CN116567893A - Dimming method and device, lighting equipment and computer-readable storage medium - Google Patents
Dimming method and device, lighting equipment and computer-readable storage medium Download PDFInfo
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- 238000004590 computer program Methods 0.000 claims description 12
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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
- 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
- H05B47/155—Coordinated control of two or more light sources
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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
- 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
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The application discloses a dimming method and device, lighting equipment and a computer readable storage medium, wherein the dimming method comprises the following steps: controlling the first light source to irradiate a first spectrum having a first color temperature, controlling the second light source to irradiate a second spectrum having a second color temperature, and controlling the third light source to irradiate a third spectrum having a third color temperature; mixing a first spectrum with a first color temperature, a second spectrum with a second color temperature and a third spectrum with a third color temperature to obtain a first mixed spectrum; controlling a fourth light source to irradiate a green primary color spectrum; and compensating the green primary color spectrum in the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinate of the second mixed spectrum on the chromaticity diagram is positioned on the Planckian curve on the chromaticity diagram.
Description
Technical Field
The present disclosure relates to the field of lighting technologies, and in particular, to a dimming method and device, a lighting device, and a computer readable storage medium.
Background
Along with the development of technology and the improvement of life quality requirements, the color temperature-adjustable lighting device is gradually valued by people, and as people are most accustomed to natural white light, the lighting light emitted by the lighting device is close to the natural white light, and the aim pursued by the lighting industry is always achieved.
In most conventional lighting devices, the adjustment of the lighting light is achieved by adjusting two light sources with different color temperatures. However, when two light sources with different color temperatures are mixed, the spectrum obtained after mixing often deviates from the planckian curve of white light, so that the generated white light has poor effect and is very different from natural white light, and the use requirement cannot be met.
Disclosure of Invention
The application provides a dimming method and device, lighting equipment and a computer readable storage medium, and the dimming method and device comprises the following steps:
in one aspect, the present application provides a dimming method applied to a lighting device, the method including:
controlling the first light source to irradiate a first spectrum having a first color temperature, controlling the second light source to irradiate a second spectrum having a second color temperature, and controlling the third light source to irradiate a third spectrum having a third color temperature;
mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature to obtain a first mixed spectrum, wherein the coordinates of the first mixed spectrum on a chromaticity diagram are (x 1, y 1); wherein the abscissa on the chromaticity diagram represents the proportion of the red primary color in the spectrum, and the ordinate on the chromaticity diagram represents the proportion of the green primary color in the spectrum, and the proportion of the blue primary color in the spectrum is related to the proportion of the red primary color and the proportion of the green primary color;
controlling a fourth light source to irradiate a green primary color spectrum;
compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinates of the second mixed spectrum on a chromaticity diagram are (x 2, y 2); wherein the coordinates (x 2, y 2) lie on the planckian curve on the chromaticity diagram.
In another aspect, the present application provides a dimming device applied to a lighting apparatus, the device comprising:
a first control module for controlling the first light source to irradiate a first spectrum having a first color temperature, controlling the second light source to irradiate a second spectrum having a second color temperature, and controlling the third light source to irradiate a third spectrum having a third color temperature; mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature to obtain a first mixed spectrum, wherein the coordinates of the first mixed spectrum on a chromaticity diagram are (x 1, y 1); wherein the abscissa on the chromaticity diagram represents the proportion of the red primary color in the spectrum, and the ordinate on the chromaticity diagram represents the proportion of the green primary color in the spectrum, and the proportion of the blue primary color in the spectrum is related to the proportion of the red primary color and the proportion of the green primary color;
the second control module is used for controlling the fourth light source to irradiate the green primary color spectrum; compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinates of the second mixed spectrum on a chromaticity diagram are (x 2, y 2); wherein the coordinates (x 2, y 2) lie on the planckian curve on the chromaticity diagram.
In another aspect, the present application provides a lighting apparatus including a light source assembly including a first light source, a second light source, a third light source, and a fourth light source, and a dimming device; the dimming device comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory so as to enable the dimming device to execute the dimming method.
In another aspect, the present application provides a computer-readable storage medium for storing a computer program that causes a computer to execute the above-described dimming method.
