CN114050213A - Light source module and lamp - Google Patents
Light source module and lamp Download PDFInfo
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- CN114050213A CN114050213A CN202111326330.6A CN202111326330A CN114050213A CN 114050213 A CN114050213 A CN 114050213A CN 202111326330 A CN202111326330 A CN 202111326330A CN 114050213 A CN114050213 A CN 114050213A
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- light source
- far infrared
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
Abstract
The application provides a light source module, lamps and lanterns, including the white light generation portion and the well far infrared generation portion that send white light, well far infrared generation portion has radiant energy at 1000~3000nm wavelength range. The infrared ray lamp can emit middle and far infrared radiation and continuous visible light simultaneously, and the emitted light can provide the middle and far infrared radiation which can promote the health of human bodies besides the common visible light with high color development and comfort. The light source and the lamp can be used for a long time, are beneficial to human health and are safe.
Description
Technical Field
The invention relates to a light source module and a lamp for illumination.
Background
With the improvement of living standard, people have higher and higher attention to healthy life, global research on the influence of light on human bodies has formed a trend, and the concept of healthy lighting gradually enters common families. At present, common related products in the market comprise healthy rhythm light in a visible light wave band, UV sterilizing light outside the visible light wave band and infrared physiotherapy light. For the latter two, being in the invisible light band, special design is required, generally not used simultaneously with ordinary lighting, but provided as separate products. When the device is used, one more device is needed, and the user usually cannot use the device for a long time, so that the effect cannot be ensured. Users want to obtain some extra health benefits while illuminating normally, and therefore, how to integrate invisible light with special functions into the lighting device and what wavelength band of radiation to choose is a topic to be studied.
Disclosure of Invention
The present invention is directed to solving the above problems, and a light source module and a lamp that can provide infrared radiation for promoting human health while normally illuminating are provided.
In order to realize the functions, the invention adopts the technical scheme that a light source module is provided, and is characterized by comprising a white light generating part and a middle and far infrared generating part, wherein the white light generating part emits white light, and the middle and far infrared generating part has radiation energy in the wavelength range of 1000-3000 nm.
Furthermore, the mid-far infrared generating part has an emission peak in the wavelength range of 1400-1700 nm.
Furthermore, the light color temperature emitted by the white light generating part is 2500K-6500K, duv = -0.005.
Further, the ratio of the radiant energy emitted by the middle and far infrared generating part to the radiant energy emitted by the white light generating part is not less than 10%.
Further, the radiant energy emitted by the middle and far infrared generating part is 15.0-50.0% of the radiant energy emitted by the white light generating part.
Furthermore, the peak wavelength intensity of radiation emitted by the middle and far infrared generating part is 5.0-100.0% of the peak wavelength intensity of radiation emitted by the white light generating part.
Further, the peak wavelength intensity of radiation emitted by the middle and far infrared generating parts is 20.0-45.0% of the peak wavelength intensity of radiation emitted by the white light generating part.
Further, the white light generating part includes:
an excitation light source with a peak wavelength of 430-480 nm;
a second phosphor arranged to be excited by light emitted by the excitation light source to convert a portion of the photons emitted by the excitation light source into longer wavelength photons.
Further, the second phosphor comprises at least one red phosphor or orange phosphor with a peak wavelength of 610-660 nm;
and/or at least one green fluorescent powder with the peak wavelength of 520-560 nm.
Further, the middle and far infrared generating part is made of fluorescent powder materials and called as first fluorescent bodies, and at least part of radiant energy of the first fluorescent bodies is located in the wavelength range of 1000-3000 nm after the first fluorescent bodies are excited by the excitation light source.
Further, the chemical formula of at least one phosphor in the second phosphor is the same as the chemical formula of the first phosphor.
Further, the middle and far infrared generating part is an LED.
