CN116498928B - High-brightness simultaneously CCI, HUE, CTO, CTB-adjustable lamp bead array and method thereof - Google Patents
High-brightness simultaneously CCI, HUE, CTO, CTB-adjustable lamp bead array and method thereof Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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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
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- 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 invention discloses a high-brightness simultaneously CCI, HUE, CTO, CTB-adjustable lamp bead array, which is provided with an LED lamp panel, wherein white LED lamp beads and a plurality of other color lamp beads are arranged on the LED lamp panel in a mixed mode, the number of the white LED lamp beads accounts for more than 75% of the total number of the lamp beads, and the sum of the number of the other color lamp beads accounts for within 25% of the total number of the lamp beads; the other color beads are symmetrically distributed in the same color, and the colors are alternately arranged in turn; the white LED lamp beads are uniformly distributed around the other color lamp beads, and the lamp beads are combined to form the lamp bead array. The invention can realize CCI, HUE, CTO, CTB adjustment in a larger range without losing the brightness output of the whole LED, and simultaneously ensures that the output spectrum is more complete, thereby being beneficial to improving the Color Rendering Index (CRI) of the output. The invention can also be applied to white light application, and parameter correction is performed when parameters such as CCI, HUE, CTO, CTB are changed along with the influence of temperature, angle and brightness.
Description
Technical Field
The invention relates to the technical field of light sources, in particular to a lamp bead array with high brightness and CCI, HUE, CTO, CTB adjustable at the same time and a method thereof.
Background
Aiming at the requirements that the LED stage lamp is actually developed and used, and the color temperature CCT is adjustable, the color change index CCI is adjustable, and lamp design manufacturers combine respective technical routes and advantages and disadvantages according to the parameter design requirements of comprehensive evaluation, and two sets of design schemes are formed on the market at present:
first kind:
The whole machine uses the white light beads with high color rendering index Ra and high red color rendering index R9, the scheme has the advantages that the high color rendering index Ra and the high red color rendering index R9 can be combined to the greatest extent, and the highest brightness Lux can be output (supplement shows that the light efficiency lm/W of the ① white light beads is far higher than that of other color beads such as green light, blue light and red light, ② is higher under the condition that the light emitting angle is unchanged, the higher the light flux lm means that the higher brightness Lux can be output, the two are equivalent at the moment, and the connection between the two is not specifically shown, but the design scheme has determined that the color temperature CCT and the color change index CCI can not be adjusted under the condition that the lamp outputs a white light mode, and the CCT and the CCI can only be adjusted by increasing CTO color chips or CMY color chips in order to meet the requirements of various application scenes, and the current CTO color chips or CMY color chips have better light transmittance of less than 70%, and the high cost loss of the CTO color chips is high, and the color chips are produced continuously and the color chips are poor in a huge price. Meanwhile, the scheme is easy to be subjected to the change of parameters such as lamp foot temperature, luminous angle, lamp brightness and the like to generate CCI, CCT, ra, R parameter change, and the CCT and CCI cannot be adjusted in real time through the design scheme, so that the stage light effect is changed at the moment under the condition of the same programming scheme, and the customer satisfaction is poor.
Second kind:
The design scheme is that the whole machine totally uses RGB+white light lamp beads according to 1:1 (also can be RGB+white light four-in-one lamp bead), the advantage of this scheme is that can realize the arbitrary color combination through the software, and then realize high color rendering index Ra and high red color rendering index R9, the color temperature CCT is adjustable, the demand that color variation index CCI is adjustable at the same time, but because RGB lamp bead has shared the LED lamp bead power of complete machine therein, lead to under the condition of the same complete machine power level, the white light lamp bead power duty ratio is reduced, lead to complete machine luminous flux lm to become low (supplement to states: green light G can account for 80% of white light luminous flux lm, red light R can account for 40% of white light luminous flux lm, blue light B can account for 15% of white light luminous flux lm under the same power condition), compared with the first scheme, the luminous flux loss of the second scheme will reach more than 40%, therefore can't meet the demand that the stage lamps and lanterns are increasingly high in brightness under the same complete machine power condition.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a lamp bead array with high brightness and CCI, HUE, CTO, CTB adjustable at the same time, which realizes the design scheme that the color change index (Color ContributionIndex CCI), the HUE (HUE HUE) and the color temperature correction (Color Temperature OrangeCTO, color Temperature Blue CTB) are adjustable, and meanwhile, the brightness of white light cannot be lost because of the parameter adjustable functions such as the support CCI, HUE, CTO, CTB of the lamp and the like, so as to meet the requirement of a stage on the increasingly improved lighting effect.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The lamp bead array with high brightness and adjustable CCI, HUE, CTO, CTB is provided with an LED lamp panel, wherein white LED lamp beads and a plurality of other color lamp beads are arranged on the LED lamp panel in a mixing way, the number of the white LED lamp beads accounts for more than 75% of the total number of the lamp beads, and the sum of the number of the other color lamp beads accounts for within 25% of the total number of the lamp beads; the other color beads are symmetrically distributed in the same color, and the colors are alternately arranged in turn; the white LED lamp beads are uniformly distributed around the other color lamp beads, and the lamp beads are combined to form the lamp bead array.
