CN113140662A - LED standard light source and LED light-emitting device - Google Patents
LED standard light source and LED light-emitting device Download PDFInfo
- Publication number
- CN113140662A CN113140662A CN202110350253.1A CN202110350253A CN113140662A CN 113140662 A CN113140662 A CN 113140662A CN 202110350253 A CN202110350253 A CN 202110350253A CN 113140662 A CN113140662 A CN 113140662A
- Authority
- CN
- China
- Prior art keywords
- fluorescent powder
- light source
- spectrum
- led
- standard light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000843 powder Substances 0.000 claims abstract description 120
- 239000003292 glue Substances 0.000 claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 238000001228 spectrum Methods 0.000 claims description 92
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 75
- 108010043121 Green Fluorescent Proteins Proteins 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 229910016064 BaSi2 Inorganic materials 0.000 claims description 3
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000003086 colorant Substances 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 4
- 102100032047 Alsin Human genes 0.000 description 3
- 101710187109 Alsin Proteins 0.000 description 3
- 229910016066 BaSi Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
The invention belongs to the technical field of lighting sources, and particularly relates to an LED standard light source and an LED light-emitting device. The LED standard light source comprises a purple light chip and fluorescent glue packaged on the purple light chip, wherein the fluorescent glue comprises packaging glue and fluorescent powder with various colors for the purple light chip to excite and generate emission waves. The LED standard light source provided by the invention can realize a single-channel standard light source only by a purple light chip and by matching with multicolor fluorescent powder, and has the advantages of good stability, low cost, good uniformity and good application prospect compared with the traditional multi-primary-color LED standard light source.
Description
Technical Field
The invention belongs to the technical field of lighting sources, and particularly relates to an LED standard light source and an LED light-emitting device.
Background
The color of the object is reflected by a spectrum presented after the light irradiates on the surface of the object, and the colors presented by the object are different due to the difference of the absorption degrees of the light with different wavelengths when the same object is irradiated by different light sources. Natural light is considered as the most ideal light source for observing the color of an object, but due to the limitation of time and environment, people cannot observe the color of the object under the natural light all the time, and in most cases, people only can use an artificial light source to observe the color of the object. In order to improve the accuracy of color observation, it is necessary to observe the color of an object using an artificial standard light source close to the spectral components of natural light. A standard light source is an artificial light source defined by the CIE that radiates approximately CIE standard illuminants. The standard light source is widely applied to the fields of printing, environmental light source calibration, paint repair and the like.
At present, the standard light source is generally realized by mixing multi-primary-color LEDs, the method needs a complex circuit to realize control, not only is the cost higher, but also more uncontrollable factors exist in the calibration process, and the multi-primary-color LEDs have the defects of longer light-cutting time, poorer uniformity and consistency and the like in the light-cutting process (A light switching D50 or D50 switching D65 and the like).
Disclosure of Invention
The invention aims to provide an LED standard light source and an LED light-emitting device, and aims to solve the technical problems of high cost, long light-cutting time and the like of the conventional multi-primary-color LED.
In order to achieve the above object, in one aspect, the present invention provides an LED standard light source, which includes a violet chip and a fluorescent glue encapsulated on the violet chip, where the fluorescent glue includes an encapsulating glue and a fluorescent powder mixture for exciting the violet chip to generate an emission wave; the fluorescent powder mixture comprises first blue fluorescent powder with the emission wavelength of 400nm-420nm, second blue fluorescent powder with the emission wavelength of 445nm-465nm, cyan fluorescent powder with the emission wavelength of 480nm-500nm, green fluorescent powder with the emission wavelength of 500nm-520nm, yellow fluorescent powder with the emission wavelength of 550nm-580nm, first red fluorescent powder with the emission wavelength of 650nm-680nm, second red fluorescent powder with the emission wavelength of 700nm-730nm and infrared fluorescent powder with the emission wavelength of 800nm-850 nm.
The LED standard light source provided by the invention can realize a single-channel standard light source only by a purple light chip and by matching with multicolor fluorescent powder, and has the advantages of good stability, low cost and good uniformity compared with the traditional multi-primary-color LED standard light source.
