CN106817818A - There is control method and image system in light - Google Patents
There is control method and image system in light Download PDFInfo
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- CN106817818A CN106817818A CN201510859406.XA CN201510859406A CN106817818A CN 106817818 A CN106817818 A CN 106817818A CN 201510859406 A CN201510859406 A CN 201510859406A CN 106817818 A CN106817818 A CN 106817818A
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- 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
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Abstract
There is control method the invention discloses a kind of light, for the light generator in image system, including：Receive the photochroic features information of first area；Configuration parameter is generated according to the photochroic features information；Light is exported according to the configuration parameter.In the present invention, target shooting area is detected due to being multiplexed the sensor existed in image system, and the output of the light of light generator is controlled according to testing result, so that the light of light generator can preferably for target shooting area provides suitable light environment, and simple structure, cost is relatively low.The invention also discloses a kind of image system.
Description
Technical field
There is control method the present invention relates to image technology field, more particularly to a kind of image system and light.
Background technology
For image documentation equipment, generally require and worked under certain light environment, different light environment is larger to the work influence of image documentation equipment, it is possible to directly concern the quality of content.For example, very low in light intensity, photochromic quality is excessively poor, in the case that colour rendering is very low.This requires that the luminaire coordinated with image documentation equipment can produce appropriate output light according to the ambient light of target area, but the luminous of luminaire cannot often be associated with the ambient light of target area in the prior art, it is poor with the matching of target area that this results in the light that it sends.
The content of the invention
The technical problems to be solved by the invention are that the ambient light condition of the light and target area that luminaire is sent preferably is matched.
In order to solve the above-mentioned technical problem, the present invention proposes that a kind of light occurs control method, for the light generator in image system, including：
Receive the photochroic features information of first area；
Configuration parameter is generated according to the photochroic features information；
Light is exported according to the configuration parameter.
Wherein, it is described to be included according to photochroic features information generation configuration parameter：
Photochroic features information according to the first area obtains brightness and the color coordinate information at least part of region in the first area；Or, the photochroic features information according to the first area obtains the photochromic information of the extension at least part of region in the first area, such as illumination, colour temperature, spectrum etc.；
Brightness and color coordinate information according to screening-mode set in advance and at least part of region, or the photochromic information of the extension according to screening-mode set in advance and at least part of region, obtain being needed under the screening-mode set in advance the Photochromic Properties data of output；
The characteristic parameter of the light source in the Photochromic Properties data and light generator obtains the configuration parameter.
Wherein, the photochroic features information source in：Existing sensor collection initial data in the image system, the initial data obtains the photochroic features information by Treatment Analysis.
The present invention also proposes that another light occurs control method, for the light generator in image system, including：
Receive the initial data or intermediate data of the photochroic features of the first area of sensor collection；
Initial data described in Treatment Analysis or intermediate data obtain photochroic features information；Configuration parameter is generated according to the photochroic features information；
Light is exported according to the configuration parameter.
Wherein, it is described to be included according to photochroic features information generation configuration parameter：
Photochroic features information according to the first area obtains brightness and the color coordinate information at least part of region in the first area；
Brightness and color coordinate information according to screening-mode set in advance and at least part of region obtain being needed under the screening-mode set in advance the Photochromic Properties data of output；
The characteristic parameter of the light source in the Photochromic Properties data and light generator obtains the configuration parameter.
Wherein, the sensor is existing sensor in image system.
The present invention also proposes a kind of image system, including image documentation equipment and light generator, and the image documentation equipment includes opticator, sensor, processor and communication interface；Wherein, the sensor is used to gather the initial data of first area photochroic features, and the processor obtains photochroic features information for initial data described in Treatment Analysis；
The light generator includes light source, light source driving circuit, controller and communication interface；
Wherein, the communication interface of the image documentation equipment is connected with the communication interface of light generator, and the photochroic features information is exported with to the light generator, and the controller controls the light source luminescent according to the photochroic features information by the light source driving circuit；Also, the sensor is existing sensor in the image system.
Wherein, the light source includes at least three kinds luminescent devices of color, and the light of the light source output is the mixed light of light that sends of luminescent device of at least three kinds of colors.
The present invention also proposes another image system, including image documentation equipment and light generator, and the image documentation equipment includes opticator, sensor, processor and communication interface；Wherein, the sensor is used to gather the initial data of first area photochroic features；
The light generator includes light source, light source driving circuit, controller and communication interface；
Wherein, the communication interface of the image documentation equipment is connected with the communication interface of light generator, the initial data or intermediate data are exported with to the light generator, initial data or intermediate data described in the controller Treatment Analysis obtain photochroic features information, and control the light source luminescent by the light source driving circuit according to the photochroic features information；Also, the sensor is existing sensor in the image system.
Wherein, the light source includes at least three kinds luminescent devices of color, and the light of the light source output is the mixed light of light that sends of luminescent device of at least three kinds of colors.
In the present invention, target shooting area is detected due to being multiplexed the sensor existed in image system, and the output of the light of light generator is controlled according to testing result.So that the output light of light generator can preferably adapt to the environment of target shooting area, and simple structure, cost is relatively low.