It should be noted that the plurality of other color beads at least include green light LED beads or blue light LED beads or red light LED beads or yellow light LED beads or grass green light LED beads.
In order to exert the advantages of the invention to a greater extent, the invention also provides a control method of a lamp bead array with high brightness and simultaneously CCI, HUE, CTO, CTB adjustable, which comprises the following steps:
s1, obtaining different setting states of a lamp, wherein the different setting states at least comprise a plurality of parameters including brightness, irradiation angle, zoom, focusing and temperature of key temperature measuring points of a lamp panel;
S2, adjusting the optimal matching parameters of the lamp by utilizing the parameters obtained in the step S1;
S3, obtaining different adjusting coefficients Fx, obtaining the relation between the adjusting coefficients Fx and parameters such as temperature, brightness, irradiation angle, scaling, focusing and the like in a curve fitting mode of experimental data, and gradually fitting a curve by using a control algorithm;
S4, finally, the requirements of a plurality of optical parameters of target illuminance change of +/-1% Lux and color temperature change of +/-50K are met, and after adjustment, the error of important parameters is ensured to be smaller than the range of +/-1%.
It should be noted that, by detecting the lamp pin temperature T, the lamp lighting angle X, the brightness L, the zoom Z, the focusing F and a plurality of parameter changes of other factors y, fitting curves FW (T, X, L, Z, F), FR (T, X, L, Z, F), FG (T, X, L, Z, F), FB (T, X, L, Z, F) are combined.
It should be noted that, when the lamp foot temperature T, the lamp lighting angle X, the brightness L, the zoom Z, and the focus F are changed, the change influence curves of the parameters of the whole spot color temperature CCT, the illuminance Lux, the color change index CCI, the color development index Ra, and the red color development index R9 are obtained through multiple tests, and according to the change curve relationship, the compensation fitting curve FW (T, X, L, Z, F), FR (T, X, L, Z, F), FG (T, X, L, Z, F), FB (T, X, L, Z, F) are finally obtained, and then the corresponding parameters of the white light, red light, green light, and blue light are respectively compensated according to the parameters of the fitting curve FW/FR/FG/FB, and when any temperature, any angle, any brightness adjustment is finally realized, the parameters of CCI, HUE, CTO, CTB are constant, or CCI, HUE, CTO, CTB are adjusted.
The CCI parameter adjustment range was 0.2M-0.6G, the HUE parameter adjustment range was 0.2M-0.6G, and the CTO/CTB parameter adjustment range was 5000-7000K.
It should be noted that, the method of the present invention further includes:
a, under the condition that other color lamp beads do not work, fixing a test distance and a spot diameter, and testing to obtain optical data of an original lamp which is independently lighted by a white light LED, wherein main parameters are illuminance, color rendering index, color temperature, CCI and DUV;
b, under the condition that other color lamp beads do not work, fixing a test distance according to the step a, and sequentially carrying out tests according to the set values of a plurality of parameters of temperature T, brightness L, focusing F and zooming Z by using a single variable method, wherein:
the test adjustment range of the temperature T is 30-80 degrees, and 1 data is tested every 5 degrees;
the test adjustment range of the brightness L is 0-255, and 1 data is tested every 5 values;
The test adjusting range of the zoom Z is 0-255, and 1 data is tested every 5 values, wherein the focusing F is adjusted by matching with the change of the zoom Z, so that the imaging of the light spots is ensured to be clear;
Finally, obtaining original lamp optical data of a lamp, which changes along with a plurality of parameters of temperature T, brightness L, focusing F and zooming Z when the white light LED is independently lightened, wherein the parameters recorded by main test are illuminance Lux, color rendering index Ra, red color rendering index R9, color temperature, CCI and DUV; repeatedly switching a single variable to obtain a large amount of experimental related data;
c, based on the test data in the step b, taking the parameters of illuminance Lux, color rendering index Ra, red color rendering index R9, color temperature, CCI and DUV tested under the conditions that the white light LED is independently lightened and the detection temperature is 70 ℃ as references;
d, analyzing the data in the step b and the step c, and performing multi-element curve fitting to obtain mathematical relations between the target light parameters, the setting parameters and the environmental parameter changes;
e, adopting test approximation calculation for the step d, and approximating the mathematical relationship of the step d by using a software table look-up method if necessary, so as to respectively obtain parameters of the white light LED when the white light LED is independently lighted and compensation functions of red light, green light and blue light of other color lamp beads, and carrying out parameter compensation and correction under different environment temperatures under different parameter settings;
