CN110602370B

CN110602370B - Camera module and terminal equipment

Info

Publication number: CN110602370B
Application number: CN201910948089.7A
Authority: CN
Inventors: 陈伟
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2021-10-01
Anticipated expiration: 2039-10-08
Also published as: CN110602370A

Abstract

The application relates to a camera module and terminal equipment, the camera module includes pedestal, lens structure and image sensor. The lens structure comprises a lens unit, a first liquid crystal lens and a second liquid crystal lens, wherein the lens unit, the first liquid crystal lens and the second liquid crystal lens are respectively arranged on the base body. The lens unit has an optical axis, and the first liquid crystal lens is capable of deflecting incident light around a first axis and emitting the incident light, and the second liquid crystal lens is capable of deflecting incident light around a second axis and emitting the incident light, the first axis and the second axis being perpendicular to the optical axis, respectively. The image sensor is arranged on the base body, and ambient light can penetrate through the lens unit, the first liquid crystal lens and the second liquid crystal lens and is incident to the image sensor. The camera module can meet the anti-shake requirement of the high-pixel camera module and is beneficial to the miniaturization design of the camera module.

Description

Camera module and terminal equipment

Technical Field

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

Background

Mobile terminals such as smart phones are generally equipped with a camera module, and the camera module with high pixels is becoming a necessary configuration of the mobile terminal. However, as the number of pixels of the camera module increases, the size of the lens group also increases correspondingly, so that a larger driving force is required to push the lens group to move so as to realize the anti-shake function, but the larger driving force can increase the size of the driving structure correspondingly, which is not favorable for the miniaturization design of the camera module.

Disclosure of Invention

The embodiment of the application provides a camera module and terminal equipment to satisfy the anti-shake requirement of high pixel camera module, and be favorable to the miniaturized design of camera module.

A camera module, comprising:

a base body;

the lens structure comprises a lens unit, a first liquid crystal lens and a second liquid crystal lens, wherein the lens unit, the first liquid crystal lens and the second liquid crystal lens are respectively arranged on the base body; the lens unit has an optical axis, the first liquid crystal lens can deflect and emit incident light around a first axis, the second liquid crystal lens can deflect and emit incident light around a second axis, and the first axis and the second axis are respectively perpendicular to the optical axis; and

the image sensor is arranged on the base body, and ambient light can penetrate through the lens unit, the first liquid crystal lens and the second liquid crystal lens and is incident to the image sensor.

According to the camera module, the lens structure comprises the first liquid crystal lens and the second liquid crystal lens, the first liquid crystal lens can enable incident light to deflect and emit around the first axis, the second liquid crystal lens can enable the incident light to deflect and emit around the second axis, and the first axis and the second axis are perpendicular to the optical axis respectively. The angle of emergent light can be adjusted by utilizing the first liquid crystal lens and the second liquid crystal lens so as to realize the anti-shake function of the camera module on the first shaft and the second shaft, and the shot object can form images clearly on the image sensor. Because the anti-shake process of camera module need not to remove the lens unit, and first liquid crystal lens and second liquid crystal lens adopt automatically controlled can realize the anti-shake of camera module, consequently can simplify the structure of camera module to be favorable to the miniaturized design of camera module.

In one embodiment, the first axis and the second axis are perpendicular to each other.

In one embodiment, the first liquid crystal lens and the second liquid crystal lens are adjacently arranged; the camera module is provided with the first liquid crystal lens, the second liquid crystal lens, the lens unit and the image sensor in sequence from an object side to an image side.

In one embodiment, the first liquid crystal lens and the second liquid crystal lens are adjacently arranged; the camera module is provided with the lens unit, the first liquid crystal lens, the second liquid crystal lens and the image sensor in sequence from an object side to an image side.

In one embodiment, the first liquid crystal lens, the lens unit, the second liquid crystal lens and the image sensor are sequentially disposed from an object side to an image side of the camera module.

