CN113433769A - Aperture assembly, camera module and electronic equipment - Google Patents
Aperture assembly, camera module and electronic equipment Download PDFInfo
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- CN113433769A CN113433769A CN202110710053.2A CN202110710053A CN113433769A CN 113433769 A CN113433769 A CN 113433769A CN 202110710053 A CN202110710053 A CN 202110710053A CN 113433769 A CN113433769 A CN 113433769A
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000003384 imaging method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 39
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 241000219122 Cucurbita Species 0.000 description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005426 magnetic field effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
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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
- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Diaphragms For Cameras (AREA)
Abstract
The application discloses light ring subassembly, camera module and electronic equipment belongs to electronic equipment technical field. The diaphragm assembly comprises a base, a driving mechanism, a first diaphragm page and a second diaphragm blade, wherein a light inlet is formed in the base; the driving mechanism is used for driving the first diaphragm blade and the second diaphragm blade to rotate; when the first diaphragm blade and the second diaphragm blade are in a first overlapped state, the first through hole and the second through hole are encircled to form a first light through hole, when the first diaphragm blade and the second diaphragm blade are in a second overlapped state, the first through hole and the second through hole are encircled to form a second light through hole, and the aperture of the first light through hole is smaller than that of the second light through hole. The problem that the whole thickness of electronic equipment is great because of the portrait lens in the correlation technique is solved.
Description
Technical Field
This application belongs to electronic equipment technical field, concretely relates to light ring subassembly, camera module and electronic equipment.
Background
With the popularization of electronic devices such as mobile phones in people's life, people have higher and higher requirements for taking pictures of the electronic devices. At present, in order to reach the blurring effect of highlighting the character main body of becoming more meticulous and smoothing naturally, a portrait lens is mostly set up alone on the electronic equipment, and the focal length of portrait lens is great, and this just requires that the portrait lens has the diaphragm as big as possible, and if do the diaphragm of camera lens greatly need higher camera lens height, this whole thickness that also leads to current electronic equipment is bigger, is unfavorable for electronic equipment to frivolousization development.
Disclosure of Invention
The embodiment of the application aims to provide an aperture assembly, a camera module and electronic equipment, and the problem that the whole thickness of the electronic equipment is large due to a portrait lens in the related art can be solved.
In a first aspect, an embodiment of the present application provides an aperture assembly, including:
the light source comprises a base, wherein a light inlet hole is formed in the base;
the driving mechanism is arranged on the base;
the first diaphragm blade is connected with the driving mechanism, and a first through hole is formed in the first diaphragm blade;
the second diaphragm blade is connected with the driving mechanism, a second through hole is formed in the second diaphragm blade, and the first diaphragm blade and the second diaphragm blade are arranged in a stacked mode;
the driving mechanism is used for driving the first diaphragm blade and the second diaphragm blade to rotate; to switch the first and second diaphragm blades between a first overlapping state and a second overlapping state; when the first diaphragm blade and the second diaphragm blade are in the first overlapped state, the first through hole and the second through hole are encircled to form a first light through hole, when the first diaphragm blade and the second diaphragm blade are in the second overlapped state, the first through hole and the second through hole are encircled to form a second light through hole, the first light through hole and the second light through hole are communicated with the light inlet hole, and the aperture of the first light through hole is smaller than that of the second light through hole.
In a second aspect, an embodiment of the present application further provides a camera module, including a lens barrel, an imaging lens set, a chip, and the aperture assembly of the first aspect, the imaging lens set reaches the chip is disposed in the lens barrel, and the aperture assembly is disposed on an incident light side of the lens barrel.
In a third aspect, an embodiment of the present application further provides an electronic device, including the camera module according to the second aspect.
Among the technical scheme that this application embodiment provided, rotate in driving mechanism drive first diaphragm blade and the second diaphragm blade, and then in order to switch between first logical unthreaded hole and second logical unthreaded hole, just also make the diaphragm subassembly can switch between little diaphragm and big diaphragm, thereby just can realize the portrait shooting at big diaphragm, little visual angle through a camera module to and the shooting of little diaphragm, big visual angle scope. Like this, also need not to set up extra portrait camera again alone on the basis of main camera on the electronic equipment, effectively saved electronic equipment's hardware cost and installation space, electronic equipment also need not to provide great thickness and installs the portrait camera simultaneously, is of value to electronic equipment to frivolous development.
