通孔和所述第二通孔围合形成第二通光孔，所述第一通光孔和所述第二通光孔与所述进光孔相通，且所述第一通光孔的孔径小于所述第二通光孔的孔径。
第二方面，本申请实施例还提供了一种摄像头模组，包括镜筒、成像镜片组、芯片及第一方面所述的光圈组件，所述成像镜片组及所述芯片设于所述镜筒内，所述光圈组件设于所述镜筒的入光侧。
第三方面，本申请实施例还提供了一种电子设备，包括如第二方面所述的摄像头模组。
本申请实施例提供的技术方案中，通过驱动机构驱动第一光圈叶片和第二光圈叶片中转动，进而以在第一通光孔和第二通光孔之间切换，也就使得光圈组件能够在小光圈和大光圈之间切换，从而通过一个摄像头模组就能够实现大光圈、小视角的人像拍摄，以及小光圈、大视角范围的拍摄。这样，电子设备上也就无需在主摄像头的基础上再单独设置额外的人像摄像头，有效节省了电子设备的硬件成本和安装空间，同时电子设备也无需提供较大的厚度来安装人像摄像头，有益于电子设备向轻薄化发展。
附图说明
图1是本申请实施例提供的一种光圈组件的结构爆炸图；
图2是本申请实施例提供的一种光圈组件形成第一通光孔的结构示意图；
图3是本申请实施例提供的一种光圈组件形成第二通光孔的结构示意图；
图4是本申请实施例提供的一种光圈组件形成第一通光孔且不包括盖板的结构示意图；
图5是本申请实施例提供的一种光圈组件形成第二通光孔且不包括盖板 的结构示意图；
图6是本申请实施例提供的一种光圈组件中底座、驱动机构和活动件的结构示意图之一；
图7是本申请实施例提供的一种光圈组件中底座、驱动机构和活动件的结构示意图之二；
图8是本申请实施例提供的一种光圈组件应用于摄像头模组时的成像示意图之一；
图9是本申请实施例提供的一种光圈组件应用于摄像头模组时的成像示意图之二。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请实施例提供了一种光圈组件。
请参照图1至图7，所述光圈组件100包括基座10、驱动机构(图未示)、第一光圈叶片40和第二光圈叶片50，基座10上设有进光孔(未标示)，所述驱动机构均设于基座10上，所述驱动机构与第一光圈叶片40和第二光圈叶片50连接，第一光圈叶片40上设有第一通孔41，第二光圈叶片50上设 有第二通孔51，且第一光圈叶片40与第二光圈叶片50层叠设置。
其中，所述驱动机构用于驱动第一光圈叶片40和第二光圈叶片50中转动，以使第一光圈叶片40和第二光圈叶片50在第一重叠状态和第二重叠状态之间切换；在第一光圈叶片40和第二光圈叶片50处于第一重叠状态时，第一通孔41和第二通孔51围合形成第一通光孔101；在第一光圈叶片40和第二光圈叶片50处于第二重叠状态时，第一通孔41和第二通孔51围合形成第二通光孔102，第一通光孔101和第二通光孔102与所述进光孔相通，且第一通光孔101的孔径小于第二通光孔102的孔径。
需要说明地，本申请实施例提供的光圈组件100应用在摄像头模组中，请结合参照图8和图9所示的摄像头模组，光圈组件100用于安装在摄像头模组中镜筒300的入光侧，以使得光线能够通过所述光圈组件100入射到镜筒300内的镜片组件200上，实现摄像头模组对图像的采集和拍摄。
本申请实施例中，驱动机构用于驱动第一光圈叶片40和第二光圈叶片50转动，以使得第一光圈叶片40和第二光圈叶片50能够围合形成孔径较小的第一通光孔101，或者是围合形成孔径较大的第二通光孔102。例如，驱动机构可以是包括电机，第一光圈叶片40和第二光圈叶片50可以是与电机的转轴连接，电机的转动，能够驱动第一光圈叶片40和第二光圈叶片50分别向相反的方向转动，进而以使第一光圈叶片40和第二光圈叶片50在第一重叠状态和第二重叠状态之间切换，也就使得光圈组件100能够在小光圈和大光圈之间切换，从而通过一个摄像头模组就能够实现大光圈、小视角的人像拍摄，以及小光圈、大视角范围的拍摄。这样，电子设备上也就无需在主摄像头的基础上再单独设置额外的人像摄像头，有效节省了电子设备的硬件成本和安装空间，同时电子设备也无需提供较大的厚度来安装人像摄像头，有益于电子设备向轻薄化发展。
