WO2021213015A1

WO2021213015A1 - Lens structure, camera module and terminal device

Info

Publication number: WO2021213015A1
Application number: PCT/CN2021/078836
Authority: WO
Inventors: 陈伟
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-04-21
Filing date: 2021-03-03
Publication date: 2021-10-28
Also published as: CN111510600A

Abstract

A lens structure (150), comprising a housing (151), a first liquid (152), a second liquid (153), a third liquid (154), and a fourth liquid (155). The housing (151) is provided with a first accommodating cavity (150a) and a second accommodating cavity (150b) spaced from each other; the first liquid (152) and the second liquid (153) are accommodated in the first accommodating cavity (150a), are not dissolvable to each other and form a first interface (150c), and the shape of the first interface (150c) can be changed under the action of an external electric field; and the third liquid (154) and the fourth liquid (155) are accommodated in the second accommodating cavity (150b), are not dissolvable to each other and form a second interface (150d), and the shape of the second interface (150d) can be changed under the action of an external electric field. Ambient light entering the first accommodating cavity (150a) can pass through the first interface (150c) and the second interface (150d) in sequence and be emitted from the second accommodating cavity (150b).

Description

Lens structure, camera module and terminal equipment

Technical field

This application relates to the technical field of optical cameras, and in particular to a lens structure, camera module and terminal equipment.

Background technique

Mobile terminals such as smartphones are generally equipped with camera modules, and high-pixel camera modules are increasingly becoming a necessary configuration for mobile terminals. However, as the pixels of the camera module increase, the volume of the lens group increases accordingly. Therefore, a greater driving force is required to push the lens group to achieve focusing or anti-shake function, but the greater driving force will make the driving structure The corresponding increase in volume is not conducive to the miniaturization of the camera module.

Summary of the invention

Based on this, it is necessary to provide a lens structure, camera module and terminal equipment.

A lens structure, including:

The housing is provided with a first cavity and a second cavity that are spaced apart;

The first liquid and the second liquid are contained in the first cavity, the first liquid and the second liquid are immiscible with each other and form a first interface, and the shape of the first interface is Can be changed under the action of an electric field; and

The third liquid and the fourth liquid are accommodated in the second cavity, the third liquid and the fourth liquid are incompatible with each other and form a second interface, and the shape of the second interface is It can be changed under the action of an electric field; the ambient light incident into the first cavity can sequentially pass through the first interface, the second interface and be emitted from the second cavity.

A camera module includes a base, a lens group, an image sensor, a circuit board, and the above-mentioned lens structure. The lens group has an optical axis, and the lens structure and the image sensor are arranged along the extension direction of the optical axis. The lens group, the lens structure and the circuit board are respectively connected to the base body, and the image sensor is connected to the circuit board.

A camera module includes:

Image sensor; and

The lens structure includes a housing, a first liquid, a second liquid, a third liquid, and a fourth liquid. The housing is provided with a first cavity and a second cavity spaced apart from each other. The first liquid and the The second liquid is accommodated in the first cavity and forms a first interface; the third liquid and the fourth liquid are accommodated in the second cavity and form a second interface; the first Both the shape of the interface and the shape of the second interface can be changed under the action of an applied electric field, so that the light incident into the first cavity sequentially passes through the first interface, the second interface The interface is separated and exits the second cavity, and then enters the image sensor.

A terminal device includes a housing and the above-mentioned camera module, and the camera module is connected to the housing.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, without creative work, the drawings of other embodiments can also be obtained based on these drawings.

FIG. 1 is a schematic diagram of a terminal device of an embodiment;

2 is a schematic diagram of the camera module of the first embodiment;

3 is a schematic diagram of the camera module of the second embodiment;

4 is a schematic diagram of the camera module of the third embodiment;

5 is a schematic diagram of a first state of the lens structure of an embodiment;

6 is a schematic diagram of the second state of the lens structure shown in FIG. 5;

FIG. 7 is a schematic diagram of a third state of the lens structure shown in FIG. 5;

FIG. 8 is a schematic diagram of a fourth state of the lens structure shown in FIG. 5;

FIG. 9 is a schematic diagram of a fifth state of the lens structure shown in FIG. 5;

10 is a schematic diagram of a sixth state of the lens structure shown in FIG. 5;

FIG. 11 is a schematic diagram of a seventh state of the lens structure shown in FIG. 5;

FIG. 12 is a schematic diagram of an eighth state of the lens structure shown in FIG. 5;

FIG. 13 is a schematic diagram of a ninth state of the lens structure shown in FIG. 5;

FIG. 14 is a schematic diagram of a first conductive area of a lens structure according to an embodiment;

15 is a schematic diagram of the first conductive area of the lens structure of another embodiment;

FIG. 16 is a schematic diagram of the camera module of the fourth embodiment;

FIG. 17 is a schematic diagram of the camera module of the fifth embodiment;

18 is a schematic diagram of the camera module of the sixth embodiment;

19 is a schematic diagram of the camera module of the seventh embodiment;

20 is a schematic diagram of the camera module of the eighth embodiment;

21 is a schematic diagram of the camera module of the ninth embodiment;

FIG. 22 is a schematic structural diagram of a terminal device provided by an embodiment of the application.

