WO2022156143A1 - 外置闪光灯及外置闪光灯的校色系统 - Google Patents

外置闪光灯及外置闪光灯的校色系统 Download PDF

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Publication number
WO2022156143A1
WO2022156143A1 PCT/CN2021/101591 CN2021101591W WO2022156143A1 WO 2022156143 A1 WO2022156143 A1 WO 2022156143A1 CN 2021101591 W CN2021101591 W CN 2021101591W WO 2022156143 A1 WO2022156143 A1 WO 2022156143A1
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WO
WIPO (PCT)
Prior art keywords
color correction
circuit
external flash
information
terminal device
Prior art date
Application number
PCT/CN2021/101591
Other languages
English (en)
French (fr)
Inventor
曾伟玲
Original Assignee
深圳市影友摄影器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202120186202.5U external-priority patent/CN214704262U/zh
Priority claimed from CN202110100286.0A external-priority patent/CN112731735A/zh
Application filed by 深圳市影友摄影器材有限公司 filed Critical 深圳市影友摄影器材有限公司
Priority to US18/250,730 priority Critical patent/US20230403456A1/en
Priority to EP21920524.2A priority patent/EP4283393A1/en
Publication of WO2022156143A1 publication Critical patent/WO2022156143A1/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
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • 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
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0564—Combinations of cameras with electronic flash units characterised by the type of light source
    • G03B2215/0567—Solid-state light source, e.g. LED, laser
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission

Definitions

  • the present application relates to the technical field of photographic flashes, and in particular, to an external flash and a color correction system for the external flash.
  • An objective of the present application is to provide an external flash, which can be used for color correction of a lighting circuit.
  • the present application provides an external flash, comprising:
  • a driving circuit for driving the light source assembly to emit light
  • a first communication circuit for communicating with a terminal device to receive a color correction control instruction sent by the terminal device
  • the color correction processing circuit is connected with the driving circuit and is electrically connected with the first communication circuit.
  • the color correction processing circuit receives the color correction control command transmitted by the first communication circuit, and has The light-emitting information is subjected to color correction processing to generate color correction result information; the driving circuit drives the light source assembly to emit light according to the color correction result information.
  • the first communication circuit is further configured to receive light-emitting information sent by the terminal device, wherein the light-emitting information is collected by a color correction detection device.
  • the first communication circuit is configured to receive arrangement data of luminescence information sent by a terminal device; wherein, the arrangement data of the luminescence information is performed by the terminal device on the luminescence information collected by the color correction detection device. The information is arranged and processed.
  • the first communication circuit is a wireless communication circuit
  • the wireless communication circuit includes one or more of a WIFI module, a Bluetooth module, a Zig-Bee module, and an infrared communication module.
  • the color calibration detection device further includes a second communication circuit, and the second communication circuit is used for connecting with the color calibration detection device, wherein the color calibration detection device is used for detecting the light source assembly luminous information;
  • the color correction processing circuit receives the light-emitting information through the second communication circuit.
  • the first communication circuit includes a communication interface; wherein, the communication interface is one of a USB interface, a TYPE C interface, an RS232 interface, and an RS485 interface.
  • the external flash further includes a storage circuit, and the storage circuit is configured to store the lighting information.
  • the driving circuit further includes a timing receiving end, and the timing receiving end is configured to be connected to the terminal device to receive a timing control instruction sent by the terminal device.
  • the external flash further includes a timing control circuit, the timing control circuit is electrically connected to the driving circuit, and the timing control circuit is electrically connected to a color correction detection device; wherein, the correction detection The circuit is used to detect the luminous information of the light source assembly;
  • the timing control circuit sends timing signals to the drive circuit and the color correction detection device according to the color correction control instruction, so that the light source assembly emits light at a preset timing, and the color correction detection device is The luminous information is collected at a preset time sequence.
  • the external flash further includes a lighting control circuit, and the lighting control circuit is electrically connected to the color correction processing circuit;
  • the lighting control circuit has a programming terminal, the programming terminal is electrically connected with the color correction processing circuit, and the programming terminal receives the color correction result information to adjust the lighting control program in the lighting control circuit;
  • the driving circuit is electrically connected with the lighting control circuit to drive the light source assembly to emit light according to the adjusted lighting control program.
  • the present application also proposes a color correction system for an external flash, including an external flash, a color correction detection device, and a terminal device; the external flash is communicatively connected to the terminal device, and the color correction detection device is connected to the terminal. device communication connection;
  • the color correction detection device is used to detect the luminous information of the external flash, and the color correction processing circuit of the external flash processes the luminous information under the control of the terminal device to generate color correction result information;
  • the drive circuit of the external flash drives the light source components of the external flash to emit light according to the color correction result information.
  • the terminal device includes a display circuit, and the display circuit is configured to display a color correction control interface for inputting a color correction control command.
  • the terminal device is one of a mobile phone, a tablet computer, a notebook computer, or a wearable device.
  • the first communication circuit communicates with the terminal device to receive the color correction control instruction sent by the terminal device; and then the color correction processing circuit receives the color correction processing circuit transmitted by the first communication circuit.
  • the color correction control instruction is used to perform color correction processing on the light-emitting information of the light source assembly to generate color correction result information; the driving circuit drives the light source assembly to emit light according to the color correction result information, thereby realizing the control of the light source assembly. luminescence correction.
