Study-state bio-optical spectrum LED light source and manufacturing method therefor

Abstract

A study-state bio-optical spectrum LED light source and a manufacturing method therefor. The study-state bio-optical spectrum LED light source comprises a plurality of LED dies, a holder (15), and a phosphor encapsulant (16). The holder (15) is provided with a reflector cup (14) and positive and negative electrodes (10). The plurality of LED dies are all disposed in the reflector cup (14) and are connected to the positive and negative electrodes (10) by means of gold-wire bonding. The phosphor encapsulant (16) coats each LED die. The plurality of LED dies comprise a first LED die (11), a second LED die (12), and a third LED die (13). With regard to the study-state bio-optical spectrum LED light source, the color temperature is between 3300 and 4700 K, chromaticity points are controlled between a Duv=0.0045 curve and a Duv=-0.003 curve, the luminous efficacy of radiation (LER) is 6% higher than that of sunlight of the same color temperature, the S / P ratio and the M / P ratio remain substantially equal to those of the sunlight of the same color temperature, and the spectral similarity index (SSI) (350–830 nm) with respect to the sunlight of the same color temperature is great than 83.

Description

Learning state biological light spectrum LED light source and preparation method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of LED, in particular to a learning state biological light spectrum LED light source and preparation method thereof. BACKGROUND

[0002] The current learning working lighting lamp with color temperature of 3500-5000K can meet the RG0 standard, but lacks infrared component, the spectral content of 700-1000nm is less than 10%, and the spectral similarity SSI(350-830nm) is less than 80. It cannot completely rival sunlight and needs to be improved. SUMMARY

[0003] In order to solve the above-mentioned problems existing in the prior art, the present application provides a learning state biological light spectrum LED light source and preparation method thereof.

[0004] The present application adopts the following technical solution to solve the above technical problems: a learning state biological light spectrum LED light source comprising a plurality of LED wafers, a bracket and fluorescent glue, the bracket has a bowl cup and positive and negative electrodes, the plurality of LED wafers are arranged in the bowl cup, and each LED wafer is connected with the positive and negative electrodes through gold wire bonding, and the fluorescent glue is coated on each LED wafer.

[0005] The plurality of LED wafers comprise a first LED wafer with a main wavelength of 440-445nm, a second LED wafer with a main wavelength of 450-455nm and a third LED wafer with a main wavelength of 460-465nm, and the naked crystal peak spectral energy ratio of the first, second and third LED wafers is: Φe(440-445nm): Φe(450-455nm): Φe(460-465nm)=(0.4-0.7):(0.8-1.0):(0.6-1.0).

[0006] The color temperature of the learning state biological light spectrum LED light source is between 3300-4700K, the landing point is controlled between the Duv=0.0045 curve and the Duv=-0.003 curve, the LER light efficiency is more than 6% higher than that of the same color temperature sunlight, the S / P ratio and the M / P ratio are basically the same as those of the same color temperature sunlight, and the spectral similarity SSI(350-830nm) with the same color temperature sunlight is more than 83.

[0007] A preparation method of a learning state biological light spectrum LED light source, comprising the following steps:

[0008] S100: disposing the first LED wafer, the second LED wafer and the third LED wafer in the bowl cup, and fixing them on the support by die bonding machine through insulating glue or silver glue, and after the die bonding is completed, baking in an oven at a temperature of 150-160 DEG C for 2h+ / -10min, so that the first LED wafer, the second LED wafer and the third LED wafer are completely fixed in the bowl cup;

[0009] S200: by gold wire welding machine, using gold wire bonding to make the first LED wafer, the second LED wafer and the third LED wafer connected with the positive and negative electrodes;

[0010] S300: preparing a fluorescent glue solution, which is a mixture of glue, blue-green powder, red powder and infrared fluorescent powder;

[0011] S400: pouring the prepared fluorescent glue solution into the glue barrel of the glue dispensing machine, and after the glue dispensing and bubble removing are completed, dispensing the fluorescent glue solution in the bowl cup according to the color parameter requirements, and after the dispensing is completed, baking under the condition of 80 DEG C / 0.5H+160 DEG C / 4H;

[0012] S500: after the baked LED light source is degerminated, using a spectrometer to split light according to the given color parameter, so that the light color quality formed in the bowl cup meets the S / P ratio and the M / P ratio, and is basically flat with the same color temperature sunlight, the color temperature meets the specified chromaticity standard color temperature, the chromaticity coordinate meets the 3-order color tolerance chromaticity standard, the similarity coefficient SSI(350-830nm) with the same color temperature sunlight spectrum is greater than 83, and the blue light hazard efficiency K B，V of the same color temperature sunlight is lower than that of the same color temperature sunlight. B，V , which meets the blue light exemption RG0 standard.

[0013] Compared with the prior art, the learning state biological light spectrum LED light source can simulate the sunlight spectrum, the S / P ratio (dark photopic brightness ratio) is basically flat with the same color temperature sunlight, that is, the infrared component is high, close to the sunlight, which is beneficial to the eye relaxation angle and plays a role in comfortable and healthy light environment; the M / P ratio (non-photopic brightness ratio) is basically flat with the same color temperature sunlight, which can inhibit the secretion of melatonin and play a role in improving attention and learning ability; at the same time, the MDER, the melanopsin equivalent daylight efficiency is flat with the same color temperature sunlight, which is beneficial to the eye relaxation and clearer vision; the COI (acid glycoside index) is less than 3.3, which meets the medical light source standard; the crop photon utilization rate is high, the German standard crop photon utilization rate is high, the chlorophyll utilization rate is basically flat with the same color temperature sunlight, which is beneficial to the growth and development of plants. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic view of the learning state biological light spectrum LED light source provided by the embodiment of the present application.