According to the technical scheme, a first spectrum with a first color temperature, a second spectrum with a second color temperature and a third spectrum with a third color temperature are mixed to obtain a first mixed spectrum; and compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinate of the second mixed spectrum obtained after compensation on the chromaticity diagram is positioned on the Planckian curve on the chromaticity diagram, so that the obtained second mixed spectrum is ensured to be close to natural white light, and the second mixed spectrum is taken as illumination light, has a very good illumination effect, and meets the use requirement of a user.
Drawings
Fig. 1 is a schematic flow chart of a dimming method according to an embodiment of the present application;
FIG. 2 is a chromaticity diagram schematic provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of an original light curve according to an embodiment of the present disclosure;
fig. 4 is a correspondence between each point coordinate (black circle) on the original dimming curve and each point coordinate (white circle) on the planckian curve provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a dimming device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a lighting device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a lighting device provided in an embodiment of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that, the term "and/or" herein is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, reference to "corresponding" may mean that there is a direct correspondence or an indirect correspondence between the two, and may also mean that there is an association between the two. It should also be appreciated that references to "first" and "second" in the examples of the present application are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
It should be noted that the "lighting device" described herein may be any type of device, such as: desk lamps, floor lamps, indoor ceiling lamps, outdoor lighting equipment, and the like.
Fig. 1 is a flowchart of a dimming method provided in an embodiment of the present application, where the dimming method is applied to a lighting device, as shown in fig. 1, and includes the following steps:
step 101: the first light source is controlled to emit a first spectrum having a first color temperature, the second light source is controlled to emit a second spectrum having a second color temperature, and the third light source is controlled to emit a third spectrum having a third color temperature.
In this embodiment of the present application, the first light source, the second light source, and the third light source are all white light sources, so that the first light source is the first white light source, the second light source is the second white light source, and the third light source is the third white light source.
In some embodiments, the first light source is a warm white light source, such as a light source having a color temperature of 2700K. The second light source is a positive white light source, for example a light source with a color temperature of 6500K. The third light source is a warm white light source different from the first light source, for example a light source with a color temperature of 4000K.
It is understood that the color temperature of the light source is the color temperature of the spectrum (or referred to as light) illuminated by the light source.
In this embodiment, the first light source is controlled to irradiate a first spectrum having a first color temperature, the second light source is controlled to irradiate a second spectrum having a second color temperature, and the third light source is controlled to irradiate a third spectrum having a third color temperature, coordinates of the first spectrum having the first color temperature on the chromaticity diagram, coordinates of the second spectrum having the second color temperature on the chromaticity diagram, and coordinates of the third spectrum having the third color temperature on the chromaticity diagram are all located on the planckian curve.
Here, the chromaticity diagram refers to the CIE1931 chromaticity diagram, the abscissa on the chromaticity diagram represents the proportion of the red primary color in the spectrum, and the ordinate on the chromaticity diagram represents the proportion of the green primary color in the spectrum, and the proportion of the blue primary color in the spectrum is related to the proportion of the red primary color and the proportion of the green primary color.
In one example, as shown in fig. 2, in the chromaticity diagram, the x-coordinate represents the proportion of the red primary color, the y-coordinate represents the proportion of the green primary color, and the coordinate z representing the proportion of the blue primary color can be deduced from x+y+z=1. On the chromaticity diagram, there is a special curve, namely the planckian curve (also called the blackbody curve).
Step 102: mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature to obtain a first mixed spectrum.
In this embodiment, mixing the first spectrum having the first color temperature, the second spectrum having the second color temperature, and the third spectrum having the third color temperature may be achieved by:
obtaining a first setting operation for setting a first mixing ratio of the first spectrum, the second spectrum, and the third spectrum; the first spectrum having the first color temperature, the second spectrum having the second color temperature, and the third spectrum having the third color temperature are mixed in a first mixing ratio.
Here, the mixing ratio may also be referred to as a luminous flux ratio. Accordingly, the first mixing ratio is a first light flux ratio comprising a light flux ratio corresponding to a first spectrum having a first color temperature, a light flux ratio corresponding to a second spectrum having a second color temperature, and a light flux ratio corresponding to a third spectrum having a third color temperature. As an example, the following table 1 gives the light flux ratio corresponding to a first spectrum having a first color temperature, the light flux ratio corresponding to a second spectrum having a second color temperature, and the light flux ratio corresponding to a third spectrum having a third color temperature:
first light source (first spectrum with first color temperature) | Second light source (second spectrum with second color temperature) | Third light source (third spectrum with third color temperature) |
100% | 0% | 0% |
74.9% | 9.4% | 15.7% |
62.4% | 17.4% | 20.2% |
49.2% | 29.1% | 21.7% |
36.1% | 41.8% | 22.1% |
25.8% | 55.2% | 19.0% |
17.3% | 68.0% | 14.7% |
9.0% | 82.6% | 8.4% |
0% | 100% | 0% |
TABLE 1
The spectrally corresponding luminous flux is equal to the total luminous flux times the spectrally corresponding luminous flux ratio. Wherein the total luminous flux can be set as desired.