In one embodiment, the first liquid crystal lens and the second liquid crystal lens are adjacently arranged; the lens unit comprises a first lens group and a second lens group, and the first lens group, the first liquid crystal lens, the second lens group and the image sensor are sequentially arranged on the camera module from an object side to an image side.

In one embodiment, the first lens unit includes a first lens group and a second lens group, and the camera module includes the first lens group, the first liquid crystal lens, the second lens group, the second liquid crystal lens, and the image sensor in this order from an object side to an image side.

In one embodiment, the first lens unit includes a first lens group and a second lens group, and the first liquid crystal lens, the first lens group, the second liquid crystal lens, the second lens group, and the image sensor are disposed in order from an object side to an image side of the camera module.

In one embodiment, the camera module includes a filter disposed on the base, and the filter is located between the lens structure and the image sensor.

In one embodiment, the first liquid crystal lenses comprise two, wherein one of the first liquid crystal lenses can deflect incident light clockwise around the first axis, and the other of the first liquid crystal lenses can deflect incident light anticlockwise around the first axis; the second liquid crystal lenses comprise two, one of the second liquid crystal lenses can enable incident light to deflect around the second shaft clockwise, and the other second liquid crystal lens can enable the incident light to deflect around the second shaft anticlockwise.

In one embodiment, orthographic projections of the first liquid crystal lens and the second liquid crystal lens on a plane perpendicular to the optical axis are rectangular, four corners of the first liquid crystal lens are respectively provided with an electrode pin, and four corners of the second liquid crystal lens are respectively provided with an electrode pin.

The terminal equipment is characterized by comprising a shell and the camera module in any one of the embodiments, wherein the camera module is arranged on the shell.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a terminal device in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a camera module according to a first embodiment of the present application;

FIG. 3 is a schematic structural diagram of a first liquid crystal lens of the camera module shown in FIG. 2;

fig. 4a is a schematic optical path diagram of a camera module during normal shooting in an embodiment of the present application;

FIG. 4b is a schematic diagram of an optical path of the camera module shown in FIG. 4a after shaking;

FIG. 4c is a schematic diagram of an optical path of the first liquid crystal lens of the camera module shown in FIG. 4b after deflecting light;

fig. 5 is another schematic structural diagram of a camera module according to the first embodiment of the present application;

FIG. 6 is a schematic diagram of the positions of the electrode pins of the first liquid crystal lens of the camera module shown in FIG. 2;

fig. 7 is a schematic structural diagram of a camera module according to a second embodiment of the present application;

fig. 8 is a schematic structural diagram of a camera module according to a third embodiment of the present application;

fig. 9 is a schematic structural diagram of a camera module according to a fourth embodiment of the present application;

fig. 10 is a schematic structural diagram of a camera module according to a fifth embodiment of the present application;

fig. 11 is a schematic structural diagram of a camera module according to a sixth embodiment of the present application;

fig. 12 is a schematic structural diagram of a terminal device provided in the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

A terminal device arranged to communicate over 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 or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, 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 receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to fig. 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 disposed in the housing 200, and the camera module 100 can be used to perform a shooting function. For example, in some embodiments, the camera module 100 can perform the function of a front camera, and a user can perform operations such as self-shooting, video call, and the like through the camera module 100. In other embodiments, the camera module 100 can perform a function of a rear camera, and a 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. The present application takes the camera module 100 of a smart phone as an example for description, but it should be understood that the camera module 100 disclosed in the present application is also applicable to other types of terminal devices 10.

First embodiment

Referring to fig. 2, in the first embodiment of the present application, the camera module 100 includes a housing 300, a lens structure 400, and an image sensor 500. The lens structure 400 and the image sensor 500 are respectively mounted on the base 300, and are positioned, supported and protected by the base 300. The lens structure 400 includes a lens unit 410, a first liquid crystal lens 420 and a second liquid crystal lens 430, the lens unit 410, the first liquid crystal lens 420 and the second liquid crystal lens 430 are respectively mounted on the base 300, the lens unit 410 includes one or more lenses, the lenses in the lens unit 410 are made of resin or glass or other materials, and the lenses in the lens unit 410 have fixed shapes and structures. The lens unit 410 has an optical axis 411, and the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, the first axis and the second axis being perpendicular to the optical axis 411, respectively. The image sensor 500 is disposed on the base 300, and ambient light can pass through the lens unit 410, the first liquid crystal lens 420 and the second liquid crystal lens 430 and enter the image sensor 500, so as to convert an ambient light signal into an electrical signal, and an image of a photographed object can be formed after further processing.

