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本发明涉及LED技术领域,具体而言,涉及一种全光谱色温可调LED及具有其的灯具。The invention relates to the technical field of LEDs, in particular to a full-spectrum color temperature adjustable LED and a lamp having the same.
背景技术Background technique
当前LED发展日新月异,人们对LED产品的需求也从简单的够亮,向智能化、健康化发展。市场上常规的LED产品蓝光危害高,显色性不佳,与太阳光谱有差距,且大多数为单一光谱,难以满足智能调节需求。即便有简单的可调色温灯具,基本采用两个色温LED产品(通常为冷白6500K和暖白2700K)调节,但是所调产品光谱蓝光峰较强、不具备全光谱,显色性不好,且经调节后部分色温不在黑体轨迹上,色容差超标,不符合行业标准与视觉健康效果。At present, the development of LED is changing with each passing day, and people's demand for LED products has also developed from simple and bright enough to intelligent and healthy development. Conventional LED products on the market have high blue light hazard, poor color rendering, and there is a gap with the solar spectrum, and most of them have a single spectrum, which is difficult to meet the needs of intelligent adjustment. Even if there are simple adjustable color temperature lamps, basically two color temperature LED products (usually cool white 6500K and warm white 2700K) are used to adjust, but the spectrum of the adjusted products has a strong blue light peak, does not have the full spectrum, and has poor color rendering. , and after adjustment, part of the color temperature is not on the black body trajectory, and the color tolerance exceeds the standard, which does not meet the industry standard and visual health effect.
发明内容SUMMARY OF THE INVENTION
本发明的主要目的在于提供一种全光谱色温可调LED及具有其的灯具,以解决现有技术中的全光谱发光器件的色温可调性不足的问题。The main purpose of the present invention is to provide a full-spectrum color temperature tunable LED and a lamp having the same, so as to solve the problem of insufficient color temperature tunability of the full-spectrum light-emitting device in the prior art.
为了实现上述目的,根据本发明的一个方面,提供了一种全光谱色温可调LED,其在色温大于等于2200K且小于5000K时,全光谱色温可调LED的发射光谱在530~830nm具有至少一个波峰,且在380nm~530nm的最高峰强度≤530nm~830nm的最高峰强度,且色温越低两个最高峰强度的差值越大;在色温≥5000K时,全光谱色温可调LED的发射光谱在380nm~530nm具有至少一个波峰;在530nm~830nm的最高峰强度≤380nm~530nm的最高峰强度,且色温越低两个最高峰强度的差值越小;在380nm~480nm之间具有至少两个波峰。In order to achieve the above object, according to one aspect of the present invention, a full-spectrum color temperature tunable LED is provided, when the color temperature is greater than or equal to 2200K and less than 5000K, the emission spectrum of the full-spectrum color temperature tunable LED has at least one emission spectrum between 530 and 830 nm. Wave peak, and the highest peak intensity at 380nm~530nm is ≤530nm~830nm peak intensity, and the lower the color temperature, the greater the difference between the two highest peak intensities; when the color temperature is ≥5000K, the emission spectrum of the full-spectrum color temperature adjustable LED There is at least one peak at 380nm-530nm; the highest peak intensity at 530nm-830nm is less than or equal to the highest peak intensity at 380nm-530nm, and the lower the color temperature, the smaller the difference between the two highest peak intensities; there are at least two peaks between 380nm and 480nm. a wave peak.
进一步地,在色温≥5000K时,全光谱色温可调LED的发射光谱的380nm~480nm之间,至少两个波峰中任意相邻的两个波峰之间的凹谷最低点与波峰最高点的强度比≥0.5/1。Further, when the color temperature is ≥5000K, the emission spectrum of the full-spectrum color temperature adjustable LED is between 380nm and 480nm, and the intensity of the lowest point of the valley and the highest point of the peak between any two adjacent peaks in at least two peaks ratio ≥ 0.5/1.
进一步地,全光谱色温可调LED包括:发射第一光谱的第一光源,第一光谱在400~480nm至少存在一个波峰,且第一光谱波峰的半波宽≥15nm;发射第二光谱的第二光源,第二光谱在580~830nm至少存在一个波峰,且第二光谱波峰的半波宽≥15nm;发射第三光谱的第三光源,第三光谱在480~680nm至少存在一个波峰,且第三光谱波峰的半波宽≥15nm;且第一光谱的强度、第二光谱的强度和第三光谱的强度之比为0.02~3.50:0~11:0.05~2.50。Further, the full-spectrum color temperature adjustable LED includes: a first light source that emits a first spectrum, the first spectrum has at least one peak at 400-480 nm, and the half-wave width of the first spectrum peak is ≥15 nm; Two light sources, the second spectrum has at least one peak at 580-830 nm, and the half-wave width of the second spectral peak is ≥15 nm; the third light source that emits the third spectrum, the third spectrum has at least one peak at 480-680 nm, and the third light source The half-wave widths of the three spectral peaks are greater than or equal to 15 nm; and the ratio of the intensity of the first spectrum, the intensity of the second spectrum and the intensity of the third spectrum is 0.02-3.50:0-11:0.05-2.50.
进一步地,全光谱色温可调LED还包括:发射第四光谱的第四光源,第四光谱在460~520nm至少存在一个波峰,且第四光谱波峰的半波宽≥15nm;且第一光谱的强度和第四光谱的强度之比为0.02~3.50:0~0.80。Further, the full-spectrum color temperature adjustable LED further includes: a fourth light source that emits a fourth spectrum, the fourth spectrum has at least one peak at 460-520 nm, and the half-wave width of the fourth spectrum peak is ≥15 nm; The ratio of the intensity to the intensity of the fourth spectrum is 0.02 to 3.50:0 to 0.80.
