WO2022156146A1 - 校色设备及外置闪光灯的校色系统 - Google Patents

校色设备及外置闪光灯的校色系统 Download PDF

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Publication number
WO2022156146A1
WO2022156146A1 PCT/CN2021/101594 CN2021101594W WO2022156146A1 WO 2022156146 A1 WO2022156146 A1 WO 2022156146A1 CN 2021101594 W CN2021101594 W CN 2021101594W WO 2022156146 A1 WO2022156146 A1 WO 2022156146A1
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WO
WIPO (PCT)
Prior art keywords
color correction
external flash
circuit
color
information
Prior art date
Application number
PCT/CN2021/101594
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 CN202120192379.6U external-priority patent/CN215867473U/zh
Priority claimed from CN202110109396.3A external-priority patent/CN113050345A/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 US18/259,338 priority Critical patent/US20240053659A1/en
Priority to EP21920527.5A priority patent/EP4283396A1/en
Publication of WO2022156146A1 publication Critical patent/WO2022156146A1/zh

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    • 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
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
    • G03B7/17—Selection of modes in flash units by exposure control arrangements
    • 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
    • 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 flash for photography, and in particular, to a color correction device and a color correction system for an external flash.
  • An objective of the present application is to provide a color correction device to achieve color correction of an external flash.
  • the present application provides a color calibration device for color calibration of an external flash; the color calibration device includes:
  • a light-emitting information collection circuit used for collecting light-emitting information of the external flash
  • a color correction processing circuit which is electrically connected to the luminous information acquisition circuit and used for performing color correction processing according to the luminous information to generate color correction result information;
  • the communication circuit is electrically connected with the color correction processing circuit to receive the color correction result information and send the color correction result information to the external flashlight a flash, so that the external flash corrects and emits light according to the color correction result information.
  • the communication circuit includes a wireless communication circuit, and the wireless communication circuit is electrically connected to the color calibration processing circuit to receive the color calibration result information and transmit it to the external device through wireless transmission. set the flash.
  • the communication circuit includes a communication interface, the communication interface is electrically connected to the color correction processing circuit, and the communication interface is electrically connected to the external flash through a connecting wire, so as to communicate with the external flash.
  • a flash is placed to transmit the color correction result information.
  • the color calibration device further includes a burning circuit, and the burning circuit is electrically connected to the color calibration processing circuit and the external flash, so as to output the signal output from the communication interface.
  • the color calibration result information is programmed into the control chip of the external flash.
  • the color correction device further has a timing control circuit, the timing control circuit is electrically connected to the luminous information collection circuit and the external flash, and the timing control circuit is used to control the external flash.
  • the flashlight is set to emit light at a preset timing, and the lighting information acquisition circuit is controlled to collect the lighting information at a preset timing accordingly.
  • the light-emitting information includes one or more of brightness, chromaticity, and saturation of light emitted by the external flash.
  • the external flash includes a plurality of LED light sources; the light emission information includes one or more of the brightness, chromaticity and saturation of each LED light source among the plurality of LED light sources. kind.
  • the color correction device includes a main body and a light pickup portion protruding from one side of the main body, and the light-emitting information collection circuit is located in the light pickup portion.
  • the main body and the light pickup part are detachably connected.
  • the color correction device further includes a human-computer interaction component; the human-computer interaction component is disposed on the main body;
  • the human-computer interaction component is electrically connected to the light-emitting information collection circuit and the color correction processing circuit, and the human-computer interaction component is used for receiving color correction instructions, receiving color correction setting parameters, and switching color correction modes. one or more.
  • the human-computer interaction component includes one or more of a key receiving component, a voice input component, a touch input component, and a gesture control component.
  • the color correction device further includes a display screen, and the display screen is disposed on the main body;
  • the display screen is used to display a color correction control interface; the display content of the color correction control interface includes one or more of color correction start/stop information, color correction parameter setting information, and color correction mode switching information.
  • the color calibration device is a handheld device.
  • a color correction system for an external flash which includes an external flash and the color correction device.
  • the light emission information collection circuit of the color correction device is used for collecting light emission information of the external flash, and the color correction processing circuit of the color correction device is used for performing color correction processing according to the light emission information to generate color correction result information;
  • the communication circuit of the color correction device communicates with the external flash to send the color correction result information to the external flash, so that the external flash performs color correction according to the color correction result information.
