CN114486192B - Method, medium and equipment for consistently selecting color chips of white light LED lamp - Google Patents
Method, medium and equipment for consistently selecting color chips of white light LED lamp Download PDFInfo
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Abstract
The invention discloses a method, medium and equipment for selecting consistent color of a color chip of a white light LED lamp, wherein the method prepares for determining the subsequent test wavelength range by acquiring the target color coordinate of a coated color chip; determining a test wavelength range according to the obtained target color coordinates, and preparing for the subsequent calculation of tristimulus values corresponding to each wavelength; determining tristimulus values corresponding to each wavelength in the test wavelength range according to the test wavelength range, and preparing for determining test color coordinates; determining a test color coordinate according to the obtained tristimulus values; and determining the cut-off wavelength of the coating color chips according to the obtained test color coordinates and target color coordinates so as to realize the effect of consistent color of the color chips of the white light LED lamp. By the embodiment of the invention, the color of the color chip of the white light LED lamp is consistent.
Description
Technical Field
The invention relates to the technical field of LEDs, in particular to a method, medium and equipment for uniformly selecting color chips of a white light LED lamp.
Background
With the advent of LEDs, the LED has been widely used in various fields of signal display and illumination light sources, such as interior and exterior lamps of automobiles, various traffic lights, etc., because of its high luminous efficiency and low price, and among them, the application of color lights is more common. When the white light LED product needs to be colored, a part of spectrum is filtered by a coated color plate, so that a color effect is realized. Because different white light LEDs have different spectrums, the colors of the coated color chips are different, wherein when the coating errors of part of wavelengths are large, the colors of the coated color chips are more difficult to realize consistent colors of the coated color chips, especially when the colors of the coated color chips are the composite colors of cyan and red.
Therefore, how to make the color of the color plate of the white light LED lamp consistent is a technical problem to be overcome in the technical field of LEDs.
Disclosure of Invention
The invention provides a method for selecting the consistent color of the color chips of a white light LED lamp, which can ensure that the color chips of the white light LED lamp are consistent.
The embodiment of the invention provides a method for selecting consistent color of color chips of a white light LED lamp, which comprises the following steps:
obtaining target color coordinates of a coated color chip;
determining a test wavelength range according to the target color coordinates;
determining a tristimulus value corresponding to each wavelength in the test wavelength range according to the test wavelength range;
determining a test color coordinate according to the tristimulus values;
and determining the cut-off wavelength of the coating color chip according to the test color coordinate and the target color coordinate.
Preferably, the determining the test wavelength range according to the target color coordinates includes:
converting the target color coordinates into RGB values of a coating color chip;
determining the target color of the coating color chip according to the RGB value;
and determining a test wavelength range according to the target color.
Preferably, the determining the cut-off wavelength of the coated color chip according to the test color coordinate and the target color coordinate comprises the following specific steps:
calculating a target distance between each test color coordinate and the target color coordinate, and taking the test color coordinate corresponding to the minimum target distance as a target test coordinate;
and determining the cut-off wavelength of the coating color chip according to the target test coordinates.
Preferably, the calculation formula of the target distance is as follows:
I λ ＝(x λ -x) 2 +(y λ -y) 2
wherein ,Iλ For the target distance, x λ For the value of the abscissa of the test color corresponding to the test wavelength lambda in the test wavelength range, x is the targetValues of the abscissa of the color coordinates, y λ Y is a value of the ordinate of the target color for the test color corresponding to the test wavelength λ in the test wavelength range.
Preferably, the test color coordinates are determined according to the tristimulus values; the calculation formula of the test color coordinates is as follows:
wherein ,xλ For the abscissa value of the wavelength lambda corresponding to the test color coordinate, y λ For the ordinate value of the test color coordinate corresponding to the wavelength λ, X (λ), Y (λ), and Z (λ) are the three stimulus function values corresponding to the wavelength λ, respectively.
Preferably, the determining the test wavelength range according to the target color further includes:
when the target color is red, the test wavelength range is 600-650nm;
when the target color is green, the test wavelength range is 490-530nm;
when the target color is blue, the test wavelength range is 450-500nm;
when the target color is cyan, the test wavelength range is 500-550nm;
when the target color is pink, the test wavelength range is 580-650nm;
when the target color is yellow, the test wavelength range is 510-580nm.
Preferably, the acquiring of the tristimulus values further includes:
acquiring spectrum distribution data of a white light LED;
and determining the tristimulus values according to the spectrum distribution data.
