A zoom lens module and electronic equipment using the same
By using piezoelectric driving technology in the lens module, the problems of complex structure and low zoom accuracy in the existing lens optical zoom technology are solved, and higher zoom accuracy and speed are achieved.
Patent Information
- Application Number
- CN202010546490.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-15
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2040-06-15
AI Technical Summary
The existing lens optical zoom technology has problems such as complex structure, low zoom accuracy and slow displacement response.
A piezoelectric-driven zoom lens module adopts a piezoelectric unit to produce deformation according to the electrical signal through the piezoelectric unit, drives the lens to move, and realizes automatic zooming.
The structure of the zoom lens module is simplified, the control accuracy and reaction speed are improved, and the zoom accuracy and speed are achieved.
Smart Images

Figure CN111580240B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of optoelectronic devices, and in particular to a zoom lens module and electronic equipment using the same. Background Art
[0002] Lenses are the most commonly used optical imaging devices in daily life. People's requirements for image quality are constantly increasing. In order to obtain clear and accurate images, zoom plays an important role. Each upgrade of zoom technology can greatly improve the quality of input images and adapt to different focal length requirements of more complex scenes.
[0003] Existing optical zoom lenses usually use voice coil motors as the driving source. Voice coil motors use the electromagnetic force generated by a metal coil cutting a magnetic field and the static magnetostrictive force of a permanent magnet to control the movement of the lens. They have the following problems: (1) complex structure and (2) low zoom accuracy and slow displacement response. Summary of the invention
[0004] The object of the present invention is to provide a piezoelectrically driven zoom lens module and an electronic device using the same, so as to simplify the structure of the zoom lens module and improve the control accuracy and response speed.
[0005] In a first aspect, an embodiment of the present invention provides a zoom lens module, comprising:
[0006] At least one lens;
[0007] At least one transmission member, fixedly connected to the lens;
[0008] Conductive plate;
[0009] The piezoelectric unit is electrically connected to the conductive plate and is configured to receive an electrical signal input from the conductive plate to generate deformation to drive the lens to move.
[0010] Furthermore, the zoom lens module includes a plurality of lenses;
[0011] The multiple lenses are arranged in an array.
[0012] Furthermore, the piezoelectric unit comprises:
[0013] at least one piezoelectric body extending in the direction in which the lenses are arranged; and
[0014] A conductive circuit, electrically connected to the conductive plate, for transmitting an electrical signal of the conductive plate to different circuit sub-regions of the piezoelectric body;
[0015] Wherein, each of the circuit sub-areas uniquely corresponds to one transmission member.
[0016] Furthermore, the conductive circuit is formed on the piezoelectric body.
[0017] Furthermore, the at least one piezoelectric body comprises:
[0018] A first piezoelectric body formed into a long strip shape; and
[0019] The second piezoelectric body is formed into a long strip shape;
[0020] Wherein, the first piezoelectric body and the second piezoelectric body are arranged parallel to each other below the transmission component.
[0021] Furthermore, the transmission member comprises:
[0022] a lens fixing portion, formed in a circular ring shape, for fixing the lens; and
[0023] Two arm-shaped structures extend outward from two sides of the lens fixing portion, respectively, and are fixedly connected to the first piezoelectric body and the second piezoelectric body, respectively.
[0024] Furthermore, the zoom lens module also includes:
[0025] a housing; and
[0026] The base forms, together with the shell, an accommodating space for accommodating the lens, the transmission member and the piezoelectric unit.
[0027] Furthermore, the accommodating space includes a plurality of subspaces, and each subspace is used to accommodate one of the lenses and the corresponding transmission member.
[0028] Furthermore, the arm-shaped structure is formed in a straight line shape or a broken line shape.
[0029] In a second aspect, an embodiment of the present invention provides an electronic device, including:
[0030] The zoom lens module as described in the first aspect; and
[0031] A photosensitive element, arranged at one side of the zoom lens module, for converting a light signal passing through the zoom lens module into an electrical signal;
[0032] An image processing unit, electrically connected to the photosensitive element, and configured to process an electrical signal from the photosensitive element;
[0033] A display screen is electrically connected to the image processing unit and is used for imaging.