Specifically, referring to fig. 3, taking the first liquid crystal lens 420 as an example, the first liquid crystal lens 420 includes a first substrate 421a, a first transparent conductive layer 422a, a liquid crystal bearing layer 423, a liquid crystal layer 424, a second transparent conductive layer 422b, and a second substrate 421b, which are sequentially stacked, and the first substrate 421a and the second substrate 421b may be made of a high-transmittance material such as glass or PI (Polyimide), for example, the transmittance of the material may be 90% or more. The liquid crystal bearing layer 423 is used for bearing the liquid crystal layer 424, and the first transparent conductive layer 422a and the second transparent conductive layer 422b are used for forming an electric field in the liquid crystal layer 424, so that the deflection angle of liquid crystal molecules in the liquid crystal layer 424 is changed, and further, the angle of emergent light rays is changed. It will be appreciated that other layers may be provided between two layers which are provided one above the other. In conjunction with fig. 4a, 4b, and 4c, in the case of the normal photographing shown in fig. 4a, light reflected from a subject is transmitted through the lens unit 410, the first liquid crystal lens 420, and is incident to the image sensor 140 along the optical axis 411 of the lens unit 410, and is focused on the image sensor 140. Referring to fig. 4b, when the camera module 100 shakes, light reflected from the subject is transmitted through the lens structure 400 and enters the image sensor 140, and a deviation occurs with respect to a normal shooting situation, and the deviation amount can be detected by an electronic component such as a gyroscope. Referring to fig. 4c, after obtaining the data of the offset, a control voltage is applied to the first liquid crystal lens 420, that is, the incident light is deflected around the first axis and exits, so as to compensate for the shake of the camera module 100, so that the position of the light reflected from the object on the image sensor 140 is the same as or close to the position of normal shooting, thereby enabling the object to form a clearer image, and reducing or avoiding the influence of the shake of the camera module 100 on shooting. The structure and operation principle of the second liquid crystal lens 430 are similar to those of the first liquid crystal lens 420, and are not described in detail here.

The first axis and the second axis may be perpendicular to each other, so that the focusing and the anti-shake of the camera module 100 are controlled by regarding the first axis as an X axis, regarding the second axis as a Y axis, and regarding the optical axis 411 as a Z axis. Of course, it will be understood that the first and second axes need not be perpendicular to each other. For example, the first axis and the second axis may form an acute angle. For the first liquid crystal lens 420, the deflection of the liquid crystal molecules within the first liquid crystal lens 420 has a relatively fixed axis of rotation, i.e., a first axis. Under the action of an applied electric field, the liquid crystal molecules can deflect around a first axis. For example, when the applied electric field is positive, the liquid crystal molecules are deflected clockwise about the first axis; when the applied electric field is reversed, the liquid crystal molecules deflect counterclockwise about the first axis. For the second liquid crystal lens 430, the deflection of the liquid crystal molecules within the second liquid crystal lens 430 has a relatively fixed axis of rotation, i.e., the second axis. Under the action of an applied electric field, the liquid crystal molecules can deflect around the second axis. For example, when the applied electric field is positive, the liquid crystal molecules are deflected clockwise about the second axis; when the applied electric field is reversed, the liquid crystal molecules deflect counterclockwise about the second axis.