Drawings
Fig. 1 is an exploded view of a structure of an aperture assembly according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an aperture assembly forming a first light passing hole according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an aperture assembly forming a second light passing hole according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of an aperture assembly forming a first light passing hole and not including a cover plate according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an aperture assembly forming a second light passing hole and not including a cover plate according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a base, a driving mechanism and a movable member of an aperture assembly according to an embodiment of the present disclosure;
FIG. 7 is a second schematic structural view of a base, a driving mechanism and a movable member of an aperture assembly according to an embodiment of the present disclosure;
fig. 8 is a schematic view illustrating an image formed by an aperture assembly applied to a camera module according to an embodiment of the present disclosure;
fig. 9 is a second schematic view of an aperture assembly applied to a camera module according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The embodiment of the application provides a diaphragm subassembly.
Referring to fig. 1 to 7, the aperture assembly 100 includes a base 10, a driving mechanism (not shown), a first aperture blade 40 and a second aperture blade 50, a light inlet (not shown) is disposed on the base 10, the driving mechanism is connected to the first aperture blade 40 and the second aperture blade 50, a first through hole 41 is disposed on the first aperture blade 40, a second through hole 51 is disposed on the second aperture blade 50, and the first aperture blade 40 and the second aperture blade 50 are stacked.
Wherein the driving mechanism is configured to drive the first and second diaphragm blades 40, 50 to rotate so as to switch the first and second diaphragm blades 40, 50 between the first and second overlapping states; when the first and second diaphragm blades 40, 50 are in the first overlapped state, the first and second through holes 41, 51 enclose to form a first light passing hole 101; when the first diaphragm blade 40 and the second diaphragm blade 50 are in the second overlapped state, the first through hole 41 and the second through hole 51 enclose to form a second through hole 102, the first through hole 101 and the second through hole 102 are communicated with the light inlet, and the aperture of the first through hole 101 is smaller than that of the second through hole 102.
In addition, the aperture assembly 100 provided in the embodiment of the present application is applied to a camera module, please refer to the camera module shown in fig. 8 and fig. 9, wherein the aperture assembly 100 is configured to be installed on a light incident side of a lens barrel 300 in the camera module, so that light can be incident on a lens assembly 200 in the lens barrel 300 through the aperture assembly 100, and the camera module collects and captures an image.
In the embodiment of the present application, the driving mechanism is used for driving the first diaphragm blade 40 and the second diaphragm blade 50 to rotate, so that the first diaphragm blade 40 and the second diaphragm blade 50 can form a first light passing hole 101 with a smaller aperture or a second light passing hole 102 with a larger aperture in a surrounding manner. For example, the driving mechanism may include a motor, the first aperture blade 40 and the second aperture blade 50 may be connected to a rotating shaft of the motor, and the rotation of the motor may drive the first aperture blade 40 and the second aperture blade 50 to rotate in opposite directions, respectively, so as to switch the first aperture blade 40 and the second aperture blade 50 between the first overlapping state and the second overlapping state, and thus the aperture assembly 100 may be switched between the small aperture and the large aperture, so that the large aperture and the small angle of view of portrait shooting and the small aperture and the large angle of view of portrait shooting can be realized by one camera module. Like this, also need not to set up extra portrait camera again alone on the basis of main camera on the electronic equipment, effectively saved electronic equipment's hardware cost and installation space, electronic equipment also need not to provide great thickness and installs the portrait camera simultaneously, is of value to electronic equipment to frivolous development.
Optionally, the aperture assembly 100 further includes a movable member 20 disposed on the base 10, the driving mechanism is connected to the movable member 20, and the movable member 20 is connected to the first aperture blade 40 and the second aperture blade 50; the driving mechanism is used for driving the movable element 20 to move between a first position and a second position so as to drive the first aperture blade 40 and the second aperture blade 50 to rotate, when the movable element 20 is located at the first position, the first aperture blade 40 and the second aperture blade 50 are located in a first overlapping state, and when the movable element 20 is located at the second position, the first aperture blade 40 and the second aperture blade 50 are located in a second overlapping state.
It is understood that the movable member 20 connects the first aperture blade 40 and the second aperture blade 50, and the driving mechanism is used for driving the movable member 20 to move between the first position and the second position, so that the movable member 20 drives the first aperture blade 40 and the second aperture blade 50 to rotate to realize the switching between the large aperture and the small aperture. For example, the driving mechanism may include a motor and a transmission shaft, and the movable member 20 may be screwed to the transmission shaft; when the motor rotates forward, the transmission shaft is driven to rotate forward, so as to drive the movable element 20 to move to the first position, and when the motor rotates backward, the transmission shaft is driven to rotate backward, so as to drive the movable element 20 to move to the second position. Thus, the moveable member 20 can be driven between the first position and the second position by the motor and the drive shaft. Of course, the driving mechanism may also be in other possible structural forms, and the embodiments of the present application are not limited in detail herein.