进一步地,第一光谱存在至少两个波峰,第一光谱的至少两个波峰的最高峰值偏差在±5%范围内,且至少两个第一光谱波峰的半峰宽分别为50~70nm,第一光源的显色指数Ra≥85,色温≥6500K。Further, there are at least two peaks in the first spectrum, the highest peak deviation of the at least two peaks in the first spectrum is within a range of ±5%, and the half-peak widths of the at least two peaks in the first spectrum are respectively 50-70 nm. The color rendering index Ra of a light source is ≥ 85, and the color temperature is ≥ 6500K.
进一步地,第一光谱在480~800nm段存在最高峰,且第一光谱的400~480nm段最高峰值/第一光谱的480~800nm段最高峰值≤0.7:1。Further, the first spectrum has the highest peak in the 480-800 nm segment, and the highest peak in the 400-480 nm segment of the first spectrum/the highest peak in the 480-800 nm segment of the first spectrum≤0.7:1.
进一步地,第二光谱的峰值波长在605nm~830nm之间,第二光谱波峰的半波宽在90~130nm之间,第二光源的显色指数Ra≥87,色温≤2200K;和/或,第三光谱的峰值波长在520nm~680nm之间,第三光谱具有一个波峰,第三光谱波峰的半波宽为120~140nm,第三光源的显色指数Ra≥60;和/或,第四光谱波峰的峰值波长在470nm~520nm之间,第四光谱波峰的半波宽为30~120nm。Further, the peak wavelength of the second spectrum is between 605nm and 830nm, the half-wave width of the second spectrum peak is between 90 and 130nm, the color rendering index Ra of the second light source is Ra≥87, and the color temperature is less than or equal to 2200K; and/or, The peak wavelength of the third spectrum is between 520 nm and 680 nm, the third spectrum has one peak, the half-wave width of the third spectrum peak is 120 to 140 nm, and the color rendering index Ra of the third light source is Ra≥60; and/or, the fourth The peak wavelength of the spectral peak is between 470 nm and 520 nm, and the half-wave width of the fourth spectral peak is 30 to 120 nm.
进一步地,第一光源包括第一芯片和第一荧光粉,第一芯片为紫光芯片或蓝光芯片,第一荧光粉包括:第一蓝色荧光粉,第一蓝色荧光粉的发射峰波长为440nm~455nm;第一黄绿色荧光粉,第一黄绿色荧光粉的发射峰波长为490nm~575nm;第一红色荧光粉,第一红色荧光粉的发射峰波长为600nm-660nm。Further, the first light source includes a first chip and a first phosphor powder, the first chip is a violet light chip or a blue light chip, the first phosphor powder includes: a first blue phosphor powder, and the emission peak wavelength of the first blue phosphor powder is 440nm~455nm; the first yellow-green phosphor powder, the emission peak wavelength of the first yellow-green phosphor powder is 490nm-575nm; the first red phosphor powder, the emission peak wavelength of the first red phosphor powder is 600nm-660nm.
进一步地,第一蓝色荧光粉选自Sr5(PO4)3Cl:Eu2+和(Sr,Ba)5(PO4)3Cl:Eu中的任一种或两种;和/或第一黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce和(Y1-x/Gax)3Al5O12:Ce、BaSi2O2N2:Eu2+中的任一种或多种;和/或第一红色荧光粉包括CaAlSiN3:Eu、SrAlSiN3:Eu、(Ca1-xSrx)AlSiN3:Eu、CaS:Eu和Ca(GeS):Eu中的任一种或多种;第一蓝色荧光粉占第一荧光粉质量比例的50%~70%,第一黄绿色荧光粉占第一荧光粉质量比例的20%~40%,第一红色荧光粉占第一荧光粉的质量比例的1%~10%。Further, the first blue phosphor is selected from any one or both of Sr5 (PO4 )3 Cl:Eu2+ and (Sr,Ba)5 (PO4 )3 Cl:Eu; and/or The first yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 :Ce and (Y1 Any one or more of-x /Gax)3 Al5 O12 :Ce,BaSi2 O2 N2 :Eu2+ ; and/or the first red phosphor includes CaAlSiN3 :Eu, SrAlSiN3 : Any one or more of Eu, (Ca1-x Srx )AlSiN3 :Eu, CaS:Eu and Ca(GeS):Eu; the first blue phosphor accounts for 50% of the mass ratio of the first phosphor ∼70%, the first yellow-green phosphor powder accounts for 20%-40% of the mass ratio of the first phosphor powder, and the first red phosphor powder accounts for 1%-10% of the mass ratio of the first phosphor powder.
进一步地,第二光源包括第二芯片和第二荧光粉,第二芯片为紫光芯片或蓝光芯片,第二荧光粉包括:第二黄绿色荧光粉,第二黄绿色荧光粉的发射峰波长为490nm~575nm;第二红色荧光粉,第二红色荧光粉的发射峰波长为600nm-660nm。Further, the second light source includes a second chip and a second phosphor powder, the second chip is a violet light chip or a blue light chip, the second phosphor powder includes: a second yellow-green phosphor powder, and the emission peak wavelength of the second yellow-green phosphor powder is 490nm~575nm; the second red phosphor, the emission peak wavelength of the second red phosphor is 600nm-660nm.
进一步地,第二黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce、(Y1-x/Gax)3Al5O12:Ce和BaSi2O2N2:Eu2+中的任一种或多种;和/或第二红色荧光粉包括CaAlSiN3:Eu、SrAlSiN3:Eu、(Ca1-xSrx)AlSiN3:Eu、CaS:Eu和Ca(GeS):Eu中的任一种或多种;第二黄绿色荧光粉占第二荧光粉质量比例的85%~98%,第二红色荧光粉占第二荧光粉质量比例的2%~15%。Further, the second yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 :Ce, Any one or more of (Y1-x/ Gax )3 Al5 O12 :Ce and BaSi2 O2 N2 :Eu2+ ; and/or the second red phosphor includes CaAlSiN3 :Eu, Any one or more of SrAlSiN3 :Eu, (Ca1-x Srx )AlSiN3 :Eu, CaS:Eu and Ca(GeS):Eu; the mass ratio of the second yellow-green phosphor to the second phosphor 85% to 98% of the second red phosphor, and the second red phosphor accounts for 2% to 15% of the mass of the second phosphor.