The first mixed spectrum is obtained by mixing a first spectrum with a first color temperature, a second spectrum with a second color temperature and a third spectrum with a third color temperature, wherein the coordinates of the first mixed spectrum on the chromaticity diagram are (x 1, y 1).
Here, the first mixed spectrum differs in coordinates on the chromaticity diagram according to the different first mixing ratios. The first mixing proportion is adjusted, and a track formed by coordinates of the first mixing spectrum on the chromaticity diagram is called an original dimming curve.
As shown in fig. 3, fig. 3 is a simplified diagram of a chromaticity diagram, taking a first color temperature of 2700K, a second color temperature of 6500K, and a third color temperature of 4000K as an example, a dimming curve (i.e., an original dimming curve) corresponding to a mixed spectrum obtained by mixing spectrums of the three color temperatures is a curve approaching a planckian curve.
Step 103: the fourth light source is controlled to illuminate the green primary color spectrum.
In this embodiment of the present application, the fourth light source is: green (G) light source. The spectrum (or light) illuminated by the fourth light source is the green primary color spectrum (simply referred to as green light).
Step 104: and compensating the green primary color spectrum in the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinate of the second mixed spectrum on the chromaticity diagram is positioned on the Planckian curve on the chromaticity diagram.
As can be seen from fig. 3, the dimming curve corresponding to the first mixed spectrum (i.e., the original dimming curve) obtained in the above step 102 is a curve close to the planckian curve, and the dimming curve is located below the planckian curve, but still has a certain difference from the planckian curve, so that if the first mixed spectrum is used as illumination light, a problem that the difference from natural white light is large occurs, therefore, the technical solution of the embodiment of the present application compensates a specific spectrum in the first mixed spectrum, so that the coordinate of the compensated second mixed spectrum on the chromaticity diagram is located on the planckian curve on the chromaticity diagram, and the second mixed spectrum is used as illumination light, so as to simulate an illumination effect that is nearly identical to the natural white light.
In the embodiment of the application, a specific spectrum is compensated in the first mixed spectrum in the following manner: and compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum.
Here, the specific ratio refers to a mixing ratio corresponding to the green primary color spectrum.
Here, the mixing ratio may also be referred to as a luminous flux ratio.
The spectrally corresponding luminous flux is equal to the total luminous flux times the spectrally corresponding luminous flux ratio. Wherein the total luminous flux can be set as desired.
Compensating a specific spectrum into the first mixed spectrum, wherein the coordinate of the obtained second mixed spectrum on the chromaticity diagram is (x 2, y 2); wherein the coordinates (x 2, y 2) lie on the planckian curve.
Here, the coordinates of the second mixed spectrum on the chromaticity diagram are different at different specific ratios. The specific ratio is adjusted, and the locus formed by the coordinates of the second mixed spectrum on the chromaticity diagram is called a target dimming curve, and the target dimming curve is coincident or almost coincident with the planckian curve because the coordinates of the second mixed spectrum on the chromaticity diagram are located on the planckian curve.
In order to ensure that the coordinates of the second mixed spectrum on the chromaticity diagram lie on the planckian curve, it is necessary to determine the mixing ratio corresponding to the compensated green primary spectrum. Two ways to determine the mixing ratio are given below.
Determining the coordinates of the corresponding reference points on the Planckian curve on the chromaticity diagram according to the coordinates of the first mixed spectrum on the chromaticity diagram; and determining the mixing proportion corresponding to the green primary color spectrum according to the coordinates of the first mixing spectrum on the chromaticity diagram and the coordinates of the reference point on the chromaticity diagram.
In some embodiments, a correspondence table may be preset, where the correspondence table includes a correspondence between each point coordinate on the original dimming curve and each point coordinate on the planckian curve. And according to the corresponding relation table, combining the coordinates of the first mixed spectrum to determine the coordinates of the reference point corresponding to the Planckian curve.