  • the light emission information collection circuit of the technical solution of the present application can collect light emission information of the external flash; the color correction processing circuit performs color correction processing according to the light emission information, and generates color correction result information; the color correction result information is used for transmission to The external flash is used to correct the light emission of the external flash, and the color correction device of the solution of the present application realizes the light emission correction of the external flash.
  • the color correction device of the present application integrates the functions of luminous information collection, color correction processing, and communication, and does not need to use other external devices, which improves the convenience of external flash color correction and improves the color correction efficiency.
  • FIG. 1 is a schematic structural diagram of a color calibration device according to an exemplary embodiment.
  • FIG. 2 is a side view of FIG. 1 .
  • Fig. 3 is a block diagram of a circuit structure of a color calibration device according to an exemplary embodiment.
  • Fig. 4 is a block diagram showing a circuit structure of a color correction device connected to an external flash according to an exemplary embodiment.
  • Fig. 5 is a block diagram showing a circuit structure of a color correction device connected to an external flash according to another exemplary embodiment.
  • FIG. 6 is a block diagram showing the circuit structure of a color correction device connected to an external flash according to 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.
  • a color correction device is first proposed.
  • the color correction device is used for color correction of an external flash.
  • Color correction may refer to matching the actual lighting parameters of the external flash with the set lighting parameters; it may also refer to adjusting the external flash.
  • the luminous parameters of each LED lamp bead are consistent.
  • the lighting parameters may include brightness parameters, color temperature parameters, saturation parameters, and the like.
  • the color correction apparatus 20 includes a main body 201 and a light pickup portion 202 protruding from one side of the main body 201 .
  • the main body 201 is substantially square, and the main body 201 has an accommodating cavity for accommodating one or more circuit boards. It should be understood that the relevant circuits of the present application may be partially or completely laid on the circuit board.
  • a switch key 205 is also provided on the side of the main body 201 . When the switch key 205 is on, the color correction device 20 is activated, and when the switch key 205 is off, the color correction device 20 is turned off.
  • the light pickup unit 202 is located on the upper side of the main body.
  • the light pickup portion 202 is also set to be approximately circular in the present application, so as to uniformly pick up the light emitted by the external flash 10 .
  • the color calibration device 20 of the present application may be a handheld device, so as to be carried outdoors so as to perform color calibration on an external flash at any time.
  • the main body 201 and the light pickup part 202 may be detachably connected. Specifically, it may be a snap connection or a sliding groove is provided on the main body 201 , a slider is provided on the light pickup part 202 , and the sliding groove and the sliding block are matched to connect.
  • the color correction device 20 includes a luminous information collection circuit 21 , a color correction processing circuit 22 , and a communication circuit 23 .
  • the luminous information collection circuit 21 is located in the light pickup part 202, and is used to collect the luminous information of the external flash 10;
  • the color correction processing circuit 22 is electrically connected to the luminous information collection circuit 21, and is used for performing color correction processing according to the luminous information to generate a color correction.
  • the communication circuit 23 is used to communicate with the external flash 10;
  • the communication circuit 23 is electrically connected with the color correction processing circuit 22 to receive the color correction result information, and transmit the color correction result information to the external flash 10, so that the The external flash 10 corrects light emission according to the color correction result information.
  • the luminous information here includes one or more information of luminance, chromaticity, saturation, and the like.
  • all the light emitted by the external flash 10 can be regarded as a whole, and parameters such as brightness, chromaticity, saturation and the like can be collected.
  • 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 luminous information collection circuit 21 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, a luminance sensor, a chromaticity sensor, a color temperature sensor, and the like.
  • the housing is provided with a collection window, the position of the collection window is exactly opposite to the position of the luminous information collection circuit 21 , the collection window is set facing the light-emitting surface of the external flash 10 , so that the color picking circuit can receive the information from the external flash 10 . emitted light.
  • 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 light-emitting information is picked up at least once, and usually the light-emitting information can be picked up multiple times in sequence according to a specific timing sequence.
  • 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 22 may include a data arrangement circuit and a data processing circuit.
  • the data arrangement circuit performs data arrangement on the collected luminous information data.
  • 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 .
  • a color correction processing algorithm may be stored in the data processing circuit, and the color correction processing algorithm performs logical calculation on the above-mentioned arranged luminous data, thereby producing 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 calibration chip, and a calibration coefficient matrix is stored in a program of the calibration chip, and the above-mentioned arranged sample data is calculated and processed based on the calibration coefficient matrix.