进一步地,第三光源包括第三芯片和第三荧光粉,第三芯片为紫光芯片或蓝光芯片,第三荧光粉包括:第三黄绿色荧光粉,第三黄绿色荧光粉的发射峰波长为520nm~575nm;第三红色荧光粉,第三红色荧光粉的发射峰波长为590nm~620nm。Further, the third light source includes a third chip and a third phosphor powder, the third chip is a violet light chip or a blue light chip, the third phosphor powder includes: a third yellow-green phosphor powder, and the emission peak wavelength of the third yellow-green phosphor powder is 520nm~575nm; the third red phosphor powder, the emission peak wavelength of the third red phosphor powder is 590nm~620nm.
进一步地,第三黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce和(Y1-x/Gax)3Al5O12:Ce中的任一种或多种;和/或第三红色荧光粉CaAlSiN3:Eu、SrAlSiN3:Eu、(Ca1-xSrx)AlSiN3:Eu、CaS:Eu和Ca(GeS):Eu中的任一种或多种;第三黄绿色荧光粉占第三荧光粉质量比例的90%~99%,第三红色荧光粉占第三荧光粉质量比例的1%~10%。Further, the third yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 :Ce and Any one or more of (Y1-x/ Gax )3 Al5 O12 :Ce; and/or the third red phosphor CaAlSiN3 :Eu, SrAlSiN3 :Eu, (Ca1-x Srx ) any one or more of AlSiN3 :Eu, CaS:Eu and Ca(GeS):Eu; the third yellow-green phosphor accounts for 90% to 99% of the mass ratio of the third phosphor, and the third red phosphor It accounts for 1% to 10% of the mass ratio of the third phosphor.
进一步地,第四光源包括第四芯片和第四荧光粉,第四芯片为紫光芯片或蓝光芯片,第四荧光粉包括:第四黄绿色荧光粉,第四黄绿色荧光粉的发射峰波长为480nm~520nm;其中,第四黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce、(Y1-x/Gax)3Al5O12:Ce和BaSi2O2N2:Eu2+中的任一种或多种。Further, the fourth light source includes a fourth chip and a fourth phosphor, the fourth chip is a violet light chip or a blue light chip, the fourth phosphor includes: a fourth yellow-green phosphor, and the emission peak wavelength of the fourth yellow-green phosphor is 480nm~520nm; wherein, the fourth yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 Any one or more of :Ce, (Y1-x/ Gax )3 Al5 O12 :Ce and BaSi2 O2 N2 :Eu2+ .
根据本发明的另一方面,还提供了一种灯具,具有光源,其为上述全光谱色温可调LED。According to another aspect of the present invention, there is also provided a lamp having a light source, which is the above-mentioned full-spectrum color temperature tunable LED.
本申请的全光谱色温可调LED虽然在不同色温时其发射光谱有所区别,但是光谱范围覆盖所有颜色的发射波长,且在380nm~480nm之间具有至少两个波峰,因此不存在蓝光危害,且经过检测,每个色温都可调节到ERP或ANSI标准中心点、或黑体轨迹线上;每个色温都满足Ra>90,R9>80;每个色温都和同色温太阳光谱拟合度>97%。Although the full-spectrum color temperature tunable LED of the present application has different emission spectra at different color temperatures, the spectral range covers the emission wavelengths of all colors, and has at least two peaks between 380nm and 480nm, so there is no blue light hazard, And after testing, each color temperature can be adjusted to the ERP or ANSI standard center point, or the black body locus line; each color temperature satisfies Ra>90, R9>80; each color temperature and the same color temperature solar spectrum fit> 97%.
附图说明Description of drawings
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:
图1至4依次示出了根据本发明的实施例1至16的第一光谱至第四光谱的光谱图;1 to 4 sequentially show the spectrograms of the first spectrum to the fourth spectrum according to
图5示出了实施例1至8的拟合光谱图;Figure 5 shows the fitted spectrograms of Examples 1 to 8;
图6示出了实施例9至16的拟合光谱图;Figure 6 shows the fitted spectrograms of Examples 9 to 16;
图7示出了实施例1、3至7以及对比例1的调色轨迹图;Fig. 7 shows the toning trajectory diagrams of Examples 1, 3 to 7 and Comparative Example 1;
图8示出了实施例9至16的调色轨迹图;FIG. 8 shows the toning trajectory diagrams of Embodiments 9 to 16;
图9示出了对比例1和实施例3的光谱对比图;Figure 9 shows the spectral contrast diagram of Comparative Example 1 and Example 3;
图10示出了对比例1和太阳光的光谱对比图;Figure 10 shows the spectral comparison diagram of Comparative Example 1 and sunlight;
图11示出了实施例1和太阳光的光谱对比图;Fig. 11 shows the spectral contrast diagram of
图12示出了实施例2和太阳光的光谱对比图;Figure 12 shows the spectral comparison diagram of Example 2 and sunlight;
图13示出了实施例3和太阳光的光谱对比图;Figure 13 shows a spectral comparison diagram of Example 3 and sunlight;
图14示出了实施例4和太阳光的光谱对比图;Figure 14 shows a spectral comparison diagram of Example 4 and sunlight;
图15示出了实施例5和太阳光的光谱对比图;Figure 15 shows a spectral comparison diagram of Example 5 and sunlight;
图16示出了实施例6和太阳光的光谱对比图;Figure 16 shows a spectral comparison diagram of Example 6 and sunlight;
图17示出了实施例7和太阳光的光谱对比图;Figure 17 shows a spectral comparison diagram of Example 7 and sunlight;
图18示出了实施例8和太阳光的光谱对比图。Figure 18 shows a spectral comparison diagram of Example 8 and sunlight.
