Light source for slowing down myopia, light source device and lamp

Abstract

The utility model discloses a light source, a light source device and a lamp for slowing down myopia, and relates to the field of illumination, the light source for slowing down myopia is used for emitting light for slowing down a myopia spectrum, the light emitted by the light source comprises purple light with the wave band of 350-430 nm, and the color temperature section of the spectrum is 2500-3300 K; the relative intensity light height ratio and the relative spectral energy content ratio of each wave band in the light emitted by the light source are different so as to limit the spectral shape for slowing down the myopia spectrum. The light source device comprises a plurality of light sources. The lamp comprises a shell, a substrate and a plurality of light source devices for slowing down myopia. The substrate is arranged in the shell; the plurality of light source devices for slowing down myopia are all fixed on the substrate and are all connected with the power supply. The purple light is added into the spectrum emitted by the light source, the solar spectrum can be better simulated, excessive growth of the ocular axis can be inhibited to a certain extent, and then myopia is slowed down.

Description

Technical Field

[0001] This application relates to the field of lighting, and in particular to a light source, light source device, and luminaire that can reduce the occurrence of myopia. Background Technology

[0002] Full spectrum refers to a spectral curve that includes ultraviolet, visible, and infrared light, with the proportions of red, green, and blue in the visible light portion being similar to those of sunlight, and a color rendering index close to 100. The spectrum of sunlight can be called full spectrum.

[0003] Currently, artificially created full-spectrum displays do not effectively simulate the full solar spectrum. Furthermore, the full spectrum emitted by existing light sources or lamps does not contain violet light or contains only a weak amount of violet light, which cannot suppress the phenomenon of excessive axial elongation. Utility Model Content

[0004] The purpose of this application is to provide a light source, light source device and lamp that can better simulate the solar spectrum and inhibit excessive elongation of the eye axis to a certain extent, thereby slowing down the occurrence of myopia.

[0005] To achieve the above objectives, this application provides the following solution:

[0006] In a first aspect, this application provides a light source that slows down the occurrence of myopia. The light source is used to emit light with a spectrum that slows down myopia, and the light emitted by the light source includes violet light with a wavelength range of 350nm to 430nm and a spectral color temperature range of 2500K to 3300K.

[0007] The light emitted by the light source has different proportions of relative intensity and relative spectral energy content for each wavelength band, in order to define the spectral shape that reduces myopia.

[0008] Secondly, this application provides a light source device for mitigating the occurrence of myopia, including a light-emitting module; the light-emitting module is composed of multiple light sources for mitigating the occurrence of myopia;

[0009] The light-emitting module is used to emit light that reduces myopia, and the light emitted by the light-emitting module includes violet light with a wavelength of 350nm to 430nm and a spectral color temperature of 2500K to 3300K.

[0010] The light emitted by the light-emitting module has different proportions of relative intensity and relative spectral energy content in each wavelength band, so as to define the spectral shape of the spectrum that reduces myopia.

[0011] Optionally, the light-emitting module is a light-emitting diode chip; the number of light-emitting diode chips is one or more; when the number of light-emitting diode chips is one, the light-emitting diode chip is used to emit light in the wavelength band of 350nm to 480nm; when the number of light-emitting diode chips is multiple, the wavelength bands of the light emitted by the multiple light-emitting diode chips are different or the same.

[0012] Optionally, the light-emitting module further includes phosphor; the light-emitting diode chip serves as the excitation light, and the phosphor serves as the excited light; the light emitted by the light-emitting diode chip irradiates the phosphor to form light that reduces myopia spectrum.

[0013] Optionally, the light-emitting module further includes quantum dots; the light-emitting diode chip serves as the excitation light, and the quantum dots serve as the excited light; the light emitted by the light-emitting diode chip illuminates the quantum dots to form light that reduces myopia.

[0014] Optionally, the light-emitting module further includes a quantum dot phosphor mixture; the light-emitting diode chip serves as the excitation light, and the quantum dot phosphor mixture serves as the excited light; the light emitted by the light-emitting diode chip irradiates the quantum dot phosphor mixture to form light that reduces myopia.

[0015] Optionally, the wavelengths of light that reduce myopia include: 350nm–400nm, 401nm–418nm, 419nm–438nm, 439nm–460nm, 461nm–480nm, 481nm–560nm, 561nm–616nm, 617nm–640nm, and 641nm–780nm;

[0016] The relative intensity ratio of light in the 350nm to 400nm band ranges from 0.01 to 0.5.

[0017] The relative intensity ratio of light in the wavelength band of 401nm to 418nm ranges from 0.01 to 0.4.

[0018] The relative intensity ratio of light in the wavelength band of 419nm to 438nm ranges from 0.01 to 0.32.

