Light biological eye protection optical spectrum LED light source and manufacturing method thereof

Abstract

The invention belongs to the technical field of LEDs, and particularly relates to a light biological eye protection spectrum LED light source and a manufacturing method thereof.The light biological eye protection spectrum LED light source comprises a plurality of LED wafers, a support, silica gel and fluorescent glue, the LED wafers comprise the first LED wafer with the dominant wavelength being 440-445 nm, the second LED wafer with the dominant wavelength being 450-455 nm, the third LED wafer with the dominant wavelength being 465-470 nm and the fourth laser VCSEL wafer with the peak wavelength being 675-695 nm; the fluorescent glue is formed by preparing a 4000 K fluorescent glue solution, and the 4000 K fluorescent glue solution is formed by mixing glue with blue-green powder with the emission wavelength of 490-500 nm, green powder with the emission wavelength of 530-540 nm, red powder with the emission wavelength of 630-640 nm and infrared fluorescent powder with the emission wavelength of 725-735 nm. The 650-700nm spectral height of the light source is more than 0.1, the peak wavelength is between 670 and 690nm, and the excellent spectral continuity effect is beneficial to inhibiting the growth of an eye axis, so that the myopia protection function can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of LEDs, in particular to a photobiological eye protection spectrum LED light source and a manufacturing method thereof. Background Art

[0002] Myopia is the most common type of refractive error in the world. Currently, myopia is becoming more common at younger ages. It is estimated that by 2050, nearly half of the world's population will suffer from myopia, and high myopia will account for 10% to 20%. Myopia not only affects people's daily quality of life, but also brings serious blinding complications such as macular degeneration and retinal detachment, which bring heavy economic burdens to patients' families and society, and cause serious harm to patients' physical and mental health.

[0003] Children and adolescents spend a long time under lamps during their daily learning process, so one of the effective methods is to provide a reliable eye-protecting light source to reduce or prevent the incidence of myopia in children and adolescents. Summary of the invention

[0004] The purpose of the present invention is to provide a photobiological eye protection spectrum LED light source and a method for manufacturing the same, which is conducive to relaxing the eyes and inhibiting the secretion of melatonin, so as to solve at least one of the problems existing in the above-mentioned prior art.

[0005] The present invention adopts the following technical solutions to solve the above technical problems: Provide a photobiological eye protection spectrum LED light source, including multiple LED chips, a bracket, silica gel and fluorescent glue, the bracket has a bowl and positive and negative electrodes, multiple LED chips are arranged in the bowl, and each LED chip is connected to the positive and negative electrodes by gold wire bonding, and the fluorescent glue is coated on each LED chip;

[0006] The plurality of LED chips include a first LED chip with a main wavelength of 440-445 nm, a second LED chip with a main wavelength of 450-455 nm, a third LED chip with a main wavelength of 465-470 nm, and a fourth laser VCSEL chip with a peak wavelength of 675-695 nm;

[0007] The fluorescent glue is formed by preparing a 4000K fluorescent glue solution, which is a mixture of glue and blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 530-540nm, red powder with an emission wavelength of 630-640nm and infrared fluorescent powder with an emission wavelength of 725-735nm.

[0008] Optionally, see Figure 3, the bare crystal peak spectral energy ratio of the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip is: Ф e (440-445nm): Ф e (450-455nm): Ф e (465-470nm): Ф e (675-695nm)=(0.6-1.0): (0.6-1.0): (0.6-1.0): (0.4-0.8).

[0009] Optionally, the 50% intensity half-wave width of the fourth laser VCSEL chip is 5-15 nm.

[0010] Optionally, the 4000K fluorescent glue solution is prepared by the mass ratio of glue: blue-green powder with an emission wavelength of 490-500nm: green powder with an emission wavelength of 530-540nm: red powder with an emission wavelength of 630-640nm: infrared phosphor with an emission wavelength of 725-735nm = 11: (0.6-1.0): (3.8-4.2): (0.22-0.28): (1.8-2.2).

[0011] Optionally, the blue-green powder with an emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ composition, half-wave width is 40-70nm; the green powder with an emission wavelength of 530-540nm is Lu3Al5O 12 :Ce 3+ The red powder with an emission wavelength of 635-645nm is CaAlSiN3:Eu, with a half-wave width of 40-60nm; the infrared phosphor with an emission wavelength of 725-735nm is Ga4GeO8:Cr 3+ Component, half-wave width is 120-180nm.