可选地，光圈组件100还包括设于基座10上的活动件20，所述驱动机构连接活动件20，活动件20连接第一光圈叶片40和第二光圈叶片50；其中，所述驱动机构用于驱动活动件20在第一位置和第二位置之间移动，以带动第 一光圈叶片40和第二光圈叶片50转动，在活动件20处于第一位置时，第一光圈叶片40和第二光圈叶片50处于第一重叠状态，在活动件20处于第二位置时，第一光圈叶片40和第二光圈叶片50处于第二重叠状态。
可以理解地，活动件20连接第一光圈叶片40和第二光圈叶片50，驱动机构用于驱动活动件20在第一位置和第二位置之间移动，进而以使得活动件20带动第一光圈叶片40和第二光圈叶片50转动而实现大光圈和小光圈的切换。例如，驱动机构可以是包括电机和传动轴，活动件20可以是与所述传动轴螺纹连接；当电机正转时，带动传动轴正转，进而以驱动活动件20移动至第一位置，当电机反转时，带动传动轴反转，进而以驱动活动件20移动至第二位置。这样，也就通过电机和传动轴的设置，能够驱动活动件20在第一位置和第二位置之间移动。当然，所述驱动机构还可以是其他可能的结构形式，本申请实施例在此不做具体限定。
本申请实施例中，第一光圈叶片40和第二光圈叶片50中能够基于活动件20的移动而转动，第一光圈叶片40和第二光圈叶片50可以是以活动件20为轴进行转动。例如，当活动件20在移动至第一位置的过程中，活动件20的移动可以是带动第一光圈叶片40和第二光圈叶片50转动，以逐渐远离基座10的中心。如图4所示，当活动件20移动至第一位置时，第一光圈叶片40和第二光圈叶片50转动至处于第一重叠状态，此时第一光圈叶片40上的第一通孔41的部分和第二光圈叶片50上的第二通孔51的部分重合，以围合形成第一通光孔101，该第一通光孔101与基座10上的进光孔相通；此时，第一光圈叶片40和第二光圈叶片50处于第一重叠状态时，第一通孔41的未形成第一通光孔101的部分被基座10所遮挡，第二通孔51的未形成第一通光孔101的部分也被基座10所遮挡，进而光线只能能够通过进光孔和第一通光孔101以入射到镜筒内的镜片组件上。请结合图4和图9，第一通光孔101的孔径较小，进而摄像头模组的进光量较小，也就是较小的光圈，如光圈F1.7，此时摄像头模组能够实现较大角度的采集范围，例如能够对FOV80°范围(等效焦距25mm)的场景成像，此时摄像头模组能够作为电子设备的主摄像头 使用实现较大采集视野采集范围的拍摄。
进一步地，活动件20能够从第一位置移动至第二位置。活动件20在移动至第二位置的过程中，活动件20的移动可以是带动第一光圈叶片40和第二光圈叶片50转动而逐渐向基座10的中心靠拢。如图5所示，当活动件20移动至第二位置时，第一光圈叶片40和第二光圈叶片50转动至处于第二重叠状态，此时第一光圈叶片40上的第一通孔41的部分和第二光圈叶片50上的第二通孔51的部分重合，以围合形成第二通光孔102，第一通孔41的未形成第二通光孔102的部分被基座10所遮挡，第二通孔51的未形成第二通光孔102的部分也被基座10所遮挡，进而光线只能通过进光孔和第二通光孔102入射到镜筒内的镜片组件上。请结合图5和图8，第二通光孔102具有较大的孔径，进而摄像头模组也就能够具有较大的进光量，也即较大的光圈，例如光圈F1.4，摄像头模组能够作为人像镜头使用，例如摄像头模组此时能够对视场角(Field of View，FOV)46°范围(等效焦距50mm)的人像场景成像，达到虚化效果，进而实现人像拍摄。