The present invention is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of light generator of the present invention；
Fig. 2 is the decomposing schematic representation of embodiment illustrated in fig. 1；
Fig. 3 is the schematic diagram of one embodiment of image system of the present invention；
Fig. 4 is the spectrogram of one embodiment of gas-discharge tube light source；
Fig. 5 is the spectrogram of one embodiment of white LED light source；
Fig. 6 is the spectrogram of one embodiment of three-color LED light source；
Fig. 7 is the CIE chromaticity diagram of embodiment illustrated in fig. 6；
Fig. 8 is the CIE chromaticity diagram of one embodiment of four color LED light sources；
Fig. 9 is the CIE chromaticity diagram of one embodiment of multi-color LED light source；
Figure 10 is the spectrogram in the covering visible light region of one embodiment of different characteristic spectrum LED light source；
Figure 11 is the mixed spectra schematic diagram of one embodiment of multi-color LED light source；
Figure 12 is a kind of schematic diagram of one embodiment of image system of the invention；
Figure 13 is a kind of schematic diagram of one embodiment of image system of the invention；
Figure 14 is the structural representation of light generator in embodiment illustrated in fig. 13；
Figure 15 is the structural representation of another angle of light generator in embodiment illustrated in fig. 13；
Figure 16 is the schematic diagram of another embodiment of image system of the present invention；
Figure 17 is the rear view of embodiment illustrated in fig. 16；
Figure 18 is the schematic diagram of another embodiment of image system of the present invention；
Figure 19 is the schematic diagram of another embodiment of image system of the present invention；
Figure 20 is the schematic diagram of the one embodiment divided to target shooting area；
Figure 21 is the schematic diagram of one embodiment of target shooting area in sensor maps Figure 20；
Figure 22 is the schematic diagram of another embodiment of target shooting area；
Figure 23 is the schematic diagram of one embodiment that regional choice is carried out to target shooting area.
Specific embodiment
In order that the purpose of the present invention, technical scheme and advantage description is apparent, it is illustrated below in conjunction with specific example, and the present invention will be described in detail referring to the drawings.
With reference to Fig. 1 and Fig. 2, it illustrates one embodiment of light generator in the present invention, wherein Fig. 1 is the schematic diagram after overall assembling, and Fig. 2 is perspective exploded view.
As illustrated, light generator includes lens 1, light source board 2, reflex reflector 3, power panel and control panel 4, shell 5, interactive interface 6 and display screen 61.Wherein, power panel and control panel 4 are placed in the shell 5, and one end of the shell 5 is connected with the reflex reflector 3, and the other end sets the interactive interface 6 and display screen 61.The reflex reflector 3 is connected with lens 1 and forms a cavity, and the light source board 2 is arranged in the cavity.
At least three kinds luminescent devices of color are provided with the light source board 2, the light that the luminescent device of at least three kinds of colors is launched mixes, and mixed light is the output light of the light source.In the present embodiment, the light source board is pcb board, and the luminescent device is LED (Light Emitting Diode, light emitting diode), naturally it is also possible to be the light source device of other forms, such as gas-discharge tube, OLED, laser, etc..
Power circuit is provided with the power panel, with voltage/current needed for the various pieces that can be converted to the light generator of realizing powering power supply etc., is powered to whole equipment.
Control circuit is provided with the control panel, the control circuit is used for and external image equipment communication, and control of the realization to the light generator.Being expanded on further for the control circuit, may be referred to the related embodiments of Fig. 3.
The reflex reflector 3 is in the present embodiment reflection shield, and its shape is conventional parabolic type, and it can also take other form certainly, such as round platform reflector etc..
The lens 1 can be scatter-type, the light concentrating components of such as scatter plate, or focus version, or can also be light dispersion member, might also be to produce lens of directional light etc..Specifically, the lens can be Fresnel Lenses or various meniscuses etc..
The interactive interface 6 includes some buttons, and some buttons are electrically connected with the control panel, to realize user input.The display screen 61 as interactive interface 6 a part, it is used for realizing user oriented output display, and it can be using the display means of the form such as LCD, LED, OLED, charactron, Electronic Paper.
The power panel and control panel 4 are contained in shell 5, the wherein outer wall of reflection unit 3 together constitutes the housing of light generator with shell 5.And the light source board 2 also is located in the housing.
In the present embodiment, power supply can also be included, such as integrated power supply of external power supply and light generator one etc., concrete form can be in the form of battery, or other energy storage component forms, such as electric capacity.Certainly, civil power can also be used as power supply, and only now civil power can not be considered the part of the present embodiment.Power supply realizes the power supply to whole light generator, including the power supply to light source, and to controlling the power supply etc. of circuit.
Also include mechanical interface not shown in figure, the mechanical interface is used to be attached to realize the support to light generator with external equipment.The external equipment can be image documentation equipment, or can also be special support etc..
Also include heat abstractor not shown in figure.Because light source can produce substantial amounts of heat in the course of the work, in order to ensure performance, reliability and the life-span of light source, it is necessary to the heat of generation is timely distributed.From for implementing, the heat abstractor can use primary heat-removal modalities, for example, directly radiated by PCB light source plate；Can also be using the heat-removal modalities of annex radiator, such as with the heat abstractor of the closely coupled Qi chips radiator of light source board where light source.Can be aluminium radiating device, heat-conducting plastic etc. for specific heat sink material.
With reference to Fig. 3, it is illustrated that the schematic diagram of one embodiment of image system of the present invention.As illustrated, the image system includes light generator 30 and image documentation equipment 40, light generator 30 and image documentation equipment 40 are split setting in the present embodiment.The elaboration of the light generator 30 may be referred to the relevant portion of the embodiment shown in Fig. 1 and Fig. 2, and light generator 30 and image documentation equipment 40 are described in detail below.
The image documentation equipment 40 includes camera lens, sensor, processor, memory, communication interface, device power supply (DPS), display interface and mechanical structure.In one embodiment of the invention, image documentation equipment 40 can be digital camera, the mobile phone with shoot function or flat board etc..Wherein, the camera lens is optics, its opticator that image documentation equipment 40 is at least constituted as one of composition；Sensor is used to gather the initial data of first area photochroic features；Wherein, the initial data includes that the light in first area enters into the luminous intensity reached in every sub- light-metering element (every sub- light-metering element correspondence receives the light of different wave length) after photometry sensor.Certainly, these initial data can turn into intermediate data by certain conversion change.In one embodiment of the invention, the processor is used for the initial data or intermediate data of sensor collection described in Treatment Analysis to obtain photochroic features information.The memory is used to store the image data and various intermediate data of image documentation equipment collection, and the device power supply (DPS) can be specifically that battery is powered with to image documentation equipment；The display interface can specifically be carried by display screen, for showing various acquisition parameters；The mechanical mechanism includes housing and various mechanical interfaces etc. as the mechanical part of image documentation equipment.The communication interface is used to be communicated with external equipment, and it can use existing various wired or wireless communication modes, not enumerate specifically herein.