The application also provides a lamp, which is characterized by comprising a lamp body, a middle far infrared radiation source and a white light source, wherein the radiation energy emitted by the middle far infrared radiation source is in the range from more than or equal to 1000nm to less than or equal to 3000 nm.
Furthermore, the light color temperature emitted by the white light source is 2500K-6500K, and duv = -0.005.
Further, the ratio of the radiant energy emitted by the middle and far infrared radiation source to the radiant energy emitted by the white light source is not less than 10%.
Furthermore, the radiation energy emitted by the medium-far infrared radiation source is 15.0-50.0% of the radiation energy emitted by the white light source.
Further, the middle and far infrared radiation source and the white light source are LEDs.
The light source module and the lamp provided by the invention can simultaneously emit middle and far infrared radiation and continuous visible light, and the emitted light can provide the common high-color-rendering and comfortable visible light and also provide the middle and far infrared radiation capable of promoting the health of human bodies. The light source and the lamp can be used for a long time, are beneficial to human health and are safe.
Drawings
Fig. 1 is a schematic structural diagram of a light source module according to preferred embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a light source module according to a preferred embodiment 2 of the present invention;
FIGS. 3 to 7 are graphs of emission spectra of different color temperatures of a light source module according to a preferred embodiment 2 of the present invention;
FIG. 8 is a relative spectral power distribution diagram of the first phosphor in the preferred embodiment 2 of the present invention;
fig. 9 is a schematic structural diagram of a lamp according to a preferred embodiment 3 of the present invention.
Detailed Description
It is well known that bioenergy is the most fundamental and important problem in life sciences. The earliest studied on this problem was ukrainian scientist a.s.davydov who developed the theory of bioenergy transfer. The mechanism is that the protein molecule is composed of more than 20 kinds of amino acids, and the amino acids are composed of amino groups, carboxyl groups and side groups. Two amino acid molecules release one water molecule when bound together. The energy of the activity and function of the protein is mainly supplied by the energy of 0.43eV released in the hydrolysis reaction of ATP (adenosine triphosphate) molecules, and the protein is mainly used for biological processes such as muscle contraction and DNA replication to promote the growth and development of organisms. The energy can be converted into vibration excitation of amide bonds in protein molecules to realize an energy transfer process. When the biological energy is insufficient, abnormal vibration of amide bond or biological energy transfer can be caused, so that the amide bond can not grow normally, and various diseases are induced. According to the quantum vibration energy spectrum of the protein molecules, the protein molecules can absorb or emit infrared light with the wavelength of 1-3.5 micrometers and 5-7 micrometers, so that amide bonds in the protein molecules can vibrate, and therefore, the biological energy is promoted to be transmitted along the protein molecules, and biological tissues can grow healthily.
In combination with the above theory, the present application provides a light source module and a lamp capable of emitting mid-far infrared (1000-3000 nm wavelength) radiant energy while providing normal illumination.
In a preferred embodiment provided by the present application, embodiment 1 is a light source module L0 as shown in fig. 1, and includes a substrate 101, and a middle and far infrared generating portion 102 and a white light generating portion 103 disposed thereon, and the substrate 101 is further covered with a light transmitting structure 104 to form light distribution or protection for the light source. The white light generating part 103 is a white light LED with the color temperature of 2500K-6500K and the duv = -0.005, and the middle and far infrared generating part 102 is an infrared LED with the peak wavelength within the range of 1400-1700 nm and the radiation energy within the range of 1000-3000 nm. Compared with near infrared radiation with the wavelength of less than 1000nm, the medium and far infrared radiation with the wavelength of 1000-3000 nm has better effect on healthy growth of biological tissues. In order to ensure a certain irradiation effect, certain requirements are required on the energy ratio of the middle and far infrared generating part and the white light generating part, the ratio of the radiation energy emitted by the middle and far infrared generating part to the radiation energy emitted by the white light generating part is not less than 10%, and too much proportion can cause the problem of too high temperature, so that the proportion is preferably 15.0-50.0%.