After the camera module 100 employs the first liquid crystal lens 420 and the second liquid crystal lens 430, the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, where the first axis and the second axis are perpendicular to the optical axis 411 respectively. The angle of the emergent light can be adjusted by using the first liquid crystal lens 420 and the second liquid crystal lens 430, so that the anti-shake function of the camera module 100 in the first axis and the second axis is realized, and the shot object can form a clear image on the image sensor 500. Because the anti-shake process of camera module 100 need not to remove lens unit 410, and first liquid crystal lens 420 and second liquid crystal lens 430 adopt automatically controlled can realize camera module 100's anti-shake, consequently can simplify camera module 100's structure to be favorable to camera module 100's miniaturized design. Since the electric field is used to control the deflection of the liquid crystal molecules, a relatively fast response speed can be obtained, so as to improve the anti-shake performance of the camera module 100. For the image sensor 500 with high pixels, the anti-shake function is realized without adopting other driving mechanisms, so the structure of the camera module 100 can be simplified, and the miniaturization design of the camera module 100 is facilitated.

In some embodiments, the electric field applied to the first liquid crystal lens 420 may be reversed such that the liquid crystal molecules in the first liquid crystal lens 420 can be deflected both clockwise and counterclockwise about the first axis. Likewise, the electric field applied to the second liquid crystal lens 430 may be reversed such that the liquid crystal molecules in the second liquid crystal lens 430 are capable of deflecting both clockwise and counterclockwise about the second axis. The first liquid crystal lens 420 and the second liquid crystal lens 430 of such a structure have a relatively simple structure, and the camera module 100 has a relatively small thickness in the extending direction of the optical axis 411. Referring to fig. 5, in other embodiments, the first liquid crystal lens 420 may include two, wherein one first liquid crystal lens 420 may deflect incident light clockwise about a first axis and the other first liquid crystal lens 420 may deflect incident light counterclockwise about the first axis. The second liquid crystal lenses 430 include two, one of the second liquid crystal lenses 430 is capable of deflecting incident light clockwise about a second axis, and the other second liquid crystal lens 430 is capable of deflecting incident light counterclockwise about the second axis. In the first liquid crystal lens 420 and the second liquid crystal lens 430 with such a structure, the electric field applied to a single liquid crystal lens has a fixed direction, and the deflection direction of the liquid crystal molecules in the liquid crystal lens under the action of the applied electric field is fixed (for example, clockwise or counterclockwise), so that the applied electric field does not need to be reversed, and the control structure of the liquid crystal lens can be simplified, so that the control of the liquid crystal lens is more convenient.

Further, referring to fig. 6, the orthographic projection of the first liquid crystal lens 420 on a plane perpendicular to the optical axis 411 is rectangular, and the four corners of the first liquid crystal lens 420 are respectively provided with electrode pins 425 for applying an electric field to the liquid crystal layer 424 in the first liquid crystal lens 420. Similarly, the front projection page of the second liquid crystal lens 430 on the plane perpendicular to the optical axis 411 may be rectangular, and the four corners of the second liquid crystal lens 430 are respectively provided with electrode pins 425 for applying an electric field to the liquid crystal layer 424 in the second liquid crystal lens 430. The first liquid crystal lens 420 and the second liquid crystal lens 430 having such a structure are simple, and the electrode pins 425 led out can be easily connected to the main board of the terminal device 10.

Referring to fig. 2, in the first embodiment of the present application, the first liquid crystal lens 420 and the second liquid crystal lens 430 are disposed adjacent to each other, and the lens unit 410, the first liquid crystal lens 420, the second liquid crystal lens 430 and the image sensor 500 are disposed in order from the object side to the image side of the camera module 100. Further, the camera module 100 includes a circuit board 600, the circuit board 600 and the base 300 form a mounting cavity 101, and the image sensor 500 is disposed in the mounting cavity 101 and electrically connected to the circuit board 600. The circuit board 600 may be further electrically connected to a main board of the terminal device 10, so as to transmit the image data collected by the camera module 100 to a processor of the terminal device 10 for further processing.