Wherein, in one embodiment of the invention; the sensor is the imageing sensor with certain resolution; such as cmos sensor, ccd sensor or illuminance device array etc., the photoelectric device that can be detected to exterior light and be made respective response in a word are all within the scope of the present invention.
Specifically, in one embodiment of the invention, sensor internal is the basic light-metering element being made up of many small pixels, there be several daughter elements each basic light-metering element inside, general quantity is three kinds or four kinds, or it is more kinds of, the photo sensitive area of different wave length is corresponded to respectively.The intensity of the color corresponding to each daughter element therein can be perceived so as to each basic light-metering element, it is final to can determine that in the corresponding region of each basic light-metering element, how many which kind of color component understands, so as to obtain the initial data of the photochroic features in the region corresponding to the basic light-metering element.Therefore, it is extrapolated to for whole sensor chip, include a number of basic light-metering element (particular number is different and different according to resolution ratio) above, the set of the initial data of the photochroic features that all basic light-metering Element detections are arrived is exactly the initial data of the overall photochroic features of correspondence first area.
For example, for first area as shown in figure 20, it includes a, b, c, d, e, f, g, h, i, j, k, l totally 12 sub-regions.This 12 sub-regions can be mapped to the corresponding region on sensor chip, as shown in figure 21.In figure 21, corresponding to first area in 12 sub-regions, 12 basic light-metering elements are also correspondingly provided with sensor chip.Wherein, each basic light-metering element includes 3 daughter elements, and each daughter element used is made up of 3 kinds of colors in the present embodiment, corresponds to respectively in spectrum red (R), green (G) and blue (B) part.So, in every sub-regions, such as a regions, on a sensor, to that should have 3 groups of RGB sense signals elements, totally 9 RGB sub-pixels, and processor by certain weighting algorithm (because RGB daughter elements are to the red of the spectrum of visible region, green, there is certain corresponding relation blue part, such as after being multiplied by certain coefficient to the intensity that R senses), can be obtained by the intensity of RED sector in the spectrum of the corresponding region or point, by that analogy, green, the intensity of blue portion are obtained.In addition, for visible spectrum, it is exactly its chromaticity coordinates point x on chromatic diagram CIE to describe its photochromic important parameter, y (notes, chromaticity coordinates point is calculated by spectrum and got, after known spectra, spectroscopic data is multiplied by tristimulus values function, tristimulus values X is obtained by calculating, Y and Z, again by X, Y and Z can just calculate chromaticity coordinates point x and y, it is rudimentary knowledge for the people in this field), and obtain the tristimulus values X of the spectrum, after Y and Z, and known relevant R, after the component intensity numerical value of G and B, transformational relation can be set up according to transition matrix.Shown in concrete form below figure formula, wherein the numerical value of transition matrix relies on the characteristic and sensor characteristics of light source used and determines.So, for using for identical combination of light sources, it is known that transformation matrix coefficients, after no matter the R, G and B in combination of light sources mixed using different coefficients, the X of mixed light can be calculated, Y and Z values, and then chromaticity coordinates xy and brightness value can also be obtained.After obtaining these parameters, it is possible to further obtain other photochroic features information), also it is known that in subregion a the photochroic features information such as the dominant hue and its saturation degree in the photochromic intensity of red, green, blue and whole a regions.
It should be noted that, in general original R, G and B numerical value (intensity) can and real R, G and B intensity have certain deviation, therefore generally requires and obtain a coefficient by advance experiment, R is corresponded to respectively, G, part B, it is original be multiplied by this coefficient after, just obtain real R, G and B intensity.Then also need to know the numerical value in transition matrix, this process is also to complete in an experiment in advance, can be taken in experiment and know X, the light source of Y and Z tristimulus values, and known R, G and B actual strength, the transition matrix that top formula needs then is obtained after the two matrix operation.After knowing this transition matrix, the exporting change of follow-up light source, only it is to be understood that after R, G and B numerical value, it is possible to which new X, Y and Z tristimulus data are obtained by the calculating of top.
In an embodiment of the invention, the photochroic features information at least include it is following in one kind：Corresponding relation of brightness, illumination, colour temperature, chromaticity coordinates, colour rendering index, color proportioning, dominant wavelength, the luminous intensity under different wave length, lighting angle, spectrum, light source and receiving area etc..Certainly, photochroic features information can also be the information for being converted to above-mentioned various information, the drive control parameter information to light source for example by being obtained after conversion, this completes almost all for the treatment of equivalent to by image documentation equipment, the drive control parameter information to light source is finally obtained, the drive control parameter information is sent to light generator again finally and is driven light source luminescent.