As a preferable technical solution of the LED standard light source of the present invention, the spectrum of the LED standard light source includes at least one of a first spectrum, a second spectrum, and a third spectrum, and the similarity between the first spectrum and the standard a light spectrum is greater than or equal to 95%; the second spectrum has a similarity of 95% or more to the standard D50 spectrum; the third spectrum has a similarity of 95% or more to the standard D65 spectrum.
As a further preferable technical scheme of the LED standard light source, the wave peak of the first spectrum is at least between 440nm-460nm, 540nm-560nm, 650nm-660nm and 700nm-730nm, and the peak intensity ratio is (0.35-0.40): 0.55-0.60): 0.83-0.87): 0.95-0.97.
As a further preferable technical solution of the LED standard light source of the present invention, when the spectrum of the LED standard light source is the first spectrum, the mass ratio of the first blue phosphor, the second blue phosphor, the cyan phosphor, the green phosphor, the yellow phosphor, the first red phosphor, the second red phosphor and the infrared phosphor is (2.4-2.6): 0.8-0.9): 0.2-0.3): 0.4-0.5): 0.1-0.15): 0.12-0.18): 1.7-1.9): 0.7-0.8.
As a further preferable technical solution of the LED standard light source of the present invention, the highest intensity wavelength of the first spectrum is located at 780 nm.
As a further preferable technical scheme of the LED standard light source, the wave peak of the second spectrum is at least between 440nm-450nm, 530nm-550nm, 630nm-640nm and 700nm-730nm, and the intensity ratio of the wave peak is (0.90-0.95):1, (0.85-0.90): 0.7-0.8).
As a further preferable technical solution of the LED standard light source of the present invention, when the spectrum of the LED standard light source is the second spectrum, the mass ratio of the first blue phosphor, the second blue phosphor, the cyan phosphor, the green phosphor, the yellow phosphor, the first red phosphor, the second red phosphor and the infrared phosphor is (4.1-4.4): 0.4-0.5): 0.008-0.01): 0.7-0.9): 0.07-0.09): 0.05-0.06): 0.3-0.5): 0.5-0.6.
As a further preferable technical scheme of the LED standard light source, the wave peak of the third spectrum is at least between 440nm-450nm, 500nm-510nm, 620nm-630nm and 700nm-730nm, and the intensity ratio of the wave peak is 1 (0.90-0.95): 0.7-0.8): 0.5-0.6.
As a further preferable technical solution of the LED standard light source of the present invention, when the spectrum of the LED standard light source is the third spectrum, the mass ratio of the first blue phosphor, the second blue phosphor, the cyan phosphor, the green phosphor, the yellow phosphor, the first red phosphor, the second red phosphor and the infrared phosphor is (3.5-3.6), (0.4-0.5), (0.01-0.02), (1.2-1.4), (0.08-0.1), (0.05-0.06), (0.04-0.06), (0.4-0.6).
As a preferable technical scheme of the LED standard light source, the peak wavelength of the purple light chip is 365nm-390 nm.
As a preferable technical scheme of the LED standard light source, the first blue fluorescent powder is selected from Sr5(PO4)3Cl:Eu2+And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the second blue fluorescent powder is selected from Sr5(PO4)3Cl:Eu2+And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the cyan fluorescent powder is selected from BaSi2O2N2:Eu2+And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the green fluorescent powder is selected from Lu3Al5O12:Ce3 +And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the yellow fluorescent powder is selected from Y3Al5O12:Ce3+And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the first red fluorescent powder is selected from (Ca, Sr) AlSiN3:Eu2+And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the second red fluorescent powder is selected from CaAlSiN3:Eu2+And (4) preparing the system.
As a preferable technical scheme of the LED standard light source, the infrared fluorescent powder is selected from (Y, Zn)3(Al,Ga,Ge)5O12:Cr3+,Ce3+And (4) preparing the system.
As a preferred technical scheme of the LED standard light source, the packaging adhesive is ultraviolet-resistant silica gel.
In another aspect of the present invention, an LED lighting device is provided, which includes a light source, wherein the light source is the LED standard light source according to the present invention.
The LED standard light source in the LED light-emitting device provided by the invention is a single-channel standard light source and has the advantages of good stability, low cost and good uniformity, so that the LED light-emitting device provided by the invention has good application prospect. When the LED light-emitting device provided by the invention is used for simulating natural light, the problem of long light-cutting time in the traditional multi-primary-color LED control simulation of the natural light is solved.