[0019] The relative intensity ratio of light in the wavelength band of 439nm to 460nm ranges from 0.2 to 0.8.

[0020] The relative intensity ratio of light in the wavelength band of 461nm to 480nm ranges from 0.08 to 0.38.

[0021] The relative intensity ratio of light in the wavelength band of 481nm to 560nm ranges from 0.1 to 0.74.

[0022] The relative intensity ratio of light in the wavelength band of 561nm to 616nm ranges from 0.38 to 1.

[0023] The relative intensity ratio of light in the wavelength band of 617nm to 640nm ranges from 0.38 to 1.

[0024] The relative intensity ratio of light in the band of 641nm to 780nm ranges from 0.52 to 0.01.

[0025] Optionally, the maximum value of the relative spectral energy content ratio in the band of 350nm to 400nm is 4.6706%, and the minimum value of the relative spectral energy content ratio in the band of 350nm to 400nm is 0.0124%.

[0026] The maximum relative spectral energy content ratio in the 401nm–418nm band is 3.4671%, and the minimum relative spectral energy content ratio in the 401nm–418nm band is 0.0141%.

[0027] The maximum relative spectral energy content ratio in the 419nm–438nm band is 4.1853%, and the minimum relative spectral energy content ratio in the 419nm–438nm band is 0.1492%.

[0028] The maximum relative spectral energy content ratio in the 439nm–460nm band is 5.5438%, and the minimum relative spectral energy content ratio in the 439nm–460nm band is 1.6250%.

[0029] The maximum relative spectral energy content ratio in the 461nm–480nm band is 4.1793%, and the minimum relative spectral energy content ratio in the 461nm–480nm band is 2.2242%.

[0030] The maximum relative spectral energy content ratio in the band of 481nm to 560nm is 22.1189%, and the minimum relative spectral energy content ratio in the band of 481nm to 560nm is 20.9767%.

[0031] The maximum relative spectral energy content ratio in the band of 561nm to 616nm is 24.0234%, and the minimum relative spectral energy content ratio in the band of 561nm to 616nm is 37.3952%.

[0032] The maximum relative spectral energy content ratio in the 617nm–640nm band is 10.9162%, and the minimum relative spectral energy content ratio in the 617nm–640nm band is 18.6151%.

[0033] The maximum relative spectral energy content ratio in the 641nm–780nm band is 25.5660%, and the minimum relative spectral energy content ratio in the 641nm–780nm band is 19.0005%.

[0034] Secondly, this application provides a lamp, including: a housing, a substrate, and a plurality of the above-mentioned light source devices for mitigating myopia; the substrate is disposed inside the housing; the plurality of light source devices for mitigating myopia are all fixed on the substrate, and the plurality of light source devices for mitigating myopia are all connected to a power source.

[0035] Optionally, the surface of the light-emitting module or the light-emitting surface of the lamp is provided with a fluorescent film, a quantum dot film, or a quantum dot phosphor mixture film.

[0036] According to the specific embodiments provided in this application, the following technical effects are disclosed:

[0037] This application provides a light source, light source device, and lamp that slows down the occurrence of myopia. The light source emits a spectrum that reduces myopia by adding violet light. The addition of trace amounts of violet light can better simulate the solar spectrum. Furthermore, the spectrum that reduces myopia includes violet light in the 350nm–430nm wavelength range and a spectral color temperature range of 2500K–3300K. When used for illumination, it can promote the formation of dopamine and melatonin, making the eye's mechanisms healthier to a certain extent. This, in turn, can inhibit excessive axial elongation, slow down the occurrence of myopia, and prevent myopia. Simultaneously, by limiting the relative intensity ratio and relative spectral energy content ratio of each wavelength band, the spectral shape of the spectrum that reduces myopia can be defined. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the internal structure of a lamp provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the overall structure of a lamp provided in an embodiment of this application. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] In one exemplary embodiment, a light source for mitigating myopia is provided for emitting light with a myopia-mitigating spectrum, wherein the light emitted by the light source includes violet light with a wavelength range of 350nm to 430nm and a spectral color temperature range of 2500K to 3300K.

[0044] The light emitted by the light source has different proportions of relative intensity and relative spectral energy content for each wavelength band, in order to define the spectral shape that reduces myopia.

[0045] In another exemplary embodiment, a light source device for mitigating myopia is provided, including a light-emitting module. The light-emitting module comprises a plurality of light sources for mitigating myopia.

[0046] The light-emitting module is used to emit light that reduces myopia, and the light emitted by the light-emitting module includes violet light with a wavelength of 350nm to 430nm and a spectral color temperature range of 2500K to 3300K, which is relatively low.

[0047] In one exemplary embodiment, the light that reduces the myopia spectrum can be full-spectrum white light.