  • FIG. 1 is a block diagram of a circuit structure of an external flash according to an example implementation.
  • Fig. 2 is a block diagram of a circuit structure of a color correction system for an external flash according to an exemplary embodiment.
  • Fig. 3 is a block diagram of a circuit structure of a color correction system for an external flash according to another exemplary embodiment.
  • FIG. 4 is a block diagram of a circuit structure of a color correction system for an external flash according to another exemplary embodiment.
  • Fig. 5 is a block diagram of a circuit structure of a color correction system for an external flash according to yet another exemplary embodiment.
  • directional indications (such as up, down, left, right, front and rear) are used to explain the structure and movement of various elements of the present application not absolute but rather relative. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indications of these directions change accordingly.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of this application will be thorough and complete, and will convey the concepts of the example embodiments It will be fully conveyed to those skilled in the art.
  • the drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale.
  • the same reference numerals in the drawings denote the same or similar parts, and thus their repeated descriptions will be omitted.
  • an external flash is firstly proposed, and the external flash is used to calibrate its own color.
  • Color correction can refer to matching the actual lighting parameters of the external flash with the set lighting parameters; it can also refer to adjusting the consistency of the lighting parameters of each LED lamp bead in the external flash.
  • the lighting parameters may include brightness parameters, color temperature parameters, saturation parameters, and the like.
  • the external flash 10 includes a light source component 11 , a driving circuit 12 , a first communication circuit 13 , and a color correction processing circuit 14 .
  • the light source assembly 11 includes one or more LED light sources.
  • the drive circuit 12 is used to drive the light source assembly 11 to emit light;
  • the first communication circuit 13 is used to communicate with the terminal device 30 to receive a color correction control command sent by the terminal device 30;
  • the color correction processing circuit 14 is connected to the drive circuit 12 and is connected to the first
  • a communication circuit 13 is electrically connected, and the color correction processing circuit 14 receives the color correction control instruction transmitted by the first communication circuit 13, performs color correction processing on the luminous information of the light source assembly 11, and generates color correction result information;
  • the resulting information drives the light source assembly 11 to emit light.
  • the terminal device 30 may be a smart terminal, such as a mobile phone, a tablet, or a notebook computer; it may also be a smart wearable device, such as a smart head-mounted device, a smart bracelet, a smart belt, and the like.
  • the terminal device 30 includes a display circuit, and the display circuit is used to display a (Graphical User Interface, Graphical User Interface) interface for inputting color correction control instructions.
  • the color correction application software is installed in the terminal device 30, and when the color correction application software is run, the color correction control interface can be displayed on the display screen.
  • the color calibration control interface has a plurality of controls for the user to issue a color calibration start command, and to set color calibration parameters, color calibration mode selection (collectively referred to as color calibration control commands here), and the like.
  • the color calibration control interface may also have a display window to display the color calibration process. This embodiment improves the human-computer interaction capability, and is convenient for users to correct different parameters of the external flash 10 according to their own needs, and to correct the target parameters that meet their own requirements.
  • the smart terminal After receiving the color correction control instruction sent by the user, the smart terminal transmits the instruction to the color correction processing circuit 14 through the first communication circuit 13, so that the color correction processing circuit 14 performs the lighting information of the external flash 10 according to the color correction control instruction. Color correction processing to generate corresponding color correction result information.
  • the light emission information of the above-mentioned light source assembly 11 is collected by the color correction detection device 20 .
  • the luminous information here includes one or more information of luminance, chromaticity, saturation, and the like.
  • the external flash 10 can be viewed as a whole to collect parameters such as brightness, chroma, and saturation.
  • the luminous information is one or more parameters of brightness, chromaticity, saturation and other parameters, chromaticity and saturation of each LED light source in the flash light including multiple LED light sources. That is, in this embodiment, each LED light source is used as the minimum circuit to perform light emission correction on each LED in a targeted manner, so as to improve the accuracy of light emission correction. During detection, each LED light source can be made to emit light independently, so as to obtain the light emission information of the LED light source.
  • the color correction detection device 20 may include a color pick-up circuit, a data conversion circuit, a filter circuit, and the like.
  • the color pickup circuit may include various types of light sensors; for example, luminance sensors, chromaticity sensors, color temperature sensors, and the like.
  • the color calibration detection device 20 has an acquisition window, and the acquisition window is exposed on the surface of the color calibration detection device.
  • the collection window is disposed facing the light-emitting surface of the external flash 10 , so that the color pickup circuit can receive the light emitted by the external flash 10 .
  • the light emitted by the external flash 10 can be picked up multiple times.
  • lighting information sampling is performed.
  • the light-emitting modes include flash mode, modeling light mode, and always-on mode. In each mode, the luminescence information is picked up at least once.
  • the data conversion circuit is used for converting the sampled analog quantity of the luminescence information into a corresponding digital quantity.
  • the filter circuit is used to filter the input or output of the data conversion circuit to reduce noise interference.
  • the color correction processing circuit 14 may include a data arrangement circuit.
  • the data arrangement circuit is connected with the analog-to-digital conversion circuit to perform data arrangement on the digital quantity of the collected luminous information.
  • the specific arrangement of data may be determined according to a color correction algorithm, or may be arranged in a one-to-one correspondence according to the positions of the LEDs in the external flash 10 .
