CN111596432B - Piezoelectric optical anti-shake device, camera device, and electronic apparatus - Google Patents
Piezoelectric optical anti-shake device, camera device, and electronic apparatus Download PDFInfo
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- CN111596432B CN111596432B CN202010575415.7A CN202010575415A CN111596432B CN 111596432 B CN111596432 B CN 111596432B CN 202010575415 A CN202010575415 A CN 202010575415A CN 111596432 B CN111596432 B CN 111596432B
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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
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- Optics & Photonics (AREA)
- Adjustment Of Camera Lenses (AREA)
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Abstract
The present disclosure provides a piezoelectric optical anti-shake device, including: a spherical seat for supporting the lens module; a base forming a space to accommodate a spherical seat, the spherical seat being drivable to rotate relative to the base; the rolling support part is arranged between the outer side wall of the spherical seat and the inner side wall of the base; and the piezoelectric driving device is arranged between the spherical seat and the base and drives the spherical seat to rotate relative to the base. The disclosure also provides a camera device and an electronic device.
Description
Technical Field
The present disclosure belongs to the technical field of optical anti-shake, and particularly relates to a piezoelectric optical anti-shake device, a camera device and an electronic apparatus.
Background
As the definition and the magnification of an image captured by an apparatus having a camera function, such as a camera or a mobile phone, are improved, the structure of the apparatus becomes more and more complex, the weight thereof is gradually increased, and the reliability is challenged.
In the prior art, an Optical Image Stabilization (OIS) device in a camera or a mobile phone and other equipment with a camera function is complex in structure, and is not beneficial to reducing the mass and/or the size of the camera or the mobile phone and other equipment with the camera function.
There is a need for a new optical anti-shake apparatus that overcomes the above-mentioned problems.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a piezoelectric optical anti-shake apparatus, a camera apparatus, and an electronic device.
The piezoelectric optical anti-shake device, the camera device and the electronic equipment are realized through the following technical scheme.
According to an aspect of the present disclosure, there is provided a piezoelectric optical anti-shake apparatus including: a spherical seat for supporting a lens module; a base forming a space to accommodate the spherical seat, the spherical seat being drivable to rotate relative to the base; a rolling support portion disposed between an outer sidewall of the spherical seat and an inner sidewall of the base; and the piezoelectric driving device is arranged between the spherical seat and the base and drives the spherical seat to rotate relative to the base.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the first end surface and the second end surface of the spherical seat are both flat surfaces, and the outer side surface of the spherical seat is a part of a spherical surface.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the number of the piezoelectric driving devices is at least two, at least one piezoelectric driving device drives the spherical seat to rotate around a first axis relative to the base, and at least another piezoelectric driving device drives the spherical seat to rotate around a second axis relative to the base; wherein the direction of the first axis is perpendicular to the direction of the second axis, and the first axis and the second axis are located in a plane perpendicular to the optical axis direction of the lens module.
According to the piezoelectric type optical anti-shake device of at least one embodiment of the present disclosure, a rolling groove is provided on an inner sidewall of the base, and the rolling groove is configured to accommodate a portion of the rolling support portion.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the rolling support portions are spheres, the number of the rolling support portions is at least three, and the number of the rolling grooves is the same as the number of the rolling support portions.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the piezoelectric driving device includes a piezoelectric element, a rod-shaped portion, and an elastic portion, the piezoelectric element is provided with a groove, the rod-shaped portion is provided in the groove, and the piezoelectric element is provided on an inner side wall of the base through the elastic portion; the rod-shaped part is in contact with the outer side wall of the spherical seat, and the rod-shaped part drives the spherical seat through the electrified deformation of the piezoelectric element.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the elastic portion is silicon rubber.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the rolling groove allows the rolling support to be held at a predetermined position for rolling.
According to the piezoelectric optical anti-shake device of at least one embodiment of the present disclosure, the rolling support portion is provided apart from the piezoelectric driving device in the optical axis direction.
According to the piezoelectric type optical anti-shake device of at least one embodiment of the present disclosure, the rolling support portion is disposed below a middle portion of the inner side wall of the base, so that the rolling support portion is in contact with the middle portion of the spherical seat below.
According to the piezoelectric type optical anti-shake device of at least one embodiment of the present disclosure, the piezoelectric driving device is disposed above the middle of the inner side wall of the base, so that the piezoelectric driving device is in contact with the middle of the spherical seat.
The piezoelectric optical anti-shake apparatus according to at least one embodiment of the present disclosure further includes a sensor assembly disposed between the bottom wall of the base and the bottom wall of the spherical seat, and measuring a relative position change between the spherical seat and the base.