[0012] Optionally, the relative spectral height of the photobiological eye protection spectrum LED light source is as follows:

[0013] 250-650nm≤0.2;

[0014] The peak wavelength is 670-690nm.

[0015] Optionally, the light color quality of the photobiological eye protection spectrum LED light source satisfies that the spectrum is continuous from 350-800nm, and the energy height of 650-730nm is >0.1.

[0016] Optionally, the light color quality of the photobiological eye protection spectrum LED light source satisfies that there is a narrow peak in the 670-690nm spectrum and the peak wavelength is between 670-690nm.

[0017] The embodiment of the present invention also provides a method for manufacturing a photobiological eye protection spectrum LED light source, which comprises the following steps:

[0018] S100: placing the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip in the bowl, and fixing them on the bracket by using a die bonding machine through insulating glue or silver glue, and baking them in an oven at 150-160° C. for 2 h±10 min after the die bonding, so that the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip are completely fixed in the bowl;

[0019] S200: Connecting the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip to the positive and negative electrodes by gold wire bonding using a gold wire bonding machine;

[0020] S300: preparing a 4000K fluorescent glue solution, wherein the 4000K fluorescent glue solution is a mixture of glue, green powder, red powder and infrared fluorescent powder;

[0021] S400: Pour the prepared 4000K fluorescent glue solution into the glue barrel of the glue dispensing machine. After the glue and bubbles are discharged, dispense the 4000K fluorescent glue solution into the bowl according to the color parameter requirements. After the dispensing is completed, bake at 80℃ / 0.5H+160℃ / 4H;

[0022] S500: After the LED is threshed after baking, it is split according to the given color parameters using a spectrophotometer, so that the light color quality formed in the bowl meets the S / P ratio and M / P ratio lower than the sunlight of the same color temperature, the color temperature meets the specified chromaticity 403 standard coordinates, the chromaticity coordinates meet the 3-order color tolerance chromaticity standard, the SSI coefficient of similarity with the 4000K solar spectrum is >87%, and the blue light hazard efficiency K B，V =0.000488055, which is the blue light hazard efficiency K of sunlight with the same color temperature B，V Low, meets the blue light exemption RG0 standard.

[0023] Optionally, in the step S100, the first LED wafer, the second LED wafer, and the third LED wafer are bonded with insulating glue, and the fourth laser VCSEL wafer is bonded with silver glue.

[0024] Compared with the prior art, the photobiological eye protection spectrum LED light source and the manufacturing method thereof provided by the embodiment of the present invention have at least the following beneficial effects:

[0025] 1. The spectrum similarity with 4000K sunlight is SSI (350-830nm)>87, with excellent spectrum similarity parameters, restoring the color of natural light, allowing people to experience nature and enjoy the sun bath;

[0026] 2. Blue light hazard efficiency K B，V =0.000488055, which is the blue light hazard efficiency K of sunlight with the same color temperature B，V Low (K B，V / K B，V (4000K sunlight) = 91.25%), meets the blue light exemption RG0 standard, and the eye protection spectrum is healthier (see Figure 5 );

[0027] 3. The 650-700nm spectrum height is above 0.1, and the peak wavelength is between 670-690nm. The excellent spectrum continuity effect is conducive to inhibiting the growth of the eye axis, thereby achieving myopia protection function;

[0028] 4. S / Pratio (dark-light visual brightness ratio) is 1.60% higher than sunlight with the same color temperature of 4000K, which is conducive to relaxing the eyes and creating a comfortable and healthy light environment;

[0029] 5. The M / P ratio (non-photopic brightness ratio) is 2.56% higher than the sunlight with the same color temperature of 4000K, which inhibits the secretion of melatonin and can improve learning concentration;

[0030] 6. Compared with conventional spectrum LEDs with the same color temperature, objects can be seen more clearly and the field of vision is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0032] Figure 2 A cross-sectional view of a photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0033] Figure 3 This is a bare crystal luminescence spectrum curve of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0034] Figure 4 This is a luminous spectrum curve of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0035] Figure 5This is a spectrum comparison diagram of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention and the solar spectrum 4000K.

[0036] Figure 6 The TV lighting index TLCI-2012 diagram of the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention is relatively high in TV lighting coefficient, high in color rendering performance, good in color reproduction, pure in color, and good in eye protection effect.

[0037] Figure 7 Data graph showing that the photobiological eye protection spectrum LED light source provided in the embodiment of the present invention meets the medical light source standard (color quality index CQS>95, acid glycoside index COI<3.3). The color quality index is high, the color reproduction is good, the color is pure, and the eye protection effect is good. The acid glycoside index is small, and it is also suitable as a medical light source.

[0038] Figure 8 The data diagram of TM-30-15, Rg>95, Rf>92, and Rf,skin>92 of the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention shows high color quality and good eye protection effect.

[0039] Fig. 9 The spectral similarity SSI calculation diagram of the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention. High spectral similarity, excellent spectrum, and sunshine bathing.

[0040] Fig.10 This is a spectrum test report diagram of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0041] Fig.11 This is a chromaticity bin diagram of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0042] Reference numerals:

[0043] 9-Fourth laser VCSEL chip 10-positive and negative electrodes 11-First LED chip

[0044] 12—Second LED chip 13—Third LED chip 14—Bowl

[0045] 15- bracket 16- fluorescent glue. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-11The technical solution of the present invention is further described in detail. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Although this specification is described according to the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole. The various embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0047] The light color quality of the above-mentioned photobiological eye protection spectrum LED light source provided by the embodiment of the present invention satisfies the S / Pratio (dark-light visual brightness ratio) which is 1.60% higher than the sunlight with the same color temperature of 4000K, which is conducive to relaxing the eyes and creating a comfortable and healthy light environment; the M / P ratio (non-photopic visual brightness ratio) is 2.56% higher than the sunlight with the same color temperature of 4000K, inhibiting the secretion of melatonin and improving learning concentration; the color temperature meets the specified chromaticity 403 standard coordinates, the chromaticity coordinates meet the 3-order color tolerance chromaticity standard, the SSI coefficient of similarity with the 4000K solar spectrum is >87%, and the blue light hazard efficiency K B，V =0.000488055, which is the blue light hazard efficiency K of sunlight with the same color temperature B，V Low, meets the blue light exemption RG0 standard.

[0048] It should be noted that the blue light hazard efficiency K B，V To calculate, that is, the blue light hazard weighted radiance L B The ratio of the corresponding photometric value is calculated as:

[0049]

[0050] Among them, K m =683lm / W, V(λ) is the spectral luminous efficiency (or visibility function), and B(λ) is the blue light hazard weighting function. K B，V Characterizes the relative amount of blue light components in visible radiation. When the brightness of lighting products is the same, K B，V The higher it is, the more likely the light source is to harm the retina.

[0051] like Figures 1-2 As shown, an embodiment of the present invention provides a photobiological eye protection spectrum LED light source, including multiple LED chips, a bracket 15, silica gel and fluorescent glue 16, the bracket 15 has a bowl cup 14 and positive and negative electrodes 10, the multiple LED chips are arranged in the bowl cup 14, and each LED chip is connected to the positive and negative electrodes 10 by gold wire bonding, and the fluorescent glue 16 is coated on each LED chip.

[0052] The plurality of LED chips include 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, a third LED chip 13 with a main wavelength of 465-470 nm, and a fourth laser VCSEL chip 9 with a peak wavelength of 675-695 nm.

[0053] Among them, VCSEL is the abbreviation of Vertical-Cavity Surface-Emitting Laser, and its Chinese name is vertical cavity surface emitting laser. It has narrow wavelength, short half-wave width, focusing, small emission angle (below 30°), and optical concentration.

[0054] The fluorescent glue 16 is formed by preparing a 4000K fluorescent glue solution, which is a mixture of glue and blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 530-540nm, red powder with an emission wavelength of 630-640nm and infrared fluorescent powder with an emission wavelength of 725-735nm.

[0055] In one embodiment of the present invention, see Figure 3 , the bare crystal peak spectral energy ratio of the first LED chip 11, the second LED chip 12, the third LED chip 13 and the fourth laser VCSEL chip 9 is: Ф e (440-445nm): Ф e (450-455nm): Ф e (465-470nm): Ф e (675-695nm) = (0.6-1.0): (0.6-1.0): (0.6-1.0): (0.4-0.8). e (440-445nm): Ф e (450-455nm): Ф e (465-470nm): Ф e (675-695nm) can be 0.6:0.6:0.6:0.4 or 1.0:1.0:1.0:0.8 or 0.8:0.8:0.7:0.6.

[0056] In one embodiment of the present invention, the 50% intensity half-wave width of the fourth laser VCSEL chip 9 is 5-15 nm. For example, the 50% intensity half-wave width of the fourth laser VCSEL chip 9 is 5 nm, 10 nm or 15 nm.

[0057] In one embodiment of the present invention, the 4000K fluorescent glue solution is prepared by the mass ratio of glue: blue-green powder with an emission wavelength of 490-500nm: green powder with an emission wavelength of 530-540nm: red powder with an emission wavelength of 630-640nm: infrared phosphor with an emission wavelength of 725-735nm = 11: (0.6-1.0): (3.8-4.2): (0.22-0.28): (1.8-2.2). For example, the mass ratio of the 4000K fluorescent glue solution of glue: blue-green powder with an emission wavelength of 490-500nm: green powder with an emission wavelength of 530-540nm: red powder with an emission wavelength of 630-640nm: infrared phosphor with an emission wavelength of 725-735nm can be 11:0.6:3.8:0.22:1.8 or 11:1.0:4.2:0.28:2.2 or 11:0.8:4:0.24:2.

[0058] In one embodiment of the present invention, the blue-green powder with an emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ The component has a half-wave width of 40-70nm; for example, the half-wave width can be 40nm, 50nm, 60nm or 70nm.

[0059] Furthermore, the green powder with an emission wavelength of 530-540 nm is Lu3Al5O 12 :Ce 3+ The component has a half-wave width of 85-110nm; for example, the half-wave width can be 85nm, 90nm, 100nm or 110nm.

[0060] Furthermore, the red powder with an emission wavelength of 635-645 nm is composed of CaAlSiN3:Eu, and the half-wave width is 40-60 nm; for example, the half-wave width can be 40 nm, 50 nm or 60 nm.

[0061] Furthermore, the infrared phosphor with an emission wavelength of 725-735 nm is Ga4GeO8:Cr 3+ component, and the half-wavewidth is 120-180nm; for example, the half-wavewidth can be 120nm, 130nm, 140nm, 150nm, 160nm, 170nm or 180nm.

[0062] In one embodiment of the present invention, the relative spectral height of the photobiological eye protection spectrum LED light source is as follows: 250-650nm≤0.2; the peak wavelength is 670-690nm. Figure 3 .

[0063] In one embodiment of the present invention, the light color quality of the photobiological eye protection spectrum LED light source satisfies that the spectrum is continuous from 350-800nm, and the energy height of 650-730nm is greater than 0.1. Figure 4 .

[0064] In one embodiment of the present invention, see Figures 4-5 The light color quality of the photobiological eye protection spectrum LED light source meets the requirement that the 670-690nm spectrum has a narrow peak and the peak wavelength is between 670-690nm. Figure 5 .

[0065] Table 1 below shows the spectroscopic parameters of the packaged finished product of the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention. Fig.11 .

[0066]

[0067] The following Table 2 is a spectral content analysis table of the photobiological eye protection spectrum LED light source provided in an embodiment of the present invention.

[0068] Spectral bands 350-439 440-469 470-499 500-599 600-699 700-1000 Content(W) 0.006508753 0.01274713 0.01725803 0.06774133 0.08541787 0.053261681 Proportion 2.68％ 5.25％ 7.10％ 27.88％ 35.16％ 21.92％

[0069] The data in Table 2 can already reflect that the red-enriched appearance can inhibit the growth of the eye axis and prevent myopia.

[0070] The following Table 3 compares the S / Pratio and M / P ratio of the photobiological eye protection spectrum LED light source provided by an embodiment of the present invention and sunlight 4000K.

[0071] .

[0072] Table 3 shows that the similarity SSI (350-830nm) between the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention and the 4000K sunlight spectrum is greater than 87, with excellent spectral similarity parameters, restoring the color of natural light, allowing people to experience nature and enjoy the sun bath; the S / P ratio (dark-light visual brightness ratio) is 1.60% higher than the 4000K sunlight with the same color temperature, which is conducive to relaxing the eyes and creating a comfortable and healthy light environment; the M / P ratio (non-photopic visual brightness ratio) is 2.56% higher than the 4000K sunlight with the same color temperature, inhibiting melatonin secretion and improving learning concentration. It can be seen that the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention is clearer and has a better field of view than the conventional spectrum LED with the same color temperature.

[0073] See further Figure 6 It can be seen that the TV lighting coefficient of the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention is relatively high, the color rendering performance is high, the color reproduction is good, the color is pure, and the eye protection effect is good.

[0074] See further Figure 7 It can be seen that the LED light source of the photobiological eye protection spectrum provided by the embodiment of the present invention has a high color quality index, good color reproduction, pure color, good eye protection effect, a small acid-glycoside index, and is also suitable as a medical light source.

[0075] See further Figure 8 It can be seen that the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention has high color quality and good eye protection effect.

[0076] See further Fig. 9 It can be seen that the photobiological eye protection spectrum LED light source provided by the embodiment of the present invention has high spectral similarity, excellent spectrum, and sunshine bathing.

[0077] Combination Figures 1-2 As shown, the embodiment of the present invention also provides a method for manufacturing a photobiological eye protection spectrum LED light source, which includes the following steps:

[0078] S100: The first LED chip 11, the second LED chip 12, the third LED chip 13 and the fourth laser VCSEL chip 9 are arranged in the bowl 14, and fixed on the bracket 15 by a die bonding machine through insulating glue or silver glue. After the die bonding is completed, the first LED chip 11, the second LED chip 12, the third LED chip 13 and the fourth laser VCSEL chip 9 are baked in an oven at a temperature of 150-160° C. for 2 h±10 min, so that the first LED chip 11, the second LED chip 12, the third LED chip 13 and the fourth laser VCSEL chip 9 are completely fixed in the bowl 14;

[0079] S200: Connecting the first LED chip 11, the second LED chip 12, the third LED chip 13 and the fourth laser VCSEL chip 9 to the positive and negative electrodes 10 by gold wire bonding using a gold wire bonding machine;

[0080] S300: preparing a 4000K fluorescent glue solution, wherein the 4000K fluorescent glue solution is a mixture of glue, green powder, red powder and infrared fluorescent powder;

[0081] S400: Pour the prepared 4000K fluorescent glue solution into the glue barrel of the glue dispensing machine. After the glue and bubbles are discharged, the 4000K fluorescent glue solution is dispensed into the bowl 14 according to the color parameter requirements. After the dispensing is completed, it is baked at 80℃ / 0.5H+160℃ / 4H.

[0082] S500: After the LED is threshed after baking, it is split according to the given color parameters by a spectrophotometer, so that the light color quality formed in the bowl 14 meets the S / P ratio and M / P ratio lower than the sunlight of the same color temperature, the color temperature meets the specified chromaticity 403 standard coordinates, the chromaticity coordinates meet the 3-order color tolerance chromaticity standard, the SSI coefficient of similarity with the 4000K solar spectrum is >87%, and the blue light hazard efficiency K B，V =0.000488055, which is the blue light hazard efficiency K of sunlight with the same color temperature B，V Low, meets the blue light exemption RG0 standard.

[0083] Furthermore, in the step S100, the first LED chip 11, the second LED chip 12, and the third LED chip 13 are bonded with insulating glue, and the fourth laser VCSEL chip 9 is bonded with silver glue. The first LED chip 11, the second LED chip 12, and the third LED chip 13 are all double-electrode horizontal structures, and the fourth laser VCSEL chip 9 is a vertical structure.

[0084] In summary, the photobiological eye protection spectrum LED light source and the manufacturing method thereof provided by the embodiments of the present invention have at least the following beneficial effects:

[0085] 1. The spectrum similarity with 4000K sunlight is SSI (350-830nm)>87, with excellent spectrum similarity parameters, restoring the color of natural light, allowing people to experience nature and enjoy the sun bath;

[0086] 2. Blue light hazard efficiency K B，V =0.000488055, which is the blue light hazard efficiency K of sunlight with the same color temperature B，V Low (K B，V / K B，V (4000K sunlight) = 91.25%), meets the blue light exemption RG0 standard, and the eye protection spectrum is healthier (see Figure 5 );

[0087] 3. The 650-700nm spectrum height is above 0.1, and the peak wavelength is between 670-690nm. The excellent spectrum continuity effect is conducive to inhibiting the growth of the eye axis, thereby achieving myopia protection function;

[0088] 4. S / Pratio (dark-light visual brightness ratio) is 1.60% higher than sunlight with the same color temperature of 4000K, which is conducive to relaxing the eyes and creating a comfortable and healthy light environment;

[0089] 5. The M / P ratio (non-photopic brightness ratio) is 2.56% higher than the sunlight with the same color temperature of 4000K, which inhibits the secretion of melatonin and can improve learning concentration;

[0090] 6. Compared with conventional spectrum LEDs with the same color temperature, objects can be seen more clearly and the field of vision is better.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photobiological eye protection spectrum LED light source, characterized in that: It includes a plurality of LED chips, a bracket, silica gel and fluorescent glue, wherein the bracket has a bowl and positive and negative electrodes, the plurality of LED chips are arranged in the bowl, and each LED chip is connected to the positive and negative electrodes by gold wire bonding, and the fluorescent glue is coated on each LED chip; The plurality of LED chips include a first LED chip with a main wavelength of 440-445 nm, a second LED chip with a main wavelength of 450-455 nm, a third LED chip with a main wavelength of 465-470 nm, and a fourth laser VCSEL chip with a peak wavelength of 675-695 nm; The fluorescent glue is formed by preparing a 4000K fluorescent glue solution, which is a mixture of glue and blue-green powder with an emission wavelength of 490-500nm, green powder with an emission wavelength of 530-540nm, red powder with an emission wavelength of 630-640nm and infrared fluorescent powder with an emission wavelength of 725-735nm.

2. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The bare crystal peak spectral energy ratio of the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip is: e (440-445nm): Ф e (450-455nm): Ф e (465-470nm): Ф e (675-695nm)=(0.6-1.0): (0.6-1.0): (0.6-1.0): (0.4-0.8).

3. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The 50% intensity half-wave width of the fourth laser VCSEL chip is 5-15 nm.

4. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The 4000K fluorescent glue solution is prepared by the mass ratio of glue: blue-green powder with an emission wavelength of 490-500nm: green powder with an emission wavelength of 530-540nm: red powder with an emission wavelength of 630-640nm: infrared fluorescent powder with an emission wavelength of 725-735nm = 11: (0.6-1.0): (3.8-4.2): (0.22-0.28): (1.8-2.2).

5. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The blue-green powder with an emission wavelength of 490-500 nm is Lu3Al5O 12 :Ce 3+ composition, half-wave width is 40-70nm; the green powder with an emission wavelength of 530-540nm is Lu3Al5O 12 :Ce 3+ The red powder with an emission wavelength of 635-645nm is CaAlSiN3:Eu, with a half-wave width of 40-60nm; the infrared phosphor with an emission wavelength of 725-735nm is Ga4GeO8:Cr 3+ Component, half-wave width is 120-180nm.

6. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The relative spectral height of the photobiological eye protection spectrum LED light source is as follows: 250-650nm≤0.2; The peak wavelength is 670-690nm.

7. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The light color quality of the photobiological eye protection spectrum LED light source meets the requirement that the spectrum is continuous from 350-800nm, and the energy height of 650-730nm is >0.

1.

8. The photobiological eye protection spectrum LED light source according to claim 1, characterized in that: The light color quality of the photobiological eye protection spectrum LED light source satisfies that there is a narrow peak in the 670-690nm spectrum and the peak wavelength is between 670-690nm.

9. A method for manufacturing the photobiological eye protection spectrum LED light source according to any one of claims 1 to 8, comprising the following steps: S100: placing the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip in the bowl, and fixing them on the bracket by using a die bonding machine through insulating glue or silver glue, and baking them in an oven at 150-160° C. for 2 h±10 min after the die bonding, so that the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip are completely fixed in the bowl; S200: Connecting the first LED chip, the second LED chip, the third LED chip and the fourth laser VCSEL chip to the positive and negative electrodes by gold wire bonding using a gold wire bonding machine; S300: preparing a 4000K fluorescent glue solution, wherein the 4000K fluorescent glue solution is a mixture of glue, green powder, red powder and infrared fluorescent powder; S400: Pour the prepared 4000K fluorescent glue solution into the glue barrel of the glue dispensing machine. After the glue and bubbles are discharged, dispense the 4000K fluorescent glue solution into the bowl according to the color parameter requirements. After the dispensing is completed, bake at 80℃ / 0.5H+160℃ / 4H; S500: After the LED is threshed after baking, it is split according to the given color parameters using a spectrophotometer, so that the light color quality formed in the bowl meets the S / P ratio and M / P ratio lower than the sunlight of the same color temperature, the color temperature meets the specified chromaticity 403 standard coordinates, the chromaticity coordinates meet the 3-order color tolerance chromaticity standard, the SSI coefficient of similarity with the 4000K solar spectrum is >87%, and the blue light hazard efficiency K B，V =0.000488055, which is the blue light hazard efficiency K of sunlight with the same color temperature B，V Low, meets the blue light exemption RG0 standard.

10. The method for manufacturing the photobiological eye protection spectrum LED light source according to claim 9, characterized in that: In the step S100, the first LED wafer, the second LED wafer, and the third LED wafer are bonded with insulating glue, and the fourth laser VCSEL wafer is bonded with silver glue.

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