By that analogy, the photochroic features information of other subregions can be obtained, so for first area, the information such as photochroic features of each part and overall region can be obtained by.Simultaneously, the picture or data message that sensor is obtained are included on display interface, user just can be according to the location of reference object of oneself, the photochroic features in the local corresponding region of reference object, to select the output characteristic of light generator, that is, the photochromic pattern of output that user needs, output characteristic can have various forms, such as strengthen it is some region of it is photochromic, weaken some region of photochromic mode, or change some region of photochromic etc..And the form that the output characteristic then carrys out configuration driven parameter eventually through different modes acts on light generator.(in one embodiment of the invention, output characteristic is that the target lamp wanted of user is just carried out according to the direction strengthened, or the direction weakened, or the mode of sum is carried out in color, for this is primarily directed to light characteristic, for example：Such as current environment light is very dark, color is partially red, that user selects different output characteristic patterns, processor is that light driver configures different driving parameters, such as, according to the direction strengthened, be exactly that the parameter of processor configuration can allow the luminous flux that light is exported higher, color is redder, and if weakening direction, then can allow red lighter by adding additional color, and neutralization mode can then select red to make up color blueness to export.Specifically, it is exactly that after known current luminous environment, after user selects certain output characteristic pattern, processor is known that toward that direction to be lighting fixture configuration driven parameter and output)
It should be noted that the sensor is existing sensor in image documentation equipment, it is not set for the light emitting control of light generator.That is, the data of the sensor collection of the light emitting control institute foundation of light generator are the functions of being multiplexed the sensor in the present invention, structure and reduces cost so can be just simplified.
Used as one more specifically embodiment of the present invention, Figure 22 shows an image for full and accurate shooting area.By target shooting area is divided into for the embodiment of 12 sub-regions above, the image is also divided into 12 sub-regions in Figure 22,12 basic light-metering elements is corresponded to respectively, and then the photochroic features information of every sub-regions can be obtained.Obtain these information, the feature that user can select reference object in one or more subregions is analyzed as the photochroic features of selected areas, which type of then determine to need the reference object again using light, then the output of light generator want it is photochromic reached with this to the more lively of reference object, the shooting of vivid and intention.
Certainly, selected areas can arbitrarily be chosen according to the need for user, be not necessarily according to the subregion of rectangle in foregoing embodiments to select, it is also possible to select in whole region it is arbitrary a bit, an or arbitrary other shapes of region.As shown in figure 23, a point A can be selected as analysis object, it is also possible to select irregular region B to be used as analyzing object and be identified and analyzed to photochromic in region, then provide the photochroic features information in user's selection area.The light configuration parameter for recommending is given according to the photochroic features information, finally when user shoots to target shooting area, light generator will carry out photochromic output according to the light configuration parameter, allow user to have more professional and intelligentized light environment in shooting process.
The light generator 30 includes optical control device 311, light source 312, heat abstractor 313, power circuit 314, light source driving circuit 315, light data memory 316, communication interface 317, controller 318, sensor interface 319, display screen with control interactive interface 320, open circuit and switch 321, control signal interface, mechanical interface 323.
Wherein, optical control device 311 can include lens and/or reflection unit, and the reflection unit can also be dodging device or sheen device (such as soft box).Certainly, optical control device 311 is not necessary, and it can be installed on the light generator 31 by dismountable mode.
In the present embodiment, light source 312 includes LED 1, LED 2, LED 3 to LED several LED of n, for example, can be 3, i.e. LED 1, LED 2 and LED 3, or 4, i.e. LED 1, LED 2, LED 3 and LED 4.Also, the light source can produce the various mixed lights for being lighted in various proportions by LED used and being produced.For only a kind of gas-discharge tube of color, or only a kind of white light LEDs of color, the spectrum of gas-discharge tube and white light LEDs single (in Fig. 4 and Fig. 5 it can be seen that) and adjustment is difficult.And (be illustrated by taking 3 kinds and 4 kinds as an example below) as a result of at least three kinds LED light sources of color in the present embodiment, its luminous scope and color adjusting range all become much larger, and can flexibly allow image documentation equipment to be worked under different light environments.
For example, LED 1, LED 2 and LED 3 are included for light source 312, and the color of light that each LED is sent is different.In this case, the LED of each color has its specific spectrum, as shown in Figure 6, and then its spectrum can calculate its corresponding color dot (i.e. chromaticity coordinates x by conversion, y), CIE (Commission Internationale de L ' Eclairage (French) of this color dot correspondence in standard, International Commission on Illumination) a chromaticity coordinates point on chromatic diagram, chromaticity coordinates point corresponding to the LED of such three kinds of different colours may be constructed a triangle on CIE chromaticity diagram, as shown in Figure 7, the luminous energy of every kind of LED is controlled by the light source driving circuit 315 with multiple-channel output, and then any color within triangle can be blended, any point that its chromaticity coordinates can fall within triangle.Such as, three LED difference corresponding As, tri- points of B, C, wherein A is the chromaticity coordinates point of spectrum 4, B is the chromaticity coordinates point of spectrum 5, C is the chromaticity coordinates point of spectrum 6, for point X wherein in the triangle being made up of the line between A, B, C, its color can by control three luminous energies of LED come blend come.And the bulk strength or luminous flux of LED light source 312 can be changed by increasing or decreasing the quantity of the LED of each color, the luminous intensity or luminous flux of whole LED light source 312 finally can also be changed by the luminous intensity or luminous flux that change each road power output of light source driving circuit 315 within the specific limits to change every paths of LEDs.
Again for example, including LED 1, LED 2, LED 3 and LED 4 for light source 312, and the color of light that each LED is sent is different.In this case, the LED of these four color types respectively falls in the diverse location of CIE chromaticity diagram, it constitutes a quadrangle for having certain area, by after 315 pairs of controls distinguished per road of light source driving circuit, any color dot in whole profile all or part of can realize, so be possible to the spectrum by changing the driving parameter of each paths of LEDs to change mixed light by the spectrum of the mixed light sources of LED of multiple color.Fig. 8 is the quadrangle that four kinds of LED (corresponding A 1, B1, C1 and D1 respectively) are constituted, and wherein X1 points can be by the four kinds of LED of color being mixed to get by different proportion, and then light source 312 can send light of the chromaticity coordinates in X1 positions.