Referring to fig. 2, in some embodiments, the camera module 100 includes a filter 700 disposed on the base 300, and the filter 700 is located between the lens structure 400 and the image sensor 500. The optical filter 700 can reflect or absorb infrared light to reduce infrared light incident to the image sensor 500 or prevent infrared light from being incident to the image sensor 500, so as to improve the shooting quality of the camera module 100. In other embodiments, the first liquid crystal lens 420 and the second liquid crystal lens 430 include IR film layers disposed on the surfaces of the liquid crystal lenses for reflecting or absorbing infrared light, thereby reducing or preventing infrared light incident on the image sensor 500 from being incident on the image sensor 500, and further improving the shooting quality of the camera module 100. In other embodiments, at least one of the first substrate 421a and the second substrate 421b of the first liquid crystal lens 420 is made of blue glass, and the substrate of the second liquid crystal lens 430 may also be made of blue glass, which can absorb infrared light to improve the shooting quality of the camera module 100, and in such embodiments, the optical filter 700 may be omitted to make the camera module 100 have a smaller thickness in the extending direction of the optical axis 411.

Second embodiment

Referring to fig. 7, in the second embodiment of the present application, the first liquid crystal lens 420 and the second liquid crystal lens 430 are disposed adjacent to each other, and the first liquid crystal lens 420, the second liquid crystal lens 430, the lens unit 410 and the image sensor 500 are disposed in order from the object side to the image side of the camera module 100. The lens unit 410 includes one or more lenses, the lenses in the lens unit 410 are made of resin or glass or other materials, and the lenses in the lens unit 410 have a fixed shape and structure. The first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, the first axis and the second axis being perpendicular to the optical axis 411, respectively.

In the second embodiment of the present application, other structures of the camera module 100 can refer to the first embodiment, and are not described herein again. After the camera module 100 employs the first liquid crystal lens 420 and the second liquid crystal lens 430, the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, where the first axis and the second axis are perpendicular to the optical axis 411 respectively. The angle of the emergent light can be adjusted by using the first liquid crystal lens 420 and the second liquid crystal lens 430, so that the anti-shake function of the camera module 100 in the first axis and the second axis is realized, and the shot object can form a clear image on the image sensor 500. Because the anti-shake process of camera module 100 need not to remove lens unit 410, and first liquid crystal lens 420 and second liquid crystal lens 430 adopt automatically controlled can realize camera module 100's anti-shake, consequently can simplify camera module 100's structure to be favorable to camera module 100's miniaturized design. Since the electric field is used to control the deflection of the liquid crystal molecules, a relatively fast response speed can be obtained, so as to improve the anti-shake performance of the camera module 100. For the image sensor 500 with high pixels, the anti-shake function is realized without adopting other driving mechanisms, so the structure of the camera module 100 can be simplified, and the miniaturization design of the camera module 100 is facilitated.

Third embodiment

Referring to fig. 8, in the third embodiment of the present application, the camera module 100 includes a first liquid crystal lens 420, a lens unit 410, a second liquid crystal lens 430 and an image sensor 500 sequentially disposed from an object side to an image side. The lens unit 410 includes one or more lenses, the lenses in the lens unit 410 are made of resin or glass or other materials, and the lenses in the lens unit 410 have a fixed shape and structure. The first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, the first axis and the second axis being perpendicular to the optical axis 411, respectively.

In the third embodiment of the present application, other structures of the camera module 100 can refer to the first embodiment, and are not described herein again. After the camera module 100 employs the first liquid crystal lens 420 and the second liquid crystal lens 430, the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, where the first axis and the second axis are perpendicular to the optical axis 411 respectively. The angle of the emergent light can be adjusted by using the first liquid crystal lens 420 and the second liquid crystal lens 430, so that the anti-shake function of the camera module 100 in the first axis and the second axis is realized, and the shot object can form a clear image on the image sensor 500. Because the anti-shake process of camera module 100 need not to remove lens unit 410, and first liquid crystal lens 420 and second liquid crystal lens 430 adopt automatically controlled can realize camera module 100's anti-shake, consequently can simplify camera module 100's structure to be favorable to camera module 100's miniaturized design. Since the electric field is used to control the deflection of the liquid crystal molecules, a relatively fast response speed can be obtained, so as to improve the anti-shake performance of the camera module 100. For the image sensor 500 with high pixels, the anti-shake function is realized without adopting other driving mechanisms, so the structure of the camera module 100 can be simplified, and the miniaturization design of the camera module 100 is facilitated.