Drawings
FIG. 1 is a waveform diagram of a spectrum when a spectrum of an LED standard light source is a first spectrum according to an embodiment of the present invention;
FIG. 2 is a graph of a spectral waveform of a standard A light source;
FIG. 3 is a waveform diagram of a spectrum when the spectrum of the LED standard light source is a second spectrum according to the embodiment of the invention;
FIG. 4 is a waveform of the spectrum of a standard D50 light source;
FIG. 5 is a waveform diagram of a spectrum when the spectrum of the LED standard light source is a third spectrum according to the embodiment of the invention;
FIG. 6 is a waveform of the spectrum of a standard D65 light source.
Detailed Description
In order to make the objects, technical solutions and technical effects of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and the embodiments described below are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive step in connection with the embodiments of the present invention shall fall within the scope of protection of the present invention. Those whose specific conditions are not specified in the examples are carried out according to conventional conditions or conditions recommended by the manufacturer; the reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, the term "and/or" describing an association relationship of associated objects means that there may be three relationships, for example, a and/or B, may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the description of the present invention, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, "at least one (a), b, or c", or "at least one (a), b, and c", may each represent: a. b, c, a-b (i.e. a and b), a-c, b-c, or a-b-c, wherein a, b, and c can be single or multiple respectively.
It should be understood that the weight of the related components mentioned in the embodiments of the present invention may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, it is within the scope of the disclosure that the content of the related components is scaled up or down according to the embodiments of the present invention. Specifically, the weight described in the embodiments of the present invention may be a unit of mass known in the chemical field such as μ g, mg, g, kg, etc.
In addition, unless the context clearly uses otherwise, an expression of a word in the singular is to be understood as including the plural of the word. The terms "comprises" or "comprising" are intended to specify the presence of stated features, quantities, steps, operations, elements, portions, or combinations thereof, but are not intended to preclude the presence or addition of one or more other features, quantities, steps, operations, elements, portions, or combinations thereof.
The embodiment of the invention provides an LED standard light source which comprises a purple light chip and fluorescent glue packaged on the purple light chip, wherein the fluorescent glue comprises a packaging glue and a fluorescent powder mixture for exciting the purple light chip to generate emission waves; the fluorescent powder mixture comprises first blue fluorescent powder with the emission wavelength of 400nm-420nm, second blue fluorescent powder with the emission wavelength of 445nm-465nm, cyan fluorescent powder with the emission wavelength of 480nm-500nm, green fluorescent powder with the emission wavelength of 500nm-520nm, yellow fluorescent powder with the emission wavelength of 550nm-580nm, first red fluorescent powder with the emission wavelength of 650nm-680nm, second red fluorescent powder with the emission wavelength of 700nm-730nm and infrared fluorescent powder with the emission wavelength of 800nm-850 nm.
The LED standard light source provided by the embodiment of the invention can realize a single-channel standard light source by only using a purple light chip and exciting the multicolor fluorescent powder, and has the advantages of good stability, low cost and good uniformity compared with the traditional multi-primary-color LED standard light source.
The LED standard light source provided by the embodiment of the invention can have a plurality of spectral characteristics, and the spectrum of the LED standard light source comprises at least one of a first spectrum, a second spectrum and a third spectrum. Wherein, the similarity between the first spectrum and the standard A light source spectrum is more than or equal to 95 percent; the similarity of the second spectrum and the standard D50 light source spectrum is greater than or equal to 95 percent; the third spectrum has a similarity of 95% or more to the standard D65 light source spectrum. Therefore, the LED standard light source provided by the embodiment of the invention has very high similarity with various specific standard light sources, is used as an artificial light source, and is favorable for improving the accuracy of color observation.
In some embodiments, the first spectrum has peaks at least between 440nm-460nm, 540nm-560nm, 650nm-660nm, and 700nm-730nm, and peak intensity ratios of (0.35-0.40): 0.55-0.60): 0.83-0.87): 0.95-0.97. Wherein the peak of the first spectrum has a relatively highest intensity between 700nm and 730 nm. In one embodiment, the highest intensity wavelength of the first spectrum is at 780 nm.
