Lens assembly, camera module and terminal

Abstract

The present disclosure relates to a lens assembly, a camera module and a terminal, the lens assembly comprising a lens body and an anti-fogging film, the anti-fogging film is arranged in a stack with the lens body and is located on at least one side of the lens body, the lens body has a light transmission area, and the anti-fogging film covers at least the light transmission area. By arranging the anti-fogging film and making the anti-fogging film cover the light transmission area of the lens body, the temperature difference between the inner heat environment of the lens assembly and the inner interface of the lens assembly can be reduced, so that water vapor cannot condense on the inner side of the light transmission area of the lens body, the lens body fogging phenomenon can be avoided, the anti-fogging of the lens assembly is realized, and the use of the lens assembly will not be affected. In this way, by arranging the lens assembly on the terminal, when the terminal is placed in an environment with a lower temperature after being used for a long time, the lens assembly will not appear fogging, the camera module can still be used normally, and therefore the use experience of the user can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of terminals, and in particular, to a lens assembly, a camera module and a terminal. BACKGROUND

[0002] With the continuous updating and iteration of mobile phone technology, major mobile phone manufacturers have successively launched the highest IP68 waterproof mobile phone. The waterproof mobile phone can still be normally used after a 30-minute static water immersion test at a water depth of 1.5 m in the on state, greatly improving the protection performance of the mobile phone. However, such a mobile phone with excellent sealing still has a problem: when the user uses the mobile phone for a long time, for example, after a long time of playing games or video calls, the mobile phone is relatively serious. If the user directly places the mobile phone in a cold environment such as an air conditioner or an ice-cooled heat dissipation back clip with a lower temperature to quickly cool down, because there is a temperature difference between the internal environment of the mobile phone and the inner side interface of the lens of the camera, the water vapor evaporated by the heat inside the mobile phone is easy to condense, forming a layer of water mist on the inner side of the lens of the camera of the mobile phone, affecting the use of the camera, and seriously affecting the user's use experience. SUMMARY

[0003] To overcome the problems in the related art, the present disclosure provides a lens assembly, a camera module and a terminal to solve the above problems.

[0004] According to an aspect of the present disclosure, a lens assembly is provided, comprising a lens body and an anti-fog film, the anti-fog film is arranged in a stack with the lens body and located at least one side of the lens body, the lens body has a light transmission area, and the anti-fog film covers at least the light transmission area.

[0005] Optionally, the anti-fog film is a transparent conductive heating film, and the conductive heating film is configured to generate heat when powered.

[0006] Optionally, the anti-fog film comprises a conductive ion layer and / or a polymer conductive layer, and the conductive ion layer or the polymer conductive layer is configured to generate heat when powered.

[0007] Optionally, the anti-fog film further comprises an indium tin oxide (ITO) layer, and the ITO layer is arranged in a stack with the conductive ion layer and / or the polymer conductive layer.

[0008] Optionally, the ITO layer comprises a first ITO layer and a second ITO layer, and the anti-fogging film further comprises a first base material layer, a second base material layer, a positive electrode connecting member and a negative electrode connecting member, from the side of the anti-fogging film close to the lens body to the side away from the lens body, the first base material layer, the first ITO layer, the conductive ion layer and / or the polymer conductive layer, the second ITO layer, and the second base material layer are sequentially stacked, one end of the positive electrode connecting member is electrically connected with the conductive ion layer and / or the polymer conductive layer, and the other end is used for being electrically connected with the negative electrode of a power supply, one end of the negative electrode connecting member is electrically connected with the conductive ion layer and / or the polymer conductive layer, and the other end is used for being electrically connected with the positive electrode of the power supply.

[0009] Optionally, the anti-fogging film further comprises a transparent adhesive layer, and the anti-fogging film is connected with the lens body through the transparent adhesive layer.

[0010] Optionally, the anti-fogging film further comprises an electrode shielding film, and the electrode shielding film is arranged between the anti-fogging film and the lens body.

