Liquid lens zoom device, control method, liquid lens, and electronic device

Abstract

The present disclosure relates to a liquid lens zoom device, a control method, a liquid lens and an electronic device, comprising: a first container for containing liquid, the volume of the liquid in the first container corresponding to the focal length of the liquid lens; at least one second container, the first container and each second container being in communication, and the focal length of the liquid lens changing correspondingly when the liquid in the second container flows into or out of the first container. The liquid in the second container can flow into or out of the first container, which causes the focal length of the liquid lens to change correspondingly, and the liquid in the first container does not shake, thereby improving the imaging quality and the imaging speed, and there is no electromagnetic structure to cause magnetic interference.

Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and in particular to a zoom device, control method, liquid lens, and electronic equipment for a liquid lens. Background Technology

[0002] With the continuous development of technology, people have increasingly higher requirements for the imaging technology, screen technology, and charging technology of electronic devices. Among these, imaging technology, as a key element in recording life, has been widely used in daily life. To meet consumers' ultimate pursuit of imaging capabilities and simultaneously achieve telephoto and macro functions, liquid lenses have attracted the attention of developers.

[0003] Currently, most liquid lens zoom mechanisms work by using a voice coil motor to drive a mover, thus changing the lens's focal length. However, achieving continuous zoom in this way places high demands on the reliability and precision of the voice coil motor's drive. Furthermore, to obtain stronger thrust during operation, the voice coil motor's magnetic structure needs to be reinforced, which not only increases the motor's size but also causes magnetic interference. Summary of the Invention

[0004] This disclosure provides a zoom device, control method, liquid lens, and electronic device for a liquid lens.

[0005] According to a first aspect of the present disclosure, a zoom device for a liquid lens is provided, comprising:

[0006] A first container is used to hold liquid, the volume of which corresponds to the focal length of the liquid lens;

[0007] At least one second container, wherein the first container is in communication with each of the second containers, and the focal length of the liquid lens changes accordingly as liquid in the second container enters or exits the first container.

[0008] In some embodiments, the zoom device includes:

[0009] A first film covers the first opening of the first container, the degree of deformation of the first film corresponds to the curvature of the first film, and the curvature of the first film corresponds to the focal length of the liquid lens;

[0010] When liquid in the second container moves in or out of the first container, the volume of liquid in the first container changes, and the first film undergoes a corresponding deformation.

[0011] In some embodiments, the second container includes:

[0012] An active module is located inside the second container. During the process of the active module moving according to the received focusing command, the liquid in the second container moves in and out of the first container.

[0013] In some embodiments, the activity module includes:

[0014] A piston, located inside the second container, is used to squeeze the liquid in the second container into the first container when it moves toward the first container;

[0015] When the piston moves in a direction away from the first container, at least a portion of the liquid flows back from the first container to the second container.

[0016] In some embodiments, the activity module includes:

[0017] A telescopic component, the first end of which is connected to the piston, is used so that the piston moves with the telescopic component during the telescopic process.

[0018] In some embodiments, the second container includes:

[0019] Sealing cap;

[0020] The second end of the telescopic component is fixedly connected to the sealing cap.

[0021] In some embodiments, the second container further includes:

[0022] A drive module, connected to the telescopic component, is used to provide drive voltage to the telescopic component;

[0023] The telescopic component includes stacked piezoelectric ceramic sheets.

[0024] In some embodiments, when the direction of the voltage provided by the driving voltage is opposite to the polarization direction of the telescopic member, the telescopic member extends, and the piston follows the telescopic member toward the first container;

[0025] When the direction of the voltage provided by the driving voltage is the same as the polarization direction of the telescopic member, the telescopic member retracts, and the piston will follow the telescopic member to move in the direction away from the first container.

[0026] In some embodiments, the second container includes:

[0027] A sealing ring is fitted onto the piston on the side that contacts the inner wall of the second container.

[0028] In some embodiments, the piston includes:

[0029] A groove is formed on the side of the piston that contacts the inner wall of the second container;

[0030] The sealing ring is fitted inside the groove.

[0031] In some embodiments, the zoom device further includes:

[0032] A second film covers a fourth opening in the first container, the fourth opening being opposite to the first opening;

[0033] A support member, located on the side of the second film facing away from the first container, is used to support the second film.

[0034] In some embodiments, the second container is located on the outer wall forming the first container;

[0035] The intervals between each of the second containers are the same.

[0036] In some embodiments, the number of the second containers is positively correlated with the focal length of the liquid lens.

[0037] In some embodiments, the second container includes:

[0038] The second opening is opposite to the third opening of the first container; the second container communicates with the first container through the second opening and the third opening.

[0039] The orientation of the third opening is perpendicular to the orientation of the first opening.

[0040] According to a second aspect of the present disclosure, a control method is provided, the control method being applied to the zoom device described in the first aspect, the zoom device being applied to a liquid lens, the method comprising:

[0041] Obtain focus control command;

[0042] According to the focusing command, at least one second container in the zoom device is controlled to enter the working state;

[0043] The second container, which enters the working state, is used to squeeze the liquid in the second container into the first container in the focusing device, wherein the volume of the liquid in the first container corresponds to the focal length of the liquid lens.

[0044] In some embodiments, controlling at least one second container in the zoom device to enter a working state according to the focusing command includes:

[0045] When the focusing command instructs to reduce the focal length of the liquid lens, at least one of the second containers in the zoom device is controlled to enter the operating state.

[0046] In some embodiments, the method further includes:

[0047] Determine the continuous operating duration of each of the second containers;

[0048] Based on the continuous working duration of each of the second containers, control each of the second containers to switch between the working state and the non-working state;

[0049] During the switching process, the number of second containers that maintain the working state remains unchanged.

[0050] In some embodiments, controlling the switching between the working state and the non-working state of each of the second containers based on the continuous working duration of each of the second containers includes:

[0051] The second container, whose continuous working duration is greater than or equal to a preset duration threshold and is in the working state, is switched from the working state to the non-working state;

[0052] The second container is kept in the working state until the continuous working time is greater than or equal to the preset time threshold.