Preferably, the tristimulus values are determined according to the spectrum distribution data, and the calculation formula is as follows:
wherein X (lambda), Y (lambda) and Z (lambda) are the three stimulus function values corresponding to the wavelength lambda respectively, P (lambda) is the spectral distribution data corresponding to the wavelength lambda,CIE standard observer data for wavelength λ.
The embodiment of the invention also provides a non-transitory electronic device readable storage medium, which comprises: and when the program is run by the electronic equipment, the electronic equipment executes the color patch color consistency selection method of the white light LED lamp.
The embodiment of the invention also provides electronic equipment, which comprises: a memory for storing a computer program; a processor for executing the computer program to implement a method for color patch consistent selection of a white LED luminaire as described in any one of the above.
Compared with the prior art, the color chip color consistency selection method for the white light LED lamp provided by the embodiment of the invention has the following beneficial effects: the method comprises the steps of obtaining target color coordinates of a coating color chip, judging target color of the coating color chip according to the target color coordinates, determining a corresponding test wavelength range in a spectrum according to the target color, sequentially determining tristimulus values corresponding to each wavelength in the test wavelength range, converting the tristimulus values into the test color coordinates, calculating a target distance between the target color coordinates and the test color coordinates corresponding to each wavelength in the test range, taking the test color coordinates corresponding to the minimum target distance as target test coordinates, and finally taking the wavelength corresponding to the target test coordinates as cut-off wavelength of the coating color chip. By the embodiment of the invention, when the white light LED wants to display the target color, only the coating color chip is required to be added on the white light LED, and the coating color chip can only transmit a certain specific wavelength, so that the color displayed by the white light LED added with the coating color chip is consistent with the target color.
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Fig. 1: the method for selecting the color consistency of the color chips of the white light LED lamp is a flow diagram of the method.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a method for selecting color consistency of color chips of a white LED lamp according to an embodiment of the present invention includes the steps of:
and S11, acquiring target color coordinates of the coating color chips.
And step S12, determining a test wavelength range according to the target color coordinates.
Specifically, the target color coordinates may be converted to RGB values, thereby obtaining a target color of the coated color chip, and determining the test wavelength range on the LED spectrum according to the target color.
And step S13, determining a tristimulus value corresponding to each wavelength in the test wavelength range according to the test wavelength range.
Specifically, according to the obtained test wavelength range, the target color has a specific test wavelength range, and is obtained by calculating the spectrum data P (λ) and the tristimulus functions X (λ), Y (λ), and Z (λ), multiplying the corresponding wavelengths respectively, and accumulating the multiplied wavelengths to obtain the tristimulus value X, Y, Z corresponding to the target color.
S14, determining a test color coordinate according to the tristimulus values;
specifically, the tristimulus values X, Y, Z corresponding to the obtained target color are obtained, and corresponding test color coordinates are obtained according to the coordinate formulas x=x/(x+y+z) and y=y/(x+y+z).
And S15, determining the cut-off wavelength of the coating color chip according to the test color coordinates and the target color coordinates.
Specifically, the distances from the color coordinates corresponding to each wavelength to the target coordinates are calculated by using the test color coordinates and the target color coordinates, and the wavelength corresponding to the color coordinate closest to the target coordinates is selected, namely the cut-off wavelength of the corresponding color coating color chip.
In the embodiment of the invention, the invention provides a method for uniformly selecting the color of a color chip of a white light LED lamp, which has the following beneficial effects: the method comprises the steps of obtaining target color coordinates of a coating color chip, judging target color of the coating color chip according to the target color coordinates, determining a corresponding test wavelength range in a spectrum according to the target color, sequentially determining tristimulus values corresponding to each wavelength in the test wavelength range, converting the tristimulus values into the test color coordinates, calculating a target distance between the target color coordinates and the test color coordinates corresponding to each wavelength in the test range, taking the test color coordinates corresponding to the minimum target distance as target test coordinates, and finally taking the wavelength corresponding to the target test coordinates as cut-off wavelength of the coating color chip. By the embodiment of the invention, when the white light LED wants to display the target color, only the coating color chip is required to be added on the white light LED, and the coating color chip can only transmit a certain specific wavelength, so that the color displayed by the white light LED added with the coating color chip is consistent with the target color.
In another embodiment of the present invention, in a method for selecting color consistency of color patches of a white LED lamp, determining a test wavelength range according to the target color coordinates includes: converting the target color coordinates into RGB values of a coating color chip; determining the target color of the coating color chip according to the RGB value; and determining a test wavelength range according to the target color.
