WO2018120775A1 - 闪光灯组件、移动终端 - Google Patents

闪光灯组件、移动终端 Download PDF

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Publication number
WO2018120775A1
WO2018120775A1 PCT/CN2017/093277 CN2017093277W WO2018120775A1 WO 2018120775 A1 WO2018120775 A1 WO 2018120775A1 CN 2017093277 W CN2017093277 W CN 2017093277W WO 2018120775 A1 WO2018120775 A1 WO 2018120775A1
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WO
WIPO (PCT)
Prior art keywords
flash
unit
reflector
drive
touch screen
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Application number
PCT/CN2017/093277
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English (en)
French (fr)
Inventor
陈金锋
Original Assignee
广州市朝通科技有限公司
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Application filed by 广州市朝通科技有限公司 filed Critical 广州市朝通科技有限公司
Publication of WO2018120775A1 publication Critical patent/WO2018120775A1/zh

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Classifications

    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • 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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • 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
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B44/00—Circuit arrangements for operating electroluminescent light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera

Definitions

  • the present invention relates to flash control technology, and more particularly to a flash unit and a mobile terminal.
  • a flash unit is disposed on the back of a mobile terminal such as a mobile phone or a tablet.
  • the flash unit can be used as a flashlight on the one hand, and can also be used as a fill light when photographing.
  • the flash flash unit generally only includes one flash lamp, so that the angle of the fill light is fixed when used as a fill light for shooting, which results in At the time of shooting, some areas that did not need to be filled were also filled, resulting in a poor exposure of the final photograph.
  • a first object of the present invention is to provide a flash unit with adjustable fill angle.
  • the present invention provides the following technical solutions:
  • a flash unit comprising:
  • a pedestal having a first wiring port disposed on a surface thereof, the first wiring port comprising a plurality of sets of relatively independent driving pins;
  • a reflective cover disposed on the base and having a flared shape; the reflective cover is provided with at least one layer; wherein when the number of layers of the reflective cover is greater than 1, the adjacent two reflective covers are concentrically disposed Have a certain spacing;
  • a plurality of flash lamps located in the reflector are in one-to-one correspondence with the driving pins and are electrically connected.
  • the flash is an LED flash or a xenon flash.
  • a plurality of flash brackets are disposed on the base and on the inner side of the reflector, the flash Mounted on the flash bracket.
  • the flash lamp is mounted on an inner wall of the reflector.
  • the height of the inner cover is smaller than the height of the flash on the outer cover.
  • a second object of the present invention is to provide a mobile terminal with adjustable fill angle.
  • the present invention provides the following technical solutions:
  • a mobile terminal includes a housing, a touch screen, and a camera; and further includes:
  • the flash unit of the above aspect wherein the housing is provided with a mounting slot for mounting the flash unit; and the mounting slot is provided with a second wiring port for mating with the first wiring port;
  • a flash control module configured to detect and output a corresponding flash control signal according to an input operation of the user on the touch screen; wherein the input operation includes opening, closing, and brightness adjustment of at least one flash;
  • a flash drive module electrically coupled to the flash control module, the second wiring port, the flash drive module configured to be responsive to the flash control signal and to the first wiring port through the second wiring port
  • the drive pin outputs the corresponding drive current.
  • the flash drive module comprises:
  • the flash drive circuit configured to receive a drive signal from the outside and output the corresponding flash output in response to the drive signal Corresponding drive current;
  • a drive distribution circuit is electrically coupled to each of the adjustable flash drive circuits, the drive distribution circuit being configured to receive the flash control signal to output a corresponding drive signal to a corresponding adjustable flash drive circuit (53).
  • the flash control module comprises:
  • a storage unit prestored with image model data of the flash unit and configured to transmit data of the image model to the touch screen for display;
  • An adjustment unit configured to scale and adjust an image model displayed on the touch screen based on an operation of the user on the touch screen
  • a selection unit configured to mark a corresponding flash in the image model as an active state based on an operation of the user on the touch screen
  • a parameter adjustment unit configured to adjust a brightness parameter of the activated flash based on an operation of the user on the touch screen
  • a signal output unit configured to generate and output a corresponding flash control signal based on the activated flash and corresponding brightness parameters.
  • the flash control module further includes:
  • An image detecting unit configured to perform image analysis on the image acquired by the camera to identify a darker region in the image, and generate a fill angle parameter according to the azimuth of the identified region relative to the image center ;
  • a selection unit configured to automatically mark the corresponding flash as an active state based on the fill angle parameter.
  • the mobile terminal is a mobile phone or a tablet.