f, obtaining different settings of other color lamp beads through approximate fitting curves under different parameter settings and different environmental temperatures according to current parameters and temperature parameters, effectively improving the color rendering index of the white light, and simultaneously ensuring that other main optical parameters such as illuminance and color temperature are unchanged except the color rendering index, wherein the error of the optical parameters is not more than 1% under the condition of compensation adjustment;
And g, after the test experimental schemes of the steps a to e are tested through a plurality of tests, which ensure that a single variable is changed and other variables are constant, and data are integrated, a curve fitting mode is adopted to find fitting curves FW (T, X, L, z, f), FR (T, X, L, z, f) and FG (T, X, L, z, f) of white light beads and other color beads, and FB (T, X, L, z, f) are used, and the fitting curves are referred to simulate an algorithm approaching the fitting curves, and according to the measured temperature values and the values of other set variables, the fitting curve algorithm is combined to respectively and rapidly calculate compensation parameters of corrected white light, red light, green light and blue light, so that white light output of the lamp is ensured to be in different environments and different settings within the range of target requirements.
It should be noted that, step b further includes:
b1, sequentially compensating the luminance Lux, the color rendering index Ra, the red color rendering index R9, the color temperature, the CCI and the DUV data according to the temperature T, the focusing F and the scaling Z under the condition of a plurality of parameter changes, and adjusting the brightness parameters of red light, green light and blue light of other color lamp beads to ensure that the light parameter of the whole machine reaches a light parameter target value measured under the environment of 70 ℃, namely, the Ra is required to be kept to be more than or equal to 95; r9 is more than or equal to 95; simultaneously meeting CCT (+ -50K); CCI (0.1G-0.2G); requirements in the range of variation of optical parameters of Lux (+ -1%);
b2, compensating according to the color rendering index Ra, the red color rendering index R9, the color temperature, the CCI and the DUV data measured under the parameter change condition of the brightness L in sequence by adjusting the brightness parameters of red light, green light and blue light of other color lamp beads, so that the light parameter of the whole machine reaches the light parameter target value measured under the environment of 70 ℃, namely, the Ra is required to be kept to be more than or equal to 95; r9 is more than or equal to 95; simultaneously meeting CCT (+ -50K); requirements in the variation range of CCI (0.1G-0.2G).
The invention has the beneficial effects that:
1. Under the condition that the power of the whole machine is unchanged, the brightness Lux is obviously improved, meanwhile, the lamp bead array with the adjustable CCI, HUE, CTO, CTB is arranged, the design can realize the output meeting the high brightness Lux, meanwhile, the lamp bead array with the adjustable CCI, HUE, CTO, CTB has the high color rendering index Ra and the high red color rendering index R9, meanwhile, the color temperature CCT is adjustable, the color change index CCI is novel in conception and reasonable in design, the lamp bead array is convenient to use, and the synthetic light outputting the higher brightness Lux is realized on the basis of taking CCI, HUE, CTO, CTB into consideration.
2. Under the condition that the power of the whole lamp is unchanged, the lamp has a CCI adjustable function (the color change index is adjustable, under the condition that the high color rendering index Ra and the high red color rendering index R9 are ensured, and meanwhile, the color temperature is unchanged, the effect that the CCI can be controlled according to the requirement is realized by compensating white light through auxiliary light such as red light, green light, blue light and the like), the main light source of the lamp is white light, the white light is additionally compensated through auxiliary light such as red light, green light, blue light and the like, the CCI is adjustable and can be constant, and the requirements of different application scenes on the light spots on redness and greenness are met.
3. Under the condition that the power of the whole machine is unchanged, the fluorescent lamp has the HUE adjustable function (chromaticity adjustment, CCI parameter adjustment, and realization of reddish greenish effect), the main light source of the lamp is white light, and the white light is additionally compensated by auxiliary light such as red light, green light, blue light and the like, so that the CCI is adjustable, and the requirement of various scenes on the light path is met.
4. Under the condition of unchanged power of the whole machine, the CTB-adjustable color temperature regulator has CTB-adjustable function (cold color temperature regulation, constant CCI, changing color temperature): the main light source of the lamp is white light, the white light is additionally compensated by auxiliary light such as red light, green light, blue light and the like, CCI is kept unchanged, and the color temperature variation range is adjusted so as to meet the requirements of various use scenes on the light path.