[0034] The present invention drives the automatic zoom of the lens module through the inverse piezoelectric effect. The piezoelectric unit generates corresponding local deformation according to different electrical signal inputs, thereby driving the corresponding lens displacement to complete the zoom. The structure is simple and easy to assemble, and has good zoom accuracy and speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
[0036] Figure 1 is a schematic diagram of a zoom lens module according to an embodiment of the present invention;
[0037] Figure 2 is a schematic diagram of the internal structure of the zoom lens module without the housing of the embodiment of the present invention;
[0038] Figure 3 is an exploded schematic diagram of a zoom lens module according to an embodiment of the present invention;
[0039] Figure 4 is a schematic diagram of a zoom module in an optional manner of embodiment 1 of the present invention;
[0040] Figure 5 is a schematic diagram of a zoom module in another optional manner of an embodiment of the present invention;
[0041] Figure 6 is a schematic structural diagram of a lens according to an embodiment of the present invention;
[0042] Figure 7 is a schematic diagram of a transmission member with a broken line-shaped arm according to an embodiment of the present invention;
[0043] Figure 8 is a schematic diagram of a transmission member with a linear arm according to an embodiment of the present invention;
[0044] Fig. 9 is a schematic diagram of a conductive plate according to an embodiment of the present invention;
[0045] Fig.10 is a schematic diagram of another conductive plate according to an embodiment of the present invention;
[0046] Fig.11 is a schematic diagram of a piezoelectric unit according to an embodiment of the present invention;
[0047] Fig.12 is a schematic diagram of the base structure of an embodiment of the present invention;
[0048] Fig.13 is a schematic diagram of the housing structure of an embodiment of the present invention;
[0049] Fig.14is a schematic diagram of an external electronic device of a zoom lens module according to an embodiment of the present invention;
[0050] Fig.15 It is a circuit block diagram of the zoom principle of an embodiment of the present invention. DETAILED DESCRIPTION
[0051] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. It is possible for a person skilled in the art to fully understand the present invention without the description of these details. In order to avoid confusing the essence of the present invention, known methods, processes, flows, components and circuits are not described in detail.
[0052] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.
[0053] At the same time, it should be understood that in the following description, "circuit" refers to a conductive loop composed of at least one element or subcircuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another element or an element / circuit is said to be "connected between" two nodes, it can be directly coupled or connected to another element or there can be an intermediate element, and the connection between the elements can be physical, logical, or a combination thereof. On the contrary, when an element is said to be "directly coupled to" or "directly connected to" another element, it means that there is no intermediate element between the two.
[0054] Unless the context clearly requires otherwise, words such as “include”, “including” and the like in the specification should be interpreted as including rather than being exclusive or exhaustive; that is, as meaning “including but not limited to”.
[0055] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0056] Figure 1-Figure 2 Schematic diagram of the zoom lens module structure of this embodiment. Figure 1 and Figure 2As shown, the zoom lens module described in this embodiment includes a lens 1, a transmission member 2, a piezoelectric unit 3 and a conductive plate 4. The transmission member 2 is fixedly connected to the lens 1, and is used to drive the displacement of the lens 1. The piezoelectric unit 3 is fixedly connected to the transmission member 2, and is used to receive an electrical signal to generate deformation to drive the lens 1 to move. The conductive plate 4 is electrically connected to the piezoelectric unit 3, and is used to transmit an electrical signal to the piezoelectric unit 3. When the external light source changes and the zoom lens module needs to be zoomed, the conductive plate 4 inputs a corresponding electrical signal to the piezoelectric unit 3. According to different electrical signal inputs, the piezoelectric unit 3 generates corresponding local deformation, and then drives the corresponding lens 1 to be displaced through the transmission member 2 to complete the zoom.
[0057] Figure 3-Figure 13 It is an assembly diagram of the zoom lens module of this embodiment. In this embodiment, the lens 1 is fixed to the transmission member 2, and the fixing method can be riveting, plugging or adhesive connection. Preferably, the connection is made by soldering or adhesive. This connection method prevents the two from relative slipping in the zoom direction of the lens and affecting the zoom quality. Among them, the number of lenses 1 is at least one. In this embodiment, the number of cameras is three, and they are arranged in a linear array. The advantage of this is that space can be saved to the greatest extent while ensuring the zoom quality of the lens.
[0058] In this embodiment, the transmission member 21 having the broken-line arm-shaped structure 21 b is used to drive the lens units on both sides to zoom, and the transmission member 22 having the straight-line arm-shaped structure 22 b is used to drive the lens unit in the middle to zoom.