  • the user can control the opening, closing and brightness of each flash according to his own needs, thus achieving different exposure effects;
  • the image in the lens can be automatically analyzed to determine the area that needs to be filled, so as to control the corresponding one or more flashes to be turned on;
  • the wide angle of the flash can be increased; thus, on the one hand, when used as a fill light, the problem of excessive uniformity of the fill light caused by the complement of the flash in a single direction is avoided; On the one hand, when used as a flashlight, it can also make the angle of light irradiation larger;
  • 1A is a front elevational view of a mobile terminal in an embodiment
  • FIG. 1B is an internal structural diagram of a mobile terminal in an embodiment
  • FIGS. 2A and 2B are schematic views showing one of mounting structures of a flash lamp in the embodiment
  • 3A and 3B are schematic views showing another mounting structure of a flash lamp in the embodiment
  • Figure 4 is a schematic view showing the operation of the flash unit in the embodiment
  • Figure 5 is a schematic diagram of a flash control module in the embodiment
  • Figure 6 is a schematic diagram of the flash drive module in the embodiment.
  • Fig. 7 is a schematic diagram showing the principle of automatic light filling in the embodiment.
  • the mobile terminal is a mobile phone or a tablet computer; and includes a casing 1 on which a touch screen 2 and a camera (not shown) are mounted; the back of the casing 1 is installed.
  • a flash control module 4 and a flash drive module 3 are also mounted in the housing 1; the flash control module 4 and the flash drive module 3 are integrated on the PCB 12.
  • the flash control module 4 is electrically coupled to the touch screen 2 to receive user's operational data from the touch screen 2 and to control the touch screen 2 to perform related content display.
  • the flash unit 3 includes a base 31, a reflector cover 32, and a plurality of flash lamps 34.
  • the base 31 is provided with a first connection port 311.
  • the first connection port (311) includes a plurality of sets of relatively independent drive leads. foot.
  • a second wiring port 33 is disposed in the mounting slot 11; the bottom of the second wiring port 33 is integrated on the PCB board 12 and electrically connected to the flash driving module 3 on the PCB board 12.
  • the reflector cover 32 has a flared shape and is disposed on the base 31.
  • the flash lamp 34 is mounted on the inner wall of the reflector cover 32.
  • the reflector cover 32 is provided with a lamp holder 321 for mounting the flash lamp 34; the inner wall of the reflector cover 32 is provided with corresponding conductive lines, and each of the flash lamps 34 is provided. Pass different conductive lines
  • the circuit is electrically connected to a driving pin in the first wiring port 311. Referring to Figure 2A, the reflector 32 is only one layer. Referring to FIG.
  • the number of layers of the reflector cover 32 is two, and the two reflectors 32 are concentrically arranged and have a certain pitch; and the height of the reflector 32 of the inner layer is smaller than that of the reflector 32 of the outer layer.
  • the height of the flash 34 It should be noted that the number of layers of the reflector 32 can be appropriately increased, but in any case, it is the same as the rule when the number of layers is two.
  • a plurality of flash brackets 35 are disposed on the base and located inside the reflector, and the flasher 34 is mounted on the flash bracket 32; the flash bracket 35 may be Columnar, it can be other shapes.
  • the operation principle of the flash unit 3 of one type is described.
  • the flash unit 34 is mounted on the side wall of the reflector 32; the initial illumination angle (the light is not reflected) is A2, wherein
  • the solid arrow is the brightest direct direction of the flash 34, that is, the right side of the figure is filled.
  • the dotted arrow is the direction of reflection of the light.
  • the angle of the reflected light is A3, and the compensation angle A1 to the left side is formed with respect to A2.
  • the light in the A2 area is the brightest, and A3 is darker than the A2. In this way, when compensating the right side, the darker area on the right side can be illuminated, and the difference in fill brightness between the left side and the right side is not excessive because there is no light compensation on the left side.
  • the user can freely change the type of the flash unit 3 (depending on the number of layers of the reflector 32 or the mounting structure of the flash unit 34) according to needs or preferences.
  • the first wiring port 311 and the second wiring port 331 described above have driving pins capable of accommodating the maximum number of flash lamps 34, that is, as the type of the reflecting cover 32 changes, the number of the flash lamps 34 also follows. The change, therefore, the number of drive pins in the first and second connection ports 311 and 331 can also be changed.
  • the flash control module 4 includes a storage unit, a display unit, an adjustment unit, an image detection list, a selection unit, a parameter adjustment unit, and a signal output unit.
  • the storage unit is pre-stored with an image model of at least one type of flash unit 3. Data (three-dimensional), that is, when the reflective cover 32 in the flash unit 3 is 1 layer, 2 layers, 3 layers, respectively, or when the mounting structure of the flash unit 34 is different, different image model data are respectively matched.