[0053] According to a third aspect of the present disclosure, a liquid lens is provided, the liquid lens including the zoom device described in the first aspect.

[0054] According to a fourth aspect of the present disclosure, an electronic device is provided, the electronic device including the liquid lens described in the third aspect.

[0055] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0056] The zoom device for the liquid lens in this embodiment includes: a first container and at least one second container; the first container is used to contain liquid, and the first container can be connected to each of the second containers. Since the capacity of the liquid in the first container corresponds to the focal length of the liquid lens, the focal length of the liquid lens can be changed accordingly when the liquid in the second container enters or leaves the first container.

[0057] Firstly, by connecting each of the second containers to the first container, the liquid in the second container can enter and exit the first container, which will cause a corresponding change in the focal length of the liquid lens, and the liquid in the first container will not vibrate, thereby improving the imaging quality and increasing the imaging speed. Secondly, by allowing the liquid in the second container to enter and exit the first container, the focal length of the liquid lens changes, and since there is no electromagnetic structure, no magnetic interference will be generated.

[0058] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0059] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0060] Figure 1 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 1 ;

[0061] Figure 2 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 2 ;

[0062] Figure 3 This is a structural cross-section of the second container shown according to an exemplary embodiment. Figure 1 ;

[0063] Figure 4 This is a structural cross-section of the second container shown according to an exemplary embodiment. Figure 2 ;

[0064] Figure 5 This is a structural cross-section of the second container shown according to an exemplary embodiment. Figure 3 ;

[0065] Figure 6 This is a schematic diagram of the piston structure according to an exemplary embodiment;

[0066] Figure 7 A structural cross-section of a zoom device according to an exemplary embodiment is shown. Figure 3 ;

[0067] Figure 8 This is a schematic diagram of the structure of a zoom device according to an exemplary embodiment;

[0068] Figure 9 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 4 ;

[0069] Figure 10 This is a flowchart illustrating a control method according to an exemplary embodiment. Detailed Implementation

[0070] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0071] Figure 1 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 1 ,like Figure 1 As shown, the zoom device of the liquid lens includes:

[0072] A first container 101 is used to contain liquid, and the volume of the liquid in the first container 101 corresponds to the focal length of the liquid lens.

[0073] At least one second container 102, wherein the first container 101 is connected to each of the second containers 102, and the focal length of the liquid lens changes accordingly when liquid in the second container 102 enters or leaves the first container 101.

[0074] It should be noted that a liquid lens is a type of liquid lens with variable curvature, enabling continuous focusing from distant to close-up scenes. For liquid lenses, the lens medium changes from glass to a liquid, resulting in advantages such as being lighter and thinner, having faster response times, and producing better image quality.

[0075] In some embodiments, the first container may be used to contain a liquid. The liquid in the first container not only possesses properties such as high light transmittance, ultra-low dispersion, and excellent resistance to extreme environments, but also exhibits stable and durable optical properties. In some embodiments, the liquid in the first container may include a fluorinated polymer-based inert fluid.

[0076] In some embodiments, the volume of liquid in the first container is negatively correlated with the focal length of the liquid lens. That is, the larger the volume of liquid in the first container, the smaller the focal length of the liquid lens, the stronger its light-gathering ability, and the more scenery can be captured; conversely, the smaller the volume of liquid in the first container, the larger the focal length of the liquid lens, the weaker its light-gathering ability, and the better it can depict the details of the scenery. The focal length of the liquid lens can be divided into different focal lengths, including ultra-wide-angle, wide-angle, standard, medium telephoto, medium telephoto, telephoto, and super telephoto focal lengths.

[0077] In some embodiments, each of the second containers can be connected to the first container, so that when liquid in the second container moves in and out of the first container, the volume of liquid in the first container can change, thereby changing the focal length of the liquid lens. The liquid in the second container can correspond to the liquid in the first container. For example, when the liquid in the first container is a fluorinated polymer-based inert fluid, the liquid in the second container can also be a fluorinated polymer-based inert fluid.

[0078] In some embodiments, the number of second containers may include 8, or may include 10 or 12. The number of second containers can be set according to actual needs, and no specific limitation is made here.

[0079] In some embodiments, the connection method between the first container and the second container may include: bonding, snap-fitting, welding, fusion welding, etc. The connection method between the first container and the second container can be selected according to actual needs, and no specific limitation is made here. For example, the second container can be snap-fitted onto the outer wall of the first container.

[0080] In some embodiments, liquid in the second container can be driven to move in and out of the first container by an elastic component. This elastic component may consist of an elastic element and a movable element. In implementation, the elastic element drives the movable element to move within the second container, thereby causing liquid in the second container to move in and out of the first container. For example, the elastic element may include a spring, a sheet spring, etc., and the movable element may include a piston.

[0081] In the process of implementation, an external force can be applied to the elastic element, and the deformation of the elastic element can drive the movement of the moving parts. For example, the external force can be applied to the elastic element manually or electrically. Taking the application of an external force to the elastic element electrically as an example, a drive module can be installed on the elastic element, and the external force can be applied to the elastic element through the drive module.

[0082] In other embodiments, a linear vibrator can also be used to drive the liquid in the second container to move in and out of the first container. The method of driving the liquid in the second container to move in and out of the first container can be set according to actual needs, and is not limited here.

[0083] The zoom device for the liquid lens in this embodiment includes: a first container and at least one second container; the first container is used to contain liquid, and the first container can be connected to each of the second containers. Since the capacity of the liquid in the first container corresponds to the focal length of the liquid lens, the focal length of the liquid lens can be changed accordingly when the liquid in the second container enters or leaves the first container.

[0084] Firstly, by connecting each of the second containers to the first container, the liquid in the second container can enter and exit the first container, which will cause a corresponding change in the focal length of the liquid lens, and the liquid in the first container will not vibrate, thereby improving the imaging quality and increasing the imaging speed. Secondly, by changing the focal length of the liquid lens by allowing the liquid in the second container to enter and exit the first container, there is no electromagnetic structure, so no magnetic interference will be generated.