  • the data arrangement circuit may also be provided in the terminal device 30 .
  • the light-emitting information of the light source assembly 11 may be pre-stored in the color correction processing circuit 14 after being detected by the color correction detection device 20, and called when the color correction processing needs to be performed.
  • the color calibration detection device 20 can be connected to the terminal device 30, after detecting the luminescence information, the color calibration detection device 20 can transmit the luminescence information to the terminal device 30, and the terminal The device 30 directly sends the original light-emitting information to the external flash 10 , or can send the arrangement data that has undergone analog-to-digital conversion and data arrangement to form the light-emitting information to the external flash 10 .
  • the first communication circuit 13 is further configured to receive luminescence information sent by the terminal device 30 , wherein the luminescence information is collected by the color correction detection device 20 .
  • the first communication circuit 13 is configured to receive arrangement data of the luminescence information sent by the terminal device 30 ; wherein the arrangement data of the luminescence information is performed by the terminal device 30 on the luminescence information collected by the color correction detection device 20 . Arranged and processed.
  • the collected luminescence information is arranged and processed by the terminal device 30. Since data arrangement requires a relatively fast running speed and storage capacity, the powerful processor and large storage capacity of the terminal device 30 can be used to improve the data Arrangement speed. More importantly, since there is no need to set up an arrangement circuit in the color calibration detection device 20, the volume of the color calibration detection device 20 can be reduced, which is beneficial to improve the portability of the color calibration detection device 20.
  • the first communication circuit 13 of the external flash 10 is used to communicate with the terminal device 30 .
  • the first communication circuit 13 may be a wireless communication circuit; here the wireless communication circuit may be built into the color calibration detection device 20 or externally located outside the color calibration detection device 20 , such as an external USB wireless transceiver.
  • the first communication circuit 13 may be a wireless communication circuit; the wireless communication circuit includes one or more of a WIFI module, a Bluetooth module, a Zig-Bee module, and an infrared communication module. This embodiment improves the convenience of communication between the external flash 10 and the terminal device 30 , and can avoid setting an interface on the external flash 10 through the wireless communication circuit.
  • the first communication circuit 13 includes a communication interface; wherein, the communication interface is one of a USB interface, a TYPE C interface, an RS232 interface, and an RS485 interface.
  • the communication interface is one of a USB interface, a TYPE C interface, an RS232 interface, and an RS485 interface.
  • the color calibration detection device 20 further includes a second communication circuit 15 , and the second communication circuit 15 is used for connecting with the color calibration detection device 20 , wherein the color calibration detection device 20 uses It is used to detect the luminous information of the light source assembly 11 ; the color correction processing circuit 14 receives the luminous information through the second communication circuit 15 .
  • the second communication circuit 15 may be a wireless communication circuit; the wireless communication circuit includes one or more of a WIFI module, a Bluetooth module, or a Zig-Bee module and an infrared communication module. This embodiment improves the convenience of communication between the external flash 10 and the color correction detection device 20 .
  • the second communication circuit 15 may also be a communication interface electrically connected to the color correction processing circuit 14, such as one of a USB interface, a TYPE C interface, an RS232 interface, and an RS485 interface.
  • the external flash 10 further includes a storage circuit 16 , and the storage circuit 16 is used for storing lighting information.
  • the storage circuit 16 is electrically connected with the first communication circuit 13 or the second communication circuit 15 to receive the lighting information through the first communication circuit 13 or the second communication circuit 15 .
  • the storage circuit 16 may be ROM or RAM, etc., or may be a storage medium, such as a U disk.
  • the color correction and color correction processing circuit 14 also includes a data processing circuit.
  • the color correction processing algorithm can be stored in the data processing circuit.
  • the color correction processing algorithm performs logical calculation on the above-mentioned arranged luminous data to produce color correction result information.
  • the color correction result information may be an adjustment program or a specific light emission correction value.
  • the data processing circuit includes a correction chip, and the correction chip has a correction coefficient matrix, and the above-mentioned arranged sample data is calculated and processed based on the correction coefficient matrix.
  • the driving circuit 12 further includes a timing receiving end, and the timing receiving end is used for connecting with the terminal device 30 to receive the timing control instruction sent by the terminal device 30 .
  • the color correction detection device 20 collects the luminous information of the external flash 10 according to the timing control instruction.
  • the timing receiving end and the terminal device 30 may be directly connected or indirectly connected, which is not limited herein.
  • the timing control instruction is used to control the driving circuit 12 to drive the light source assembly 11 to emit light at a preset timing, and to control the lighting information collection circuit to collect lighting information at a preset timing.
  • the terminal device 30 sends a corresponding timing control signal to the timing receiving end and the color correction detection device 20 according to the color correction control instruction received by the terminal device 30 .
  • the timing control instruction may include the execution sequence of the lighting mode of the external flash 10, the lighting frequency, the timing of brightness change, the timing of color change, and the like.
  • the timing control instruction controls the color correction detection device 20 to collect the light emitted by the external flash 10 at a preset timing, so that the acquisition timing and the lighting timing are synchronized, so that the timing information corresponding to the collected lighting information can be determined, improving the Correction accuracy.
  • this embodiment allows the color correction detection device 20 to not perform data collection when the external flash 10 does not emit light, thereby helping to reduce noise interference received by the color correction detection device 20, improving the accuracy of data arrangement, and saving energy. .