According to the piezoelectric type optical anti-shake device of at least one embodiment of the present disclosure, a lens module mounting portion is formed on the spherical seat, and the lens module mounting portion is used for mounting a lens module.
According to the piezoelectric type optical anti-shake apparatus of at least one embodiment of the present disclosure, the lens module mounting part is a lens module mounting groove.
According to another aspect of the present disclosure, there is provided a camera apparatus including the piezoelectric optical anti-shake apparatus according to any one of the above aspects.
According to still another aspect of the present disclosure, there is provided an electronic apparatus including the camera device described above.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is one of schematic structural diagrams of a piezoelectric driving device of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Fig. 2 is a second schematic structural diagram of a piezoelectric driving device of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Fig. 3 is a third schematic structural diagram of a piezoelectric driving device of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Fig. 4 is one of schematic operation diagrams of a piezoelectric driving device of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Fig. 5 is a second schematic operation diagram of a piezoelectric driving device of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Fig. 6 is a schematic electrode surface diagram of a piezoelectric driving device of a piezoelectric optical anti-shake device according to an embodiment of the present disclosure.
Fig. 7 is a schematic structural diagram of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Fig. 8 is a side view of the piezoelectric optical anti-shake apparatus shown in fig. 7.
Fig. 9 is a schematic view of an operating state of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
Description of the reference numerals
10 piezoelectric type optical anti-shake device
100 piezoelectric driving device
101 piezoelectric element
101a first part of a piezoelectric element
101b second part of the piezoelectric element
101c third part of the piezoelectric element
101d fourth part of piezoelectric element
1011 electrode terminal
1012 ground terminal
102 rod-shaped part
103 groove
104 elastic part
11 base
12 spherical seat
121 lens module mounting part
13 rolling support part
14 rolling groove
15 sensor assembly.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., "in the sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
Referring first to fig. 7, fig. 7 is a schematic structural diagram of a piezoelectric optical anti-shake apparatus 100 according to an embodiment of the present disclosure. Fig. 7 is a front view of the piezoelectric optical anti-shake apparatus 100, in which a direction perpendicular to the paper surface is an optical axis direction.
As shown in fig. 7, the piezoelectric optical anti-shake apparatus 10 according to the present embodiment includes: a spherical seat 12, the spherical seat 12 being for supporting a lens module; a base 11, the base 11 forming a space for accommodating a spherical seat 12, the spherical seat 12 being capable of being driven to rotate relative to the base 11; a rolling support 13, the rolling support 13 being disposed between an outer sidewall of the spherical seat 12 and an inner sidewall of the base 11; and a piezoelectric driving device 100, wherein the piezoelectric driving device 100 is arranged between the spherical seat 12 and the base 11, and drives the spherical seat 12 to rotate relative to the base.
The base 11 may be a rectangular parallelepiped, and has four side walls and a bottom wall, and the four side walls and the bottom wall may be an integral structure.
It will be understood by those skilled in the art that the lens module may include a lens and a lens supporting frame body, or further include an auto-focusing device, and the present disclosure is not particularly limited to the structure of the lens module.
A lens module mounting portion 121 is formed on the spherical seat 12 of the piezoelectric optical anti-shake device 10, and the lens module mounting portion 121 is used for mounting a lens module.
The lens module mounting part 121 may be a lens module mounting groove, i.e., a groove part formed on the spherical seat 12 to form a receiving space of the lens module.
The lens module mounting groove may be a square groove or a circular groove.
The rolling support 13 is provided between the outer side wall of the spherical seat 12 and the inner side wall of the base 11, so that the rolling support 13 provides at least support to the spherical seat 12 when the spherical seat 12 is driven to rotate relative to the base 11.
Wherein the piezoelectric driving device 100 may be disposed on an inner sidewall of the base 11.
The structure and the operation principle of the piezoelectric driving device 100 of the piezoelectric optical anti-shake apparatus 10 according to the present disclosure will be described in detail with reference to fig. 1 to 6.
Referring to fig. 1, a schematic structural diagram of a piezoelectric driving device 100 of a piezoelectric optical anti-shake device 10 according to an embodiment of the present disclosure is provided, and the schematic structural diagram is a front structural diagram of the piezoelectric driving device 100. Fig. 2 is a side view of the schematic configuration of the piezoelectric actuator 100 shown in fig. 1, and fig. 3 is a bottom view of the schematic configuration of the piezoelectric actuator 100 shown in fig. 2.
As shown in fig. 1 to 3, the piezoelectric driving device 100 may include a piezoelectric element 101 and a rod portion 102.