[0015] Figure 2 is a cross-sectional view of the learning state biological light spectrum LED light source according to an embodiment of the present application.

[0016] Figure 3 is a comparison chart of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 3500K sunlight spectrum.

[0017] Figure 4 is a comparison chart of the power distribution curve of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 3500K sunlight spectrum.

[0018] Figure 5 is a comparison chart of the blue light hazard efficiency K B，V of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 3500K sunlight spectrum.

[0019] Figure 6 is a calculation chart of the spectral similarity of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 3500K sunlight spectrum.

[0020] Figure 7 is a TLCI-2012 chart of the learning state biological light spectrum LED light source according to an embodiment of the present application.

[0021] Figure 8 is a test report chart of the learning state biological light spectrum LED light source according to an embodiment of the present application.

[0022] Figure 9 is a calculation comparison chart of the plant lighting of the learning state biological light spectrum LED light source according to an embodiment of the present application.

[0023] Figure 10 is a calculation result comparison chart of the spectral plant chlorophyll a, b utilization rate of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 3500K sunlight spectrum.

[0024] Figure 11 is a comparison chart of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 4000K sunlight spectrum.

[0025] Figure 12 is a comparison chart of the power distribution curve of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 4000K sunlight spectrum.

[0026] Figure 13 is a comparison chart of the blue light hazard efficiency K B，V of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 4000K sunlight spectrum.

[0027] Figure 14 is a calculation chart of the spectral similarity of the learning state biological light spectrum LED light source according to an embodiment of the present application and the 4000K sunlight spectrum.

[0028] Figure 15 is a TLCI-2012 chart of the learning state biological light spectrum LED light source according to an embodiment of the present application.

[0029] Figure 16 is a test report graph of the learning state bioluminescent spectrum LED light source of the second embodiment of the present application.

[0030] Figure 17 is a plant lighting calculation comparison graph of the learning state bioluminescent spectrum LED light source of the second embodiment of the present application.

[0031] Figure 18 is a spectrum plant chlorophyll a, b utilization rate calculation result comparison graph of the learning state bioluminescent spectrum LED light source of the second embodiment of the present application and the 4000K sunlight spectrum.

[0032] Figure 19 is a comparison graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application and the 4500K sunlight spectrum.

[0033] Figure 20 is a power distribution curve comparison graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application and the 4500K sunlight spectrum.

[0034] Figure 21 is a blue light hazard efficiency K B，V comparison graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application and the 4500K sunlight spectrum.

[0035] Figure 22 is a spectrum similarity calculation graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application and the 4500K sunlight spectrum.

[0036] Figure 23 is a television lighting index TLCI-2012 graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application.

[0037] Figure 24 is a test report graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application.

[0038] Figure 25 is a plant lighting calculation comparison graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application.

[0039] Figure 26 is a spectrum plant chlorophyll a, b utilization rate calculation result comparison graph of the learning state bioluminescent spectrum LED light source of the third embodiment of the present application and the 4500K sunlight spectrum.

[0040] Figure 27 is a bare chip spectrum power distribution curve graph of the learning state bioluminescent spectrum LED light source of the present application.

[0041] Figure 28 is a binning graph of the learning state bioluminescent spectrum LED light source of the first to fourth embodiments of the present application.

[0042] Reference signs: 10—positive and negative poles, 11—first LED wafer, 12—second LED wafer, 13—third LED wafer, 14—bowl cup, 15—support, 16—fluorescent glue. DETAILED DESCRIPTION

[0043] The technical solutions of the present application will be further described in detail below in combination with Figs. 1-28. It should be understood that these embodiments are only used for illustrating the present application and are not used for limiting the scope of the present application. Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the embodiments can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0044] It should be noted that the blue light hazard efficiency K B，V can be calculated, that is, the ratio of the blue light hazard weighted luminance L B and the corresponding luminous quantity, and the calculation formula is:

[0045] Wherein, K m =683 lm / W, V(λ) is the spectral luminous efficiency (or visual function), and B(λ) is the blue light hazard weighting function. K B，V characterizes the relative amount of blue light component in visible radiation, and under the condition that the brightness of the lighting product is the same, the higher K B，V , the greater the possibility of retinal damage of the light source.

[0046] As shown in Figs. 1-2, the learning state biological light spectrum LED light source provided by the embodiment of the present application comprises a plurality of LED chips, a bracket 15 and a fluorescent glue 16, the bracket 15 is provided with a bowl cup 14 and positive and negative electrodes 10, a plurality of the LED chips are arranged in the bowl cup 14, and each of the LED chips is connected with the positive and negative electrodes 10 through gold wire bonding, and the fluorescent glue 16 is coated on each of the LED chips.

[0047] The plurality of LED chips comprise a first LED chip 11 with a main wavelength of 440-445 nm, a second LED chip 12 with a main wavelength of 450-455 nm and a third LED chip 13 with a main wavelength of 460-465 nm.

[0048] As shown in Fig. 27, in the learning state biological light spectrum LED light source of the present application, the ratio of the peak spectral energy of the first LED chip 11, the second LED chip 12 and the third LED chip 13 is: e (440-445 nm): Φ e (450-455 nm): Φ e(460-465nm) = (0.4-0.7) : (0.8-1.0) : (0.6-1.0). Specifically, the bare die peak spectral energy ratio of the first LED wafer 11, the second LED wafer 12 and the third LED wafer 13 can be 0.4:0.8:0.6 or 0.7:1.0:1.0 or 0.5:0.9:0.8.

[0049] As shown in FIGS. 27 and 28, the color temperature of the learning state biological light spectrum LED light source of the embodiment is between 3300K and 4700K, the landing point is controlled between the Duv=0.0045 curve and the Duv=-0.003 curve, the LER light efficiency is more than 6% higher than that of the sunlight of the same color temperature, the S / P ratio and the M / P ratio are basically the same as those of the sunlight of the same color temperature, and the spectral similarity SSI(350-830nm) is greater than 83.

