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WO2023098660A1 - 成像组件及电子设备 - Google Patents

成像组件及电子设备 Download PDF

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Publication number
WO2023098660A1
WO2023098660A1 PCT/CN2022/135035 CN2022135035W WO2023098660A1 WO 2023098660 A1 WO2023098660 A1 WO 2023098660A1 CN 2022135035 W CN2022135035 W CN 2022135035W WO 2023098660 A1 WO2023098660 A1 WO 2023098660A1
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WO
WIPO (PCT)
Prior art keywords
piezoelectric
lens group
base
limiter
electrode layer
Prior art date
Application number
PCT/CN2022/135035
Other languages
English (en)
French (fr)
Inventor
肖青
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023098660A1 publication Critical patent/WO2023098660A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • 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

Definitions

  • the present disclosure relates to the technical field of electronic equipment, and in particular, to an electronic equipment and a SAR detection component.
  • imaging components In order to meet this requirement, in electronic equipment such as mobile phones, imaging components often have an auto-focus function. In order to achieve autofocus, the lens group in the imaging component can slide. The slidable lens assembly tends to generate abnormal noise when the electronic device is in use.
  • the purpose of the present disclosure is to provide an imaging component and an electronic device, thereby solving one or more problems caused by defects in related technologies at least to a certain extent.
  • an imaging assembly comprising:
  • the lens group is arranged on the base, and the lens group can move relative to the base;
  • a piezoelectric limiter the piezoelectric limiter is arranged on the base, the piezoelectric limiter includes a first state and a second state, when the piezoelectric limiter is in the first state, the The piezoelectric limiter is in contact with the lens group, and when the piezoelectric limiter is in the second state, the piezoelectric limiter is not in contact with the lens group.
  • imaging component comprising:
  • the lens group is arranged on the base, and the lens group can move relative to the base;
  • a piezoelectric limiter the piezoelectric limiter is arranged on the lens group, the piezoelectric limiter includes a first state and a second state, when the piezoelectric limiter is in the first state, The piezoelectric limiting element limits the lens group, and when the piezoelectric limiting element is in the second state, the piezoelectric limiting element releases the limiting of the lens group.
  • an electronic device includes the above-mentioned imaging component.
  • FIG. 1 is a schematic diagram of a first imaging component provided by an exemplary embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a second imaging component provided by an exemplary embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a third imaging component provided by an exemplary embodiment of the present disclosure.
  • FIG. 4 is an exploded schematic diagram of an imaging component provided by an exemplary embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a fourth imaging component provided by an exemplary embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a fifth imaging component provided by an exemplary embodiment of the present disclosure.
  • Fig. 7 is a schematic diagram of a piezoelectric limiter provided by an exemplary embodiment of the present disclosure.
  • Fig. 8 is a schematic diagram of a piezoelectric body provided by an exemplary embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a sixth imaging component provided by an exemplary embodiment of the present disclosure.
  • Fig. 10 is a schematic diagram of an electronic device provided by an exemplary embodiment of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
  • the same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
  • Imaging components for collecting image information (for example, taking radio frequency or photos).
  • image information for example, taking radio frequency or photos.
  • the imaging component of the electronic device has an auto-focus function, that is, the lens group in the imaging component can move.
  • the motor drives the lens group to move during autofocus, and the lens group has a certain degree of freedom when not taking pictures.
  • the lens group is likely to collide with other components in the electronic device to generate abnormal noise. This type of abnormal noise is likely to cause the user to misunderstand that there is a quality problem in the electronic device and reduce the user experience.
  • the lens group collides with other components of the electronic equipment, it is easy to generate dust and foreign matter. The dust and foreign matter fall into the lens group or other imaging areas, which will cause black spots or black spots on the image and affect the imaging quality.
  • An exemplary embodiment of the present disclosure firstly provides an imaging assembly 10, as shown in FIG.
  • the group 120 can move relative to the base 110; the piezoelectric limiter 130 is arranged on the base 110, the piezoelectric limiter 130 includes a first state and a second state, when the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130
  • the limiting member 130 is in contact with the lens group 120 to prevent the lens group 120 from moving relative to the base 110 .
  • the piezoelectric limiting member 130 is in the second state, the piezoelectric limiting member 130 is not in contact with the lens group 120 .
  • the piezoelectric limiter 130 is provided between the base 110 and the lens group 120.
  • the piezoelectric limiter 130 includes a first state and a second state.
  • the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from moving relative to the base 110, which solves the problem of abnormal noise in electronic equipment;
  • the piezoelectric limiter 130 is in the first state In the second state, the lens group 120 can move relative to the base 110 , that is, the piezoelectric limiter 130 does not affect the movement of the lens group 120 during autofocus, and autofocus can be realized.
  • it avoids the problem of dust and foreign matters affecting the imaging quality due to the collision of the lens group 120 and the base 110 and other components, and improves the imaging quality of the electronic equipment.
  • the imaging assembly 10 may further include a prism 140 and an image sensor 150, the prism 140 is connected to the base 110, the prism 140 can rotate relative to the base 110, and the prism 140 Located on the light-incoming side of the lens group 120 ; the image sensor 150 is disposed on the light-emitting side of the lens group 120 .
  • the prism 140 is located at one end of the base 110 , and the image sensor 150 is located at the other end of the base 110 .
  • a predetermined space is provided on the base 110, and the lens group 120 moves within the predetermined space.
  • the prism 140 can be rotatably connected with the base 110 , and the prism 140 can rotate relative to the base 110 to achieve optical anti-shake.
  • the lens group 120 on the base 110 can reciprocate linearly in a preset direction to realize automatic focusing.
  • the base 110 is used to install components such as a prism 140 , a lens group 120 , an image sensor 150 , and a piezoelectric limiter 130 .
  • the base 110 may be provided with a first installation part, a second installation part and a third installation part, the first installation part is used to install the prism 140, the second installation part is used to install the lens group 120, and the third installation part is used to install the image Sensor 150.
  • the first mounting portion is disposed at one end of the base 110
  • the third mounting portion is disposed at the other end of the base 110 .
  • the second installation part is a cavity inside the base 110 , and the size of the second installation part in the moving direction of the lens group 120 is larger than the size of the lens group 120 in the moving direction thereof.
  • the base 110 may be a rectangular frame structure, and the base 110 may include a first board, a second board, a third board and a fourth board connected end to end.
  • the prism 140 may be located on a side of the first board away from the third board, the image sensor 150 is located on a side of the third board away from the first board, and the lens group 120 is disposed between the first board and the third board.
  • connection mode of the first board, the second board, the third board and the fourth board can be welding, bolt connection or adhesive connection, etc., or the first board, the second board, the third board and the fourth board can also be It is an integral structure, for example, the base 110 can be integrally formed by casting, injection molding or machining.
  • a first through hole may be disposed on the first plate, and the first through hole is used to allow light reflected by the prism 140 to enter the lens group 120 .
  • a second through hole is provided on the third plate, and the second through hole is used for the light in the lens group 120 to enter the image sensor 150 .
  • the first through hole and the second through hole may be rectangular holes or circular holes or the like.
  • a guiding structure may be disposed on the base 110 , and the guiding structure is disposed along the moving direction of the lens group 120 .
  • the guide mechanism may be provided on the second board or the fourth board, or guide structures may be provided on both the second board and the fourth board.
  • the guiding structure can be a linear chute or a linear guide rail.
  • the material of the base 110 may be plastic, rubber, aluminum alloy or stainless steel.
  • an insulating material layer may be provided on the surface of the base 110 .
  • the lens group 120 is slidably connected to the base 110, and the lens group 120 can move along a first direction relative to the base 110, the base 110 has a side plate 111 arranged along the first direction, and the piezoelectric limiter 130 is set On the side of the side plate 111 facing the lens group 120 .
  • the side plate 111 disposed along the first direction of the base 110 may be the second plate or the fourth plate.
  • the piezoelectric limiter 130 may be disposed on one of the second plate or the fourth plate, or the piezoelectric limiter 130 may be disposed on both the second plate and the fourth plate.
  • the electrical limiter 130 is disposed on the inner wall of the lens barrel 112 .
  • a plurality of piezoelectric stoppers 130 may be arranged on the inner wall of the lens barrel 112 along the circumference, and correspondingly, a stopper groove 123 may be provided on the lens group 120 . That is, the imaging assembly provided by the embodiment of the present disclosure may be used for periscope imaging, and the imaging assembly may also be used for direct imaging, which is not specifically limited in the embodiment of the present disclosure.
  • the lens group 120 may include one or more lenses 121 and a lens holder 122 , and the one or more lenses 121 are mounted on the lens holder 122 .
  • the lens holder 122 may be in a cylindrical structure, and the lens holder 122 is provided with a mounting through hole, which runs through the first direction, and one or more lenses 121 are disposed in the mounting through hole.
  • the lens may be a circular lens, and in this case, the installation through hole on the lens holder 122 is a circular through hole.
  • the lens may also be a lens of other shapes, for example, the lens is an elliptical lens, and correspondingly, the installation through hole may also be an elliptical hole, which is not specifically limited in this embodiment of the present disclosure.
  • the number of lenses in the lens group 120 can be 1, 2, 3, 4 or 5, etc.
  • the multiple lenses may be any combination of plane mirrors, concave mirrors or convex mirrors.
  • the number of lenses in the lens group 120 may be three.
  • the lens group 120 includes a first lens, a second lens and a third lens, the first lens, the second lens and the third lens are sequentially arranged on the lens holder 122 , and the first lens is close to the prism 140 .
  • the first lens has a convex surface, and the convex surface faces the prism 140; the second lens is arranged on the side of the first lens away from the prism 140, and the second lens has a concave surface near the first lens; the third lens is arranged on the second lens away from the first lens.