Fourth embodiment

Referring to fig. 9, in the fourth embodiment of the present application, a first liquid crystal lens 420 and a second liquid crystal lens 430 are adjacently disposed. The lens unit 410 includes a first lens group 413 and a second lens group 415, and the camera module 100 includes, in order from an object side to an image side, the first lens group 413, a first liquid crystal lens 420, a second liquid crystal lens 430, the second lens group 415, and an image sensor 500. The first lens group 413 includes one or more lenses, the lenses in the first lens group 413 are made of resin or glass or other materials, and the lenses in the first lens group 413 have fixed shapes and structures. The second lens group 415 includes one or more than two lenses, the lenses in the second lens group 415 are made of resin or glass or other materials, and the lenses in the second lens group 415 have a fixed shape and structure. The first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, the first axis and the second axis being perpendicular to the optical axis 411, respectively.

In the fourth embodiment of the present application, other structures of the camera module 100 can refer to the first embodiment, and are not described herein again. After the camera module 100 employs the first liquid crystal lens 420 and the second liquid crystal lens 430, the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, where the first axis and the second axis are perpendicular to the optical axis 411 respectively. The angle of the emergent light can be adjusted by using the first liquid crystal lens 420 and the second liquid crystal lens 430, so that the anti-shake function of the camera module 100 in the first axis and the second axis is realized, and the shot object can form a clear image on the image sensor 500. Because the anti-shake process of camera module 100 need not to remove lens unit 410, and first liquid crystal lens 420 and second liquid crystal lens 430 adopt automatically controlled can realize camera module 100's anti-shake, consequently can simplify camera module 100's structure to be favorable to camera module 100's miniaturized design. Since the electric field is used to control the deflection of the liquid crystal molecules, a relatively fast response speed can be obtained, so as to improve the anti-shake performance of the camera module 100. For the image sensor 500 with high pixels, the anti-shake function is realized without adopting other driving mechanisms, so the structure of the camera module 100 can be simplified, and the miniaturization design of the camera module 100 is facilitated.

Fifth embodiment

Referring to fig. 10, in the fifth embodiment of the present application, a lens unit 410 includes a first lens group 413 and a second lens group 415, and the camera module 100 is provided with the first lens group 413, a first liquid crystal lens 420, the second lens group 415, a second liquid crystal lens 430 and an image sensor 500 in order from an object side to an image side. The first lens group 413 includes one or more lenses, the lenses in the first lens group 413 are made of resin or glass or other materials, and the lenses in the first lens group 413 have fixed shapes and structures. The second lens group 415 includes one or more than two lenses, the lenses in the second lens group 415 are made of resin or glass or other materials, and the lenses in the second lens group 415 have a fixed shape and structure. The first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, the first axis and the second axis being perpendicular to the optical axis 411, respectively.

In the fifth embodiment of the present application, other structures of the camera module 100 can refer to the first embodiment, and are not described herein again. After the camera module 100 employs the first liquid crystal lens 420 and the second liquid crystal lens 430, the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, where the first axis and the second axis are perpendicular to the optical axis 411 respectively. The angle of the emergent light can be adjusted by using the first liquid crystal lens 420 and the second liquid crystal lens 430, so that the anti-shake function of the camera module 100 in the first axis and the second axis is realized, and the shot object can form a clear image on the image sensor 500. Because the anti-shake process of camera module 100 need not to remove lens unit 410, and first liquid crystal lens 420 and second liquid crystal lens 430 adopt automatically controlled can realize camera module 100's anti-shake, consequently can simplify camera module 100's structure to be favorable to camera module 100's miniaturized design. Since the electric field is used to control the deflection of the liquid crystal molecules, a relatively fast response speed can be obtained, so as to improve the anti-shake performance of the camera module 100. For the image sensor 500 with high pixels, the anti-shake function is realized without adopting other driving mechanisms, so the structure of the camera module 100 can be simplified, and the miniaturization design of the camera module 100 is facilitated.