5. Under the condition that the power of the whole machine is unchanged, the device has the CTO adjustable function (warm color temperature adjustment, and adjustable spot color temperature by adjusting the parameter proportion of red light, green light and blue light): the main light source of the lamp is white light, the white light is additionally compensated by auxiliary light such as red light, green light, blue light and the like, and the color temperature range is adjustable under the condition of ensuring that CCI, ra and R9 parameters are unchanged so as to meet the requirements of various scenes on light paths.
Drawings
FIG. 1 is a schematic diagram of a layout structure of an LED lamp set according to the present invention;
FIG. 2 is a schematic diagram of a layout structure of 3 LED lamp sets according to the present invention;
fig. 3 is example 1 of the present invention: 109 LEDs are arranged to form a layout structure schematic diagram of the colored lamp beads in the figure 1, wherein the total ratio of the colored lamp beads is 0.9%;
fig. 4 is example 2 of the present invention: 109 LEDs are arranged to form a layout structure schematic diagram of the colored lamp beads of the figure 3, wherein the total ratio of the colored lamp beads is 2.7%;
fig. 5 is example 3 of the present invention: 109 LED arrangement patterns 1 x 4 in 1 color lamp beads, wherein the total ratio of the color lamp beads is 3.6 percent;
Fig. 6 is an embodiment 4 of the present invention: 109 LEDs are arranged to form the color beads of the figure 4, and the total ratio of the color beads is 3.7 percent;
fig. 7 is an embodiment 5 of the present invention: 109 LEDs are arranged to form the color beads of FIG. 6, and the total ratio of the color beads is 5.5 percent;
Fig. 8 is an embodiment 6 of the present invention: 68 LEDs are arranged to form the color lamp beads of the figure 4, and the total ratio of the color lamp beads is 5.9 percent;
fig. 9 is a diagram of embodiment 7 of the present invention: 109 LEDs are arranged to form the color beads of the figure 7, and the total ratio of the color beads is 6.4 percent;
Fig. 10 is an embodiment 8 of the present invention: 109 LEDs are arranged to form a schematic diagram of another layout structure with the color beads of FIG. 9 accounting for 8.2 percent of the total weight of the color beads;
fig. 11 is a diagram of embodiment 9 of the present invention: 68 LEDs are arranged to form the color lamp beads of the figure 6, and the total ratio of the color lamp beads is 8.8 percent;
fig. 12 shows embodiment 10 of the present invention: 109 LEDs are arranged to form 10 colored beads, and the total ratio of the colored beads is 9.2% or more;
fig. 13 is an embodiment 11 of the present invention: 109 LED arrangement patterns 3 x 4 in 1 color beads, wherein the total ratio of the color beads is 10.2 percent;
fig. 14 shows embodiment 12 of the present invention: 109 LEDs are arranged to form 12 colored beads, and the total ratio of the colored beads is 11 percent.
Fig. 15 is a diagram of example 13 of the present invention: 109 LED arrangement patterns are shown as a schematic diagram of another arrangement structure with 4x 4 in 1 color beads, wherein the total ratio of the color beads is 13.2 percent.
Fig. 16 is a diagram of embodiment 14 of the present invention: 109 LED arrangement patterns 6 x 4 in 1 color beads, and the total color beads accounts for 18.9% of the other arrangement structure schematic diagram.
Fig. 17 is a diagram of embodiment 15 of the present invention: 68 LEDs are arranged to form the color lamp beads of the figure 4, and the total ratio of the color lamp beads is 20 percent.
Fig. 18 is a diagram of embodiment 16 of the present invention: 109 LED arrangement patterns 7 x 4 in 1 color beads, and the total ratio of the color beads is 21.5 percent.
Fig. 19 is an example 17 of the present invention: 109 LEDs the color beads of FIG. 6 were arranged, and another layout structure of the variant of example 5 is schematically shown.
Fig. 20 is an embodiment 18 of the present invention: 109 LEDs are arranged to form a4 x 4 in 1 colored bead, and another layout structure of a variation of example 13 is shown.
Fig. 21 is an example 19 of the present invention: 109 LEDs are arranged to form 3×4 in 1 colored beads, and another layout structure of the variant of example 11 is schematically shown.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the following examples give detailed embodiments and specific operation procedures on the premise of the present technical solution, but the scope of the present invention is not limited to the examples.