In some embodiments, a correspondence rule may be preset, where the correspondence rule is: one point coordinate on the original dimming curve corresponds to one point coordinate on the planckian curve according to the abscissa invariant principle. And according to the corresponding rule, combining the coordinates of the first mixed spectrum to determine the coordinates of the reference point corresponding to the Planckian curve.
As shown in fig. 4, fig. 4 is a correspondence relationship between each point coordinate (black circle) on the original dimming curve and each point coordinate (white circle) on the planckian curve.
Further, in some embodiments, a second setting operation is obtained, the second setting operation being used to adjust the first mixing ratio; wherein when the first mixing ratio is changed, the coordinates of the first mixing spectrum on the chromaticity diagram are changed; according to the changed coordinates of the first mixed spectrum on the chromaticity diagram, the coordinates of the corresponding reference points on the Planckian curve on the chromaticity diagram are redetermined; and updating the mixing proportion corresponding to the green primary color spectrum according to the changed coordinates of the first mixing spectrum on the chromaticity diagram and the redetermined coordinates of the reference point on the chromaticity diagram.
In some embodiments, a third setting operation is obtained for setting a reference point on the planckian curve; determining a specific proportion according to the coordinates of the first mixed spectrum on the chromaticity diagram and the coordinates of the reference point on the chromaticity diagram; wherein, specific proportion refers to: the mixing ratio corresponding to the green primary color spectrum.
In one particular embodiment, the relationship between the coordinates of the reference point on the planckian curve and the color temperature is shown in table 2 below:
color temperature | x2 coordinates | y2 coordinates |
2700K | 0.4578 | 0.4101 |
3000K | 0.4339 | 0.4033 |
3500K | 0.4073 | 0.393 |
4000K | 0.3818 | 0.3797 |
4500K | 0.3613 | 0.367 |
5000K | 0.3446 | 0.3551 |
5700K | 0.3287 | 0.3425 |
6500K | 0.3123 | 0.3284 |
TABLE 2
In this embodiment of the present application, the coordinates of the first mixed spectrum are (x 1, y 1), the coordinates of the green primary spectrum are (xG, yG), and the coordinates of the reference point on the planckian curve are (x 2, y 2), then the mixing ratio of each spectrum may be determined according to the following formula:
。
wherein Y1 is the luminous flux ratio of the first mixed spectrum, and Y2 is the luminous flux ratio of the green primary color spectrum.
As is clear from the above formula, as long as the coordinates of the first mixed spectrum, the coordinates of the green primary color spectrum, and the coordinates of the reference point on the planckian curve are obtained, the luminous flux ratios of the first mixed spectrum and the green primary color spectrum can be obtained. I.e. the corresponding mixing ratio of the green primary color spectrum is obtained.
It should be noted that the above mixing ratio example satisfies the following principle:
when the third mixing ratio corresponding to the green primary color spectrum increases, the ordinate of the second mixed spectrum with respect to the first mixed spectrum increases.
Through the scheme, the mixing proportion corresponding to the green primary color spectrum is controlled, the compensation of the first mixing spectrum is realized, and the coordinate of the second mixing spectrum obtained after compensation is positioned on the Planckian curve, so that the color of the color-changing light source is close to natural white light, and the second mixing spectrum is used as illumination light, so that the color-changing light source has a very good illumination effect, and meets the use requirements of users.
The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be considered as disclosed herein. For example, the various embodiments and/or technical features of the various embodiments described herein may be combined with any other of the prior art without conflict, and the combined technical solutions should also fall within the scope of protection of the present application.
It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Fig. 5 is a schematic structural diagram of a dimming device according to an embodiment of the present application, where the dimming device is applied to a lighting apparatus, as shown in fig. 5, and the dimming device includes:
a first control module 501 for controlling the first light source to illuminate a first spectrum having a first color temperature, controlling the second light source to illuminate a second spectrum having a second color temperature, and controlling the third light source to illuminate a third spectrum having a third color temperature; mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature to obtain a first mixed spectrum, wherein the coordinates of the first mixed spectrum on a chromaticity diagram are (x 1, y 1); wherein the abscissa on the chromaticity diagram represents the proportion of the red primary color in the spectrum, and the ordinate on the chromaticity diagram represents the proportion of the green primary color in the spectrum, and the proportion of the blue primary color in the spectrum is related to the proportion of the red primary color and the proportion of the green primary color;
a second control module 502, configured to control the fourth light source to irradiate a green primary color spectrum; compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinates of the second mixed spectrum on a chromaticity diagram are (x 2, y 2); wherein the coordinates (x 2, y 2) lie on the planckian curve on the chromaticity diagram.