Reference signs:

10. Terminal equipment 100, camera module 110, base

111, bracket 111a, slot 1111, first bracket

1113, the second bracket 1115, the third bracket 113, the connecting piece

120. Lens group 121. First lens unit 123. Second lens unit

120a, optical axis 130, image sensor 140, circuit board

150. Lens structure 150a, first cavity 150b, second cavity

150c, first interface 150d, second interface 151, shell

1511, the first side wall 1513, the second side wall 1515, the third side wall

1515a, first support 1515b, first conductive layer 1515c, first conductive area

1517, fourth side wall 1517a, second support 1517b, second conductive layer

1519, separator 152, first liquid 153, second liquid

154, third liquid 155, fourth liquid 160, filter

200、Shell

Detailed ways

In order to facilitate the understanding of the application, the application will be described in a more comprehensive manner with reference to the relevant drawings. The preferred embodiments of the application are shown in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive.

As used herein, "terminal equipment" refers to, but is not limited to, devices that can receive and/or send communication signals connected via any one or several of the following connection methods:

(1) Connection methods via wired lines, such as public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections;

(2) Via wireless interface methods, such as cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters.

A terminal device set to communicate through a wireless interface may be referred to as a "mobile terminal." Examples of mobile terminals include but are not limited to the following electronic devices:

(1) Satellite phone or cellular phone;

(2) Personal Communication System (PCS) terminals that can combine cellular radio telephones with data processing, fax and data communication capabilities;

(3) Radio phones, pagers, Internet/Intranet access, Web browsers, notebooks, calendars, personal digital assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) Conventional laptop and/or palmtop receiver;

(5) Conventional laptop and/or palmtop radio telephone transceivers, etc.

1, in some embodiments, the terminal device 10 is a smart phone. The terminal device 10 includes a camera module 100 and a housing 200. The camera module 100 is connected to the housing 200, and the camera module 100 can be used to perform shooting functions. For example, in some embodiments, the camera module 100 can perform the function of a front camera, and the user can perform operations such as self-timer, video call, etc. through the camera module 100. In other embodiments, the camera module 100 can perform the functions of a rear camera, and the user can perform operations such as close-range shooting, long-range shooting, and video recording through the camera module 100. In other embodiments, the terminal device 10 may be a tablet computer, a notebook computer, or the like. This application takes the camera module 100 of a smart phone as an example for description, but it is understandable that the camera module 100 disclosed in this application is also applicable to other types of terminal devices 10.

2, the camera module 100 includes a base 110, a lens group 120, an image sensor 130, a circuit board 140, and a lens structure 150. The lens group 120 has an optical axis 120a. The lens structure 150 and the image sensor 130 extend along the optical axis 120a. Orientation, the lens group 120, the lens structure 150 and the circuit board 140 are respectively connected to the base 110. The base 110 can support and position the lens group 120, the lens structure 150 and the circuit board 140, and the image sensor 130 is connected to the circuit板140。 Plate 140. The ambient light can pass through the lens group 120 and the lens structure 150 and be incident on the image sensor 130 to convert the ambient light signal into an electrical signal. After further processing, an image of the subject can be formed. Further, the lens group 120 includes one or more than two lenses. The lenses in the lens group 120 are made of resin or glass or other materials. The lenses in the lens group 120 have a fixed shape and have a fixed optical axis 120a. Of course, in some embodiments, the lens group 120 may be defaulted.

In some embodiments, the camera module 100 includes a filter 160 disposed on the base 110, and the filter 160 is located between the lens group 120 and the image sensor 130. The filter 160 may be connected to the base 110, as shown in FIG. 2. The filter 160 may also be connected to the lens structure 150, as shown in FIG. 3. The filter 160 may also be connected to the lens group 120. The filter 160 can reflect or absorb infrared light to reduce the infrared light incident on the image sensor 130 or prevent the infrared light from entering the image sensor 130 to improve the shooting quality of the camera module 100. 4, in other embodiments, the lens structure 150 may include an IR (Infrared, infrared) film layer (not shown) disposed on the surface of the lens group 120 or the lens structure 150, and the IR film layer can reflect or absorb infrared light. , Thereby reducing the infrared light incident on the image sensor 130 or preventing the infrared light from entering the image sensor 130, thereby improving the shooting quality of the camera module 100. In this embodiment, the filter 160 can be omitted to simplify the structure of the camera module 100 and reduce the cost of the camera module 100.