具体实施方式Detailed ways
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
如本申请背景技术所分析的,现有技术中的全光谱器件仅能在冷白6500K和暖白2700K两个色温实现全光谱,导致其适用性较差。为了解决该问题,本申请提供了全光谱色温可调LED及具有其的灯具。As analyzed in the background art of the present application, the full-spectrum device in the prior art can only achieve full-spectrum at two color temperatures of cool white 6500K and warm white 2700K, resulting in poor applicability. In order to solve this problem, the present application provides a full-spectrum color temperature tunable LED and a luminaire having the same.
在本申请一种典型的实施方式中,提供了一种全光谱色温可调LED,在色温大于等于2200K且小于5000K时,全光谱色温可调LED的发射光谱在530~830nm具有至少一个波峰,且在380nm~530nm的最高峰强度≤530nm~830nm的最高峰强度,且色温越低两个最高峰强度的差值越大;在色温≥5000K时,全光谱色温可调LED的发射光谱在380nm~530nm具有至少一个波峰;在530nm~830nm的最高峰强度≤380nm~530nm的最高峰强度,且色温越低两个最高峰强度的差值越小;在380nm~480nm之间具有至少两个波峰。In a typical embodiment of the present application, a full-spectrum color temperature tunable LED is provided. When the color temperature is greater than or equal to 2200K and less than 5000K, the emission spectrum of the full-spectrum color temperature tunable LED has at least one peak at 530-830 nm, And the highest peak intensity at 380nm~530nm is less than or equal to the highest peak intensity at 530nm~830nm, and the lower the color temperature, the greater the difference between the two highest peak intensity; when the color temperature is ≥5000K, the emission spectrum of the full-spectrum color temperature adjustable LED is at 380nm ~530nm has at least one peak; the highest peak intensity at 530nm~830nm is less than or equal to the highest peak intensity at 380nm~530nm, and the lower the color temperature, the smaller the difference between the two highest peak intensities; there are at least two peaks between 380nm and 480nm .
本申请的全光谱色温可调LED虽然在不同色温时其发射光谱有所区别,但是光谱范围覆盖所有颜色的发射波长,且在380nm~480nm之间具有至少两个波峰,因此不存在蓝光危害,且经过检测,每个色温都可调节到ERP或ANSI标准中心点、或黑体轨迹线上;每个色温都满足Ra>90,R9>80;每个色温都和同色温太阳光谱拟合度>97%。Although the full-spectrum color temperature tunable LED of the present application has different emission spectra at different color temperatures, the spectral range covers the emission wavelengths of all colors, and has at least two peaks between 380nm and 480nm, so there is no blue light hazard, And after testing, each color temperature can be adjusted to the ERP or ANSI standard center point, or the black body locus line; each color temperature satisfies Ra>90, R9>80; each color temperature and the same color temperature solar spectrum fit> 97%.
优选地,在色温≥5000K时,所述全光谱色温可调LED的发射光谱的380nm~480nm之间,至少两个波峰中任意相邻的两个波峰之间的凹谷最低点与波峰最高点的强度比≥0.5/1,更优选≥0.55/1。如此具有更好的应用性能。Preferably, when the color temperature is greater than or equal to 5000K, the emission spectrum of the full-spectrum color temperature tunable LED is between 380 nm and 480 nm, and the lowest point of the valley and the highest point of the peak between any two adjacent peaks of the at least two peaks The intensity ratio of ≥ 0.5/1, more preferably ≥ 0.55/1. This has better application performance.
优选地,上述在色温大于等于3500K且小于5000K时,全光谱色温可调LED的发射光谱在530~830nm具有至少一个波峰,且在380nm~530nm的最高峰强度≤530nm~830nm的最高峰强度,且色温越低两个最高峰强度的差值越大;在色温在5000K~6500K时,全光谱色温可调LED的发射光谱在380nm~530nm具有至少一个波峰;在530nm~830nm的最高峰强度≤380nm~530nm的最高峰强度,且色温越低两个最高峰强度的差值越小;在380nm~480nm之间,至少两个波峰中任意相邻的两个波峰之间的凹谷最低点与波峰最高点的强度比≥0.55/1。Preferably, when the color temperature is greater than or equal to 3500K and less than 5000K, the emission spectrum of the full-spectrum color temperature tunable LED has at least one peak at 530-830nm, and the highest peak intensity at 380nm-530nm≤530nm-830nm The highest peak intensity, And the lower the color temperature, the greater the difference between the two highest peak intensities; when the color temperature is between 5000K and 6500K, the emission spectrum of the full-spectrum color temperature adjustable LED has at least one peak at 380nm to 530nm; the highest peak intensity at 530nm to 830nm is ≤ The highest peak intensity between 380nm and 530nm, and the lower the color temperature, the smaller the difference between the two highest peak intensities; between 380nm and 480nm, at least the lowest point of the valley between any two adjacent peaks in the two peaks is the same as the peak intensity. The intensity ratio of the highest point of the wave peak is ≥0.55/1.