  • the image model can be completed by the relevant software design and stored in the storage unit. It is worthwhile to note that after the image model is designed, each flash 34 on it is added as a button function. Then, the selection operation is a well-known method, and the embodiment is not described herein again.
  • the storage unit is configured to transmit data of the image model to the touch screen 2 for display.
  • the display unit is configured with a corresponding viewing interface (displayed on the touch screen 2), and the user can enter the library of the image model by clicking the relevant operation button in the interface through the viewing interface; the user is moving according to the current installation.
  • the type of the flash unit 3 on the outer casing 1 of the terminal is selected to correspond to the image model.
  • the adjustment unit is configured to scale and adjust the image model based on the user's operation on the touch screen 2; that is, after the image model is displayed on the touch screen 2, the user can perform a sliding and zooming operation on the touch screen 2 (note When the related operation is performed, the position where the first touch with the touch screen 2 cannot overlap with the position of the flash 34 to avoid erroneous operation; the touch screen 2 converts the user's operation behavior into data and transmits to the adjustment unit; the adjustment unit Adjust the display state of the image model based on the received data. Since the means for implementing this technology is prior art, the embodiment will not be described again.
  • the selection unit is configured to mark the corresponding flash 34 as an active state based on the user's operation on the touch screen 2; specifically, after the user adjusts the image model to a suitable angle of view, the flash 34 in the image model is clicked, and the unit is selected. After the click operation data is acquired through the touch screen 2, the flash 34 is marked as an active state; when the user clicks on the activated flash 34 again, the selection unit marks the flash 34 as an inactive state.
  • the adjustment unit is configured to change the brightness parameter of the activated flash 34 based on the user's operation on the touch screen 2; in particular, the adjustment unit presents a corresponding adjustment button (click or slide) on the touch screen 2, the user is After the desired flash 34 has been selected (already marked as active), the adjustment unit generates the status parameter based on the operational data returned by the touch screen 2 (operation of the adjustment button).
  • the adjustment button is sequentially slid from left to right, the brightness parameter of the flash 34 is turned from off to on, and the brightness continues to increase.
  • the signal output unit is configured to output a corresponding flash control signal to the flash drive module 5 based on the activated flash 34 and its brightness parameter.
  • the processing unit assigns a fixed address to each flash 34; therefore, when the flash 34 in the image model is operated, the processing module associates the flash with the address of the operated flash 34. 34 current state parameters, generating corresponding flash control signals.
  • the flash control signal includes address information and status parameter information; wherein if the selected number of flashes 34 are multiple, the flash control signal includes more The address information and status parameter information of the flash unit 34.
  • the flash driving module 5 includes a driving distribution circuit and a plurality of adjustable flash driving circuits 53; wherein the driving distribution circuit includes a signal processing unit 51 and an analog switch 52; the signal processing unit 51 is electrically connected to the signal output unit to receive The flash control signal; the control end of the analog switch 52 and the respective input terminals are electrically connected to the signal processing unit 51, and the respective output terminals are respectively corresponding to and electrically connected to the respective adjustable flash drive circuits 53.
  • the adjustable flash drive circuit 53 adopts an adjustable flash drive circuit 53 of the PWM control type, and can also adopt an adjustable flash drive circuit 53 of other control forms; the adjustable flash drive circuit 53 is a relatively mature integration. The specific principle of the circuit is not described in this embodiment.
  • the output end of the adjustable flash drive circuit 53 is electrically connected to the second connection port 331, and has a one-to-one correspondence with the flash 34 after the connection, that is, one adjustable flash drive circuit 53 controls only one flash 34.
  • the signal processing unit 51 needs to control the adjustable flash drive circuit 53
  • the corresponding switch signal of the analog switch 52 is turned on by transmitting a corresponding switch signal to the control end of the analog switch 52, and then the corresponding channel can be turned to the corresponding channel.
  • the flash drive circuit 53 transmits a drive signal to cause the adjustable flash drive circuit 53 to operate (adjust the drive current output from the adjustable flash drive circuit 53 to effect activation, deactivation, and brightness adjustment of the flash 34).
  • the signal processing unit 51 includes a signal analysis unit, a drive signal generation unit, and a switch drive unit; wherein the drive signal generation unit has a multi-output function, for example, if a PWM control type adjustable flash drive circuit 53 is employed, the drive signal generation unit A PWM generator having multiple outputs is used; each output of the drive signal generating unit is electrically connected to one input of the analog switch 52, wherein each port of the drive signal generating unit and the analog switch 52 is connected to one The address information corresponds.