本申请实施例提供的光圈组件100，通过驱动机构驱动活动件20移动，以带动与活动件20连接的第一光圈叶片40和第二光圈叶片50中的至少一者转动，进而以在第一通光孔101和第二通光孔102之间切换，也就使得光圈组件100能够在小光圈和大光圈之间切换，从而通过一个摄像头模组就能够实现大光圈、小视角的人像拍摄，以及小光圈、大视角范围的拍摄。这样，电子设备也就无需提供较大的厚度来安装人像摄像头，有益于电子设备向轻薄化发展。
本申请实施例中，所述驱动机构包括设于基座10上的形变件，形变件的一端连接电子设备的电源，或者是摄像头模组单独的电源，另一端连接活动件20；其中，电源用于对形变件通电或断电，以驱动形变件在第一伸缩长度和第二伸缩长度之间切换，形变件伸缩长度的切换用于带动活动件20在所述第一位置和所述第二位置之间移动；所述第一伸缩长度小于所述第二伸缩长度。
可选地，形变件为能够实现长度变化的结构件，例如形变件可以是形状记忆合金(Shape Memory Alloys，SMA)，或者是弹性伸缩件等。例如，形变件可以是基于温度的变化而发生形变；比如形变件可以是在通电的情况下因加热而具有第一温度，形变件能够在第一温度下发生形变而具有第一伸缩长度；当形变件断电，形变件降温而具有第二温度，此时形变件发生形变恢复至第二伸缩长度。或者，形变件也可以是其他的能够基于电源通电或断电而发生形变的器件，例如电源还连接有电磁件，形变件可以是金属弹簧，在通电的情况下电磁件产生磁场，形变件在磁场作用下压缩而形变至第一伸缩长度，当电源断电，电磁件的磁场消失，此时形变件不受磁场作用而恢复至第二伸缩长度。当然，形变件还可以是其他可能的形式，本申请实施例不做一一列举。
本申请实施例中，以所述形变件为SMA线为例进行说明。SMA线的一端连接电源，另一端连接活动件20，当电源对SMA线通电，SMA线可以是收缩而具有第一伸缩长度，进而以拉动活动件20从第二位置移动至第一位置，进而活动件20带动第一光圈叶片40和第二光圈叶片50转动，以形成第一通光孔101；当电源对SMA线断电，SMA线可以是伸长而恢复到第二伸缩长度，进而以推动活动件20复位至第二位置，活动件20可以是同时带动第一光圈叶片40和第二光圈叶片50转动，以形成第二通光孔102。这样，通过SMA线的通电或断电也就能够实现对活动件20的驱动，确保光圈组件100能够在第一通光孔101和第二通光孔102之间切换。
请参照图4至图7，所述形变件包括第一形变件311和第二形变件312，第一形变件311的一端连接电源(图未示)，第一形变件311的另一端连接活动件20，第二形变件312的一端连接电源，第二形变件312的另一端连接活动件20。在一种实施方式中，如图6所示，当活动件20处于所述第一位置时，第一形变件311和第二形变件312通电且均处于第一伸缩长度；如图7所示，活动件20处于所述第二位置时，第一形变件311和第二形变件312断电且均处于第二伸缩长度。
例如，第一形变件311为第一SMA线，第二形变件312为第二SMA线。电源同时对第一SMA线和第二SMA线通电，进而第一SMA线和第二SMA线都收缩而具有第一伸缩长度，进而可以拉动活动件20向靠近基座10中心的方向移动，以带动第一光圈叶片40和第二光圈叶片50向远离基座10中心的方向转动，形成第一通光孔101；当第一SMA线和第二SMA线断电时，第一SMA线和第二SMA线可以是伸长而恢复至第二伸缩长度，以拉动活动件20向远离基座10中心的方向移动，以带动第一光圈叶片40和第二光圈叶片50转动而形成第二通光孔102。其中，基座10的中心可以是位于所述第一位置和第二位置的连线的延长线上。
或者，在另一种实施方式中，活动件20处于所述第一位置时，第一目标形变件通电且处于第一伸缩长度，第二目标形变件断电且处于第二伸缩长度，活动件20处于所述第二位置时，第一目标形变件断电且处于第二伸缩长度，第二目标形变件通电且处于第一伸缩长度，第一目标形变件为第一形变件311和第二形变件312中的一者，第二目标形变件为第一形变件311和第二形变件312中的另一者。