The invention relates to a high-brightness lamp bead array with adjustable CCI, HUE, CTO, CTB at the same time, which is provided with an LED lamp panel, wherein white LED lamp beads and a plurality of other color lamp beads are arranged on the LED lamp panel in a mixed mode, the number of the white LED lamp beads accounts for more than 75% of the total number of the lamp beads, and the sum of the number of the other color lamp beads accounts for within 25% of the total number of the lamp beads; the other color beads are symmetrically distributed in the same color, and the colors are alternately arranged in turn; the white LED lamp beads are uniformly distributed around the other color lamp beads, and the lamp beads are combined to form the lamp bead array.
Further, the other color beads of the present invention at least include green light LED beads or blue light LED beads or red light LED beads or yellow light LED beads or grass green light LED beads.
As shown in fig. 1, the invention provides a high-brightness lamp bead array with adjustable CCI, HUE, CTO, CTB at the same time, which comprises a light source cavity for arranging a light emitting component, wherein a light transmitting hole for outward irradiation is arranged on the light source cavity, an LED lamp panel 1 for emitting light is arranged in the light source cavity, a first LED lamp group 2 and a second LED lamp group 3 are arranged on the LED lamp panel 1, and the second LED lamp group 3 is distributed around the first LED lamp group 2, wherein the first LED lamp group 2 is positioned in the central area of the lamp panel 1.
Further, as shown in fig. 1, the first LED lamp set 2 of the present invention includes 1 green LED lamp bead, 3 red LED lamp beads, and 3 blue LED lamp beads, where the green LED lamp bead is used as a center, and the red LED lamp bead and the blue LED lamp bead are disposed around the green LED lamp bead.
Further, as shown in fig. 1, the second LED lamp set 3 of the present invention is composed of a plurality of white LED lamp beads.
Further, the total number of the white light LED lamp beads is 102.
As shown in fig. 2, the present invention further provides another scheme of a lamp bead array with high brightness and adjustable CCI, HUE, CTO, CTB, which comprises a light source cavity for setting a light emitting component, light holes for outward irradiation are arranged on the light source cavity, an LED lamp panel 1 for emitting light is arranged in the light source cavity, a first LED lamp set 2, a second LED lamp set 3 and a third LED lamp set 4 are arranged on the LED lamp panel 1, wherein the first LED lamp set 2 is located in a central area of the lamp panel 1, the second LED lamp set 3 is distributed around the first LED lamp set 2, and the third LED lamp set 4 is distributed around the second LED lamp set 3.
Further, as shown in fig. 2, the first LED lamp set 2 of the present invention is 1 yellow LED lamp bead, and the second LED lamp set 3 is distributed around the yellow LED lamp bead.
Further, as shown in fig. 2, the second LED lamp set 3 of the present invention includes 2 red LED lamp beads, 2 green LED lamp beads, and 2 blue LED lamp beads; wherein, the LED lamp beads of same colour type are distributed in diagonal.
Further, as shown in fig. 2, the third LED lamp set 4 of the present invention is composed of a plurality of white LED lamp beads.
Further, the total number of the white light LED lamp beads is 102.
As a control of the present invention, the present invention further provides a method for controlling a lamp bead array with high brightness and CCI, HUE, CTO, CTB adjustable at the same time, the method comprising:
s1, obtaining different setting states of a lamp, wherein the different setting states at least comprise a plurality of parameters including brightness, irradiation angle, zoom, focusing and temperature of key temperature measuring points of a lamp panel;
S2, adjusting the optimal matching parameters of the lamp by utilizing the parameters obtained in the step S1;
S3, obtaining different adjusting coefficients Fx, obtaining the relation between the adjusting coefficients Fx and parameters such as temperature, brightness, irradiation angle, scaling, focusing and the like in a curve fitting mode of experimental data, and gradually fitting a curve by using a control algorithm;
S4, finally, the requirements of a plurality of optical parameters of target illuminance change of +/-1% Lux and color temperature change of +/-50K are met, and after adjustment, the error of important parameters is ensured to be smaller than the range of +/-1%.
It should be noted that, by detecting the lamp pin temperature T, the lamp lighting angle X, the brightness L, the zoom Z, the focusing F and a plurality of parameter changes of other factors y, fitting curves FW (T, X, L, Z, F), FR (T, X, L, Z, F), FG (T, X, L, Z, F), FB (T, X, L, Z, F) are combined.