[0085] In some embodiments, the zoom device includes:

[0086] A first film covers the first opening of the first container, the degree of deformation of the first film corresponds to the curvature of the first film, and the curvature of the first film corresponds to the focal length of the liquid lens;

[0087] When liquid in the second container moves in or out of the first container, the volume of liquid in the first container changes, and the first film undergoes a corresponding deformation.

[0088] In some embodiments, the first film is a thin, soft, transparent sheet, which can be made of other materials such as plastic, adhesive, or rubber, and can be used to cover the first opening of the first container. The first film may include: an optical film, a composite film, a superconducting film, and may also include: a polyester film, a nylon film, a plastic film, etc.

[0089] In some embodiments, the degree of deformation of the first film can be positively correlated with the curvature of the first film, while the curvature of the first film can be negatively correlated with the focal length of the liquid lens. That is, when the degree of deformation of the first film is greater, the curvature of the first film is greater, the focal length of the liquid lens is smaller, and the light-gathering ability is stronger; when the degree of deformation of the first film is smaller, the curvature of the first film is smaller, the focal length of the liquid lens is larger, and the light-gathering ability is weaker.

[0090] In some embodiments, when liquid in the second container enters or exits the first container, the first film can be deformed accordingly, thereby changing the focal length of the liquid lens. For example, when liquid in the second container enters the first container, the liquid in the first container changes, causing the first film to bulge out and form a convex lens, which can produce a light-gathering effect, thereby enabling the liquid lens to zoom.

[0091] In some embodiments, by connecting each of the second containers to the first container, liquid in the second containers can be moved in and out of the first container, which makes the deformation of the first film more uniform. The movement of liquid in and out of the second containers causes the first film to deform accordingly, thereby changing the focal length of the liquid lens. There is no electromagnetic structure, so there is no interference.

[0092] Figure 2 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 2 ,like Figure 2 As shown, the zoom device includes:

[0093] The first container 101 includes:

[0094] The first cavity 103 is used to contain liquid;

[0095] A first thin film 104 covers the first opening of the first cavity 103. The degree of deformation of the first thin film 104 corresponds to the curvature of the first thin film 104, and the curvature of the first thin film 104 corresponds to the focal length of the liquid lens.

[0096] At least one second container 102, the second container 102 comprising:

[0097] The second cavity 105 is connected to the first cavity 103. When the liquid in the second cavity 105 enters or exits the first cavity 103, the first film 104 undergoes corresponding deformation.

[0098] In this embodiment of the disclosure, the first container includes: a first cavity and a first membrane; wherein the first cavity is used to contain liquid; and the first membrane is used to cover a first opening of the first cavity. The first opening of the first cavity is located directly above the first cavity. The volume of the first cavity is greater than the volume of the second cavity.

[0099] In some embodiments, the degree of deformation of the first film can be positively correlated with the curvature of the first film, while the curvature of the first film can be negatively correlated with the focal length of the liquid lens. That is, when the degree of deformation of the first film is greater, the curvature of the first film is greater, the focal length of the liquid lens is smaller, and the light-gathering ability is stronger; when the degree of deformation of the first film is smaller, the curvature of the first film is smaller, the focal length of the liquid lens is larger, and the light-gathering ability is weaker.

[0100] In this embodiment, the zoom device of the liquid lens includes at least one second container; wherein the number of second containers may include 8, or may include 10 or 12. The number of second containers can be set according to actual needs, and no specific limitation is made here.

[0101] In some embodiments, the second container includes a second cavity; wherein the first cavity is in communication with the second cavity, so that when liquid in the second cavity enters or exits the first cavity, the first film undergoes corresponding deformation, thereby changing the focal length of the liquid lens. For example, when liquid in the second cavity enters the first cavity, the liquid in the first cavity changes, causing the first film to bulge, forming a convex lens that can produce a light-gathering effect, thereby enabling zooming of the liquid lens.

[0102] In some embodiments, an elastic component can be used to drive the liquid in the second cavity to move in and out of the first cavity. The elastic component can consist of an elastic element and a movable element. During implementation, the elastic element can drive the movable element to move within the second cavity, thereby causing the liquid in the second cavity to move in and out of the first cavity. For example, the elastic element may include a spring, a sheet spring, etc., and the movable element may include a piston.

[0103] In the process of implementation, an external force can be applied to the elastic element, and the deformation of the elastic element can drive the movement of the moving parts. For example, the external force can be applied to the elastic element manually or electrically. Taking the application of an external force to the elastic element electrically as an example, a drive module can be installed on the elastic element, and the external force can be applied to the elastic element through the drive module.

[0104] In other embodiments, a linear vibrator can also be used to drive the liquid in the second chamber to move in and out of the first chamber. The method of driving the liquid in the second chamber to move in and out of the first chamber can be set according to actual needs, and is not limited here.

[0105] In some embodiments, the number of second containers entering the working state can be determined based on the focal length of the liquid lens. That is, the number of second containers entering the working state is related to the focal length of the liquid lens. For example, when the focal length of the liquid lens is medium to long focal length, the second chamber of one of the three second containers can be controlled to enter the working state, and after the second container enters the working state, at least a portion of the liquid enters the first chamber.

[0106] In other embodiments, when the zoom device is not in operation, the first cavity and each of the second cavities are filled with liquid, and the first film is not under liquid compression. Thus, when liquid from the second cavities enters the first cavity, it exerts a compressive force on the first film, causing the first film to bulge.

[0107] In some embodiments, the second container includes:

[0108] An active module is located inside the second container. During the process of the active module moving according to the received focusing command, the liquid in the second container moves in and out of the first container.

[0109] In some embodiments, the movable module may be composed of elastic elements, movable elements, and other devices. When the movable module receives a focusing command, the elastic element can drive the movable element to move within the second container, thereby moving the liquid in the second container into and out of the first container. For example, the elastic element may include a spring, a sheet spring, etc., and the movable element may include a piston, etc.