  • One side of the first lens and the third lens are both aspherical surfaces; the side of the third lens close to the second lens has a concave surface at the optical axis, and the side of the third lens close to the image sensor 150 has a convex surface at the optical axis.
  • the first lens is convex toward the prism 140 at the optical axis and has positive optical power.
  • a side of the second lens close to the first lens has a concave surface at the optical axis, and has a negative power.
  • the third lens has a concave surface facing the second lens side near the optical axis and has negative power. Spherical chromatic aberration, field curvature and distortion are well corrected.
  • the lenses in the lens group 120 may be plastic lenses, resin lenses or glass lenses.
  • the materials of the multiple lenses can be the same, or the materials of the multiple lenses can be different.
  • the lens group 120 can be a combination of glass lenses and resin lenses.
  • the imaging assembly 10 provided in the embodiment of the present disclosure may further include a focus motor, the focus motor is disposed on the base 110 , and the focus motor is used to drive the lens group 120 to move along the first direction to achieve auto-focus.
  • the focus motor may be a voice coil motor.
  • the piezoelectric limiter 130 is arranged on the base 110, and the piezoelectric limiter 130 includes a first state and a second state. When the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 performs an operation on the lens group 120. The position is limited to prevent the lens group 120 from moving relative to the base 110 , and when the piezoelectric limiter 130 is in the second state, the lens group 120 can move relative to the base 110 .
  • the first state may be an expanded state
  • the second state may be a contracted state.
  • a positive electric signal is applied to the piezoelectric limiting member 130
  • the piezoelectric limiting member 130 expands, and the expanded piezoelectric limiting member 130 abuts against the lens group 120 to limit the lens group 120 .
  • a reverse electric signal is applied to the limiter, the piezoelectric limiter 130 contracts, and the contracted piezoelectric limiter 130 releases the limit to the lens group 120, and the lens group 120 can move freely.
  • the piezoelectric limiting element 130 When the piezoelectric limiting element 130 expands, the piezoelectric limiting element 130 is in contact with the base 110 .
  • the lens group 120 can be limited by the friction force between the piezoelectric limiter 130 and the base 110 .
  • the expanded piezoelectric limiting member 130 may at least partially extend into the limiting groove on the base to limit the lens group 120 .
  • the piezoelectric limiter 130 can be arranged on the side of the side plate 111 of the base 110 facing the lens group 120. Correspondingly, a limiting groove is provided on the side of the lens group 120 facing the side plate 111. When the piezoelectric limiter 130 is in the In the first state, the piezoelectric limiting member 130 is at least partially located in the limiting groove.
  • the piezoelectric limiter 130 When the imaging component 10 is in the autofocus process, the piezoelectric limiter 130 is in the second state, that is, the piezoelectric limiter 130 receives a reverse electrical signal, the piezoelectric limiter 130 shrinks, and the lens group 120 is in a free state , the focus motor drives the lens group 120 to automatically focus.
  • the piezoelectric limiter 130 When the imaging component 10 is not working, the piezoelectric limiter 130 is in the second state, that is, the piezoelectric limiter 130 receives a positive electrical signal, the piezoelectric limiter 130 expands, and the lens group 120 is locked and cannot move .
  • the piezoelectric limiter 130 includes: a piezoelectric controller 131 and a piezoelectric body 132, the piezoelectric controller 131 is located on the base 110; the piezoelectric body 132 is connected to the piezoelectric controller 131, and the piezoelectric body 132 is switched between a first state and a second state in response to a power signal output by piezoelectric controller 131 .
  • the piezoelectric controller 131 may be embedded in the base 110 , and the piezoelectric body 132 is disposed on a side of the piezoelectric controller 131 away from the base 110 .
  • the piezoelectric controller 131 is electrically connected to the piezoelectric body 132 , and the piezoelectric controller 131 provides a power signal to the piezoelectric body 132 .
  • the piezoelectric controller 131 includes a shell and a control circuit, the shell is connected to the base 110 ;
  • the piezoelectric controller 131 may also include a circuit board, the circuit board is disposed in the casing, and the control circuit is disposed on the circuit board.
  • a power interface may be provided on the circuit board, and the power interface is used to connect to a power supply.
  • the power interface may be connected to a battery or a power management circuit of an electronic device.
  • the control circuit is connected to the power interface, and the control circuit can convert the power signal into a forward electric signal or a reverse electric signal.
  • the piezoelectric body 132 may include: a first electrode layer 31, a piezoelectric material layer 32 and a second electrode layer 33, the first electrode layer 31 is connected to a piezoelectric controller 131 for receiving a first power supply signal; the piezoelectric material layer 32 is arranged on one side of the first electrode layer 31; the second electrode layer 33 is arranged on the side of the piezoelectric material layer 32 away from the first electrode layer 31, and is connected with the piezoelectric controller 131 for Receive a second power signal.
  • the first electrode layer 31 is disposed on the base 110 , and the piezoelectric material layer 32 is configured such that the piezoelectric material expands when the first electrode layer 31 receives a positive signal and the second electrode layer 33 receives a negative signal.
  • the piezoelectric material expands.
  • the first electrode layer 31 and the second electrode layer 33 are respectively connected to the control circuit, the first electrode layer 31 receives the first power signal from the control circuit, and the second electrode layer 33 receives the second power signal from the control circuit.
  • the first power signal is a positive signal
  • the second power signal is a negative signal
  • the first power signal is a negative signal
  • the second power signal is a positive signal.
  • the material of the first electrode layer 31 is a conductive material, for example, the first electrode material may be one or more of aluminum, copper, silver, aluminum alloy, stainless steel, indium tin oxide, titanium alloy and aluminum magnesium alloy.
  • the material of the second electrode layer 33 is a conductive material.
  • the second electrode material may be one or more of aluminum, copper, silver, aluminum alloy, stainless steel, indium tin oxide, titanium alloy, and aluminum-magnesium alloy. Materials of the first conductive layer and the second conductive layer may be the same or different.
  • an insulating film may be provided on the side of the first electrode layer 31 away from the piezoelectric material layer 32 to achieve insulation between the first electrode layer 31 and the base 110 .
  • An insulating film is provided on a side of the second electrode layer 33 away from the piezoelectric material layer 32 to realize insulation between the second electrode layer 33 and the lens group 120 .
  • the piezoelectric material layer 32 is made of a piezoelectric material that has a piezoelectric effect and an inverse piezoelectric effect.
  • a piezoelectric material When pressure is applied to a piezoelectric material, it will generate a potential difference, which is called the positive piezoelectric effect; when a voltage is applied to the piezoelectric material, it will generate mechanical stress, which is called the inverse piezoelectric effect.
  • the piezoelectric material When the piezoelectric material is subjected to an external force in a fixed direction, electric polarization occurs inside, and charges of opposite signs are generated on two surfaces at the same time; when the external force is removed, the material returns to an uncharged state; when the external force When the direction of action changes, the polarity of the charge also changes; the amount of charge generated by the force on the material is proportional to the magnitude of the external force.
  • an electric field is applied to a piezoelectric material, mechanical deformation occurs in certain directions of the material, and the amount of deformation is proportional to the strength of the external electric field. This phenomenon is called the inverse piezoelectric effect.
  • the stress deformation of piezoelectric materials has five basic forms: thickness deformation type, length deformation type, volume deformation type, thickness shear type, and plane shear type. For example, quartz crystals have good thickness deformation and length deformation piezoelectric effects.
  • the piezoelectric material can be an inorganic piezoelectric material or an organic piezoelectric material.
  • the inorganic piezoelectric material can include piezoelectric crystals and piezoelectric ceramics.
  • a piezoelectric crystal refers to a piezoelectric single crystal;
  • a piezoelectric ceramic refers to a piezoelectric polycrystal.
  • Piezoelectric ceramics refer to polycrystals that are formed by mixing, molding, and sintering at high temperature with the raw materials of the necessary components, and the fine grains obtained by the solid-state reaction between powder particles and the sintering process are randomly assembled. Piezoelectric ceramics are called piezoelectric ceramics.
  • piezoelectric materials are also called piezoelectric polymers, such as polyvinylidene fluoride, vinylidene fluoride-trifluoroethylene copolymer, vinylidene dicyanide-vinyl acetate alternating copolymer, etc.
  • a guide part 133 may be provided on the piezoelectric body 132, The guiding portion 133 is disposed on a side of the piezoelectric body 132 facing the lens group 120 .
  • the cross-sectional area of the guide part 133 gradually decreases along the direction from the side plate to the lens group 120, that is, the guide part 133 is gradually changing. into the groove on the lens group 120.
  • the guiding portion 133 can be formed by the second electrode layer 33 , for example, the second electrode layer 33 can be bent to form the guiding portion 133 .
  • the guide portion 133 may be a structure independently provided on the side of the second electrode layer 33 away from the piezoelectric material layer 32 .
  • the prism 140 is connected to the base 110 , the prism 140 can rotate relative to the base 110 , and the prism 140 is located on the light-incoming side of the lens group 120 .
  • the prism 140 is used to change the propagation direction of light, so that the imaging component 10 can be used for periscope imaging.
  • the prism 140 has a reflective surface, and the reflective surface reflects incident light to the lens group 120 .
  • the prism 140 may be a triangular prism 140 and the prism 140 is a rectangular triangular prism 140 .
  • the surface where a right-angled side of the right-angled prism 140 is located is opposite to the light inlet on the electronic device, and the surface where the other right-angled side of the right-angled prism is located It is opposite to the lens group 120 .
  • the imaging assembly 10 may further include an anti-shake motor and a prism seat 141 , the prism seat 141 is arranged on the base 110 , and the prism 140 is connected to the prism seat 141 .
  • the anti-shake motor is connected to the prism 140, and the anti-shake motor drives the prism 140 to rotate.
  • the image sensor 150 is disposed on the light emitting side of the lens group 120 .
  • the image sensor can be a CCD sensor or a CMOS sensor.