In the embodiment of the present application, the first and second diaphragm blades 40 and 50 are rotatable based on the movement of the movable element 20, and the first and second diaphragm blades 40 and 50 may be rotatable about the movable element 20. For example, during the moving of the movable member 20 to the first position, the movement of the movable member 20 may drive the first aperture blade 40 and the second aperture blade 50 to rotate so as to gradually move away from the center of the base 10. As shown in fig. 4, when the movable member 20 moves to the first position, the first diaphragm blade 40 and the second diaphragm blade 50 rotate to be in the first overlapping state, and at this time, a portion of the first through hole 41 of the first diaphragm blade 40 and a portion of the second through hole 51 of the second diaphragm blade 50 overlap to enclose and form a first light passing hole 101, and the first light passing hole 101 communicates with the light inlet hole of the base 10; at this time, when the first diaphragm blade 40 and the second diaphragm blade 50 are in the first overlapped state, the portion of the first through hole 41 where the first light passing hole 101 is not formed is shielded by the base 10, and the portion of the second through hole 51 where the first light passing hole 101 is not formed is also shielded by the base 10, so that light can only pass through the light inlet and the first light passing hole 101 to be incident on the lens assembly in the lens barrel. Please refer to fig. 4 and fig. 9, the aperture of the first light passing hole 101 is smaller, and the light entering amount of the camera module is smaller, that is, the aperture is smaller, such as the aperture F1.7, at this time, the camera module can realize a larger angle collecting range, for example, can image a scene with FOV in a range of 80 degrees (equivalent focal length of 25mm), and at this time, the camera module can be used as a main camera of the electronic device to realize shooting with a larger collecting field collecting range.
Further, the moveable member 20 is moveable from a first position to a second position. During the moving of the movable member 20 to the second position, the moving of the movable member 20 may drive the first aperture blade 40 and the second aperture blade 50 to rotate and gradually get closer to the center of the base 10. As shown in fig. 5, when the movable member 20 moves to the second position, the first aperture blade 40 and the second aperture blade 50 rotate to the second overlapping state, at this time, a portion of the first through hole 41 of the first aperture blade 40 overlaps a portion of the second through hole 51 of the second aperture blade 50 to form the second through hole 102, a portion of the first through hole 41 not forming the second through hole 102 is blocked by the base 10, and a portion of the second through hole 51 not forming the second through hole 102 is also blocked by the base 10, so that light can only be incident on the lens assembly in the lens barrel through the light inlet and the second through hole 102. Referring to fig. 5 and 8, the second light passing hole 102 has a larger aperture, and the camera module can have a larger light entering amount, that is, a larger aperture, for example, the aperture F1.4, and the camera module can be used as a portrait lens, for example, the camera module can image a portrait scene with a Field of View (FOV) of 46 ° (50 mm equivalent focal length), so as to achieve a blurring effect, and further achieve portrait shooting.
The aperture assembly 100 provided by the embodiment of the present application drives the moving member 20 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 moving member 20 to rotate, and further switch between the first light passing hole 101 and the second light passing hole 102, and thus the aperture assembly 100 can switch between the small aperture and the large aperture, and thereby the portrait shooting at the large aperture and the small viewing angle, and the shooting at the small aperture and the large viewing angle range can be realized through one camera module. Therefore, the electronic equipment does not need to provide larger thickness for installing the portrait camera, and the development of the electronic equipment towards light and thin is facilitated.
In the embodiment of the present application, the driving mechanism includes a deformation element disposed on the base 10, one end of the deformation element is connected to a power supply of the electronic device, or a power supply of the camera module alone, and the other end is connected to the moving element 20; the power supply is used for powering on or powering off the deformation piece so as to drive the deformation piece to switch between a first telescopic length and a second telescopic length, and the switching of the telescopic length of the deformation piece is used for driving the moving piece 20 to move between the first position and the second position; the first telescopic length is smaller than the second telescopic length.