[0059] like Figure 7 As shown, the transmission member 21 includes a lens fixing portion 21a and a broken line arm-shaped structure 21b. The lens fixing portion 21a is a circular ring corresponding to the lens 1. Setting it as a circular ring can save materials and reduce weight. The lens 1 is welded to the lens fixing portion 21a. The broken line arm-shaped structure 21b is located on both sides of the lens fixing portion 21a, and is fixed to the piezoelectric unit 3 by welding or gluing. The broken line arm-shaped structure 21b can make the transmission member 21 fixed to the piezoelectric unit 3 with a larger contact area, and the connection is stable. The lens fixing portion 21a and the broken line arm-shaped structure 21b can be formed integrally by a stamping process, or they can be formed separately and then fixedly connected by welding or gluing to obtain a stable connection to avoid affecting the zoom accuracy of the lens. Preferably, the transmission member 21 is made of metal material, so that the processing and manufacturing cost is low.
[0060] like Figure 8As shown, the transmission member 22 includes a lens fixing portion 22a and a linear arm-shaped structure 22b. The lens fixing portion 22a is a circular ring corresponding to the lens 1. Setting it in a circular ring shape can save materials and reduce weight. The lens 1 is welded to the lens fixing portion 22a. The linear arm-shaped structure 22b is located on both sides of the lens fixing portion 22a and is fixed to the piezoelectric unit 3 by welding or gluing. The linear arm-shaped structure 22b can fix the transmission member 22 on the piezoelectric unit 3 with a larger contact area, and the connection is stable. The lens fixing portion 22a and the linear arm-shaped structure 22b can be formed integrally by a stamping process, or they can be formed separately and then fixedly connected by welding or gluing to obtain a stable connection to avoid affecting the zoom accuracy of the lens. Preferably, the transmission member 22 is made of metal material, so that the processing and manufacturing cost is low.
[0061] Preferably, the transmission member 2 corresponds to the lens 1 one by one, that is, in this embodiment, the number of the transmission members 2 is three, including two zigzag arm transmission members 21 for driving the lenses on both sides and one linear arm transmission member 22 for driving the middle lens. The transmission member 2 is connected to the piezoelectric unit 3 through the zigzag arm 21b / linear arm 22b, and the deformation of the piezoelectric unit 3 is transmitted to the transmission member 2 through the zigzag arm 21b / linear arm 22b, so that the transmission member 2 is displaced and drives the lens 1 on the transmission member 2 to displace, thereby completing the zoom.
[0062] The piezoelectric unit 3 includes a piezoelectric body and a conductive circuit (not shown in the figure). In this embodiment, the piezoelectric body is made of a piezoelectric material having a piezoelectric effect. The conductive circuit is formed on one side surface of the piezoelectric body and is electrically connected to the conductive plate 4. Its function is to transmit the electrical signal input by the conductive plate 4 to different circuit sub-areas of the piezoelectric body. Each of the circuit sub-areas uniquely corresponds to a transmission member 2, that is, each circuit sub-area is an independent piezoelectric functional module. The piezoelectric body includes a first elongated piezoelectric body 31 and a second elongated piezoelectric body 32, which are arranged parallel to each other below the transmission member 2, as shown in FIG. Figure 3 The first piezoelectric body 31 and the second piezoelectric body 32 are made of piezoelectric ceramic material.
[0063] The conductive plate 4 is a so-called conductive circuit board, which can be implemented by a flexible printed circuit (FPC) or a printed circuit board (PCB). In this embodiment, the conductive plate 4 includes two conductive plates 41 for driving the lens units on both sides and two conductive plates 42 for driving the middle lens unit. Fig. 9 and Fig.10Each of the conductive plates 41 driving the lens units on both sides and the conductive plates 42 driving the middle lens unit are respectively arranged below the first piezoelectric body 31 and the second piezoelectric body 32 , and are electrically connected to the circuit sub-area on the first piezoelectric body 31 or the second piezoelectric body 32 .
[0064] The conductive plate 41 for driving the lens units on both sides is provided with four contacts 43, and the conductive plate 42 for driving the middle lens unit is provided with two contacts 43. Fig. 9 and Fig.10 As shown. The conductive plate 4 is electrically connected to the conductive circuit on the piezoelectric unit 3 through the contact 43. Among them, every two contacts 43 are used to drive one lens 1. Specifically, one contact 43 is electrically connected to the positive electrode of the conductive circuit, and the other contact 43 is electrically connected to the negative electrode of the conductive circuit. In other words, the upper surface of the piezoelectric ceramic is mechanically connected to the transmission member 2, and the lower surface is formed with a conductive circuit, which is electrically connected to the contact 43 on the conductive plate 4.