  • the sensor includes photodiodes distributed in an array, an output circuit layer and a substrate, the photodiodes are connected to the output circuit, and the photodiodes and the output circuit are packaged on the substrate.
  • the photodiode is used to convert the optical signal into an electrical signal, and the output circuit is used to output the electrical signal.
  • the imaging assembly provided by the embodiment of the present disclosure may further include an encapsulation housing 160, the encapsulation housing 160 covers the base 110, the encapsulation housing 160 is used to form an accommodating cavity with the base 110, and the lens group 120 is disposed in the accommodating cavity .
  • the piezoelectric limiter 130 is provided between the base 110 and the lens group 120.
  • the piezoelectric limiter 130 includes a first state and a second state.
  • the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from moving relative to the base 110, which solves the problem of abnormal noise in electronic equipment;
  • the piezoelectric limiter 130 is in the first state In the second state, the lens group 120 can move relative to the base 110 , that is, the piezoelectric limiter 130 does not affect the movement of the lens group 120 during autofocus, and autofocus can be realized.
  • it avoids the problem of dust and foreign matters affecting the imaging quality due to the collision of the lens group 120 and the base 110 and other components, and improves the imaging quality of the electronic equipment.
  • the exemplary embodiment of the present disclosure also provides another imaging assembly 10.
  • the group 120 can move relative to the base 110; the piezoelectric limiter 130 is arranged on the lens group 120, the piezoelectric limiter 130 includes a first state and a second state, when the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 The electric limiter 130 limits the lens group 120 to prevent the lens group 120 from moving relative to the base 110 .
  • the piezoelectric limiter 130 is in the second state, the lens group 120 can move relative to the base 110 .
  • the imaging assembly 10 may further include a prism 140 and an image sensor 150, the prism 140 is connected to the base 110, the prism 140 can rotate relative to the base 110, and the prism 140 is located on the light-incoming side of the lens group 120;
  • the image sensor 150 is disposed on the light emitting side of the lens group 120 .
  • the prism 140 is located at one end of the base 110 , and the image sensor 150 is located at the other end of the base 110 .
  • a predetermined space is provided on the base 110, and the lens group 120 moves within the predetermined space.
  • the prism 140 can be rotatably connected with the base 110 , and the prism 140 can rotate relative to the base 110 to achieve optical anti-shake.
  • the lens group 120 on the base 110 can reciprocate linearly in a preset direction to realize automatic focusing.
  • the base 110 is used for installing components such as a prism 140 , a lens group 120 , an image sensor 150 , and a piezoelectric limiter 130 .
  • the base 110 may be provided with a first installation part, a second installation part and a third installation part, the first installation part is used to install the prism 140, the second installation part is used to install the lens group 120, and the third installation part is used to install the image Sensor 150.
  • the first mounting portion is disposed at one end of the base 110
  • the third mounting portion is disposed at the other end of the base 110 .
  • the second installation part is a cavity inside the base 110 , and the size of the second installation part in the moving direction of the lens group 120 is larger than the size of the lens group 120 in the moving direction thereof.
  • the base 110 may be a rectangular frame structure, and the base 110 may include a first board, a second board, a third board and a fourth board connected end to end.
  • the prism 140 may be located on a side of the first board away from the third board, the image sensor 150 is located on a side of the third board away from the first board, and the lens group 120 is disposed between the first board and the third board.
  • connection mode of the first board, the second board, the third board and the fourth board can be welding, bolt connection or adhesive connection, etc., or the first board, the second board, the third board and the fourth board can also be It is an integral structure, for example, the base 110 can be integrally formed by casting, injection molding or machining.
  • a first through hole may be disposed on the first plate, and the first through hole is used to allow light reflected by the prism 140 to enter the lens group 120 .
  • a second through hole is disposed on the third plate, and the second through hole is used for allowing the light in the lens group 120 to enter the image sensor 150 .
  • the first through hole and the second through hole may be rectangular holes or circular holes or the like.
  • the material of the base 110 may be plastic, rubber, aluminum alloy or stainless steel.
  • an insulating material layer may be provided on the surface of the base 110 .
  • the lens group 120 is slidably connected to the base 110, and the lens group 120 can move along a first direction relative to the base 110, the base 110 has a side plate arranged along the first direction, and the piezoelectric stopper 130 is arranged on the side plate facing the lens group 120 side.
  • the side plate disposed along the first direction of the base 110 may be the second plate or the fourth plate.
  • the piezoelectric limiter 130 may be disposed on one of the second plate or the fourth plate, or the piezoelectric limiter 130 may be disposed on both the second plate and the fourth plate.
  • the lens group 120 may include one or more lenses and a lens holder 122 , and the one or more lenses are mounted on the lens holder 122 .
  • the lens holder 122 may be in a cylindrical structure, and the lens holder 122 is provided with a mounting through hole, which runs through the first direction, and one or more lenses are disposed in the mounting through hole.
  • the lens may be a circular lens, and in this case, the installation through hole on the lens holder 122 is a circular through hole.
  • the lens may also be a lens of other shapes, for example, the lens is an elliptical lens, and correspondingly, the installation through hole may also be an elliptical hole, which is not specifically limited in this embodiment of the present disclosure.
  • the number of lenses in the lens group 120 can be 1, 2, 3, 4 or 5, etc.
  • the multiple lenses may be any combination of plane mirrors, concave mirrors or convex mirrors.
  • the number of lenses in the lens group 120 may be three.
  • the lens group 120 includes a first lens, a second lens and a third lens, the first lens, the second lens and the third lens are sequentially arranged on the lens holder 122 , and the first lens is close to the prism 140 .
  • the first lens has a convex surface, and the convex surface faces the prism 140; the second lens is arranged on the side of the first lens away from the prism 140, and the second lens has a concave surface near the first lens; the third lens is arranged on the second lens away from the first lens.
  • One side of the first lens and the third lens are both aspherical surfaces; the side of the third lens close to the second lens has a concave surface at the optical axis, and the side of the third lens close to the image sensor 150 has a convex surface at the optical axis.
  • the first lens is convex toward the prism 140 at the optical axis and has positive optical power.
  • a side of the second lens close to the first lens has a concave surface at the optical axis, and has a negative power.
  • the third lens has a concave surface facing the second lens side near the optical axis and has negative power. Spherical chromatic aberration, field curvature and distortion are well corrected.
  • the lenses in the lens group 120 may be plastic lenses, resin lenses or glass lenses.
  • the materials of the multiple lenses may be the same, or the materials of the multiple lenses may be different.
  • the lens group 120 may be a combination of glass lenses and resin lenses.
  • the imaging assembly 10 provided in the embodiment of the present disclosure may further include a focus motor, the focus motor is disposed on the base 110 , and the focus motor is used to drive the lens group 120 to move along the first direction to achieve auto-focus.
  • the focus motor may be a voice coil motor.
  • the piezoelectric limiter 130 is arranged on the lens group 120.
  • the piezoelectric limiter 130 includes a first state and a second state. When the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 is opposite to the lens group 120. Limiting is performed to prevent the lens group 120 from moving relative to the base 110 , and when the piezoelectric limiting member 130 is in the second state, the lens group 120 can move relative to the base 110 .
  • the first state may be an expanded state
  • the second state may be a contracted state.
  • a positive electric signal is applied to the piezoelectric limiting element 130
  • the piezoelectric limiting element 130 expands, and the expanded piezoelectric limiting element 130 abuts against the base 110 to limit the lens group 120 .
  • a reverse electric signal is applied to the limiter, the piezoelectric limiter 130 contracts, and the contracted piezoelectric limiter 130 releases the limit to the lens group 120, and the lens group 120 can move freely.
  • the piezoelectric limiter 130 can be arranged on the side of the lens group 120 facing the side plate. Correspondingly, a limit groove is provided on the side plate of the base 110. When the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 The limiting member 130 is at least partially located in the limiting groove.
  • the piezoelectric limiter 130 When the imaging component 10 is in the autofocus process, the piezoelectric limiter 130 is in the second state, that is, the piezoelectric limiter 130 receives a reverse electrical signal, the piezoelectric limiter 130 shrinks, and the lens group 120 is in a free state , the focus motor drives the lens group 120 to automatically focus.
  • the piezoelectric limiter 130 When the imaging component 10 is not working, the piezoelectric limiter 130 is in the second state, that is, the piezoelectric limiter 130 receives a positive electrical signal, the piezoelectric limiter 130 expands, and the lens group 120 is locked and cannot move .
  • the lens group 120 is slidably connected to the base 110, and the lens group 120 can move along a first direction relative to the base 110.
  • the base 110 has a side plate arranged along the first direction, and a conductive strip 191 is arranged on the side plate, and the conductive strip 191 is arranged along the first direction.
  • the lens group 120 is provided with a conductive contact 192 , the conductive contact 192 is connected to the piezoelectric limiter 130 , and when the lens group 120 slides relative to the base 110 , the conductive contact 192 contacts the conductive strip 191 .
  • the travel of the lens group 120 along the first direction is greater than or equal to the size of the lens group 120 along the first direction.
  • the piezoelectric limiter 130 includes: a piezoelectric controller 131 and a piezoelectric body 132, the piezoelectric controller 131 is arranged on the lens group 120; the piezoelectric body 132 is connected to the piezoelectric controller 131, and the piezoelectric body 132 responds to the piezoelectric control
  • the power signal output by the switch 131 is switched between the first state and the second state.
  • the piezoelectric controller 131 may be embedded in the lens group 120 , and the piezoelectric body 132 is disposed on a side of the piezoelectric controller 131 away from the lens group 120 .
  • the piezoelectric controller 131 is electrically connected to the piezoelectric body 132 , and the piezoelectric controller 131 provides a power signal to the piezoelectric body 132 .
  • the piezoelectric controller 131 includes a housing and a control circuit, the housing is connected with the lens group 120 ;
  • the piezoelectric controller 131 may also include a circuit board, the circuit board is disposed in the casing, and the control circuit is disposed on the circuit board.