Further, referring to FIG. 5, the lens structure 150 includes a housing 151, a first liquid 152, a second liquid 153, a third liquid 154, and a fourth liquid 155. The housing 151 is provided with a first cavity 150a and a second liquid spaced apart from each other. Cavity 150b. The first liquid 152 and the second liquid 153 are contained in the first cavity 150a. The first liquid 152 and the second liquid 153 are immiscible with each other and form a first interface 150c. The shape of the first interface 150c acts on the applied electric field. The next can be changed. The first interface 150c may be a flat surface, as shown in FIG. 5. The first interface 150c may be a concave surface, as shown in FIG. 6. The first interface 150c may also be a convex surface, as shown in FIG. 7. Under the action of an external electric field, the shape of the first interface 150c can be changed. For example, the curvature of the first interface 150c can be changed under the action of an electric field to change the direction of light propagation. In other words, the first liquid 152 and the second liquid 153 in the first cavity 150a form a liquid lens, which can realize functions such as focusing and anti-shake during the imaging process. The third liquid 154 and the fourth liquid 155 are contained in the second cavity 150b. The third liquid 154 and the fourth liquid 155 are immiscible with each other and form a second interface 150d. The second interface 150d can be Change. The second interface 150d may be a flat surface, as shown in FIG. 7. The second interface 150d may be a concave surface, as shown in FIG. 8. The second interface 150d may also be a convex surface, as shown in FIG. 9. Under the action of an external electric field, the shape of the second interface 150d can be changed. For example, the curvature of the second interface 150d can be changed under the action of an electric field to change the direction of light propagation. In other words, the third liquid 154 and the fourth liquid 155 in the second cavity 150b form a liquid lens, which can realize functions such as focusing and anti-shake during the imaging process. The ambient light incident into the first cavity 150a can sequentially pass through the first interface 150c, the second interface 150d, and is emitted from the second cavity 150b.

Further, in some embodiments, at least one of the first liquid 152, the second liquid 153, the third liquid 154, and the fourth liquid 155 can filter infrared light, so that the filter 160 can be omitted to simplify the camera module 100 structure, and reduce the cost of the camera module 100. For example, the first liquid 152 may contain phosphate or fluorophosphate or other substances, which can absorb infrared light to reduce the infrared light incident on the image sensor 130 or prevent the infrared light from entering the image sensor 130, thereby enhancing the camera module 100 shooting quality.

In some embodiments, the direction from the image side to the object side is taken as the positive direction, and the shape of the liquid interface can be determined by combining the expression of the positive direction and the concave curved surface and the convex curved surface. For example, the first interface 150c is a flat surface, the second interface 150d may be a flat surface, or a convex surface, or a concave surface, and the function of the liquid lens of the second cavity 150b can be correspondingly equivalent to a flat lens, a concave lens or a convex lens. In some embodiments, the second interface 150d is a flat surface, the first interface 150c may be a flat surface, or a convex surface, or a concave surface, and the liquid lens of the first cavity 150a may be correspondingly equivalent to a flat lens, a convex lens, or a concave lens. Referring to FIGS. 10, 11, 12 and 13 at the same time, further, the first interface 150c is any one of a flat surface, a convex surface or a concave surface, and the second interface 150d may be any one of a flat surface, a convex surface or a concave surface In this way, a variety of combinations can be formed to expand the usage scenarios of the camera module 100 and improve the shooting performance of the camera module 100.

In some embodiments, the liquid lens formed by the first liquid 152 and the second liquid 153 in the first cavity 150a and the liquid lens formed by the third liquid 154 and the fourth liquid 155 in the second cavity 150b are all oil. Liquid type liquid lens. The oil type lens includes two kinds of conductive liquid and insulating liquid that are immiscible and non-wetting to each other. The conductive liquid and the insulating liquid form an interface. Both the conductive liquid and the insulating liquid are transparent liquids. For example, the light transmittance of the conductive liquid and the insulating liquid can both be above 80% to avoid affecting the incidence of light and the formation of images. Furthermore, the refractive index of the conductive liquid and the insulating liquid are similar to reduce the reflection of incident light on the interface. The density of the conductive liquid and the insulating liquid are close, so that the interface can not be affected by gravity, and the oil-type lens has a stable optical axis. The conductive liquid is a conductive aqueous solution, such as salt water, sodium sulfate solution, etc., and the insulating liquid is a non-polar liquid, such as a silicone oil solution, a bromododecane solution, and the like. Under the action of an external electric field, the shape of the interface between the conductive liquid and the insulating liquid can change, thereby changing the focal length of the oil-type liquid lens. For example, the housing 151 of the oil-type lens may be provided with electrodes to form an electric field in the sealed cavity. By applying an electric field to the oil-type lens, the oil-type lens can have a relatively small volume, and no other driving mechanism is required to adjust the focal length of the oil-type lens. Therefore, the structure of the camera module 100 can be simplified. It is conducive to the miniaturized design of the camera module 100, and it is easy to implement focusing and anti-shake functions, and can obtain a faster response speed, thereby improving the shooting experience. For the high-pixel image sensor 130, since there is no need to adopt other driving mechanisms to achieve focusing and anti-shake functions, the structure of the camera module 100 can also be simplified, and the miniaturization design of the camera module 100 can be facilitated.