  • the driving current of the external flash 10 is corrected by comparing the preset parameter value with the sampled luminescence information arrangement data. Driving the external flash 10 with the corrected driving current can make the actual lighting parameters of the flash exactly match the setting parameters.
  • the color correction processing circuit 22 and the luminous information collection circuit 21 may both be circuits, and both may be arranged on the same circuit board. It can also be set on two circuit boards, and data exchange can be performed through cables.
  • the luminous information collection circuit 21 of the technical solution of the present application can collect the luminous information of the external flash 10; the color correction processing circuit 22 performs color correction processing according to the luminous information to generate color correction result information; the communication circuit 23 is electrically connected to the color correction processing circuit 22 , to receive the color correction result information, and transmit it to the external flash 10 through wireless transmission, so that the external flash 10 can correct and emit light according to the color correction result information. Therefore, the solution of the present application realizes the correction of the light emission of the external flash 10 .
  • the color correction device 20 of the present application integrates the functions of luminous information collection, color correction processing, and communication, and does not need to use other external devices, which improves the convenience of color correction for external flash and improves the color correction efficiency.
  • the communication circuit 23 includes a wireless communication circuit 23, and the wireless communication circuit 23 is electrically connected with the color correction processing circuit 22 to receive the color correction result information and transmit it to the external flash 10 through wireless transmission.
  • the wireless communication circuit 23 can be built into the color calibration device 20, or can be externally placed outside the color calibration device 20, such as an external USB wireless transceiver.
  • the wireless communication circuit 23 may be a Bluetooth module, a WIFI module, a Zig-Bee module, a broadcast module, and the like. It should be understood that a wireless communication module for communicating with the wireless communication circuit 23 should be provided in the external flash 10 .
  • This embodiment improves the convenience of communication between the color calibration device 20 and the external flash 10 , and through the wireless communication circuit 23 , it is possible to avoid setting interfaces on the color calibration device 20 and the external flash 10 . More importantly, the wireless communication circuit 23 can allow the distance between the color correction device 20 and the external flash 10 to be flexibly adjusted, so that different luminous information can be collected based on different distances, thereby improving the accuracy of calibration and calibration. Flexibility of goals.
  • the calibration target can be set as the calibration of the lighting parameters of the external flash 10 under different lighting strokes.
  • the color calibration device 20 further has a communication interface, the communication interface is electrically connected with the color calibration processing circuit 22 , and the communication interface is electrically connected with the external flash 10 through a connecting wire, so as to transmit the color calibration result to the external flash 10 .
  • the communication interface may specifically be one of a USB interface, a TYPE C interface, an RS232 interface, an RS485 interface, and the like.
  • the external flash 10 includes a control chip, a driving circuit and a light source circuit.
  • the control chip sends a control signal to the driving circuit, and the driving circuit then drives the light source circuit to emit light.
  • the color correction processing circuit 22 sends the color correction result information to the control chip or driving circuit of the external flash 10 through the communication circuit 23 to directly correct the light emission of the light source circuit. This embodiment can be used for the debugging process of the correction.
  • FIG. 5 is a block diagram of a circuit structure showing the connection between the color correction device 20 and the external flash 10 according to another exemplary embodiment.
  • the color calibration device 20 further includes a burning circuit 24, and the burning circuit 24 is electrically connected to the color calibration processing circuit 22 and the external flash 10 for burning the color calibration result information output from the communication interface. Recorded in the control chip of the external flash 10.
  • the programming circuit 24 can perform handshake communication with the control chip and satisfy relevant communication protocols to smoothly perform program programming, thereby fundamentally correcting the problem of deviation of the luminous effect of the external flash 10 .
  • the programming circuit 24 and the color correction processing circuit 22 can be electrically connected directly or indirectly, that is, the programming circuit 24 is electrically connected to the color correction processing circuit 22 through the communication circuit 23, or the programming circuit 24 can be directly connected to the color correction processing circuit 22.
  • the circuit 22 is electrically connected.
  • the programming circuit 24 has a dedicated programming interface.
  • the programming circuit 24 can be built into the shell of the color calibration device 20; it can also be externally placed outside the shell of the color calibration device to form a separate module.