[0065] The input electrical signal, the circuit sub-area, the transmission member 2 and the lens 1 correspond one to one. That is, a set of electrical signals input by the conductive plate 4 can only be input to a unique corresponding circuit sub-area, and the circuit sub-area causes the piezoelectric body to produce corresponding deformation, affecting the unique corresponding transmission member 2 to produce displacement, driving the unique lens 1 corresponding to the transmission member 2 to complete zooming. Specifically, the two contacts 43 on the conductive plate 4 used to drive the same lens 1 are electrically connected to the positive and negative electrodes of the corresponding circuit sub-area on the piezoelectric unit 3. The conductive plate 4 inputs the electrical signal to the circuit sub-area corresponding to the piezoelectric unit 3 through the contacts 43, triggering the local piezoelectric effect of the piezoelectric unit 3 and generating local deformation. This local deformation will cause the corresponding transmission member 2 to move in the vertical direction, thereby driving the corresponding lens 1 and the photosensitive element 8 to move relative to each other to complete zooming.
[0066] The inverse piezoelectric effect is a phenomenon in which a piezoelectric material deforms along the direction of an external electric field when it is subjected to an external electric field. The non-polar dielectric molecules inside the piezoelectric material have non-overlapping average positive and negative charge centers. The vector sum of the non-overlapping average positive and negative charge centers and the charge difference between the two is called the electric dipole moment. When there is no external electric field, due to the anisotropy and dielectric properties of the piezoelectric material, although the electric dipole moment directions of the dielectric molecules in the piezoelectric material are arranged in a disorderly manner at the microscopic level, the vector sum of the electric dipole moment is zero, and no electrical properties are apparent at the macroscopic level. When an external electric field is applied, free charges with opposite electrical properties are generated on the opposite surfaces of the piezoelectric material along the direction of the external electric field. At the microscopic level, the electric dipole moment of the dielectric molecules inside the piezoelectric material is deflected along the direction of the external electric field. The positive and negative charge centers of the electric dipole moment and the free charges on the surface of the piezoelectric material repel each other and attract each other, causing the positive and negative charge centers of the electric dipole moment to undergo relative displacement along the direction of the external electric field. At the macroscopic level, the piezoelectric material deforms along the direction of the external electric field.
[0067] The conductive plate 4 transmits the current or voltage signal to the corresponding area of the piezoelectric body through the conductive circuit formed on the surface of the piezoelectric body, forming an electric field in the area. As a result, the piezoelectric material is driven to deform by the electric field, and then the transmission member 2 and the lens 1 fixedly connected to the transmission member 2 are displaced, thereby realizing the zoom operation.
[0068] exist Figure 3 In the implementation shown, a corresponding transmission member 2 is provided for each lens 1, so that each lens can be zoomed synchronously or independently.
[0069] Optionally, in the current multi-camera module, some lenses are usually set as zoom lenses, and the other lenses are wide-angle fixed-focus lenses. Therefore, corresponding transmission members 2 can also be set only for some lenses, and the remaining lenses are directly fixed on the base 6 and used as fixed-focus lenses.
[0070] like Figure 4 As shown, in an optional implementation, the conductive circuits on the first piezoelectric body 31 and the second piezoelectric body 32 are divided into two circuit sub-areas, that is, two groups of piezoelectric functional modules. The two groups of piezoelectric functional modules can realize independent control of the movement of the lenses on both sides, that is, a single piezoelectric body has two independent or synchronous signal control systems. Specifically, the two contacts 43 on the conductive plate 41 are respectively electrically connected to the positive and negative electrodes of the first circuit sub-area on the piezoelectric unit 3, and the other two contacts 43 are respectively electrically connected to the positive and negative electrodes of the second circuit sub-area on the piezoelectric unit 3. The conductive plate 41 inputs electrical signals to the first circuit sub-area or the second circuit sub-area through different contacts 43. The first circuit sub-area corresponds to the transmission member 22a and the lens 11a, and the second circuit sub-area corresponds to the transmission member 22b and the lens 11b. The piezoelectric unit 3 receives the electrical signal of the conductive plate 41 to generate local deformation to drive the transmission member 22a and the transmission member 22b to move in the vertical direction, thereby driving the lens 11a and the lens 11b to move, and the lens 1 does not move. The movement amplitudes of the lens 11a and the lens 11b may be the same or different.