In some embodiments, the mass ratio of the first blue phosphor, the second blue phosphor, the cyan phosphor, the green phosphor, the yellow phosphor, the first red phosphor, the second red phosphor and the infrared phosphor is (2.4-2.6): 0.8-0.9): 0.2-0.3): 0.4-0.5): 0.1-0.15): 0.12-0.18): 1.7-1.9): 0.7-0.8. The ratio of the fluorescent powder of each color is set to be the ratio, so that the spectrum of the LED standard light source is the first spectrum, meets the requirement of the spectrum of the standard A light source, and can be used as the standard A light source.
In some embodiments, the second spectrum has peaks at least between 440nm-450nm, 530nm-550nm, 630nm-640nm, and 700nm-730nm, and the peak intensity ratio is (0.90-0.95):1 (0.85-0.90): 0.7-0.8). Wherein the peak of the second spectrum has a relatively highest intensity between 530nm and 550 nm.
In some embodiments, the mass ratio of the first blue phosphor, the second blue phosphor, the cyan phosphor, the green phosphor, the yellow phosphor, the first red phosphor, the second red phosphor and the infrared phosphor is (4.1-4.4): (0.4-0.5): 0.008-0.01): 0.7-0.9): 0.07-0.09): 0.05-0.06): 0.3-0.5): 0.5-0.6. By setting the ratio of the phosphors of each color to the ratio, the spectrum of the standard LED light source is set to the second spectrum, which meets the spectrum requirement of the standard D50 light source, and the standard D50 light source can be used.
In some embodiments, the third spectrum has peaks at least between 440nm-450nm, 500nm-510nm, 620nm-630nm, and 700nm-730nm, and the peak intensity ratio is 1 (0.90-0.95): (0.7-0.8): 0.5-0.6). Wherein the peak of the third spectrum has a relatively highest intensity between 440nm and 450 nm.
In some embodiments, the mass ratio of the first blue phosphor, the second blue phosphor, the cyan phosphor, the green phosphor, the yellow phosphor, the first red phosphor, the second red phosphor and the infrared phosphor is (3.5-3.6): 0.4-0.5): 0.01-0.02): 1.2-1.4): 0.08-0.1): 0.05-0.06): 0.04-0.06): 0.4-0.6. By setting the ratio of the phosphors of each color to the ratio, the spectrum of the standard LED light source is set to the third spectrum, which meets the spectrum requirement of the standard D65 light source, and the standard D65 light source can be used.
In some embodiments, the violet chip is selected to have a peak wavelength of 365nm to 390 nm. By exciting the mixture of the first blue fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder by using the purple light chip with the peak wavelength of 365nm-390nm, the range of the emission peak of the excited light in the first spectrum, the second spectrum and/or the third spectrum can be wider, and the energy utilization rate is improved.
In some embodiments, the first blue phosphor is selected from Sr5(PO4)3Cl:Eu2+And (4) preparing the system.
In some embodiments, the second blue phosphor is selected from Sr5(PO4)3Cl:Eu2+And (4) preparing the system.
In some embodiments, the cyan phosphor is selected from BaSi2O2N2:Eu2+And (4) preparing the system.
In some embodiments, the green phosphor is selected from Lu3Al5O12:Ce3+And (4) preparing the system.
In some embodiments, the yellow phosphor is selected from Y3Al5O12:Ce3+And (4) preparing the system.
In some embodiments, the first red phosphor is selected from (Ca, Sr) AlSiN3:Eu2+And (4) preparing the system.
In some embodiments, the second red phosphor is selected from CaAlSiN3:Eu2+And (4) preparing the system.
In some embodiments, the infrared phosphor is selected from (Y, Zn)3(Al,Ga,Ge)5O12:Cr3+,Ce3+And (4) preparing the system.
In some embodiments, the encapsulant is an ultraviolet resistant silicone. The anti-ultraviolet silica gel is selected, cannot be influenced by ultraviolet rays, has the advantages of low stress and low possibility of damage, has excellent refractive index and light transmittance, can ensure that the colloid and fluorescent powder of various colors are mixed and then reduce or avoid influencing the brightness of the LED standard light source as far as possible, ensures the output of luminous flux to the maximum extent, and avoids the occurrence of color temperature drift phenomenon.
The LED standard light source provided by the embodiment of the invention can be prepared by adopting a conventional preparation method in the field.
The embodiment of the invention also provides an LED light-emitting device which comprises a light source, wherein the light source is the LED standard light source provided by the embodiment of the invention.