When the above lens structure 150 is applied to the camera module 100, the first liquid 152 and the second liquid 153 in the first cavity 150a form a liquid lens, and the third liquid 154 and the fourth liquid 155 in the second cavity 150b form a liquid The deformation of the lens, the first interface 150c and the second interface 150d is easy to control, and the structure required for the control occupies a small space and is easy to implement. Changing the shape of the first interface 150c or the second interface 150d can change the angle of the light emitted from the lens structure 150 to achieve focus or anti-shake function. Therefore, the above-mentioned lens structure 150 can meet the requirements of the high-pixel camera module 100. The focus or anti-shake requirements of the camera module are conducive to the miniaturization design of the camera module 100. Since the first interface 150c and the second interface 150d can be easily controlled separately, for example, the electric field in the first cavity 150a and the electric field in the second cavity 150b can be independently controlled, thereby realizing the control of the first interface 150c and The independent control of the second interface 150d can achieve a more precise control of the angle of the emitted light, and the setting of the first interface 150c and the second interface 150d can achieve a larger range of refraction angles to improve the camera module 100 shooting performance.

12, in the embodiment of the present application, the housing 151 includes a first side wall 1511, a second side wall 1513, a third side wall 1515, a fourth side wall 1517 and a partition 1519, the first side wall 1511, a partition The plate 1519 and the second side wall 1513 are arranged at intervals in sequence. The third side wall 1515 is arranged between the first side wall 1511 and the partition 1519 and forms a first cavity 150a with the first side wall 1511 and the partition 1519. The side wall 1517 is disposed between the partition 1519 and the second side wall 1513 and forms a second cavity 150 b with the partition 1519 and the second side wall 1513. Furthermore, the third side wall 1515 and the fourth side wall 1517 may be integrally formed to simplify the structure of the housing 151. Of course, in some embodiments, the first side wall 1511 and the third side wall 1515 can be integrally formed, and the second side wall 1513 and the fourth side wall 1517 can be integrally formed, and then the partition 1519 can be assembled to the first side. Between the wall 1511 and the second side wall 1513, a spaced first cavity 150a and a second cavity 150b are formed. Since adjacent cavities share the partition 1519, the above-mentioned lens structure 150 has a relatively thin thickness, which makes it easier to realize a thin and light design.

Of course, in other embodiments, the housing 151 may be provided with three or more cavities to form three or more liquid lenses. When two or more liquid lenses are combined for imaging, the incident light can be deflected at a larger angle, thereby improving the zooming or anti-shake performance of the camera module 100. Specifically, the housing 151 may be provided with N partitions 1519, and N is an integer greater than or equal to 1. N partitions 1519 form N+1 cavities distributed at intervals in the housing 151, and each cavity is equipped with two liquids that are immiscible and transparent to each other. The two liquids form an interface between them, and they are incident on The ambient light in the housing 151 passes through each interface in turn. For example, one of the chambers can be provided with the first liquid 152 and the second liquid 153, the other chamber can be provided with the third liquid 154 and the fourth liquid 155, and the liquid setting in any other chamber can be the same as the first chamber. , It can also be the same as the second cavity, and any other cavity can also be provided with two liquids different from the first liquid 152, the second liquid 153, the third liquid 154, and the fourth liquid 155. Of course, in some embodiments, the first liquid 152 can be the same as the third liquid 154, and the second liquid 153 can be the same as the fourth liquid 155.

Further, the first side wall 1511 includes a first light transmission area, the second side wall 1513 includes a second light transmission area, and the partition 1519 includes a third light transmission area, and ambient light can be incident from the first light transmission area to the first container. The cavity 150a passes through the first interface 150c, the third light-transmitting area, the second interface 150d, and the second light-transmitting area in sequence. In other words, the first sidewall 1511 does not need to be completely transparent, and it is only required to be provided with a first light-transmitting area. For example, the first light-transmitting area may be made of glass, plastic, or sapphire. The second side wall 1513 does not need to be completely transparent, and it is only required to be provided with a second light-transmitting area, for example, the second light-transmitting area is made of glass, plastic, or sapphire. The partition 1519 also does not need to be completely transparent, and only needs to be provided with a third light-transmitting area. For example, the third light-transmitting area may be made of glass, plastic, or sapphire.