  • a power interface may be provided on the circuit board, and the power interface is used to connect to a power supply.
  • the power interface may be connected to a battery or a power management circuit of an electronic device.
  • the control circuit is connected to the power interface, and the control circuit can convert the power signal into a forward electric signal or a reverse electric signal.
  • the piezoelectric body 132 may include: a first electrode layer 31, a piezoelectric material layer 32 and a second electrode layer 33, the first electrode layer 31 is connected to the piezoelectric controller 131 for receiving a first power signal; the piezoelectric material layer 32 is set on one side of the first electrode layer 31; the second electrode layer 33 is set on the side of the piezoelectric material layer 32 away from the first electrode layer 31, and is connected to the piezoelectric controller 131 for receiving the second power signal.
  • the first electrode layer 31 is disposed on the lens group 120 , and the piezoelectric material layer 32 is configured such that the piezoelectric material expands when the first electrode layer 31 receives a positive signal and the second electrode layer 33 receives a negative signal.
  • the piezoelectric material expands.
  • the first electrode layer 31 and the second electrode layer 33 are respectively connected to the control circuit, the first electrode layer 31 receives the first power signal from the control circuit, and the second electrode layer 33 receives the second power signal from the control circuit.
  • the first power signal is a positive signal
  • the second power signal is a negative signal
  • the first power signal is a negative signal
  • the second power signal is a positive signal.
  • the material of the first electrode layer 31 is a conductive material, for example, the first electrode material may be one or more of aluminum, copper, silver, aluminum alloy, stainless steel, indium tin oxide, titanium alloy and aluminum magnesium alloy.
  • the material of the second electrode layer 33 is a conductive material.
  • the second electrode material may be one or more of aluminum, copper, silver, aluminum alloy, stainless steel, indium tin oxide, titanium alloy, and aluminum-magnesium alloy. Materials of the first conductive layer and the second conductive layer may be the same or different.
  • an insulating film may be provided on the side of the first electrode layer 31 away from the piezoelectric material layer 32 to achieve insulation between the first electrode layer 31 and the base 110 .
  • An insulating film is provided on a side of the second electrode layer 33 away from the piezoelectric material layer 32 to realize insulation between the second electrode layer 33 and the lens group 120 .
  • a guide part 133 can be provided on the piezoelectric body 132 to guide The portion 133 is disposed on a side of the piezoelectric body 132 facing the lens group 120 .
  • the cross-sectional area of the guide part 133 gradually decreases along the direction from the lens group 120 to the side plate, that is, the guide part 133 is gradually changing. into the groove on the lens group 120.
  • the guiding portion 133 can be formed by the second electrode layer 33 , for example, the second electrode layer 33 can be bent to form the guiding portion 133 .
  • the guide portion 133 may be a structure independently provided on the side of the second electrode layer 33 away from the piezoelectric material layer 32 .
  • the piezoelectric limiting member 130 can also be an integral structure with the base 110 , for example, the piezoelectric limiting member 130 is formed on the inner wall of the base 110 , or the base 110 can be made of piezoelectric material.
  • the prism 140 is connected to the base 110 , the prism 140 can rotate relative to the base 110 , and the prism 140 is located on the light-incoming side of the lens group 120 .
  • the prism 140 is used to change the propagation direction of light, so that the imaging component 10 can be used for periscope imaging.
  • the prism 140 has a reflective surface, and the reflective surface reflects incident light to the lens group 120 .
  • the prism 140 may be a triangular prism 140 and the prism 140 is a rectangular triangular prism 140 .
  • the surface where a right-angled side of the right-angled prism 140 is located is opposite to the light inlet on the electronic device, and the surface where the other right-angled side of the right-angled prism is located It is opposite to the lens group 120 .
  • the imaging assembly 10 may further include an anti-shake motor and a prism seat 141 , the prism seat 141 is arranged on the base 110 , and the prism 140 is connected to the prism seat 141 .
  • the anti-shake motor is connected to the prism 140, and the anti-shake motor drives the prism 140 to rotate.
  • the image sensor 150 is disposed on the light emitting side of the lens group 120 .
  • the image sensor can be a CCD sensor or a CMOS sensor.
  • the sensor includes photodiodes distributed in an array, an output circuit layer and a substrate, the photodiodes are connected to the output circuit, and the photodiodes and the output circuit are packaged on the substrate.
  • the photodiode is used to convert the optical signal into an electrical signal, and the output circuit is used to output the electrical signal.
  • the piezoelectric limiter 130 is provided between the base 110 and the lens group 120.
  • the piezoelectric limiter 130 includes a first state and a second state.
  • the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from moving relative to the base 110, which solves the problem of abnormal noise in electronic equipment;
  • the piezoelectric limiter 130 is in the first state In the second state, the lens group 120 can move relative to the base 110 , that is, the piezoelectric limiter 130 does not affect the movement of the lens group 120 during autofocus, and autofocus can be realized.
  • it avoids the problem of dust and foreign matters affecting the imaging quality due to the collision of the lens group 120 and the base 110 and other components, and improves the imaging quality of the electronic equipment.
  • Exemplary embodiments of the present disclosure also provide an electronic device, which may include the above-mentioned imaging component 10 .
  • the imaging assembly 10 includes a base 110, a lens group 120 and a piezoelectric stopper 130, the lens group 120 is arranged on the base 110, and the lens group 120 can move relative to the base 110; the piezoelectric stopper 130 is arranged on the base 110 , the piezoelectric limiter 130 includes a first state and a second state. When the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from The base 110 moves, and when the piezoelectric stopper 130 is in the second state, the lens group 120 can move relative to the base 110 .
  • the imaging assembly 10 may include a base 110, a lens group 120 and a piezoelectric stopper 130, the lens group 120 is arranged on the base 110, and the lens group 120 can move relative to the base 110; the piezoelectric stopper 130 is arranged on the lens group 120 , the piezoelectric limiter 130 includes a first state and a second state. When the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from The base 110 moves, and when the piezoelectric stopper 130 is in the second state, the lens group 120 can move relative to the base 110 .
  • the electronic device provided by the embodiment of the present disclosure includes an imaging component 10, in which a piezoelectric limiter 130 is provided between the base 110 and the lens group 120, and the piezoelectric limiter 130 includes a first state and a second state , when the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from moving relative to the base 110, which solves the problem of abnormal noise in the electronic device; when When the piezoelectric limiter 130 is in the second state, the lens group 120 can move relative to the base 110 , that is, the piezoelectric limiter 130 does not affect the movement of the lens group 120 during autofocus, and autofocus can be realized. In addition, it avoids the problem of dust and foreign matters affecting the imaging quality due to the collision of the lens group 120 and the base 110 and other components, and improves the imaging quality of the electronic equipment.
  • the electronic device may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant, an e-reader, a smart watch, smart glasses, and other electronic devices with imaging functions.
  • the electronic device provided by the embodiment of the present disclosure may further include a display screen 20 , a middle frame 30 , a main board 40 , a battery 50 and a rear cover 60 .
  • the display screen 20 is installed on the middle frame 30 to form the display surface of the electronic device, and the display screen 20 serves as the front shell of the electronic device.
  • the back cover 60 is pasted on the middle frame 30 by double-sided tape, and the display screen 2010, the middle frame 30 and the back cover 60 form a storage space for accommodating other electronic components or functional modules of the electronic device.
  • the display screen 20 forms a display surface of the electronic device for displaying information such as images and texts.
  • the functional modules such as camera and proximity sensor in the electronic device can be hidden under the display screen 2010, and the fingerprint identification module of the electronic device can be arranged on the back of the electronic device.
  • the middle frame 30 may be a hollow frame structure. Wherein, the material of the middle frame 30 may include metal or plastic.
  • the main board 40 is installed inside the above-mentioned receiving space.
  • the main board 40 can be installed on the middle frame 30 and accommodated together with the middle frame 30 in the above-mentioned receiving space.
  • a grounding point is provided on the main board 40 to realize the grounding of the main board 40 .
  • One or more of functional modules such as a motor, a microphone, a loudspeaker, a receiver, an earphone jack, a universal serial bus interface (USB interface), a camera, a proximity sensor, an ambient light sensor, a gyroscope, and a processor can be integrated on the mainboard 40 .
  • the display screen 20 may be electrically connected to the main board 40 .
  • the main board 40 is provided with a display control circuit.
  • the display control circuit outputs electrical signals to the display screen 20 to control the display screen 20 to display information.
  • the battery 50 is installed inside the above-mentioned storage space.
  • the battery 50 may be installed on the middle frame 30 and accommodated together with the middle frame 30 in the above-mentioned receiving space.
  • the battery 50 can be electrically connected to the motherboard 40, so that the battery 50 can provide power for the electronic device.
  • the main board 40 may be provided with a power management circuit.
  • the power management circuit is used to distribute the voltage provided by the battery 50 to various electronic components in the electronic device.
  • the rear cover 60 is used to form the outer contour of the electronic device.
  • the rear cover 60 can be integrally formed.
  • structures such as a rear camera hole and a fingerprint identification module installation hole may be formed on the rear cover 60 .
  • the imaging assembly 10 provided by the embodiment of the present disclosure can be installed on the main board 40 , the middle frame 30 or the rear cover 60 .
  • the base 110 may be connected to the main board 40 , the middle frame 30 or the rear cover 60 .
  • a light entrance hole is provided on the back cover 60 , and the prism 140 is opposite to the light entrance hole.
  • the prism 140 changes the direction of the light output from the light entrance hole and transmits it to the lens group 120 .
  • the image sensor 150 can be connected to the base 110 , or the image sensor 150 can also be connected to the main board 40 or the middle frame 30 .
  • the light entrance hole may be covered with a lens decoration.