In another preferred embodiment provided in the present application, the light source module L1 of embodiment 2 is a mixed-light white LED package chip, as shown in fig. 2, and includes an excitation light source 1 and a package portion 2 covering the excitation light source 1.
The excitation light source 1 is a blue light LED chip and is directly excited by a semiconductor material to emit light, the peak wavelength of the light emission is 430-480 nm, and the light color is blue. The LED Chip (LED Chip) comprises a positive mounting or a reverse mounting, and a single LED Chip or a plurality of LED chips are connected together in series, parallel or series-parallel.
The package portion 2 uses transparent silicone or transparent resin as the base material 204, wherein the transparent resin may be one of epoxy resin and urea resin. The base material 204 is doped with the first phosphor 201 and the second phosphor 202. Wherein the first phosphor 201 is the mid-far infrared generating part in the present embodiment. The excitation light source 1 excites the second phosphor 20 and mixes the light to generate white light, and the two are combined to form a white light generating portion.
Wherein the first phosphor 201 as the middle and far infrared generating part is a single kind phosphor arranged to be excited by the emission light of the excitation light source 1 to convert a part of the photons emitted therefrom into photons of longer wavelength. After being excited by the excitation light source 1, at least part of the radiation energy of the first phosphor 201 is within a wavelength range of 1000-3000 nm, that is, an emission peak is present within a wavelength range of 1000-3000 nm, and preferably within a wavelength range of 1400-1700 nm.
The second phosphor 202 is arranged to be excited by the light emitted from the excitation light source 1, convert a part of the photons emitted from the excitation light source 1 into longer wavelength photons, and mix the excited light with the unconverted part of the photons to generate white light having a color temperature in the range of 2700 to 6500K and a distance duv from the black body locus in the range of ± 0.005.
In order to provide white illumination light with good color rendering, the second phosphor 202 is mixed with plural kinds of phosphors having different peak wavelengthsAnd (4) synthesizing. Since the excitation light source 1 is a blue LED, the second phosphor 202 at least includes a phosphor having a wavelength longer than that of the blue light in order to generate white light. Preferably, the second phosphor 202 includes a red phosphor or an orange phosphor having a peak wavelength of 610 to 660nm and a half-width of 80 to 100 nm. In the present embodiment, the second phosphor 202 includes a red phosphor 2021. The red phosphor 2021 is a nitride phosphor having a chemical formula (Sr, Ba)2Si5N8:Eu2+、(Sr,Ca,Ba)SiAlN3:Eu2+。
In order to achieve better color rendering property, at least one kind of green phosphor with a peak wavelength of 520-560 nm or blue-green phosphor with a peak wavelength of 480-520 nm may be added to the second phosphor 202. Of course, only red phosphor or green phosphor may be selected to combine with blue light to form white light, or a combination of two red phosphors with different wavelengths, or a combination of yellow and green phosphors may be selected. Reference numeral 2021 in fig. 2 denotes green phosphor or blue-green phosphor in this embodiment. The green phosphor can be aluminate system phosphor, chemical formula Lu3Al5O12:Ce3+、Y3(Al,Ga)5O12:Ce3+(ii) a Or silicate system fluorescent powder with chemical formula (Ca, Sr, Ba)2(Mg,Zn)Si2O7:Eu2+、 (Ca,Sr,Ba)2MgSi3O5:Eu2+、β-(Sr,Ba,Ca)2SiO4:Eu2+、α-(Sr,Ba,Ca)2SiO4:Eu2+(ii) a Or nitrogen oxide system fluorescent powder with the chemical formula of beta- (Sr, Ca) SiAlON: Eu2+、α-(Sr,Ca)SiAlON:Eu2+. The blue-green fluorescent powder is aluminate system fluorescent powder with a chemical formula Lu3Al5O12:Ce3+(ii) a Or nitrogen oxide system phosphor, chemical formula BaSi2N2O2:Eu2+. The above formula is a basic formula, the molar ratio is not very precise in practical application of the phosphor, and the difference in molar ratio affects the peak wavelength of the phosphor, as can be understood by those skilled in the art.