Of course, in order to simplify the processing of the first side wall 1511, the second side wall 1513 or the partition 1519, the first side wall 1511 may be transparent as a whole, the second side wall 1513 may be transparent as a whole, and the partition 1519 may be a whole. Transparent. For example, the first side wall 1511 may be made of glass, plastic, or sapphire, and the light transmittance of the first light-transmitting area is relatively high. For example, the second side wall 1513 may be made of glass or plastic or sapphire, and the light transmittance of the second light-transmitting area is relatively high. The partition 1519 may be made of glass, plastic, or sapphire, and the light transmittance of the third light-transmitting area is relatively high.

Further, with reference to FIG. 13, the third side wall 1515 includes a first support 1515a and a first conductive layer 1515b provided on the first support 1515a. The first conductive layer 1515b may be provided on the inner surface of the first support 1515a, and It may be provided on the outer surface of the first support 1515a. With reference to FIG. 14, the first conductive layer 1515b includes a plurality of first conductive regions 1515c arranged along the circumferential direction of the first sidewall 1511. The adjacent first conductive regions 1515c are insulated and arranged. An electric field for changing the shape of the first interface 150c is formed in the cavity 150a. The number of first conductive regions 1515c can be set to 3, 4, 6, or 8, and the arrangement of multiple first conductive regions 1515c can improve the control accuracy of the first interface 150c to achieve better focus or anti-shake Effect. For example, in the embodiment shown in FIG. 14, the first conductive regions 1515c are provided in four; in the embodiment shown in FIG. 15, the first conductive regions 1515c are provided in eight. The first conductive region 1515c may be formed by a metal plating process, or may be formed by a method of attaching a metal film, etc., which will not be repeated here.

The fourth side wall 1517 and the third side wall 1515 have a similar structure. The fourth side wall 1517 may include a second support 1517a and a second conductive layer 1517b provided on the second support 1517a. Similarly, the second conductive layer 1517b may include a plurality of second conductive regions arranged along the circumferential direction of the second sidewall 1513, and the adjacent second conductive regions are insulated and arranged, and the second conductive regions can be in the second cavity 150b when energized. An electric field for changing the shape of the second interface 150d is formed. There are 3, 4, 6, or 8 second conductive regions. The arrangement of a plurality of second conductive regions can improve the control accuracy of the second interface 150d, so as to achieve better focusing or anti-shake effect. The second conductive area can be formed by a metal plating process, or can be formed by a metal film, etc., which will not be repeated here.

Referring to FIG. 16, in some embodiments, the lens structure 150, the lens group 120, and the image sensor 130 are sequentially arranged along the optical axis 120a of the lens group 120 from the object side to the image side, and ambient light can pass through the lens structure 150 and the lens group in sequence. 120 and incident on the image sensor 130, after further processing, an image of the subject can be formed. Referring to FIG. 17, in other embodiments, the lens group 120, the lens structure 150, and the image sensor 130 are arranged in order from the object side to the image side along the optical axis 120a, and the ambient light can pass through the lens group 120, the lens structure 150 and be incident on The image sensor 130 can form an image of the subject after further processing.

18 and 19, in other embodiments, the lens group 120 includes a first lens unit 121 and a second lens unit 123, the first lens unit 121, the lens structure 150, the second lens unit 123 and the image sensor 130 along The optical axis 120a is arranged in order from the object side to the image side. The first lens unit 121 may include one or more than two lenses, and the lenses in the first lens unit 121 are made of resin or glass or other materials, and have a fixed shape. The second lens unit 123 may include one or more than two lenses, and the lenses in the second lens unit 123 are made of resin or glass or other materials, and have a fixed shape.

In some embodiments, the seat body 110 is an integrally formed structure. Referring to FIG. 19, in other embodiments, the base 110 includes a bracket 111 and a connecting member 113, and the materials of the bracket 111 and the connecting member 113 do not need to be the same. The lens group 120 and the circuit board 140 are connected to the bracket 111, and the lens structure 150 is fixedly connected to the connector 113 and can form an independent part. The bracket 111 is provided with a slot 111a, and the connector 113 is detachably provided in the slot 111a. In the structure of the above-mentioned camera module 100, the lens structure 150 is detachably inserted into the slot 111a of the bracket 111, and different lens structures 150 can be replaced according to shooting requirements, for example, the lens structure 150 with different zoom ranges can be replaced to upgrade the camera module. 100 performance and enhance the convenience of use. Of course, in other embodiments, the connecting member 113 may be omitted, and the housing 151 of the lens structure 150 may extend to form the connecting member 113, that is, the connecting member 113 is a part of the housing 151. Of course, in some embodiments, the connecting member 113 can be omitted, and the housing 151 of the lens structure 150 can be connected to the bracket 111.