  • the external flash 10 further includes a timing control circuit 17 , which is electrically connected to the driving circuit 12 ; the timing control circuit 17 is electrically connected to the color calibration detection device 20 ;
  • the color detection device 20 is used to detect the light-emitting information of the light source assembly; the timing control circuit 17 sends a timing signal to the drive circuit 12 and the color calibration detection device 20 according to the color calibration control instruction, so that the light source assembly 11 emits light at a preset timing, and makes the The color calibration detection device 20 collects the luminous information at a preset time sequence accordingly.
  • the terminal device 30 sends the color correction control instruction received by itself to the timing control circuit 17 , and the timing control circuit 17 sends corresponding timing control signals to the driving circuit 12 and the color correction detection device 20 .
  • the timing control instruction may include the execution sequence of the lighting mode of the external flash 10, the lighting frequency, the timing of brightness change, the timing of color change, and the like.
  • the timing control instruction controls the color correction detection device 20 to collect the light emitted by the external flash 10 at a preset timing, so that the acquisition timing and the lighting timing are synchronized, so that the timing information corresponding to the collected lighting information can be determined, improving the Correction accuracy.
  • this embodiment allows the color correction detection device 20 to not perform data collection when the external flash 10 does not emit light, thereby helping to reduce noise interference received by the color correction detection device 20, improving the accuracy of data arrangement, and saving energy. .
  • the external flash 10 further includes a lighting control circuit, which is electrically connected to the color correction processing circuit 14; the lighting control circuit has a programming terminal, which is electrically connected to the color correction processing circuit 14 for programming.
  • the terminal receives the color correction result information to adjust the lighting control program in the lighting control circuit; the driving circuit 12 is electrically connected with the lighting control circuit to drive the light source assembly 11 to emit light according to the adjusted lighting control program.
  • the setting of the burning end indicates that there is a burning module in the color correction processing circuit 14, and the burning module can communicate with the lighting control circuit by handshake, and meet the relevant communication protocols, so as to smoothly carry out the program burning and adjust the original lighting