In this embodiment, the first phosphor 201 is an infrared phosphor, and after the infrared phosphor is excited, in addition to having energy in an infrared band, radiation in other bands is emitted to form energy waste. The chemical formula of the infrared phosphor selected in this embodiment is La2O2SO4:Er3+The relative spectral energy distribution formed by the method is shown in FIG. 8, except that the radiation energy exists in the middle-infrared region of 1000-3000 nm, the redundant energy is located in the visible light wavelength range of 380-780 nm, the ratio of the radiation energy of the middle-infrared region of 1000-3000 nm to the energy of the visible light wavelength range of 380-780 nm is 67.0%, which is an actual measurement value, and the energy ratio is approximately 50.0-100.0% due to different phosphor batches. The fluorescent powder has a first emission peak, specifically 1550 +/-10 nm, in a wavelength range of 1000-3000 nm, and a second emission peak, specifically 555 +/-10 nm, in a wavelength range of 380-780 nm, and belongs to a green light wave band. In the present embodiment, the energy of the first phosphor 201 belonging to the green wavelength band also participates in the mixing of the white light. It is considered that the second phosphor 202 includes a phosphor having the same molecular chemical formula as the first phosphor 201 at the same time, except for the excess infrared energy. Certainly, there is a link between this part of energy and the energy in the mid-far infrared region, and other kinds of fluorescent powder are generally needed to be added to achieve white light color with good color rendering.
According to the actual lighting requirement, the light color temperature of the light source module L1 is within the range of 2700-6500K, and the fluorescent powder formula of different color temperatures can be slightly adjusted. Table 1 below lists the types of excitation light sources 1, first phosphors 201, and second phosphors 202 and the weights of the phosphors according to the embodiments at different color temperatures. Table 2 shows the chemical formula and peak wavelength of the phosphor in Table 1, wherein the phosphor with reference LOSO as the first phosphor 201 includes two emission peaks, as mentioned above, with an emission peak wavelength of 1550nm in the wavelength range of 1000-3000 nm and a peak wavelength of 555nm in the other emission peak in the visible light band.
TABLE 1
TABLE 2
In the embodiment, the base material 204 is silica gel, the weight is 10g, as shown in table 1, the sum of the weights of the phosphor powders of the first phosphor 201 and the second phosphor 202 is the total weight of the phosphor powders, and the weight ratio of the base material 204 to the base material is substantially in the range of 20% to 50%. The data in the table are actually measured data when manufacturing samples, and actually, in mass production, the weights of different batches of the fluorescent powder are slightly different, but the ratio of the fluorescent powder to the white light is basically in a fixed interval in order to ensure that the specific effect and the white light color proposed by the application are realized. Considering that the actual powder-to-glue ratio range of different phosphor batches can be expanded to 15% -70%. The phosphor powders in the table are weighed in proportion and mixed into the base material 204, the mixture is fully and uniformly stirred on a stirrer, so that the phosphor powders are uniformly distributed in the base material 204, and after air bubbles are removed, the base material 204 mixed with the phosphor powders is covered above an LED chip serving as the light-emitting element 1 by using a dispenser to form a packaging part 2.
The light source module L1 after the packaging is completed, the light emitted by the excitation light source 1 is mixed with the unconverted blue light, the light emitted by the first phosphor 201 in the visible light portion, and the light emitted by the second phosphor 202 to generate white light, which can be used for illumination. In addition, the first phosphor 201 radiates at the middle infrared of 1000-3000 nm, which is beneficial to human health.