Further, referring to FIG. 20, in other embodiments, the bracket 111 may include a first bracket 1111 and a second bracket 1113. The first bracket 1111 and the second bracket 1113 are all connected to the circuit board 140, and the first lens unit 121, the second bracket 1113 are connected to the circuit board 140. The two lens units 123 are both connected to the second bracket 1113, the slot 111a is located in the second bracket 1113, the first bracket 1111 and the circuit board 140 form a mounting cavity 111b, and the image sensor 130 is disposed in the mounting cavity 111b. In this embodiment, the first bracket 1111 and the second bracket 1113 can be independently assembled with the circuit board 140, so that the circuit board 140 can be used as a common assembly reference to reduce assembly errors. Of course, in some embodiments, a part of the second bracket 1113 may be connected to the circuit board 140, and the circuit board 140 is used as an assembly reference, and another part of the second bracket 1113 may be connected to the first bracket 1111. This structure can also reduce Small assembly error.

Further, referring to FIG. 21, in some embodiments, the base 110 includes a connecting member 113 and a bracket 111, the connecting member 113 is fixedly connected to the lens structure 150, and the bracket 111 includes a first bracket 1111, a second bracket 1113, and a third bracket 1115. The first bracket 1111 and the second bracket 1113 are all connected to the circuit board 140, the first bracket 1111 and the circuit board 140 form a mounting cavity 111b, and the image sensor 130 is disposed in the mounting cavity 111b. The second lens unit 123 is connected to the second bracket 1113, the first lens unit 121 is connected to the third bracket 1115, and the third bracket 1115, the connecting member 113, and the second bracket 1113 are sequentially stacked. In the camera module 100 of this structure, since the first bracket 1111, the second bracket 1113, and the third bracket 1115 are assembled independently, the assembly errors can be easily corrected during the assembly process, so that the center of the lens structure 150 and the first lens The center of the unit 121 and the center of the second lens unit 123 are located on a straight line, that is, on the optical axis 120 a of the lens group 120.

Referring to FIG. 22, FIG. 22 is a schematic structural diagram of a terminal device 10 according to an embodiment of the application. The terminal device 10 may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, and wireless fidelity ( The WiFi (Wireless Fidelity) module 507 includes a processor 508 with one or more processing cores, a power supply 509 and other components. Those skilled in the art can understand that the structure of the terminal device 10 shown in FIG. 22 does not constitute a limitation on the terminal device 10, and may include more or fewer components than shown in the figure, or a combination of certain components, or different components. Layout.

The radio frequency circuit 501 can be used to send and receive information, or to receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is processed by one or more processors 508; in addition, the uplink data is sent to the base station. . Generally, the radio frequency circuit 501 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM, Subscriber Identity Module) card, a transceiver, a coupler, and a low noise amplifier (LNA, Low Noise Amplifier), duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA, Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE), Email, Short Messaging Service (SMS, Short Messaging Service), etc.

The memory 502 can be used to store application programs and data. The application program stored in the memory 502 contains executable code. Application programs can be composed of various functional modules. The processor 508 executes various functional applications and data processing by running application programs stored in the memory 502. The memory 502 may mainly include a storage program area and a storage data area. The storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; The data (such as audio data, phone book, etc.) created by the use of the terminal device 10, etc. In addition, the memory 502 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices. Correspondingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 to access the memory 502.

The input unit 503 can be used to receive inputted numbers, character information or user characteristic information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, in a specific embodiment, the input unit 503 may include a touch-sensitive surface and other input devices. A touch-sensitive surface, also known as a touch screen or a touchpad, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch-sensitive surface or on the touch-sensitive surface. Operation near the surface), and drive the corresponding connection device according to the preset program. Optionally, the touch-sensitive surface may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 508, and can receive and execute the commands sent by the processor 508.

The display unit 504 may be used to display information input by the user or information provided to the user and various graphical user interfaces of the terminal device 10, and these graphical user interfaces may be composed of graphics, text, icons, videos, and any combination thereof. The display unit 504 may include a display panel. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD, Liquid Crystal Display), an organic light emitting diode (OLED, Organic Light-Emitting Diode), etc. Further, the touch-sensitive surface can cover the display panel. When the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of the touch event, and then the processor 508 displays the display panel according to the type of the touch event. Corresponding visual output is provided on the panel. Although in FIG. 22, the touch-sensitive surface and the display panel are used as two independent components to realize the input and input functions, in some embodiments, the touch-sensitive surface and the display panel may be integrated to realize the input and output functions. It can be understood that the display screen 110 may include an input unit 503 and a display unit 504.