  • the electronic device provided by the embodiment of the present disclosure includes an imaging component 10, in which a piezoelectric limiter 130 is provided between the base 110 and the lens group 120, and the piezoelectric limiter 130 includes a first state and a second state , when the piezoelectric limiter 130 is in the first state, the piezoelectric limiter 130 limits the lens group 120 to prevent the lens group 120 from moving relative to the base 110, which solves the problem of abnormal noise in the electronic device; when When the piezoelectric limiter 130 is in the second state, the lens group 120 can move relative to the base 110 , that is, the piezoelectric limiter 130 does not affect the movement of the lens group 120 during autofocus, and autofocus can be realized. In addition, it avoids the problem of dust and foreign matters affecting the imaging quality due to the collision of the lens group 120 and the base 110 and other components, and improves the imaging quality of the electronic equipment.

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Abstract

一种成像组件及电子设备，涉及电子设备技术领域，成像组件（10）包括：底座（110）、透镜组（120）和压电限位件（130），透镜组（120）设于底座（110），透镜组（120）能够相对于底座（110）运动，压电限位件（130）设于底座（110），压电限位件（130）至少具有第一状态和第二状态，当压电限位件（130）处于第一状态时，压电限位件（130）对透镜组（120）进行限位，当压电限位件（130）处于第二状态时，压电限位件（130）解除对透镜组（120）的限位。能够解决电子设备存在异响的问题。

Description

成像组件及电子设备
交叉引用
本公开要求于2021年12月02日提交的申请号为202111462619.0名称为“成像组件及电子设备”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及电子设备技术领域，具体而言，涉及一种电子设备及SAR检测组件。
背景技术
随着技术的发展和进步，人们对电子设备的成像功能的要求越来越高，为了适应这一要求在手机等电子设备中，成像组件往往具有自动对焦功能。为了实现自动对焦，成像组件中的透镜组能够滑动。能够滑动的透镜组件容易在电子设备使用时产生异响。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
公开内容
本公开的目的在于提供一种成像组件及电子设备，进而至少一定程度上解决由于相关技术的缺陷而导致的一个或多个问题。
根据本公开的第一个方面，提供一种成像组件，所述成像组件包括：
底座；
透镜组，所述透镜组设于所述底座，且所述透镜组能够相对于所述底座运动；
压电限位件，所述压电限位件设于所述底座，所述压电限位件包括第一状态和第二状态，当所述压电限位件处于第一状态时，所述压电限位件和所述透镜组接触，当所述压电限位件处于第二状态时，所述压电限位件和所述透镜组不接触。
根据本公开的第二个方面，提供另一种成像组件，所述成像组件包括：
底座；
透镜组，所述透镜组设于所述底座，且所述透镜组能够相对于所述底座运动；
压电限位件，所述压电限位件设于所述透镜组，所述压电限位件包括第一状态和第二状态，当所述压电限位件处于第一状态时，所述压电限位件对所述透镜组进行限位，当所述压电限位件处于第二状态时，所述压电限位件解除对所述透镜组的限位。
根据本公开的第三个方面，提供一种电子设备，所述电子设备包括上述的成像组件。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并 不能限制本申请。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开示例性实施例提供的第一种成像组件的示意图；
图2为本公开示例性实施例提供的第二种成像组件的示意图；
图3为本公开示例性实施例提供的第三种成像组件的示意图；
图4为本公开示例性实施例提供的一种成像组件的爆炸示意图；
图5为本公开示例性实施例提供的第四种成像组件的示意图；
图6为本公开示例性实施例提供的第五种成像组件的示意图；
图7为本公开示例性实施例提供的一种压电限位件的示意图；
图8为本公开示例性实施例提供的一种压电体的示意图；
图9为本公开示例性实施例提供的第六种成像组件的示意图；
图10为本公开示例性实施例提供的一种电子设备的示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本发明将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
手机等电子设备中通常设置有成像组件，成像组件用于采集图像信息(比如，拍摄射频或者照片)。随着技术的发展和进步，人们对电子设备成像功能的要求日益提高。为了提高电子设备的成像质量电子设备的成像组件具有自动对焦功能，也即是，成像组件中的透镜组能够运动。
在自动对焦时马达驱动透镜组运动，当不拍照时透镜组具有一定的自由度。这导致用户运动或者摇晃电子设备时，透镜组容易和电子设备中的其他器件碰撞而产生异响。该类异响容易使用户产生电子设备存在质量问题的误解，降低用户体验。并且透镜组和电子设备其他器件发生碰撞时容易产生粉尘异物，粉尘异物落到透镜组或者其 他成像区，会导致图像上产生黑点或者黑斑，影响成像质量。
本公开示例性实施例首先提供一种成像组件10，如图1所示，该成像组件10包括：底座110、透镜组120和压电限位件130，透镜组120设于底座110，且透镜组120能够相对于底座110运动；压电限位件130设于底座110，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130和透镜组120接触，以避免透镜组120相对于底座110运动，当压电限位件130处于第二状态时，压电限位件130和透镜组120不接触。
本公开实施例提供的成像组件10，通过在底座110和透镜组120之间设置压电限位件130，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，解决了电子设备存在异响的问题；当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动，也即是在自动对焦时压电限位件130不影响透镜组120运动，能够实现自动对焦。并且避免了由于透镜组120和底座110等器件碰撞而产生粉尘异物影响成像质量的问题，提高了电子设备的成像质量。
进一步的，如图2和图3所示，本公开实施例提供的成像组件10还可以包括棱镜140和图像传感器150，棱镜140和底座110连接，棱镜140能够相对于底座110转动，且棱镜140位于透镜组120的进光侧；图像传感器150设于透镜组120的出光侧。
棱镜140位于底座110的一端，图像传感器150位于底座110的另一端。底座110上设置有预设空间，透镜组120在该预设空间内运动。棱镜140可以和底座110转动连接，棱镜140相对于底座110转动，以实现光学防抖。透镜组120在底座110上可以沿预设方向作往复直线运动，以实现自动对焦。
下面将对本公开实施例提供的成像组件10的各部分进行详细说明：
如图4所示，底座110用于安装棱镜140、透镜组120、图像传感器150和压电限位件130等器件。底座110上可以设置有第一安装部、第二安装部和第三安装部，第一安装部用于安装棱镜140，第二安装部用于安装透镜组120，第三安装部用于安装图像传感器150。
第一安装部设于底座110的一端，第三安装部设于底座110的另一端。第二安装部为底座110内部的空腔，第二安装部在透镜组120运动方向上的尺寸大于透镜组120在其运动方向上的尺寸。
示例的，底座110可以是矩形框状结构，底座110可以包括首尾相接的第一板、第二板、第三板和第四板。棱镜140可以位于第一板远离第三板的一侧，图像传感器150位于第三板远离第一板的一侧，透镜组120设于第一板和第三板之间。
其中，第一板、第二板、第三板和第四板的连接方式可以是焊接、螺栓连接或者胶连接等方式，或者第一板、第二板、第三板和第四板也可以是一体结构，比如，底座110可以通过铸造、注塑或者机加工等方式整体成型。
第一板上可以设置有第一通孔，第一通孔用于使棱镜140反射的光线进入透镜组120。第三板上设置有第二通孔，第二通孔用于使透镜组120中的光线进入图像传感器 150。第一通孔和第二通孔可以是矩形孔或者圆形孔等。
在底座110上可以设置有导向结构，该导向结构沿透镜组120的运动方向设置。导向机构可以设于第二板或者第四板，或者可以在第二板和第四板上均设置导向结构。导向结构可以是直线滑槽或者直线导轨。
底座110的材料可以是塑料、橡胶、铝合金或者不锈钢等。当底座110的材料为铝合金或者不锈钢等导体材料时，可以在底座110的表面设置绝缘材料层。
如图5所示，透镜组120和底座110滑动连接，并且透镜组120能够相对于底座110沿第一方向运动，底座110具有沿第一方向设置的侧板111，压电限位件130设于侧板111朝向透镜组120的一侧。