Fig. 3, 4, 5, 6, and 7 are relative spectral energy distribution diagrams of the color temperature samples listed in table 1 of the light source module L1 of the present embodiment, respectively, in which the light emitted from the visible light source module L1 has an energy distribution region in the middle and far infrared wavelength bands of 1000-3000 nm and the visible light wavelength bands of 380-780 nm. As can be seen from the figure, the peak wavelength intensity of the radiation emitted by the middle and far infrared generating parts is 5.0-100.0%, and more particularly 20.0-45.0% of the peak wavelength intensity of the radiation emitted by the white light generating part. Meanwhile, the ratio of the radiant energy emitted by the middle and far infrared generating part to the radiant energy emitted by the white light generating part is not less than 10%, and is further 15.0-50.0%.
The light emission characteristics and spectral characteristics of the light emitted from the light source module L1 at each color temperature are shown in table 3.
TABLE 3
In the table, two columns x and y respectively represent coordinate values of the light color of the light emitted by the light source module L1 on the x and y axes of the CIE1931 color coordinate system, duv represents the distance and direction of the color shift from the planckian locus in the color coordinate system, and CRI and R9 are color rendering indexes. From Table 3, it can be seen that the emitted light of the light source module L1 has a higher color rendering index, and the CRI is greater than or equal to 80.0. Table 3, column 7 shows the ratio of the radiation energy of the light source module L1 in the middle and far infrared wavelength range of 1000-3000 nm to the radiation energy of the visible light wavelength range of 380-780 nm, which falls substantially within the interval of 15-35%. In other preferred embodiments, the energy ratio of the mid-far infrared part can be larger but should not be smaller than 10% in order to highlight the effect of mid-far infrared, and the energy ratio can be adjusted by the ratio of fluorescence. Table 3, column 8 shows the ratio of the peak wavelength intensity of the light source module L1 at the middle and far infrared wavelengths of 1000-3000 nm to the peak wavelength intensity at the visible wavelengths of 380-780 nm, which is basically in the range of 25-45%.
The above embodiments are all customized light source modules according to the features of the present application, and for a lamp using a conventional white light chip, it is also desirable to achieve the health effect proposed by the present application, so that the present application further provides another embodiment of the lamp. The lamp D1 is a lamp panel, and as shown in fig. 9, includes a bottom plate 6, a face frame 8 provided with a diffusion plate 9, a mid-far infrared radiation source 3 and a white light source 4 provided on a light source plate 5. Wherein the radiation energy emitted by the infrared LED is within the range of more than or equal to 1000nm to less than or equal to 3000nm by the medium and far infrared radiation source 3. The white light source 4 is a white light LED, and the color temperature is 2500K-6500K, and duv = -0.005. The ratio of the radiation energy emitted by the medium and far infrared radiation source 3 to the radiation energy emitted by the white light source 4 is not less than 10%, and is preferably 15.0-50.0%.
The lamp D1 further includes a power module 7 for supplying power required for operation to the mid-far infrared radiation source 3 and the white light source 4, and the lamp D1 may further include a controller, a heat sink, a light distribution component, and the like according to the function and the requirement of the specific lamp. The controller can be used for controlling the current and the voltage which are respectively provided by the power module 7 to the middle and far infrared radiation source 3 and the white light source 4, and can be independently adjusted according to the requirements, so that the ratio of the energy between the visible light wave band and the middle and far infrared wave band is changed, and different effects are realized. The light distribution part may be a lamp cover, a lens, a diffusion element, a light guide, etc. besides the diffusion plate in the embodiment, which is not limited in the present application.
Any general product on the current market can be selected as the white light source, and the ratio of the middle-infrared radiation energy to the overall emergent light can be ensured within the range of 1000-3000 nm. Therefore, in other preferred embodiments, the mid-far infrared radiation source can be added into various lamps such as existing ceiling lamps, wall lamps, spot lamps and down lamps, and therefore the purpose of the invention is achieved. The far infrared radiation source can slightly influence the overall performance of the lamp in the existing lamp, and the light emitting effect of the far infrared radiation source is slightly inferior to that of the light source module provided by the application, so that the improvement of the existing product can be conveniently realized.
