LED for education illumination

Abstract

The utility model provides an educational lighting LED, which comprises an LED body, the LED body comprises a support, a fluorescent glue layer, a pin, a first wafer, a second wafer and a bowl cup, the bowl cup is arranged in the support, the first wafer and the second wafer are arranged in the bowl cup in series and connected with the support, the pin is connected with the support, and the fluorescent glue layer is arranged on the support. The fluorescent glue layer is arranged in the bowl cup in a wrapping manner, and the fluorescent glue layer is a mixture layer formed by combining blue powder, green powder, red powder, infrared fluorescent powder and transparent silica gel; the wavelength of the first wafer is set to be 450 to 455 nm, and the wavelength of the second wafer is set to be 465 to 470 nm; the color rendering index Regt of the LED body; 95; a color saturation index Rgt of the LED body; 95; a color fidelity index Rfgt of the LED body; 90; students are enabled to be more active and more positive in learning, the effective brightness of the light source is high, the students are wider in view and clearer in object watching, and myopia prevention of the students is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of LEDs, in particular to an LED for educational lighting. Background Art

[0002] In school classrooms, libraries, laboratories and other places, good lighting conditions have an important impact on students' learning effects and physical health. However, some schools have problems with their lighting systems, such as insufficient light, uneven lighting, and inappropriate light source color temperature, which lead to problems such as students being easily fatigued and unable to concentrate. Therefore, it is urgent to solve these problems. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide an LED for educational lighting, which makes students more active and learn more positively, the light source has a high effective brightness, students have a wider field of view and can see objects more clearly, which is beneficial for students to prevent myopia.

[0004] The utility model provides an LED for educational lighting, comprising an LED body, the LED body comprising a bracket, a fluorescent glue layer, a pin, a first chip, a second chip, and a bowl cup, the bowl cup is arranged in the bracket, the first chip and the second chip are arranged in series in the bowl cup and connected to the bracket, the pin is connected to the bracket, the fluorescent glue layer is covered and arranged in the bowl cup, and the fluorescent glue layer is set to be a mixture layer of blue powder, green powder and red powder, infrared fluorescent powder and transparent silica gel;

[0005] The wavelength of the first chip is set to 450-455nm, and the wavelength of the second chip is set to 465-470nm;

[0006] The color rendering index of the LED body Ra>95;

[0007] The color saturation index of the LED body is Rg>95;

[0008] The color fidelity index of the LED body Rf>90;

[0009] The color temperature range of the LED body is 3800-4200K, and the chromaticity coordinate is 403;

[0010] The LED body has a dark-light visual brightness ratio and a non-visual-visual brightness ratio that are greater than sunlight of the same color temperature.

[0011] Preferably, the spectral energy ratio of the LED body is: e (350-399nm): Ф e (400-469nm): Ф e (470-499nm): Ф e(500-599nm): Ф e (600-649nm): Ф e (650-699nm): Ф e (700-1000nm) = (0.04%-0.08%): (9.5%-10.0%): (8.2%-8.5%): (32%-32.5%): (19.1%-19.5%): (15.5%-15.9%): (14.2%-14.6%).

[0012] Preferably, the relative spectral height of the LED body is:

[0013] 420-440nm: ≤0.6;

[0014] 440-470nm: ≤0.8;

[0015] 470-520nm: ≥0.6;

[0016] 520-570nm: ≥0.7;

[0017] 570-610nm: ≥0.8;

[0018] 610-650nm: ≥0.85;

[0019] 650-700nm: ≥0.6;

[0020] 630-650nm: Peak 1;

[0021] 700-750nm: ≥0.25;

[0022] 750-850nm:≥0.05.

[0023] Preferably, the chromaticity width capacity of the LED body is set to N, N<3-order MacAdam ellipse.

[0024] Preferably, the similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 360-830nm is >83%.

[0025] Preferably, the similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 430-690nm is >93%.

[0026] Preferably, the LED body has a cosine similarity spectrum fitting coefficient SCS>90% with 4000K sunlight.

[0027] Preferably, the area of ​​the first chip:the area of ​​the second chip=1.35:1.

[0028] Preferably, the relative spectral intensity of the LED body in the wavelength range of 650-700nm is >0.6.

[0029] Preferably, the relative spectral intensity of the LED body in the wavelength range of 350-470 nm is <0.8.