其中，底座110沿第一方向设置的侧板111可以是第二板或者第四板。可以在第二板或者第四板中的一个上设置压电限位件130，或者在第二板和第四板上均设置压电限位件130。
可以理解的是，在本公开实施例中，如图6所示，底座110也可以包括镜筒112，透镜组120设于镜筒112内，且透镜组120能够相对于镜筒112运动，压电限位件130设于镜筒112的内壁。可以在镜筒112的内壁沿圆周布置多个压电限位件130，相应的，可以在透镜组120上设置有限位凹槽123。也即是，本公开实施例提供的成像组件可以用于潜望式成像，成像组件也可以用于直接式成像，本公开实施例对此不做具体限定。
透镜组120可以包括一个或者多个透镜121及镜片支架122，一个或多个透镜121安装于镜片支架122。镜片支架122可以呈筒状结构，镜片支架122上设置有安装通孔，安装通孔在第一方向上贯通，一个或者多个透镜121设于安装通孔。
其中，透镜可以是圆形透镜，此时，镜片支架122上的安装通孔为圆形通孔。或者透镜也可以是其他形状的透镜，比如，透镜为椭圆透镜，相应的，安装通孔也可以是椭圆孔，本公开实施例对此不做具体限定。
透镜组120中透镜的数量可以是1、2、3、4或者5等。当透镜组120中包括多个透镜时，多个透镜可以是平面镜、凹面镜或者凸面镜的任意组合。比如，透镜组120中透镜的数量可以是三个。透镜组120包括第一透镜、第二透镜和第三透镜，第一透镜、第二透镜和第三透镜依次设于镜片支架122，并且第一透镜靠近棱镜140。
第一透镜具有凸面，凸面朝向棱镜140；第二透镜设于第一透镜远离棱镜140的一侧，并且第二透镜靠近第一透镜的一侧具有凹面；第三透镜设于第二透镜远离第一透镜的一侧，第三透镜双面为非球面；第三透镜靠近第二透镜的一侧在光轴处具有凹面，第三透镜靠近图像传感器150的一侧在光轴处具有凸面。
第一透镜在光轴处凸面朝向棱镜140并且具有正的光焦度。第二透镜靠近第一透镜的一面在光轴处具有凹面，并且具有负的光焦度。第三透镜在光轴附近凹面朝向第二透镜侧且具有负的光焦度。能够良好地校正球面色差、场曲和畸变。
透镜组120中的透镜可以是塑料透镜、树脂透镜或者玻璃透镜。多个透镜的材料可以相同，或者多个透镜的材料可以不同，比如透镜组120可以是玻璃透镜和树脂透 镜的组合。
在本公开实施例提供的成像组件10中还可以包括对焦马达，对焦马达设于底座110，对焦马达用于驱动透镜组120沿第一方向运动，以实现自动对焦。对焦马达可以是音圈马达。
压电限位件130设于底座110，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动。
其中，第一状态可以是膨胀状态，第二状态是收缩状态。当向压电限位件130施加正向电信号时，压电限位件130膨胀，膨胀的压电限位件130抵于透镜组120，对透镜组120进行限位。当向限位件施加反向电信号时，压电限位件130收缩，收缩的压电限位件130解除对透镜组120的限位，透镜组120能够自由运动。
在压电限位件130膨胀时，压电限位件130和底座110接触。可以通过压电限位件130和底座110之间的摩擦力实现对透镜组120的限位。或者膨胀的压电限位件130可以至少部分伸入底座上的限位凹槽实现对透镜组120的限位。
压电限位件130可以设于底座110的侧板111朝向透镜组120的一侧，相应的，透镜组120朝向侧板111的一面上设置有限位凹槽，当压电限位件130处于第一状态时，压电限位件130至少部分位于限位凹槽。
当成像组件10处于自动对焦过程中，压电限位件130处于第二状态，也即是压电限位件130接收反向电信号，压电限位件130收缩，透镜组120处于自由状态，对焦马达驱动透镜组120自动对焦。当成像组件10不工作时，压电限位件130处于第二状态，也即是压电限位件130接收正向电信号，压电限位件130膨胀，透镜组120被锁定，无法运动。
如图7所示，压电限位件130包括：压电控制器131和压电体132，压电控制器131设于底座110；压电体132和压电控制器131连接，压电体132响应压电控制器131输出的电源信号在第一状态和第二状态之间切换。
其中，压电控制器131可以嵌于底座110，压电体132设于压电控制器131远离底座110的一侧。压电控制器131和压电体132电连接，压电控制器131向压电体132提供电源信号。
压电控制器131包括壳体和控制电路，壳体和底座110连接；控制电路设于壳体内，控制电路连接压电体132，控制电路向压电体132提供电信号。
压电控制器131还可以包括电路板，电路板设于壳体内，控制电路设于电路板上。电路板上可以设置有电源接口，电源接口用于连接电源，比如，电源接口可以和电子设备的电池或者电源管理电路连接。控制电路和电源接口连接，控制电路能够将电源信号转换为正向电信号或者反向电信号。
如图8所示，压电体132可以包括：第一电极层31、压电材料层32和第二电极层33，第一电极层31和压电控制器131连接，用于接收第一电源信号；压电材料层 32设于第一电极层31的一侧；第二电极层33设于压电材料层32远离第一电极层31的一侧，和压电控制器131连接，用于接收第二电源信号。
第一电极层31设于底座110，压电材料层32被配置为当第一电极层31接收正极信号，第二电极层33接收负极信号时，压电材料膨胀。当第一电极层31接收负极信号，第二电极层33接收正极信号时，压电材料膨胀。
第一电极层31和第二电极层33分别连接控制电路，第一电极层31从控制电路接收第一电源信号，第二电极层33从控制电路接收第二电源信号。示例的，当压电限位件130处于第一状态时，第一电源信号为正极信号，第二电源信号为负极信号。当压电限位件130处于第二状态时，第一电源信号为负极信号，第二电源信号为正极信号。
第一电极层31的材料是导电材料，比如，第一电极材料可以是铝、铜、银、铝合金、不锈钢、氧化铟锡、钛合金和铝镁合金中的一种或者多种。第二电极层33的材料是导电材料，比如，第二电极材料可以是铝、铜、银、铝合金、不锈钢、氧化铟锡、钛合金和铝镁合金中的一种或者多种。第一导电层和第二导电层的材料可以相同或者不同。
在实际用于中，可以在第一电极层31远离压电材料层32的一侧设置绝缘膜，以实现第一电极层31和底座110的绝缘。在第二电极层33远离压电材料层32的一侧设置有绝缘膜，以实现第二电极层33和透镜组120的绝缘。
压电材料层32由压电材料制成，压电材料具有压电效应和逆压电效应。对压电材料施加压力，它会产生电位差，这种现象叫做正压电效应；对压电材料施加电压，它会产生机械应力，这种现象叫做逆压电效应。
当压电材料受到某个固定方向外力的作用时，内部就产生电极化现象，同时在某两个表面上产生符号相反的电荷；当外力撤去后，材料又恢复到不带电的状态；当外力作用方向改变时，电荷的极性也随之改变；材料受力所产生的电荷量与外力的大小成正比。当对压电材料施加电场时，材料的某些方向会出现机械形变的现象，并且其形变量与外电场强度成正比，这种现象称为逆压电效应。压电材料的受力变形有厚度变形型、长度变形型、体积变形型、厚度切变型、平面切变型5种基本形式。例如，石英晶体具有良好的厚度变形和长度变形压电效应。
压电材料可以是无机压电材料或者有机压电材料，无机压电材料可以包括压电晶体和压电陶瓷，压电晶体是指压电单晶体；压电陶瓷则指压电多晶体。压电陶瓷是指用必要成份的原料进行混合、成型、高温烧结，由粉粒之间的固相反应和烧结过程而获得的微细晶粒无规则集合而成的多晶体。具有压电性的陶瓷称压电陶瓷。比如，钛酸钡、锆钛酸铅、改性锆钛酸铅、偏铌酸铅、石英晶体、镓酸锂、锗酸锂、锗酸钛以及铁晶体管铌酸锂、钽酸锂等。有机压电材料又称压电聚合物，比如聚偏氟乙烯、偏氟乙烯一三氟乙烯共聚物、亚乙烯基二氰一醋酸乙烯交替共聚物等。
压电限位件130在膨胀时，至少部分伸入透镜组120上的凹槽内，为了使压电限位件130便于伸入凹槽，可以在压电体132上设置有导向部133，导向部133设于压电体132朝向透镜组120的一侧。
导向部133的截面积沿从侧板到透镜组120的方向逐渐减小，也即是导向部133呈渐变状，比如，导向部133可以具有相对的斜面，以便于压电限位件130伸入透镜组120上的凹槽内。
可以通过第二电极层33形成导向部133，比如，可以将第二电极层33弯折形成导向部133。或者导向部133可以是独立设于第二电极层33远离压电材料层32一侧的结构。
棱镜140和底座110连接，棱镜140能够相对于底座110转动，且棱镜140位于透镜组120的进光侧。棱镜140用于改变光线的传播方向，使得成像组件10可以用于潜望式成像。
棱镜140具有反射面，反射面将入射光线反射至透镜组120。比如，棱镜140可以是三棱镜140，并且棱镜140是直角三棱镜140。在直角三棱镜140的斜边所在的面上涂覆反射材料形成反射层，直角三棱镜140的一个直角边所在的面和电子设备上的进光孔相对，直角三菱镜的另一个直角边所在的面和透镜组120相对。
进一步的，为了驱动棱镜140转动，成像组件10还可以包括防抖马达和棱镜座141，棱镜座141设于底座110，棱镜140连接于棱镜座141。防抖马达和棱镜140连接，防抖马达驱动棱镜140转动。
图像传感器150设于透镜组120的出光侧。图像感器可以是CCD传感器或者CMOS传感器。传感器中包括阵列式分布的光电二极管、输出电路层和衬底，光电二极管和输出电路连接，光电二极管和输出电路封装于衬底。该光电二极管用于将光信号转为电信号，输出电路用于将电信号输出。
本公开实施例提供的成像组件还可以包括封装壳体160，封装壳体160覆盖于底座110，封装壳体160用于和底座110形成容置腔体，透镜组120设于该容置腔体。
本公开实施例提供的成像组件10，通过在底座110和透镜组120之间设置压电限位件130，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，解决了电子设备存在异响的问题；当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动，也即是在自动对焦时压电限位件130不影响透镜组120运动，能够实现自动对焦。并且避免了由于透镜组120和底座110等器件碰撞而产生粉尘异物影响成像质量的问题，提高了电子设备的成像质量。
本公开示例性实施例还提供另一种成像组件10，如图9所示，成像组件10包括：底座110、透镜组120和压电限位件130，透镜组120设于底座110，且透镜组120能够相对于底座110运动；压电限位件130设于透镜组120，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动。