[0050] The learning state biological light spectrum LED light source of the embodiment can simulate the sunlight spectrum, the S / P ratio (dark photopic brightness ratio) is basically the same as that of the sunlight of the same color temperature, that is, the infrared component is relatively high and close to the sunlight, which is beneficial to the eye relaxation and the comfortable and healthy light environment; the M / P ratio (non-photopic brightness ratio) is basically the same as that of the sunlight of the same color temperature, which can inhibit the secretion of melatonin and improve the attention and learning ability; meanwhile, the MDER, the melanopsin equivalent daylight efficiency is basically the same as that of the sunlight of the same color temperature, which is beneficial to the eye relaxation and the clearer visual field; the COI (chlorophyllous index) is less than 3.3, which meets the medical light source standard; the crop photon utilization rate is high, the German crop photon utilization rate is high, the chlorophyll utilization rate is basically the same as that of the sunlight of the same color temperature, and the plant growth and development are beneficial.

[0051] The learning state biological light spectrum LED light source of the embodiment will be described in detail in the following four embodiments.

[0052] Embodiment one.

[0053] The learning state biological light spectrum LED light source of the embodiment will be further described in combination with FIGS. 3-10 and 28.

[0054] The fluorescent glue 16 is formed by preparing a 3500K fluorescent glue solution, and the 3500K fluorescent glue solution is formed by mixing glue and blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 535-545nm, red powder with an emission wavelength of 630-640nm, red powder with an emission wavelength of 650-660nm, infrared fluorescent powder with an emission wavelength of 725-735nm and infrared fluorescent powder with an emission wavelength of 760-780nm.

[0055] Further, the 3500K fluorescent glue solution has a mass ratio of glue: blue-green powder with an emission wavelength of 490-500nm: green powder with an emission wavelength of 535-545nm: red powder with an emission wavelength of 630-640nm: red powder with an emission wavelength of 650-660nm: infrared fluorescent powder with an emission wavelength of 725-735nm: infrared fluorescent powder with an emission wavelength of 760-780nm = 3:(0.1-0.25):(1.45-1.65):(0.08-0.11):(0.1-0.14):(0.7-1.0):(0.3-0.5). Specifically, the mass ratio of glue: blue-green powder with an emission wavelength of 490-500nm: green powder with an emission wavelength of 535-545nm: red powder with an emission wavelength of 630-640nm: red powder with an emission wavelength of 650-660nm: infrared fluorescent powder with an emission wavelength of 725-735nm: infrared fluorescent powder with an emission wavelength of 760-780nm can be 3:0.1:1.45:0.08:0.1:0.7:0.3 or 3:0.25:1.65:0.11:0.14:1.0:0.5 or 3:0.2:1.55:0.09:0.12:0.9:0.4.

[0056] In the embodiment, the blue-green powder with an emission wavelength of 490-500nm is Lu3Al5O 12 :Ce 3+ , and has a half wave width of 80-90nm. For example, the half wave width is 80nm, 85nm or 90nm.

[0057] The green powder with an emission wavelength of 535-545nm is Lu3Al5O 12 :Ce 3+ , and has a half wave width of 95-105nm. For example, the half wave width is 95nm, 100nm or 105nm.

[0058] The red powder with an emission wavelength of 630-640nm is CaAlSiN3:Eu, and has a half wave width of 60-80nm. For example, the half wave width is 60nm, 70nm or 80nm.

[0059] The red powder with an emission wavelength of 650-660nm is CaAlSiN3:Eu, and has a half wave width of 95-105nm. For example, the half wave width is 95nm, 100nm or 105nm.

[0060] The infrared fluorescent powder with an emission wavelength of 725-735nm is Ga4GeO8:Cr 3+ , and has a half wave width of 140-160nm. For example, the half wave width is 140nm, 150nm or 160nm.

[0061] The infrared fluorescent powder with emission wavelength of 760-780 nm is Ga4GeO8:Cr 3+ The component has a half-wave width of 140-160 nm. For example, the half-wave width is 140 nm, 150 nm, or 160 nm.

[0062] In combination with FIG. 3, the light color quality of the 3500K spectral LED of the learning state biological light spectral LED light source of the present embodiment meets the relative spectral height as shown in Table 1 below:

[0063] From the above Table 1 and in combination with FIG. 3, it can be known that the learning state biological light spectral LED light source of the present embodiment has:

[0064] 1. 350-500 nm <0.55, 500-600 nm <0.7, 600-650 nm <0.9, 650-700 nm >0.8, 700-750 nm >0.85, 750-800 nm >0.55, 800-850 nm >0.25, and the peak wavelength is between 680-740 nm;

[0065] 2. Spectral content: Фe(350-399 nm): Фe(400-499 nm): Фe(500-599 nm): Фe(600-699 nm): Фe(700-1000 nm)=(0-0.1%):(8.8%-9.8%):(21%-22%):(28.2%-29.2%):(39.0%-41.0%);

[0066] 3. Blue-violet light content Фe(350-499 nm) <10%;

[0067] 4. Infrared spectral content 700-1000 nm is flat with the same color temperature 3500K sunlight.

[0068] In the present embodiment, in combination with FIGS. 4-5, it can be known that the blue light hazard efficiency K B，V of the learning state biological light spectral LED light source of the present embodiment is 0.000405831, which is lower than the blue light hazard efficiency K B，V of the same color temperature sunlight (K B， V / K B，V (3500K sunlight)=86.05%), which meets the blue light exemption RG0 standard and is more healthy for eye protection spectrum.