在本申请的一些实施例中,上述全光谱色温可调LED包括:发射第一光谱的第一光源、发射第二光谱的第二光源和发射第三光谱的第三光源,第一光谱在400~480nm至少存在一个波峰,且第一光谱波峰的半波宽≥15nm;第二光谱在580~830nm至少存在一个波峰,且第二光谱波峰的半波宽≥15nm;第三光谱在480~680nm至少存在一个波峰,且第三光谱波峰的半波宽≥15nm,且第一光谱的强度、第二光谱的强度和第三光谱的强度之比为0.02~3.50:0~11:0.05~2.50。利用上述三个光源进行光强度的匹配,可以进一步优化LED的出光色谱,使每个色温的光谱具备很好的连续性,达到较为理想的全光谱。更优选地,第一光谱的强度、第二光谱的强度和第三光谱的强度之比为0.028~3.15:0.30~10.10:0.05~2.10。In some embodiments of the present application, the above-mentioned full-spectrum color temperature tunable LED includes: a first light source emitting a first spectrum, a second light source emitting a second spectrum, and a third light source emitting a third spectrum, and the first spectrum is at 400 There is at least one peak at ~480nm, and the half-wave width of the first spectral peak is ≥15 nm; the second spectrum has at least one peak at 580-830 nm, and the half-width of the second spectral peak is ≥15 nm; The third spectrum is at 480-680 nm At least one peak exists, and the half-wave width of the third spectral peak is ≥15 nm, and the ratio of the intensity of the first spectrum, the intensity of the second spectrum, and the intensity of the third spectrum is 0.02-3.50:0-11:0.05-2.50. Using the above three light sources to match the light intensity can further optimize the light emission spectrum of the LED, so that the spectrum of each color temperature has good continuity and achieves an ideal full spectrum. More preferably, the ratio of the intensity of the first spectrum, the intensity of the second spectrum and the intensity of the third spectrum is 0.028˜3.15:0.30˜10.10:0.05˜2.10.
更优选地,上述全光谱色温可调LED还包括发射第四光谱的第四光源,第四光谱在460~520nm至少存在一个波峰,且第四光谱波峰的半波宽≥15nm;且第一光谱的强度和第四光谱的强度之比为0.02~3.50:0~0.80。进一步引入第四光源,对于进一步优化LED的出光色谱以得到更理想的全光谱具有更好的促进作用。进一步优选地,第一光谱的强度和第四光谱的强度之比为0.028~3.15:0.2~0.72。More preferably, the full-spectrum color temperature adjustable LED further includes a fourth light source that emits a fourth spectrum, the fourth spectrum has at least one peak at 460-520 nm, and the half-width of the fourth spectrum peak is ≥15 nm; and the first spectrum The ratio of the intensity of the fourth spectrum to the intensity of the fourth spectrum is 0.02 to 3.50:0 to 0.80. Further introduction of the fourth light source has a better promotion effect on further optimizing the light emission spectrum of the LED to obtain a more ideal full spectrum. Further preferably, the ratio of the intensity of the first spectrum to the intensity of the fourth spectrum is 0.028˜3.15:0.2˜0.72.
为了进一步消除蓝光危害,优选上述第一光谱存在至少两个波峰,第一光谱波峰的最高峰值偏差在±5%范围内。优选地,第一光谱在480~800nm段存在最高峰,且第一光谱的400~480nm段最高峰值/第一光谱的480~800nm段最高峰值≤0.7:1。优选地,第一光谱存在两个波峰,两个第一光谱波峰的半峰宽为50~70nm;优选地,第一光源的显色指数Ra≥85,色温≥6500K。In order to further eliminate the hazard of blue light, it is preferable that the above-mentioned first spectrum has at least two peaks, and the deviation of the highest peak of the first spectrum peak is within a range of ±5%. Preferably, the first spectrum has the highest peak in the 480-800 nm range, and the highest peak in the 400-480 nm range of the first spectrum/the highest peak in the 480-800 nm range of the first spectrum≤0.7:1. Preferably, the first spectrum has two peaks, and the half-peak widths of the two first spectral peaks are 50-70 nm; preferably, the color rendering index Ra of the first light source is ≥85, and the color temperature is ≥6500K.
为了使各光谱之间实现更好的协同作用,优选地,上述第二光谱的峰值波长在605nm~830nm之间,优选在630~680nm之间,优选地,第二光谱波峰的半波宽在90~130nm之间;优选地,第二光源的显色指数Ra≥87,色温≤2200K。In order to achieve better synergy between the spectra, preferably, the peak wavelength of the second spectrum is between 605 nm and 830 nm, preferably between 630 and 680 nm, and preferably, the half-wave width of the second spectrum peak is between Between 90 and 130 nm; preferably, the color rendering index Ra of the second light source is greater than or equal to 87, and the color temperature is less than or equal to 2200K.
进一步地,为了使绿光和黄光之间实现更为平滑稳定过渡,优选上述第三光谱的峰值波长在520nm~680nm之间,第三光谱具有一个波峰,第三光谱波峰的半波宽为120~140nm;优选地,第三光源的显色指数Ra≥60。Further, in order to achieve a smoother and more stable transition between green light and yellow light, preferably the peak wavelength of the third spectrum is between 520nm and 680nm, the third spectrum has a peak, and the half-wave width of the third spectrum peak is 120~680nm. 140nm; preferably, the color rendering index Ra of the third light source is ≥60.
在一些实施例中,为了使蓝光和绿光之间实现更为平滑稳定过渡,优选上述第四光谱波峰的峰值波长在470nm~520nm之间,优选所述第四光谱波峰的半波宽为30~120nm。In some embodiments, in order to achieve a smoother and more stable transition between blue light and green light, the peak wavelength of the fourth spectral peak is preferably between 470 nm and 520 nm, and the half-wave width of the fourth spectral peak is preferably 30 nm. ~120nm.
本领域技术人员可以通过调整芯片后的激发光谱和荧光粉的发射光谱来实现上述各光谱。为了简化各光源的结构,本申请尽可能通过调整荧光粉的组成来实现对上述光谱的控制。Those skilled in the art can realize the above-mentioned spectra by adjusting the excitation spectrum of the chip and the emission spectrum of the phosphor. In order to simplify the structure of each light source, the present application achieves the control of the above-mentioned spectrum by adjusting the composition of the phosphor as much as possible.