  • the signal analysis unit is configured to receive the flash control signal, and when it receives the flash control signal, parse it and parse the address and brightness parameters of the flash.
  • the driving signal generating unit After receiving the output command, the driving signal generating unit outputs a corresponding driving signal from the corresponding port, for example, if
  • the adjustable flash drive circuit 53 of the PWM control type controls the frequency of the PWM wave.
  • the switch driving unit After receiving the control command, the switch driving unit sends a switching signal to the analog switch 52 to turn on the channel for controlling the analog switch 52, so that the driving signal output by the driving signal generating unit can be transmitted.
  • the adjustable flash drive circuit 53 is operated to drive the flash 34 to operate.
  • control mode of the flash lamp 34 is the manual mode, and how to automatically control the flash lamp 34 will be described in detail below.
  • the image detecting unit is configured to perform image analysis on an image acquired by the camera; as can be seen from the figure, in the imaging area of the camera, the C1 area is substantially the area where the camera and the flash unit 3 are located; After being activated and acquiring the image, the image detecting unit performs the image and analyzes the image according to the image analysis (the corresponding image processing algorithm is prior art, and will not be described here), and the dark portion of the imaged region is identified through analysis. , for example, the C2 area in the figure.
  • the azimuth angle A4 of the C2 area is calculated according to the center of the imaging area, and the position of the azimuth angle A4 with respect to the area where the flash unit 3 is located is C11, that is, on the reflection cover 32.
  • the position corresponding to the flash 34 represents that the flash 34 that needs to control the position is turned on; after the flash 34 is determined, the fill angle parameter is generated based on the address.