Alternatively, the Shape-changing element is a structural element capable of realizing length change, for example, the Shape-changing element may be Shape Memory Alloy (SMA), or an elastic expansion element, etc. For example, the deformation element may be deformed based on a change in temperature; for example, the deformable part can have a first temperature due to heating under the condition of electrifying, and the deformable part can deform at the first temperature to have a first telescopic length; when the deformation piece is powered off, the deformation piece is cooled and has a second temperature, and the deformation piece deforms and recovers to the second telescopic length. Or, the deformation piece also can be other can be based on the device that power circular telegram or outage and take place deformation, for example the power still is connected with the electromagnetism piece, and the deformation piece can be metal spring, and the electromagnetism piece produces magnetic field under the circumstances of circular telegram, and the deformation piece compresses and deforms to first flexible length under the magnetic field effect, and when the power outage, the magnetic field of electromagnetism piece disappears, and the deformation piece does not receive the magnetic field effect and resumes to the flexible length of second this moment. Of course, the shape-changing element can also be in other possible forms, and the embodiments of the present application are not listed.
In the embodiment of the present application, the deformable member is an SMA wire for example. When the power supply is used for electrifying the SMA wire, the SMA wire can be contracted to have a first telescopic length so as to pull the movable member 20 to move from the second position to the first position, and then the movable member 20 drives the first aperture blade 40 and the second aperture blade 50 to rotate so as to form a first light through hole 101; when the power source is turned off, the SMA wire may be extended to return to the second extended length, so as to push the movable member 20 to return to the second position, and the movable member 20 may simultaneously drive the first aperture blade 40 and the second aperture blade 50 to rotate, so as to form the second light passing hole 102. In this way, the movable element 20 can be driven by powering on or powering off the SMA wire, and the aperture assembly 100 can be switched between the first light passing hole 101 and the second light passing hole 102.
Referring to fig. 4 to 7, the deformation elements include a first deformation element 311 and a second deformation element 312, one end of the first deformation element 311 is connected to a power source (not shown), the other end of the first deformation element 311 is connected to the movable element 20, one end of the second deformation element 312 is connected to the power source, and the other end of the second deformation element 312 is connected to the movable element 20. In one embodiment, as shown in fig. 6, when the movable member 20 is in the first position, the first deformation element 311 and the second deformation element 312 are energized and are both in the first telescopic length; as shown in fig. 7, when the movable member 20 is in the second position, the first deformation element 311 and the second deformation element 312 are powered off and both are in the second expansion length.
For example, the first deforming member 311 is a first SMA wire, and the second deforming member 312 is a second SMA wire. The power supply simultaneously energizes the first SMA wire and the second SMA wire, so that the first SMA wire and the second SMA wire are both contracted to have a first telescopic length, and the movable piece 20 can be pulled to move towards the direction close to the center of the base 10, so as to drive the first aperture blade 40 and the second aperture blade 50 to rotate towards the direction far away from the center of the base 10, and a first light through hole 101 is formed; when the first SMA wire and the second SMA wire are powered off, the first SMA wire and the second SMA wire may be extended to return to the second telescopic length, so as to pull the moving member 20 to move in a direction 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 passing hole 102. Wherein the center of the base 10 may be located on an extension of a line connecting the first position and the second position.
Or, in another embodiment, when the moving member 20 is in the first position, the first target deformation element is powered on and is in the first telescopic length, the second target deformation element is powered off and is in the second telescopic length, when the moving member 20 is in the second position, the first target deformation element is powered off and is in the second telescopic length, the second target deformation element is powered on and is in the first telescopic length, the first target deformation element is one of the first deformation element 311 and the second deformation element 312, and the second target deformation element is the other of the first deformation element 311 and the second deformation element 312.
For example, please refer to fig. 4 and 5, which take a first SMA wire as a first target deformation element and a second SMA wire as a second target deformation element as an example for description. The power supply may be to first SMA line circular telegram and to the outage of second SMA line, and then first SMA line shrink is in first flexible length, and can resume to the flexible length of second after the outage of second SMA line, first SMA line also can produce the pulling force to moving part 20, and second SMA line produces the thrust to moving part 20 to drive moving part 20 activity to the first position under the combined action of first SMA line and second SMA line, in order to drive first aperture blade 40 and second aperture blade 50 and rotate to be in first overlapping state. When the power supply is powered off to the first SMA wire and powered on to the second SMA wire, the first SMA wire is powered off and is restored to the second telescopic length to generate thrust to the moving member 20, the second SMA wire is powered on and contracted to be in the first telescopic length to generate tension to the moving member 20, and then the first SMA wire and the second SMA wire jointly drive the moving member 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 be in the second overlapped state. In the present embodiment, the center of the base 10 is not located on the extension of the line connecting the first position and the second position.
Optionally, the base 10 may be provided with a first SMA interface 61 and a second SMA interface 62, where the first SMA wire is connected to the power supply through the first SMA interface 61, and the second SMA wire is connected to the power supply through the second SMA interface 62.