在一些实施例,上述第一光源包括第一芯片和第一荧光粉,第一芯片为紫光芯片或蓝光芯片,第一荧光粉包括:第一蓝色荧光粉,第一蓝色荧光粉的发射峰波长为440nm~455nm,优选第一蓝色荧光粉选自Sr5(PO4)3Cl:Eu2+和(Sr,Ba)5(PO4)3Cl:Eu中的任一种或两种;第一黄绿色荧光粉,第一黄绿色荧光粉的发射峰波长为490nm~575nm,优选第一黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce、(Y1-x/Gax)3Al5O12:Ce和BaSi2O2N2:Eu2+中的任一种或多种;第一红色荧光粉,第一红色荧光粉的发射峰波长为600nm-660nm,优选第一红色荧光粉包括CaAlSiN3:Eu、SrAlSiN3:Eu、(Ca1-xSrx)AlSiN3:Eu、CaS:Eu和Ca(GeS):Eu中的任一种或多种。优选地,第一蓝色荧光粉占第一荧光粉质量比例的50%~70%、第一黄绿色荧光粉占第一荧光粉质量比例的20%~40%、第一红色荧光粉占第一荧光粉的质量比例的1%~10%。上述第一芯片和第一荧光粉的组合可以进一步优化第一光谱的在紫光和蓝光过渡区域的峰值位置和半峰宽大小,并有效避免后续产生蓝光危害。In some embodiments, the first light source includes a first chip and a first phosphor powder, the first chip is a violet light chip or a blue light chip, the first phosphor powder includes: a first blue phosphor powder, and the emission of the first blue phosphor powder The peak wavelength is 440nm~455nm, preferably the first blue phosphor is selected from any one or both of Sr5 (PO4 )3 Cl:Eu2+ and (Sr,Ba)5 (PO4 )3 Cl:Eu The first yellow-green phosphor, the emission peak wavelength of the first yellow-green phosphor is 490nm-575nm, preferably the first yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Among Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 :Ce, (Y1-x /Gax )3 Al5 O12 :Ce and BaSi2 O2 N2 :Eu2+ Any one or more of; the first red phosphor, the emission peak wavelength of the first red phosphor is 600nm-660nm, preferably the first red phosphor includes CaAlSiN3 :Eu, SrAlSiN3 :Eu, (Ca1-x Any one or more of Srx )AlSiN3 :Eu, CaS:Eu and Ca(GeS):Eu. Preferably, the first blue phosphor accounts for 50%-70% of the mass ratio of the first phosphor powder, the first yellow-green phosphor powder accounts for 20%-40% of the mass ratio of the first phosphor powder, and the first red phosphor powder accounts for the third mass ratio of the first phosphor powder. The mass ratio of a phosphor powder is 1% to 10%. The combination of the first chip and the first phosphor can further optimize the peak position and half-peak width of the first spectrum in the transition region between violet light and blue light, and effectively avoid subsequent blue light hazard.
在一些实施例,第二光源包括第二芯片和第二荧光粉,第二芯片为紫光芯片或蓝光芯片,第二荧光粉包括:第二黄绿色荧光粉,第二黄绿色荧光粉的发射峰波长为490nm~575nm,优选第二黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce、(Y1-x/Gax)3Al5O12:Ce和BaSi2O2N2:Eu2+中的任一种或多种;第二红色荧光粉,第二红色荧光粉的发射峰波长为600nm-660nm,优选第二红色荧光粉包括CaAlSiN3:Eu、SrAlSiN3:Eu、(Ca1-xSrx)AlSiN3:Eu、CaS:Eu和Ca(GeS):Eu中的任一种或多种。优选地,第二黄绿色荧光粉占第二荧光粉质量比例的85%~98%,第二红色荧光粉占第二荧光粉质量比例的2%~15%。上述第二芯片和第二荧光粉的组合可以进一步优化第二光谱在黄光和红光过渡区间的峰值位置和半峰宽大小。In some embodiments, the second light source includes a second chip and a second phosphor, the second chip is a violet light chip or a blue light chip, the second phosphor includes: a second yellow-green phosphor, and the emission peak of the second yellow-green phosphor The wavelength is 490nm-575nm, preferably the second yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 : any one or more of Ce, (Y1-x/ Gax )3 Al5 O12 :Ce and BaSi2 O2 N2 :Eu2+ ; the second red phosphor, the second red phosphor The emission peak wavelength of the powder is 600nm-660nm, preferably the second red phosphor includes CaAlSiN3 :Eu, SrAlSiN3 :Eu, (Ca1-x Srx )AlSiN3 :Eu, CaS:Eu and Ca(GeS):Eu any one or more of. Preferably, the second yellow-green phosphor powder accounts for 85% to 98% of the mass ratio of the second phosphor powder, and the second red phosphor powder accounts for 2% to 15% of the mass ratio of the second phosphor powder. The combination of the second chip and the second phosphor can further optimize the peak position and half-peak width of the second spectrum in the transition range between yellow light and red light.
在一些实施例,第三光源包括第三芯片和第三荧光粉,第三芯片为紫光芯片或蓝光芯片,第三荧光粉包括:第三黄绿色荧光粉,第三黄绿色荧光粉的发射峰波长为520nm~575nm,优选第三黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce和(Y1-x/Gax)3Al5O12:Ce中的任一种或多种;第三红色荧光粉,第三红色荧光粉的发射峰波长为590nm~620nm,优选第三红色荧光粉CaAlSiN3:Eu、SrAlSiN3:Eu、(Ca1-xSrx)AlSiN3:Eu、CaS:Eu和Ca(GeS):Eu中的任一种或多种。优选地,第三黄绿色荧光粉占所述第三荧光粉质量比例的90%~99%,第三红色荧光粉占所述第三荧光粉质量比例的1%~10%。上述第三芯片和第三荧光粉的组合可以进一步优化第三光谱在绿光和黄光过渡区间的峰值位置和半峰宽大小。In some embodiments, the third light source includes a third chip and a third phosphor, the third chip is a purple light chip or a blue light chip, the third phosphor includes: a third yellow-green phosphor, and the emission peak of the third yellow-green phosphor The wavelength is 520nm~575nm, preferably the third yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O12 : any one or more of Ce and (Y1-x /Gx )3 Al5 O12 : Ce; the third red phosphor, the emission peak wavelength of the third red phosphor is 590nm~620nm, preferably Any one or more of the third red phosphors CaAlSiN3 :Eu, SrAlSiN3 :Eu, (Ca1-x Srx )AlSiN3 :Eu, CaS:Eu and Ca(GeS):Eu. Preferably, the third yellow-green phosphor powder accounts for 90% to 99% of the mass ratio of the third phosphor powder, and the third red phosphor powder accounts for 1% to 10% of the mass ratio of the third phosphor powder. The combination of the third chip and the third phosphor can further optimize the peak position and half-peak width of the third spectrum in the transition interval between green light and yellow light.