[0071] like Figure 5 As shown, in another optional implementation, the conductive circuits on the first piezoelectric body 31 and the second piezoelectric body 32 have a unique circuit area, and the circuit area can realize independent intermediate lens movement. Specifically, the two contacts 43 on the conductive plate 42 are respectively electrically connected to the positive and negative electrodes of the circuit area on the piezoelectric unit 3, and the conductive plate 42 inputs electrical signals to the circuit area through the contacts 43. The circuit area corresponds to the transmission member 21a and the lens 12a. The piezoelectric unit 3 receives the electrical signal from the conductive plate 42 to generate local deformation to drive the transmission member 21a to move in the vertical direction, thereby driving the lens 12a to move, and the lens 1 does not move.
[0072] like Figure 3 As shown, the zoom lens module also includes a housing 5 and a base 6. Fig.12 As shown, the base 6 has a groove 62 corresponding to the shape of the piezoelectric unit 3 and the conductive plate 4, and the groove 62 is used to fix the piezoelectric unit 3 and the conductive plate 4. Preferably, the piezoelectric unit 3 and the conductive plate 4 can be fixed to the groove 62 by adhesion. The shell 5 is connected to the base 6 to protect the internal structure. Preferably, the inner surface of the shell 5 has a buckle (not shown in the figure), which is connected to the base 6 by the buckle, so as to facilitate disassembly and subsequent maintenance.
[0073] The housing 5 is connected to the base 6 to form a storage space for accommodating the lens 1, the transmission member 2 and the piezoelectric unit 3. Figure 3 and Fig.13 As shown, the accommodating space may include a plurality of subspaces, each of which is used to accommodate one of the lenses 1 and the corresponding transmission member 2. The housing 5 has a groove, which is used to fix the lens 7. The lens 7 is a plain lens, which is used to protect the lens 1. The groove has a hollow structure 51, which corresponds to the lens 1 one by one, so that the lens 1 can obtain a smooth field of view.
[0074] The housing 5 also has openings on both sides, and the openings are located on the end surface in contact with the base 6, for accommodating the conductive plate 4. One end of the conductive plate 4 is fixed in the housing 5, and the other end extends out of the housing 5. In this embodiment, the housing 5 has two openings on each side, such as Figure 3 and Fig.13 As shown, the opening in the middle is used to accommodate the conductive plate 41 , and the openings on both sides are used to accommodate the conductive plates 42 .
[0075] Fig.14 Schematic diagram of the zoom lens module of this embodiment connected to an external electronic device. Fig.14As shown, this figure takes a camera phone with an automatic zoom function as an example, which is only for illustration and is not used to limit the present invention. For those skilled in the art, the present invention can be applied to the lens module of all electronic devices with an automatic zoom function. The electronic device includes a photosensitive element 8, an image processing unit 9 and a display screen 10. Among them, the photosensitive element 8 is arranged on the other side of the base 6, and is used to convert the light signal passing through the zoom lens module into an electrical signal. In this embodiment, the base 6 has a hollow structure 61, and the hollow structure 61 corresponds to the lens 1 one by one, so that the light signal passing through the zoom lens module is transmitted to the photosensitive element 8 according to the corresponding relationship with the lens 1. The image processing device is located in the electronic device, electrically connected to the photosensitive element 8, and is used to perform imaging processing on the electrical signal of the photosensitive element 8 to generate an imaging electrical signal. The image processing device can be a main board, an integrated circuit board with an image processing function, or an independent electronic component. The display screen 10 is located in the electronic device, electrically connected to the image processing device, and is used to receive the imaging electrical signal of the image processing device and form an image.
[0076] The photosensitive element 8 collects images, and the image processing unit 9 determines whether focusing is required based on the images collected by the photosensitive element 8. When the image processing unit 9 determines that the light signal needs to be zoomed, it sends the corresponding zoom electrical signal to the conductive plate 4. The conductive plate controls different sub-circuit areas on the piezoelectric unit 3 according to different zoom electrical signals to cause the piezoelectric unit 3 to produce local deformation, drive the corresponding transmission member 2 and lens 1 to move, and complete the zoom. The photosensitive element 8 continuously forms an image through the lens and sends the imaged image to the image processing unit 9. At the same time, the image processing unit 9 can also synchronously send the imaged image to the display screen 10 of the electronic device for display.