[0110] In some embodiments, the processing module can obtain the focal length corresponding to the shooting mode selected by the user, generate a corresponding focusing command, and send the focusing command to the active module so that the active module can, based on the focusing command, allow the liquid in the second container to enter and exit the first container. The focusing command can be used to adjust the focal length of the liquid lens. For example, the focusing command may include: adjusting the focal length to the focal length corresponding to a medium telephoto lens. As another example, the focusing command may also include: adjusting the focal length to the focal length corresponding to a wide-angle lens.

[0111] Figure 3 This is a structural cross-section of the second container shown according to an exemplary embodiment. Figure 1 ,like Figure 3 As shown, the second container 102 includes:

[0112] Piston 201, located inside the second container 102, is used to squeeze the liquid in the second container 102 into the first container when it moves toward the first container;

[0113] When the piston 201 moves in a direction away from the first container, at least a portion of the liquid flows back from the first container to the second container 102.

[0114] In this embodiment of the disclosure, the second container includes a piston that can be used to drive liquid in the second container into and out of the first container.

[0115] In some embodiments, when the piston moves toward the first container, it squeezes the liquid in the second container into the first container. At this time, the volume of the liquid in the first container increases, which causes the first film to bulge and the curvature of the first film to increase, thereby reducing the focal length of the liquid lens. When the piston moves away from the first container, at least some of the liquid flows back from the first container to the second container. At this time, the deformation of the first film decreases, and correspondingly, the curvature of the first film decreases, thereby increasing the focal length of the liquid lens.

[0116] In some embodiments, the piston possesses properties such as good thermal conductivity, high temperature resistance, high pressure resistance, corrosion resistance, and good heat dissipation. The piston can be made of an alloy material. The alloy material may include aluminum-magnesium alloys, heat-resistant steel, or cast iron, etc.

[0117] In some embodiments, the fluid in the second container is pushed into and out of the first container by a piston, which makes the deformation of the first film more uniform and prevents it from tilting.

[0118] In some embodiments, the activity module includes:

[0119] A telescopic component, the first end of which is connected to the piston, is used so that the piston moves with the telescopic component during the telescopic process.

[0120] In some embodiments, the first end of the telescopic member can be connected to the piston, and the second end of the telescopic member can be connected to the second container, so that the piston can move with the telescopic member during the telescopic process.

[0121] In some embodiments, the telescopic component may include a piezoelectric ceramic sheet, and may also include a piezoelectric crystal. The telescopic component can be selected according to actual needs, and no specific limitation is made here.

[0122] In some embodiments, the first end of the telescopic member is fixedly connected to the piston in a manner including, but not limited to, at least one of the following: snap-fit ​​fixing, screw fixing, adhesive fixing, welding fixing, fusion fixing, etc.

[0123] In some embodiments, the second end of the telescopic member is fixedly connected to the second container in ways including, but not limited to, at least one of the following: snap-fit ​​fixing, screw fixing, adhesive fixing, welding fixing, fusion fixing, etc.

[0124] In some embodiments, a telescopic member is connected to a piston, so that the piston moves during the telescopic member's extension and retraction. This allows for precise control of the piston's movement distance in the second container, and consequently, precise control of the flow rate of liquid entering and leaving the first container from the second container. For example, moving the piston towards the first container via the telescopic member increases the flow rate of liquid in the first container, thereby generating pressure on the first film, changing its curvature, and achieving a better zoom effect.

[0125] Figure 4 This is a structural cross-section of the second container shown according to an exemplary embodiment. Figure 2 ,like Figure 4 As shown, the second container 102 includes:

[0126] Sealing cap 301;

[0127] The second end of the telescopic component 302 is fixedly connected to the sealing cover 301.

[0128] In this embodiment of the disclosure, a sealing cap is used to cover the fifth opening of the second container to prevent liquid leakage from the second container, wherein the orientation of the fifth opening is perpendicular to the orientation of the first opening.

[0129] In some embodiments, the first end of the telescopic member can be fixedly connected to the piston, and the second end of the telescopic member can be fixedly connected to the sealing cap, for driving the piston to follow the movement during the telescopic process. For example, one end of the telescopic member can be fixed to the center position of the piston, and the other end of the telescopic member can be fixed to the center position of the sealing cap, so that the direction of piston movement is parallel to the inner wall of the second container.

[0130] In some embodiments, the second container may be cylindrical, and correspondingly, the piston may be cylindrical, with its outer diameter being less than or equal to the inner diameter of the second container. In other embodiments, the piston may include a soft piston or a rigid piston. Taking a soft piston as an example, after the piston is pushed into the second container, it allows for a closer contact between the piston and the inner wall of the second container.

[0131] In some embodiments, the sealing cap is fixedly connected to the first container in ways including, but not limited to, at least one of the following: snap-fit ​​fixing, screw fixing, adhesive fixing, welding fixing, fusion fixing, etc.

[0132] In some embodiments, the second end of the telescopic member is fixedly connected to the sealing cover in a manner including, but not limited to, at least one of the following: snap-fit ​​fixing, screw fixing, adhesive fixing, welding fixing, fusion fixing, etc.

[0133] In some embodiments, the material of the sealing cap may include nitrile rubber, and may also include nylon, fluororubber, etc.

[0134] In some embodiments, by providing a sealing cap to the second container, not only can the liquid inside the second container be prevented from leaking out, but the telescopic component can also be fixed, allowing the telescopic component to precisely control the movement distance of the piston in the second container, thereby achieving a better zoom effect.

[0135] In some embodiments, the second container further includes:

[0136] A drive module, connected to the telescopic component, is used to provide drive voltage to the telescopic component;

[0137] The telescopic component includes stacked piezoelectric ceramic sheets.

[0138] In some embodiments, the second container further includes a drive module connected to the telescopic member, used to provide a drive voltage to the telescopic member so that the telescopic member can extend or retract, thereby driving the piston to move along with it, and thus allowing liquid in the second container to enter and exit the first container. The drive module may include a piezoelectric drive chip.

[0139] During implementation, the processing module can obtain the focal length corresponding to the user-selected shooting mode, generate a corresponding drive command, and send the drive command to the drive module. The drive module then generates a corresponding voltage based on the drive command and inputs this voltage to the telescopic component, causing the telescopic component to deform or displace accordingly. For example, if the user-selected shooting mode corresponds to a medium-telephoto focal length, the telescopic component can be driven to extend 1 cm towards the first container.