[0069] In this embodiment, as can be known from FIG. 6, the learning state biological light spectrum LED light source of this embodiment has a spectral similarity SSI (350-830 nm) > 85 with 3500K sunlight spectrum, excellent spectral similarity parameter, restores natural light color, and makes people experience nature and enjoy sunshine bathing.

[0070] Further, the light color electrical parameter of the learning state biological light spectrum LED light source of this embodiment is as shown in Table 2:

[0071] The light color parameter meets:

[0072] 1. Ra > 95, R1-15 > 90;

[0073] 2. CQS (color quality index) > 95;

[0074] 2. TM-30-20, Rg > 98, Rf > 95, Rf, skin > 95;

[0075] 3. television lighting index TLCI-2012 > 99;

[0076] 4. BPE (350-1000 nm) light quantum flux effective efficiency = BPF (light quantum flux) / Фe (light power) > 5.5 μmol / J;

[0077] 5. LER (effective light efficiency) = Ф (light flux) / Фe (light power) > 170 Lm / W, which is 16.67% higher than the sunlight of the same color temperature 3500K (LER = 150 lm / w);

[0078] 6. COI (acid glycoside index) < 3.3, meeting the medical light source standard.

[0079] The learning state biological light spectrum LED light source of this embodiment has a S / P ratio, M / P ratio and SSI (spectral similarity) with sunlight as shown in Table 3:

[0080] In combination with Table 3 and Figs. 6-7, it can be seen that the learning state biological light spectrum LED light source of the present embodiment has the same S / P ratio (scotopic photopic ratio) as the sunlight with the same color temperature of 3500K, is conducive to eye relaxation, and provides a comfortable and healthy light environment and clear and bright vision. The M / P ratio (mesopic photopic ratio) is the same as the sunlight with the same color temperature of 3500K, inhibits the secretion of melatonin, and is conducive to more abundant human energy and more concentrated learning. The high SSI (350-830nm) spectral similarity, 100% reduction of natural light color, is more healthy and more ecological. The high TLCI-2012 parameter, illumination on books or fonts, restores clearer vision, and the human body or equipment can see more clearly. The MDER, melanopsin equivalent daylight efficiency, is the same as the sunlight with the same color temperature of 3500K, is conducive to eye relaxation, and the visual field is clearer. The S / P ratio (scotopic photopic ratio) is 1.89% higher than the sunlight with the same color temperature of 2200K, which is conducive to eye relaxation.

[0081] In combination with Figs. 9-10, it can be seen that the learning state biological light spectrum LED light source of the present embodiment can be applied to the field of 3500K plant lighting, the crop photon utilization rate is >95%, the German standard crop photon utilization rate is >73%. The chlorophyll utilization rate is basically the same as the sunlight with the same color temperature, which is conducive to plant growth and development.

[0082] Example Two.

[0083] The learning state biological light spectrum LED light source of the present embodiment is further described in combination with Figs. 11-18 and 28.

[0084] The fluorescent glue 16 is formed by preparing a 4000K fluorescent glue solution, and the 4000K fluorescent glue solution is formed by mixing glue and blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 535-545nm, red powder with an emission wavelength of 630-640nm, red powder with an emission wavelength of 655-665nm, infrared fluorescent powder with an emission wavelength of 725-735nm, infrared fluorescent powder with an emission wavelength of 760-780nm, and infrared fluorescent powder with an emission wavelength of 830-850nm.

[0085] Further, the 4000K fluorescent glue solution has a mass ratio of glue: blue-green powder with an emission wavelength of 490-500 nm: green powder with an emission wavelength of 535-545 nm: red powder with an emission wavelength of 630-640 nm: red powder with an emission wavelength of 655-665 nm: infrared fluorescent powder with an emission wavelength of 725-735 nm: infrared fluorescent powder with an emission wavelength of 760-780 nm: infrared fluorescent powder with an emission wavelength of 830-850 nm = 3:(0.3-0.45):(1.25-1.35):(0.06-0.09):(0.06-0.09):(0.6-0.9):(0.1-0.3):(0.2-0.5). Specifically, the mass ratio of glue: blue-green powder with an emission wavelength of 490-500 nm: green powder with an emission wavelength of 535-545 nm: red powder with an emission wavelength of 630-640 nm: red powder with an emission wavelength of 655-665 nm: infrared fluorescent powder with an emission wavelength of 725-735 nm: infrared fluorescent powder with an emission wavelength of 760-780 nm: infrared fluorescent powder with an emission wavelength of 830-850 nm can be 3:0.3:1.25:0.06:0.06:0.6:0.1:0.2 or 3:0.45:1.35:0.09:0.09:0.9:0.3:0.5 or 3:0.4:1.3:0.07:0.08:0.8:0.2:0.3.

[0086] In this embodiment, the blue-green powder with an emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ , and has a half-wave width of 80-90 nm; for example, a half-wave width of 80 nm, 85 nm, or 90 nm.

[0087] The green powder with an emission wavelength of 535-545 nm is Lu3Al5O 12 :Ce 3+ , and has a half-wave width of 95-105 nm; for example, a half-wave width of 95 nm, 100 nm, or 105 nm.

[0088] The red powder with an emission wavelength of 630-640 nm is CaAlSiN3:Eu, and has a half-wave width of 60-80 nm; for example, a half-wave width of 60 nm, 70 nm, or 80 nm.

[0089] The red powder with an emission wavelength of 655-665 nm is CaAlSiN3:Eu, and has a half-wave width of 95-105 nm; for example, a half-wave width of 95 nm, 100 nm, or 105 nm.

[0090] The infrared fluorescent powder with an emission wavelength of 725-735 nm is Ga4GeO8:Cr3+ The composition has a half wave width of 140-160 nm; for example, the half wave width is 140 nm, 150 nm, or 160 nm.

[0091] The infrared fluorescent powder emitting a wavelength of 760-780 nm is Ga4GeO8:Cr 3+ The composition has a half wave width of 140-160 nm; for example, the half wave width is 140 nm, 150 nm, or 160 nm.