[0030] The beneficial effects of the utility model are:

[0031] 1. The ratio of the dark and bright visual brightness of the LED body is greater than that of sunlight with the same color temperature, which can better inhibit the secretion of melatonin, make people more active, and students learn more actively; the ratio of the non-visual and visual brightness of the LED body is greater than that of sunlight with the same color temperature, the effective brightness of the light source is high, students can see a wider field of vision and see objects more clearly, which is beneficial for students to prevent myopia;

[0032] 2. The similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 360-830nm is >83%, the similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 430-690nm is >93%, and the cosine similarity spectrum fitting coefficient SCS with the 4000K sunlight is >90%, which can restore the natural color authentically and make natural sunlight healthier;

[0033] 3. The wavelength range of the LED body is 650-700nm with a relative spectral intensity > 0.6. Repeated low-intensity irradiation on the retina can continuously promote retinal choroidal circulation, improve scleral hypoxia, and thus continuously control the growth of the eye axis, making it easier for the human eye to see objects, solving visual fatigue and preventing myopia;

[0034] 4. The relative spectral intensity of the LED body in the wavelength range of 350-470nm is <0.8, which meets the blue light exemption RG0 standard, and the eye protection spectrum is healthier. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A top view of the utility model.

[0036] Figure 2 A cross-sectional view of the present invention.

[0037] Figure 3 The luminous spectrum curve of the utility model.

[0038] Figure 4 It is a test report schematic diagram of the utility model.

[0039] Figure 5 It is a curve diagram showing that the similarity SSI coefficient between the present invention and the 4000K sunlight spectrum 360-830nm is greater than 83%.

[0040] Figure 6This is a curve diagram showing that the similarity SSI coefficient of the utility model with the 4000K sunlight spectrum 430-690nm is greater than 93%.

[0041] Figure 7 It is a curve graph with a cosine similarity spectrum fitting coefficient SCS>90% with 4000K sunlight.

[0042] Figure 8 It is the chromaticity landing point bin diagram requirement index of the utility model.

[0043] The reference numerals are: a bracket 16 , a fluorescent glue layer 14 , a pin 15 , a first chip 11 , a second chip 12 , and a bowl 13 . DETAILED DESCRIPTION

[0044] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Please refer to Figure 1-8 As shown, this embodiment provides an LED for educational lighting, including an LED body, the LED body including a bracket 16, a fluorescent glue layer 14, a pin 15, a first chip 11, a second chip 12, and a bowl 13, the bowl 13 is arranged in the bracket 16, the first chip 11 and the second chip 12 are arranged in series in the bowl 13 and connected to the bracket 16, and the area of ​​the first chip 11: the area of ​​the second chip 12 = 1.35:1.

[0047] The pin 15 is connected to the bracket 16 . The fluorescent glue layer 14 is coated in the bowl 13 . The fluorescent glue layer 14 is a mixture layer of blue powder, green powder, red powder, infrared fluorescent powder and transparent silica gel.

[0048] In this embodiment, a 4000K fluorescent glue layer 14 is configured, which is a mixture of glue and blue powder with an emission wavelength of 490-505nm, green powder with an emission wavelength of 530-540nm, red powder with an emission wavelength of 650-660nm, infrared powder with an emission wavelength of 705-715nm, and infrared powder with an emission wavelength of 745-755nm. Among them, glue: 500nm blue powder: 530nm green powder: 650 fluorescent powder: 710nm infrared powder: 750nm infrared powder≈3: 0.3: 1.2: 0.18: 0.8: 0.4.

[0049] The wavelength of the first chip 11 is set to 450-455nm, and the wavelength of the second chip 12 is set to 465-470nm; the color rendering index Ra of the LED body is>95; the color saturation index Rg of the LED body is>95; the color fidelity index Rf of the LED body is>90; the color temperature range of the LED body is 3800-4200K, and the chromaticity coordinates are 403; the ratio of dark and bright visual brightness of the LED body and the ratio of non-visual and visual brightness are both greater than the sunlight with the same color temperature.

[0050] The following is a comparison chart of the spectrum similarity SSI of the present invention and sunlight 4000K:

[0051]

[0052] From the corresponding data in the above icons, we can see that the M / P ratio is 7% higher than that of sunlight at the same color temperature, which means that it can better inhibit the secretion of melatonin, making people more active and students more motivated to study; the S / P ratio is 4.3% higher than that of sunlight at the same color temperature, which means that the effective brightness of the light source is high, students have a wider field of view and can see objects more clearly, which is beneficial for students to prevent myopia.

[0053] The spectral energy ratio of the LED body is: Ф e (350-399nm): Ф e (400-469nm): Ф e (470-499nm): Ф e (500-599nm): Ф e (600-649nm): Ф e (650-699nm): Ф e (700-1000nm) = (0.04%-0.08%): (9.5%-10.0%): (8.2%-8.5%): (32%-32.5%): (19.1%-19.5%): (15.5%-15.9%): (14.2%-14.6%).