[0140] In some embodiments, during the process of adjusting the focal length from the first focal length to the second focal length, the telescopic member extends toward the first cavity; during the process of adjusting the focal length from the second focal length to the first focal length, the telescopic member retracts toward the direction away from the first cavity, wherein the first focal length is larger than the second focal length.

[0141] In some embodiments, when the telescopic member extends under the action of the driving voltage, it drives the piston to move toward the first container, so as to squeeze the liquid in the second container into the first container; when the telescopic member retracts under the action of the driving voltage, it drives the piston to move away from the first container, so as to cause at least a portion of the liquid to flow back from the first container to the second container.

[0142] In some embodiments, the telescopic member may include: stacked piezoelectric ceramic sheets; and may also include: stacked piezoelectric crystals. Taking the telescopic member as an example of stacked piezoelectric ceramic sheets, the individual piezoelectric ceramic sheets are connected in series from a mechanical point of view and in parallel from a circuit point of view.

[0143] In some embodiments, piezoelectric ceramic sheets and piezoelectric crystals are piezoelectric materials with piezoelectric properties, including direct piezoelectricity and inverse piezoelectricity. When an external electric field is applied to a piezoelectric dielectric, the dielectric will deform. For example, when a piezoelectric ceramic sheet deforms under an external electric field opposite to its spontaneous polarization, it is equivalent to enhancing the polarization intensity of the piezoelectric ceramic itself, and the increase in polarization intensity causes the piezoelectric ceramic to elongate along the polarization direction; conversely, when a piezoelectric ceramic sheet deforms under an external electric field with the same spontaneous polarization, the piezoelectric ceramic shortens along the polarization direction. Direct piezoelectricity and inverse piezoelectricity belong to the inverse piezoelectric effect, which refers to the conversion of an electrical effect into a mechanical effect.

[0144] In this embodiment of the disclosure, by using stacked piezoelectric ceramic sheets as telescopic members, the high power density of the stacked piezoelectric ceramic sheets allows for greater thrust to the piston without increasing the size of the piezoelectric ceramic sheets, thus reducing space waste.

[0145] In some embodiments, when the power is applied for a long time, the accuracy of the first film deformation may decrease due to the influence of temperature. In this case, multiple second containers can work alternately to reduce the possibility of the second containers working for too long and causing the temperature to rise, thereby improving the accuracy of focusing.

[0146] For example, if the operating time of the second container is detected to be longer than a preset time, the second container can be controlled to enter a non-operating state, and another second container can be controlled to enter an operating state. Similarly, if the operating times of multiple second containers are all longer than the preset time, these multiple second containers can be controlled to enter a non-operating state, and other multiple second containers can be controlled to enter an operating state. To ensure the deformation accuracy of the second film, the number of second containers switching to a non-operating state is the same as the number switching to an operating state because the operating time exceeds the preset time.

[0147] The preset duration can be set as needed, for example, it can be 5 minutes, 10 minutes, etc.

[0148] In some embodiments, when the direction of the voltage provided by the driving voltage is opposite to the polarization direction of the telescopic member, the telescopic member extends, and the piston follows the telescopic member to move toward the first container;

[0149] When the direction of the voltage provided by the driving voltage is the same as the polarization direction of the telescopic member, the telescopic member retracts, and the piston will follow the telescopic member to move in the direction away from the first container.

[0150] In some embodiments, when the direction of the driving voltage is opposite to the polarization direction of the telescopic member, the telescopic member extends. At this time, the piston moves with the telescopic member toward the first container, so that the liquid in the second container is squeezed into the first container. The volume of the liquid in the first container increases, thereby increasing the curvature of the first film and thus reducing the focal length of the liquid lens.

[0151] In other embodiments, when the direction of the driving voltage is the same as the polarization direction of the telescopic member, the telescopic member retracts. At this time, the piston will follow the telescopic member to move in the direction away from the first container, so that some liquid flows back from the first container to the second container, thereby reducing the curvature of the first film and increasing the focal length of the liquid lens.

[0152] In some embodiments, electromagnetic interference can be reduced by utilizing the characteristics of the telescopic member and controlling its extension and retraction based on voltage.

[0153] Figure 5 This is a structural cross-section of the second container shown according to an exemplary embodiment. Figure 3,like Figure 5 As shown, the second container 102 includes:

[0154] The sealing ring 401 is fitted onto the side of the piston 201 that contacts the inner wall of the second container 102.

[0155] In this embodiment, the sealing ring can be fitted onto the side of the piston that contacts the inner wall of the second container, i.e., the sealing ring is fitted onto the outer wall of the piston. This prevents liquid leakage from the second container. Taking a cylindrical piston as an example, the sealing ring can be fitted onto the outer wall of the circular piston.

[0156] To prevent the sealing ring from falling off during piston movement, it can be attached to the outer wall of the piston. Taking a rigid piston as an example, by attaching the sealing ring to the outer wall of the piston, it is possible to prevent liquid from flowing through the gap between the piston and the inner wall of the second container into the space between the piston and the first container when the piston is pushed towards the first container or pulled back towards the opposite side of the first container, thereby improving the adjustment accuracy of the curvature of the first membrane.

[0157] In some embodiments, the sealing ring may be made of rubber, which is elastic and can improve the sealing effect on the piston.

[0158] Figure 6 This is a schematic diagram of the piston structure according to an exemplary embodiment, as shown below. Figure 6 As shown. The piston 201 includes:

[0159] A groove 501 is formed on the side of the piston 201 that contacts the inner wall of the second container;

[0160] The sealing ring is fitted inside the groove.

[0161] Taking a cylindrical container and a cylindrical piston as an example, at least one groove can be provided on the outer wall of the piston. For example, two or four grooves can be provided. In this way, the sealing ring can be directly fitted into the groove.