[0092] The infrared fluorescent powder emitting a wavelength of 830-850 nm is Ga4GeO8:Cr 3+ The composition has a half wave width of 140-160 nm; for example, the half wave width is 140 nm, 150 nm, or 160 nm.

[0093] In combination with FIG. 11, the light color quality of the 4000K spectral LED of the learning state biological light spectral LED light source of the present embodiment meets the relative spectral height as shown in Table 4 below:

[0094] From the above Table 4 and in combination with FIG. 11, it can be seen that the learning state biological light spectral LED light source of the present embodiment:

[0095] 1. 350-500 nm <0.80, 500-600 nm <0.9, 600-650 nm >0.9, 650-700 nm >0.8, 700-750 nm >0.8, 750-800 nm >0.6, 800-850 nm >0.35, peak wavelength between 600-740 nm;

[0096] 2. Spectral content: Фe(350-399 nm): Фe(400-499 nm): Фe(500-599 nm): Фe(600-699 nm): Фe(700-1000 nm)=(0-0.1%):(12.2%-13.2%):(23%-24%):(26%-28%):(35.5%-37.5%);

[0097] 3. Blue-violet light content Фe(350-499 nm) <13%;

[0098] 4. There is a small wave peak in the 680-800 nm spectrum, and the peak wavelength is between 680-710 nm, which plays a role in stimulating micro-infrared light and inhibiting axial elongation, thereby playing a role in myopia prevention and control, and the eyes are healthier;

[0099] 5. The infrared light content Фe(700-1000 nm) is 15% higher than the same color temperature sunlight 4000K.

[0100] In this embodiment, as can be seen from FIGS. 12-14, the blue light hazard efficiency K of the learning state biophotonic spectrum LED light source of this embodiment B，V = 0.000512385, and the blue light hazard efficiency K of the sunlight with the same color temperature (4000K sunlight) = 96.79%, which meets the blue light exemption RG0 standard and the eye protection spectrum is healthier. B，V B， V B，V (4000K sunlight) = 96.79%), which meets the blue light exemption RG0 standard and the eye protection spectrum is healthier.

[0101] In this embodiment, as can be seen from FIG. 15, the spectral similarity SSI (350-830nm) of the learning state biophotonic spectrum LED light source of this embodiment and the 4000K sunlight spectrum is greater than 83, which is an excellent spectral similarity parameter, restores the color of natural light, and allows people to experience nature and enjoy the sun shower.

[0102] Further, the light color electrical parameters of the learning state biophotonic spectrum LED light source of this embodiment are as shown in Table 5:

[0103] The light color parameters meet:

[0104] 1. Ra > 95, R1-15 > 90;

[0105] 2. CQS (color quality index) > 95;

[0106] 3. TM-30-20, Rg > 98, Rf > 95, Rf, skin > 95;

[0107] 4. Television lighting index TLCI-2012 > 99;

[0108] 5. BPE (350-1000nm) light quantum flux effective efficiency = BPF (light quantum flux) / Фe (light power) > 5.40 μmol / J;

[0109] 6. LER (effective light efficiency) = Ф (light flux) / Фe (light power) > 190 Lm / W, which is 7.95% higher than the sunlight with the same color temperature (LER = 176 lm / w) of 2500K;

[0110] 7. COI (erythema index) < 3.3, which meets the medical light source standard.

[0111] The S / P ratio, M / P ratio, and SSI (spectral similarity) of the learning state biophotonic spectrum LED light source of this embodiment and the sunlight are as shown in Table 6:

[0112] ​​As can be seen from Table 6 and Figs. 15-16, the learning state biological light spectrum LED light source of the embodiment has a higher S / P ratio (ratio of photopic luminosity) than the sunlight with the same color temperature of 4000K, which is beneficial to relaxing the viewing angle of the eye, and plays a role in comfortable and healthy light environment and clear and bright viewing. The M / P ratio (ratio of scotopic luminosity) is lower than the sunlight with the same color temperature of 4000K, which inhibits the secretion of melatonin and makes the spirit more vigorous. The high SSI (350-830nm) spectral similarity, 100% reduction of natural light color, is more healthy and more ecological. The high TLCI-2012 parameter, illumination on books or fonts, restores clearer, and the human body or equipment can see more clearly. The MDER, melanopsin equivalent daylight efficiency, is the same as the sunlight with the same color temperature of 4000K, which is beneficial to the eyes to relax and the field of view to be clearer.

[0113] As can be seen from Figs. 17-18, the learning state biological light spectrum LED light source of the embodiment can be applied to the field of 4000K plant lighting, with a crop photon utilization rate of >93% and a German crop photon utilization rate of >73%. The chlorophyll utilization rate is basically the same as the sunlight with the same color temperature, which is beneficial to the growth and development of plants.

[0114] Example Three.

[0115] The learning state biological light spectrum LED light source of the embodiment is further described in combination with Figs. 19-26 and 28.

[0116] The fluorescent glue 16 is formed by preparing a 4500K fluorescent glue solution, and the 4500K fluorescent glue solution is formed by mixing glue with blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 535-545nm, red powder with an emission wavelength of 630-640nm, red powder with an emission wavelength of 655-665nm, infrared fluorescent powder with an emission wavelength of 725-735nm, infrared fluorescent powder with an emission wavelength of 760-780nm, and infrared fluorescent powder with an emission wavelength of 830-850nm.