例如，请结合图4和图5，以第一SMA线为第一目标形变件，第二SMA线为第二目标形变件为例进行说明。电源可以是对第一SMA线通电而对第二SMA线断电，进而第一SMA线收缩而处于第一伸缩长度，而第二SMA线断电后能够恢复至第二伸缩长度，第一SMA线也就会对活动件20产生拉力，而第二SMA线对活动件20产生推力，从而在第一SMA线和第二SMA线的共同作用下驱动活动件20活动至第一位置，以带动第一光圈叶片40和第二光圈叶片50转动至处于第一重叠状态。而当电源对第一SMA线断电而对第二SMA线通电时，第一SMA线断电而恢复至第二伸缩长度以对活动件20产生推力，第二SMA线通电收缩而处于第一伸缩长度以对活动件20产生拉力，进而第一SMA线和第二SMA线共同驱动活动件20从第一位置移动至第二位置，以带动第一光圈叶片40和第二光圈叶片50转动至处于第二重叠状态。需要说明的是，本实施方式中，基座10中心不位于第一位置和第二位 置的连线的延长线上。
可选地，基座10上可以是设有第一SMA接口61和第二SMA接口62，第一SMA线通过第一SMA接口61实现与电源的连接，第二SMA线通过第二SMA接口62实现与电源的连接。
本申请实施例中，通过两个形变件来共同驱动活动件20移动，以确保对活动件20有足够的驱动力，使得活动件20能够带动第一光圈叶片40和第二光圈叶片50转动，保障光圈组件100能够在大光圈和小光圈之间切换。
可选地，驱动机构还可以包括复位弹片32，所述复位弹片32抵接活动件20，或者也可以是与活动件20连接。其中，在形变件通电且活动件20处于所述第一位置时，活动件20推动复位弹片32处于第三伸缩长度，在形变件断电的情况下，复位弹片32推动活动件20移动至所述第二位置，且复位弹片32处于第四伸缩长度，第四伸缩长度大于第三伸缩长度。
可以理解地，复位弹片32具有弹性，进而复位弹片32也就能够伸缩以实现长度变化。请结合图6和图7，形变件通电时收缩以带动活动件20向第一位置移动，活动件20的移动也就会挤压复位弹片32压缩而处于第三伸缩长度；当形变件断电，此时形变件可以是对活动件20不产生作用力，复位弹片32基于其弹性功能会恢复其正常伸长长度，例如伸长至第四伸缩长度，复位弹片32的伸长也就能够对推动活动件20回位至第二位置。这样，通过形变件通电来驱动活动件20从第二位置移动至第一位置，当形变件断电，则可以通过复位弹片32推动活动件20从第一位置移动至第二位置，进而通过形变件和复位弹片32的设置，以保障活动件20能够在第一位置和第二位置之间移动，确保光圈组件100能够在大光圈和小光圈之间切换。
本申请实施例中，第一光圈叶片40设有第一定位孔42，第二光圈叶片50设有第二定位孔52，活动件20贯穿第一定位孔42和第二定位孔52，且活动件20可在第一定位孔42以及第二定位孔52中移动，以带动第一光圈叶片40和第二光圈叶片50转动。例如，第一定位孔42和第二定位孔52均为条形孔，条形孔的长度方向也就是活动件20的移动方向，活动件20在移动 过程中，与第一定位孔42的孔壁和第二定位孔52的孔壁中的至少一者抵接，进而活动件20的移动，也就能够推动第一光圈叶片40和第二光圈叶片50转动，进而以保障活动件20能够在第一位置和第二位置之间移动。
请参照图1、图4和图5，第一通孔41包括第一通光区域411和第二通光区域412，第一通光区域411的面积大于第二通光区域412的面积，第二通孔51包括第三通光区域511和第四通光区域512，第三通光区域511的面积大于第四通光区域512的面积；其中，在第一光圈叶片40和第二光圈叶片50处于第一重叠状态时，第四通光区域512和第二通光区域412围合形成所述第一通光孔101(如图4所示)，且基座10覆盖第三通光区域511和第一通光区域411；在第一光圈叶片40和第二光圈叶片50处于第二重叠状态时，第三通光区域511和第一通光区域411围合形成第二通光孔102(如图5所示)，且基座10覆盖第四通光区域512和第二通光区域412。这样，也就使光圈组件100能够在大光圈和小光圈之间切换，以使得摄像头模组的图像采集视角的切换，实现摄像头模组的不同拍摄模式。