[0077] The embodiment of the present invention drives the zoom of the lens through the inverse piezoelectric effect of the piezoelectric material. Compared with the traditional voice coil motor drive, it has a simpler structure, a wider output bandwidth, and a faster response speed under step excitation (that is, when facing complex optical environments where frequent zooming is required). In practical applications, it is not only easy to assemble, but also has higher zoom accuracy and speed when facing complex zoom environments.
[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A zoom lens module, characterized in that: include: at least one lens (1); At least one transmission member (2) fixedly connected to the lens (1); Conductive plate (4); A piezoelectric unit (3) is electrically connected to the conductive plate (4) and is configured to receive an electrical signal input from the conductive plate (4) to generate deformation to drive the lens (1) to move; The piezoelectric unit (3) comprises: The first piezoelectric body (31) and the second piezoelectric body (32) are both in the form of long strips and extend in parallel at intervals; as well as A conductive circuit formed on the lower surfaces of the first piezoelectric body (31) and the second piezoelectric body (32); The transmission member (2) comprises a first transmission member, the first transmission member comprises a lens fixing portion (21a, 22a) and two broken line arms (21b), the two broken line arms (21b) respectively extending from two sides of the lens fixing portion (21a, 22a); The folded line arm (21b) comprises a connecting section and a bending section, the connecting section is connected between the fixing portion (21a, 22a) and the bending section, the two bending sections are respectively attached to the upper surfaces of the first piezoelectric body (31) and the second piezoelectric body (32) and extend along the length direction of the first piezoelectric body (31) and the second piezoelectric body (32); The conductive plate (4) comprises two first conductive plates (41) arranged corresponding to the first piezoelectric body (31) and the second piezoelectric body (32), the first conductive plate (41) being arranged corresponding to the first transmission member and comprising two first contacts, the two first contacts being arranged at intervals along the length direction of the long strip structure and being electrically connected to the piezoelectric unit (3); The deformation of the piezoelectric unit (3) is transmitted to the lens fixing portion (21a, 22a) through the bending section, so as to drive the lens (1) to shift and zoom.
2. The zoom lens module according to claim 1, characterized in that: The zoom lens module comprises a plurality of lenses (1); The multiple lenses (1) are arranged in an array.
3. The zoom lens module according to claim 1, characterized in that: The piezoelectric unit (3) comprises: at least one piezoelectric body extending in the direction in which the lens (1) is arranged; and A conductive circuit, electrically connected to the conductive plate (4), and used to transmit the electrical signal of the conductive plate (4) to different circuit sub-areas of the piezoelectric body; Wherein, each of the circuit sub-areas uniquely corresponds to one transmission member (2).
4. The zoom lens module according to claim 3, characterized in that: The lens fixing portion (21a, 22a) is formed in a circular ring shape and is used to fix the lens (1); the transmission member (2) also includes: Two arm-shaped structures extend outward from two sides of the lens fixing portion, respectively, and are fixedly connected to the first piezoelectric body and the second piezoelectric body, respectively.
5. The zoom lens module according to claim 1, characterized in that: The zoom lens module also includes: Housing (5); A base (6) and the housing (5) form a housing space for accommodating the lens (1), the transmission member (2) and the piezoelectric unit (3).
6. The zoom lens module according to claim 5, characterized in that: The accommodating space comprises a plurality of subspaces, each subspace being used to accommodate one of the lenses (1) and the corresponding transmission member (2).
7. The zoom lens module according to claim 4, characterized in that: The arm-shaped structure is formed in a straight line shape or a broken line shape.
8. An electronic device, characterized in that: include: The zoom lens module as claimed in any one of claims 1 to 7; as well as A photosensitive element (8), arranged on one side of the zoom lens module, for converting a light signal passing through the zoom lens module into an electrical signal; An image processing unit (9), electrically connected to the photosensitive element (8), and used for processing the electrical signal of the photosensitive element (8); A display screen (10) is electrically connected to the image processing unit (9) and is used for imaging.
Citation Information
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Zoom lens module
CN111273421A
Zoom lens module and electronic equipment applying same
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