[0117] Further, the 4500K fluorescent glue solution has a mass ratio of glue: blue-green powder with an emission wavelength of 490-500 nm: green powder with an emission wavelength of 535-545 nm: red powder with an emission wavelength of 630-640 nm: red powder with an emission wavelength of 655-665 nm: infrared fluorescent powder with an emission wavelength of 725-735 nm: infrared fluorescent powder with an emission wavelength of 760-780 nm: infrared fluorescent powder with an emission wavelength of 830-850 nm = 3:(0.3-0.45):(0.8-1.00):(0.05-0.07):(0.05-0.07):(0.6-0.9):(0.05-0.18):(0.15-0.35). Specifically, the mass ratio of glue: blue-green powder with an emission wavelength of 490-500 nm: green powder with an emission wavelength of 535-545 nm: red powder with an emission wavelength of 630-640 nm: red powder with an emission wavelength of 655-665 nm: infrared fluorescent powder with an emission wavelength of 725-735 nm: infrared fluorescent powder with an emission wavelength of 760-780 nm: infrared fluorescent powder with an emission wavelength of 830-850 nm can be 3:0.3:0.8:0.05:0.05:0.6:0.05:0.15. Or 3:0.45:1.00:0.07:0.07:0.9:0.18:0.35 or 3:0.4:0.9:0.06:0.06:0.8:0.1:0.2.

[0118] In this embodiment, the blue-green powder with an emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ component, and has a half wave width of 80-90 nm; for example, the half wave width is 80 nm, 85 nm or 90 nm.

[0119] The green powder with an emission wavelength of 535-545 nm is a Lu3Al5O 12 :Ce 3+ component, and has a half wave width of 95-105 nm; for example, the half wave width is 95 nm, 100 nm or 105 nm.

[0120] The red powder with an emission wavelength of 630-640 nm is a CaAlSiN3:Eu component, and has a half wave width of 60-80 nm; for example, the half wave width is 60 nm, 70 nm or 80 nm.

[0121] The red powder with an emission wavelength of 655-665 nm is a CaAlSiN3:Eu component, and has a half wave width of 95-105 nm; for example, the half wave width is 95 nm, 100 nm or 105 nm.

[0122] The infrared fluorescent powder with an emission wavelength of 725-735 nm is Ga4GeO8:Cr3+ The composition has a half wave width of 140-160 nm; for example, the half wave width is 140 nm, 150 nm, or 160 nm.

[0123] The infrared fluorescent powder emitting a wavelength of 760-780 nm is Ga4GeO8:Cr 3+ The composition has a half wave width of 140-160 nm; for example, the half wave width is 140 nm, 150 nm, or 160 nm.

[0124] The infrared fluorescent powder emitting a wavelength of 830-850 nm is Ga4GeO8:Cr 3+ The composition has a half wave width of 140-160 nm; for example, the half wave width is 140 nm, 150 nm, or 160 nm.

[0125] In combination with FIG. 17, the light color quality of the 4500K spectral LED of the learning state biological light spectral LED light source of the present embodiment meets the relative spectral height as shown in Table 7 below:

[0126] From the above Table 7 and in combination with FIG. 19, it can be seen that the learning state biological light spectral LED light source of the present embodiment has:

[0127] 1. 500-750 nm > 0.8, 750-800 nm > 0.60, 800-850 nm > 0.4, and the peak wavelength is between 440-460 nm;

[0128] 2. Spectral content: Фe(350-399 nm): Фe(400-499 nm): Фe(500-599 nm): Фe(600-699 nm): Фe(700-1000 nm) = (0-0.1%) : (13.5%-14.5%) : (23.1%-24.1%) : (24%-26%) : (36%-38%);

[0129] 3. Blue-violet light content Фe(350-499 nm) < 14%.

[0130] 4. Infrared light content Фe(700-1000 nm) is 15% higher than the same color temperature sunlight 4500K.

[0131] In the present embodiment, in combination with FIGS. 20-21, it can be seen that the blue light hazard efficiency K B，V of the learning state biological light spectral LED light source of the present embodiment is 0.000576211, which is lower than the blue light hazard efficiency K B，V of the same color temperature sunlight (K B， V / K B，V(4500K sunlight) = 90.04%, which meets the blue light exemption RG0 standard and is more healthy for the eye spectrum.

[0132] In this embodiment, as shown in FIG. 22, the learning state biological light spectrum LED light source has a spectral similarity SSI (350-830nm) > 83 with 4500K sunlight, which is an excellent spectral similarity parameter and restores the natural light color, allowing people to experience nature and enjoy the sun shower.

[0133] Further, the light color and electrical parameters of the learning state biological light spectrum LED light source of this embodiment are as shown in Table 8:

[0134] The light color parameters meet:

[0135] 1. Ra > 95, R1-15 > 90;

[0136] 2. CQS (Color Quality Scale) > 95;

[0137] 3. TM-30-20, Rg > 95, Rf > 98, Rf, skin > 95;

[0138] 4. Television Lighting Index TLCI-2012 > 98;

[0139] 5. BPE (350-1000nm) luminous flux effective efficiency = BPF (luminous flux) / Фe (light power) > 5.40 μmol / J;

[0140] 6. LER (effective light efficiency) = Ф (luminous flux) / Фe (light power) > 190 Lm / W, which is 6.04% higher than 4500K sunlight (LER = 183 lm / w) of the same color temperature;

[0141] 7. COI (Cyanomethine Index) < 3.3, which meets the medical light source standard.

[0142] The S / P ratio, M / P ratio, and SSI (spectral similarity) of the learning state biological light spectrum LED light source of this embodiment are as shown in Table 9:

[0143] As shown in Table 9 and Figs. 23-24, the learning state biological light spectrum LED light source has the same S / P ratio (bright vision brightness ratio) as the sunlight with the same color temperature of 4500K, which is beneficial to the eye relaxation angle, and can provide a comfortable and healthy light environment and clear and bright vision. The M / P ratio (non-bright vision brightness ratio) is the same as the sunlight with the same color temperature of 4500K, which can inhibit the secretion of melatonin and make the spirit more vigorous. The high SSI (350-830nm) spectral similarity can restore the natural light color by 100%, and the high TLCI-2012 parameter can restore the clear light on books or fonts, and the human body or equipment can see more clearly. The MDER, melanopsin equivalent daylight efficiency is the same as the sunlight with the same color temperature of 4500K, which is beneficial to the eye relaxation and clear vision.