The LED standard light source in the LED light-emitting device provided by the embodiment of the invention is a single-channel standard light source and has the advantages of good stability, low cost and good uniformity, so that the LED light-emitting device provided by the embodiment of the invention has good application prospect. When the LED light-emitting device provided by the embodiment of the invention is used for simulating natural light, the problem of long light-cutting time in the traditional multi-primary-color LED control simulation of the natural light is solved.
In some embodiments, the LED standard light sources in the LED lighting device include three types, the spectrum of the first standard light source is the first spectrum provided in the above embodiments, the spectrum of the second standard light source is the second spectrum provided in the above embodiments, and the spectrum of the third standard light source is the third spectrum provided in the above embodiments. Because the three standard LED light sources are single-channel standard light sources, the LED light-emitting device is applied to natural light simulation of environment sensing (including but not limited to mobile phone camera calibration and the like, and has the advantages of short light-cutting time, convenience in control and low cost in the light-cutting (A light switching D50, D50 switching D65 and the like).
The LED light-emitting device provided by the embodiment of the invention can be prepared by adopting a conventional preparation method in the field.
In order to make the above implementation details and operations of the present invention clearly understood by those skilled in the art and to make the advanced performance of the LED standard light source and the LED lighting device according to the embodiments of the present invention remarkably manifest, the above technical solutions are exemplified by the following embodiments.
Example 1
The embodiment provides an LED standard light source (standard A light source), which comprises a purple light chip with a peak wavelength of 365nm-390nm and fluorescent glue packaged on the purple light chip, wherein the fluorescent glue is a mixture of ultraviolet-resistant silica gel and fluorescent powder; wherein the phosphor mixture is a first blue phosphor (Sr) with emission wavelength of 400-420 nm5(PO4)3Cl:Eu2+) And a second blue phosphor (Sr) having an emission wavelength of 445nm-465nm5(PO4)3Cl:Eu2+) Having an emission wavelength of480nm-500nm cyan fluorescent powder (BaSi)2O2N2:Eu2+) Green fluorescent powder (Lu) with emission wavelength of 500nm-520nm3Al5O12:Ce3+) Yellow fluorescent powder (Y) with emission wavelength of 550nm-580nm3Al5O12:Ce3+) And a first red phosphor ((Ca, Sr) AlSiN) with an emission wavelength of 650nm-680nm3:Eu2+) And a second red phosphor (CaAlSiN) with emission wavelength of 700-730 nm3:Eu2+) Infrared fluorescent powder with 800-850 nm emission wavelength (Y, Zn)3(Al,Ga,Ge)5O12:Cr3+,Ce3+). The mass ratio of the first blue fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder is 2.5:0.85:0.21:0.45:0.12:0.17:1.75: 0.75.
Example 2
The embodiment provides an LED standard light source (standard D50 light source), which comprises a purple light chip with a peak wavelength of 365nm-390nm and fluorescent glue packaged on the purple light chip, wherein the fluorescent glue is a mixture of ultraviolet-resistant silica gel and fluorescent powder; wherein the phosphor mixture is a first blue phosphor (Sr) with emission wavelength of 400-420 nm5(PO4)3Cl:Eu2+) And a second blue phosphor (Sr) having an emission wavelength of 445nm-465nm5(PO4)3Cl:Eu2+) And a blue fluorescent powder (BaSi) with an emission wavelength of 480nm-500nm2O2N2:Eu2+) Green fluorescent powder (Lu) with emission wavelength of 500nm-520nm3Al5O12:Ce3+) Yellow fluorescent powder (Y) with emission wavelength of 550nm-580nm3Al5O12:Ce3+) And a first red phosphor ((Ca, Sr) AlSiN) with an emission wavelength of 650nm-680nm3:Eu2+) And a second red phosphor (CaAlSiN) with emission wavelength of 700-730 nm3:Eu2+) Infrared fluorescent powder with 800-850 nm emission wavelength (Y, Zn)3(Al,Ga,Ge)5O12:Cr3+,Ce3+). First blueThe mass ratio of the color fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder is 4.2:0.45:0.009:0.8:0.08:0.055:0.4: 0.55.