By that analogy, the polygon that Fig. 9 is constituted for the LED (corresponding A n1, Bn1, Cn1, Dn1 ... Xn1 respectively) of multiple color, wherein Xm points can by various LED being mixed to get by different proportion, and then light source 312 can send light of the chromaticity coordinates in Xm positions.So, the light emitting region of LED light source 312 and color adjusting range all will greatly become big, can flexibly allow image documentation equipment to be worked under different light environments.
In LED light source 312, in order that the brightness degree of light generator or luminous flux grade can reach certain level, the quantity of the LED of each color can flexibly change, and target call can be reached by using many, or a number of used LED is determined according to certain ratio.
It is appreciated that after each LED in light source 312 provides different electrical parameters, such as electric current, after voltage, frequency, amplitude etc. parameter, after the LED of different colours is luminous, after in reflex reflector or lens, whole LED light source 312 will send a kind of specific mixed light, it has its specific optical parameter, such as spectrum, luminous flux, brightness, colour temperature, color, colour rendering index, etc..
In addition, in order to the spectrum of mixed light being capable of more continuous and saturation, and also to the adjustability of spectrum is more flexible, can be adjusted by increasing the color category of the LED that use, continuous and adjustable in order to allow mixed light all to compare in the range of visible ray 380-780nm, in one embodiment of the present of invention, light generator can be combined using multiple color LED, as shown in Figure 10, the LED with different characteristic color and spectrum can be with the whole region of covering visible light.By mixing that these LED combinations, light together after, can obtain it is very continuous and different wave length position can flexible modulation mixed spectra, as shown in figure 11.
Heat abstractor 313 may be referred to the associated description in Fig. 1 and Fig. 2 embodiments, be not repeated herein.
Power circuit 314 is connected with light source driving circuit 315, and under the control of controller 318, is powered to light source driving circuit 315.And light source driving circuit 315 is also connected with controller 318, with the luminance of each LED in driving light source 312 under the control parameter that controller 318 is provided, to realize the demand for control of control parameter.
Light data memory 316 is used to receive customized light data, such as spectrum, colour temperature, color, colour rendering etc..The light data memory 316 is connected with controller 318, so controller 318 can read light data from light data memory 316 and resolve to the control parameter that light source driving circuit 315 can be performed, and such light source driving circuit 315 just can accordingly control the luminous of light source 312.Wherein, the customized light data can be directly inputted by user, input is for example realized by the interactive interface in Fig. 1 and Fig. 2 embodiments, it is also possible to obtained from the image documentation equipment 40 being connected with light generator 30, or can also be from reading on other movable storage mediums etc..
Communication interface 317 is connected with controller 318, and can be communicated with image documentation equipment 40, and then the working condition of light generator 30 can be controlled on image documentation equipment 40.The working condition includes synchronous regime, asynchronous, preceding curtain are synchronous, rear curtain is synchronous etc..Specific communication mode can be it is wired, such as direct PC line interfaces, or wireless, such as WIFI, bluetooth, infrared or radio frequency etc..For using the part that for wirelessly, can generally installs control light work on image documentation equipment 40, such as draw sudden strain of a muscle device on digital camera hot shoe, or other types of communication control module on image documentation equipment is used to receive and dispatch instruction.
Communication interface 317 can also intervene public data network, such as internet, LAN etc. in addition to the above-mentioned collaborative work with image documentation equipment 40 in wired or wireless form.
Controller 318 as light generator 30 master controller, it is connected with each circuit unit/part, to control its orderly work.
Sensor interface 319, it is connected to obtain detection data with all types of sensors, wherein all types of sensors include temperature sensor, illuminance transducer, color sensor, range sensor, etc..And, after the detection data in obtaining these sensors, send to controller 318, parsed by controller 318 and be processed as the control parameter that can be performed by light source driving circuit 315, and then the driving of each LED is controlled to send required light by light source driving circuit 315.
Display screen and control interactive interface 320, it is connected with controller 318, needs the data of display and shows to be obtained from controller 318.In addition, if without display screen, can realize the control of different parameters and pattern in system by way of button, due to being very common method using button, I will not elaborate.
Open circuit and switch 321, it is connected with controller 318, for right under the control of controller 318
Light generator 30 is turned on and off；On the other hand, also it is connected with control signal interface 322.
Control signal interface 322, it is connected with the image documentation equipment communication interface in image documentation equipment 40, to receive the control instruction of image documentation equipment 40, and when receive be turned on and off instruction when, control the open circuit to be performed with switch 321.Wherein, the connection between control signal interface 322 and image documentation equipment communication interface can use wired or wireless way, and concrete form may be referred to wired and wireless transmission method above.
Mechanical interface 323, it is connected with image documentation equipment mechanical interface, to realize connecting and support.It is of course also possible to be for being connected with outside support.
In embodiment illustrated in fig. 3, light generator 30 is connected as outer blaze equipment with image documentation equipment 40, that is to say, that it can be referred to as external light generator.Its specific form of expression, can with, as shown in Figure 13 to Figure 17.It is the external digital camera of a light generator shown in Figure 13 to Figure 15, it includes light generator and digital camera；Wherein, the light generator includes lens 7, infrared window 13, fixed knob 14, connecting interface 15, fuselage 16, messagewindow 17, control button or knob 18, switch 19, communication interface 20, rotating shaft 21, light shell outer cover 22.
Wherein, connecting interface 15 realizes the mechanical connection with digital camera, while the function of data transfer can also be had concurrently, specifically it can be existing hot shoe interface etc..Fixed knob 14 is used to realize the fastening of light generator and digital camera；Infrared window 13 is used to install auxiliary focusing lamp and installs the module with optics or radio communication function；Messagewindow 17 is used to show various parameters information；Control button or knob 18 are used for |input paramete configuration information etc., switch 19 is used to start or close light generator, communication interface 20 is used to connect external equipment or network, specifically can be using infrared, WIFI, bluetooth or Zigbee etc., rotating shaft 21 can realize that light source part is connected with the rotation of fuselage 16, and lens 7 are used for final output light.