In the embodiment of the present application, the two deformation members drive the movable member 20 to move together, so as to ensure that there is enough 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, and the aperture assembly 100 can be switched between a large aperture and a small aperture.
Optionally, the driving mechanism may further include a reset spring 32, and the reset spring 32 abuts against the movable member 20, or may be connected to the movable member 20. When the deformation element is powered on and the moving element 20 is located at the first position, the moving element 20 pushes the reset elastic sheet 32 to be located at the third telescopic length, and when the deformation element is powered off, the reset elastic sheet 32 pushes the moving element 20 to move to the second position, the reset elastic sheet 32 is located at the fourth telescopic length, and the fourth telescopic length is greater than the third telescopic length.
It can be understood that the reset spring 32 has elasticity, and the reset spring 32 can be extended and contracted to realize the length change. Referring to fig. 6 and 7, when the deformation element is powered on, the deformation element contracts to drive the movable element 20 to move to the first position, and the movement of the movable element 20 presses the reset elastic sheet 32 to compress the elastic sheet to be at the third expansion length; when the deformation piece is powered off, the deformation piece can not generate acting force on the moving part 20 at the moment, the reset elastic sheet 32 can recover the normal extension length of the reset elastic sheet based on the elastic function of the reset elastic sheet, for example, the reset elastic sheet is extended to the fourth extension length, and the extension of the reset elastic sheet 32 can also return the moving part 20 to the second position by pushing. Like this, drive moving part 20 through the circular telegram of deformation piece and remove to the first position from the second position, when the circular telegram of deformation piece, then can push moving part 20 through the shell fragment 32 that resets and remove to the second position from the first position, and then through the setting of deformation piece and the shell fragment 32 that resets to ensure that moving part 20 can remove between first position and second position, ensure that diaphragm subassembly 100 can switch between big aperture and little aperture.
In the embodiment of the present application, 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 member 20 passes through the first positioning hole 42 and the second positioning hole 52, and the movable 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. For example, the first positioning hole 42 and the second positioning hole 52 are both strip-shaped holes, the length direction of the strip-shaped holes is also the moving direction of the moving member 20, and the moving member 20 abuts against at least one of the hole wall of the first positioning hole 42 and the hole wall of the second positioning hole 52 in the moving process, so that the moving member 20 moves, and the first aperture blade 40 and the second aperture blade 50 can be pushed to rotate, and the moving member 20 can move between the first position and the second position.
Referring to fig. 1, 4 and 5, the first through hole 41 includes a first light passing area 411 and a second light passing area 412, the area of the first light passing area 411 is larger than that of the second light passing area 412, the second through hole 51 includes a third light passing area 511 and a fourth light passing area 512, and the area of the third light passing area 511 is larger than that of the fourth light passing area 512; when the first diaphragm blade 40 and the second diaphragm blade 50 are in the first overlapped state, the fourth light passing region 512 and the second light passing region 412 enclose the first light passing hole 101 (as shown in fig. 4), and the base 10 covers the third light passing region 511 and the first light passing region 411; when the first diaphragm blade 40 and the second diaphragm blade 50 are in the second overlapped state, the third light passing region 511 and the first light passing region 411 form the second light passing hole 102 in a surrounding manner (as shown in fig. 5), and the base 10 covers the fourth light passing region 512 and the second light passing region 412. Thus, the aperture assembly 100 can be switched between the large aperture and the small aperture, so that the switching of the image acquisition visual angle of the camera module can be realized, and different shooting modes of the camera module can be realized.
Optionally, the first light-passing area 411 is a first circular arc, the second light-passing area 412 is a second circular arc, a first end of the first circular arc is connected with a first end of the second circular arc, a second end of the first circular arc is connected with a second end of the second circular arc, and a radius of the first circular arc is larger than a radius of the second circular arc; the third light passing area 511 is a third arc, the fourth light passing area 512 is a fourth arc, a first end of the third arc is connected with a first end of the fourth arc, a second end of the third arc is connected with a second end of the fourth arc, the radius of the third arc is equal to that of the first arc, and the radius of the fourth arc is equal to that of the second arc. As shown in fig. 1, the first arc and the second arc are connected end to form a first through hole 41 similar to a gourd shape, and the third arc and the fourth arc are connected end to form a second through hole 51 similar to a gourd shape. The third circular arc and the first circular arc have the same radius, so that the second light through hole 102 can be formed in a surrounding manner, and the second circular arc and the fourth circular arc have the same radius, so that the first light through hole 101 can be formed in a surrounding manner.