It should be noted that, when the lamp foot temperature T, the lamp lighting angle X, the brightness L, the zoom Z, and the focus F are changed, the change influence curves of the parameters of the whole spot color temperature CCT, the illuminance Lux, the color change index CCI, the color development index Ra, and the red color development index R9 are obtained through multiple tests, and according to the change curve relationship, the compensation fitting curve FW (T, X, L, Z, F), FR (T, X, L, Z, F), FG (T, X, L, Z, F), FB (T, X, L, Z, F) are finally obtained, and then the corresponding parameters of the white light, red light, green light, and blue light are respectively compensated according to the parameters of the fitting curve FW/FR/FG/FB, and when any temperature, any angle, any brightness adjustment is finally realized, the parameters of CCI, HUE, CTO, CTB are constant, or CCI, HUE, CTO, CTB are adjusted.
The CCI parameter adjustment range was 0.2M-0.6G, the HUE parameter adjustment range was 0.2M-0.6G, and the CTO/CTB parameter adjustment range was 5000-7000K.
It should be noted that, the method of the present invention further includes:
a, under the condition that other color lamp beads do not work, fixing a test distance and a spot diameter, and testing to obtain optical data of an original lamp which is independently lighted by a white light LED, wherein main parameters are illuminance, color rendering index, color temperature, CCI and DUV;
b, under the condition that other color lamp beads do not work, fixing a test distance according to the step a, and sequentially carrying out tests according to the set values of a plurality of parameters of temperature T, brightness L, focusing F and zooming Z by using a single variable method, wherein:
the test adjustment range of the temperature T is 30-80 degrees, and 1 data is tested every 5 degrees;
the test adjustment range of the brightness L is 0-255, and 1 data is tested every 5 values;
The test adjusting range of the zoom Z is 0-255, and 1 data is tested every 5 values, wherein the focusing F is adjusted by matching with the change of the zoom Z, so that the imaging of the light spots is ensured to be clear;
Finally, obtaining original lamp optical data of a lamp, which changes along with a plurality of parameters of temperature T, brightness L, focusing F and zooming Z when the white light LED is independently lightened, wherein the parameters recorded by main test are illuminance Lux, color rendering index Ra, red color rendering index R9, color temperature, CCI and DUV; repeatedly switching a single variable to obtain a large amount of experimental related data;
c, based on the test data in the step b, taking the parameters of illuminance Lux, color rendering index Ra, red color rendering index R9, color temperature, CCI and DUV tested under the conditions that the white light LED is independently lightened and the detection temperature is 70 ℃ as references;
d, analyzing the data in the step b and the step c, and performing multi-element curve fitting to obtain mathematical relations between the target light parameters, the setting parameters and the environmental parameter changes;
e, adopting test approximation calculation for the step d, and approximating the mathematical relationship of the step d by using a software table look-up method if necessary, so as to respectively obtain parameters of the white light LED when the white light LED is independently lighted and compensation functions of red light, green light and blue light of other color lamp beads, and carrying out parameter compensation and correction under different environment temperatures under different parameter settings;
f, obtaining different settings of other color lamp beads through approximate fitting curves under different parameter settings and different environmental temperatures according to current parameters and temperature parameters, effectively improving the color rendering index of the white light, and simultaneously ensuring that other main optical parameters such as illuminance and color temperature are unchanged except the color rendering index, wherein the error of the optical parameters is not more than 1% under the condition of compensation adjustment;
And g, after the test experimental schemes of the steps a to e are tested through a plurality of tests, which ensure that a single variable is changed and other variables are constant, and data are integrated, a curve fitting mode is adopted to find fitting curves FW (T, X, L, z, f), FR (T, X, L, z, f) and FG (T, X, L, z, f) of white light beads and other color beads, and FB (T, X, L, z, f) are used, and the fitting curves are referred to simulate an algorithm approaching the fitting curves, and according to the measured temperature values and the values of other set variables, the fitting curve algorithm is combined to respectively and rapidly calculate compensation parameters of corrected white light, red light, green light and blue light, so that white light output of the lamp is ensured to be in different environments and different settings within the range of target requirements.
It should be noted that, step b further includes:
b1, sequentially compensating the luminance Lux, the color rendering index Ra, the red color rendering index R9, the color temperature, the CCI and the DUV data according to the temperature T, the focusing F and the scaling Z under the condition of a plurality of parameter changes, and adjusting the brightness parameters of red light, green light and blue light of other color lamp beads to ensure that the light parameter of the whole machine reaches a light parameter target value measured under the environment of 70 ℃, namely, the Ra is required to be kept to be more than or equal to 95; r9 is more than or equal to 95; simultaneously meeting CCT (+ -50K); CCI (0.1G-0.2G); requirements in the range of variation of optical parameters of Lux (+ -1%);
b2, compensating according to the color rendering index Ra, the red color rendering index R9, the color temperature, the CCI and the DUV data measured under the parameter change condition of the brightness L in sequence by adjusting the brightness parameters of red light, green light and blue light of other color lamp beads, so that the light parameter of the whole machine reaches the light parameter target value measured under the environment of 70 ℃, namely, the Ra is required to be kept to be more than or equal to 95; r9 is more than or equal to 95; simultaneously meeting CCT (+ -50K); requirements in the variation range of CCI (0.1G-0.2G).