  • the control program adjusts the driving current to the light source assembly 11 , thereby fundamentally correcting the deviation of the lighting effect of the external flash 10 .
  • the above-mentioned light-emitting information and color calibration result information only represent the substantial meaning of the signal.
  • the form will change; for example, the conversion of analog quantity and digital quantity, sending as a single signal or packing into data packets, etc., are not specifically limited here.
  • the solution of the present application also proposes a color correction system for an external flash, including the external flash 10, a color correction detection device 20 and a terminal device 30 in the above-mentioned embodiment; the external flash 10 is connected to the terminal device 30 for communication, The color calibration detection device 20 is connected in communication with the terminal device 30 ; the color calibration detection device 20 is used to detect the luminous information of the external flash 10 , and the color calibration processing circuit 14 of the external flash 10 processes the luminous information under the control of the terminal device 30 . , to generate color correction result information; the drive circuit 12 of the external flash 10 drives the light source assembly 11 of the external flash 10 to emit light according to the color correction result information.

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Abstract

一种外置闪光灯（10）包括光源组件（11）、驱动电路（12）、第一通讯电路（13）、校色处理电路（14）。光源组件（11）包括一个或多个LED光源。驱动电路（12）用于驱动光源组件（11）发光；第一通讯电路（13）用于与终端设备（30）通讯，以接收终端设备（30）发送的校色控制指令；校色处理电路（14）与驱动电路（12）连接，且与第一通讯电路（13）电连接，校色处理电路（14）接收第一通讯电路（13）所传输的校色控制指令，对光源组件（11）的发光信息进行校色处理，生成校色结果信息；驱动电路（12）根据校色结果信息驱动光源组件（11）的发光，实现对外置闪光灯（10）光源组件（11）的校色。

Description

外置闪光灯及外置闪光灯的校色系统 技术领域
本申请涉及拍摄用闪光灯技术领域，特别涉及一种外置闪光灯及外置闪光灯的校色系统。
背景技术
随着移动通讯技术的发展，移动终端在人们的生活和工作中发挥着越来越重要的作用。特别是一些具有照相功能的移动终端设备，例如手机、MP4、PDA、笔记本电脑等，这些移动终端所具有的照相功能给人们的生活带来了极大的乐趣。拍照需要光源，除了自然光外更多的时候需要人造光来辅助拍照，带照相功能的移动终端自带的人造光源往往满足不了实际使用需求，为此，人们常会利用外置闪光灯来进行辅助拍摄。
然而，外置闪光灯中的LED灯珠在长久使用后，存在色度与发光强度的偏差，导致实际的发光亮度、色度等发光参数无法达到预设的发光参数，从而无法达到预期的补光效果。
在所述背景技术部分公开的上述信息仅用于加强对本申请的背景的理解，因此它可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本申请的一个目的在于提出一种外置闪光灯，以能够用于对发光电路校色。
为解决上述技术问题，本申请采用如下技术方案：
根据本申请的一个方面，本申请提供一种外置闪光灯，包括：
光源组件；
驱动电路，用于驱动所述光源组件发光；
第一通讯电路，用于与终端设备通讯，以接收所述终端设备发送的校色控制指令；
校色处理电路，与所述驱动电路连接，且与第一通讯电路电连接，所述校色处理电路接收所述第一通讯电路所传输的所述校色控制指令，对所述光源组件的发光信息进行校色处理，生成校色结果信息；所述驱动电路根据所述校色结果信息驱动所述光源组件的发光。
根据本申请一实施例，所述第一通讯电路还用于接收所述终端设备发送的发光信息，其中所述发光信息由校色检测设备进行采集。
根据本申请一实施例，所述第一通讯电路用于接收终端设备发送的发光信息的排列数据；其中，所述发光信息的排列数据由所述终端设备对由校色检测设备采集到的发光信息进行排列处理而成。
根据本申请一实施例，所述第一通讯电路为无线通讯电路；
所述无线通讯电路包括WIFI模块、蓝牙模块、或Zig-Bee模块、红外通讯模块中的一种或多种。
根据本申请一实施例，所述校色检测设备还包括第二通讯电路，所述第二通讯电路用于与校色检测设备连接，其中，所述校色检测设备用于检测所述光源组件的发光信息；