Specifically, the target color coordinates are firstly converted into tristimulus values, then the tristimulus values are converted into RGB values of three primary colors, the target color of the coating color piece can be determined through the RGB values, and then the testing wavelength range corresponding to the target color is determined according to the target color.
In the method for selecting color consistency of color chips of a white LED lamp according to another embodiment of the present invention, determining a cutoff wavelength of the coated color chip according to the test color coordinate and the target color coordinate includes the specific steps of: calculating a target distance between each test color coordinate and the target color coordinate, and taking the test color coordinate corresponding to the minimum target distance as a target test coordinate; and determining the cut-off wavelength of the coating color chip according to the target test coordinates.
In the method for selecting color consistency of color patches of a white LED lamp according to another embodiment of the present invention, the calculation formula of the target distance is as follows:
I λ ＝(x λ -x) 2 +(y λ -y) 2
wherein ,Iλ For the target distance, x λ For the value of the test color abscissa corresponding to the test wavelength lambda in the test wavelength range, x is the value of the target color coordinate abscissa, y λ Y is a value of the ordinate of the target color for the test color corresponding to the test wavelength λ in the test wavelength range.
Specifically, if the target color coordinates of the red coating color patch are R (x r ,y r ) When the target color is red, the corresponding wavelength test range is 600-650nm, and the current color coordinate R is calculated 600 (x 600 ,y 600 ) Then gradually increasing the value of lambda toTest color coordinate R at 650nm 650 (x 650 ,y 650 ) Respectively calculating the distance from the corresponding color coordinates of each wavelength in the test range to the target coordinates:
wherein ,Iλ Test color coordinates for wavelength λWith the target color coordinates R (x r ,y r ) Distance between->Respectively the abscissa value and the ordinate value of the test color coordinate corresponding to the test wavelength lambda, and x r 、y r The abscissa and ordinate values of the target color coordinates of the red coating color patch are respectively.
And finally, selecting the test color coordinate corresponding to the minimum value of the target distance from the target distances of the test color coordinate and the target color coordinate corresponding to each wavelength in the test wavelength range as the target test coordinate, and taking the wavelength corresponding to the target test coordinate as the cut-off wavelength of the red coating color chip.
If the target color coordinates of the green coating color patch are G (x) g ,y g ) Wherein when the target color is green, the corresponding test wavelength range is 490-530nm, and if the spectrum within the range of + -20 nm is retained according to the selected wavelength, the corresponding test wavelength range calculates the color coordinates from the wavelength 510nm by calculating the color coordinates G (x) 510 ,y 510 ) Gradually increasing the value of λ to a color coordinate G (x 550 ,y 550 ) The target distances from the test color coordinates corresponding to the wavelengths in the test range to the target coordinates are calculated respectively, and the formula is as follows:
wherein ,Iλ Test color coordinates for wavelength λWith the target color coordinates G (x g ,y g ) Target distance between>Respectively the abscissa value and the ordinate value of the test color coordinate corresponding to the test wavelength lambda, and x g 、y g The abscissa and ordinate values of the target color coordinates of the green coating color patch are respectively.
And finally, selecting the test color coordinate corresponding to the minimum target distance from the target distances between the test color coordinate corresponding to each wavelength in the test wavelength range and the target color coordinate as the target test coordinate, and taking the wavelength corresponding to the target test coordinate as the cut-off wavelength of the green coating color chip.
If the target color coordinates of the blue coating color patch are B (x b ,y b ) When the target color is blue, the corresponding test wavelength range is 450-500nm, and the test color coordinate B with lambda of 500nm is calculated 500 (x 500 ,y 500 ) And gradually decreasing the value of lambda to the color coordinate B of 450nm 450 (x 450 ,y 450 ) The target distance from the corresponding color coordinates of each wavelength to the target coordinates is calculated respectively, and the formula is as follows:
wherein ,Iλ Test color coordinates for wavelength λWith the target color coordinates B (x b ,y b ) Target distance between>Respectively the abscissa value and the ordinate value of the test color coordinate corresponding to the test wavelength lambda, and x b 、y b The abscissa and ordinate values of the target color coordinates of the blue coated patch are respectively.
And finally, selecting the test color coordinate corresponding to the minimum value of the target distance from the target distances of the test color coordinate and the target color coordinate corresponding to each wavelength in the test wavelength range as the target test coordinate, and taking the wavelength corresponding to the target test coordinate as the cut-off wavelength of the blue coating color chip.
If the target color coordinates C (x c ,y c ) Wherein when the target color is cyan, the test wavelength range is 500-550nm, and the current test color coordinate C is calculated to be 500nm 500 (x 500 ,y 500 ) Gradually increasing the value of lambda to the test color coordinate C corresponding to the wavelength of 550nm 550 (x 550 ,y 550 ) The distance from the corresponding color coordinates of each wavelength to the target coordinates is calculated respectively, and the formula is as follows:
wherein ,Iλ Test color coordinates for wavelength λWith the target color coordinates C (x c ,y c ) Target distance between>Respectively the abscissa value and the ordinate value of the test color coordinate corresponding to the test wavelength lambda, and x c 、y c The abscissa and ordinate values of the target color coordinates of the cyan coating patch, respectively.
And finally, selecting the test color coordinate corresponding to the minimum value of the target distance from the target distances of the test color coordinate and the target color coordinate corresponding to each wavelength in the test wavelength range as a target test coordinate, and taking the wavelength corresponding to the target test coordinate as the cut-off wavelength of the cyan coating color chip.
If the target color coordinates M (x m ,y m ) Wherein when the target color is pink, the corresponding test wavelength range is 580-650nm, and the corresponding test color coordinate M with lambda of 580nm is calculated 580 (x 580 ,y 580 ) Gradually increasing the value of lambda to the test color coordinate M corresponding to the wavelength of 650nm 650 (x 650 ,y 650 ) The distances from the test color coordinates corresponding to the wavelengths to the target color coordinates are calculated respectively, and the calculation formula is as follows:
wherein ,Iλ Test color coordinates for wavelength λWith the target color coordinates M (x m ,y m ) Target distance between>Respectively the abscissa value and the ordinate value of the test color coordinate corresponding to the test wavelength lambda, and x m 、y m The abscissa and ordinate values of the target color coordinates of the pink coating color chips are respectively.
And finally, selecting the test color coordinate corresponding to the minimum target distance from the target distances between the test color coordinate corresponding to each wavelength in the test wavelength range and the target color coordinate as the target test coordinate, and taking the wavelength corresponding to the target test coordinate as the cut-off wavelength of the pink coating color chip.
If the target color coordinate Y (x) y ,y y ) When the target color is yellow, the corresponding test wavelength range is 510-580nm, and the test color coordinate corresponding to 510nm is calculatedY 510 (x 510 ,y 510 ) Gradually increasing the value of lambda to the test color coordinate Y corresponding to the wavelength of 580nm 580 (x 580 ,y 580 ) The distance from the corresponding color coordinates of each wavelength to the target coordinates is calculated respectively, and the calculation formula is as follows:
wherein ,Iλ Test color coordinates for wavelength λWith the target color coordinate Y (x y ,y y ) Target distance between>Respectively the abscissa value and the ordinate value of the test color coordinate corresponding to the test wavelength lambda, and x y 、y y Respectively the abscissa value and the ordinate value of the target color coordinate of the yellow coating color chip.
And finally, selecting the test color coordinate corresponding to the minimum value of the target distance from the target distances of the test color coordinate and the target color coordinate corresponding to each wavelength in the test wavelength range as the target test coordinate, and taking the wavelength corresponding to the target test coordinate as the cut-off wavelength of the yellow coating color chip.
In the method for selecting color consistency of color patches of a white LED lamp according to another embodiment of the present invention, the calculation formula of the target distance is as follows:
wherein ,Iλ For the target distance, x λ For the value of the test color abscissa corresponding to the test wavelength lambda in the test wavelength range, x is the value of the target color coordinate abscissa, y λ For a test color corresponding to a test wavelength lambda in a test wavelength rangeThe value of the ordinate of the color, y, is the value of the ordinate of the target color.
In the method for selecting color consistency of color patches of a white light LED lamp provided by another embodiment of the present invention, a test color coordinate is determined according to the tristimulus values; the calculation formula of the test color coordinates is as follows:
wherein ,xλ For the abscissa value of the wavelength lambda corresponding to the test color coordinate, y λ For the ordinate value of the test color coordinate corresponding to the wavelength λ, X (λ), Y (λ), and Z (λ) are the three stimulus function values corresponding to the wavelength λ, respectively.
In the method for selecting color consistency of color patches of a white LED lamp according to another embodiment of the present invention, the determining a test wavelength range according to the target color further includes:
when the target color is red, the test wavelength range is 600-650nm;
when the target color is green, the test wavelength range is 490-530nm;
when the target color is blue, the test wavelength range is 450-500nm;
when the target color is cyan, the test wavelength range is 500-550nm;
when the target color is pink, the test wavelength range is 580-650nm;
when the target color is yellow, the test wavelength range is 510-580nm.
Specifically, when the target color of the coated color chip is red, the coated color chip scheme is to filter out part of the spectrum, retain the red spectrum, and virtually all the spectrum is red after 600nm, so the selection starts from 600 nm. Due to the problem of the coating process, the filtering wavelength is necessarily deviated, the spectrum is reserved as much as possible, and the more the spectrum is, the smaller the influence of the wavelength deviation on the color is. In practical application, no red color chip exceeding 650nm is applied, and after 650nm, spectrum data are fewer, and brightness is very low, so that the range of 600-650nm is selected for calculation.
When the target color of the coated color chip is green, the wavelength range of green is 490-530nm, so the wavelength range of green is 490-530nm. If the spectrum is retained within a range of + -20 nm, such as 490nm + -20 nm, at the selected wavelength, the starting value of the green test wavelength range may be 470nm or 490nm, and similarly, the ending value of the green test wavelength range may be 510nm or 550nm.
When the target color of the coated color chip is blue, it can be determined that the color chip is blue below 500nm according to the LED relative spectrum, but the color chip is not blue below 450nm in the practical coated color chip application, so when the target color of the coated color chip is blue, the corresponding test wavelength range is 450-500nm.
When the target color of the coated color patch is cyan, since the cyan spectrum has a blue portion and a green portion, the blue portion spectrum is fully reserved, and thus the start value of the test wavelength range is 500nm, and since the end value of the green wavelength range is 530nm, in order to reserve the spectrum within the range of ±20nm, the corresponding test range is 500-550nm when the target color of the coated color patch is cyan.
When the target color of the coated color chip is pink, the spectrum of the red part and the spectrum of the blue part are reserved completely, and some pink spectrum needing to be bluish is reserved at 600nm-650nm and at 580nm, so when the target color of the coated color chip is pink, the corresponding test wavelength range is 580-650nm.
When the target color of the coated color chip is yellow, the yellow spectrum has a red part and a green part, the red part spectrum is completely reserved, and in order to reserve more spectrum, the yellow spectrum is orange at 580nm and red after 600nm, so that the green spectrum is from 580nm to 510nm, and the range of the test wavelength is 510-580nm.
In the method for selecting color consistency of color chips of a white LED lamp according to another embodiment of the present invention, the obtaining of the tristimulus values further includes: acquiring spectrum distribution data of a white light LED; and determining the tristimulus values according to the spectrum distribution data.
Specifically, the spectrum of the white light LED light source is tested through photoelectric detection equipment, the spectrum data are exported and stored according to 1nm intervals and recorded as P (lambda), the lambda value range is 380nm-780nm, the spectrum curve of the white light LED light source is obtained, and the tristimulus value is determined according to the spectrum distribution data.
In addition, in the method for selecting color consistency of color patches of a white LED lamp according to another embodiment of the present invention, the tristimulus values are determined according to the spectral distribution data, and a calculation formula is as follows:
wherein X (lambda), Y (lambda) and Z (lambda) are the three stimulus function values corresponding to the wavelength lambda respectively, P (lambda) is the spectral distribution data corresponding to the wavelength lambda,CIE standard observer data for wavelength λ.
In the embodiment of the invention, the color chip consistent selection method of the white light LED lamp provided by the other embodiment of the invention has the following beneficial effects: according to the invention, through testing the spectrum data of the white light LED light source and through calculation and analysis of the spectrum data, a film-coated color chip wavelength selection method requiring colors is provided, especially the wavelength selection of composite colors is realized, more spectrums are reserved as much as possible, the influence of wavelength deviation on the colors is smaller, and the color consistency is better.
Example two
The embodiment of the invention also provides a non-transitory electronic device readable storage medium, which comprises: and when the program is run by the electronic equipment, the electronic equipment executes the color patch color consistency selection method of the white light LED lamp.
Example III
The embodiment of the invention also provides electronic equipment, which comprises: a memory for storing a computer program; a processor for executing the computer program to implement a method for color patch consistent selection of a white LED luminaire as described in any one of the above.