Next, as an improvement of the layout of the LED lamp group of the present invention, the present invention also provides the layout patterns in embodiment 1 to embodiment 19. The general principle is that the LED lamp beads with colors are arranged in one group, and the white LED lamp beads are arranged in the other group, and the layout mode is that the white LED lamp beads are distributed around the LED lamp beads with colors.
In some embodiments, the colored LED beads are set in one group and the white LED beads are set in another group, but in the layout, the white LED beads may be disposed in the central area of the lamp panel, and the colored LED beads are disposed around the white LED beads in the central area.
In some embodiments, the LED beads with different colors are manufactured as an integrated multi-in-one hybrid bead, that is, one hybrid bead has red, green, blue, etc. beads at the same time, and in such embodiments, the layout can be referred to embodiment 3, embodiment 11, embodiment 13, embodiment 14, embodiment 16, embodiment 18, embodiment 19.
Finally, it is intended that all such modifications and variations are included within the scope of the present invention, as defined by the appended claims, and that all such modifications and variations are within the scope of the present invention, e.g., the ratio of different colored beads, the arrangement of the beads, and the power of the beads.
Claims (5)
1. A method for controlling a high brightness simultaneously CCI, HUE, CTO, CTB adjustable lamp bead array, the method comprising:
S1, obtaining different setting states of a lamp, wherein the different setting states at least comprise a plurality of parameters including brightness, irradiation angle, zoom, focusing and temperature of key temperature measuring points of a lamp panel;
s2, adjusting the optimal matching parameters of the lamp by utilizing the parameters obtained in the step S1;
S3, obtaining different adjusting coefficients Fx, obtaining the relation between the adjusting coefficients Fx and parameters of temperature, brightness, irradiation angle, scaling and focusing through a curve fitting mode of experimental data, and gradually fitting a curve by using a control algorithm;
S4, finally, the requirements of a plurality of optical parameters of target illuminance change of +/-1% Lux and color temperature change of +/-50K are met, and after adjustment, the error of important parameters is ensured to be smaller than the range of +/-1%;
The method comprises the steps of respectively obtaining a plurality of parameters of white light, red light, green light and blue light through a plurality of tests, when the lamp foot temperature T, the lamp lighting angle X, the brightness L, the scaling Z and the focusing F are changed, changing influence curves of parameters of the whole light spot color temperature CCT, the illuminance Lux, the color changing index CCI, the color developing index Ra and the red color developing index R9 are obtained, finally obtaining fitting curves FW (T, X, L, Z, F), FR (T, X, L, Z, F), FG (T, X, L, Z, F) and FB (T, X, L, Z, F) according to the changing curve relation, respectively compensating corresponding parameters of white light, red light, green light and blue light according to the parameters of the fitting curves FW/FR/FG/FB, and finally realizing constant parameters of CCI, HUE, CTO, CTB or adjusting parameters of CCI, HUE, CTO, CTB when adjusting any temperature, any angle and any brightness;
Further comprises:
a, under the condition that other color lamp beads do not work, fixing a test distance and a spot diameter, and testing to obtain optical data of an original lamp which is independently lighted by a white light LED, wherein main parameters are illuminance, color rendering index, color temperature, CCI and DUV;
b, under the condition that other color lamp beads do not work, fixing a test distance according to the step a, and sequentially carrying out tests according to the set values of a plurality of parameters of temperature T, brightness L, focusing F and zooming Z by using a single variable method, wherein:
the test adjustment range of the temperature T is 30-80 degrees, and 1 data is tested every 5 degrees;
the test adjustment range of the brightness L is 0-255, and 1 data is tested every 5 values;
the test adjusting range of the zoom Z is 0-255, and 1 data is tested every 5 values, wherein the focusing F is adjusted by matching with the change of the zoom Z, so that the imaging of the light spots is ensured to be clear;
Finally, obtaining original lamp optical data of a lamp, which changes along with a plurality of parameters of temperature T, brightness L, focusing F and zooming Z when the white light LED is independently lightened, wherein the parameters recorded by main test are illuminance Lux, color rendering index Ra, red color rendering index R9, color temperature, CCI and DUV; repeatedly switching a single variable to obtain a large amount of experimental related data;
c, based on the test data in the step b, taking the parameters of illuminance Lux, color rendering index Ra, red color rendering index R9, color temperature, CCI and DUV tested under the conditions that the white light LED is independently lightened and the detection temperature is 70 ℃ as references;