  • FIG. 6 is a circuit structure block diagram showing the connection between the color correction device 20 and the external flash 10 according to another exemplary embodiment.
  • the color correction device 20 further has a timing control circuit 25, and the timing control circuit 25 is electrically connected to the luminous information collection circuit 21 and the external flash 10.
  • the timing control circuit 25 is used to control the external flash 10 to pre- Set the timing to emit light, and control the lighting information collection circuit 21 to collect lighting information at a preset timing.
  • the timing control circuit 25 is used to issue timing control instructions, and the timing control instructions may include the execution sequence of the lighting mode of the external flash 10 , the lighting frequency, the brightness change timing, the color change timing, and the like.
  • the timing control circuit 25 also controls the luminous information collection circuit 21 to collect the light emitted by the external flash 10 at a preset timing, so that the collection timing and the lighting timing are synchronized, so that the timing information corresponding to the collected lighting information can be determined. , to improve the accuracy of correction.
  • this embodiment allows the luminescence information collection circuit 21 to not perform data collection when the external flash 10 does not emit light, thereby helping to reduce the noise interference received by the luminescence information collection circuit 21, improving the accuracy of data arrangement; and saving energy. .
  • the color correction device 20 further includes a human-computer interaction component; the human-computer interaction component is disposed on the main body.
  • the human-computer interaction component is electrically connected with the luminous information collection circuit 21 and the color correction processing circuit 22, and the human-computer interaction component is used for receiving one or more of color correction instructions, receiving color correction setting parameters, and switching color correction modes.
  • the human-computer interaction component may be a touch screen component, a key component, a voice input component, etc., for the user to input instructions related to color correction.
  • the luminous information collection circuit 21 starts to collect the luminous information
  • the color correction processing circuit 22 further starts to perform data processing.
  • the received color calibration setting parameters include color calibration accuracy parameters, color calibration target parameters, and the like.
  • the color correction mode may include a brightness correction mode, a chrominance correction mode, a saturation correction mode, and a comprehensive correction mode (simultaneous correction of brightness, chroma, saturation, etc.).
  • the human-computer interaction component includes a plurality of buttons 204 . The user presses the button 204 to issue a color correction instruction, set color correction parameters, switch color correction modes, and other operations.
  • the color correction device 20 further includes a display screen 203, and the display screen 203 is disposed on the main body 201;
  • the color calibration control interface is displayed below.
  • color correction application software may be stored in the color correction device 20 (specifically, in the color correction processing circuit 22 ) in advance, and when the color correction application software is executed, a color correction control interface may be displayed on the display screen 203 .
  • the color correction control interface has a plurality of controls for the user to issue color correction control instructions, and to set color correction parameters, color correction mode selection, and the like.
  • the color calibration control interface may also have a display window to display the color calibration process. This embodiment improves the intelligence of the color correction device 20, improves the human-computer interaction ability, and facilitates the user to correct different parameters of the external flash 10 according to his own needs, and to correct the target parameters that meet his own requirements.
  • circuits such as the luminous information acquisition circuit 21, the color correction processing circuit 22, the communication circuit 23, the programming circuit 24, the timing control circuit 25, the receiving circuit, the display circuit, etc., can all be physical
  • the circuit can be used for construction, and special chips can also be used.
  • the above-mentioned light emission information and color calibration result information only represent the substantial meaning of the signal.
  • the form of the signal will change, such as conversion of analog quantity and digital quantity, sending a single signal or sending it in the form of data packets, etc., which are not specifically limited here.