[0162] In some embodiments, the number of sealing rings is less than or equal to the number of grooves. For example, if one sealing ring is fitted into each groove, the number of sealing rings is the same as the number of grooves.

[0163] In other embodiments, at least one protrusion that mates with the groove can be provided on the side of the sealing ring facing the piston, and the number of protrusions is less than or equal to the number of grooves. In this case, the number of sealing rings can be the same as or less than the number of grooves. For example, a sealing ring with two protrusions can also achieve the fitting of the sealing ring and the groove.

[0164] In this embodiment of the disclosure, by fitting the sealing ring into the groove of the piston, not only can liquid be prevented from flowing through the gap between the piston and the inner wall of the second container into the space between the piston and the first container, but the possibility of the sealing ring falling off the piston can also be reduced.

[0165] Figure 7 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 3 ,like Figure 7 As shown, the zoom device further includes:

[0166] A second film 601 covers a fourth opening of the first container 101, the fourth opening being opposite to the first opening;

[0167] The support member 602 is located on the side of the second film 601 facing away from the first container 101 and is used to support the second film 601.

[0168] In some embodiments, the first container further includes: a second film and a support member; wherein the second film can be used to cover the fourth opening of the first container; the support member is located on the side of the second film facing away from the first container and can be used to support the second film to prevent the second film from deforming when liquid in the second container flows into the first container.

[0169] In some embodiments, the second film is a thin and soft transparent sheet that can be made of other materials such as plastic, adhesive, and rubber; wherein, the second film may include: optical film, composite film, superconducting film, and may also include: polyester film, nylon film, plastic film, etc.

[0170] In some embodiments, the fourth opening of the first container is opposite to the first opening of the first container, that is, the fourth opening is located directly below the first container.

[0171] In some embodiments, the support may include: plexiglass, and may also include: silicone sheet, metal sheet, etc. The support may be selected according to actual needs, and no specific limitation is made here.

[0172] In some embodiments, the second container is located on the outer wall forming the first container;

[0173] The intervals between each of the second containers are the same.

[0174] Figure 8 This is a schematic diagram of the structure of a zoom device according to an exemplary embodiment, such as... Figure 8 As shown, the zoom device includes: a first container 101, a first film 104, a second film 601, a support member 602, each of the second containers 102, and a sealing cap 301. Figure 8In this configuration, each of the second containers 102 can be positioned at equal intervals on the outer wall of the first container 101, thus allowing the second containers 102 to surround the first container 101. Because the intervals between the second containers 102 are the same, when all the second containers 101 are operating simultaneously, the compressive force received by the first film 104 is more uniform, thereby improving focusing accuracy. The support member 602 is used to support the second film 601, preventing deformation of the second film 601 caused by liquid flowing from the second container 102 into the first container 101.

[0175] In some embodiments, the number of second containers can be even, and each second container can form a symmetrical structure. In this way, during the implementation process, an even number of second containers can be controlled to enter the working state, and the second containers entering the working state are symmetrical to each other, which can make the first film more uniformly stressed.

[0176] In some embodiments, since some liquid is stored in the second container, the liquid in the first container does not need to be supersaturated, thus reducing the difficulty of film fixation. In embodiments of this disclosure, by allowing liquid in the second container to move in and out of the first container, causing corresponding deformation of the first film, the process can be greatly simplified.

[0177] In some embodiments, the number of the second containers is positively correlated with the focal length of the liquid lens.

[0178] Here, the number of second containers can be determined based on the focal length of the liquid lens. For example, when the focal length of the liquid lens is telephoto, two second containers can be used to adjust the focal length of the liquid lens; or, when the focal length of the liquid lens is medium telephoto, three second containers can be used to adjust the focal length of the liquid lens.

[0179] In some embodiments, the more second containers there are, the more liquid is stored in the second containers, thereby enabling the first film to achieve a greater curvature change, which can improve the focusing accuracy and achieve continuous zoom of the liquid lens.

[0180] Figure 9 This is a structural cross-section of a zoom device according to an exemplary embodiment. Figure 4 ,like Figure 9 As shown, the second container 102 includes:

[0181] The second opening 801 is opposite to the third opening 802 of the first container 101; the second container 102 is connected to the first container 101 through the second opening 801 and the third opening 802.

[0182] The orientation of the third opening 802 is perpendicular to the orientation of the first opening.

[0183] In some embodiments, the second container further includes a second opening; wherein the second opening is opposite to the third opening of the first container, so that the first container can communicate with the first container through the second opening and the third opening, thereby allowing liquid in the second container to enter and exit the first container, causing the first membrane to undergo corresponding deformation.

[0184] In some embodiments, the third opening of the first container is perpendicular to the orientation of the first opening of the first container.

[0185] Figure 10 This is a flowchart illustrating a control method according to an exemplary embodiment, such as... Figure 10 As shown, this control method is applied to the zoom device in any of the above embodiments, wherein the zoom device is applied to a liquid lens, and the method includes the following steps:

[0186] In step 901, a focusing command is obtained;

[0187] In step 902, at least one second container in the zoom device is controlled to enter the working state according to the focusing command;

[0188] The second container, which enters the working state, is used to squeeze the liquid in the second container into the first container in the focusing device, wherein the volume of the liquid in the first container corresponds to the focal length of the liquid lens.

[0189] It should be noted that this control method can be applied to electronic devices equipped with the zoom device. These electronic devices can include terminal devices, such as mobile terminals, fixed terminals, or vehicle-mounted terminals. Mobile terminals can include devices such as mobile phones, tablets, and laptops. Fixed terminals can include desktop computers or smart TVs. Vehicle-mounted terminals can include front-end equipment of a vehicle monitoring and management system, also known as a vehicle dispatch and monitoring (Telematics Control Unit, TCU) terminal, such as a vehicle-mounted terminal.

[0190] In some embodiments, a focusing command can be obtained to enable the electronic device to control at least one second container in the zoom device to enter a working state based on the focusing command; wherein the focusing command can be used to adjust the focal length of the liquid lens; the second container entering the working state can be used to: squeeze the liquid in the second container into the first container.