所述校色处理电路通过所述第二通讯电路接收所述发光信息。
根据本申请一实施例，所述第一通讯电路包括通讯接口；其中，所述通讯接口为USB接口、TYPE C接口、RS232接口、RS485接口中的一种。
根据本申请一实施例，所述外置闪光灯还包括存储电路，所述存储电路用于保存所述发光信息。
根据本申请一实施例，所述驱动电路还包括时序接收端，所述时序接收端用于与所述终端设备连接，以接收所述终端设备发送的时序控制指令。
根据本申请一实施例，所述外置闪光灯还包括时序控制电路，所述时序控制电路与所述驱动电路电连接、所述时序控制电路供校色检测设备电连接；其中，所述校正检测电路用于检测所述光源组件的发光信息；
所述时序控制电路根据所述校色控制指令发出时序信号至所述驱动电路以及所述校色检测设备，以使所述光源组件以预设时序进行发光，并使所述校色检测设备以预设的时序采集所述发光信息。
根据本申请一实施例，所述外置闪光灯还包括发光控制电路，所述发光控制电路与所述校色处理电路电连接；
所述发光控制电路具有烧录端，所述烧录端与所述校色处理电路电连接，所述烧录端接收所述校色结果信息，以调整发光控制电路内的发光控制程序；
所述驱动电路与所述发光控制电路电连接，以根据调整后的所述发光控制程序，驱动所述光源组件的发光。
本申请还提出一种外置闪光灯的校色系统，包括外置闪光灯、校色检测设备以及终端设备；所述外置闪光灯与所述终端设备通讯连接，所述校色检测设备与所述终端设备通讯连接；
所述校色检测设备用于检测所述外置闪光灯的发光信息，所述外置闪光灯的校色处理电路在所述终端设备的控制下对所述发光信息进行处理，生成校色结果信息；所述外置闪光灯的驱动电路根据所述校色结果信息驱动所述外置闪光灯的光源组件的发光。
根据本申请一实施例，所述终端设备包括显示电路，所述显示电路用于显示校色控制界面，以供输入校色控制指令。
根据本申请一实施例，所述终端设备为手机、平板电脑、笔记本电脑、或穿戴式设备中的一种。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
本申请中，通过第一通讯电路与终端设备通讯，以接收所述终端设备发送的校色控制指令；进而校色处理电路所述校色处理电路接收所述第一通讯电路所传输的所述校色控制指令，对所述光源组件的发光信息进行校色处理，生成校色结果信息；所述驱动电路根据所述校色结果信息驱动所述光源组件的发光，由此实现了对光源组件的发光校正。
附图说明
通过参照附图详细描述其示例实施例，本申请的上述和其它目标、特征及优点将变得更加显而易见。
图1是根据一示例实施方式示出的一种外置闪光灯的电路结构框图。
图2是根据一示例实施方式示出的一种外置闪光灯的校色系统的电路结构框图。
图3是根据另一示例实施方式示出的一种外置闪光灯的校色系统的电路结构框图。
图4是根据另一示例实施方式示出的一种外置闪光灯的校色系统的电路结构框图。
图5是根据再一示例实施方式示出的一种外置闪光灯的校色系统的电路 结构框图。
附图标记说明如下：10、外置闪光灯；11、光源组件；12、驱动电路；13、第一通讯电路；14、校色处理电路；15、第二通讯电路；16、存储电路；17、时序控制电路；20、校色检测设备；30、终端设备。
具体实施方式
尽管本申请可以容易地表现为不同形式的实施方式，但在附图中示出并且在本说明书中将详细说明的仅仅是其中一些具体实施方式，同时可以理解的是本说明书应视为是本申请原理的示范性说明，而并非旨在将本申请限制到在此所说明的那样。
由此，本说明书中所指出的一个特征将用于说明本申请的一个实施方式的其中一个特征，而不是暗示本申请的每个实施方式必须具有所说明的特征。此外，应当注意的是本说明书描述了许多特征。尽管某些特征可以组合在一起以示出可能的系统设计，但是这些特征也可用于其他的未明确说明的组合。由此，除非另有说明，所说明的组合并非旨在限制。
在附图所示的实施方式中，方向的指示(诸如上、下、左、右、前和后)用于解释本申请的各种元件的结构和运动不是绝对的而是相对的。当这些元件处于附图所示的位置时，这些说明是合适的。如果这些元件的位置的说明发生改变时，则这些方向的指示也相应地改变。
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些示例实施方式使得本申请的描述将更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。附图仅为本申请的示意性图解，并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。
以下结合本说明书的附图，对本申请的较佳实施方式予以进一步地详尽阐述。
在本申请首先提出一种外置闪光灯，外置闪光灯用于对其自身进行校色。校色可以是指使外置闪光灯的实际发光参数与设定的发光参数匹配；还可以指调节外置闪光灯内每颗LED灯珠的发光参数一致性。发光参数可以包括亮 度参数、色温参数、饱和度参数等。
请参阅图1，在一实施例中，外置闪光灯10包括光源组件11、驱动电路12、第一通讯电路13、校色处理电路14。光源组件11包括一个或多个LED光源。驱动电路12用于驱动光源组件11发光；第一通讯电路13用于与终端设备30通讯，以接收终端设备30发送的校色控制指令；校色处理电路14与驱动电路12连接，且与第一通讯电路13电连接，校色处理电路14接收第一通讯电路13所传输的校色控制指令，对光源组件11的发光信息进行校色处理，生成校色结果信息；驱动电路12根据校色结果信息驱动光源组件11的发光。
在本实施例中，是由终端设备30发送的校色控制指令。终端设备30可以是智能终端、例如手机、平板、笔记本电脑；还可以是智能穿戴设备，例如智能头戴设备、智能手环、智能腰带等。
在一实施例中，终端设备30包括显示电路，显示电路用于显示(Graphical User Interface，图形用户接口)界面，以供输入校色控制指令。具体的，在终端设备30内安装校色应用软件，当运行校色应用软件时，可以在显示屏上显示校色控制界面。该校色控制界面具有多个控件用于供用户发出校色启动指令，以及设定校色参数、校色模式选择(在此统称为校色控制指令)等。该校色控制界面还可以具有显示窗口，以显示校色进程。该实施例提高了人机交互能力，便于用户根据自己的需求来对外置闪光灯10不同的参数进行校正，以及校正至符合自己要求的目标参数。
智能终端接收到用户发送的校色控制指令后，将该指令通过第一通讯电路13传输至校色处理电路14，以使校色处理电路14按照校色控制指令对外置闪光灯10的发光信息进行校色处理，从而生成相应的校色结果信息。