在一些实施例,第四光源包括第四芯片和第四荧光粉,第四芯片为紫光芯片或蓝光芯片,第四荧光粉包括:第四黄绿色荧光粉,第四黄绿色荧光粉的发射峰波长为480nm~520nm,优选第四黄绿色荧光粉包括La3Si6N11:Ce、Y3Al5O12:Ce、Y3(Al,Ga)5O12:Ce、Lu3Al5O12:Ce、(Y1-x/Gax)3Al5O12:Ce和BaSi2O2N2:Eu2+中的任一种或多种。上述第四芯片和第四荧光粉的组合可以进一步优化第四光谱在淡蓝光区间的峰值位置和半峰宽大小,优化白光出光效果。In some embodiments, the fourth light source includes a fourth chip and a fourth phosphor, the fourth chip is a violet chip or a blue chip, the fourth phosphor includes: a fourth yellow-green phosphor, and the emission peak of the fourth yellow-green phosphor The wavelength is 480nm-520nm, and preferably the fourth yellow-green phosphor includes La3 Si6 N11 :Ce, Y3 Al5 O12 :Ce, Y3 (Al,Ga)5 O12 :Ce, Lu3 Al5 O Any one or more of12 :Ce, (Y1-x/ Gax )3 Al5 O12 :Ce and BaSi2 O2 N2 :Eu2+ . The combination of the fourth chip and the fourth phosphor can further optimize the peak position and half-peak width of the fourth spectrum in the light blue range, and optimize the white light emitting effect.
在本申请另一种典型的实施方式中,提供了一种灯具,具有光源,该光源为上述任一种的全光谱色温可调LED。具有本申请全光谱色温可调LED的灯具,且在380nm~480nm之间不存在单一蓝光尖峰,因此不存在蓝光危害,且经过检测,每个色温都可调节到ERP或ANSI标准中心点、或黑体轨迹线上;每个色温都满足Ra>90,R9>80;每个色温都和同色温太阳光谱拟合度>97%。In another typical embodiment of the present application, a lamp is provided, which has a light source, and the light source is any one of the above-mentioned full-spectrum color temperature tunable LEDs. The luminaire with the full-spectrum color temperature adjustable LED of the present application, and there is no single blue light peak between 380nm and 480nm, so there is no blue light hazard, and after testing, each color temperature can be adjusted to the ERP or ANSI standard center point, or On the black body locus; each color temperature satisfies Ra>90, R9>80; each color temperature fits the solar spectrum with the same color temperature>97%.
以下将结合实施例和对比例,进一步说明本申请的有益效果。The beneficial effects of the present application will be further described below in conjunction with the examples and comparative examples.
各实施例所用的各光谱对应的芯片和荧光粉组成记录在表1中。The chip and phosphor compositions corresponding to each spectrum used in each example are recorded in Table 1.
表1Table 1
上述各光谱的谱图依次记录在图1至图4中,其中第一光谱的谱图见图1,第二光谱的谱图见图2,第三光谱的谱图见图3,第四光谱的谱图见图4(横坐标为波长,纵坐标为峰强)。Spectrograms of the above-mentioned spectra are sequentially recorded in Fig. 1 to Fig. 4, wherein the spectrogram of the first spectrum is shown in Fig. 1, the spectrogram of the second spectrum is shown in Fig. 2, the spectrogram of the third spectrum is shown in Fig. 3, and the spectrogram of the fourth spectrum is shown in Fig. 3 The spectrum is shown in Figure 4 (the abscissa is the wavelength, and the ordinate is the peak intensity).
以下各实施例和对比例中,各光谱的强度比值、色温和光电参数记录在表2中。In the following examples and comparative examples, the intensity ratio, color temperature and photoelectric parameters of each spectrum are recorded in Table 2.
表2Table 2
上述实施例1至8的拟合光谱记录在图5(横坐标为波长,纵坐标为峰强),实施例1、3至7及对比例1的调色轨迹图见图7,实施例9至16的拟合光谱记录在图6(横坐标为波长,纵坐标为峰强),调色轨迹图见图8。The fitting spectra of the above-mentioned Examples 1 to 8 are recorded in Figure 5 (the abscissa is the wavelength, and the ordinate is the peak intensity). The fitted spectrum to 16 is recorded in Fig. 6 (the abscissa is the wavelength, and the ordinate is the peak intensity), and the toning locus is shown in Fig. 8.
对比例1Comparative Example 1
由波长为450~460nm的普通蓝光芯片激发荧光粉发光,荧光粉按照质量百分含量的组分为:95.89%发射峰波长为520~530nm的黄绿色荧光粉GaAG和4.11%发射峰波长为625~665nm的氮化物类红色荧光粉CaAlSiN3:Eu。The fluorescent powder is excited by the ordinary blue light chip with a wavelength of 450-460 nm to emit light. The components of the fluorescent powder according to the mass percentage are: 95.89% of the yellow-green fluorescent powder with the emission peak wavelength of 520-530 nm GaAG and 4.11% of the emission peak wavelength of 625 ~665nm nitride-based red phosphor CaAlSiN3 :Eu.