[0191] In some embodiments, the number of second containers may include 8, or may include 10 or 12. The number of second containers can be set according to actual needs, and no specific limitation is made here.

[0192] In some embodiments, the electronic device can generate corresponding focusing instructions based on the focal length corresponding to the shooting mode selected by the user. For example, when the user selects an ultra-wide-angle shooting mode, the focusing instruction could be: adjust the focal length of the liquid lens to below 24mm. As another example, when the user selects a wide-angle shooting mode, the focusing instruction could be: adjust the focal length of the liquid lens to between 21mm and 40mm. The focusing instructions can be set according to actual needs and are not specifically limited here.

[0193] In some embodiments, a mapping relationship between focusing commands and the number of second containers entering the working state can be preset. During implementation, a focusing list can be established based on the focusing commands, the number of second containers entering the working state, and the mapping relationship between the focusing commands and the number of second containers entering the working state.

[0194] In some embodiments, after receiving a focusing command, the number of second containers entering the working state can be obtained from the focusing list. This allows control to ensure that at least one second container enters the working state, thereby changing the liquid volume in the first container and consequently changing the focal length of the liquid lens. For example, when it is determined that the number of second containers entering the working state is three, three second containers can be randomly selected to enter the working state.

[0195] In some embodiments, the volume of liquid in the first container is negatively correlated with the focal length of the liquid lens. That is, the larger the volume of liquid in the first container, the smaller the focal length of the liquid lens and the stronger its light-gathering ability; the smaller the volume of liquid in the first container, the larger the focal length of the liquid lens and the weaker its light-gathering ability.

[0196] In some embodiments, by acquiring a focusing command, at least one second container is controlled to enter a working state, squeezing the liquid in the second container into the first container, causing a change in the liquid volume in the first container, thereby allowing the focal length of the liquid lens to be freely changed, and without electromagnetic structure, it will not generate magnetic interference.

[0197] In some embodiments, controlling at least one second container in the zoom device to enter a working state according to the focusing command includes:

[0198] When the focusing command instructs to reduce the focal length of the liquid lens, at least one of the second containers in the zoom device is controlled to enter the operating state.

[0199] In some embodiments, since the volume of liquid in the first container is negatively correlated with the focal length of the liquid lens, when the focusing command indicates a reduction in the focal length of the liquid lens, liquid in at least one second container can be controlled to enter the first container, thereby increasing the volume of liquid in the first container and thus reducing the focal length of the liquid lens.

[0200] For example, when the focusing command is to adjust the focal length to the focal length corresponding to the wide-angle, six second containers can be controlled to enter the working state so that the liquid in the second containers is squeezed into the first container.

[0201] In some embodiments, the number of second containers entering the working state can be obtained from the focusing list according to the focusing instruction, thereby enabling precise focusing.

[0202] In some embodiments, precise zooming can be achieved by determining the number of second containers entering the working state through a focusing command.

[0203] In some embodiments, the method further includes:

[0204] Determine the continuous operating duration of each of the second containers;

[0205] Based on the continuous working duration of each of the second containers, control each of the second containers to switch between the working state and the non-working state;

[0206] During the switching process, the number of second containers that maintain the working state remains unchanged.

[0207] In some embodiments, the duration of continuous operation of each second container can be obtained using time functions. These time functions may include functions such as `clock()` and `time()`.

[0208] In some embodiments, if it is detected that the continuous working time of multiple second containers all exceeds a preset time, the multiple second containers can be controlled to enter a non-working state, and other multiple second containers can be controlled to enter a working state. During the switching process, the number of second containers maintaining a working state remains unchanged.

[0209] In some embodiments, a preset duration can be set according to actual needs, and no specific limitation is made here. For example, the preset duration may include 10 minutes. As another example, the preset duration may also include 5 minutes.

[0210] Taking a scenario with 6 second containers as an example, if 2 second containers have been working for 5 minutes, the state of these 2 second containers can be changed from working state to non-working state, and then 2 second containers can be randomly selected from the other 4 second containers to enter the working state.

[0211] In some embodiments, when the power is applied for a long time, the accuracy of the first film deformation may decrease due to the influence of temperature. In this case, multiple second containers can work alternately to reduce the possibility of the second containers working for too long and causing the temperature to rise, thereby improving the accuracy of focusing.

[0212] In some embodiments, controlling the switching between the working state and the non-working state of each of the second containers based on the continuous working duration of each of the second containers includes:

[0213] The second container, whose continuous working duration is greater than or equal to a preset duration threshold and is in the working state, is switched from the working state to the non-working state;

[0214] The second container is kept in the working state until the continuous working time is greater than or equal to the preset time threshold.

[0215] In some embodiments, the electronic device can monitor the continuous working time of the second container in real time, and if the continuous working time of the second container is detected to be greater than or equal to a preset time threshold, the second container can be switched from a working state to a non-working state.

[0216] In other embodiments, if the continuous working time of the second container is detected to be less than a preset time threshold and the second container is in a working state, the continuous working time of the second container can be monitored until the continuous working time is greater than or equal to the preset time threshold. At this time, the second container can be switched from a working state to a non-working state.

[0217] In some embodiments, a preset duration threshold can be set according to actual needs. For example, the preset duration threshold may include 7 minutes. Another example is that the preset duration threshold may include 9 minutes.

[0218] In some embodiments, by detecting the continuous operating time of the second container, it is possible to prevent the accuracy of the first film deformation from decreasing due to temperature effects when the second container is powered on for an extended period of time.

[0219] This disclosure also provides a liquid lens, which includes the zoom device in any of the above embodiments.

[0220] Here, the focal length of the liquid lens can be changed by a zoom device, thereby changing the optical power of the liquid lens and achieving zooming. Optical power represents the ability of the liquid lens to deflect light. In some embodiments, the focal length can be negatively correlated with optical power; that is, the smaller the focal length of the liquid lens, the greater its refractive power and the stronger its light-gathering ability; conversely, the larger the focal length of the liquid lens, the smaller its refractive power and the weaker its light-gathering ability.