Figure 16 and 17 shows example of the mobile phone as image documentation equipment, is provided with external light generator 130 in figure on mobile phone, and the light generator 130 can realize mechanical connection by way of buckle with mobile phone, or can also be fixed by screws on the shell of mobile phone.Label 110 is luminous component, such as LED.Wherein, the communication between light generator 130 and mobile phone can wirelessly for example infrared, bluetooth, wifi etc., naturally it is also possible to use wireline interface, this wireline interface can be multiplexed with mechanical means therebetween.
The image documentation equipment 40 can be with digital camera, mobile phone or video camera etc..
It should be noted that light source driving circuit 315 is responsible for LED light source 312 provides electricity characteristic control, it is changed by by the electric energy of power supply, is exported the required voltage of LED light source 312, electric current, and power etc. and is required；Meanwhile, light source driving circuit 315 meets the requirement that the intensity and color of 40 pairs of light of image documentation equipment are adjusted, i.e., its output voltage, electric current, power and response time, response frequency, pulse strength and frequency etc. are required for meeting the requirement of image documentation equipment color LED light source 312 more than 40 pairs, and these parameters can also match to reach the collaborative work under ideal conditions (such as synchronization flash, asynchronous flash of light with camera, stroboscopic flash of light, etc.).
The output parameter of light source driving circuit 315 directly determines the light characteristic of the output of LED light source 312, including but not limited to light intensity, luminous flux, colour rendering, colour temperature, color, spectrum, chromaticity coordinates etc..The change of these parameters can be changed by changing the input current value of each paths of LEDs, or PWM count value (including frequency, dutycycle, amplitude) to light adjusting circuit change, or the parameter of other similar drive circuits control.All these controls can be completed by control circuit, including core controller, data exchange circuit (not shown), control parameter distributor circuit (not shown), sensor interface, communication interface etc..The form of control can be push button, or touch-screen type, or remote control property, or controlled by sensor automatically control form.
With reference to Figure 12, it is illustrated that the schematic diagram of one embodiment of image system of the present invention.As illustrated, it is with the difference of embodiment illustrated in fig. 3, light generator 31 is built in image system 1200, and something in common no longer does repeat specification.
Wherein, the image documentation equipment 32 of image system 1200 is connected with light generator 31, and it may be referred to the associated description of embodiment illustrated in fig. 3 including camera lens, sensor, primary processor, memory, communication interface, device power supply (DPS), display interface and mechanical structure etc..Processor in image documentation equipment 32 is connected with communication interface 317 and controller 318.Controller carries out data exchange and order transmission with the processor of image documentation equipment by corresponding communication interface in light generator, and communication interface mode can be wired form, or wireless form.After processor sends order, the controller of light generator is started working, and setting light generator is proceeded by according to the program of setting.
For the situation of Built-in light optical generator in Figure 12 embodiments, its specific application may be referred to Figure 18 and Figure 19.Wherein, Figure 18 show a digital camera, and wherein label 200 is the luminous component in built-in light generator, and such as LED, label 300 is camera lens；Figure 19 show the back side of a mobile phone (can certainly be panel computer), and it equally includes camera lens 300, the luminous component 200 of light generator.
In it there is the embodiment of control method in a kind of light of the invention (relevant portion may be referred to embodiment illustrated in fig. 3), the initial data of the photochroic features of the existing sensor collection first area of the image documentation equipment first in image system, the initial data (can certainly be the intermediate data for slightly processing) is by obtaining the photochroic features information (the photochroic features information can be presented to user, such as by display interface) in first area region after the processor Treatment Analysis in image documentation equipment.
In one embodiment of the invention, the Treatment Analysis can be that processor only changes each to the light intensity signal that the sub- light-metering element of specific wavelength response is obtained, by correction in advance, after each light intensity signal carries out matrix operation (as described above) with corresponding color coefficient, the basic data in the photochroic features in the region corresponding to sub- light-metering element, i.e. chromaticity coordinates can be obtained.Wherein, the conversion can be coefficient conversion, i.e., sub- light-metering element has obtained original R, G and B strength values, but this numerical value can not be for calculating chromaticity coordinates, because R, G and B are devious, so needing original R before, G and B intensity convert and obtains a coefficient or equation.A new R ought be detected afterwards, after G and B numerical value is obtained, calculated by above coefficient or equation and obtained real R, G and B intensity levels, this numerical value could be used for follow-up calculating chromaticity coordinates, due to being known to one of skill in the art for specific transfer process, therefore no longer describe in detail.And can be the R to sub- light-metering element for correction in advance, the X of G and B intensity and light source used, Y and Z tristimulus values obtains transition matrix by matrix come opening relationships, as previously described.According to the numerical value of the transition matrix for calculating, after daughter element senses that strength values are calibrated, it is multiplied by transition matrix, you can to obtain the X of the spectrum, Y and Z and chromaticity coordinates x and y.
Thus after chromaticity coordinates is changed again, you can obtain more photochroic features information, for example, illumination, colour temperature, chromaticity coordinates, colour rendering index, etc..This part is changed for a person skilled in the art, belongs to rudimentary knowledge, and specific transfer process is not detailed herein.With above R, for G and B is as three sub- light-metering elements, the light that every individual sub- light-metering element corresponds to red, green, blue part respectively has response, so, after the intensity of red, green, blue light is known, by fitting, that is, knows the photochroic features of this basic light-metering elemental areas.