In the embodiment of the present application, the base 10 includes a cover plate 11 and a base 12, the movable element 20 and the driving mechanism are disposed on the cover plate 11 or the base 12, and the movable element 20, the driving mechanism, the first aperture blade 40 and the second aperture blade 50 are disposed between the cover plate 11 and the base 12, the cover plate 11 is provided with a first light inlet 111, and the base 12 is provided with a second light inlet 121 opposite to the first light inlet 111.
Optionally, the moveable member 20 and the drive mechanism are both disposed on the base 12. When the first diaphragm blade 40 and the second diaphragm blade 50 are in the first overlapped state, the first light passing area 411 and the second light passing area 412 enclose to form the first light passing hole 101, and the cover plate 11 covers the third light passing area 511 and the fourth light passing area 512 to ensure that light can only be incident on the lens from the first light entering hole 111, the first light passing hole 101 and the second light entering hole 121; when the first diaphragm blade 40 and the second diaphragm blade 50 are in the second overlapped state, the third light passing region 511 and the fourth light passing region 512 enclose to form the second light passing hole 102, and the cover plate 11 covers the first light passing region 411 and the second light passing region 412 to ensure that light can only be incident on the lens from the first light entering hole 111, the second light passing hole 102 and the second light entering hole 121.
The aperture of the first light inlet 111 and the aperture of the second light inlet 121 are both greater than or equal to the aperture of the second light through hole 102, so as to ensure the maximum incident range of the light, i.e. the aperture of the second light through hole 102. Preferably, the aperture of the first light inlet 111 and the aperture of the second light inlet 121 are both equal to the aperture of the second light passing hole 102.
Optionally, the aperture of the first light inlet 111 is the same as the aperture of the second light inlet 121, or the aperture of the first light inlet 111 is smaller than the aperture of the second light inlet 121, so as to ensure that the cover plate 11 shields the region outside the first light through hole 101 or the second light through hole 102, and ensure that the light incident area of the aperture assembly 100 can only be the area of the first light through hole 101 or the area of the second light through hole 102.
The embodiment of the application also provides a camera module.
Referring to fig. 8 and 9, the camera module includes a lens barrel 300, an imaging lens group 200, a chip 400 and the aperture assembly 100 as described in the above embodiments, the imaging lens group 200 and the chip 400 are disposed in the lens barrel 300, and the aperture assembly 100 is disposed on the light incident side of the lens barrel 300.
When the camera module is used as a portrait lens to shoot a portrait, please refer to fig. 8, at this time, the aperture assembly 100 forms a large aperture with a large aperture, and the camera module can image a portrait scene in a large field angle range, so as to achieve a blurring effect, and further achieve portrait shooting. When the camera module needs to be used as a main camera, please refer to fig. 9, at this time, the aperture assembly 100 forms a small aperture with a small aperture, and at this time, the camera module can realize image acquisition with a large view field, and realize imaging with a large view angle, thereby realizing main shooting. The aperture switching and the principle of the aperture assembly 100 can be described in detail with reference to the above embodiments of the aperture assembly, and are not described herein again.
It should be noted that the camera module includes all the technical features of the aperture assembly 100 in the above embodiments, so that all the technical solutions of the above embodiments of the aperture assembly can be implemented, and the same technical effects can be achieved.
Optionally, an infrared filter 500 is further disposed between the imaging lens set 200 and the chip 400, and the infrared filter 500 may be made of a glass sheet plated with an infrared reflective film to filter out infrared rays and ensure the imaging quality of the camera module.
In the embodiment of the present application, the imaging lens assembly 200 includes at least six even aspheric lenses, and can correct the light aberration, so that the image can be clearly imaged on the chip 400, thereby improving the imaging quality of the camera module.
In one embodiment, the imaging lens set 200 includes 8 even aspheric lens elements, and the surface design coefficients of the 8 even aspheric lens elements are shown in tables 1 and 2 below.