可选地，第一通光区域411为第一圆弧，第二通光区域412为第二圆弧，第一圆弧的第一端与第二圆弧的第一端连接，第一圆弧的第二端与第二圆弧的第二端连接，且第一圆弧的半径大于第二圆弧的半径；第三通光区域511为第三圆弧，第四通光区域512为第四圆弧，第三圆弧的第一端与第四圆弧的第一端连接，第三圆弧的第二端与第四圆弧的第二端连接，且第三圆弧的半径与第一圆弧的半径相等，第四圆弧的半径与第二圆弧的半径相等。如图1所示，第一圆弧和第二圆弧首尾相接，形成类似葫芦形的第一通孔41，第三圆弧和第四圆弧首尾相接，也形成类似葫芦形的第二通孔51。第三圆弧和第一圆弧的半径相等，进而能够围合形成第二通光孔102，第二圆弧和第四圆弧半径相等，进而能够围合形成第一通光孔101。
本申请实施例中，基座10包括盖板11和底座12，活动件20和驱动机构设于盖板11或底座12，且活动件20、驱动机构、第一光圈叶片40和第二光圈叶片50位于盖板11和底座12之间，盖板11设有第一进光孔111，底座 12设有与第一进光孔111相对的第二进光孔121。
可选地，活动件20和驱动机构均设于底座12上。其中，当第一光圈叶片40和第二光圈叶片50处于第一重叠状态时，第一通光区域411和第二通光区域412围合形成所述第一通光孔101，盖板11覆盖第三通光区域511和第四通光区域512，以确保光线只能从第一进光孔111、第一通光孔101和第二进光孔121入射到镜片上；当第一光圈叶片40和第二光圈叶片50处于第二重叠状态时，第三通光区域511和第四通光区域512围合形成第二通光孔102，盖板11覆盖第一通光区域411和第二通光区域412，以确保光线只能从第一进光孔111、第二通光孔102和第二进光孔121入射到镜片上。
其中，第一进光孔111的孔径以及第二进光孔121的孔径均要大于或等于第二通光孔102的孔径，以确保光线的最大入射范围也就是第二通光孔102的孔径。优选地，第一进光孔111的孔径以及第二进光孔121的孔径均等于第二通光孔102的孔径。
可选地，第一进光孔111的孔径与第二进光孔121的孔径相同，或者，第一进光孔111的孔径小于第二进光孔121的孔径，以保障盖板11对第一通光孔101或第二通光孔102以外区域的遮挡，确保光圈组件100的入光面积只能是第一通光孔101的面积或第二通光孔102的面积。
本申请实施例还提供了一种摄像头模组。
请参照图8和图9，摄像头模组包括镜筒300、成像镜片组200、芯片400及如上实施例中所述的光圈组件100，成像镜片组200及芯片400设于镜筒300内，光圈组件100设于镜筒300的入光侧。
其中，当需要使用摄像头模组作为人像镜头进行人像拍摄时，请参照图8，此时光圈组件100形成具有较大孔径的大光圈，摄像头模组能够对较大视场角范围内的人像场景成像，达到虚化效果，进而以实现人像拍摄。当需要使用摄像头模组作为主摄像头使用时，请参照图9，此时光圈组件100形成较小孔径的小光圈，此时摄像头模组能够实现较大视野的图像采集，实现较大视角的成像，进而以实现主摄拍摄。光圈组件100的光圈切换及原理可以 是参考上述光圈组件实施例中的具体描述，此处不再赘述。
需要说明地，所述摄像头模组包括如上实施例中光圈组件100的全部技术特征，因此也就能够实现上述光圈组件实施例的全部技术方案，并能达到相同的技术效果，为避免重复，此处不再赘述。
可选地，所述成像镜片组200与芯片400之间还设有红外滤光片500，该红外滤光片500可以是镀上红外反射膜的玻璃片制成，以过滤掉红外线，确保摄像头模组的成像质量。