Now, user can select a certain region (region can be regular or irregular as described above) in first area by input equipment (such as button or touch-screen etc.), so that foundation of the photochroic features information in the region of the selection as adjustment light generator output light.Specifically, in an embodiment of the invention, the process that the output of light generator is adjusted according to photochroic features information generation configuration parameter includes：
First, whether the photochroic features information according to the first area obtains in the first area at least partly brightness in region and color coordinate information (need other parameters add come)；Detailed process has been described in detail above, and repetition is not done herein.
Then, brightness and color coordinate information according to screening-mode set in advance and at least part of region obtains being needed under the screening-mode set in advance the Photochromic Properties data of output；Detailed process is as follows：Photochroic features data (including brightness and the chromaticity coordinates (the two are bases), and other photochromic data, for example, colour temperature, spectrum etc. of the standard or recommendation needed under certain pattern can have been contained in screening-mode set in advance；Then, the photochroic features information of known first area before, so, difference is obtained according to recommendation and currency, and system accounting calculates light source needs the Photochromic Properties data of output.
Afterwards, the characteristic parameter of the light source in the Photochromic Properties data and light generator obtains the configuration parameter.
Wherein, as a kind of situation, previous step has determined that the optical color parameter of output required for light source part.It is main to include to reach the brightness of needs, it is necessary to how many luminous flux exported, in order to reach corresponding color, it is necessary to light source mixed light needs the chromaticity coordinates point for reaching, and dominant wavelength, spectrum etc..In addition, the optical color parameter of each paths of LEDs itself in about light source, including its chromaticity coordinates point, the relation of luminous flux and electric current, it is to be built in processor or memory, so, the chromaticity coordinates that processor has according to each paths of LEDs, luminous flux ability, each paths of LEDs driving parameter to be supplied when needing to reach the optical color parameter for needing output so as to calculate, including, electric current, voltage, frequency etc..
In another case, photochroic features information according to described first area, obtain about some parts in first area or first area or the wherein brightness on certain point and a line and chromaticity coordinates data, then the screening-mode according to set by user, system can provide the target Photochromic Properties of lighting fixture needs output under the pattern of being set to, and including but not limited to lighting fixture needs the luminous flux of output, chromaticity coordinates numerical value, light emission direction, etc. parameter values.According to the characteristic parameter of light source provisioned in these numerical value, and lighting fixture, processor can need the electrical parameter of configuration for light source driving circuit calculate each road light source of above numerical value to be reached, such as electric current, voltage, frequency, etc..Then, after trigger signal sends, lighting fixture starts and carries out light output according to the driving parameter of configuration.
It should be noted that the first area can be a part for whole target shooting area, or whole target shooting area, such as one point or a line, or the region related to target shooting area.
In another embodiment of lamp light control method of the present invention, the initial data that existing sensor in image documentation equipment is collected is not by the processor in image documentation equipment to carry out Treatment Analysis and then obtain photochroic features information, but the initial data is sent to light generator by communication interface, obtained by light generator Treatment Analysis.Specifically：
First, the initial data of the photochroic features of the existing sensor collection target shooting area in image documentation equipment, is then directly sent to light generator the initial data by communication interface.Wherein it is possible to understand, initial data can not also be sent to light generator herein, but the intermediate data that initial data obtained after preliminary treatment is sent to light generator.
After light generator receives the initial data/intermediate data, its internal controller carries out Treatment Analysis to the initial data/intermediate data, obtains the photochroic features information of target shooting area.Wherein, the process of Treatment Analysis can be as the Treatment Analysis process of the processor of image documentation equipment in foregoing embodiments.
After light generator obtains the photochroic features information, the target shooting area and its photochroic features information can also be exported by display screen, user can be by a certain region (region can be regular or irregular as described above) in input equipment (such as button or touch-screen etc.) selection target shooting area, so that foundation of the photochroic features information in the region of the selection as adjustment light generator output light simultaneously.Specifically, in an embodiment of the invention, can be compared for the screening-mode that the photochroic features information in the region of selection and user select by the controller of light generator, obtain under the basis of the photochroic features information in selected region, light conditions required for the final effect of the screening-mode for meeting user's selection, the light conditions are exported to the light source driving circuit of light generator after being converted to configuration parameter, and light source luminescent is driven by the light source driving circuit.
In another embodiment of the present invention, response speed is improved in order to reduce operand, can first by a certain region in user's selection target shooting area, the initial data/intermediate data of the photochroic features in the region of the selection for then being gathered by the controller Treatment Analysis sensor in the processor in image documentation equipment or light generator again simultaneously obtains photochroic features information.Process afterwards may be referred to the description during the preceding paragraph falls, and be not repeated.
In the present invention, light generator can provide the light environment of many colors for the work of image documentation equipment, and user can be adjusted as required by patterned optical output, for example, adjust or change the parameters such as light intensity, luminous flux, colour rendering, colour temperature, color, spectrum, chromaticity coordinates.Meanwhile, the light output of this light generator can be with reference to image documentation equipment device parameter and other external luminous environments carry out comprehensive analysis processing after, the parameter sent by controller is come the light output for determining and corresponding light environment.For example, determining which type of parameter to export luminous environment using by sensor.In addition, this light generator can also according to user set target component numerical value, then according to the state of current image equipment, and external environment situation, oneself state is adjusted, to export specific luminous environment.
In addition, light generator in the present invention and digital camera cooperate in the system for being shot, need on the hot shoe interface of digital camera, be provided be responsible for sending control signal draw sudden strain of a muscle device, drawing sudden strain of a muscle device can be communicated with the communication interface of light generator, so as to realize the linkage of light generator and image documentation equipment.User can draw the pattern or light characteristic of regulation light generator on sudden strain of a muscle device, the working condition of image documentation equipment can also be adjusted, corresponding information is sent to light generator, complete the data exchange between light generator and image documentation equipment, and set according to user, the linkage with image documentation equipment is completed, for the work of image documentation equipment provides more abundant light environment.If the mode that device is dodged without drawing is controlled, it is also possible to be controlled by other communication modes, such as WIFI, bluetooth, zigbee, and directly control etc. method is carried out by wired mode.