Preferably, the computer program may be divided into one or more modules/units (e.g., computer program) stored in the memory and executed by the processor to perform the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program in the terminal device.
The processor may be a central processing unit (Central Processing Unit, CPU), or may be other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), 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, etc., or the general purpose processor may be a microprocessor, or any conventional processor, which is the control center of the terminal device, that connects the various parts of the terminal device using various interfaces and lines.
The memory mainly includes a program storage area, which may store an operating system, an application program required for at least one function, and the like, and a data storage area, which may store related data and the like. In addition, the memory may be a high-speed random access memory, a nonvolatile memory such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), or the like, or may be other volatile solid-state memory devices.
It should be noted that the above-mentioned terminal device may include, but is not limited to, a processor, a memory, and those skilled in the art will understand that the above-mentioned terminal device is merely an example, and does not constitute limitation of the terminal device, and may include more or fewer components, or may combine some components, or different components.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention, and are not to be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The method for uniformly selecting the color of the color chips of the white light LED lamp is characterized by comprising the following steps of:
obtaining target color coordinates of a coated color chip;
determining a test wavelength range according to the target color coordinates;
determining a tristimulus value corresponding to each wavelength in the test wavelength range according to the test wavelength range;
determining a test color coordinate according to the tristimulus values;
determining the cut-off wavelength of the coating color chip according to the test color coordinate and the target color coordinate;
determining a test wavelength range according to the target color coordinates, including:
converting the target color coordinates into RGB values of a coating color chip;
determining the target color of the coating color chip according to the RGB value;
determining a test wavelength range according to the target color;
and determining the cut-off wavelength of the coated color chip according to the test color coordinate and the target color coordinate, wherein the specific steps are as follows:
calculating a target distance between each test color coordinate and the target color coordinate, and taking the test color coordinate corresponding to the minimum target distance as a target test coordinate;
and determining the cut-off wavelength of the coating color chip according to the target test coordinates.
2. The method for selecting color consistency of color chips of a white light LED lamp according to claim 1, wherein the calculation formula of the target distance is:
wherein ,for the target distance->For a test wavelength in the test wavelength range +.>Values of the corresponding test color abscissa, +.>Values of the abscissa of the target color coordinates, +.>For a test wavelength in the test wavelength range +.>Values of the ordinate of the corresponding test color, +.>Is the value of the ordinate of the target color.
3. The method for consistent color selection of color chips of a white LED lamp of claim 1 wherein test color coordinates are determined based on said tristimulus values; the calculation formula of the test color coordinates is as follows:
wherein ,for wavelength->Abscissa value corresponding to test color coordinates, +.>For wavelength->Ordinate value corresponding to the test color coordinate, +.>、/>、/>Wavelength +.>Corresponding three stimulus function values.
4. The method of claim 1, further comprising determining a test wavelength range based on the target color, and further comprising:
when the target color is red, the test wavelength range is 600-650nm;
when the target color is green, the test wavelength range is 490-530nm;
when the target color is blue, the test wavelength range is 450-500nm;
when the target color is cyan, the test wavelength range is 500-550nm;
when the target color is pink, the test wavelength range is 580-650nm;
when the target color is yellow, the test wavelength range is 510-580nm.
5. The method for selecting color chips for a white LED lamp according to claim 1, wherein said obtaining tristimulus values further comprises:
acquiring spectrum distribution data of a white light LED;
and determining the tristimulus values according to the spectrum distribution data.
6. The method for consistent color selection of color chips of a white LED lamp of claim 5 wherein said tristimulus values are determined from said spectral distribution data as follows:
wherein ,、/>、/>wavelength +.>Corresponding three stimulus function values,/->For wavelength->Corresponding spectral distribution data,/->、/>、/>For wavelength->Corresponding CIE standard observer data.
7. A non-transitory electronic device-readable storage medium, comprising: a program which, when run by an electronic device, causes the electronic device to execute the white LED luminaire patch color consistency selection method of any one of claims 1 to 6.
8. An electronic device, comprising: a memory for storing a computer program; a processor configured to execute the computer program to implement the white LED luminaire color patch color consistent selection method as claimed in any one of claims 1 to 6.
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| JP2009251000A (en) * | 2008-04-01 | 2009-10-29 | Toppan Printing Co Ltd | Color filter, and transflective liquid crystal display using the same |
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| 王亚男 等.三基色白光LED光源颜色稳定性的研究.照明工程学报.2007,第18卷(第3期),58-60、65. * |
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