[0144] As shown in Figs. 25-26, the learning state biological light spectrum LED light source can be applied to the field of 4500K plant lighting, and the crop photon utilization rate is greater than 94%, and the German standard crop photon utilization rate is greater than 72%. The chlorophyll utilization rate is basically the same as the sunlight with the same color temperature, which is beneficial to the growth and development of plants.

[0145] Embodiment four.

[0146] The embodiment provides a preparation method of a learning state biological light spectrum LED light source, which comprises the following steps:

[0147] S100: The first LED wafer 11, the second LED wafer 12 and the third LED wafer 13 are arranged in the bowl cup 14, and are fixed on the support 15 by die bonding machine through insulating glue or silver glue. After die bonding, the oven is baked at a temperature of 150-160°C for 2h±10min, so that the first LED wafer 11, the second LED wafer 12 and the third LED wafer 13 are completely fixed in the bowl cup 14;

[0148] S200: The first LED wafer 11, the second LED wafer 12 and the third LED wafer 13 are connected with the positive and negative electrodes 10 by gold wire bonding through a gold wire bonding machine;

[0149] S300: A fluorescent glue solution is prepared, which is a mixture of glue, blue-green powder, red powder and infrared fluorescent powder;

[0150] S400: The prepared fluorescent glue solution is poured into the glue barrel of the glue dispensing machine. After glue dispensing and bubble removal, the fluorescent glue solution is dispensed in the bowl cup 14 according to the color parameter requirements. After dispensing, the oven is baked at 80°C / 0.5H+160°C / 4H;

[0151] S500: After the LED light source after roasting is threshed, the spectrometer is used to test the color parameters according to the given requirements, so that the light color quality formed in the bowl 14 meets the S / P ratio and the M / P ratio, and is basically the same as the sunlight of the same color temperature, the color temperature meets the specified chroma standard color temperature, the chroma coordinates meet the 3-order color tolerance chroma standard, the similarity coefficient SSI with the sunlight spectrum of the same color temperature is greater than 83, and the blue light hazard efficiency K B，V is lower than that of the sunlight of the same color temperature, which meets the blue light exemption RG0 standard. B，V

[0152] Table 10 below is the spectral parameter table of the learning state biological light spectrum LED light source of the present embodiment.

[0153] The learning state biological light spectrum LED light source prepared by the preparation method of the present embodiment has a color temperature between 3300-4700K, the landing point is controlled between the Duv=0.0045 curve and the Duv=-0.003 curve, the LER light efficiency is more than 6% higher than that of the sunlight of the same color temperature, the S / P ratio and the M / P ratio are basically the same as the sunlight of the same color temperature, the spectral similarity SSI (350-830nm) with the sunlight spectrum of the same color temperature is greater than 83. The infrared spectrum content is higher than that of the sunlight of the same color temperature, which is beneficial to the release of learning pressure, thereby achieving the effect of learning with full energy. At the same time, the COI index is less than 3.3, which meets the medical light source standard.

[0154] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A learning state biophotonic light spectrum LED light source, characterized by, It comprises a plurality of LED wafers, a bracket, and fluorescent glue, the bracket has a bowl cup and positive and negative electrodes, a plurality of the LED wafers are arranged in the bowl cup, and each LED wafer is connected with the positive and negative electrodes through gold wire bonding, and the fluorescent glue is coated on each LED wafer. The plurality of LED wafers comprises a first LED wafer with a main wavelength of 440-445 nm, a second LED wafer with a main wavelength of 450-455 nm and a third LED wafer with a main wavelength of 460-465 nm, and the naked crystal peak spectral energy ratio of the first, second and third LED wafers is: e (440-445 nm): Φ e (450-455 nm): Φ e (460-465 nm) = (0.4-0.7) : (0.8-1.0) : (0.6-1.0); The color temperature of the learning state biological light spectrum LED light source is between 3300-4700K, the landing point is controlled between the Duv=0.0045 curve and the Duv=-0.003 curve, the LER light efficiency is more than 6% higher than that of sunlight with the same color temperature, the S / P ratio and the M / P ratio are basically the same as that of sunlight with the same color temperature, and the spectral similarity SSI is greater than 83% compared with the sunlight spectrum with the same color temperature of 350-830nm.

2. The learning state biophotonic light spectrum LED light source according to claim 1, characterized in that, The fluorescent glue is formed by preparing a 3500K fluorescent glue solution, and the 3500K fluorescent glue solution is formed by mixing glue with blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 535-545nm, red powder with an emission wavelength of 630-640nm, red powder with an emission wavelength of 650-660nm, infrared fluorescent powder with an emission wavelength of 725-735nm, and infrared fluorescent powder with an emission wavelength of 760-780nm.

3. The learning state biophotonic light spectrum LED light source according to claim 2, characterized in that, The 3500K fluorescent glue solution is formed by mixing glue with blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 535-545nm, red powder with an emission wavelength of 630-640nm, red powder with an emission wavelength of 650-660nm, infrared fluorescent powder with an emission wavelength of 725-735nm, and infrared fluorescent powder with an emission wavelength of 760-780nm in a mass ratio of 3:(0.1-0.25):(1.45-1.65):(0.08-0.11):(0.1-0.14):(0.7-1.0):(0.3-0.5).