Light generator of the invention can also provide light environment for the machine with imaging function such as mobile phone, to allow mobile phone that specific image or video content can be obtained under different luminous environments.When mobile phone carries out imaging operations, this external light generator can be linked and be carried out Collaborative Control with corresponding application program on mobile phone, specific communication and control mode can be communicated and be linked by the way that all kinds possessed on mobile phone are wired with wave point, as directly communicated and data exchange by earpiece holes, or wirelessly communicated, linkage, and data exchange, for example communicated by way of WIFI or bluetooth, or cellular network, the communication patterns such as such as 3G, 4G carry out data exchange.So as to carry out corresponding pattern with the imaging function on mobile phone and parameter is interacted and controlled, to export corresponding light.
In addition, it should be noted that the mixed light of light source output refers to the light in the output of same time after LED used mixes in varing proportions in the application, and not in the same time, ratio used can freely change, and then the color and intensity of the mixed light for sending can be changed over time.Certain the application is not restricted to this kind of mode and is exported, and user can also otherwise realize the output of mixed light.
Light generator of the invention can be to provide various different light environments when image documentation equipment works, structure is simplified simultaneously, (filter part refers to general on traditional light source to eliminate the various filter parts that tradition is the external light units needs that image documentation equipment works, in order to change its single spectrum output, artificially plus the optical filter of a layer specific wavelength before lighting fixture, such as red, green, blueness etc.),) and solve traditional image documentation equipment light units it is photochromic single, be difficult adjustment the shortcomings of.Light units of the invention can flexibly meet image documentation equipment user when equipment works to the various requirement of light；For example, the colour temperature excursion of wide scope, diversified color selection, the requirement of the different degrees of saturation degree under different colours can simulate the adjusting range of various light environments, and abundant function setting, etc..
Claims (10)
1. there is control method in a kind of light, for the light generator in image system, including：
Receive the photochroic features information of first area；
Configuration parameter is generated according to the photochroic features information；
Light is exported according to the configuration parameter.
2. method according to claim 1, it is characterised in that described according to the photochroic features information
Generation configuration parameter includes：
Photochroic features information according to the first area obtains in the first area the bright of at least part of region
Degree and color coordinate information；Or, the photochroic features information according to the first area is obtained in the first area
The photochromic information of the extension at least part of region；
Brightness and color coordinate information according to screening-mode set in advance and at least part of region, or
The photochromic information of the extension according to screening-mode set in advance and at least part of region, obtains described
The Photochromic Properties data of output are needed under screening-mode set in advance；
The characteristic parameter of the light source in the Photochromic Properties data and light generator obtains the configuration ginseng
Number.
3. method according to claim 1, it is characterised in that the photochroic features information source in：
Existing sensor collection initial data in the image system, the initial data obtains described by Treatment Analysis
Photochroic features information.
4. there is control method in a kind of light, for the light generator in image system, including：
Receive the initial data or intermediate data of the photochroic features of the first area of sensor collection；
Initial data described in Treatment Analysis or intermediate data obtain photochroic features information；According to the photochroic features
Information generates configuration parameter；
Light is exported according to the configuration parameter.
5. method according to claim 4, it is characterised in that described according to the photochroic features information
Generation configuration parameter includes：
Photochroic features information according to the first area obtains in the first area the bright of at least part of region
Degree and color coordinate information；Or, the photochroic features information according to the first area obtains the first area
In at least partly region extension photochromic information；
Brightness and color coordinate information according to screening-mode set in advance and at least part of region, or
The photochromic information of the extension according to screening-mode set in advance and at least part of region, obtains described
The Photochromic Properties data of output are needed under screening-mode set in advance；
The characteristic parameter of the light source in the Photochromic Properties data and light generator obtains the configuration ginseng
Number.
6. method according to claim 4, it is characterised in that the sensor be in image system
Some sensors.
7. a kind of image system, including image documentation equipment and light generator, the image documentation equipment include optical section
Point, sensor, processor and communication interface；Wherein, the sensor is used to gather the photochromic spy in first area
The initial data levied, the processor obtains photochroic features information for initial data described in Treatment Analysis；
The light generator includes light source, light source driving circuit, controller and communication interface；
Wherein, the communication interface of the image documentation equipment is connected with the communication interface of light generator, with to described
Light generator exports the photochroic features information, and the controller passes through institute according to the photochroic features information
State light source driving circuit and control the light source luminescent；Also, the sensor is existing in the image system
Sensor.
8. image system according to claim 7, it is characterised in that the light source includes at least three kinds
The luminescent device of color, the light of the light source output is the light that sends of luminescent device of at least three kinds of colors
Mixed light.
9. a kind of image system, including image documentation equipment and light generator, the image documentation equipment include optical section
Point, sensor, processor and communication interface；Wherein, the sensor is used to gather the photochromic spy in first area
The initial data levied；
The light generator includes light source, light source driving circuit, controller and communication interface；
Wherein, the communication interface of the image documentation equipment is connected with the communication interface of light generator, with to described
Light generator exports the initial data or intermediate data, initial data described in the controller Treatment Analysis
Or intermediate data obtains photochroic features information, and pass through the light source driving circuit according to the photochroic features information
Control the light source luminescent；Also, the sensor is existing sensor in the image system.
10. image system according to claim 9, it is characterised in that the light source includes at least three
The luminescent device of kind of color, the light of the light source output is the light that sends of luminescent device of at least three kinds of colors
Mixed light.
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Application publication date: 20170609 |