本申请实施例中，所述成像镜片组200包括至少六片偶次非球面镜片，能够矫正光线像差，使图像能够清晰地成像在芯片400上，提高摄像头模组的成像质量。
在一种实施方式中，所述成像镜片组200包括8片偶次非球面镜片，这8片偶次非球面镜片的面型设计系数如下表1和表2所示。
表1.镜片参数表
Figure PCTCN2022100082-appb-000001
表2.镜片非球面系数表
面号 A B C D E F G H
S1 1.41E-03 5.56E-03 -8.18E-03 8.70E-03 -5.84E-03 2.51E-03 -6.64E-04 9.90E-05
S2 -2.12E-02 3.68E-02 -2.65E-02 8.06E-03 -1.36E-03 9.64E-04 -5.39E-04 1.20E-04
S3 -3.61E-02 6.06E-02 -4.77E-02 1.83E-02 -2.63E-03 -1.28E-04 5.07E-05 0.00E+00
S4 -2.61E-02 3.90E-02 -3.47E-02 1.80E-02 -5.55E-03 9.99E-04 -7.74E-05 0.00E+00
S5 4.25E-02 -9.72E-02 1.20E-01 -1.20E-01 8.42E-02 -4.11E-02 1.34E-02 -2.55E-03
S6 3.06E-02 -5.69E-02 5.86E-02 -5.16E-02 3.45E-02 -1.68E-02 5.64E-03 -1.10E-03
S7 8.53E-03 -3.28E-03 -1.83E-02 2.86E-02 -2.50E-02 1.35E-02 -4.56E-03 9.06E-04
S8 2.11E-02 -7.22E-02 1.20E-01 -1.24E-01 8.20E-02 -3.59E-02 1.03E-02 -1.75E-03
S9 3.79E-02 -2.03E-01 2.83E-01 -2.34E-01 1.23E-01 -4.20E-02 9.24E-03 -1.23E-03
S10 1.01E-01 -2.57E-01 2.78E-01 -1.92E-01 8.62E-02 -2.47E-02 4.32E-03 -4.10E-04
S11 1.01E-01 -2.57E-01 2.78E-01 -1.92E-01 8.62E-02 -2.47E-02 4.32E-03 -4.10E-04
S12 1.42E-02 -5.70E-02 4.76E-02 -2.23E-02 5.81E-03 -7.96E-04 4.45E-05 7.58E-07
S13 6.08E-03 -2.01E-02 8.67E-03 -2.09E-03 3.26E-04 -3.89E-05 3.86E-06 -2.60E-07
S14 1.23E-02 -1.04E-02 1.96E-03 1.76E-04 -1.26E-04 2.05E-05 -1.55E-06 5.32E-08
S15 -8.39E-02 3.45E-02 -9.13E-03 1.61E-03 -1.81E-04 1.27E-05 -5.49E-07 1.32E-08
S16 -3.70E-02 1.15E-02 -2.30E-03 2.85E-04 -2.22E-05 1.05E-06 -2.76E-08 3.53E-10