The terminal device 10 may also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor can close the display panel and/or when the terminal device 10 is moved to the ear. Or backlight. As a kind of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when it is stationary. It can be used to identify mobile phone posture applications (such as horizontal and vertical screen switching, related Games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; as for the terminal device 10 can also be configured with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc., here No longer.

The audio circuit 506 can provide an audio interface between the user and the terminal device 10 through a speaker and a microphone. The audio circuit 506 can convert the received audio data into electrical signals, transmit them to the speakers, and then convert them into sound signals for output; on the other hand, the microphone converts the collected sound signals into electrical signals, which are converted into electrical signals after being received by the audio circuit 506 The audio data is processed by the audio data output processor 508, and then sent through the radio frequency circuit 501 to, for example, another terminal device 10, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earphone holder to provide communication between a peripheral earphone and the terminal device 10.

Wireless fidelity (WiFi) is a short-distance wireless transmission technology. Through the wireless fidelity module 507, the terminal device 10 can help users send and receive emails, browse webpages, and access streaming media. It provides users with wireless broadband Internet access. Although FIG. 22 shows the wireless fidelity module 507, it can be understood that it is not a necessary component of the terminal device 10, and can be omitted as needed without changing the essence of the invention.

The processor 508 is the control center of the terminal device 10. It uses various interfaces and lines to connect the various parts of the entire terminal device 10. Various functions and processing data of the terminal device 10 are used to monitor the terminal device 10 as a whole. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc. , The modem processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 508.

The terminal device 10 also includes a power supply 509 for supplying power to various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so that functions such as management of charging, discharging, and power consumption management can be realized through the power management system. The power supply 509 may also include any components such as one or more DC or AC power supplies, a recharging system, a power failure detection circuit, a power converter or inverter, and a power status indicator.

Although not shown in FIG. 22, the terminal device 10 may also include a Bluetooth module, etc., which will not be repeated here. During specific implementation, each of the above modules can be implemented as an independent entity, or can be combined arbitrarily, and implemented as the same or several entities. For the specific implementation of each of the above modules, please refer to the previous method embodiments, which will not be repeated here.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be understood as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A lens structure including:

The housing is provided with a first cavity and a second cavity that are spaced apart;

The first liquid and the second liquid are contained in the first cavity, the first liquid and the second liquid are immiscible with each other and form a first interface, and the shape of the first interface is Can be changed under the action of an electric field; and

The third liquid and the fourth liquid are accommodated in the second cavity, the third liquid and the fourth liquid are incompatible with each other and form a second interface, and the shape of the second interface is It can be changed under the action of an electric field; the ambient light incident into the first cavity can sequentially pass through the first interface, the second interface and be emitted from the second cavity.
The lens structure according to claim 1, wherein the housing includes a first side wall, a second side wall, a third side wall, a fourth side wall and a partition, the first side wall, the The partition wall and the second side wall are arranged at intervals in sequence, and the third side wall is arranged between the first side wall and the partition wall and forms a joint with the first side wall and the partition wall. In the first cavity, the fourth side wall is arranged between the partition and the second side wall and forms the second cavity with the partition and the second side wall.
4. The lens structure of claim 2, wherein the first sidewall includes a first light-transmitting area, the second sidewall includes a second light-transmitting area, and the partition includes a third light-transmitting area , The ambient light can enter the first cavity from the first light-transmitting area, and sequentially pass through the first interface, the third light-transmitting area, the second interface and the The second light-transmitting area.
The lens structure according to claim 2, wherein the third side wall comprises a first support body and a first conductive layer provided on the first support body, and the first conductive layer can be An electric field for changing the shape of the first interface is formed in the first cavity.
The lens structure according to claim 4, wherein the first conductive layer comprises a plurality of first conductive regions arranged along the circumferential direction of the third sidewall, and the first conductive regions are insulated and arranged adjacent to each other. When the first conductive region is energized, an electric field for changing the shape of the first interface can be formed in the first cavity.
The lens structure according to claim 5, wherein the fourth side wall comprises a second support body and a second conductive layer provided on the second support body, and the second conductive layer can be An electric field for changing the shape of the second interface is formed in the second cavity.
The lens structure according to claim 6, wherein the second conductive layer comprises a plurality of second conductive regions arranged along the circumferential direction of the fourth sidewall, and the second conductive regions are insulated and arranged adjacent to each other. When the second conductive region is energized, an electric field for changing the shape of the second interface can be formed in the second cavity.
The lens structure according to claim 7, wherein the number of first conductive regions is 3, 4, 6, or 8, and the number of second conductive regions is 3, 4, or 6. Or eight.
The lens structure according to claim 3, characterized by comprising any one of the following solutions:

The first light-transmitting area is transparent and made of glass, plastic, or sapphire;

The second light-transmitting area is transparent and made of glass, plastic, or sapphire;