Sixth embodiment

Referring to fig. 11, in the sixth embodiment of the present application, a lens unit 410 includes a first lens group 413 and a second lens group 415, and a first liquid crystal lens 420, the first lens group 413, a second liquid crystal lens 430, the second lens group 415, and an image sensor 500 are sequentially disposed from an object side to an image side of a camera module 100. The first lens group 413 includes one or more lenses, the lenses in the first lens group 413 are made of resin or glass or other materials, and the lenses in the first lens group 413 have fixed shapes and structures. The second lens group 415 includes one or more than two lenses, the lenses in the second lens group 415 are made of resin or glass or other materials, and the lenses in the second lens group 415 have a fixed shape and structure. The first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, the first axis and the second axis being perpendicular to the optical axis 411, respectively.

In the sixth embodiment of the present application, other structures of the camera module 100 can refer to the first embodiment, and are not described herein again. After the camera module 100 employs the first liquid crystal lens 420 and the second liquid crystal lens 430, the first liquid crystal lens 420 can deflect and emit incident light around a first axis, and the second liquid crystal lens 430 can deflect and emit incident light around a second axis, where the first axis and the second axis are perpendicular to the optical axis 411 respectively. The angle of the emergent light can be adjusted by using the first liquid crystal lens 420 and the second liquid crystal lens 430, so that the anti-shake function of the camera module 100 in the first axis and the second axis is realized, and the shot object can form a clear image on the image sensor 500. Because the anti-shake process of camera module 100 need not to remove lens unit 410, and first liquid crystal lens 420 and second liquid crystal lens 430 adopt automatically controlled can realize camera module 100's anti-shake, consequently can simplify camera module 100's structure to be favorable to camera module 100's miniaturized design. Since the electric field is used to control the deflection of the liquid crystal molecules, a relatively fast response speed can be obtained, so as to improve the anti-shake performance of the camera module 100. For the image sensor 500 with high pixels, the anti-shake function is realized without adopting other driving mechanisms, so the structure of the camera module 100 can be simplified, and the miniaturization design of the camera module 100 is facilitated.

Referring to fig. 12, fig. 12 is a schematic structural diagram of the terminal device 10 provided in the present 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, a Wireless Fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art will appreciate that the terminal device 10 configuration shown in fig. 12 does not constitute a limitation of the terminal device 10 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The rf circuit 501 may be used for receiving and transmitting information, or receiving and transmitting signals during a call, and in particular, receives downlink information of a base station and then sends the received downlink information to one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, 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) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.

The memory 502 may be used to store applications and data. Memory 502 stores applications containing executable code. The application programs may constitute various functional modules. The processor 508 executes various functional applications and data processing by executing application programs stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device 10, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 access to the memory 502.

The input unit 503 may be used to receive input numbers, character information, or user characteristic information (such as a fingerprint), and generate a keyboard, mouse, joystick, optical, or trackball signal input related to user setting and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508.

The display unit 504 may be used to display information input by or provided to the user and various graphical user interfaces of the terminal device 10, which may be made up of graphics, text, icons, video, and any combination thereof. The display unit 504 may include a display panel. Alternatively, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display panel, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in FIG. 12 the touch sensitive surface and the display panel are two separate components to implement input and output functions, in some embodiments the touch sensitive surface may be integrated with the display panel to implement input and output functions.

The terminal device 10 may also include at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel according to the brightness of ambient light, and a proximity sensor that turns off the display panel and/or the backlight when the terminal device 10 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device 10, detailed description thereof is omitted.