  • the selection unit is further configured to automatically mark the respective flash 34 as an active state based on the fill angle parameter. Thus, after the corresponding flash 34 is marked as active, the signal output unit immediately outputs a corresponding flash control signal to turn the flash 34 on by the flash drive module.

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Abstract

本发明公开了一种闪光灯组件、移动终端；其中，闪光灯组件包括：基座，其表面设置有第一接线端口，所述第一接线端口包括若干组相对独立的驱动引脚；设置于所述基座上并呈扩口状的反射罩；所述反射罩至少设置有一层；其中，当所述反射罩的层数大于1时，相邻的两层反射罩呈同心设置并具有一定的间距；位于所述反射罩内的若干枚闪光灯，与所述驱动引脚一一对应并电连接。本发明的优点是：1、可对每一个闪光灯的开启、关闭以及亮度进行单独控制；2、可自动分析图像的补光需求，并控制相应的闪光灯开启；3、照射广角大、能够避免闪光灯对单一方向进行补光而导致的补光均匀度过差的问题。4、能够实现对补光角度、方向的控制。

Description

闪光灯组件、移动终端 技术领域
本发明涉及闪光灯控制技术，更具体地说，它涉及一种闪光灯组件、移动终端。
背景技术
目前，手机、平板等移动终端的背面均设置有闪光灯组件，该闪光灯闪光灯组件一方面可作为手电筒使用，另一方面，在拍照时，也可作为补光灯使用。然而，目前市面上的这类移动终端，其闪光灯闪光灯组件一般只包含一枚闪光灯，这样，在作为拍摄时的补光灯使用时，其补光的角度是固定不变的，这就造成致在拍摄时，一些不需要补光的区域也进行了补光，导致最终拍摄出来的照片的曝光度并不理想。
技术问题
针对现有技术存在的不足，本发明的第一个目的在于提供一种补光角度可调整的闪光灯组件。
问题的解决方案
技术解决方案
为实现上述目的，本发明提供了如下技术方案：
一种闪光灯组件，包括：
基座，其表面设置有第一接线端口，所述第一接线端口包括若干组相对独立的驱动引脚；
设置于所述基座上并呈扩口状的反射罩；所述反射罩至少设置有一层；其中，当所述反射罩的层数大于1时，相邻的两层反射罩呈同心设置并具有一定的间距；
位于所述反射罩内的若干枚闪光灯，与所述驱动引脚一一对应并电连接。
优选地，所述闪光灯为LED闪光灯或氙气闪光灯。
优选地，所述基座上且位于反射罩的内侧设置有若干闪光灯托架，所述闪光灯 安装于所述闪光灯托架上。
优选地，所述闪光灯安装于反射罩的内壁上。
优选地，在相邻的两层反射罩之间，较内一层的反射罩的高度小于较外一层的反射罩上的闪光灯的高度。
本发明的第二个目的在于提供一种补光角度可调整的移动终端。
为实现上述目的，本发明提供了如下技术方案：
一种移动终端，包括外壳、触摸屏以及摄像头；还包括：
上述方案中所述的闪光灯组件；其中，所述外壳上设置有供所述闪光灯组件安装的安装槽；所述安装槽内设置有与所述第一接线端口配合的第二接线端口；
闪光灯控制模块，其被配置为用于检测并根据用户在所述触摸屏上的输入操作以输出相应的闪光灯控制信号；其中，所述输入操作包括至少对一枚闪光灯的开启、关闭和亮度调节；
以及闪光灯驱动模块，其与所述闪光灯控制模块、第二接线端口电连接，所述闪光灯驱动模块被配置为响应于所述闪光灯控制信号并通过所述第二接线端口向第一接线端口中的驱动引脚输出相应的驱动电流。
优选地，所述闪光灯驱动模块包括：
若干可调闪光灯驱动电路，分别与若干枚所述闪光灯一一对应并电连接；所述闪光灯驱动电路被配置为用于从外部接收一驱动信号，并响应于所述驱动信号对相应的闪光灯输出相应的驱动电流；
驱动分配电路，与每一个可调闪光灯驱动电路电连接，所述驱动分配电路被配置为用于接收所述闪光灯控制信号向对应的可调闪光灯驱动电路(53)输出相应的驱动信号。
优选地，所述闪光灯控制模块包括：
存储单元，其预存储有闪光灯组件的图像模型数据，并被配置为将所述图像模型的数据并传输至所述触摸屏予以显示；
调整单元，其被配置为用于基于用户在触摸屏上的操作对显示于触摸屏上的图像模型进行缩放和角度调整；
选取单元，其被配置为用于基于用户在触摸屏上的操作将所述图像模型中相应的闪光灯标记为激活状态；
参数调节单元，其被配置为用于基于用户在触摸屏上的操作对被激活的闪光灯的亮度参数进行调节；
信号输出单元，其被配置为用于基于被激活的闪光灯及对应的亮度参数，生成并输出相应的闪光灯控制信号。