The piezoelectric element 101 may be composed of four parts, and the specific composition will be described in detail below.
The rod-shaped portion 102 may be made of metal, may be in the shape of a circular rod, and may be provided on the piezoelectric element 101.
At the position where the rod-shaped portion of the piezoelectric element 101 is provided, a groove 103 may be provided. The shape of the recess 103 may be triangular, but may also be other shapes. The groove 103 is used to accommodate a part of the rod portion 102, and the groove 103 may also be filled with an adhesive resin to fix the rod portion 102 to the piezoelectric element 101.
When the piezoelectric element 101 is deformed by electricity, the rod-shaped portion 102 is moved. This will be explained with reference to fig. 2.
The number of the rod-shaped portions 102 may be two, and correspondingly, the number of the grooves 103 may also be two.
Fig. 4 is one of the operation diagrams of the piezoelectric driving device 100 of the piezoelectric optical anti-shake device 10 according to the embodiment of the present disclosure, that is, the operation diagram in the first power-on state.
Fig. 5 is a second schematic operation diagram of the piezoelectric driving device 100 of the piezoelectric optical anti-shake device 10 according to the embodiment of the present disclosure, that is, a schematic operation diagram in the second power-on state.
As shown in fig. 4 and 5, the piezoelectric element 101 includes four parts: a first portion 101a, a second portion 101b, a third portion 101c and a fourth portion 101 d.
As shown in fig. 4, when the second portion 101b and the third portion 101c are energized, the piezoelectric driving device 100 will act in the direction shown in fig. 4.
As shown in fig. 5, when the first portion 101a and the fourth portion 101d are energized, the piezoelectric driving device 100 will act in the direction shown in fig. 5.
Fig. 6 shows a schematic electrode surface of the piezoelectric actuator 100, which may be provided with an electrode terminal 1011 and a ground terminal 1012 for supplying power to the piezoelectric element 101 of the piezoelectric actuator 100 via the electrode terminal.
Referring again to fig. 7, according to a preferred embodiment of the present disclosure, the extending direction of the rod-shaped portion 102 of the piezoelectric driving device 100 is perpendicular to the optical axis direction.
According to the preferred embodiment of the present disclosure, the piezoelectric driving device 100 of the piezoelectric optical anti-shake device 10 includes a piezoelectric element 101, a rod 102, and an elastic part 104, the piezoelectric element 101 is provided with a groove 103, the rod 102 is disposed in the groove 103, and the piezoelectric element 101 is disposed on the inner sidewall of the base 11 through the elastic part 104; the rod-shaped portion 102 is in contact with the outer side wall of the spherical seat 12, and the energized deformation of the piezoelectric element 101 causes the rod-shaped portion to drive the spherical seat 12.
It will be understood by those skilled in the art that the piezoelectric driving unit 100 is fixedly disposed on the inner sidewall of the base 11 through the elastic portion 104.
Preferably, the elastic portion 104 is silicone rubber.
Preferably, the number of the rod-shaped portions 102 of the piezoelectric driving device 100 is two, and the two rod-shaped portions 102 are arranged in parallel.
The piezoelectric optical anti-shake apparatus 10 according to still another embodiment of the present disclosure includes: a spherical seat 12, the spherical seat 12 being for supporting a lens module; the base 11, the base 11 forms the space to hold the spherical seat 12, the spherical seat 12 can be driven to rotate relative to the base 11, the first end face and the second end face of the spherical seat 12 are both flat, the outer side face of the spherical seat 12 is a part of the sphere; a rolling support 13, the rolling support 13 being disposed between an outer sidewall of the spherical seat 12 and an inner sidewall of the base 11; and a piezoelectric driving device 100, wherein the piezoelectric driving device 100 is arranged between the spherical seat 12 and the base 11, and drives the spherical seat 12 to rotate relative to the base.
The number of the piezoelectric driving devices 100 of the piezoelectric optical anti-shake device 10 of the above embodiment is at least two, at least one piezoelectric driving device 100 drives the spherical seat 12 to rotate around the first axis relative to the base 11, and at least another piezoelectric driving device 100 drives the spherical seat 12 to rotate around the second axis relative to the base 11; wherein the direction of the first axis is perpendicular to the direction of the second axis, and the first axis and the second axis are located in a plane perpendicular to the optical axis direction of the lens module.
In fig. 7, two piezoelectric drivers 100 are exemplarily disposed at two adjacent corners of the inner sidewall of the base 11.
Two piezoelectric drivers 100 or more piezoelectric drivers 100 may be disposed on the inner sidewall of the base 11, so long as they can drive the spherical seat 12 to rotate around the first axis or around the second axis perpendicular to the first axis.