  • a color correction system for an external flash includes an external flash and the color correction device 20 in the above embodiment; the light emission information collection circuit 21 of the color correction device 20 is used to collect the light emission information of the external flash; the color correction processing circuit 22 of the color correction device 20 is used for Perform color correction processing according to the luminous information to generate color correction result information; the communication circuit 23 of the color correction device 20 communicates with the external flash, so as to send the color correction result information to the external flash 10; information for color correction.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

一种校色设备（20）及外置闪光灯的校色系统。校色设备（20）包括发光信息采集电路（21）、校色处理电路（22）、通讯电路（23）。发光信息采集电路（21）用于采集外置闪光灯的发光信息；校色处理电路（22）与发光信息采集电路（21）电连接，以用于根据发光信息进行校色处理，生成校色结果信息；通讯电路（23），用于与外置闪光灯通讯；通讯电路（23）与校色处理电路（22）电连接，以接收校色结果信息，并将校色结果信息发送至外置闪光灯，以使外置闪光灯根据校色结果信息校正发光。实现了对外置闪光灯的校色。

Description

校色设备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，特别涉及一种校色设备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校色设备，以实现对外置闪光灯的校色。
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，本申请提供一种校色设备，用于对外置闪光灯进行校色；所述校色设备包括：
发光信息采集电路，用于采集所述外置闪光灯的发光信息；
校色处理电路，与所述发光信息采集电路电连接，以用于根据所述发光信息进行校色处理，生成校色结果信息；
通讯电路，用于与所述外置闪光灯通讯；所述通讯电路与所述校色处理电路电连接，以接收所述校色结果信息，并将所述校色结果信息发送至所述外置闪光灯，以使所述外置闪光灯根据所述校色结果信息校正发光。
根据本申请一实施例，所述通讯电路包括无线通讯电路，所述无线通讯 电路与所述校色处理电路电连接，以接收所述校色结果信息，并通过无线传输方式传输至所述外置闪光灯。
根据本申请一实施例，所述通讯电路包括通讯接口，所述通讯接口与所述校色处理电路电连接，所述通讯接口与所述外置闪光灯通过连接线电连接，以向所述外置闪光灯传输所述校色结果信息。
根据本申请一实施例，所述校色设备还包括烧录电路，所述烧录电路与所述校色处理电路以及所述外置闪光灯均电连接，以用于将所述通讯接口输出的校色结果信息烧录至所述外置闪光灯的控制芯片内。
根据本申请一实施例，所述校色设备还具有时序控制电路，所述时序控制电路与发光信息采集电路、以及所述外置闪光灯均电连接，所述时序控制电路用于控制所述外置闪光灯以预设时序进行发光，并控制所述发光信息采集电路相应以预设的时序采集所述发光信息。
根据本申请一实施例，所述发光信息包括所述外置闪光灯所发出光的亮度、色度以及饱和度中的一种或多种。
根据本申请一实施例，所述外置闪光灯包括多颗LED光源；所述发光信息包括所述多颗LED光源中，每一颗LED光源的亮度、色度以及饱和度中的一种或多种。
根据本申请一实施例，所述校色设备包括主体以及凸伸出所述主体一侧的拾光部，所述发光信息采集电路位于所述拾光部内。
根据本申请一实施例，所述主体与所述拾光部可拆卸连接。
根据本申请一实施例，所述校色设备还包括人机交互组件；所述人机交互组件设置在所述主体上；
所述人机交互组件与所述发光信息采集电路、所述校色处理电路均电连接，所述人机交互组件用于接收校色指令、接收校色设定参数、切换校色模式中的一种或多种。
根据本申请一实施例，所述人机交互组件包括按键接收组件、语音输入组件、触控输入组件、手势控制组件中的一种或多种。
根据本申请一实施例，所述校色设备还包括显示屏，所述显示屏设置于所述主体上；