4. The learning state biophotonic light spectrum LED light source according to claim 2 or 3, characterized in that, The blue-green powder with emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ component, and the half-wave width is 80-90 nm; The green powder with an emission wavelength of 535-545 nm is Lu3Al5O 12 :Ce 3+ components, and a half-wave width of 95-105 nm; The red powder with an emission wavelength of 630-640nm is a CaAlSiN3:Eu component, and the half-wave width is 60-80nm; The red powder with an emission wavelength of 650-660nm is a CaAlSiN3:Eu component, and the half-wave width is 95-105nm; The infrared fluorescent powder with an emission wavelength of 725-735 nm is Ga4GeO8:Cr 3+ The component has a half-wave width of 140-160 nm. The infrared fluorescent powder with an emission wavelength of 760-780 nm is Ga4GeO8:Cr 3+ The component has a half-wave width of 140-160 nm.

5. The learning state biophotonic light spectrum LED light source of claim 1, wherein, The fluorescent glue is formed by preparing a 4000K fluorescent glue solution, and the 4000K fluorescent glue solution is formed by mixing glue with blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 535-545nm, red powder with an emission wavelength of 630-640nm, red powder with an emission wavelength of 655-665nm, infrared fluorescent powder with an emission wavelength of 725-735nm, infrared fluorescent powder with an emission wavelength of 760-780nm, and infrared fluorescent powder with an emission wavelength of 830-850nm.

6. The learning state biophotonic light spectrum LED light source according to claim 5, characterized in that, The 4000K fluorescent glue solution is prepared by mixing glue with blue-green powder with an emission wavelength of 490-500 nm, green powder with an emission wavelength of 535-545 nm, red powder with an emission wavelength of 630-640 nm, red powder with an emission wavelength of 655-665 nm, infrared fluorescent powder with an emission wavelength of 725-735 nm, infrared fluorescent powder with an emission wavelength of 760-780 nm, and infrared fluorescent powder with an emission wavelength of 830-850 nm.

7. The learning state biophotonic light spectrum LED light source of claim 1, wherein, The fluorescent glue is prepared by mixing 4500K fluorescent glue solution, which is prepared by mixing glue with blue-green powder with an emission wavelength of 490-500 nm, green powder with an emission wavelength of 535-545 nm, red powder with an emission wavelength of 630-640 nm, red powder with an emission wavelength of 655-665 nm, infrared fluorescent powder with an emission wavelength of 725-735 nm, infrared fluorescent powder with an emission wavelength of 760-780 nm, and infrared fluorescent powder with an emission wavelength of 830-850 nm.

8. The learning state biophotonic light spectrum LED light source according to claim 7, characterized in that, The 4500K fluorescent glue solution is prepared by mixing glue with blue-green powder with an emission wavelength of 490-500 nm, green powder with an emission wavelength of 535-545 nm, red powder with an emission wavelength of 630-640 nm, red powder with an emission wavelength of 655-665 nm, infrared fluorescent powder with an emission wavelength of 725-735 nm, infrared fluorescent powder with an emission wavelength of 760-780 nm, and infrared fluorescent powder with an emission wavelength of 830-850 nm.

9. The learning organism biophotonic light spectrum LED light source according to any one of claims 5 to 8, characterized in that, The blue-green powder with emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ component, and the half-wave width is 80-90 nm; The green powder with emission wavelength of 535-545 nm is Lu3Al5O 12 :Ce 3+ component, and the half-wave width is 95-105 nm; The red powder with an emission wavelength of 630-640 nm is a CaAlSiN3:Eu component with a half-wave width of 60-80 nm. The red powder with an emission wavelength of 655-665 nm is a CaAlSiN3:Eu component with a half-wave width of 95-105 nm. The infrared fluorescent powder with an emission wavelength of 725-735 nm is Ga4GeO8:Cr 3+ The component has a half-wave width of 140-160 nm. The infrared fluorescent powder with an emission wavelength of 760-780 nm is Ga4GeO8:Cr 3+ The component has a half-wave width of 140-160 nm. The infrared fluorescent powder with emission wavelength of 830-850 nm is Ga4GeO8:Cr 3+ The component has a half-wave width of 140-160 nm.

10. A method of producing a learning state biophotonic light spectrum LED light source according to any one of claims 1 to 9, characterized by: The method comprises the following steps: S100: The first LED wafer, the second LED wafer, and the third LED wafer are arranged in the bowl cup and fixed on the support by die bonding machine through insulating glue or silver glue. After die bonding, the oven is used to bake at a temperature of 150-160℃ for 2h±10min, so that the first LED wafer, the second LED wafer, and the third LED wafer are completely fixed in the bowl cup. S200: The first LED wafer, the second LED wafer, and the third LED wafer are connected with the positive and negative electrodes by gold wire bonding machine using gold wire bonding. S300: A fluorescent glue solution is prepared, which is prepared by mixing glue with blue-green powder, red powder, and infrared fluorescent powder. S300: A fluorescent glue solution is prepared, which is prepared by mixing glue with blue-green powder, red powder, and infrared fluorescent powder. S400: pour the completed configuration fluorescent adhesive solution into the glue tank of the glue dispenser, after the glue and bubble are discharged, the fluorescent adhesive solution is dispensed in the bowl according to the color parameter requirement, after the dispensing is completed, the baking is carried out under the condition of 80℃ / 0.5H+160℃ / 4H; S500: After the LED light source after baking is threshed, the spectrometer is used to test the color parameters according to the given requirements, so that the light color quality formed in the bowl cup meets the S / P ratio and the M / P ratio, and is basically flat with the same color temperature sunlight, the color temperature meets the specified chroma standard color temperature, the chroma coordinates meet the 3-order color tolerance chroma standard, the similarity coefficient SSI with the same color temperature 350-830nm sunlight spectrum is >83, and the blue light hazard efficiency K B，V is lower than that of the same color temperature sunlight, which meets the blue light exemption RG0 standard. B，V ​

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