Preferably, the number of the piezoelectric driving devices 100 is two, wherein one piezoelectric driving device 100 drives the spherical seat 12 to rotate around a first axis relative to the base 11, and the other piezoelectric driving device 100 drives the spherical seat 12 to rotate around a second axis relative to the base 11.
In the above embodiment, the inner wall of the base 11 of the piezoelectric optical anti-shake device 10 is provided with the rolling groove 14, and the rolling groove 14 is used for accommodating a part of the rolling support 13.
According to the preferred embodiment of the present disclosure, the rolling support 13 of the piezoelectric optical anti-shake device 10 is a spherical body, the number of the rolling support 13 is at least three, and the number of the rolling grooves 14 is the same as the number of the rolling support 13.
In fig. 7, three rolling support portions 13 and three rolling grooves 14 are provided, and the three rolling support portions 13 are uniformly provided between the base 11 and the spherical seat 12.
Three rolling grooves 14 are uniformly formed on the inner sidewall of the base 11.
The rolling groove is provided so that the rolling support portion 13 is held in a predetermined position for rolling.
As can be understood from fig. 7 and 8, the rolling groove 14 is a groove, and the rolling groove 14 and the rolling support portion 13 have a substantially matching shape. The rolling groove 14 smoothly contacts the rolling support portion 13.
In the above embodiment, preferably, the rolling support portion 13 of the piezoelectric optical anti-shake device 10 is provided at a distance from the piezoelectric drive device 100 in the optical axis direction, and accordingly, the rolling groove 14 of the piezoelectric optical anti-shake device 10 is also provided at a distance from the piezoelectric drive device 100 in the optical axis direction.
Fig. 8 shows that the rolling support 13 and the rolling groove 14 of the piezoelectric optical anti-shake device 10 are each provided at a distance from the piezoelectric drive device 100 in the optical axis direction.
According to the piezoelectric optical anti-shake device 10 of still another embodiment of the present disclosure, the rolling support 13 is disposed under the middle of the inner sidewall of the base 11, so that the rolling support 13 is in contact with the middle of the spherical seat 12; and the piezoelectric driving unit 100 is disposed on the upper middle portion of the inner sidewall of the base 11 so that the piezoelectric driving unit 100 is in contact with the upper middle portion of the spherical seat 12.
According to the piezoelectric optical anti-shake device 10 of still another embodiment of the present disclosure, the rolling support 13 is provided at the middle-lower portion of the inner sidewall of the base 11 such that the rolling support 13 is in contact with the middle-lower portion of the spherical seat 12; and the piezoelectric driving device 100 is disposed at the middle upper portion of the inner sidewall of the base 11 such that the piezoelectric driving device 100 is in contact with the middle upper portion of the spherical seat 12.
According to the piezoelectric optical anti-shake device 10 of still another embodiment of the present disclosure, the rolling support 13 is provided at the lower portion of the inner sidewall of the base 11 such that the rolling support 13 is in contact with the lower portion of the spherical seat 12; and the piezoelectric driving unit 100 is disposed at an upper portion of an inner sidewall of the base 11 such that the piezoelectric driving unit 100 is in contact with an upper portion of the ball socket 12.
According to still another embodiment of the present disclosure, the piezoelectric optical anti-shake apparatus 10 further includes a sensor assembly 15, the sensor assembly 15 being disposed between the bottom wall of the base 11 and the bottom wall of the spherical seat 12, and measuring a relative position change between the spherical seat 12 and the base 11.
Preferably, the sensor assembly 15 is disposed on the bottom wall of the base 11.
The driving of the spherical seat 12 by the piezoelectric driving device 100 can be controlled based on the measured amount of change in the relative position between the spherical seat 12 and the base 11.
Fig. 9 is a schematic view of an operating state of a piezoelectric optical anti-shake apparatus according to an embodiment of the present disclosure.
The operation principle of the piezoelectric optical anti-shake apparatus disclosed is explained with reference to fig. 7 and 9.
Two piezoelectric driving devices 100 are shown in fig. 7, when the piezoelectric driving device 100 at the upper part in fig. 7 drives the spherical seat 12, the spherical seat 12 can rotate around the X axis in fig. 7, and the direction (clockwise or counterclockwise) of the rotation of the spherical seat 12 around the X axis can be controlled by controlling the power-on state of the piezoelectric driving device.
When the piezoelectric driving device 100 in the lower part of fig. 7 drives the ball socket 12, the ball socket 12 can rotate around the Y axis of fig. 7, and the direction (clockwise or counterclockwise) in which the ball socket 12 rotates around the Y axis can be controlled by controlling the power-on state of the piezoelectric driving device.