[0221] In some embodiments, the liquid lens may be part of an image acquisition module. The image acquisition module may include a camera located in a mobile terminal; the mobile terminal may include smartphones, laptops, and tablets, etc.

[0222] This disclosure also provides an electronic device that includes the liquid lens from any of the above embodiments.

[0223] In some embodiments, a liquid lens may be disposed in the image acquisition module of an electronic device. The image acquisition module of the electronic device may include a camera.

[0224] Here, electronic devices can include terminal devices, such as mobile terminals, fixed terminals, or vehicle-mounted terminals. Mobile terminals can include devices such as mobile phones, tablets, and laptops. Fixed terminals can include desktop computers or smart TVs. Vehicle-mounted terminals can include front-end equipment of a vehicle monitoring and management system, also known as a TCU terminal, such as a vehicle-mounted terminal.

[0225] In some embodiments, the liquid lens has no electromagnetic structure, so when the liquid lens is placed in the image acquisition module, no electromagnetic interference is generated, which is beneficial for the stacking of devices (e.g., speakers, loudspeakers, etc.).

[0226] It should be understood that the phrases "one embodiment" or "some embodiments" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this disclosure. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this disclosure, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this disclosure. The sequence numbers of the above-described embodiments are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0227] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0228] In the several embodiments provided in this disclosure, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components may be combined, or integrated into another system, or some features may be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0229] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0230] In addition, each functional unit in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0231] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0232] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A zoom device for a liquid lens, characterized in that, include: A first container is used to hold liquid, the volume of which corresponds to the focal length of the liquid lens; Multiple second containers, with the first container connected to each of the second containers, and the focal length of the liquid lens changes accordingly as liquid in the second containers enters or exits the first container; Each of the second containers is located on the outer wall forming the first container; the number of openings in the first container for communicating with the second containers is the same as the number of the second containers; each of the second containers switches between a working state and a non-working state based on the continuous working time of each of the second containers; during the switching process, the number of the second containers in the working state remains unchanged.

2. The zoom device according to claim 1, characterized in that, The zoom device includes: A first film covers the first opening of the first container, the degree of deformation of the first film corresponds to the curvature of the first film, and the curvature of the first film corresponds to the focal length of the liquid lens; When liquid in the second container moves in or out of the first container, the volume of liquid in the first container changes, and the first film undergoes a corresponding deformation.

3. The zoom device according to claim 1, characterized in that, The second container includes: An active module is located inside the second container. During the process of the active module moving according to the received focusing command, the liquid in the second container moves in and out of the first container.

4. The zoom device according to claim 3, characterized in that, The activity module includes: A piston, located inside the second container, is used to squeeze the liquid in the second container into the first container when it moves toward the first container; When the piston moves in a direction away from the first container, at least a portion of the liquid flows back from the first container to the second container.

5. The zoom device according to claim 4, characterized in that, The activity module includes: A telescopic component, the first end of which is connected to the piston, is used so that the piston moves with the telescopic component during the telescopic process.

6. The zoom device according to claim 5, characterized in that, The second container includes: Sealing cap; The second end of the telescopic component is fixedly connected to the sealing cap.

7. The zoom device according to claim 5, characterized in that, The second container also includes: A drive module, connected to the telescopic component, is used to provide drive voltage to the telescopic component; The telescopic component includes stacked piezoelectric ceramic sheets.

8. The zoom device according to claim 7, characterized in that, When the direction of the voltage provided by the driving voltage is opposite to the polarization direction of the telescopic member, the telescopic member extends, and the piston follows the telescopic member to move toward the first container; When the direction of the voltage provided by the driving voltage is the same as the polarization direction of the telescopic member, the telescopic member retracts, and the piston will follow the telescopic member to move in the direction away from the first container.

9. The zoom device according to claim 4, characterized in that, The second container includes: A sealing ring is fitted onto the piston on the side that contacts the inner wall of the second container.

10. The zoom device according to claim 9, characterized in that, The piston includes: A groove is formed on the side of the piston that contacts the inner wall of the second container; The sealing ring is fitted inside the groove.

11. The zoom device according to claim 2, characterized in that, The zoom device also includes: A second film covers a fourth opening in the first container, the fourth opening being opposite to the first opening; A support member, located on the side of the second film facing away from the first container, is used to support the second film.

12. The zoom device according to claim 1, characterized in that, The spacing between each of the second containers is the same.

13. The zoom device according to claim 1, characterized in that, The number of the second containers is positively correlated with the focal length of the liquid lens.

14. The zoom device according to any one of claims 1 to 13, characterized in that, The second container includes: The second opening is opposite to the third opening of the first container; the second container communicates with the first container through the second opening and the third opening. The orientation of the third opening is perpendicular to the orientation of the first opening.

15. A control method, characterized in that, The method, applied to the zoom device according to any one of claims 1 to 14, wherein the zoom device is applied to a liquid lens, comprises: Obtain focus control command; According to the focusing command, at least one second container in the zoom device is controlled to enter the working state; Determine the continuous operating duration of each of the second containers; Based on the continuous working duration of each of the second containers, control each of the second containers to switch between the working state and the non-working state; The second container, which enters the working state, is used to: squeeze the liquid in the second container into the first container in the zoom device. The volume of the liquid in the first container corresponds to the focal length of the liquid lens. During the switching process, the number of second containers in the working state remains unchanged.

16. The control method according to claim 15, characterized in that, The step of controlling at least one second container in the zoom device to enter a working state according to the focusing command includes: When the focusing command instructs to reduce the focal length of the liquid lens, at least one of the second containers in the zoom device is controlled to enter the operating state.

17. The control method according to claim 16, characterized in that, The step of controlling the switching between the working state and the non-working state of each second container based on the continuous working duration of each second container includes: The second container, whose continuous working duration is greater than or equal to a preset duration threshold and is in the working state, is switched from the working state to the non-working state; The second container is kept in the working state until the continuous working time is greater than or equal to the preset time threshold.

18. A liquid lens, characterized in that, The liquid lens includes the zoom device according to any one of claims 1 to 14.

19. An electronic device, characterized in that, The electronic device includes the liquid lens of claim 18.

Images