The foregoing description of the preferred embodiments of the present application has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the application to the precise forms disclosed, and it will be apparent that numerous modifications and variations, which may be apparent to those skilled in the art, are possible and are included within the scope of the invention as defined by the appended claims.
Claims (17)
1. A light source module is characterized by comprising a white light generating part and a middle and far infrared generating part, wherein the white light generating part emits white light, and the middle and far infrared generating part has radiation energy within the wavelength range of 1000-3000 nm.
2. The light source module as claimed in claim 1, wherein the mid-far infrared generator has an emission peak in a wavelength range of 1400-1700 nm.
3. The light source module as claimed in claim 1, wherein the white light generator emits light with a color temperature of 2500K-6500K, duv = -0.005.
4. The light source module as claimed in claim 1, wherein the ratio of the radiant energy emitted from the mid-far infrared generator to the radiant energy emitted from the white light generator is not less than 10%.
5. The light source module as claimed in claim 4, wherein the radiant energy emitted from the mid-far infrared generator is 15.0-50.0% of the radiant energy emitted from the white light generator.
6. The light source module as claimed in claim 1, wherein the peak wavelength intensity of radiation emitted from the mid-far infrared generator is 5.0-100.0% of the peak wavelength intensity of radiation emitted from the white light generator.
7. The light source module as claimed in claim 6, wherein the peak wavelength intensity of radiation emitted from the mid-far infrared generator is 20.0-45.0% of the peak wavelength intensity of radiation emitted from the white light generator.
8. The light source module as claimed in claim 1, wherein the white light generating part comprises:
an excitation light source with a peak wavelength of 430-480 nm;
a second phosphor arranged to be excited by light emitted by the excitation light source to convert a portion of the photons emitted by the excitation light source into longer wavelength photons.
9. The light source module as claimed in claim 8, wherein the second phosphor comprises at least one of red phosphor or orange phosphor with a peak wavelength of 610-660 nm;
and/or at least one green fluorescent powder with the peak wavelength of 520-560 nm.
10. The light source module as claimed in claim 9, wherein the mid-far infrared generator is made of a phosphor material, called a first phosphor, and at least a part of the radiation energy of the first phosphor after being excited by the excitation light source is within a wavelength range of 1000-3000 nm.
11. The light source module as claimed in claim 10, wherein at least one phosphor of the second phosphor has the same chemical formula as the first phosphor.
12. The light source module as claimed in claim 8, wherein the mid-far infrared generating part is an LED.
13. The lamp is characterized by comprising a lamp body, a middle and far infrared radiation source and a white light source, wherein the radiation energy emitted by the middle and far infrared radiation source is within the range of more than or equal to 1000nm and less than or equal to 3000 nm.
14. The lamp as claimed in claim 13, wherein the white light source emits light with a color temperature of 2500K-6500K, duv = -0.005.
15. The light source module as claimed in claim 13, wherein the ratio of the radiant energy emitted from the mid-far infrared radiation source to the radiant energy emitted from the white light source is not less than 10%.
16. The light source module of claim 15, wherein the mid-ir source emits radiation energy in the range of 15.0-50.0% of the radiation energy emitted by the white light source.
17. A lamp as claimed in any one of claims 13 to 18, wherein the source of mid-far infrared radiation and the source of white light are LEDs.
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| CN202111326330.6A CN114050213A (en) | 2021-11-10 | 2021-11-10 | Light source module and lamp |
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| CN202111326330.6A CN114050213A (en) | 2021-11-10 | 2021-11-10 | Light source module and lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597014A (en) * | 2022-10-21 | 2023-01-13 | 广州市巨宏光电有限公司（Cn） | Healthy lighting lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115597014A (en) * | 2022-10-21 | 2023-01-13 | 广州市巨宏光电有限公司（Cn） | Healthy lighting lamp |
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