所述显示屏用于显示校色控制界面；所述校色控制界面的显示内容包括 校色启动/关闭信息、校色参数设定信息、校色模式切换信息中的一种或多种。
根据本申请一实施例，所述校色设备为手持式设备。
根据本申请另一方面提出一种外置闪光灯的校色系统，包括外置闪光灯以及所述的校色设备。所述校色设备的发光信息采集电路用于采集所述外置闪光灯的发光信息，所述校色设备的校色处理电路用于根据所述发光信息进行校色处理，生成校色结果信息；所述校色设备的通讯电路与所述外置闪光灯通讯，以将所述校色结果信息发送至所述外置闪光灯，以使所述外置闪光灯根据所述校色结果信息进行校色。
本申请技术方案的发光信息采集电路能够采集所述外置闪光灯的发光信息；校色处理电路根据所述发光信息进行校色处理，生成校色结果信息；所述校色结果信息用于传输至所述外置闪光灯，以校正所述外置闪光灯的发光，本申请方案的校色设备实现了对外置闪光灯的发光校正。
并且，本申请的校色设备集发光信息采集、校色处理、以及通讯等功能为一体，无需再利用其它外部设备，提高了对外置闪光灯校色的便利性以及提高了校色效率。
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。
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校色设备的结构示意图。
图2是图1的侧视图。
图3是根据一示例实施方式示出的一种校色设备的电路结构框图。
图4是根据一示例性实施方式示出的一种校色设备与外置闪光灯连接的电路结构框图。
图5是根据另一示例性实施方式示出的校色设备与外置闪光灯连接的电路结构框图。
图6是根据另一示例性实施方式示出的校色设备与外置闪光灯连接的电路结构框图。
附图标记说明如下：10、外置闪光灯；20、校色设备；201、主体；202、拾光部；203、显示屏；204、按键；205、开关键；21、发光信息采集电路；22、校色处理电路；23、通讯电路；24、烧录电路；25、时序控制电路。
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校色设备，校色设备用于对外置闪光灯进行校色，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和图2，在一实施例中，校色设备20包括主体201以及凸伸出主体201一侧的拾光部202。具体的，主体201大致呈方形，主体201内具有容置腔，以容纳一块或多块电路板，应当理解，本申请的相关电路可以部分或全部铺设于该电路板上。主体201的侧面还设有开关键205，当开关键205处于打开状态时，校色设备20启动，当开关键205处于关闭状态时，校色设备20关机。拾光部202位于主体的上侧。由于外置闪光灯10的光线辐射范围大致呈圆形，因此本申请设置拾光部202也大致呈圆形，以均匀拾取外置闪光灯10发出的光线。本申请的校色设备20可以是手持式设备，以便利用户外出携带，以随时对外置闪光灯进行校色。
其中，主体201与拾光部202可以是可拆卸连接。具体可以是卡扣连接或在主体201上设置滑槽，在拾光部202上设置滑块，通过滑槽和滑块配合的方式连接。
请参阅图3和图4。在一实施例中，校色设备20包括发光信息采集电路21，校色处理电路22、通讯电路23。发光信息采集电路21位于拾光部202内，用于采集外置闪光灯10的发光信息；校色处理电路22与发光信息采集电路21电连接，以用于根据发光信息进行校色处理，生成校色结果信息；通讯电路23，用于与外置闪光灯10通讯；通讯电路23与校色处理电路22电连接，以接收校色结果信息，并将校色结果信息传输至外置闪光灯10，以使外置闪光灯10根据校色结果信息校正发光。
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所发出的全部光线视为整体，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。
发光信息采集电路21可以包括拾色电路、数据转换电路、滤波电路等。示意性的，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。
壳体上开设有采集窗口，采集窗口的位置与发光信息采集电路21的位置 正对，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，通常可以根据特定时序依次拾取多次发光信息。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22可以包括数据排列电路和数据处理电路。数据排列电路对所采集到的发光信息数据进行数据排列。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。
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。
在一示例中，数据处理电路包括校正芯片，校正芯片的程序中存储有校正系数矩阵，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。
在另一示例中，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。