In some embodiments, the apparatus further comprises:
an input module 503 for obtaining a first setting operation, where the first setting operation is used for setting a first mixing ratio of the first spectrum, the second spectrum and the third spectrum;
the first control module 501 is specifically configured to mix the first spectrum with the first color temperature, the second spectrum with the second color temperature, and the third spectrum with the third color temperature according to the first mixing ratio.
In some embodiments, the apparatus further comprises:
a processing module 504, configured to determine, according to the coordinates of the first mixed spectrum on the chromaticity diagram, coordinates of a reference point corresponding to the planckian curve on the chromaticity diagram; determining the specific proportion according to the coordinates of the first mixed spectrum on the chromaticity diagram and the coordinates of the reference point on the chromaticity diagram; wherein the specific ratio means: and the mixing proportion corresponding to the green primary color spectrum.
In some embodiments, the input module 503 is further configured to obtain a second setting operation, where the second setting operation is used to adjust the first mixing ratio; wherein when the first mixing proportion is changed, the coordinates of the first mixing spectrum on the chromaticity diagram are changed;
the processing module 504 is further configured to redetermine coordinates on the chromaticity diagram of the reference point corresponding to the planckian curve according to the coordinates on the chromaticity diagram of the changed first mixed spectrum; and updating the specific proportion according to the changed coordinates of the first mixed spectrum on the chromaticity diagram and the redetermined coordinates of the reference point on the chromaticity diagram.
In some embodiments, the input module 503 is further configured to obtain a third setting operation, where the third setting operation is used to set a reference point on the planckian curve;
the processing module 504 is further configured to determine the specific ratio according to the coordinate of the first mixed spectrum on the chromaticity diagram and the coordinate of the reference point on the chromaticity diagram; wherein the specific ratio means: and the mixing proportion corresponding to the green primary color spectrum.
In the above scheme, the specific ratio satisfies the following principle:
when the third mixing proportion corresponding to the green primary color spectrum increases, the ordinate of the second mixing spectrum with respect to the first mixing spectrum increases.
In the above scheme, the coordinates of the first spectrum with the first color temperature on the chromaticity diagram, the coordinates of the second spectrum with the second color temperature on the chromaticity diagram, and the coordinates of the third spectrum with the third color temperature on the chromaticity diagram are all located on the planckian curve.
It should be understood by those skilled in the art that the above description of the dimming device of the embodiments of the present application may be understood with reference to the description of the dimming method of the embodiments of the present application.
The processing module in the above-mentioned dimming device may be implemented by a processor, and it should be understood that the processor may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.
Based on the dimming device, the embodiment of the application also provides a lighting device. Fig. 6 is a schematic structural diagram of a lighting device according to an embodiment of the present application, as shown in fig. 6, the lighting device includes a light source assembly 610 and a dimming device 620, where the light source assembly 610 includes a first light source 611, a second light source 612, a third light source 613 and a fourth light source 614; the dimming means 620 comprises a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory to cause the dimming means to perform the steps of the method as described above.
Fig. 7 is a schematic structural diagram of a lighting device provided in an embodiment of the present application. The lighting device shown in fig. 7 comprises a processor 710, from which the processor 710 may call up and run a computer program to implement the method in the embodiments of the present application.
Optionally, as shown in fig. 7, the lighting device may further comprise a memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the methods in embodiments of the present application.
Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.
Optionally, as shown in fig. 7, the lighting device may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices.
Among other things, transceiver 730 may include a transmitter and a receiver. Transceiver 830 may further include antennas, the number of which may be one or more.