Example 3
The embodiment provides an LED standard light source (standard D65 light source), which comprises a purple light chip with a peak wavelength of 365nm-390nm and fluorescent glue packaged on the purple light chip, wherein the fluorescent glue is a mixture of ultraviolet-resistant silica gel and fluorescent powder; wherein the phosphor mixture is a first blue phosphor (Sr) with emission wavelength of 400-420 nm5(PO4)3Cl:Eu2+) And a second blue phosphor (Sr) having an emission wavelength of 445nm-465nm5(PO4)3Cl:Eu2+) And a blue fluorescent powder (BaSi) with an emission wavelength of 480nm-500nm2O2N2:Eu2+) Green fluorescent powder (Lu) with emission wavelength of 500nm-520nm3Al5O12:Ce3+) Yellow fluorescent powder (Y) with emission wavelength of 550nm-580nm3Al5O12:Ce3+) And a first red phosphor ((Ca, Sr) AlSiN) with an emission wavelength of 650nm-680nm3:Eu2+) And a second red phosphor (CaAlSiN) with emission wavelength of 700-730 nm3:Eu2+) Infrared fluorescent powder with 800-850 nm emission wavelength (Y, Zn)3(Al,Ga,Ge)5O12:Cr3+,Ce3+). The mass ratio of the first blue fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder is 3.55:0.45:0.015:1.3:0.09:0.055:0.05: 0.42.
Comparative example 1
An LED standard light source (standard D65 light source) comprises 10 lamp beads, specifically every 10nm chip with a peak wavelength of 380nm-780nm and fluorescent glue packaged on the chip, and realizes standard light source spectrum by controlling current change of the chip through a multi-channel power supply.
Comparative example 2
An LED standard light source (standard D65 light source) comprises 3 lamp beads, specifically a chip with a peak wavelength of 380nm-390nm, blue fluorescent powder packaged on the chip, a chip with a wavelength of 450nm-460nm, green and red fluorescent glue packaged on the chip, a chip with a wavelength of 450nm-460nm and infrared fluorescent glue packaged on the chip, and realizes standard light source spectrum by controlling current change of the chip through a multi-channel power supply.
Experimental example 1
The spectra of the standard LED light sources provided in examples 1-3 were compared with the spectra of standard a light source, standard D50 light source and standard D65 light source, respectively, and the results are shown in fig. 1-6.
As can be seen from fig. 1 and 2, the LED standard light source provided in example 1 has a similarity of 95% or more to the standard a light source.
As can be seen from fig. 3 and 4, the LED standard light source provided by example 2 has a similarity of 95% or more to the standard D50 light source.
As can be seen from fig. 5 and 6, the LED standard light source provided by embodiment 3 has a similarity of 95% or more to the standard D65 light source.
Experimental example 2
The LED standard light sources obtained in examples 1-3 and comparative examples 1-2 were compared and tested for cutoff, and the results are shown in Table 1.
TABLE 1 results of similarity rate and cut test of standard LED light sources obtained in examples 1-3 and comparative examples 1-2
| Similarity to standard spectrum (%) | Cut light stability time | |
| Example 1 | 96 | <1min |
| Example 2 | 97 | <1min |
| Example 3 | 96 | <1min |
| Comparative example 1 | 96 | >30min |
| Comparative example 2 | 95 | >20min |
The results data in table 1 show that the implementation of multiple channels as a standard light source results in too long a light-cutting time during the light-cutting process due to the difference in stability between multiple channels during the use process. The spectral similarity rate of the single-channel standard light source is equivalent to that of the traditional multi-channel similarity rate, but the light cutting time is too long. The LED standard light source obtained by the embodiment of the invention is used as a single-channel standard light source, has short light cutting time and better stability, and has higher practical application value.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An LED standard light source is characterized by comprising a purple light chip and fluorescent glue packaged on the purple light chip, wherein the fluorescent glue comprises a packaging glue and a fluorescent powder mixture for exciting the purple light chip to generate emission waves; the fluorescent powder mixture comprises first blue fluorescent powder with the emission wavelength of 400nm-420nm, second blue fluorescent powder with the emission wavelength of 445nm-465nm, cyan fluorescent powder with the emission wavelength of 480nm-500nm, green fluorescent powder with the emission wavelength of 500nm-520nm, yellow fluorescent powder with the emission wavelength of 550nm-580nm, first red fluorescent powder with the emission wavelength of 650nm-680nm, second red fluorescent powder with the emission wavelength of 700nm-730nm and infrared fluorescent powder with the emission wavelength of 800nm-850 nm.