优选地，所述闪光灯控制模块还包括：
图像检测单元，其被配置为用于对摄像头获取的图像进行图像分析，以识别出该图像中较暗的区域，并根据所识别出的区域相对于图像中心的方位角，生成补光角度参数；
选取单元，其被配置为用于根据所述补光角度参数，自动地将相应的闪光灯标记为激活状态。
优选地，所述移动终端为手机或平板电脑。
发明的有益效果
有益效果
与现有技术相比，本发明的优点是：
1、用户可根据自己的需要，控制每一个闪光灯的开启、关闭以及亮度，从而实现不同的曝光效果；
2、在拍摄时，可自动地对镜头中的图像进行分析，确定需要补光的区域，以据此控制对应的一枚或多枚闪光灯打开；
3、通过设置扩口状的反射罩，能够增加闪光灯的照射广角；如此，一方面在作为补光使用时，避免闪光灯对单一方向进行补光而导致的补光均匀度过差的问题；另一方面在作为手电筒时，也能够使得光线照射的角度更大；
4、通过控制不同位置的闪光灯的启闭，能够实现对补光角度、方向的控制。
对附图的简要说明
附图说明
图1A为实施例中移动终端的正面示意图；
图1B为实施例中移动终端的内部结构图；
图2A、图2B为实施例中闪光灯的其中一种安装结构的示意图；
图3A、图3B为实施例中闪光灯的另外一种安装结构的示意图；
图4为实施例中闪光灯组件的工作示意图；
图5为实施例中闪光灯控制模块的原理图；
图6为实施例中闪光灯驱动模块的原理；
图7为实施例中自动补光的原理示意图。
附图标记：1、外壳；11、安装槽；12、PCB板；2、触摸屏；3、闪光灯组件；31、基座；311、第一接线端口；32、反射罩；321、灯座；33、第二接线端口；34、闪光灯；35、闪光灯托架；4、闪光灯控制模块；5、闪光灯驱动模块；51、信号处理单元；52、模拟开关；53、可调闪光灯驱动电路。
实施该发明的最佳实施例
本发明的最佳实施方式
下面结合实施例及附图，对本发明作进一步的详细说明，但本发明的实施方式不仅限于此。
如图1A、图1B所示的移动终端，该移动终端为手机或平板电脑；其包括外壳1，外壳1上安装有触摸屏2和摄像头(图中未示出)；外壳1的背面设置有安装槽11，该安装槽11用于安装闪光灯组件3。另外，在外壳1内还安装有闪光灯控制模块4和闪光灯驱动模块3；，该闪光灯控制模块4和闪光灯驱动模块3集成于PCB板12上。该闪光灯控制模块4与触摸屏2电连接，以从触摸屏2接收用户的操作数据，以及控制触摸屏2进行相关的内容显示。
参照图1B，该闪光灯组件3包括基座31、反射罩32、若干闪光灯34；其中，基座31上设置有第一接线端口311；第一接线端口(311)包括若干组相对独立的驱动引脚。安装槽11内设置有第二接线端口33；第二接线端口33的底部集成于PCB板12上，并与PCB板12上的闪光灯驱动模块3电连接。
其中，反射罩32呈扩口状，并且设置在基座31上。在一个实施例中，闪光灯34安装在反射罩32的内壁上，反射罩32上设置有供闪光灯34安装的灯座321；反射罩32的内壁上设置有相应的导电线路，每一闪光灯34均分别通过不同的导电线 路与第一接线端口311中的驱动引脚电连接。参照图2A，反射罩32仅为一层。参照图2B，反射罩32的层数为2层，两层反射罩32呈同心设置并具有一定的间距；并且较内一层的反射罩32的高度小于较外一层的反射罩32上的闪光灯34的高度。值得说明的是，反射罩32的层数可适当增加，但无论如何增加，都与层数为2层时的规律相同。在另一个实施例中，参照图3A、图3B，基座上且位于反射罩的内侧设置有若干闪光灯托架35，闪光灯34安装于所述闪光灯托架32上；该闪光灯托架35可以是柱状，也可以是其它形状。
参照图4，以一种类型的闪光灯组件3对其工作原理进行说明，图中，闪光灯34安装在反射罩32的侧壁上；其初始的照射角度(光线未经反射)为A2，其中，实线箭头为闪光灯34的最亮直射方向，即对图中的右侧进行补光。虚线箭头为光线的反射方向，光线经过反射罩内壁的反射后，其反射光线的范围角度为A3，相对于A2而言，形成了对左侧的补偿角度A1。从图中可以看到，由于光线叠加，使得A2区域的光线最亮，A3相对于A2较暗。如此一来，在对右侧进行补偿时，使得右侧较暗的区域能够被照亮，并且，也不会因为左侧没有光线补偿而导致左侧与右侧的补光亮度差距过大。
另外，由上可知，用户可根据需求或喜好，随意更换闪光灯组件3的类型(根据反射罩32层数的不同或者闪光灯34的安装结构的不同)。但需要说明的是，上述的第一接线端口311和第二接线端口331，具有能够适应最大闪光灯34数量的驱动引脚，即随着反射罩32的类型的改变，闪光灯34的数量也会跟随改变，因此，第一接线端口311和第二接线端口331中的驱动引脚能够处于使用状态的数量也会随之改变。
参照图5，闪光灯控制模块4包括存储单元、显示单元、调整单元、图像检测单、选取单元、参数调节单元以及信号输出单元；其中，存储单元预存储有至少一种类型闪光灯组件3的图像模型数据(三维)，即当闪光灯组件3中的反射罩32分别为1层、2层、3层...时，或者闪光灯34的安装结构不同时，则分别匹配有不同的图像模型数据，这些图像模型可通过相关的软件设计完成后，并存入到该存储单元中。值得说明的时，该图像模型被设计完成后，其上的每一枚闪光灯34，均被添加为按钮功能(可 进而点击选取操作)，这种技术为公知的手段，本实施例在此不再赘述。存储单元被配置为将所述图像模型的数据传输至所述触摸屏2上予以显示。在一个实施例中，显示单元配置有相应的查看界面(显示于触摸屏2)，用户可通过查看界面，通过点击界面中的相关操作按钮进入到图像模型的库中；用户在根据当前安装在移动终端的外壳1上的闪光灯组件3的类型，选取对应的图像模型。
调整单元被配置为用于基于用户在触摸屏2上的操作对图像模型进行缩放和角度调整；即在图像模型被显示于触摸屏2上后，用户可通过在触摸屏2上进行滑动、缩放操作(注意，在进行相关操作时，第一次与触摸屏2接触的位置不能与闪光灯34的位置重叠，以避免误操作)；触摸屏2将用户的这些操作行为转化为数据，传输至调整单元；调整单元则根据接收到数据，调整图像模型的显示状态。由于实现这种技术的手段为现有技术，本实施例不再赘述。
选取单元被配置为用于基于用户在触摸屏2上的操作将相应的闪光灯34标记为激活状态；具体是，用户在对图像模型调整到合适的视角后，点击图像模型中的闪光灯34，选取单元通过触摸屏2获取到点击操作数据后，将该闪光灯34标记为激活状态；当用户再次点击被激活的闪光灯34时，选取单元则将该闪光灯34标记为未激活状态。
调节单元被配置为用于基于用户在触摸屏2上的操作改变被激活的闪光灯34的亮度参数；具体是，调节单元在触摸屏2上呈现有相应的调节按钮(点击式或滑动式)，用户在选择完需要的闪光灯34后(已被标记为激活状态)，调节单元则根据触摸屏2返回的操作数据(对调节按钮的操作)，生成所述状态参数。以滑动式为例，当调节按钮从左向右依次滑移时，闪光灯34的亮度参数从关闭到开启，且亮度持续增加。
信号输出单元被配置为用于基于被激活的闪光灯34及其亮度参数，输出相应的闪光灯控制信号至闪光灯驱动模块5。在上述的图像模型中，处理单元为每一个闪光灯34分配了一个固定的地址；因此，当图像模型中的闪光灯34被操作时，处理模块则根据被操作的闪光灯34的地址，并结合该闪光灯34当前的状态参数，生成相应的闪光灯控制信号。进而，该闪光灯控制信号包含有地址信息和状态参数信息；其中，若选取的闪光灯34为多个，则闪光灯控制信号中包含有多 个闪光灯34的地址信息和状态参数信息。
参照图6，闪光灯驱动模块5包括驱动分配电路以及若干可调闪光灯驱动电路53；其中，驱动分配电路包括信号处理单元51和模拟开关52；信号处理单元51与所述信号输出单元电连接以接收闪光灯控制信号；模拟开关52的控制端和各个输入端与信号处理单元51电连接，各个输出端分别与各个可调闪光灯驱动电路53一一对应并电连接。本实施例中，该可调闪光灯驱动电路53采用PWM控制类型的可调闪光灯驱动电路53，也可以采用其它控制形式的可调闪光灯驱动电路53；可调闪光灯驱动电路53已是较为成熟的集成电路，本实施例不再赘述其具体的原理。可调闪光灯驱动电路53的输出端与第二接线端口331电连接，并且连接后与闪光灯34的关系为一一对应，即一个可调闪光灯驱动电路53只控制一枚闪光灯34。信号处理单元51需要控制可调闪光灯驱动电路53时，则通过向模拟开关52的控制端发送相应的开关信号，使得模拟开关52的相应通道导通，然后通过该导通的通道向对应的可调闪光灯驱动电路53发送驱动信号，以使可调闪光灯驱动电路53工作(调节可调闪光灯驱动电路53输出的驱动电流，以实现闪光灯34的启动、关闭以及亮度调节。
信号处理单元51包括信号分析单元、驱动信号发生单元和开关驱动单元；其中，驱动信号发生单元具有多路输出功能，例如，若采用PWM控制类型的可调闪光灯驱动电路53，则驱动信号发生单元采用具有多路输出的PWM发生器；驱动信号发生单元的每一个输出端均与模拟开关52的一个输入端电连接，其中，驱动信号发生单元与模拟开关52连接的每一个端口，均与一个地址信息对应。具体是，信号分析单元用于接收所述闪光灯控制信号，并在接收到闪光灯控制信号时，对其进行解析，并解析出闪光灯的地址和亮度参数。并根据解析出的信息数据，分别向驱动信号发生单元和开关驱动单元发送输出指令和控制指令；驱动信号发生单元接收到输出指令后，则从相应的端口输出对应的驱动信号，例如，若采用PWM控制类型的可调闪光灯驱动电路53，则控制PWM波的频率。而开关驱动单元在接收到控制指令后，则向模拟开关52发出开关信号，以使控制模拟开关52的通道导通，使得驱动信号发生单元输出的驱动信号能够传输 到对应的可调闪光灯驱动电路53中，使可调闪光灯驱动电路53工作，进而驱动闪光灯34工作。
以上内容中，对闪光灯34的控制方式为手动模式，下面将对如何自动对闪光灯34进行控制进行详细说明。