在此，由校色检测设备20采集上述光源组件11的发光信息。在此发光信息包括光亮度、色度、饱和度等中的一个或多种信息。在此可以以外置闪光灯10为一整体来看待，来采集其亮度、色度、饱和度等参数。在另一实施例中，发光信息为闪光灯包括多颗LED光源中，每一颗LED光源的亮度、色度、饱和度等参数、色度以及饱和度中的一种或多种参数。即，在该实施例中，以每一颗LED光源为最小电路，来针对性地对每一颗LED进行发光校正，提高发光校正的准确性。在检测时，可以使每个LED光源单独发光， 从而获取该LED光源的发光信息。
校色检测设备20可以包括拾色电路、数据转换电路、滤波电路等。根据所要校正的目标，拾色电路可以包括多种类型的光传感器；例如亮度传感器、色度传感器、色温传感器等。校色检测设备20具有采集窗口，采集窗口显露于校色检测设备的表面。该采集窗口面对外置闪光灯10的发光面设置，从而使拾色电路能够接收到外置闪光灯10所发出的光。在此，可以对外置闪光灯10所发出的光进行多次拾取。示意性的，使外置闪光灯10工作在多种发光模式下，均进行发光信息采样。发光模式在此有闪光模式、造型灯模式、常亮模式等。在每一个模式下，至少拾取一次发光信息。数据转换电路用于对采样到的发光信息的模拟量转换成相应的数字量。滤波电路用于对数据转换电路的输入或输出进行滤波，以降低噪声干扰。
校色处理电路14可以包括数据排列电路。数据排列电路与模数转换电路连接，以对所采集到的发光信息的数字量进行数据排列。具体数据排列的方式可以根据校色算法来确定，也可以按照外置闪光灯10中LED的位置排列来一一对应排列。实际上，数据排列电路也可以设置在终端设备30中。
在一示例中，光源组件11的发光信息可以是实现通过校色检测设备20检测后，预存在校色处理电路14中，在需要进行校色处理时，进行调用。
请参阅图2，在另一示例中，由于校色检测设备20可以与终端设备30连接，因此校色检测设备20在检测到发光信息之后，可以将该发光信息传输至终端设备30，由终端设备30直接发送原始发光信息给外置闪光灯10，也可以发送经过模数转换、数据排列后形成发光信息的排列数据发送至外置闪光灯10。
具体的，在一实施例中，第一通讯电路13还用于接收终端设备30发送的发光信息，其中发光信息由校色检测设备20进行采集。
在另一实施例中，第一通讯电路13用于接收终端设备30发送的发光信息的排列数据；其中，发光信息的排列数据由终端设备30对由校色检测设备20采集到的发光信息进行排列处理而成。
在该实施例中，由终端设备30对采集到的发光信息进行排列处理，由于数据排列需要较快的运行速度以及存储容量，因此利用终端设备30强大的处理器以及大存储容量，能够提高数据排列速度。更为重要的是，由于校色检 测设备20内无需设置排列电路，因此可以减小校色检测设备20的体积，有利于提高校色检测设备20的便携性。
在上述实施例中，外置闪光灯10的第一通讯电路13用于与终端设备30通讯。第一通讯电路13可以为无线通讯电路；在此无线通讯电路可以是内置于校色检测设备20内，也可以外置于校色检测设备20外，例如外置的USB无线收发器。第一通讯电路13可以为无线通讯电路；无线通讯电路包括WIFI模块、蓝牙模块、或Zig-Bee模块、红外通讯模块中的一种或多种。该实施例提高了外置闪光灯10与终端设备30通讯的便利性，通过无线通讯电路，能够免于在外置闪光灯10上设置接口。
在另一实施例中，第一通讯电路13包括通讯接口；其中，通讯接口为USB接口、TYPE C接口、RS232接口、RS485接口中的一种。在此，通讯接口可以有一个或多个。
请参阅图3，具体的，在一实施例中，校色检测设备20还包括第二通讯电路15，第二通讯电路15用于与校色检测设备20连接，其中，校色检测设备20用于检测光源组件11的发光信息；校色处理电路14通过第二通讯电路15接收发光信息。
在该实施例中，第二通讯电路15可以是无线通讯电路；无线通讯电路包括WIFI模块、蓝牙模块、或Zig-Bee模块、红外通讯模块中的一种或多种。该实施例提高了外置闪光灯10与校色检测设备20通讯的便利性。
第二通讯电路15也可以是与校色处理电路14电连接的通讯接口，例如USB接口、TYPE C接口、RS232接口、RS485接口中的一种。
请参阅图4，在一实施例中，外置闪光灯10还包括存储电路16，存储电路16用于保存发光信息。存储电路16与第一通讯电路13或第二通讯电路15电连接，以通过第一通讯电路13或第二通讯电路15接收发光信息。存储电路16可以是ROM或RAM等，也可以是存储介质，例如U盘。
校色校色处理电路14还包括数据处理电路，数据处理电路内可以保存有校色处理算法，校色处理算法将上述已排列完成的发光数据进行逻辑计算，从而生产校色结果信息。该校色结果信息可以是调整程序，也可以是具体的发光矫正值。
示意性的，在一示例中，数据处理电路包括校正芯片，校正芯片中具有 校正系数矩阵，基于该校正系数矩阵对上述排列后的采样数据进行计算处理。
还可以是，通过将预设参数值与采样到的发光信息排列数据进行比对，以校正外置闪光灯10的驱动电流，以校正后的驱动电流驱动外置闪光灯10能够使闪光灯的实际发光参数正好匹配设定参数。
在一实施例中，驱动电路12还包括时序接收端，时序接收端用于与终端设备30连接，以接收终端设备30发送的时序控制指令。校色检测设备20根据时序控制指令，对外置闪光灯10进行发光信息采集。
时序接收端与终端设备30可以是直接连接，也可以是间接连接，在此不做限定。时序控制指令用于控制驱动电路12以预设时序驱动光源组件11发光，并控制发光信息采集电路以预设的时序采集发光信息。
在此，终端设备30根据其自身接收到的校色控制指令发出相应的时序控制信号至时序接收端以及校色检测设备20。时序控制指令可以包含有外置闪光灯10的发光模式执行顺序、发光频率、亮度变化时序、色彩变化时序指令等。时序控制指令以预设的时序控制校色检测设备20采集外置闪光灯10所发出的光，使得采集时序与发光时序具有同步性，从而能够确定所采集到的发光信息所对应的时序信息，提高校正的准确性。并且，该实施例允许校色检测设备20在外置闪光灯10不发光时，不进行数据采集，从而有利于降低校色检测设备20受到的噪声干扰，提高数据排列的精准性；且有利于节约能源。
请参阅图5，在另一实施例中，外置闪光灯10还包括时序控制电路17，时序控制电路17与驱动电路12电连接；时序控制电路17供校色检测设备20电连接；其中，校色检测设备20用于检测光源组件的发光信息；时序控制电路17根据校色控制指令发出时序信号至驱动电路12以及校色检测设备20，以使光源组件11以预设时序进行发光，并使校色检测设备20相应以预设的时序采集发光信息。