需要说明地，这8片偶次非球面镜片从外到内(也即从光圈组件向芯片的方向)依次为第一镜片、第二镜片、第三镜片、第四镜片、第五镜片、第六镜片、第七镜片和第八镜片。上述表1和表2中，S1表示第一镜片朝向光圈组件一侧的表面，S2表示第一镜片背向光圈组件一侧的表面；S3表示第二镜片朝向光圈组件一侧的表面，S4表示第二镜片背向光圈组件一侧的表面；S5表示第三镜片朝向光圈组件一侧的表面，S6表示第三镜片背向光圈组件一侧的表面；S7表示第四镜片朝向光圈组件一侧的表面，S8表示第四镜片背向光圈组件一侧的表面；S9表示第五镜片朝向光圈组件一侧的表面，S10表示第五镜片背向光圈组件一侧的表面；S11表示第六镜片朝向光圈组件一侧的表面，S12表示第六镜片背向光圈组件一侧的表面；S13表示第七镜片朝向光圈组件一侧的表面，S14表示第七镜片背向光圈组件一侧的表面；S15表示第八镜片朝向光圈组件一侧的表面，S16表示第八镜片背向光圈组件一侧的表面。
本申请实施例中，可以是通过如下非球面公式来描述这8片偶次非球面镜片的非球面表面：
Figure PCTCN2022100082-appb-000002
其中，Z是与Z轴平行的表面的垂度(Z轴与光轴一致)，c是表面的曲率(表面的曲率半径的倒数)，K是圆锥系数，r是曲率半径，A、B、C、D、E、F、G、H分别为表2中的非球面系数。这样，通过上述非球面公式也就能够计算出每一个镜片的每一侧表面的垂度。
通过8片偶次非球面镜片的组合，够矫正光线像差，使图像能够清晰地成像在芯片上，提高摄像头模组的成像质量。
本申请实施例还提供了一种电子设备，所述电子设备包括上述实施例中所述的摄像头模组。需要说明的是，该电子设备包括上述实施例中摄像头模组和光圈组件的全部技术特征，并能达到相同的技术效果，为避免重复，此处不再赘述。
可选地，电子设备包括但不限定于是手机、平板电脑、笔记本计算机、台式计算机、智能穿戴设备等。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (12)

  1. 一种光圈组件，包括：
    基座，所述基座上设有进光孔；
    驱动机构，设于所述基座上；
    第一光圈叶片，与所述驱动机构连接，所述第一光圈叶片上设有第一通孔；
    第二光圈叶片，与所述驱动机构连接，所述第二光圈叶片上设有第二通孔，且所述第一光圈叶片与所述第二光圈叶片层叠设置；
    其中，所述驱动机构用于驱动所述第一光圈叶片和所述第二光圈叶片转动，以使所述第一光圈叶片和所述第二光圈叶片在第一重叠状态和第二重叠状态之间切换；在所述第一光圈叶片和所述第二光圈叶片处于所述第一重叠状态时，所述第一通孔和所述第二通孔围合形成第一通光孔，在所述第一光圈叶片和所述第二光圈叶片处于所述第二重叠状态时，所述第一通孔和所述第二通孔围合形成第二通光孔，所述第一通光孔和所述第二通光孔与所述进光孔相通，且所述第一通光孔的孔径小于所述第二通光孔的孔径。
  2. 根据权利要求1所述的光圈组件，其中，所述光圈组件还包括设于所述基座上的活动件，所述驱动机构连接所述活动件，所述活动件连接所述第一光圈叶片和所述第二光圈叶片；
    其中，所述驱动机构用于驱动所述活动件在第一位置和第二位置之间移动，以带动所述第一光圈叶片和所述第二光圈叶片转动，在所述活动件处于所述第一位置时，所述第一光圈叶片和所述第二光圈叶片处于所述第一重叠状态，在所述活动件处于所述第二位置时，所述第一光圈叶片和所述第二光圈叶片处于所述第二重叠状态。
  3. 根据权利要求2所述的光圈组件，其中，所述驱动机构包括设于所述基座上的形变件，所述形变件的一端连接电源，另一端连接所述活动件；
    其中，所述电源用于对所述形变件通电或断电，以驱动所述形变件在第 一伸缩长度和第二伸缩长度之间切换，所述形变件伸缩长度的切换用于带动所述活动件在所述第一位置和所述第二位置之间移动；所述第一伸缩长度小于所述第二伸缩长度。
  4. 根据权利要求3所述的光圈组件，其中，所述形变件包括第一形变件和第二形变件，所述第一形变件的一端连接所述电源，所述第一形变件的另一端连接所述活动件，所述第二形变件的一端连接所述电源，所述第二形变件的另一端连接所述活动件；