d, analyzing the data in the step b and the step c, and performing multi-element curve fitting to obtain mathematical relations between the target light parameters, the setting parameters and the environmental parameter changes;
e, adopting test approximation calculation for the step d, and approximating the mathematical relationship of the step d by using a software table lookup method to respectively obtain parameters of the white light LED when the white light LED is independently lighted and compensation functions of red light, green light and blue light of other color lamp beads, wherein the parameters are used for carrying out parameter compensation and correction under different environment temperatures under different parameter settings;
f, obtaining different settings of other color lamp beads through approximate fitting curves under different parameter settings and different environmental temperatures according to current parameters and temperature parameters, effectively improving the color rendering index of the white light, and simultaneously ensuring that other main optical parameters such as illuminance and color temperature are unchanged except the color rendering index, wherein the error of the optical parameters is not more than 1% under the condition of compensation adjustment;
g, after the test experiment schemes of steps a to e are tested through a plurality of tests, which ensure that a single variable is changed and other variables are constant, and data are integrated, a curve fitting mode is adopted to find fitting curves FW (T, X, L, z, f), FR (T, X, L, z, f) and FG (T, X, L, z, f) of white light beads and other color beads, and FB (T, X, L, z, f) are used, and the fitting curves are referred to, an algorithm approaching the fitting curves is simulated, and corrected white light, red light, green light and blue light compensation parameters are respectively calculated by combining the fitting curve algorithm according to measured temperature values and values of other set variables, so that white light output of the lamp is ensured to be in a range of target requirements under different environments and different settings;
Wherein step b further comprises:
b1 Sequentially according to the brightness Lux, the color rendering index Ra, the red color rendering index R9, the color temperature, the CCI and the DUV data measured under the condition of a plurality of parameter changes of temperature T, focusing F and zooming Z, the brightness parameters of red light, green light and blue light of other color lamp beads are regulated to compensate, so that the light parameters of the whole machine reach the light parameter target values measured under the environment of 70 ℃, namely Ra is more than or equal to 95, R9 is more than or equal to 95, and simultaneously the requirements of CCT (+ -50K), CCI (0.1G-0.2G) and Lux (+ -1%) in the light parameter change range are met;
b2 According to the color rendering index Ra, the red color rendering index R9, the color temperature, the CCI and the DUV data which are measured under the parameter change condition of the brightness L, the brightness parameters of red light, green light and blue light of other color lamp beads are regulated to compensate, so that the light parameters of the whole machine reach the light parameter target value which is measured under the environment of 70 degrees, namely Ra is more than or equal to 95, R9 is more than or equal to 95, and meanwhile, the requirements of CCT (+ -50K) and CCI (0.1G-0.2G) in the change range are met.
2. The method of claim 1, wherein the fitting curves FW (T, X, L, Z, F), FR (T, X, L, Z, F), FG (T, X, L, Z, F), FB (T, X, L, Z, F) are combined by detecting the lamp pin temperature T, the lamp lighting angle X, the brightness L, the zoom Z, the focus F, and a plurality of parameter variations of other factors y.
3. The method of claim 1, wherein the CCI parameter is adjusted to a range of 0.2M to 0.6g, the hue parameter is adjusted to a range of 0.2M to 0.6g, and the cto/CTB parameter is adjusted to a range of 5000K to 7000K.
4. A lamp bead array capable of realizing high brightness and CCI, HUE, CTO, CTB adjustable control method as claimed in claim 1, comprising an LED lamp panel, wherein white LED lamp beads and a plurality of other color lamp beads are arranged on the LED lamp panel in a mixed manner, the number of the white LED lamp beads is more than 75% of the total number of the lamp beads, and the sum of the number of the plurality of other color lamp beads is less than 25% of the total number of the lamp beads; the other color beads are symmetrically distributed in the same color, and the colors are alternately arranged in turn; the white LED lamp beads are uniformly distributed around the other color lamp beads, and the lamp beads are combined to form the lamp bead array.
5. The high brightness simultaneous CCI, HUE, CTO, CTB adjustable bead array of claim 4 wherein a plurality of the other color beads comprise at least green LED beads or blue LED beads or red LED beads or yellow LED beads or grass green LED beads.
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| CN115915529A (en) * | 2021-09-30 | 2023-04-04 | 赛万特科技有限责任公司 | Light emission control method, light emission control device, and light emission device |
| CN115150987A (en) * | 2022-06-09 | 2022-10-04 | 深圳市帝狼光电有限公司 | High-color-rendering-index high-spectrum LED device and manufacturing method thereof |
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