进一步的，本公开实施例提供的成像组件10还可以包括棱镜140和图像传感器150，棱镜140和底座110连接，棱镜140能够相对于底座110转动，且棱镜140位于 透镜组120的进光侧；图像传感器150设于透镜组120的出光侧。
棱镜140位于底座110的一端，图像传感器150位于底座110的另一端。底座110上设置有预设空间，透镜组120在该预设空间内运动。棱镜140可以和底座110转动连接，棱镜140相对于底座110转动，以实现光学防抖。透镜组120在底座110上可以沿预设方向作往复直线运动，以实现自动对焦。
下面将对本公开实施例提供的成像组件10的各部分进行详细说明：
底座110用于安装棱镜140、透镜组120、图像传感器150和压电限位件130等器件。底座110上可以设置有第一安装部、第二安装部和第三安装部，第一安装部用于安装棱镜140，第二安装部用于安装透镜组120，第三安装部用于安装图像传感器150。
第一安装部设于底座110的一端，第三安装部设于底座110的另一端。第二安装部为底座110内部的空腔，第二安装部在透镜组120运动方向上的尺寸大于透镜组120在其运动方向上的尺寸。
示例的，底座110可以是矩形框状结构，底座110可以包括首尾相接的第一板、第二板、第三板和第四板。棱镜140可以位于第一板远离第三板的一侧，图像传感器150位于第三板远离第一板的一侧，透镜组120设于第一板和第三板之间。
其中，第一板、第二板、第三板和第四板的连接方式可以是焊接、螺栓连接或者胶连接等方式，或者第一板、第二板、第三板和第四板也可以是一体结构，比如，底座110可以通过铸造、注塑或者机加工等方式整体成型。
第一板上可以设置有第一通孔，第一通孔用于使棱镜140反射的光线进入透镜组120。第三板上设置有第二通孔，第二通孔用于使透镜组120中的光线进入图像传感器150。第一通孔和第二通孔可以是矩形孔或者圆形孔等。
底座110的材料可以是塑料、橡胶、铝合金或者不锈钢等。当底座110的材料为铝合金或者不锈钢等导体材料时，可以在底座110的表面设置绝缘材料层。
透镜组120和底座110滑动连接，并且透镜组120能够相对于底座110沿第一方向运动，底座110具有沿第一方向设置的侧板，压电限位件130设于侧板朝向透镜组120的一侧。
其中，底座110沿第一方向设置的侧板可以是第二板或者第四板。可以在第二板或者第四板中的一个上设置压电限位件130，或者在第二板和第四板上均设置压电限位件130。
透镜组120可以包括一个或者多个透镜及镜片支架122，一个或多个透镜安装于镜片支架122。镜片支架122可以呈筒状结构，镜片支架122上设置有安装通孔，安装通孔在第一方向上贯通，一个或者多个透镜设于安装通孔。
其中，透镜可以是圆形透镜，此时，镜片支架122上的安装通孔为圆形通孔。或者透镜也可以是其他形状的透镜，比如，透镜为椭圆透镜，相应的，安装通孔也可以是椭圆孔，本公开实施例对此不做具体限定。
透镜组120中透镜的数量可以是1、2、3、4或者5等。当透镜组120中包括多个透镜时，多个透镜可以是平面镜、凹面镜或者凸面镜的任意组合。比如，透镜组120 中透镜的数量可以是三个。透镜组120包括第一透镜、第二透镜和第三透镜，第一透镜、第二透镜和第三透镜依次设于镜片支架122，并且第一透镜靠近棱镜140。
第一透镜具有凸面，凸面朝向棱镜140；第二透镜设于第一透镜远离棱镜140的一侧，并且第二透镜靠近第一透镜的一侧具有凹面；第三透镜设于第二透镜远离第一透镜的一侧，第三透镜双面为非球面；第三透镜靠近第二透镜的一侧在光轴处具有凹面，第三透镜靠近图像传感器150的一侧在光轴处具有凸面。
第一透镜在光轴处凸面朝向棱镜140并且具有正的光焦度。第二透镜靠近第一透镜的一面在光轴处具有凹面，并且具有负的光焦度。第三透镜在光轴附近凹面朝向第二透镜侧且具有负的光焦度。能够良好地校正球面色差、场曲和畸变。
透镜组120中的透镜可以是塑料透镜、树脂透镜或者玻璃透镜。多个透镜的材料可以相同，或者多个透镜的材料可以不同，比如透镜组120可以是玻璃透镜和树脂透镜的组合。
在本公开实施例提供的成像组件10中还可以包括对焦马达，对焦马达设于底座110，对焦马达用于驱动透镜组120沿第一方向运动，以实现自动对焦。对焦马达可以是音圈马达。
压电限位件130设于透镜组120，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动。
其中，第一状态可以是膨胀状态，第二状态是收缩状态。当向压电限位件130施加正向电信号时，压电限位件130膨胀，膨胀的压电限位件130抵于底座110，对透镜组120进行限位。当向限位件施加反向电信号时，压电限位件130收缩，收缩的压电限位件130解除对透镜组120的限位，透镜组120能够自由运动。
压电限位件130可以设于透镜组120朝向侧板的一侧，相应的，底座110的侧板的上设置有限位凹槽，当压电限位件130处于第一状态时，压电限位件130至少部分位于限位凹槽。
当成像组件10处于自动对焦过程中，压电限位件130处于第二状态，也即是压电限位件130接收反向电信号，压电限位件130收缩，透镜组120处于自由状态，对焦马达驱动透镜组120自动对焦。当成像组件10不工作时，压电限位件130处于第二状态，也即是压电限位件130接收正向电信号，压电限位件130膨胀，透镜组120被锁定，无法运动。
透镜组120和底座110滑动连接，并且透镜组120能够相对于底座110沿第一方向运动，底座110具有沿第一方向设置的侧板，侧板上设置有导电条191，导电条191沿第一方向设置，透镜组120上设置有导电触点192，导电触点192和压电限位件130连接，并且在透镜组120相对于底座110滑动时，导电触点192和导电条191接触。透镜组120沿第一方向的行程大于等于透镜组120沿第一方向的尺寸。通过将压电限位件130设于透镜组120，使得限位件在透镜组120在任意位置能够实现透镜组120 的限位。
压电限位件130包括：压电控制器131和压电体132，压电控制器131设于透镜组120；压电体132和压电控制器131连接，压电体132响应压电控制器131输出的电源信号在第一状态和第二状态之间切换。
其中，压电控制器131可以嵌于透镜组120，压电体132设于压电控制器131远离透镜组120的一侧。压电控制器131和压电体132电连接，压电控制器131向压电体132提供电源信号。
压电控制器131包括壳体和控制电路，壳体和透镜组120连接；控制电路设于壳体内，控制电路连接压电体132，控制电路向压电体132提供电信号。
压电控制器131还可以包括电路板，电路板设于壳体内，控制电路设于电路板上。电路板上可以设置有电源接口，电源接口用于连接电源，比如，电源接口可以和电子设备的电池或者电源管理电路连接。控制电路和电源接口连接，控制电路能够将电源信号转换为正向电信号或者反向电信号。
压电体132可以包括：第一电极层31、压电材料层32和第二电极层33，第一电极层31和压电控制器131连接，用于接收第一电源信号；压电材料层32设于第一电极层31的一侧；第二电极层33设于压电材料层32远离第一电极层31的一侧，和压电控制器131连接，用于接收第二电源信号。
第一电极层31设于透镜组120，压电材料层32被配置为当第一电极层31接收正极信号，第二电极层33接收负极信号时，压电材料膨胀。当第一电极层31接收负极信号，第二电极层33接收正极信号时，压电材料膨胀。
第一电极层31和第二电极层33分别连接控制电路，第一电极层31从控制电路接收第一电源信号，第二电极层33从控制电路接收第二电源信号。示例的，当压电限位件130处于第一状态时，第一电源信号为正极信号，第二电源信号为负极信号。当压电限位件130处于第二状态时，第一电源信号为负极信号，第二电源信号为正极信号。
第一电极层31的材料是导电材料，比如，第一电极材料可以是铝、铜、银、铝合金、不锈钢、氧化铟锡、钛合金和铝镁合金中的一种或者多种。第二电极层33的材料是导电材料，比如，第二电极材料可以是铝、铜、银、铝合金、不锈钢、氧化铟锡、钛合金和铝镁合金中的一种或者多种。第一导电层和第二导电层的材料可以相同或者不同。
在实际用于中，可以在第一电极层31远离压电材料层32的一侧设置绝缘膜，以实现第一电极层31和底座110的绝缘。在第二电极层33远离压电材料层32的一侧设置有绝缘膜，以实现第二电极层33和透镜组120的绝缘。
压电限位件130在膨胀时，至少部分伸入底座110上的凹槽内，为了使压电限位件130便于伸入凹槽，可以在压电体132上设置有导向部133，导向部133设于压电体132朝向透镜组120的一侧。
导向部133的截面积沿从透镜组120到侧板的方向逐渐减小，也即是导向部133呈渐变状，比如，导向部133可以具有相对的斜面，以便于压电限位件130伸入透镜 组120上的凹槽内。
可以通过第二电极层33形成导向部133，比如，可以将第二电极层33弯折形成导向部133。或者导向部133可以是独立设于第二电极层33远离压电材料层32一侧的结构。
当然在实际用应用中，压电限位件130也可以和底座110是一体结构，比如，压电限位件130形成于底座110的内壁，或者底座110可以由压电材料制成。
棱镜140和底座110连接，棱镜140能够相对于底座110转动，且棱镜140位于透镜组120的进光侧。棱镜140用于改变光线的传播方向，使得成像组件10可以用于潜望式成像。
棱镜140具有反射面，反射面将入射光线反射至透镜组120。比如，棱镜140可以是三棱镜140，并且棱镜140是直角三棱镜140。在直角三棱镜140的斜边所在的面上涂覆反射材料形成反射层，直角三棱镜140的一个直角边所在的面和电子设备上的进光孔相对，直角三菱镜的另一个直角边所在的面和透镜组120相对。
进一步的，为了驱动棱镜140转动，成像组件10还可以包括防抖马达和棱镜座141，棱镜座141设于底座110，棱镜140连接于棱镜座141。防抖马达和棱镜140连接，防抖马达驱动棱镜140转动。
图像传感器150设于透镜组120的出光侧。图像感器可以是CCD传感器或者CMOS传感器。传感器中包括阵列式分布的光电二极管、输出电路层和衬底，光电二极管和输出电路连接，光电二极管和输出电路封装于衬底。该光电二极管用于将光信号转为电信号，输出电路用于将电信号输出。