    其中，所述活动件处于所述第一位置时，所述第一形变件和所述第二形变件通电且均处于所述第一伸缩长度，所述活动件处于所述第二位置时，所述第一形变件和所述第二形变件断电且均处于所述第二伸缩长度；或者，
    所述活动件处于所述第一位置时，第一目标形变件通电且处于所述第一伸缩长度，第二目标形变件断电且处于所述第二伸缩长度，所述活动件处于所述第二位置时，所述第一目标形变件断电且处于所述第二伸缩长度，所述第二目标形变件通电且处于所述第一伸缩长度，所述第一目标形变件为所述第一形变件和所述第二形变件中的一者，所述第二目标形变件为所述第一形变件和所述第二形变件中的另一者。
  5. 根据权利要求3所述的光圈组件，其中，所述驱动机构还包括复位弹片，所述复位弹片抵接所述活动件；
    其中，在所述形变件通电且所述活动件处于所述第一位置时，所述活动件推动所述复位弹片处于第三伸缩长度，在所述形变件断电的情况下，所述复位弹片推动所述活动件移动至所述第二位置，且所述复位弹片处于第四伸缩长度，所述第四伸缩长度大于所述第三伸缩长度。
  6. 根据权利要求2所述的光圈组件，其中，所述第一光圈叶片设有第一定位孔，所述第二光圈叶片设有第二定位孔，所述活动件贯穿所述第一定位孔和所述第二定位孔，所述活动件可在所述第一定位孔以及所述第二定位孔中移动，以带动所述第一光圈叶片和所述第二光圈叶片转动。
  7. 根据权利要求2所述的光圈组件，其中，所述基座包括盖板和底座， 所述活动件和所述驱动机构设于所述盖板或所述底座，且所述活动件、所述驱动机构、所述第一光圈叶片和所述第二光圈叶片位于所述盖板和所述底座之间，所述进光孔包括设于所述盖板的第一进光孔，和设于所述底座的第二进光孔，且所述第一进光孔的孔径以及所述第二进光孔的孔径大于或等于所述第二通光孔的孔径。
  8. 根据权利要求1所述的光圈组件，其中，所述第一通孔包括第一通光区域和第二通光区域，所述第一通光区域的面积大于所述第二通光区域的面积，所述第二通孔包括第三通光区域和第四通光区域，所述第三通光区域的面积大于所述第四通光区域的面积；
    其中，在所述第一光圈叶片所述第二光圈叶片处于所述第一重叠状态时，所述第二通光区域和所述第四通光区域围合形成所述第一通光孔，且所述基座覆盖所述第一通光区域和所述第三通光区域；在所述第一光圈叶片和所述第二光圈叶片处于所述第二重叠状态时，所述第一通光区域和所述第三通光区域围合形成所述第二通光孔，且所述基座覆盖所述第二通光区域和所述第四通光区域。
  9. 根据权利要求8所述的光圈组件，其中，所述第一通光区域为第一圆弧，所述第二通光区域为第二圆弧，所述第一圆弧的第一端与所述第二圆弧的第一端连接，所述第一圆弧的第二端与所述第二圆弧的第二端连接，且所述第一圆弧的半径大于所述第二圆弧的半径；
    所述第三通光区域为第三圆弧，所述第四通光区域为第四圆弧，所述第三圆弧的第一端与所述第四圆弧的第一端连接，所述第三圆弧的第二端与所述第四圆弧的第二端连接，且所述第三圆弧的半径与所述第一圆弧的半径相等，所述第四圆弧的半径与所述第二圆弧的半径相等。
  10. 一种摄像头模组，包括镜筒、成像镜片组、芯片及如权利要求1-9中任一项所述的光圈组件，所述成像镜片组及所述芯片设于所述镜筒内，所述光圈组件设于所述镜筒的入光侧。
  11. 根据权利要求10所述的摄像头模组，其中，所述成像镜片组包括至 少六片偶次非球面镜片。
  12. 一种电子设备，所述电子设备包括如权利要求10-11中任一项所述的摄像头模组。
PCT/CN2022/100082 2021-06-25 2022-06-21 光圈组件、摄像头模组及电子设备 WO2022268069A1 (zh)

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