参照图7，图像检测单元被配置为用于对摄像头获取的图像进行图像分析；从图中可以看到，在摄像头的成像区域中，C1区域大致为摄像头和闪光灯组件3所在的区域；当摄像头被启动并获取到图像后，图像检测单元对该图像进行并根据图像分析(相应的图像处理算法为现有技术，在此不再赘述)，通过分析，识别出成像区域中光线较暗的部分，例如图中的C2区域。在确定区域C2为需要补光的区域后，则根据成像区域的中心计算出C2区域的方位角A4，方位角A4正对于闪光灯组件3所在的区域的位置为C11，即为反射罩32上的闪光灯34所对应的位置，代表需要控制该位置的闪光灯34开启即可；在确定了该闪光灯34后，根据其地址生成补光角度参数。选取单元还被配置为用于根据所述补光角度参数，自动地将相应的闪光灯34标记为激活状态。如此，在相应的闪光灯34被标记为激活状态后，信号输出单元立即输出相应的闪光灯控制信号，以通过闪光灯驱动模块开启该闪光灯34。

Claims (10)

  1. 一种闪光灯组件，其特征是，包括：
    基座(31)，其表面设置有第一接线端口(311)，所述第一接线端口(311)包括若干组相对独立的驱动引脚；
    设置于所述基座上并呈扩口状的反射罩(32)；所述反射罩(32)至少设置有一层；其中，当所述反射罩(32)的层数大于1时，相邻的两层反射罩(32)呈同心设置并具有一定的间距；
    位于所述反射罩(32)内的若干枚闪光灯(34)，与所述驱动引脚一一对应并电连接。
  2. 根据权利要求1所述的闪光灯组件，其特征是，所述闪光灯(34)为LED闪光灯或氙气闪光灯。
  3. 根据权利要求1所述的闪光灯组件，其特征是，所述基座(31)上且位于反射罩(32)的内侧设置有若干闪光灯托架(35)，所述闪光灯(34)安装于所述闪光灯托架(35)上。
  4. 根据权利要求1所述的闪光灯组件，其特征是，所述闪光灯(34)安装于反射罩(32)的内壁上。
  5. 根据权利要求1所述的闪光灯组件，其特征是，在相邻的两层反射罩(32)之间，较内
    一层的反射罩(32)的高度小于较外一层的反射罩(32)上的闪光灯(34)的高度。
  6. 一种移动终端，包括外壳(1)、触摸屏(2)以及摄像头；其特征是，还包括：
    如权利要求1-5任一所述的闪光灯组件(3)；其中，所述外壳(1)上设置有供所述闪光灯组件(3)安装的安装槽(11)；所述安装槽(11)内设置有与所述第一接线端口(311)配合的第二接线端口(33)；
    闪光灯控制模块(4)，其被配置为用于检测并根据用户在所述触摸屏(2)上的输入操作以输出相应的闪光灯控制信号；其中，所述输入操作包括至少对一枚闪光灯(34)的开启、关闭和亮度调节；
    以及闪光灯驱动模块(5)，其与所述闪光灯控制模块(4)、第二接线端口(33)电连接，所述闪光灯驱动模块(5)被配置为响应于所述闪光灯控制信号并通过所述第二接线端口(33)向第一接线端口(311)中的驱动引脚输出相应的驱动电流。
  7. 根据权利要求6所述的移动终端，其特征是，所述闪光灯驱动模块(5)包括：
    若干可调闪光灯驱动电路(53)，分别与若干枚所述闪光灯(34)一一对应并电连接；所述闪光灯驱动电路被配置为用于从外部接收一驱动信号，并响应于所述驱动信号对相应的闪光灯(34)输出相应的驱动电流；
    驱动分配电路，与每一个可调闪光灯驱动电路(53)电连接，所述驱动分配电路被配置为用于接收所述闪光灯控制信号向对应的可调闪光灯驱动电路(53)输出相应的驱动信号。
  8. 根据权利要求6所述的移动终端，其特征是，所述闪光灯控制模块(4)包括：
    存储单元，其预存储有闪光灯组件(3)的图像模型数据，并被配置为将所述图像模型的数据并传输至所述触摸屏(2)予以显示；
    调整单元，其被配置为用于基于用户在触摸屏(2)上的操作对显示于触摸屏上的图像模型进行缩放和角度调整；
    选取单元，其被配置为用于基于用户在触摸屏(2)上的操作将所述图像模型中相应的闪光灯(34)标记为激活状态；
    参数调节单元，其被配置为用于基于用户在触摸屏(2)上的操作对被激活的闪光灯(34)的亮度参数进行调节；
    信号输出单元，其被配置为用于基于被激活的闪光灯(34)及对应的亮度参数，生成并输出相应的闪光灯控制信号。
  9. 根据权利要求8所述的移动终端，其特征是，所述闪光灯控制模块(4)还包括：
    图像检测单元，其被配置为用于对摄像头获取的图像进行图像分析，以识别出该图像中较暗的区域，并根据所识别出的区域相对于图像中心的方位角，生成补光角度参数；
    选取单元，其被配置为用于根据所述补光角度参数，自动地将相应的闪光灯(34)标记为激活状态。
  10. 根据权利要求6所述的移动终端，其特征是，所述移动终端为手机或平板电脑。
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