2. The LED standard light source of claim 1, wherein the spectrum of the LED standard light source comprises at least one of a first spectrum, a second spectrum, and a third spectrum, and the first spectrum has a similarity of 95% or more to the spectrum of the standard A light source; the similarity of the second spectrum and the standard D50 light source spectrum is greater than or equal to 95%; the third spectrum has a similarity of 95% or more to the standard D65 light source spectrum.
3. The LED standard light source of claim 2, wherein the first spectrum has peaks at least between 440nm-460nm, 540nm-560nm, 650nm-660nm, and 700nm-730nm, and peak intensity ratios of (0.35-0.40): (0.55-0.60): (0.83-0.87): (0.95-0.97); and/or
When the spectrum of the LED standard light source is the first spectrum, the mass ratio of the first blue fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder is (2.4-2.6): 0.8-0.9): 0.2-0.3): 0.4-0.5): 0.1-0.15): 0.12-0.18): 1.7-1.9): 0.7-0.8.
4. The LED standard light source of claim 3, wherein the highest intensity wavelength of the first spectrum is at 780 nm.
5. The LED standard light source of claim 2, wherein the second spectrum has peaks at least between 440nm-450nm, 530nm-550nm, 630nm-640nm, and 700nm-730nm, and the peak intensity ratio is (0.90-0.95):1 (0.85-0.90): 0.7-0.8); and/or
When the spectrum of the LED standard light source is the second spectrum, the mass ratio of the first blue fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder is (4.1-4.4): 0.4-0.5): 0.008-0.01): 0.7-0.9): 0.07-0.09): 0.05-0.06): 0.3-0.5): 0.5-0.6.
6. The LED standard light source of claim 2, wherein the third spectrum has peaks at least between 440nm-450nm, 500nm-510nm, 620nm-630nm, and 700nm-730nm in a ratio of peak intensities of 1 (0.90-0.95): 0.7-0.8): 0.5-0.6); and/or
When the spectrum of the LED standard light source is the third spectrum, the mass ratio of the first blue fluorescent powder, the second blue fluorescent powder, the cyan fluorescent powder, the green fluorescent powder, the yellow fluorescent powder, the first red fluorescent powder, the second red fluorescent powder and the infrared fluorescent powder is (3.5-3.6): 0.4-0.5): 0.01-0.02): 1.2-1.4): 0.08-0.1): 0.05-0.06): 0.04-0.06): 0.4-0.6.
7. The LED standard light source according to any one of claims 1 to 6, wherein the peak wavelength of the violet chip is 365nm to 390 nm.
8. The LED standard light source according to any one of claims 1 to 6, wherein the first blue phosphor is selected from Sr5(PO4)3Cl:Eu2+A system; and/or
The second blue phosphor is selected from Sr5(PO4)3Cl:Eu2+A system; and/or
The cyan fluorescent powder is selected from BaSi2O2N2:Eu2+A system; and/or
The green phosphor is selected from Lu3Al5O12:Ce3+A system; and/or
The yellow fluorescent powder is selected from Y3Al5O12:Ce3+A system; and/or
The first red phosphor is selected from (Ca, Sr) AlSiN3:Eu2+A system; and/or
The second red fluorescent powder is selected from CaAlSiN3:Eu2+A system; and/or
The infrared fluorescent powder is selected from (Y, Zn)3(Al,Ga,Ge)5O12:Cr3+,Ce3+And (4) preparing the system.
9. The LED standard light source according to any one of claims 1 to 6, wherein the packaging adhesive is UV-resistant silicone.