在此，终端设备30根据其自身接收到的校色控制指令发送至时序控制电路17，时序控制电路17发出相应的时序控制信号至驱动电路12以及校色检测设备20。时序控制指令可以包含有外置闪光灯10的发光模式执行顺序、发光频率、亮度变化时序、色彩变化时序指令等。时序控制指令以预设的时序控制校色检测设备20采集外置闪光灯10所发出的光，使得采集时序与发 光时序具有同步性，从而能够确定所采集到的发光信息所对应的时序信息，提高校正的准确性。并且，该实施例允许校色检测设备20在外置闪光灯10不发光时，不进行数据采集，从而有利于降低校色检测设备20受到的噪声干扰，提高数据排列的精准性；且有利于节约能源。
在一实施例中，外置闪光灯10还包括发光控制电路，发光控制电路与校色处理电路14电连接；发光控制电路具有烧录端，烧录端与校色处理电路14电连接，烧录端接收校色结果信息，以调整发光控制电路内的发光控制程序；驱动电路12与发光控制电路电连接，以根据调整后的发光控制程序，驱动光源组件11的发光。
应当理解，烧录端的设置说明在校色处理电路14内具有烧录模块，烧录模块能够与发光控制电路进行握手通讯，并满足相关通讯协议，以顺利进行程序烧写，调整原有的发光控制程序，调整对光源组件11的驱动电流，从而从根本上校正了外置闪光灯10的发光效果偏差问题。
上述发光信息，校色结果信息仅表示信号的实质含义。实际上，在信号传输过程中，会发生形式的改变；例如模拟量和数字量的变换、以单个信号进行发送或打包成数据包的形式发送等，在此并不做具体限定。
请参阅图2，本申请方案还提出一种外置闪光灯的校色系统，包括上述实施例中外置闪光灯10、校色检测设备20以及终端设备30；外置闪光灯10与终端设备30通讯连接，校色检测设备20与终端设备30通讯连接；校色检测设备20用于检测外置闪光灯10的发光信息，外置闪光灯10的校色处理电路14在终端设备30的控制下对发光信息进行处理，生成校色结果信息；外置闪光灯10的驱动电路12根据校色结果信息驱动外置闪光灯10的光源组件11的发光。
虽然已参照几个典型实施方式描述了本申请，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本申请能够以多种形式具体实施而不脱离发明的精神或实质，所以应当理解，上述实施方式不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (13)

  1. 一种外置闪光灯，其特征在于，包括：
    光源组件；
    驱动电路，用于驱动所述光源组件发光；
    第一通讯电路，用于与终端设备通讯，以接收所述终端设备发送的校色控制指令；
    校色处理电路，与所述驱动电路连接，且与第一通讯电路电连接，所述校色处理电路接收所述第一通讯电路所传输的所述校色控制指令，对所述光源组件的发光信息进行校色处理，生成校色结果信息；所述驱动电路根据所述校色结果信息驱动所述光源组件的发光。
  2. 根据权利要求1所述的外置闪光灯，其特征在于，所述第一通讯电路还用于接收所述终端设备发送的发光信息，其中所述发光信息由校色检测设备进行采集。
  3. 根据权利要求1所述的外置闪光灯，其特征在于，所述第一通讯电路用于接收终端设备发送的发光信息的排列数据；其中，所述发光信息的排列数据由所述终端设备对由校色检测设备采集到的发光信息进行排列处理而成。
  4. 根据权利要求1所述的外置闪光灯，其特征在于，所述第一通讯电路包括无线通讯电路；
    所述无线通讯电路包括WIFI模块、蓝牙模块、或Zig-Bee模块、红外通讯模块中的一种或多种。
  5. 根据权利要求1所述的外置闪光灯，其特征在于，所述外置闪光灯还包括第二通讯电路，所述第二通讯电路用于与校色检测设备连接，其中，所述校色检测设备用于检测所述光源组件的发光信息；
    所述校色处理电路通过所述第二通讯电路接收所述发光信息。
  6. 根据权利要求1所述的外置闪光灯，其特征在于，所述第一通讯电路包括通讯接口；其中，所述通讯接口为USB接口、TYPE C接口、RS232接口、RS485接口中的一种。
  7. 根据权利要求1所述的外置闪光灯，其特征在于，所述外置闪光灯还包括存储电路，所述存储电路用于保存所述发光信息。
  8. 根据权利要求1所述的外置闪光灯，其特征在于，所述驱动电路还包括时序接收端，所述时序接收端用于与所述终端设备连接，以接收所述终端设备发送的时序控制指令。
  9. 根据权利要求1所述的外置闪光灯，其特征在于，所述外置闪光灯还包括时序控制电路，所述时序控制电路与所述驱动电路电连接；所述时序控制电路供校色检测设备电连接；其中，所述校色检测设备用于检测所述光源组件的发光信息；
    所述时序控制电路根据所述校色控制指令发出时序信号至所述驱动电路以及所述校色检测设备，以使所述光源组件以预设时序进行发光，并使所述校色检测设备相应以预设的时序采集所述发光信息。
  10. 根据权利要求1所述的外置闪光灯，其特征在于，所述外置闪光灯还包括发光控制电路，所述发光控制电路与所述校色处理电路电连接；
    所述发光控制电路具有烧录端，所述烧录端与所述校色处理电路电连接，所述烧录端接收所述校色结果信息，以调整发光控制电路内的发光控制程序；
    所述驱动电路与所述发光控制电路电连接，以根据调整后的所述发光控制程序，驱动所述光源组件的发光。
  11. 一种外置闪光灯的校色系统，其特征在于，包括权利要求1至10任意一项外置闪光灯、校色检测设备以及终端设备；所述外置闪光灯与所述终端设备通讯连接，所述校色检测设备与所述终端设备通讯连接；
    所述校色检测设备用于检测所述外置闪光灯的发光信息，所述外置闪光灯的校色处理电路在所述终端设备的控制下对所述发光信息进行处理，生成校色结果信息；所述外置闪光灯的驱动电路根据所述校色结果信息驱动所述外置闪光灯的光源组件的发光。
  12. 据权利要求11所述的校色系统，其特征在于，所述终端设备包括显示电路，所述显示电路用于显示校色控制界面，以供输入校色控制指令。
  13. 据权利要求11所述的校色系统，其特征在于，所述终端设备为手机、平板电脑、笔记本电脑、或穿戴式设备中的一种。
PCT/CN2021/101591 2021-01-22 2021-06-22 外置闪光灯及外置闪光灯的校色系统 WO2022156143A1 (zh)

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