本公开实施例提供的成像组件10，通过在底座110和透镜组120之间设置压电限位件130，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，解决了电子设备存在异响的问题；当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动，也即是在自动对焦时压电限位件130不影响透镜组120运动，能够实现自动对焦。并且避免了由于透镜组120和底座110等器件碰撞而产生粉尘异物影响成像质量的问题，提高了电子设备的成像质量。
本公开示例性实施例还提供一种电子设备，电子设备可以包括上述的成像组件10。
其中，成像组件10包括可以底座110、透镜组120和压电限位件130，透镜组120设于底座110，且透镜组120能够相对于底座110运动；压电限位件130设于底座110，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动。
或者成像组件10包括可以底座110、透镜组120和压电限位件130，透镜组120设于底座110，且透镜组120能够相对于底座110运动；压电限位件130设于透镜组120，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，当 压电限位件130处于第二状态时，透镜组120能够相对于底座110运动。
本公开实施例提供的电子设备包括成像组件10，在成像组件10中通过在底座110和透镜组120之间设置压电限位件130，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，解决了电子设备存在异响的问题；当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动，也即是在自动对焦时压电限位件130不影响透镜组120运动，能够实现自动对焦。并且避免了由于透镜组120和底座110等器件碰撞而产生粉尘异物影响成像质量的问题，提高了电子设备的成像质量。
本公开实施例提供的电子设备可以是手机、平板电脑、笔记本电脑、台式电脑、个人数字助理、电子阅读器、智能手表、智能眼镜等具有成像功能的电子设备。
下面以电子设备为手机为例对本公开实施例提供的电子设备进行说明：
如图10所示，本公开实施例提供的电子设备还可以包括显示屏20、中框30、主板40、电池50以及后盖60。其中，显示屏20安装在中框30上，以形成电子设备的显示面，显示屏20作为电子设备的前壳。后盖60通过双面胶粘贴在中框30上，显示屏2010、中框30与后盖60形成一收容空间，用于容纳电子设备的其他电子元件或功能模块。同时，显示屏20形成电子设备的显示面，用于显示图像、文本等信息。
电子设备中的摄像头、接近传感器等功能模块可以隐藏在显示屏2010下方，而电子设备的指纹识别模组可以设置在电子设备的背面。
中框30可以为中空的框体结构。其中，中框30的材质可以包括金属或塑胶。主板40安装在上述收容空间内部。例如，主板40可以安装在中框30上，并随中框30一同收容在上述收容空间中。主板40上设置有接地点，以实现主板40的接地。主板40上可以集成有马达、麦克风、扬声器、受话器、耳机接口、通用串行总线接口(USB接口)、摄像头、接近传感器、环境光传感器、陀螺仪以及处理器等功能模块中的一个或多个。
同时，显示屏20可以电连接至主板40。主板40上设置有显示控制电路。显示控制电路向显示屏20输出电信号，以控制显示屏20显示信息。
电池50安装在上述收容空间内部。例如，电池50可以安装在中框30上，并随中框30一同收容在上述收容空间中。电池50可以电连接至主板40，以实现电池50为电子设备供电。其中，主板40上可以设置有电源管理电路。电源管理电路用于将电池50提供的电压分配到电子设备中的各个电子元件。
后盖60用于形成电子设备的外部轮廓。后盖60可以一体成型。在后盖60的成型过程中，可以在后盖60上形成后置摄像头孔、指纹识别模组安装孔等结构。
本公开实施例提供的成像组件10可以安装于主板40、中框30或者后盖60。比如，底座110可以连接于主板40、中框30或者后盖60。在后盖60上设置有进光孔，棱镜140和进光孔相对，棱镜140将进光孔输出的光线改变方向传输至透镜组120。图像传感器150可以连接于底座110，或者图像传感器150也可以连接于主板40或者中框30 等。进光孔上可以覆盖有镜头装饰件。
本公开实施例提供的电子设备包括成像组件10，在成像组件10中通过在底座110和透镜组120之间设置压电限位件130，压电限位件130包括第一状态和第二状态，当压电限位件130处于第一状态时，压电限位件130对透镜组120进行限位，以避免透镜组120相对于底座110运动，解决了电子设备存在异响的问题；当压电限位件130处于第二状态时，透镜组120能够相对于底座110运动，也即是在自动对焦时压电限位件130不影响透镜组120运动，能够实现自动对焦。并且避免了由于透镜组120和底座110等器件碰撞而产生粉尘异物影响成像质量的问题，提高了电子设备的成像质量。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (20)

  1. 一种成像组件，所述成像组件包括：
    底座；
    透镜组，所述透镜组设于所述底座，且所述透镜组能够相对于所述底座运动；
    压电限位件，所述压电限位件设于所述底座，所述压电限位件包括第一状态和第二状态，当所述压电限位件处于第一状态时，所述压电限位件和所述透镜组进行限位接触，当所述压电限位件处于第二状态时，所述压电限位件和所述透镜组不接触。
  2. 如权利要求1所述的成像组件，所述透镜组和所述底座滑动连接，并且所述透镜组能够相对于所述底座沿第一方向运动，所述底座具有沿所述第一方向设置的侧板，所述压电限位件设于所述侧板朝向所述透镜组的一侧。
  3. 如权利要求2所述的成像组件，所述透镜组朝向所述侧板的一面上设置有限位凹槽，当所述压电限位件处于所述第一状态时，所述压电限位件至少部分位于所述限位凹槽。
  4. 如权利要求1所述的成像组件，所述底座包括镜筒，所述透镜组设于所述镜筒内，且所述透镜组能够相对于所述镜筒运动，所述压电限位件设于所述镜筒的内壁。
  5. 如权利要求1所述的成像组件，所述压电限位件包括：
    压电控制器，所述压电控制器设于所述底座；
    压电体，所述压电体和所述压电控制器连接，所述压电体响应所述压电控制器输出的电源信号在所述第一状态和所述第二状态之间切换。
  6. 如权利要求5所述的成像组件，所述压电体包括：
    第一电极层，所述第一电极层和所述压电控制器连接，用于接收第一电源信号；
    压电材料层，所述压电材料层设于所述第一电极层的一侧；
    第二电极层，所述第二电极层设于所述压电材料层远离所述第一电极层的一侧，和所述压电控制器连接，用于接收第二电源信号。
  7. 如权利要求6所述的成像组件，所述第一电极层设于所述底座，并且所述压电材料层被配置为当所述第一电极层接收正极信号，且所述第二电极层接收负极信号时，所述压电材料层膨胀。
  8. 如权利要求7所述的成像组件，所述压电控制器包括：
    壳体，所述壳体和所述底座连接；
    控制电路，所述控制电路设于所述壳体内，所述控制电路分别连接所述第一电极层和所述第二电极层。
  9. 如权利要求5所述的成像组件，所述压电体上设置有导向部，所述导向部设于所述压电体朝向所述透镜组的一侧。
  10. 如权利要求1所述的成像组件，所述成像组件还包括：
    棱镜，所述棱镜和所述底座连接，所述棱镜能够相对于所述底座转动，且所述棱镜位于所述透镜组的进光侧；
    图像传感器，所述图像传感器设于所述透镜组的出光侧。
  11. 一种成像组件，所述成像组件包括：
    底座；
    透镜组，所述透镜组设于所述底座，且所述透镜组能够相对于所述底座运动；
    压电限位件，所述压电限位件设于所述透镜组，所述压电限位件至少具有第一状态和第二状态，当所述压电限位件处于第一状态时，所述压电限位件和所述透镜组接触，当所述压电限位件处于第二状态时，所述压电限位件和所述透镜组不接触。
  12. 如权利要求11所述的成像组件，所述透镜组和所述底座滑动连接，并且所述透镜组能够相对于所述底座沿第一方向运动，所述底座具有沿所述第一方向设置的侧板，所述侧板上设置有导电条，所述导电条沿所述第一方向设置，所述透镜组上设置有导电触点，所述导电触点和所述压电限位件电连接，并且在所述透镜组相对于所述底座滑动时，所述导电触点和所述导电条接触。
  13. 如权利要求11所述的成像组件，所述透镜组沿所述第一方向的行程大于等于所述透镜组沿所述第一方向的尺寸。
  14. 如权利要求12所述的成像组件，所述压电限位件包括：
    压电控制器，所述压电控制器设于所述透镜组；
    压电体，所述压电体和所述压电控制器连接，所述压电体响应所述压电控制器输出的电源信号在所述第一状态和所述第二状态之间切换。
  15. 如权利要求14所述的成像组件，所述压电体包括：
    第一电极层，所述第一电极层和所述压电控制器连接，用于接收第一电源信号；
    压电材料层，所述压电材料层设于所述第一电极层的一侧；
    第二电极层，所述第二电极层设于所述压电材料层远离所述第一电极层的一侧，和所述压电控制器连接，用于接收第二电源信号。
  16. 如权利要求15所述的成像组件，所述第一电极层设于所述透镜组，并且所述压电材料层被配置为当所述第一电极层接收正极信号，且所述第二电极层接收负极信号时，所述压电材料层膨胀。
  17. 如权利要求16所述的成像组件，所述压电控制器包括：
    壳体，所述壳体和所述透镜组连接；
    控制电路，所述控制电路设于所述壳体内，所述控制电路分别连接所述第一电极层和所述第二电极层。
  18. 如权利要求5所述的成像组件，所述压电体上设置有导向部，所述导向部的截面积沿从所述透镜组到所述侧板的方向逐渐减小。
  19. 如权利要求11所述的成像组件，所述成像组件还包括：
    棱镜，所述棱镜和所述底座连接，所述棱镜能够相对于所述底座转动，且所述棱镜位于所述透镜组的进光侧；
    图像传感器，所述图像传感器设于所述透镜组的出光侧。
  20. 一种电子设备，所述电子设备包括权利要求1-19任一所述的成像组件。
PCT/CN2022/135035 2021-12-02 2022-11-29 成像组件及电子设备 WO2023098660A1 (zh)

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