[0011] Optionally, the thickness of the anti-fogging film is 50 μm-80 μm, and / or the thickness of the electrode shielding film is 50 μm-75 μm.

[0012] Optionally, the lens assembly further comprises a decorative film, and the anti-fogging film is located between the lens body and the decorative film.

[0013] According to another aspect of the present disclosure, a camera module is provided, comprising the lens assembly described above.

[0014] Optionally, the camera module further comprises a camera and a shell, the shell is provided with a cavity for mounting the camera, the shell is provided with a light transmission hole in communication with the cavity, and at least part of the lens assembly covers the light transmission hole.

[0015] According to another aspect of the present disclosure, a terminal is provided, comprising the lens assembly described above or the camera module described above.

[0016] Optionally, the terminal further comprises a display module, the lens assembly is arranged on one side of a display area of the display module, and a normal projection of the anti-fogging film on the display module at least partially overlaps the display area.

[0017] Optionally, the anti-fogging film is a transparent conductive heating film configured to generate heat when powered, and the terminal further comprises a controller, a temperature sensor, and a switch, the switch and the temperature sensor are electrically connected to the controller, the temperature sensor is configured to acquire a first temperature of an inner side of the lens assembly and a second temperature of an outer side of the lens assembly, and the controller is configured to control the switch to open or close according to a difference between the first temperature and the second temperature, so as to connect or disconnect an electrical connection between a power supply of the terminal and the anti-fogging film.

[0018] Optionally, the controller is further configured to adjust an electric current on a series circuit between the power supply and the anti-fogging film according to the difference between the first temperature and the second temperature.

[0019] In the lens assembly provided in the embodiments of the present disclosure, by arranging the anti-fogging film to cover the light-transmitting region of the lens body, even when the temperature of the environment outside the lens assembly is low, the temperature difference between the inner side of the lens assembly (i.e., the inner environment of the terminal) and the interface between the inner side of the lens assembly can be reduced, so that water vapor cannot condense on the inner side of the light-transmitting region of the lens body, and the lens body can be prevented from fogging, thereby achieving anti-fogging of the lens assembly and avoiding affecting the use of the lens assembly. In this way, by arranging the lens assembly on the terminal, for example, arranging the lens assembly in the camera module of the terminal, when the terminal is placed in an environment with a low temperature after being used for a long time, the lens assembly will not fog, and the camera module can still be used normally, thereby helping to improve the user experience.

[0020] It should be understood that the general description above and the detailed description below are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0022] Figure 1 is a structural schematic diagram of a terminal according to an example embodiment of the present disclosure;

[0023] Figure 2 is a cross-sectional schematic diagram of a camera module according to an example embodiment of the present disclosure;

[0024] Figure 3 is a use scenario schematic diagram of a lens assembly of a camera module according to an example embodiment of the present disclosure;

[0025] Figure 4 is a structural schematic diagram of a lens assembly of a camera module according to an example embodiment of the present disclosure;

[0026] Figure 5 is a structural schematic view of a lens assembly of a camera module according to another example embodiment of the present disclosure;

[0027] Figure 6 is a structural block diagram of partial components of a terminal according to an example embodiment of the present disclosure.

[0028] Legend of Reference Signs

[0029] 1 - terminal; 10 - camera module; 11 - lens assembly; 111 - lens body; 112 - anti-fogging film; 1121 - conductive ion layer; 1122 - first base material layer; 1123 - first ITO layer; 1124 - second ITO layer; 1125 - second base material layer; 1126 - transparent adhesive layer; 1127 - polymer conductive layer; 113 - electrode shielding film; 114 - decorative film; 115 - positive electrode connecting piece; 116 - negative electrode connecting piece; 12 - housing; 121 - cavity; 122 - light transmission hole; 13 - adhesive layer; 20 - controller; 30 - temperature sensor; 40 - switch. DETAILED DESCRIPTION

[0030] The example embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following example embodiments described in the example embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0031] In the example embodiments of the present disclosure, unless otherwise indicated, the orientation words such as "inner" and "outer" refer to the inner and outer of the outline of the corresponding components. In addition, the terms "first", "second", etc. used in the example embodiments of the present disclosure are used to distinguish one element from another element, and do not have sequential and important meanings.

[0032] As shown in Figures 1 to 6 , the example embodiments of the present disclosure provide a lens assembly 11, a camera module 10 comprising the lens assembly 11, and a terminal 1 comprising the lens assembly 11 or the camera module 10. The terminal 1 can be any terminal 1 suitable for the camera module 10, such as a mobile phone, a tablet computer, etc., and the present disclosure does not limit the terminal 1.

[0033] As shown in Figure 1 and Figure 2As shown, the camera module 10 provided by the embodiment of the present disclosure can include a camera (not shown), a lens assembly 11 and a shell 12, the shell 12 is provided with a cavity 121 for mounting the camera, the shell 12 is provided with a light transmission hole 122 in communication with the cavity 121, and the lens assembly 11 covers the light transmission hole 122.

[0034] When assembling the camera module 10 on the terminal 1, the shell 12 of the camera module 10 can be mounted on the main body of the terminal 1 to realize the assembly of the camera module 10. Taking the installation of the rear camera module of the mobile phone as an example, the shell 12 can be mounted on the back cover of the mobile phone to realize the installation of the rear camera of the mobile phone.

[0035] Optionally, in an embodiment of the present disclosure, as shown, Figure 2 The lens body 111 of the lens assembly 11 can be bonded to the shell 12 through the adhesive layer 13 to seal the light transmission hole 122.

[0036] As shown, Figure 3 The lens assembly 11 provided by the embodiment of the present disclosure can include a lens body 111 and an anti-fogging film 112, the anti-fogging film 112 is arranged in a stack with the lens body 111 and located at least one side of the lens body 111, for example, the side (i.e. the inner side) of the lens assembly 11 close to the camera, the lens body 111 has a light transmission area, and the anti-fogging film 112 covers at least the light transmission area.

[0037] The lens body 111 and the anti-fogging film 112 are arranged in a stack, which is conducive to the compact arrangement of the lens body 111 and the anti-fogging film 112, so as to reduce the volume of the lens 11 and facilitate the lens 11 to maintain an aesthetic appearance. Moreover, by arranging the anti-fogging film 112 and making the anti-fogging film 112 cover the light transmission area of the lens body 111, even if the temperature of the outer side of the lens assembly 11 is low, such as when the lens assembly 11 is located in an air-conditioned environment, the temperature difference between the inner side of the lens assembly 11 (i.e. the internal environment of the terminal 1) and the interface of the inner side of the lens assembly 11 can be reduced, so that the water vapor existing in the inner side of the lens assembly 11 cannot condense on the inner side of the light transmission area of the lens body 111, the lens body 111 can be prevented from fogging, the lens assembly 11 can be prevented from being affected, and the use of the lens assembly 11 can be facilitated. In this way, by arranging the lens assembly 11 on the terminal 1, for example, by arranging the lens assembly 11 in the camera module 10 of the terminal 1, when the terminal 1 is placed in an environment with a low temperature after being used for a long time, the lens 11 of the camera module 10 will not fog, and the camera module 10 can still be used normally, so as to facilitate the improvement of the user experience.

[0038] Especially when the camera module 10 with the lens assembly 11 is used as a rear camera module of a mobile phone, the effect of improving the user experience of the mobile phone is particularly obvious. The size of the rear camera module of the mobile phone is relatively large, and the edge in contact with the rear cover of the mobile phone is relatively long, and water vapor can easily enter the inside of the mobile phone from this position. In addition, the current mobile phone has the problem of obvious heating after long time use. Therefore, the rear camera of the existing mobile phone is more prone to water mist. In the embodiment of the present disclosure, by setting the rear camera module of the mobile phone as the camera module 10, the lens of the rear camera module of the mobile phone can be effectively prevented from being fogged.

[0039] It should be noted that in the embodiment of the present disclosure, the lens assembly 11 can be applied in any appropriate place in addition to being applied in the camera module 10 of the terminal 1, for example, the lens assembly 11 can be applied to a transparent cover plate at a logo position of a product brand or model of the terminal 1.

[0040] In addition, it should be noted that in the embodiment of the present disclosure, the anti-fogging film 112 can achieve the effect of preventing fogging based on different ways, that is, the anti-fogging film 112 can have different anti-fogging mechanisms. For example, the anti-fogging film 112 can adopt conductive heating, or a hydrophilic anti-fogging coating layer or a hydrophobic anti-fogging coating layer can be arranged on the inner surface of the anti-fogging film 112 to achieve the anti-fogging of the lens assembly 11, which is not limited in the present disclosure.

[0041] The hydrophilic anti-fogging coating can make the surface of the object hydrophilic, and then the hydrophilic group factor in the anti-fogging coating can perform affinity adsorption on water, reduce the surface tension of water, and reduce the contact angle between water molecules and the surface of the object. Before the water vapor gathers into fine water droplets on the surface of the object, it will be wet, diffuse or adsorbed on the surface of the object, forming an ultra-thin transparent water film, thereby achieving the purpose of anti-fogging.

[0042] The hydrophobic anti-fogging coating makes the surface of the object hydrophobic, and then the hydrophobic group factor in the anti-fogging coating repels water molecules, increases the contact angle between water molecules and the surface of the object, so that the water vapor gradually condenses into water droplets with a large contact angle on the surface of the object, which is difficult to stay on the surface of the object, and will automatically slide off, thereby achieving the purpose of anti-fogging or waterproofing.

[0043] Optionally, in an embodiment of the present disclosure, the anti-fogging film 112 can achieve anti-fogging by conductive heating. As shown in FIG. 4, the anti-fogging film 112 can be a transparent conductive heating film, which is configured to generate heat when powered on to heat the lens body 111.

[0044] In this embodiment, the layered arrangement of the lens body 111 and the conductive heating film is beneficial for the conductive heating film to heat the lens 11 evenly, thus improving the anti-fogging effect of the lens assembly 11.

[0045] To further enhance the uniform heating effect of the conductive heating film on the lens body 111, the dimensions of the surfaces of the conductive heating film and the lens 111 facing each other can optionally be the same.

[0046] The conductive heating film in the above embodiments can be made of any suitable material, as long as it can conduct electricity and heat and its light transmittance meets the requirements. Optionally, such as Figure 4 As shown, in one embodiment of this disclosure, the conductive heating film may include a conductive ion layer 1121, which is configured to generate heat when energized, thereby heating and preventing fogging of the lens 11.

[0047] Optionally, the conductive ion layer 1121 may include any one or a combination of at least two of titanium dioxide, tungsten trioxide, and iridium dioxide.

[0048] Optionally, such as Figure 5 As shown, in another embodiment of this disclosure, the conductive heating film may include a polymer conductive layer 1127, which is configured to generate heat when energized, thereby heating and preventing fogging of the lens body 111.

[0049] Optionally, the polymer conductive layer 1127 can be a transparent and conductive high molecular organic polymer such as a polythiophene liquid crystal layer or a polyaniline liquid crystal layer.

[0050] Optionally, such as Figure 4 and Figure 5 As shown in this embodiment, the anti-fogging film 112 may further include an indium tin oxide (ITO) layer, which is stacked with the conductive ion layer 1121 and / or the polymer conductive layer 1127. ITO has good conductivity and transparency; when coated on the conductive ion layer 1121 or the polymer conductive layer 1127, it improves conductivity and transparency while effectively blocking harmful electronic radiation. Simultaneously, the ITO layer has good mechanical strength, providing protection for the conductive ion layer 1121 and / or the polymer conductive layer 1127.

[0051] It should be noted that, Figure 4 and Figure 5 Only the case where the anti-fogging film 112 is provided with a conductive ion layer 1121 and a polymer conductive layer 1127 is shown. In other embodiments of this disclosure, the anti-fogging film 112 may be provided with both a conductive ion layer 1121 and a polymer conductive layer 1127.

[0052] Optionally, as shown in Figure 4 and Figure 5 In the embodiments of the present disclosure, the ITO layer can include a first ITO layer 1123 and a second ITO layer 1124, and the anti-fogging film 112 can further include a first base material layer 1122, a second base material layer 1125, a positive electrode connecting piece 115 and a negative electrode connecting piece 116. From the side of the anti-fogging film 112 close to the lens body 111 to the side of the anti-fogging film 112 away from the lens body 111, the first base material layer 1122, the first ITO layer, the conductive ion layer 1121 and / or the polymer conductive layer 1127, the second ITO layer 1124 and the second base material layer 1125 are sequentially stacked, that is, the first ITO layer 1123 and the second ITO layer 1124 are located on the opposite sides of the conductive ion layer 1121 and / or the polymer conductive layer 1127.

[0053] One end of the positive electrode connecting piece 115 is electrically connected with the conductive ion layer 1121 and / or the polymer conductive layer 1127, and the other end is used for being electrically connected with the negative electrode of the power supply (such as the battery of a mobile phone), and one end of the negative electrode connecting piece 116 is electrically connected with the conductive ion layer 1121 or the polymer conductive layer 1127, and the other end is used for being electrically connected with the positive electrode of the power supply, so as to connect the anti-fogging film 112 in the electric circuit. As shown in Figure 4 and Figure 5 The end of the positive electrode connecting piece 115 and the negative electrode connecting piece 116 connected with the anti-fogging film 112 can be directly inserted into the inside of the anti-fogging film 112 and electrically connected with the conductive ion layer 1121 (or the polymer conductive layer 1127) and the corresponding ITO layer, or can be connected with only the corresponding ITO layer, for example, the positive electrode connecting piece 115 is connected with the first ITO layer 1123, and the negative electrode connecting piece 116 is connected with the second ITO layer 1124.

[0054] In the embodiments of the present disclosure, by arranging the first ITO layer 1123 and the second ITO layer 1124 on the two sides of the conductive ion layer 1121 and / or the polymer conductive layer 1127, the two ITO layers can be used as transparent conductive films, and at the same time, it is also beneficial to reduce the electronic radiation harmful to human body of the terminal 1.

[0055] The first base material layer 1122 is used as the base material layer of the first ITO layer 1123, and the second base material layer 1125 is used as the base material layer of the second ITO layer 1124. During processing, the first ITO layer 1123 and the second ITO layer 1124 can be processed on the corresponding base material layer by using, for example, magnetron sputtering deposition, vacuum evaporation deposition and sol-gel method.

[0056] Optionally, the material of the first substrate layer 1122 and the second substrate layer 1125 can be transparent plastic, for example, can be PET (Polyethylene glycol terephthalate, polyethylene terephthalate).

[0057] It can be understood that, in other embodiments of the present disclosure, compared with the embodiment shown in Figure 4 and Figure 5 , the anti-fogging film 112 can remove some film layers in the first ITO layer 1123, the second ITO layer 1124, the first substrate layer 1122, and the second substrate layer 1125, or add some film layers, and the present disclosure does not limit the embodiments of the present disclosure.

[0058] In order to facilitate the connection of the anti-fogging film 112 and the lens body 111, optionally, as shown in Figure 4 and Figure 5 , in an embodiment of the present disclosure, the anti-fogging film 112 layer can further include a transparent adhesive layer 1126, and the anti-fogging film 112 can be connected to the lens body 111 through the transparent adhesive layer 1126. Here, the anti-fogging film 112 can be directly connected to the lens body 111 through the transparent adhesive layer 1126, or the transparent adhesive layer 1126 can be connected to the electrode shielding film 113 (see below), as shown in Figure 4 and Figure 5 . The transparent adhesive layer, while connecting the anti-fogging film 112 and the lens body 111, does not affect the light transmission of the lens body 111.

[0059] Optionally, the transparent adhesive layer 1126 can be an OCA layer (Optically Clear Adhesive, optically clear adhesive), which has high transparency and strong adhesive ability, and is beneficial to ensure the light transmission of the lens assembly 11 and the reliability of the adhesive connection between the anti-fogging film 112 and the lens body 111.

[0060] As shown in Figure 4 and Figure 5 , in an embodiment of the present disclosure, the anti-fogging film 112 can further include an electrode shielding film 113, which is arranged between the anti-fogging film 112 and the lens body 111. By arranging the electrode shielding film 113, the anti-fogging film 112 can be prevented from radiating electromagnetic interference outward, for example, to avoid the phenomenon of electric leakage. In addition, the lens body 111 is mostly a glass sheet, and by arranging the electrode shielding film 113, metal ions in the lens body 111 can be blocked from entering the anti-fogging film 112, thereby avoiding the influence of metal ions in the glass sheet on the conductive performance of the anti-fogging film 112, and to a certain extent, improving the reliability of the anti-fogging film 112 in heating the lens body 111. Optionally, the shielding layer can be a silicon dioxide layer.

[0061] As shown in Figure 4 and Figure 5 Optionally, an electrode shielding film 113 can be arranged between the transparent adhesive layer 1126 of the anti-fogging film 112 and the lens body 111.

[0062] In the embodiments of the present disclosure, optionally, as shown in Figure 4 and Figure 5 The lens assembly 11 can further include a decorative film 114, and the anti-fogging film 112 is arranged between the lens body 111 and the decorative film 114. The decorative film 114 is provided with decorative lines, which plays a decorative role for the lens body 111. By arranging the anti-fogging film 112 between the lens body 111 and the decorative film 114, the decorative film 114 can also protect the inner side (the side away from the lens body 111) of the anti-fogging film 112.

[0063] Optionally, as shown in Figure 4 and Figure 5 The side of the decorative film 114 facing the anti-fogging film 112 can be connected (such as bonded) with the second base material layer 1125 of the anti-fogging film 112.

[0064] It can be understood that in other embodiments of the present disclosure, the decorative film 114 can also be arranged on the side of the anti-fogging film 112 away from the lens body 11.

[0065] In the embodiments of the present disclosure, the thickness of the anti-fogging film 112 and the electrode shielding film 113 is not limited. Optionally, in an embodiment of the present disclosure, the thickness of the anti-fogging film 112 can be 50-80 μm, and / or the thickness of the electrode shielding film 113 can be 50-75 μm. In this way, the total thickness of the anti-fogging film 112 and the electrode shielding film 113 is 100-155 μm. Within this range, the anti-fogging film 112 can play a role in heating the lens body 111, while avoiding occupying too much space in the shell 12 and the terminal 1 due to excessive thickness. The present disclosure does not limit the thickness of each layer of the anti-fogging film 112 shown in Figure 4 and Figure 5 The thickness of each layer of the anti-fogging film 112 shown in the present disclosure is not limited, and the specific value of each layer can be set as needed.

[0066] In this embodiment, the anti-fogging film 112 can be powered by a separate power supply to the heating structure, or the power supply built into the terminal 1 can be used to power the heating structure. Taking a mobile phone as an example, the positive terminal connector 115 and the negative terminal connector 116 of the anti-fogging film 112 can be connected to the contacts of the FPC (Flexible Printed Circuit), and electrically connected to the motherboard of the mobile phone through the FPC, thereby enabling conductive heating using the mobile phone's battery. Using the existing power supply on the terminal 1 saves costs.

[0067] like Figure 6 As shown, in one embodiment of this disclosure, terminal 1 may further include controller 20, temperature sensor 30, and switch 40. Switch 40 and temperature sensor 30 are both electrically connected to controller 20. Temperature sensor 30 is used to obtain a first temperature on the inner side of lens assembly 11 and a second temperature on the inner and outer sides of lens assembly 11. Controller 20 is used to control switch 40 to open or close according to the difference between the first temperature and the second temperature, so as to connect or disconnect the electrical connection between the power supply of terminal 1 and anti-fog film 112.

[0068] It should be noted that the terminal 1 may also include: a display module, a lens assembly 11 covering one side of the display area of ​​the display module, and the orthographic projection of the anti-fog film 112 on the display module at least partially overlapping the aforementioned display area.

[0069] Based on this, when terminal 1 is in an unused state, or when the monitoring results of temperature sensor 30 determine that, when terminal 1 is in use, the temperature difference between the inner side of lens assembly 11 (i.e., the temperature of the internal environment where the inner side of lens assembly 11 is located) and the outer side of lens assembly 11 (i.e., the temperature of the external environment where the outer side of lens assembly 11 is located) is small, and the conditions for condensation and atomization of water vapor on the inner side of lens assembly 11 are not met, the controller 20 can keep switch 4 in the off state to disconnect the electrical connection between the power supply of terminal 1 and anti-fog film 112, thereby reducing energy consumption. However, when it is determined that the temperature difference between the two is large, and water vapor will condense and atomize on the inner side of lens assembly 11, the controller 20 can switch switch 4 to the on state to connect the power supply of terminal 1 and anti-fog film 112, thereby enabling the anti-fog film 112 to generate heat and prevent fogging of the lens body 111. Therefore, by setting up the controller 20, temperature sensor 30 and switch 40, it is possible to ensure that the conductive heating film is heated when there is a heating demand, and to avoid unnecessary energy consumption when there is no heating demand.

[0070] The controller 20 can automatically control the opening or closing of the switch 40 based on the monitoring result of the temperature sensor 30, or can control the opening or closing of the switch 40 in response to the user's operation of heating the anti-fogging film 112 based on the monitoring result of the temperature sensor 30, which is not limited in the present disclosure.

[0071] Optionally, the temperature sensor 30 can include a first temperature sensor for monitoring the inner side of the lens assembly 11 and a second temperature sensor for detecting the outer side of the lens assembly 11.

[0072] Optionally, in the embodiment of the present disclosure, the controller 20 is further configured to adjust the current flowing through the series circuit between the power supply and the anti-fogging film 112 according to the difference between the first temperature and the second temperature. By adjusting the current flowing through the anti-fogging film 112, the heating power of the anti-fogging film 112 can be adjusted, so as to adjust the heating effect of the anti-fogging film 112. For example, when the temperature difference between the inner side and the outer side of the lens assembly 11 is large, or when the user expects to quickly adjust the temperature of the inner side and the outer side of the lens assembly 11 to be consistent to avoid fogging, the current flowing through the anti-fogging film 112 can be increased, so as to increase the heating power of the anti-fogging film 112, so as to heat the lens assembly 11 to the expected temperature in a shorter time.

[0073] There are various ways to achieve current adjustment, which are not limited in the present disclosure. For example, the controller 20 can adjust the size of the resistance between the power supply and the lens assembly 11 to adjust the size of the current. Other embodiments of the present disclosure will be readily apparent to those skilled in the art with the disclosure herein in conjunction with the description and practice of the present disclosure. The present application is intended to cover any variations, uses or adaptive changes of the present disclosure that follow the general principles of the present disclosure and include common knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and examples are only considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0074] It should be understood that the present disclosure is not limited to the precise structures described above and shown in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A lens assembly, characterized by, The lens assembly (11) comprises a lens body (111) and an anti-fogging film (112) arranged in layers with the lens body (111) and located on at least one side of the lens body (111), the lens body (111) has a light transmission area, and the anti-fogging film (112) covers at least the light transmission area; The anti-fogging film (112) is a transparent conductive heating film, and comprises a conductive ion layer (1121) and / or a polymer conductive layer (1127), the conductive ion layer (1121) or the polymer conductive layer (1127) is configured to generate heat when powered on to reduce the temperature difference between the first temperature of the inner side of the lens assembly (11) and the second temperature of the outer side of the lens assembly (11), thereby achieving anti-fogging of the lens assembly (11). The anti-fogging film (112) further comprises an indium tin oxide (ITO) layer arranged in layers with the conductive ion layer (1121) and / or the polymer conductive layer (1127).

2. The lens assembly of claim 1, wherein, The ITO layer comprises a first ITO layer (1123) and a second ITO layer (1124), and the anti-fogging film (112) further comprises a first base material layer (1122), a second base material layer (1125), a positive electrode connecting piece (115), and a negative electrode connecting piece (116). From the side of the anti-fogging film (112) close to the lens body (111) to the side away from the lens body (111), the first base material layer (1122), the first ITO layer (1123), the conductive ion layer (1121) and / or the polymer conductive layer (1127), the second ITO layer (1124), and the second base material layer (1125) are arranged in layers in sequence. One end of the positive electrode connecting piece (115) is electrically connected with the conductive ion layer (1121) and / or the polymer conductive layer (1127), and the other end is used for electrical connection with the negative electrode of a power supply, and one end of the negative electrode connecting piece (116) is electrically connected with the conductive ion layer (1121) and / or the polymer conductive layer (1127), and the other end is used for electrical connection with the positive electrode of the power supply.

3. The lens assembly of claim 1 or 2, wherein, The anti-fogging film (112) further comprises a transparent adhesive layer (1126), and the anti-fogging film (112) is connected with the lens body (111) through the transparent adhesive layer (1126).

4. The lens assembly of claim 1 or 2, wherein, The anti-fogging film (112) further comprises an electrode shielding film (113) arranged between the anti-fogging film (112) and the lens body (111).

5. The lens assembly of claim 4, wherein, The thickness of the anti-fogging film (112) is 50-80 μm, and / or the thickness of the electrode shielding film (113) is 50-75 μm.

6. The lens assembly of claim 1 or 2, wherein, The lens assembly (11) further comprises a decorative film (114), and the anti-fogging film (112) is located between the lens body (111) and the decorative film (114).

7. A camera module, comprising: The lens assembly (11) comprises the lens assembly (11) according to any one of claims 1-6.

8. The camera module of claim 7, wherein, The camera module (10) further comprises a camera and a shell (12), the shell (12) is provided with a cavity (121) for mounting the camera, the shell (12) is provided with a light transmission hole (122) in communication with the cavity (121), and at least part of the lens assembly (11) covers the light transmission hole (122).

9. A terminal, characterized by comprising: The lens assembly (11) as claimed in any one of claims 1-6 or the camera module (10) as claimed in claim 7 or 8.

10. The terminal according to claim 9, characterized by The terminal (1) further comprises a display module, the lens assembly (11) is arranged on one side of a display area of the display module, and a normal projection of the anti-fogging film (112) on the display module at least partially overlaps the display area.

11. The terminal according to claim 9, characterized by The anti-fogging film (112) is a transparent conductive heating film, which is configured to generate heat when powered; The terminal (1) further comprises a controller (20), a temperature sensor (30) and a switch (40), the switch (40) and the temperature sensor (30) are electrically connected to the controller (20), the temperature sensor (30) is used to acquire a first temperature of an inner side of the lens assembly (11) and a second temperature of an outer side of the lens assembly (11), and the controller (20) is used to control the switch (40) to open or close according to a difference between the first temperature and the second temperature, so as to connect or disconnect an electrical connection between a power supply of the terminal (1) and the anti-fogging film (112).

12. The terminal according to claim 11, characterized by The controller (20) is further used to adjust an electric current on a series circuit between the power supply and the anti-fogging film (112) according to the difference between the first temperature and the second temperature.

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