TABLE 1 lens parameter table
TABLE 2 aspheric surface coefficient table of lens
The 8 even aspheric lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from outside to inside (i.e. from the aperture assembly to the chip). In table 1 and table 2, S1 represents the surface of the first lens facing the aperture assembly, and S2 represents the surface of the first lens facing away from the aperture assembly; s3 represents the surface of the second lens facing the diaphragm assembly side, S4 represents the surface of the second lens facing away from the diaphragm assembly side; s5 represents the surface of the third lens facing the diaphragm assembly side, S6 represents the surface of the third lens facing away from the diaphragm assembly side; s7 represents the surface of the fourth lens facing the diaphragm assembly side, S8 represents the surface of the fourth lens facing away from the diaphragm assembly side; s9 represents the surface of the fifth lens facing the diaphragm assembly side, S10 represents the surface of the fifth lens facing away from the diaphragm assembly side; s11 represents the surface of the sixth lens facing the diaphragm assembly side, S12 represents the surface of the sixth lens facing away from the diaphragm assembly side; s13 represents the surface of the seventh lens facing the diaphragm assembly side, S14 represents the surface of the seventh lens facing away from the diaphragm assembly side; s15 represents the surface of the eighth lens facing the diaphragm assembly, and S16 represents the surface of the eighth lens facing away from the diaphragm assembly.
In the embodiment of the present application, the aspheric surfaces of the 8 even-order aspheric lenses may be described by the following aspheric formula:
where Z is the sag of the surface parallel to the Z axis (the Z axis coincides with the optical axis), c is the curvature of the surface (the reciprocal of the radius of curvature of the surface), K is a conic coefficient, r is the radius of curvature, and A, B, C, D, E, F, G, H are the aspherical coefficients in table 2, respectively. Thus, the sag of each side surface of each lens can be calculated by the above aspheric surface formula.
Through the combination of 8 even aspheric lens, correct the light aberration enough, make the image can clearly form images on the chip, improve the imaging quality of camera module.
The embodiment of the application also provides electronic equipment, and the electronic equipment comprises the camera module in the 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 effects, and in order to avoid repetition, the details are not repeated here.
Optionally, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a desktop computer, a smart wearable device, and the like.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. An aperture assembly, comprising:
the light source comprises a base, wherein a light inlet hole is formed in the base;
the driving mechanism is arranged on the base;
the first diaphragm blade is connected with the driving mechanism, and a first through hole is formed in the first diaphragm blade;
the second diaphragm blade is connected with the driving mechanism, a second through hole is formed in the second diaphragm blade, and the first diaphragm blade and the second diaphragm blade are arranged in a stacked mode;
wherein the driving mechanism is used for driving the first diaphragm blade and the second diaphragm blade to rotate so as to switch the first diaphragm blade and the second diaphragm blade between a first overlapping state and a second overlapping state; when the first diaphragm blade and the second diaphragm blade are in the first overlapped state, the first through hole and the second through hole are encircled to form a first light through hole, when the first diaphragm blade and the second diaphragm blade are in the second overlapped state, the first through hole and the second through hole are encircled to form a second light through hole, the first light through hole and the second light through hole are communicated with the light inlet hole, and the aperture of the first light through hole is smaller than that of the second light through hole.
2. The aperture assembly of claim 1, further comprising a movable member disposed on the base, wherein the driving mechanism is connected to the movable member, and wherein the movable member is connected to the first aperture blade and the second aperture blade;
the driving mechanism is used for driving the movable member to move between a first position and a second position so as to drive the first aperture blade and the second aperture blade to rotate, when the movable member is located at the first position, the first aperture blade and the second aperture blade are located at the first overlapping state, and when the movable member is located at the second position, the first aperture blade and the second aperture blade are located at the second overlapping state.
3. The diaphragm assembly of claim 2, wherein the driving mechanism comprises a deformation element disposed on the base, one end of the deformation element is connected to a power source, and the other end of the deformation element is connected to the movable element;
the power supply is used for powering on or powering off the deformation piece so as to drive the deformation piece to switch between a first telescopic length and a second telescopic length, and the switching of the telescopic length of the deformation piece is used for driving the movable piece to move between the first position and the second position; the first telescopic length is smaller than the second telescopic length.
4. The diaphragm assembly of claim 3, wherein the deformation element comprises a first deformation element and a second deformation element, one end of the first deformation element is connected to the power source, the other end of the first deformation element is connected to the movable element, one end of the second deformation element is connected to the power source, and the other end of the second deformation element is connected to the movable element;
when the movable piece is located at the first position, the first deformation piece and the second deformation piece are electrified and are both located at the first telescopic length, and when the movable piece is located at the second position, the first deformation piece and the second deformation piece are powered off and are both located at the second telescopic length; or,
when the moving part is located in the first position, a first target deformation piece is powered on and located in the first telescopic length, a second target deformation piece is powered off and located in the second telescopic length, when the moving part is located in the second position, the first target deformation piece is powered off and located in the second telescopic length, the second target deformation piece is powered on and located in the first telescopic length, the first target deformation piece is one of the first deformation piece and the second deformation piece, and the second target deformation piece is the other of the first deformation piece and the second deformation piece.