The third light-transmitting area is transparent and made of glass, plastic, or sapphire.
A camera module, comprising a base, a lens group, an image sensor, a circuit board, and the lens structure according to any one of claims 1-9, the lens group having an optical axis, the lens structure, the image sensor Are arranged along the extension direction of the optical axis, the lens group, the lens structure and the circuit board are respectively connected to the base body, and the image sensor is connected to the circuit board.
The camera module according to claim 10, wherein the lens structure, the lens group, and the image sensor are arranged in order from the object side to the image side along the optical axis, or the lens group, the lens group and the image sensor The lens structure and the image sensor are arranged in order from the object side to the image side along the optical axis.
The camera module of claim 10, wherein the lens group comprises a first lens unit and a second lens unit, the first lens unit, the lens structure, the second lens unit, and the lens unit. The image sensors are arranged in order from the object side to the image side along the optical axis.
The camera module according to claim 12, wherein the base body comprises a bracket and a connecting piece, the lens group and the circuit board are connected to the bracket, and the lens structure is fixed to the connecting piece For connection, the bracket is provided with a slot, and the connecting piece is detachably provided in the slot.
The camera module according to claim 13, wherein the bracket comprises a first bracket and a second bracket, and the first bracket and the second bracket are both connected to the circuit board, and the first bracket and the second bracket are both connected to the circuit board. The lens unit and the second lens unit are both connected to the second bracket, the slot is located in the second bracket, the first bracket and the circuit board form a mounting cavity, and the image sensor is located in The installation cavity.
The camera module according to claim 12, wherein the base body includes a connecting piece and a bracket, the connecting piece is fixedly connected to the lens structure, and the bracket includes a first bracket, a second bracket, and a second bracket. Three brackets, the first bracket and the second bracket are both connected to the circuit board, the first bracket and the circuit board form a mounting cavity, and the image sensor is arranged in the mounting cavity; The second lens unit is connected to the second bracket, the first lens unit is connected to the third bracket, and the third bracket, the connecting member, and the second bracket are sequentially stacked.
The camera module according to any one of claims 10-15, wherein the camera module comprises a filter, and the lens group, the filter and the image sensor are along the optical axis Set in sequence from the object side to the image side.
A camera module includes:

Image sensor; and

The lens structure includes a housing, a first liquid, a second liquid, a third liquid, and a fourth liquid. The housing is provided with a first cavity and a second cavity spaced apart from each other. The first liquid and the The second liquid is accommodated in the first cavity and forms a first interface; the third liquid and the fourth liquid are accommodated in the second cavity and form a second interface; the first Both the shape of the interface and the shape of the second interface can be changed under the action of an applied electric field, so that the light incident into the first cavity sequentially passes through the first interface, the second interface The interface is separated and exits the second cavity, and then enters the image sensor.
The camera module according to claim 17, wherein the housing comprises a first side wall, a second side wall, a third side wall, a fourth side wall and a partition, the first side wall, The partition and the second side wall are arranged at intervals in sequence, and the third side wall is arranged between the first side wall and the partition and forms with the first side wall and the partition. In the first cavity, the fourth side wall is disposed between the partition and the second side wall and forms the second cavity with the partition and the second side wall; The first side wall includes a first light transmission area, the second side wall includes a second light transmission area, the partition plate includes a third light transmission area, and light can enter the first light transmission area from the first light transmission area. Inside the first cavity, and pass through the first interface, the third light-transmitting area, the second interface, and the second light-transmitting area in sequence.
The camera module of claim 18, wherein the third side wall comprises a first support body and a first conductive layer provided on the first support body, and the first conductive layer is An electric field for changing the shape of the first interface is formed in the first cavity; the fourth side wall includes a second support and a second conductive layer provided on the second support, the When the second conductive layer is energized, an electric field for changing the shape of the second interface is formed in the second cavity.
The camera module of claim 19, wherein the first conductive layer comprises a plurality of first conductive regions arranged along the circumference of the first cavity, and adjacent to the first conductive regions are insulated Setting, when the first conductive region is energized, an electric field for changing the shape of the first interface is formed in the first cavity; the second conductive layer includes a circumferential direction along the second cavity A plurality of second conductive regions are provided, which are insulated and arranged adjacent to the second conductive regions, and when the second conductive regions are energized, an electric field for changing the shape of the second interface is formed in the second cavity .
The camera module according to claim 17, wherein the camera module includes a base, the base includes a bracket and a connecting piece, the image sensor is connected to the bracket, and the lens structure is connected to the base. The connecting piece is fixedly connected, the bracket is provided with a slot, and the connecting piece is pluggably arranged in the slot.
A terminal device, comprising a housing and the camera module according to any one of claims 10-21, and the camera module is connected to the housing.