在此，校色处理电路22与发光信息采集电路21可以均是电路，两者可以排布在同一块电路板上。也可以分设在两个电路板上，通过排线进行数据交互。
本申请技术方案的发光信息采集电路21能够采集外置闪光灯10的发光信息；校色处理电路22根据发光信息进行校色处理，生成校色结果信息；通讯电路23与校色处理电路22电连接，以接收校色结果信息，并通过无线传输方式传输至外置闪光灯10，以使外置闪光灯10根据校色结果信息校正发光。由此，本申请方案实现了对外置闪光灯10发光的校正。
并且，本申请的校色设备20集发光信息采集、校色处理、以及通讯等功能为一体，无需再利用其它外部设备，提高了对外置闪光灯校色的便利性以及提高了校色效率。
在一实施例中，通讯电路23包括无线通讯电路23，无线通讯电路23与校色处理电路22电连接，以接收校色结果信息，并通过无线传输方式传输至外置闪光灯10。
在此无线通讯电路23可以是内置于校色设备20内，也可以外置于校色设备20外，例如外置的USB无线收发器。无线通讯电路23可以是蓝牙模块、WIFI模块、Zig-Bee模块、广播模块等。应当理解，在外置闪光灯10内应设置与无线通讯电路23进行通讯连接的无线通讯模块。
该实施例提高了校色设备20与外置闪光灯10通讯的便利性，通过无线通讯电路23，能够免于在校色设备20以及外置闪光灯10上设置接口。更重要的是，无线通讯电路23可以允许校色设备20与外置闪光灯10之间的距离能够灵活的调节，从而可以基于不同的距离，采集到不同的发光信息，提高校正的准确性以及校正目标的灵活性。此处，校正目标可以设定为对外置闪光灯10在不同发光行程下发光参数的校正。
在另一实施例中，校色设备20还具有通讯接口，通讯接口与校色处理电路22电连接，通讯接口与外置闪光灯10通过连接线电连接，以向外置闪光灯10传输校色结果信息。在此，通讯接口具体可以为USB接口、TYPE C接口、RS232接口、RS485接口等其中的一种。在此，通讯接口可以有一个或多个。
外置闪光灯10内包括有控制芯片、驱动电路以及光源电路。控制芯片发出控制信号至驱动电路，驱动电路进而驱动光源电路发光。在一实施例中，校色处理电路22通过通讯电路23将校色结果信息发送给外置闪光灯10的控制芯片或驱动电路，以直接校正光源电路的发光。该实施例可以用于校正的调试过程。
请参阅图5，图5是根据另一示例性实施方式示出的校色设备20与外置闪光灯10连接的电路结构框图。在另一实施例中，校色设备20还包括烧录电路24，烧录电路24与校色处理电路22以及外置闪光灯10均电连接，以用于将通讯接口输出的校色结果信息烧录至外置闪光灯10的控制芯片内。在该实施例中，烧录电路24能够与控制芯片进行握手通讯，并满足相关通讯协议，以顺利进行程序烧写，从而从根本上校正了外置闪光灯10的发光效果偏差问题。
在此烧录电路24与校色处理电路22可以直接电连接或间接电连接，即烧录电路24通过通讯电路23与校色处理电路22电连接，也可以烧录电路24直接于校色处理电路22电连接。烧录电路24具有专用的烧录接口。烧录电路24可以内置于校色设备20的壳体内；也可以外置于校色设备的壳体外，而形成一单独的模块。
图6是根据另一示例性实施方式示出的校色设备20与外置闪光灯10连接的电路结构框图。在一实施例中，校色设备20还具有时序控制电路25，时序控制电路25与发光信息采集电路21、以及外置闪光灯10均电连接，时序控制电路25用于控制外置闪光灯10以预设时序进行发光，并控制发光信息采集电路21以预设的时序采集发光信息。
在此，时序控制电路25用于发出时序控制指令，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、色彩变化时序等。时序控制电路25也以预设的时序控制发光信息采集电路21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，该实施例允许发光信息采集电路21在外置闪光灯10不发光时，不进行数据采集，从而有利于降低发光信息采集电路21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，校色设备20还包括人机交互组件；所述人机交互组件设置在所述主体上。人机交互组件与发光信息采集电路21、校色处理电路22均电连接，人机交互组件用于接收校色指令、接收校色设定参数、切换校色模式中的一种或多种。
在一示例中，人机交互组件可以是触控屏组件、按键组件、语音输入组件等，用于供用户输入校色相关指令。当用户发送校色指令时，发光信息采集电路21开始采集发光信息，校色处理电路22进而开始进行数据处理。接收校色设定参数包括有校色精度参数、校色目标参数等。校色模式可以包括有亮度校正模式、色度校正模式、饱和度校正模式以及综合校正模式(同时对亮度、色度、饱和度等同时校正)。在一具体的实施例中，人机交互组件包括多个按键204。用户通过按压按键204，以发出校色指令、以及设定校色参数、切换校色模式等操作。
在一实施例中，校色设备20还包括显示屏203，所述显示屏203设置于所述主体201上；显示屏203与校色处理电路22电连接，以在校色处理电路22的控制下显示校色控制界面。在此，可以预先在校色设备20内(具体可以是校色处理电路22内)存储校色应用软件，当运行校色应用软件时，可以在显示屏203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控制指令，以及设定校色参数、校色模式选择等。该校色控制界面还可以具有显示窗口，以显示校色进程。该实施例提高了校色设备20的智能化，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。