5. The aperture assembly of claim 3, wherein the drive mechanism further comprises a reset spring, the reset spring abutting the movable member;
when the deformation piece is powered on and the moving piece is located at the first position, the moving piece pushes the reset elastic piece to be located at a third telescopic length, and under the condition that the deformation piece is powered off, the reset elastic piece pushes the moving piece to move to the second position and is located at a fourth telescopic length, and the fourth telescopic length is greater than the third telescopic length.
6. The aperture assembly as claimed in claim 2, wherein the first aperture blade is provided with a first positioning hole, the second aperture blade is provided with a second positioning hole, and the movable member extends through the first positioning hole and the second positioning hole, and is movable in the first positioning hole and the second positioning hole to rotate the first aperture blade and the second aperture blade.
7. The aperture assembly as claimed in claim 2, wherein the base comprises a cover plate and a base, the movable member and the driving mechanism are disposed on the cover plate or the base, and the movable member, the driving mechanism, the first aperture blade and the second aperture blade are disposed between the cover plate and the base, the light inlets include a first light inlet disposed on the cover plate and a second light inlet disposed on the base, and the aperture of the first light inlet and the aperture of the second light inlet are greater than or equal to the aperture of the second light outlet.
8. The diaphragm assembly according to claim 1, wherein the first through hole includes a first light passing area and a second light passing area, an area of the first light passing area is larger than an area of the second light passing area, the second through hole includes a third light passing area and a fourth light passing area, and an area of the third light passing area is larger than an area of the fourth light passing area;
when the first diaphragm blade and the second diaphragm blade are in the first overlapped state, the second light passing region and the fourth light passing region enclose to form the first light passing hole, and the base covers the first light passing region and the third light passing region; when the first diaphragm blade and the second diaphragm blade are in the second overlapped state, the first light transmission region and the third light transmission region are enclosed to form the second light transmission hole, and the base covers the second light transmission region and the fourth light transmission region.
9. The diaphragm assembly of claim 8, wherein the first light passing area is a first circular arc, the second light passing area is a second circular arc, a first end of the first circular arc is connected with a first end of the second circular arc, a second end of the first circular arc is connected with a second end of the second circular arc, and a radius of the first circular arc is larger than a radius of the second circular arc;
the third light passing area is a third circular arc, the fourth light passing area is a fourth circular arc, a first end of the third circular arc is connected with a first end of the fourth circular arc, a second end of the third circular arc is connected with a second end of the fourth circular arc, the radius of the third circular arc is equal to that of the first circular arc, and the radius of the fourth circular arc is equal to that of the second circular arc.
10. A camera module, comprising a lens barrel, an imaging lens set, a chip and the aperture assembly of any one of claims 1 to 9, wherein the imaging lens set and the chip are disposed in the lens barrel, and the aperture assembly is disposed on the light incident side of the lens barrel.
11. The camera module of claim 10, wherein the imaging lens assembly includes at least six even aspheric lenses.
12. An electronic device, characterized in that the electronic device comprises a camera module according to any of claims 10-11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110710053.2A CN113433769A (en) | 2021-06-25 | 2021-06-25 | Aperture assembly, camera module and electronic equipment |
| PCT/CN2022/100082 WO2022268069A1 (en) | 2021-06-25 | 2022-06-21 | Aperture assembly, camera module, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110710053.2A CN113433769A (en) | 2021-06-25 | 2021-06-25 | Aperture assembly, camera module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113433769A true CN113433769A (en) | 2021-09-24 |
Family
ID=77754419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110710053.2A Pending CN113433769A (en) | 2021-06-25 | 2021-06-25 | Aperture assembly, camera module and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113433769A (en) |
| WO (1) | WO2022268069A1 (en) |
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| CN113867075A (en) * | 2021-10-27 | 2021-12-31 | 维沃移动通信有限公司 | Aperture module, camera module and electronic equipment |
| CN114025069A (en) * | 2021-11-10 | 2022-02-08 | 维沃移动通信有限公司 | Aperture assembly, camera module and electronic equipment |
| WO2022268069A1 (en) * | 2021-06-25 | 2022-12-29 | 维沃移动通信（杭州）有限公司 | Aperture assembly, camera module, and electronic device |
| WO2024002151A1 (en) * | 2022-06-29 | 2024-01-04 | 维沃移动通信有限公司 | Camera module and electronic device |
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| WO2022268069A1 (en) | 2022-12-29 |
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