10. An LED lighting device comprising a light source, wherein the light source is the LED standard light source of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110350253.1A CN113140662B (en) | 2021-03-31 | 2021-03-31 | LED standard light source and LED light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110350253.1A CN113140662B (en) | 2021-03-31 | 2021-03-31 | LED standard light source and LED light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113140662A true CN113140662A (en) | 2021-07-20 |
| CN113140662B CN113140662B (en) | 2022-12-06 |
Family
ID=76810247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110350253.1A Active CN113140662B (en) | 2021-03-31 | 2021-03-31 | LED standard light source and LED light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113140662B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117387756A (en) * | 2023-09-06 | 2024-01-12 | 温州佳易仪器有限公司 | LED standard light source color matching observation box |
| WO2024109769A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Fluorescent composition, fluorescent film and light source |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012064888A (en) * | 2010-09-17 | 2012-03-29 | Toshiba Lighting & Technology Corp | Light source device and luminaire mounting light source device |
| EP3035395A1 (en) * | 2014-12-16 | 2016-06-22 | Ledst Co., Ltd. | White light emitting diode device for illumination using near UV light and phosphor |
| CN106523956A (en) * | 2016-12-31 | 2017-03-22 | 复旦大学 | Multi-excitation-wavelength fluorescent powder converting full-spectrum LED light source |
| CN107565006A (en) * | 2017-08-30 | 2018-01-09 | 合肥工业大学 | A kind of LED light source and light fixture with daylight visible light part spectral composition |
| CN108767097A (en) * | 2018-05-31 | 2018-11-06 | 旭宇光电（深圳）股份有限公司 | Burst of ultraviolel full-spectrum LED and its application |
-
2021
- 2021-03-31 CN CN202110350253.1A patent/CN113140662B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012064888A (en) * | 2010-09-17 | 2012-03-29 | Toshiba Lighting & Technology Corp | Light source device and luminaire mounting light source device |
| EP3035395A1 (en) * | 2014-12-16 | 2016-06-22 | Ledst Co., Ltd. | White light emitting diode device for illumination using near UV light and phosphor |
| CN106523956A (en) * | 2016-12-31 | 2017-03-22 | 复旦大学 | Multi-excitation-wavelength fluorescent powder converting full-spectrum LED light source |
| CN107565006A (en) * | 2017-08-30 | 2018-01-09 | 合肥工业大学 | A kind of LED light source and light fixture with daylight visible light part spectral composition |
| CN108767097A (en) * | 2018-05-31 | 2018-11-06 | 旭宇光电（深圳）股份有限公司 | Burst of ultraviolel full-spectrum LED and its application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109769A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Fluorescent composition, fluorescent film and light source |
| CN117387756A (en) * | 2023-09-06 | 2024-01-12 | 温州佳易仪器有限公司 | LED standard light source color matching observation box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113140662B (en) | 2022-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6448748B2 (en) | Equipment for exhibiting exhibits | |
| CN113140662B (en) | LED standard light source and LED light-emitting device | |
| CN111081852A (en) | Full-spectrum LED light source and LED lamp | |
| CN210241466U (en) | Full-spectrum LED light source and LED lamp comprising same | |
| CN103779346A (en) | Near ultraviolet or ultraviolet excited LED light-emitting device | |
| CN106601892A (en) | Full spectrum LED phosphor composition and high color white light LED lamp | |
| CN105489739A (en) | Light emitting diode module with reduced blue light energy | |
| CN101872825A (en) | Novel method for preparing high-power white LED with low color temperature and high color rendering property | |
| CN104633545B (en) | Height is aobvious to refer to LED lamp and its design method | |
| CN109216529A (en) | A kind of LED light source of natural light or sunlight spectrum | |
| CN115948162A (en) | High-color-rendering fluorescent powder composition and LED packaging device | |
| CN109285937B (en) | LED white light device, preparation method thereof and LED backlight module | |
| CN108329908A (en) | A kind of white light LEDs yellowish green emitting phosphor and preparation method and White LED light-emitting device | |
| KR102503519B1 (en) | Oxyfluoride phosphor compositions and lighting apparatus thereof | |
| CN116504768A (en) | High-color-rendering and spectrum-continuous white light LED (light-emitting diode) package and light-emitting device | |
| CN108977200A (en) | Containing fluorescent powder composition and preparation method thereof | |
| CN206907768U (en) | A kind of LED lamp structure | |
| CN111163556A (en) | Light distribution method for realizing LED light source with any color | |
| CN111129263A (en) | White light LED light source with infrared band added in spectrum | |
| CN113357614B (en) | Light emitting device for ambient light calibration | |
| CN113357569B (en) | Multi-primary-color LED light-emitting system | |
| EP3965175B1 (en) | Light source module and lighting device comprising same | |
| CN102444815B (en) | White light illumination device and method for generating white light | |
| EP3575670B1 (en) | Light source module, and illumination device comprising light source module | |
| CN118231549A (en) | Full spectrum light source and manufacturing method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |