WO2021139478A1 - 摄像头、摄像头控制方法及移动终端 - Google Patents

摄像头、摄像头控制方法及移动终端 Download PDF

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Publication number
WO2021139478A1
WO2021139478A1 PCT/CN2020/135641 CN2020135641W WO2021139478A1 WO 2021139478 A1 WO2021139478 A1 WO 2021139478A1 CN 2020135641 W CN2020135641 W CN 2020135641W WO 2021139478 A1 WO2021139478 A1 WO 2021139478A1
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WIPO (PCT)
Prior art keywords
electrochromic
camera
electrochromic device
module
brightness
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PCT/CN2020/135641
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English (en)
French (fr)
Inventor
刘伟
肖青
刘政
武广文
苏丹丹
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深圳市万普拉斯科技有限公司
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Publication of WO2021139478A1 publication Critical patent/WO2021139478A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
    • H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics

Definitions

  • This application relates to the field of terminal equipment, and specifically to a camera, a camera control method, and a mobile terminal.
  • a light reduction mirror is usually set in the camera to reduce the light entering the camera, so as to avoid overexposure of the photo.
  • the current dimmer mirror usually has a mechanical control structure, that is to say, in this dimmer mode, the mechanical switch action is controlled according to the detected light intensity to adjust the dimmer to achieve dimming. the goal of.
  • the dimming mirror and the dimming mirror switching structure are usually arranged on the outside of the lens, which not only has a complicated structure, but also increases the height of the camera.
  • one of the objectives of the present application is to provide a camera including a lens, a dimming component, and a sensor component for converting optical signals into electrical signals.
  • the optical component is arranged between the lens and the sensor component, and the dimming component includes an electrochromic module and an infrared light filter module arranged on the electrochromic module, wherein the electrochromic module
  • the color changing module has different colors under different working voltages, so that the electrochromic module has different transmittances.
  • the infrared light filter module includes an infrared cut-off film arranged on one side of the electrochromic module, and the infrared cut-off film is used to filter infrared light.
  • an anti-reflection film is further provided on the side of the electrochromic module opposite to the infrared cut-off film, and the anti-reflection film is used to increase the light passing through the camera.
  • the camera further includes a protective cover, and an anti-reflection film is further provided on the protective cover, and the anti-reflection film is used to increase the light passing through the camera.
  • the electrochromic module includes at least one first electrochromic device and at least one second electrochromic device, wherein the first electrochromic device has different colors under different working voltages.
  • the transmittance of the first electrochromic device is different, and the second electrochromic device has different colors under different working voltages, resulting in a different absorptivity of the second electrochromic device.
  • Another object of the present application is to provide a camera control method, which is applied to the camera according to any one of the present applications, and the method includes:
  • the operating voltage of the electrochromic module is adjusted according to the target brightness, so that the brightness of the light passing through the dimming component tends to the target brightness.
  • the step of obtaining the target brightness includes:
  • the brightness in the environment where the camera is located is used as the target brightness.
  • the electrochromic module includes a first electrochromic device, wherein the first electrochromic device has different transmittances under different working voltages, and the adjustment is performed according to the target brightness
  • the step of using the operating voltage of the electrochromic module to make the brightness of the light passing through the dimming component approach the target brightness includes:
  • the operating voltage of the first electrochromic device is adjusted according to the target brightness, so that the brightness of the light passing through the dimming component tends to the target brightness.
  • the electrochromic module further includes at least one second electrochromic device, and the second electrochromic device has different colors under different working voltages, thereby causing the second electrochromic device
  • the absorption rate is different
  • the method also includes:
  • the second electrochromic device is controlled according to the operating voltage corresponding to each of the second electrochromic devices so that the second electrochromic device absorbs the light of the corresponding wavelength band.
  • the present application also provides a mobile terminal, which includes the camera as described in any one of the present application.
  • the camera, camera control method, and mobile terminal of the present application realize the dimming of the camera by using electrochromic materials, and combine the electrochromic module with the existing infrared filter in the camera.
  • the infrared cut-off film is set on the module, and then the electrochromic module is set at the position of the original infrared light filter. In this way, the structure of the light reduction device can be simplified without adding other structures, and the cost of the camera can be reduced. height.
  • Figure 1 is a schematic diagram of the current camera structure
  • Figure 2 is a schematic structural diagram of a camera provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a light reduction component provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an electrochromic device provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the connection principle of the electrochromic device provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of the connection structure of the dimming component provided by an embodiment of the present application.
  • FIG. 7 is a first schematic flowchart of a camera control method provided by an embodiment of the present application.
  • FIG. 8 is a second schematic flowchart of a camera control method provided by an embodiment of the present application.
  • Icon 10-camera; 110-circuit board; 120-sensor component; 130-infrared filter; 140-lens; 150-motor; 160-bracket; 170-electronic components; 180-connector; 200-dimming Components; 300-control unit; 210-electrochromic module; 220-infrared cut-off film; 230-antireflection film; 211-conductive layer; 212-electrochromic layer; 213-electrolyte layer; 214-ion storage layer; 400-data processing unit.
  • the image collected by the camera 10 will be affected by infrared light and the intensity of the light. Therefore, the light reduction structure is usually used to reduce the light transmitted to the sensor.
  • the sensor on the camera 10 for converting light signals into electrical signals is relatively sensitive to infrared light. Therefore, in the camera 10, an infrared filter 130 is usually provided in the camera 10 to filter the transmission. The infrared light behind the lens 140 ensures the quality of the image.
  • the camera 10 will include a circuit board 110, a sensor assembly 120 arranged on the circuit board 110, and electronic components 170, and a bracket will be arranged on the circuit board 110. 160, a connector 180 and other structures.
  • the bracket 160 is provided with a lens 140 and a driving component for driving the lens 140 to rotate, such as a motor 150, etc., and the connector 180 is used to connect to a data processing unit.
  • a mechanical control structure is usually combined with a dimming mirror to achieve dimming. That is to say, in this dimming method, the mechanical switch action is controlled according to the detected light intensity to reduce the light. The light mirror is adjusted to achieve the purpose of dimming.
  • the dimming mirror and the dimming mirror switching structure are usually arranged outside the lens 140, which not only has a complicated structure, but also increases the height of the camera 10.
  • this application provides a dimming solution.
  • FIG. 2 is a schematic structural diagram of a camera 10 provided by an embodiment of the present application.
  • the camera 10 includes a lens 140, a dimming component 200, and a sensor component 120 for converting optical signals into electrical signals.
  • the dimming component 200 is disposed between the lens 140 and the sensor component 120.
  • the dimming component 200 includes an electrochromic module 210 and an infrared light filter disposed on the electrochromic module 210 A module, wherein the electrochromic module 210 has different colors under different working voltages, so that the electrochromic module 210 has different transmittances, thereby achieving the purpose of reducing light.
  • the lens 140 is an optical device for imaging, and the sensor assembly 120 is used to convert the light signal that passes through the lens 140 to the sensor assembly 120 into an electrical signal.
  • light reduction is achieved by using electrochromic materials, and an infrared light filter module is arranged on the electrochromic module 210, so that the electrochromic module 210 and the existing infrared light filter in the camera 10 are combined.
  • the electrochromic module 210 is installed on the lens 140 and the sensor component 120, that is to say, the light-reducing component 200 is installed on the original infrared light filter position.
  • the electrochromic module 210 in the light assembly 200 has a small volume and does not require mechanical action to adjust the light reduction amount. Therefore, the light reduction mirror and the space reserved for adjusting the structure of the light reduction mirror can be simplified. On the basis of adding other structures occupying space, the structure of the light reduction device is simplified, and the height of the camera 10 is reduced.
  • the infrared light filter module includes an infrared cut-off film 220 disposed on one side of the electrochromic module 210, and the infrared cut-off film 220 is used for Filter infrared light.
  • the infrared cut-off film 220 is provided on the electrochromic module 210 to ensure the filtering effect of infrared light in the camera 10.
  • An infrared cut-off film 220 is provided on the electrochromic module 210. Since the infrared cut-off film 220 has a small thickness, it is not necessary to adjust the positions between other structures in the existing camera 10.
  • an antireflection film 230 is further provided on the side of the electrochromic module 210 opposite to the infrared cutoff film 220, and the antireflection film 230 is used to increase the light passing through the camera 10.
  • an anti-reflection film 230 is provided to increase the transmittance of light after passing through the lens 140, so as to ensure the effect of the camera 10 in capturing images.
  • the camera 10 further includes a protective cover plate, and an anti-reflection film 230 is further provided on the protective cover plate, and the anti-reflection film 230 is used to increase the light passing through the camera 10 .
  • the sensor component 120 may be disposed on the circuit board 110, and the electronic component 170 may be disposed on the circuit board 110.
  • the electronic component 170 may be a passive component, such as a driver chip, Resistance and capacitance, etc.
  • a bracket 160 may be further provided, and then the light-reducing assembly 200 may be set on the bracket 160.
  • the bracket 160 may be pasted on the circuit board 110 by glue.
  • the bracket 160 can be provided with two protrusions extending toward the inside of the camera 10, so that the light reduction component 200 can be arranged on the protrusions.
  • the bracket 160 may also be provided with a driving structure (for example, a motor 150) for driving the rotation of the lens 140. In this way, the driving structure can carry the lens 140 to complete automatic focusing.
  • the electrochromic module 210 includes at least one first electrochromic device.
  • the electrochromic module 210 may be composed of a plurality of first electrochromic devices with different color changes, and then through the color changes of the different first electrochromic devices, the transparency of the entire electrochromic module 210 can be realized. Different effects of overrate. That is to say, each first electrochromic device can filter different components of light to different degrees, so that the intensity of the light after passing through the electrochromic module 210 is weakened.
  • the electrochromic module 210 may also include at least one second electrochromic device, wherein the first electrochromic device has different colors under different working voltages so as to make the first electrochromic device transparent With different overrates, the second electrochromic device has different colors under different working voltages, resulting in different absorptivity of the second electrochromic device.
  • two different electrochromic devices are provided in the electrochromic module 210, so that they can be used to dim the camera 10
  • the adjustment can be used to adjust the filter of the camera 10
  • the second electrochromic device is used to filter the light instead of the filter structure. In this way, the structure of the camera 10 can be further simplified.
  • the structure of the electrochromic device in this embodiment may include conductive layers 211 disposed on both sides, and a conductive layer 211 disposed between them. Between the electrochromic layer 212, the electrolyte layer 213, and the ion storage layer 214.
  • the conductive layer 211 of the electrochromic device is a transparent layer with good electrical conductivity and optical transparency.
  • the material can include indium tin oxide (ITO), and/or tin oxide (SnO 2 ), and/ Or antimony tin oxide (ATO).
  • the electrochromic layer 212 of the electrochromic device is composed of an electrochromic material, is the core layer of the electrochromic device, and is the layer where the color change reaction occurs.
  • the color-changing layer materials can be divided into inorganic and organic according to their types; inorganic materials can include tungsten trioxide (WO 3 ) or nickel oxide (NiO), and organic materials can include polythiophenes and their derivatives, viologens, four Thiofulvalene, metal phthalocyanine compounds, etc.
  • the color-changing layer may be composed of one or more of the above-mentioned inorganic materials, or may be composed of one or more of the above-mentioned organic materials.
  • electrochromic materials such as reflectance, light transmittance, absorptance, etc.
  • Electrochromism appears as a reversible change in the color and transparency of the material.
  • Materials with electrochromic properties can be called electrochromic materials.
  • Devices made of electrochromic materials can be called electrochromic devices.
  • the electrolyte layer 213 of the electrochromic device is composed of a special conductive material, which can be a liquid electrolyte material containing a solution such as lithium perchlorate and/or sodium perchlorate, or a solid electrolyte material.
  • the ion storage layer 214 of the electrochromic device plays a role in storing charges in the electrochromic unit, that is, stores corresponding counter ions when the material of the color change layer undergoes a redox reaction, thereby ensuring the charge balance of the entire electrochromic device.
  • the material of the color changing layer of the electrochromic device undergoes an oxidation-reduction reaction under the action of the voltage, and then the color changes.
  • electrochromic materials can be selected according to different requirements (filtering, shading).
  • the electrochromic device can change from a transparent color to a set color (the color is determined by the color-changing layer, and can be designed in various colors according to requirements).
  • FIG. 6 It should be noted that the operating voltage of the electrochromic device in this embodiment can be controlled by the control unit 300 and the data processing unit 400.
  • the electrochromic device can be connected to the control unit 300 in the camera 10, and the control unit 300 in the camera 10 can be connected to the data processing unit 400 in the mobile terminal.
  • the data processing unit 400 can generate control commands and transfer the control commands. It is sent to the control unit 300, and after receiving the control command, the control unit 300 outputs the corresponding voltage according to the control command to control the operation of the corresponding electrochromic device.
  • this embodiment also provides a camera 10 control method, which is applied to the camera 10 according to any one of this embodiment, and the method includes step S110 to step S120.
  • Step S110 Obtain the target brightness.
  • the target brightness is the desired adjusted brightness.
  • the target brightness may be the brightness calculated according to the light intensity in the environment of the camera 10, or the brightness set by the user.
  • step S120 the operating voltage of the electrochromic module 210 is adjusted according to the target brightness, so that the brightness of the light passing through the dimming component 200 tends to the target brightness.
  • the purpose of dimming is achieved by adjusting the operating voltage of the electrochromic module 210 in the camera 10, because in this embodiment, the dimming component 200 including the electrochromic module 210 is used instead of the dimming
  • the light-reducing assembly 200 is arranged at the corresponding position of the infrared filter 130. In this way, the space of the light-reducing mirror is saved, and there is no need to reserve a special space for the light-reducing assembly 200.
  • the step of obtaining the target brightness includes sub-step S111-sub-step S113.
  • Step S111 Obtain an image of the environment where the camera 10 is currently located.
  • Step S112 Perform brightness detection on the image to obtain the brightness in the environment where the camera 10 is located.
  • step S112 the brightness in the environment where the camera 10 is located is used as the target brightness.
  • the transmittance of the electrochromic module 210 gradually decreases as the working voltage increases, that is, the electrochromic module 210 is transparent when the working voltage is 0V.
  • the electrochromic module 210 includes a first electrochromic device, wherein the first electrochromic device has different transmittances under different working voltages, and the The step of adjusting the operating voltage of the electrochromic module 210 according to the target brightness so that the brightness of the light passing through the dimming component 200 tends to the target brightness includes first determining whether the target brightness is greater than A preset brightness threshold; then when the target brightness is greater than the brightness threshold, the operating voltage of the first electrochromic device is adjusted according to the target brightness, so that the light passing through the dimming component 200 is The brightness tends to the target brightness.
  • This embodiment is used to adjust the working voltage of the first electrochromic device when the target brightness is greater than the brightness threshold, so as to adjust the working voltage of the first electrochromic device according to the working voltage of the first electrochromic device. In this way, it can be ensured that when the desired brightness is not high, no dimming is performed, so that the brightness of the image is closer to the target brightness.
  • the electrochromic module 210 further includes at least one second electrochromic device, and the second electrochromic device has a different color under different working voltages, thereby causing the The absorption rate of the second electrochromic device (the absorption rate of light of the corresponding component of the second electrochromic device) is different, and the method further includes: first obtaining the filter parameter of each second electrochromic device ; Next, determine the corresponding operating voltage according to the filter parameters of each of the second electrochromic devices; and then control the second electrochromic device to operate according to the operating voltage corresponding to each of the second electrochromic devices The second electrochromic device is made to absorb the light of the corresponding wavelength band.
  • the electrochromic module 210 may also include a second electrochromic device. In this way, since the absorptivity of the second electrochromic device changes with the change of its working voltage, it can Achieve different filtering effects and shoot richer images.
  • the filter parameter of the second electrochromic device may be the ratio of light transmission, and the filter parameter may be manually set by the user.
  • This embodiment also provides a mobile terminal, which includes the camera 10 according to any one of the embodiments.
  • the camera 10 is arranged on the mobile terminal. In this way, the overall structure of the mobile terminal can be made simpler, and at the same time, the volume of the mobile terminal can be reduced.
  • the mobile terminal further includes a processor and a memory, and an executable program is stored in the memory.
  • the processor executes the executable program, it can implement the steps described in this embodiment. method.
  • the processor may be the aforementioned data processing unit 400 and control unit 300.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Blocking Light For Cameras (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

本申请公开了一种摄像头、摄像头控制方法及移动终端，所述摄像头包括镜头、减光组件和用于将光信号装换为电信号的传感器组件，所述减光组件设置在所述镜头与所述传感器组件之间，所述减光组件包括电致变色模组以及设置在所述电致变色模组上的红外光过滤模组，其中，所述电致变色模组在不同的电压下具有不同的颜色从而使得所述电致变色模组具有不同的透过率。在控制所述摄像头时，首先获取目标亮度，然后在根据目标亮度控制减光组件中的电致变色模组的工作电压即可。由于采用了电致变色模组来替代减光镜，并将减光镜与红外光过滤模组组合在一起，因此，本方案能够简化摄像头的结构，同时减小摄像头的高度。

Description

摄像头、摄像头控制方法及移动终端 【技术领域】
本申请涉及终端设备领域，具体而言，涉及一种摄像头、摄像头控制方法及移动终端。
【背景技术】
在拍照时，环境中的光线并不总是一致的，在有些环境中，环境光过强，就会导致拍摄的照片过度曝光。针对这一现象，通常会在摄像头中设置减光镜，用于减少进入摄像头中的光线，从而避免照片过度曝光的情况。目前的这种减光镜中，通常是机械式的控制结构，也就是说，这种减光方式中会根据检测到的光照强度控制机械开关动作，来对减光镜进行调节从而达到减光的目的。这种减光结构中，减光镜和减光镜切换结构通常设置在镜头外侧，不仅结构复杂，还会增加摄像头的高度。
【发明内容】
为了至少克服现有技术中的上述不足，本申请的目的之一在于提供一种摄像头，所述摄像头包括镜头、减光组件和用于将光信号装换为电信号的传感器组件，所述减光组件设置在所述镜头与所述传感器组件之间，所述减光组件包括电致变色模组以及设置在所述电致变色模组上的红外光过滤模组，其中，所述电致变色模组在不同的工作电压下具有不同的颜色从而使得所述电致变色模组具有不同的透过率。
可选地，所述红外光过滤模组包括设置在所述电致变色模组一侧的红外截止膜，所述红外截止膜用于过滤红外光。
可选地，所述电致变色模组上与所述红外截止膜相对的一侧还设置有增透膜，所述增透膜用于增加透过所述摄像头的光线。
可选地，所述摄像头还包括保护盖板，所述保护盖板上还设置有增透膜，所述增透膜用于增加透过所述摄像头的光线。
可选地，所述电致变色模组包括至少一个第一电致变色器件和至少一个第二电致变色器件，其中，所述第一电致变色器件在不同的工作电压下具有不同的颜色从而使得所述第一电致变色器件的透过率不同，所述第二电致变色器件在不同的工作电压下具有不同的颜色从而导致所述第二电致变色器件的吸收率不同。
本申请的另一目的还在于提供一种摄像头控制方法，应用于如本申请任一项所述的摄像头，所述方法包括：
获取目标亮度；
根据所述目标亮度调整所述电致变色模组的工作电压，以使透过所述减光组件的光线的亮度趋于所述目标亮度。
可选地，所述获取目标亮度的步骤包括：
获取摄像头当前所在环境的图像；
对所述图像进行亮度检测获得所述摄像头所在环境中的亮度；
将所述摄像头所在环境中的亮度作为目标亮度。
可选地，所述电致变色模组包括第一电致变色器件，其中，所述第一电致变色器件在不同的工作电压下具有不同的透过率，所述根据所述目标亮度调整所述电致变色模组的工作电压，以使透过所述减光组件的光线的亮度趋于所述目标亮度的步骤包括：
判断所述目标亮度是否大于预设的亮度阈值；
如果所述目标亮度大于所述亮度阈值，则根据所述目标亮度调整所述第一电致变色器件的工作电压，以使透过所述减光组件的光线的亮度趋于所述目标亮度。
可选地，所述电致变色模组还包括至少一个第二电致变色器件，所述第二电致变色器件在不同的工作电压下具有不同的颜色从而导致所述第二电致变色器件的吸收率不同，所述方法还包括：
获取每个所述第二电致变色器件的滤光参数；
根据每个所述第二电致变色器件的滤光参数确定对应的工作电压；
根据每个所述第二电致变色器件对应的工作电压控制所述第二电致变色器件以使所述第二电致变色器件吸收对应波段的光。
本申请还提供一种移动终端，所述移动终端包括如本申请任一项所述的摄像头。
相对于现有技术而言，本申请具有以下有益效果：
本申请的摄像头、摄像头控制方法及移动终端，通过采用电致变色材料来实现摄像头的减光，并将电致变色模组与摄像头中已有的红外光滤镜结合在一起，在电致变色模组上设置红外截止膜，然后将电致变色模组设置在原有红外光滤镜的位置上，如此，便可以在不增加其他的结构的基础上，简化减光器件的结构，降低摄像头的高度。
【附图说明】
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1是目前的摄像头的结构示意图；
图2是本申请实施例提供的摄像头的结构示意图；
图3是本申请实施例提供的减光组件的结构示意图；
图4是本申请实施例提供的电致变色器件的结构示意图；
图5是本申请实施例提供的电致变色器件的连接原理示意图；
图6是本申请实施例提供的减光组件的连接结构示意图；
图7是本申请实施例提供的摄像头控制方法的流程示意图一；
图8是本申请实施例提供的摄像头控制方法的流程示意图二。
图标：10-摄像头；110-线路板；120-传感器组件；130-红外滤光片；140-镜头；150-马达；160-支架；170-电子元器件；180-连接器；200-减光组件；300-控制单元；210-电致变色模组；220-红外截止膜；230-增透膜；211-导电层；212-电致变色层；213-电解质层；214-离子存储层；400-数据处理单元。
【具体实施方式】
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
摄像头10所采集的图像，会受到红外光以及光线强度的影响，因此，通常会通过减光的结构来减少传播至传感器的光线。对于摄像头10而言，摄像头10上用于将光信号转化为电信号的传感器对红外光比较敏感，因此，在摄像头10中，通常会在摄像头10中设置红外滤光片130，以过滤透过镜头140后的红外光，保证图像的质量。
请参照图1所示，在一种摄像头10的实施方式中，摄像头10中会包括线 路板110、设置在线路板110上的传感器组件120、电子元器件170，线路板110上还会设置支架160、连接器180等结构，支架160上设置镜头140以及用于带动镜头140转动的驱动组件，例如马达150等，连接器180用于连接数据处理单元。这种实施方式中，通常是将机械式的控制结构结合减光镜的方式来实现减光，也就是说，这种减光方式中会根据检测到的光照强度控制机械开关动作，来对减光镜进行调节从而达到减光的目的。这种减光结构中，减光镜和减光镜切换结构通常设置在镜头140外侧，不仅结构复杂，还会增加摄像头10的高度。
为了解决上述问题，本申请提供了一种减光方案。
请参照图2所示，图2是本申请实施例提供的摄像头10的结构示意图，所述摄像头10包括镜头140、减光组件200和用于将光信号装换为电信号的传感器组件120，所述减光组件200设置在所述镜头140与所述传感器组件120之间，所述减光组件200包括电致变色模组210以及设置在所述电致变色模组210上的红外光过滤模组，其中，所述电致变色模组210在不同的工作电压下具有不同的颜色从而使得所述电致变色模组210具有不同的透过率，进而能够达到减光的目的。
本实施例中，镜头140是光学器件，用于成像，传感器组件120用于将透过镜头140到达传感器组件120上的光信号转化为电信号。本实施例中，通过采用电致变色材料来实现减光，并在电致变色模组210上设置红外光过滤模组，从而将电致变色模组210与摄像头10中已有的红外光滤过功能结合在减光组件200上，然后将电致变色模组210设置在镜头140与所述传感器组件120，也就是说将减光组件200设置在原有红外光滤镜的位置上，由于减光组件200中的电致变色模组210的体积小，而且不需要通过机械的动作来调整减光量，因此，可以简化减光镜以及为调解减光镜的结构预留的空间，从而在不增加其他占用空间的结构基础上，简化减光器件的结构，降低摄像头10的高度。
请参照图3所示，可选地，本实施例中，所述红外光过滤模组包括设置在所述电致变色模组210一侧的红外截止膜220，所述红外截止膜220用于过滤红外光。
由于红外光不能透过红外截止膜220能，因此，本实施例中，在电致变色模组210上设置红外截止膜220，能够确保摄像头10中对红外光的过滤效果。在电致变色模组210上设置红外截止膜220，由于红外截止膜220具有厚度小的特点，因此，不需要对现有摄像头10中的其他结构之间的位置进行调整。
请继续参照图3所示，可选地，本实施例中，所述电致变色模组210上与所述红外截止膜220相对的一侧还设置有增透膜230，所述增透膜230用于增加透过所述摄像头10的光线。
本实施例中，设置增透膜230，用于增加透过镜头140后的光线地透过率，从而能够确保摄像头10采集图像的效果。
可选地，本实施例中，所述摄像头10还包括保护盖板，所述保护盖板上还设置有增透膜230，所述增透膜230用于增加透过所述摄像头10的光线。
请继续参照图2，本实施例中，传感器组件120可以设置在线路板110上，所述线路板110上可以设置电子元器件170，所述电子元器件170可以是被动元件，例如驱动芯片、阻容感等。在线路板110上，还可以设置支架160，然后在支架160上设置所述减光组件200。具体地，支架160可以通过胶水粘贴在线路板110上。
支架160上可以设置两个向摄像头10内部延伸的凸起，这样，就可以将减光组件200设置在凸起上。本实施例中，支架160上还可以设置用于驱动镜头140转动的驱动结构(例如，马达150)，这样，驱动结构可以携带镜头140完成自动对焦。
可选地，本实施例中，所述电致变色模组210包括至少一个第一电致变色器件。例如，所述电致变色模组210可以由多个具有不同颜色变化的第一电致变色器件组成，然后通过不同第一电致变色器件的颜色变化，实现整个电致变色模组210的透过率不同的效果。也就是说，每个第一电致变色器件可以对不同成分的光线进行不同程度的过滤，从而使得经过电致变色模组210后的光线的强度的到削弱。
电致变色模组210还可以包括至少一个第二电致变色器件，其中，所述第一电致变色器件在不同的工作电压下具有不同的颜色从而使得所述第一电致变色器件的透过率不同，所述第二电致变色器件在不同的工作电压下具有不同的颜色从而导致所述第二电致变色器件的吸收率不同。
本实施例中，在电致变色模组210中设置两种不同的电致变色器件(第一电致变色器件、第二电致变色器件)，这样，既可以用于对摄像头10进行减光调节，又能够用于对摄像头10进行滤光调节，使用第二电致变色器件来进行滤光，替代滤光结构，如此，便可以进一步简化摄像头10的结构。
请参照图4所示，本实施例中的电致变色器件(第一电致变色器件或者第二电致变色器件)的结构可以包括设置在两侧的导电层211、设置在导电层211之间的电致变色层212、电解质层213、离子存储层214。
为加深对电致变色器件的理解，以下详细对电致变色器件各层及工作原理进行阐述：
电致变色器件的导电层211，是一种透明层，具备良好的导电性和光学透过性，制成材料可以包括氧化铟锡(ITO)、和/或氧化锡(SnO 2)、和/或氧化锡锑(ATO)。
电致变色器件的电致变色层212由电致变色材料构成，是电致变色器件的核心层，是变色反应的发生层。变色层材料按照类型可分为无机和有机两种；无机材料可以包括三氧化钨(WO 3)或氧化镍(NiO)，有机材料可以包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯、金属酞菁类化合物等。变色层可以由上 述无机材料中的一种或者多种组成，也可以由上述有机材料中的一种或者多种组成。
电致变色材料的光学属性(如反射率、透光率、吸收率等)在外加电场的作用下会发生稳定、可逆的颜色变化的现象。电致变色在外观上表现为材料的颜色和透明度的可逆变化。具有电致变色性能的材料可以称为电致变色材料。利用电致变色材料制成的器件可以称为电致变色器件。
电致变色器件的电解质层213，由特殊导电材料组成，可以是含有高氯酸锂、和/或高氯酸纳等溶液的液态电解质材料，也可以是固态电解质材料。
电致变色器件的离子存储层214，在电致变色单元中起到存储电荷的作用，即在变色层材料发生氧化还原反应时存储相应的反离子，从而保证整个电致变色器件的电荷平衡。
请参照图5所示，当在两个透明的导电层211之间加上一定的电压时，电致变色器件变色层的材料在电压作用下发生氧化还原反应，进而发生颜色变化，对于不同作用的电致变色器件而言，可以根据不同的需求(滤光、遮光)来选择电致变色材料，当施加在电致变色器件两侧透明导电层211之间的电压由0V变为1V时，该电致变色器件可以由透明色变为设定的颜色(颜色由变色层决定，可以根据需求设计为各种颜色)。请参照图6所示，需要说明的是，本实施例中的电致变色器件的工作电压，可以通过控制单元300和数据处理单元400来控制。例如，在移动终端中。电致变色器件可以与摄像头10中的控制单元300连接，摄像头10中的控制单元300可以与移动终端中的数据处理单元400连接，这样，可以由数据处理单元400产生控制命令，并将控制命令传送给控制单元300，控制单元300接收到控制命令后，则会根据控制命令输出对应的电压来控制对应的电致变色器件工作。
请参照图7所示，本实施例还提供一种摄像头10控制方法，应用于如本实施例任一项所述的摄像头10，所述方法包括步骤S110-步骤S120。
步骤S110，获取目标亮度。
本实施例中，目标亮度是期望调整后的亮度，目标亮度可以是根据摄像头10所环境中的光线强度计算出的亮度，也可以是用户自己设定的亮度。
步骤S120，根据所述目标亮度调整所述电致变色模组210的工作电压，以使透过所述减光组件200的光线的亮度趋于所述目标亮度。
本实施例中，通过调整摄像头10中的电致变色模组210的工作电压来实现减光的目的，由于本实施例中，采用了包括电致变色模组210的减光组件200来替代减光镜，并将减光组件200设置在红外滤光片130对应位置，如此，节省了减光镜的空间，也不需要为减光组件200预留专门的空间。在调整过程中，并不存在机械结构的移动，因此，也不需要为电致变色模组210预留机械结构移动的空间，从而就能够简化整个摄像头10的结构，降低摄像头10的高度。
请参照图8，可选地，本实施例中，所述获取目标亮度的步骤包括子步骤S111-子步骤S113。
步骤S111，获取摄像头10当前所在环境的图像。
步骤S112，对所述图像进行亮度检测获得所述摄像头10所在环境中的亮度。
步骤S112，将所述摄像头10所在环境中的亮度作为目标亮度。
本实施例中，电致变色模组210的透过率随着工作电压的增大逐渐降低，也就是说，电致变色模组210在工作电压为0V时，是透明的。
可选地，本实施例中，所述电致变色模组210包括第一电致变色器件，其中，所述第一电致变色器件在不同的工作电压下具有不同的透过率，所述根据所述目标亮度调整所述电致变色模组210的工作电压，以使透过所述减光组件200的光线的亮度趋于所述目标亮度的步骤包括，首先判断所述目标亮度是否大于预设的亮度阈值；然后在所述目标亮度大于所述亮度阈值时，根据所述目标亮度调整所述第一电致变色器件的工作电压，以使透过所述减光组件200的光线的亮度趋于所述目标亮度。
本实施例用于在目标亮度大于亮度阈值时，调节第一电致变色器件的工作电压，从而根据第一电致变色器件的工作电压。如此，便可以确保期望的亮度不高的情况下，不再进行减光，从而使图像的亮度更加接近目标亮度。
可选地，本实施例中，所述电致变色模组210还包括至少一个第二电致变色器件，所述第二电致变色器件在不同的工作电压下具有不同的颜色从而导致所述第二电致变色器件的吸收率(对该第二电致变色器件对应成分的光的吸收率)不同，所述方法还包括，首先获取每个所述第二电致变色器件的滤光参数；接着，根据每个所述第二电致变色器件的滤光参数确定对应的工作电压；然后根据每个所述第二电致变色器件对应的工作电压控制所述第二电致变色器件以使所述第二电致变色器件吸收对应波段的光。
本实施例中，在电致变色模组210中还可以包括第二电致变色器件，如此，由于第二电致变色器件的吸收率会随着其工作电压的变化而变化，这样，就可以实现不同的滤光效果，拍摄出更丰富的图像。
本实施例中，第二电致变色器件的滤光参数可以是透光的比例，滤光参数可以由用户手动设定。
本实施例还提供一种移动终端，所述移动终端包括如本实施例任一项所述的摄像头10。
本实施例中，将所述摄像头10设置到移动终端上，如此，便可以使移动终端的整体结构更加简单，同时还能减小移动终端的体积。
本实施例中，可选地所述移动终端中还包括处理器和存储器，所述存储器中存储有可执行程序，所述处理器执行所述可执行程序时，可以实现本实施例所述的方法。其中，所述处理器可以是前述的数据处理单元400和控制单元300。
以上所述，仅为本申请的各种实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (10)

  1. 一种摄像头，其特征在于，所述摄像头包括镜头、减光组件和用于将光信号装换为电信号的传感器组件，所述减光组件设置在所述镜头与所述传感器组件之间，所述减光组件包括电致变色模组以及设置在所述电致变色模组上的红外光过滤模组，其中，所述电致变色模组在不同的工作电压下具有不同的颜色从而使得所述电致变色模组具有不同的透过率。
  2. 根据权利要求1所述的摄像头，其特征在于，所述红外光过滤模组包括设置在所述电致变色模组一侧的红外截止膜，所述红外截止膜用于过滤红外光。
  3. 根据权利要求2所述的摄像头，其特征在于，所述电致变色模组上与所述红外截止膜相对的一侧还设置有增透膜，所述增透膜用于增加透过所述摄像头的光线。
  4. 根据权利要求1所述的摄像头，其特征在于，所述摄像头还包括保护盖板，所述保护盖板上还设置有增透膜，所述增透膜用于增加透过所述摄像头的光线。
  5. 根据权利要求1-4任一项所述的摄像头，其特征在于，所述电致变色模组包括至少一个第一电致变色器件和至少一个第二电致变色器件，其中，所述第一电致变色器件在不同的工作电压下具有不同的颜色从而使得所述第一电致变色器件的透过率不同，所述第二电致变色器件在不同的工作电压下具有不同的颜色从而导致所述第二电致变色器件的吸收率不同。
  6. 一种摄像头控制方法，其特征在于，应用于如权利要求1-5任一项所述的摄像头，所述方法包括：
    获取目标亮度；
    根据所述目标亮度调整所述电致变色模组的工作电压，以使透过所述减光组件的光线的亮度趋于所述目标亮度。
  7. 根据权利要求6所述的方法，其特征在于，所述获取目标亮度的步骤包括：
    获取摄像头当前所在环境的图像；
    对所述图像进行亮度检测获得所述摄像头所在环境中的亮度；
    将所述摄像头所在环境中的亮度作为目标亮度。
  8. 根据权利要求7所述的方法，其特征在于，所述电致变色模组包括第一电致变色器件，其中，所述第一电致变色器件在不同的工作电压下具有不同的透过率，所述根据所述目标亮度调整所述电致变色模组的工作电压，以使透过所述减光组件的光线的亮度趋于所述目标亮度的步骤包括：
    判断所述目标亮度是否大于预设的亮度阈值；
    如果所述目标亮度大于所述亮度阈值，则根据所述目标亮度调整所述第一电致变色器件的工作电压，以使透过所述减光组件的光线的亮度趋于所述目标亮度。
  9. 根据权利要求6所述的摄像头控制方法，其特征在于，所述电致变色模组还包括至少一个第二电致变色器件，所述第二电致变色器件在不同的工作电压下具有不同的颜色从而导致所述第二电致变色器件的吸收率不同，所述方法还包括：
    获取每个所述第二电致变色器件的滤光参数；
    根据每个所述第二电致变色器件的滤光参数确定对应的工作电压；
    根据每个所述第二电致变色器件对应的工作电压控制所述第二电致变色器件以使所述第二电致变色器件吸收对应波段的光。
  10. 一种移动终端，其特征在于，所述移动终端包括如权利要求1-5任一项所述的摄像头。
PCT/CN2020/135641 2020-01-06 2020-12-11 摄像头、摄像头控制方法及移动终端 WO2021139478A1 (zh)

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