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

Wireless fidelity (WiFi) belongs to short-range wireless transmission technology, and the terminal device 10 can help the user send and receive e-mail, browse web pages, access streaming media and the like through the wireless fidelity module 507, and provides wireless broadband internet access for the user. Although fig. 12 shows the wireless fidelity module 507, it is understood that it does not belong to the essential constitution of the terminal device 10, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 508 is a control center of the terminal device 10, connects various parts of the entire terminal device 10 with various interfaces and lines, and performs various functions of the terminal device 10 and processes data by running or executing an application program stored in the memory 502 and calling up data stored in the memory 502, thereby performing overall monitoring of the terminal device 10. Optionally, processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.

The terminal device 10 also includes a power supply 509 to supply power to the various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so that the power management system may manage charging, discharging, and power consumption. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Although not shown in fig. 12, the terminal device 10 may further include a bluetooth module or the like, which is not described in detail herein. In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a camera module which characterized in that includes:

a base body;

the lens structure comprises a lens unit, a first liquid crystal lens and a second liquid crystal lens, wherein the lens unit, the first liquid crystal lens and the second liquid crystal lens are respectively arranged on the base body; the lens unit has an optical axis, the rotating axes of the liquid crystal molecules of the first liquid crystal lens are parallel to a first axis and can deflect and emit incident light around the first axis, the rotating axes of the liquid crystal molecules of the second liquid crystal lens are parallel to a second axis and can deflect and emit incident light around the second axis, the first axis and the second axis are respectively perpendicular to the optical axis, and the first axis and the second axis are perpendicular to each other; the first liquid crystal lenses comprise two, wherein one first liquid crystal lens can deflect incident light clockwise around the first axis, the other first liquid crystal lens can deflect the incident light anticlockwise around the first axis, and an electric field applied to the single first liquid crystal lens has a fixed direction; the first liquid crystal lens and the second liquid crystal lens respectively comprise two oppositely arranged substrates and a liquid crystal layer arranged between the two substrates, and at least one of the substrates is blue glass and can filter infrared light; and

2. The camera module of claim 1, wherein the first liquid crystal lens and the second liquid crystal lens are disposed adjacent to each other; the camera module is provided with the first liquid crystal lens, the second liquid crystal lens, the lens unit and the image sensor in sequence from an object side to an image side.

3. The camera module of claim 1, wherein the first liquid crystal lens and the second liquid crystal lens are disposed adjacent to each other; the camera module is provided with the lens unit, the first liquid crystal lens, the second liquid crystal lens and the image sensor in sequence from an object side to an image side.

4. The camera module of claim 1, wherein the first liquid crystal lens, the lens unit, the second liquid crystal lens and the image sensor are disposed in order from an object side to an image side of the camera module.

5. The camera module of claim 1, wherein the first liquid crystal lens and the second liquid crystal lens are disposed adjacent to each other; the lens unit comprises a first lens group and a second lens group, and the first lens group, the first liquid crystal lens, the second lens group and the image sensor are sequentially arranged on the camera module from an object side to an image side.

6. The camera module according to claim 1, wherein the lens unit comprises a first lens group and a second lens group, and the camera module is provided with the first lens group, the first liquid crystal lens, the second lens group, the second liquid crystal lens, and the image sensor in this order from an object side to an image side.

7. The camera module according to claim 1, wherein the lens unit comprises a first lens group and a second lens group, and the first liquid crystal lens, the first lens group, the second liquid crystal lens, the second lens group, and the image sensor are disposed in this order from an object side to an image side of the camera module.

8. The camera module according to any one of claims 1 to 7, wherein the second liquid crystal lenses comprise two, one of the second liquid crystal lenses is capable of deflecting incident light clockwise about the second axis, and the other of the second liquid crystal lenses is capable of deflecting incident light counterclockwise about the second axis.

9. The camera module according to any one of claims 1 to 7, wherein orthographic projections of the first liquid crystal lens and the second liquid crystal lens on a plane perpendicular to the optical axis are rectangular, four corners of the first liquid crystal lens are respectively provided with electrode pins, and four corners of the second liquid crystal lens are respectively provided with electrode pins.

10. A terminal device, comprising a housing and the camera module according to any one of claims 1 to 9, wherein the camera module is disposed in the housing.