在上述实施例中所提到的“电路”，例如发光信息采集电路21、校色处理电路22、通讯电路23、烧录电路24、时序控制电路25、接收电路、显示电路等均可以采用实体电路来进行搭建，也可以采用专用芯片。
并且，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，信号会发生形式的改变，例如模拟量和数字量的变换、将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。
在本申请另一方面还提出一种外置闪光灯的校色系统。校色系统包括外置闪光灯以及上述实施例中的校色设备20；校色设备20的发光信息采集电路21用于采集外置闪光灯的发光信息；校色设备20的校色处理电路22用于根据发光信息进行校色处理，生成校色结果信息；校色设备20的通讯电路23与外置闪光灯通讯，以将校色结果信息发送至外置闪光灯10；以使外置闪光灯10根据校色结果信息进行校色。
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 (14)

  1. 一种校色设备，用于对外置闪光灯进行校色；其特征在于，所述校色设备包括：
    发光信息采集电路，用于采集所述外置闪光灯的发光信息；
    校色处理电路，与所述发光信息采集电路电连接，以用于根据所述发光信息进行校色处理，生成校色结果信息；
    通讯电路，用于与所述外置闪光灯通讯；所述通讯电路与所述校色处理电路电连接，以接收所述校色结果信息，并将所述校色结果信息发送至所述外置闪光灯，以使所述外置闪光灯根据所述校色结果信息校正发光。
  2. 根据权利要求1所述的校色设备，其特征在于，所述通讯电路包括无线通讯电路，所述无线通讯电路与所述校色处理电路电连接，以接收所述校色结果信息，并通过无线传输方式传输至所述外置闪光灯。
  3. 根据权利要求1所述的校色设备，其特征在于，所述通讯电路包括通讯接口，所述通讯接口与所述校色处理电路电连接，所述通讯接口与所述外置闪光灯通过连接线电连接，以向所述外置闪光灯传输所述校色结果信息。
  4. 根据权利要求3所述的校色设备，其特征在于，所述校色设备还包括烧录电路，所述烧录电路与所述校色处理电路以及所述外置闪光灯均电连接，以用于将所述通讯接口输出的校色结果信息烧录至所述外置闪光灯的控制芯片内。
  5. 根据权利要求1所述的校色设备，其特征在于，所述校色设备还具有时序控制电路，所述时序控制电路与所述发光信息采集电路、以及所述外置闪光灯均电连接；所述时序控制电路用于控制所述外置闪光灯以预设时序进行发光，并控制所述发光信息采集电路相应以预设的时序采集所述发光信息。
  6. 根据权利要求1所述的校色设备，其特征在于，所述发光信息包括所述外置闪光灯所发出光的亮度、色度以及饱和度中的一种或多种。
  7. 根据权利要求1所述的校色设备，其特征在于，所述外置闪光灯包括多颗LED光源；所述发光信息包括所述多颗LED光源中，每一颗LED光源的亮度、色度以及饱和度中的一种或多种。
  8. 根据权利要求1所述的校色设备，其特征在于，所述校色设备包括主体以及凸伸出所述主体一侧的拾光部，所述发光信息采集电路位于所述拾光 部内。
  9. 根据权利要求8所述的校色设备，其特征在于，所述主体与所述拾光部可拆卸连接。
  10. 根据权利要求8所述的校色设备，其特征在于，所述校色设备还包括人机交互组件；所述人机交互组件设置在所述主体上；
    所述人机交互组件与所述发光信息采集电路、所述校色处理电路均电连接，所述人机交互组件用于接收校色指令、接收校色设定参数、切换校色模式中的一种或多种。
  11. 根据权利要求10所述的校色设备，其特征在于，所述人机交互组件包括按键接收组件、语音输入组件、触控输入组件、手势控制组件中的一种或多种。
  12. 根据权利要求8所述的校色设备，其特征在于，所述校色设备还包括显示屏，所述显示屏设置于所述主体上；
    所述显示屏用于显示校色控制界面；所述校色控制界面的显示内容包括校色启动/关闭信息、校色参数设定信息、校色模式切换信息中的一种或多种。
  13. 根据权利要求1所述的校色设备，其特征在于，所述校色设备为手持式设备。
  14. 一种外置闪光灯的校色系统，其特征在于，包括外置闪光灯以及如权利要求1至13任意一项所述的校色设备；所述校色设备的发光信息采集电路用于采集所述外置闪光灯的发光信息；所述校色设备的校色处理电路用于根据所述发光信息进行校色处理，生成校色结果信息；所述校色设备的通讯电路与所述外置闪光灯通讯，以将所述校色结果信息发送至所述外置闪光灯；以使所述外置闪光灯根据所述校色结果信息进行校色。
PCT/CN2021/101594 2021-01-22 2021-06-22 校色设备及外置闪光灯的校色系统 WO2022156146A1 (zh)

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