[0054] The following provides a graph of the luminescence spectrum distribution:

[0055] Band 350-399nm 400-469nm 470-499nm 500-599nm 600-649nm 650-699nm 700-1000nm content 4.94531E-05 0.010443394 0.00902326 0.03476905 0.02079812 0.01694281 0.015480884 Proportion 0.05％ 9.71％ 8.39％ 32.34％ 19.35％ 15.76％ 14.40％

[0056] Product spectroscopic parameter table of this utility model

[0057]

[0058] The relative spectral height of the LED body is:

[0059] 420-440nm: ≤0.6;

[0060] 440-470nm: ≤0.8;

[0061] 470-520nm: ≥0.6;

[0062] 520-570nm: ≥0.7;

[0063] 570-610nm: ≥0.8;

[0064] 610-650nm: ≥0.85;

[0065] 650-700nm: ≥0.6;

[0066] 630-650nm: Peak 1;

[0067] 700-750nm: ≥0.25;

[0068] 750-850nm:≥0.05.

[0069] The chromaticity width capacity of the LED body is set to N, N<3-step MacAdam ellipse.

[0070] The similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 360-830nm is >83%. The similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 430-690nm is >93%. The cosine similarity spectrum fitting coefficient SCS between the LED body and the 4000K sunlight is >90%. Through such a setting, the utility model can authentically restore the natural color, and the natural sunlight is healthier.

[0071] The wavelength range of the LED body is 650-700nm with a relative spectral intensity >0.6. Repeated low-intensity irradiation on the retina can continuously promote retinal choroidal circulation, improve scleral hypoxia, and thus continuously control the growth of the eye axis, making it easier for the human eye to see objects, solving visual fatigue and preventing the occurrence of myopia.

[0072] The wavelength range of the LED body is 350-470nm with a relative spectral intensity of <0.8, which meets the blue light exemption RG0 standard, and the eye protection spectrum is healthier.

[0073] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An LED for educational lighting, comprising an LED body, the LED body comprising a bracket (16), a fluorescent glue layer (14), a pin (15), a first chip (11), a second chip (12), and a bowl (13), the bowl (13) being arranged in the bracket (16), the first chip (11) and the second chip (12) being arranged in series in the bowl (13) and connected to the bracket (16), the pin (15) being connected to the bracket (16), the fluorescent glue layer (14) being arranged in the bowl (13) by covering, and the fluorescent glue layer (14) being arranged as a mixture layer of blue powder, green powder, red powder, infrared fluorescent powder and transparent silica gel; Features: The wavelength of the first chip (11) is set to 450-455 nm, and the wavelength of the second chip (12) is set to 465-470 nm; The color rendering index of the LED body Ra>95; The color saturation index of the LED body is Rg>95; The color fidelity index of the LED body Rf>90; The color temperature range of the LED body is 3800-4200K, and the chromaticity coordinate is 403; The LED body has a dark-light visual brightness ratio and a non-visual-visual brightness ratio that are greater than sunlight of the same color temperature.

2. The LED for educational lighting according to claim 1, characterized in that: The spectral energy ratio of the LED body is: e (350-399nm): Ф e (400-469nm): Ф e (470-499nm): Ф e (500-599nm): Ф e (600-649nm): Ф e (650-699nm): Ф e (700-1000nm) = (0.04%-0.08%): (9.5%-10.0%): (8.2%-8.5%): (32%-32.5%): (19.1%-19.5%): (15.5%-15.9%): (14.2%-14.6%).

3. The LED for educational lighting according to claim 1, characterized in that: The relative spectral height of the LED body is: 420-440nm: ≤0.6; 440-470nm: ≤0.8; 470-520nm: ≥0.6; 520-570nm: ≥0.7; 570-610nm: ≥0.8; 610-650nm: ≥0.85; 650-700nm: ≥0.6; 630-650nm: Peak 1; 700-750nm: ≥0.25; 750-850nm:≥0.

05.

4. The LED for educational lighting according to claim 1, characterized in that: The chromaticity width capacity of the LED body is set to N, N<3-order MacAdam ellipse.

5. The LED for educational lighting according to claim 1, characterized in that: The similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 360-830nm is greater than 83%.

6. The LED for educational lighting according to claim 1, characterized in that: The similarity SSI coefficient between the LED body and the 4000K sunlight spectrum 430-690nm is greater than 93%.

7. The LED for educational lighting according to claim 1, characterized in that: The LED body has a cosine similarity spectrum fitting coefficient SCS>90% with 4000K sunlight.

8. The LED for educational lighting according to claim 1, characterized in that: The area of ​​the first wafer (11):the area of ​​the second wafer (12)=1.35:

1.

9. The LED for educational lighting according to claim 1, characterized in that: The relative spectral intensity of the LED body in the wavelength range of 650-700nm is >0.

6.

10. The LED for educational lighting according to claim 1, characterized in that: The relative spectral intensity of the LED body in the wavelength range of 350-470nm is <0.8.

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