将色温5000K下的对比例1的光谱和本申请实施例3的光谱直接对比,见图9,可见实施例3的蓝光更低,没有蓝光尖峰,降低了蓝光危害。The spectrum of Comparative Example 1 at a color temperature of 5000K is directly compared with the spectrum of Example 3 of the present application, as shown in Figure 9, it can be seen that the blue light of Example 3 is lower, there is no blue light peak, and the blue light hazard is reduced.
将对比例1的光谱、本申请实施例1至8的光谱分别和相应色温下的太阳光谱进行对比,见图10至18(横坐标为波长,纵坐标为峰强),可见,在430nm-690nm范围内,实施例1至8与同色温太阳光谱GFC(拟合度系数)更高,对比例1的拟合度为95.5%,实施例1的拟合度为98.66%,实施例2的拟合度为99.21%,实施例3的拟合度为98.9%,实施例4的拟合度为98.83%,实施例5的拟合度为98.89%,实施例6的拟合度为98.51%,实施例7的拟合度为98.16%,实施例8的拟合度为97.18%。The spectrum of Comparative Example 1, the spectrum of Examples 1 to 8 of the present application are compared with the solar spectrum under the corresponding color temperature, as shown in Figures 10 to 18 (the abscissa is the wavelength, the ordinate is the peak intensity), it can be seen that at 430nm- In the range of 690nm, Examples 1 to 8 and the same color temperature solar spectrum GFC (Fitness Coefficient) is higher, the fit degree of Comparative Example 1 is 95.5%, the fit degree of Example 1 is 98.66%, The fit is 99.21%, the fit of Example 3 is 98.9%, the fit of Example 4 is 98.83%, the fit of Example 5 is 98.89%, and the fit of Example 6 is 98.51% , the fitting degree of Example 7 is 98.16%, and the fitting degree of Example 8 is 97.18%.
另外,将本申请实施例1至8的各色温、对比例1的色温进行对比,见图7,可见,对比例1在部分色温会超出色容差要求;本申请各实施例的色温不仅四色可调,可以确认每个色温都可以做到色区中心点,色容差<3。In addition, comparing the color temperatures of Examples 1 to 8 of the present application and the color temperature of Comparative Example 1, as shown in Figure 7, it can be seen that the color temperature of Comparative Example 1 exceeds the color tolerance requirement in some parts; the color temperature of each embodiment of the present application is not only four The color can be adjusted, and it can be confirmed that each color temperature can achieve the center point of the color area, and the color tolerance is less than 3.
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210623561.1ACN115241346A (en) | 2022-06-02 | 2022-06-02 | Full-spectrum color temperature adjustable LED and lamp with same |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210623561.1ACN115241346A (en) | 2022-06-02 | 2022-06-02 | Full-spectrum color temperature adjustable LED and lamp with same |
| Publication Number | Publication Date |
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| CN115241346Atrue CN115241346A (en) | 2022-10-25 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202210623561.1APendingCN115241346A (en) | 2022-06-02 | 2022-06-02 | Full-spectrum color temperature adjustable LED and lamp with same |
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| CN (1) | CN115241346A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025108458A1 (en)* | 2023-11-23 | 2025-05-30 | 苏州欧普照明有限公司 | Light source module, lighting system and lamp |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036435A (en)* | 2009-09-28 | 2011-04-27 | 财团法人工业技术研究院 | A light-color modulation method and a light-color-variable light-emitting diode light source module |
| CN104373838A (en)* | 2014-06-30 | 2015-02-25 | 深圳大学 | LED light source module and LED lamp |
| KR20190031968A (en)* | 2017-09-19 | 2019-03-27 | 주식회사 동부엘이디 | White LED Packages Having UV LED Chips Therein |
| CN109860370A (en)* | 2018-11-26 | 2019-06-07 | 旭宇光电(深圳)股份有限公司 | Full spectrum LED light source |
| CN111933782A (en)* | 2020-07-31 | 2020-11-13 | 佛山市国星光电股份有限公司 | White LED light source and LED lamp comprising same |
| CN112608750A (en)* | 2020-12-16 | 2021-04-06 | 中国科学院长春应用化学研究所 | Full-spectrum LED fluorescent powder composition and full-spectrum white LED device |
| US20210219395A1 (en)* | 2020-01-09 | 2021-07-15 | Leddynamics, Inc. | Systems and methods for tunable led lighting |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036435A (en)* | 2009-09-28 | 2011-04-27 | 财团法人工业技术研究院 | A light-color modulation method and a light-color-variable light-emitting diode light source module |
| CN104373838A (en)* | 2014-06-30 | 2015-02-25 | 深圳大学 | LED light source module and LED lamp |
| KR20190031968A (en)* | 2017-09-19 | 2019-03-27 | 주식회사 동부엘이디 | White LED Packages Having UV LED Chips Therein |
| CN109860370A (en)* | 2018-11-26 | 2019-06-07 | 旭宇光电(深圳)股份有限公司 | Full spectrum LED light source |
| US20210219395A1 (en)* | 2020-01-09 | 2021-07-15 | Leddynamics, Inc. | Systems and methods for tunable led lighting |
| CN111933782A (en)* | 2020-07-31 | 2020-11-13 | 佛山市国星光电股份有限公司 | White LED light source and LED lamp comprising same |
| CN112608750A (en)* | 2020-12-16 | 2021-04-06 | 中国科学院长春应用化学研究所 | Full-spectrum LED fluorescent powder composition and full-spectrum white LED device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025108458A1 (en)* | 2023-11-23 | 2025-05-30 | 苏州欧普照明有限公司 | Light source module, lighting system and lamp |
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