Therefore, it is possible to realize the rotation of the spherical seat 12 with respect to the base 11 in both directions and any rotation amount in both directions by driving one piezoelectric driving device alone or driving both piezoelectric driving devices simultaneously, and by controlling the deformation amount of the piezoelectric element 101 of the piezoelectric driving device 100.
For example, in fig. 9, the piezoelectric driving device 100 drives the spherical seat 12 by controlling one of the piezoelectric driving devices 100, so that the central axis of the spherical seat 12 moves from the E position to the F position.
Because this disclosed piezoelectric type optics anti-shake device, just use piezoelectric drive arrangement and roll supporting part just to realize the support and the rotation of two directions and any rotation volume of spherical seat, very big simplification anti-shake device's structure for very thin that anti-shake device can be done (for example, the vertical direction along the paper in figure 8, very thin that anti-shake device did), and, because piezoelectric type optics anti-shake device has adopted the cooperation of piezoelectric drive arrangement and roll supporting part, make under the condition that piezoelectric drive arrangement does not drive spherical seat, do not need extra part or consumption to keep spherical seat, the anti-shake device that the consumption was zero when having realized the drive and stopped.
According to an embodiment of the present disclosure, there is provided a camera device including the piezoelectric optical anti-shake device 10 according to any one of the above embodiments.
According to an embodiment of the present disclosure, there is provided an electronic apparatus including the camera device described above.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (9)
1. A piezoelectric optical anti-shake apparatus, comprising:
a spherical seat for supporting a lens module;
a base forming a space to accommodate the spherical seat, the spherical seat being drivable to rotate relative to the base;
a rolling support portion disposed between an outer sidewall of the spherical seat and an inner sidewall of the base; and
the piezoelectric driving device is arranged between the spherical seat and the base and drives the spherical seat to rotate relative to the base;
the number of the piezoelectric driving devices is at least two, at least one piezoelectric driving device drives the spherical seat to rotate around a first axis relative to the base, and at least one other piezoelectric driving device drives the spherical seat to rotate around a second axis relative to the base;
wherein the direction of the first axis is perpendicular to the direction of the second axis, and the first axis and the second axis are located in a plane perpendicular to the optical axis direction of the lens module.
2. The piezoelectric optical anti-shake apparatus according to claim 1, wherein the first end surface and the second end surface of the spherical seat are both flat surfaces, and the outer side surface of the spherical seat is a part of a spherical surface.
3. The piezoelectric optical anti-shake apparatus according to claim 1 or 2, wherein a rolling groove is provided on an inner sidewall of the base, the rolling groove being configured to receive a portion of the rolling support.
4. The piezoelectric optical anti-shake apparatus according to claim 3, wherein the rolling support portions are spheres, the number of the rolling support portions is at least three, and the number of the rolling grooves is the same as the number of the rolling support portions.
5. The piezoelectric optical anti-shake apparatus according to claim 1, wherein the piezoelectric driving device includes a piezoelectric element, a rod-shaped portion, and an elastic portion, the piezoelectric element is provided with a groove, the rod-shaped portion is provided in the groove, and the piezoelectric element is provided on an inner side wall of the base through the elastic portion; the rod-shaped part is in contact with the outer side wall of the spherical seat, and the rod-shaped part drives the spherical seat through the electrified deformation of the piezoelectric element.
6. The piezoelectric optical anti-shake apparatus according to claim 3, wherein the rolling grooves allow the rolling support to be held in a predetermined position for rolling.
7. The piezoelectric optical anti-shake apparatus according to claim 1 or 2, wherein the rolling support portion is provided spaced apart from the piezoelectric drive apparatus in an optical axis direction.
8. A camera device comprising the piezoelectric optical anti-shake apparatus according to any one of claims 1 to 7.
9. An electronic device characterized by comprising the camera apparatus of claim 8.
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|---|---|---|---|---|
| CN202956525U (en) * | 2012-11-06 | 2013-05-29 | 瑞声声学科技(苏州)有限公司 | Lens driving device |
| CN110794547A (en) * | 2019-08-31 | 2020-02-14 | 东莞睿恩科技有限公司 | Lens driving device of ball type voice coil motor, camera device and electronic apparatus |
| CN111103670A (en) * | 2020-01-08 | 2020-05-05 | 睿恩光电有限责任公司 | Actuator having auto-focusing function and optical image stabilizing function |
| CN111142309A (en) * | 2020-01-16 | 2020-05-12 | 睿恩光电有限责任公司 | Piezoelectric optical anti-shake mechanism, camera device, and electronic apparatus |
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