Embodiments of the present application also provide a computer-readable storage medium for storing a computer program. The computer readable storage medium may be applied to the lighting device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding flow implemented by the lighting device in the methods in the embodiments of the present application, which is not described herein for brevity.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method of dimming, the method comprising:
controlling the first light source to irradiate a first spectrum having a first color temperature, controlling the second light source to irradiate a second spectrum having a second color temperature, and controlling the third light source to irradiate a third spectrum having a third color temperature;
mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature to obtain a first mixed spectrum, wherein the coordinates of the first mixed spectrum on a chromaticity diagram are (x 1, y 1); wherein the abscissa on the chromaticity diagram represents the proportion of the red primary color in the spectrum, and the ordinate on the chromaticity diagram represents the proportion of the green primary color in the spectrum, and the proportion of the blue primary color in the spectrum is related to the proportion of the red primary color and the proportion of the green primary color;
controlling a fourth light source to irradiate a green primary color spectrum;
compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinates of the second mixed spectrum on a chromaticity diagram are (x 2, y 2); wherein the coordinates (x 2, y 2) lie on the planckian curve on the chromaticity diagram.
2. The method of claim 1, wherein the mixing the first spectrum having the first color temperature, the second spectrum having the second color temperature, and the third spectrum having the third color temperature comprises:
obtaining a first setting operation for setting a first mixing ratio of the first spectrum, the second spectrum, and the third spectrum;
mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature according to the first mixing proportion.
3. The method according to claim 2, wherein the method further comprises:
determining the coordinates of the corresponding reference points on the Planckian curve on the chromaticity diagram according to the coordinates of the first mixed spectrum on the chromaticity diagram;
determining the specific proportion according to the coordinates of the first mixed spectrum on the chromaticity diagram and the coordinates of the reference point on the chromaticity diagram; wherein the specific ratio means: and the mixing proportion corresponding to the green primary color spectrum.
4. A method according to claim 3, characterized in that the method further comprises:
obtaining a second setting operation for adjusting the first mixing ratio; wherein when the first mixing proportion is changed, the coordinates of the first mixing spectrum on the chromaticity diagram are changed;
according to the changed coordinates of the first mixed spectrum on the chromaticity diagram, the coordinates of the corresponding reference points on the Planckian curve on the chromaticity diagram are redetermined;
and updating the specific proportion according to the changed coordinates of the first mixed spectrum on the chromaticity diagram and the redetermined coordinates of the reference point on the chromaticity diagram.
5. The method according to claim 2, wherein the method further comprises:
obtaining a third setting operation, wherein the third setting operation is used for setting a reference point on the Planckian curve;
determining the specific proportion according to the coordinates of the first mixed spectrum on the chromaticity diagram and the coordinates of the reference point on the chromaticity diagram; wherein the specific ratio means: and the mixing proportion corresponding to the green primary color spectrum.
6. The method according to any one of claims 1 to 5, characterized in that the specific ratio satisfies the following principle:
when the third mixing proportion corresponding to the green primary color spectrum increases, the ordinate of the second mixing spectrum with respect to the first mixing spectrum increases.
7. The method of any one of claims 1 to 5, wherein the coordinates of the first spectrum having the first color temperature on the chromaticity diagram, the coordinates of the second spectrum having the second color temperature on the chromaticity diagram, and the coordinates of the third spectrum having the third color temperature on the chromaticity diagram are all on the planckian curve.
8. A dimming device, the device comprising:
a first control module for controlling the first light source to irradiate a first spectrum having a first color temperature, controlling the second light source to irradiate a second spectrum having a second color temperature, and controlling the third light source to irradiate a third spectrum having a third color temperature; mixing the first spectrum with the first color temperature, the second spectrum with the second color temperature and the third spectrum with the third color temperature to obtain a first mixed spectrum, wherein the coordinates of the first mixed spectrum on a chromaticity diagram are (x 1, y 1); wherein the abscissa on the chromaticity diagram represents the proportion of the red primary color in the spectrum, and the ordinate on the chromaticity diagram represents the proportion of the green primary color in the spectrum, and the proportion of the blue primary color in the spectrum is related to the proportion of the red primary color and the proportion of the green primary color;
the second control module is used for controlling the fourth light source to irradiate the green primary color spectrum; compensating the green primary color spectrum into the first mixed spectrum according to a specific proportion to obtain a second mixed spectrum, wherein the coordinates of the second mixed spectrum on a chromaticity diagram are (x 2, y 2); wherein the coordinates (x 2, y 2) lie on the planckian curve on the chromaticity diagram.
9. A lighting apparatus comprising a light source assembly and a dimming device, the light source assembly comprising a first light source, a second light source, a third light source, and a fourth light source; the dimming device comprises a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory to cause the dimming device to perform the method according to any of claims 1 to 7.
10. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 7.
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