[0048] The light emitted by the light-emitting module has different proportions of relative intensity and relative spectral energy content in each wavelength band, so as to define the spectral shape of the spectrum that reduces myopia.

[0049] The light source device for mitigating myopia provided in this application emits violet light into its spectrum. The addition of trace amounts of violet light can better simulate the solar spectrum. In this application, the violet light content is 0%-50% of the total spectrum content, and the other light in the spectrum can be any spectrum, including but not limited to the full spectrum of blue light and the full spectrum of violet light.

[0050] The light source device for slowing down the onset of myopia provided in this application can be used for illumination. The light emitted by this device contains trace amounts of violet light. Experiments have shown that violet light with a wavelength of 350nm–430nm and a spectral color temperature of 2500K–3300K can promote the formation of dopamine and melatonin, and increase the excitability of dopamine receptors, thereby affecting the growth and development of the axial length of the eye. Because of its specific spectrum, it can increase the permeability of the lumen of the fundus, making the eye's mechanisms healthier to a certain extent, thus inhibiting excessive axial elongation, slowing down the onset of myopia, and achieving the effect of myopia prevention.

[0051] In one exemplary embodiment, the following 10 implementation methods of the light-emitting module are provided, but are not limited to these, as long as they can emit the light that reduces the myopia spectrum mentioned above.

[0052] (1) The light-emitting module is a light-emitting diode (LED) chip, which is used to emit light in the wavelength range of 350nm to 480nm. .

[0053] (2) The light-emitting module includes an LED chip and a phosphor. The LED chip serves as the excitation light, and the phosphor serves as the excited carrier. The light emitted by the LED chip irradiates the phosphor to form light that reduces myopia. That is, the LED chip and phosphor can emit white light containing violet light of 350nm to 430nm by mixing.

[0054] (3) The light-emitting module includes two LED chips, which are connected in series or in parallel. One LED chip is used to emit violet light in the wavelength range of 350nm to 430nm, and the other LED chip is used to emit light in the wavelength range of 430nm to 500nm. The arrangement and connection of the LED chips do not affect the spectrum.

[0055] (4) Based on the method in (3), the light-emitting module also includes phosphor, two LED chips as excitation light, phosphor as the excited carrier, and the light emitted by the two LED chips irradiates the phosphor to form light that reduces myopia spectrum.

[0056] That is, LED chips that can emit ultraviolet light and violet light in the wavelength range of 350nm to 430nm are connected in series or in parallel with LED chips that can emit light in the wavelength range of 430nm to 500nm and mixed with phosphor to form white light.

[0057] (5) Based on the method in (4), the number of LED chips that emit light in the 430nm-500nm band is multiple. That is, the ratio of LED chips in the 350nm-430nm band to LED chips in the 430nm-500nm band can be 1:1, 1:N, or N:1, where N is the number of LED chips and N>1.

[0058] (6) Based on method (4), two LED chips are mixed with phosphors to form white light, and then combined. That is, an LED chip that can emit ultraviolet light and violet light in the wavelength range of 350nm to 430nm is mixed with phosphors to form white light, and then mixed with an LED chip that can emit light in the wavelength range of 430nm to 500nm and phosphors to form white light, and then combined to form white light.

[0059] (7) The light-emitting module includes multiple LED chips, which are stacked to form a light source device to slow down the occurrence of myopia. The light emitted by the multiple LED chips are either different or the same, wherein at least one LED chip is used to emit violet light in the range of 350nm to 430nm.

[0060] This is achieved by stacking multiple LED chips. Each band of the myopia-reducing spectrum is illuminated by one LED chip, and the stacking of multiple LED chips forms the myopia-reducing spectrum.

[0061] (8) Prepare fluorescent films from the phosphors in methods (2), (4), (5) and (6).

[0062] (9) Replace the phosphor in methods (2), (4), (5), and (6) with quantum dots. Quantum dots can be used to prepare quantum dot films.

[0063] (10) Replace the phosphor in the (2), (4), (5) and (6) methods with a mixture of quantum dot phosphors.

[0064] (11) Replace the LED chip in all the above implementation methods with a laser chip or a blue light chip.

[0065] In this embodiment, the wavelengths of light that reduce myopia include: 350nm~400nm, 401nm~418nm, 419nm~438nm, 439nm~460nm, 461nm~480nm, 481nm~560nm, 561nm~616nm, 617nm~640nm, and 641nm~780nm.

[0066] The relative intensity ratio of light in the 350nm to 400nm band ranges from 0.01 to 0.5.

[0067] The relative intensity ratio of light in the band of 401nm to 418nm ranges from 0.01 to 0.4.

[0068] The relative intensity ratio of light in the band of 419nm to 438nm ranges from 0.01 to 0.32.

[0069] The relative intensity ratio of light in the band of 439nm to 460nm ranges from 0.2 to 0.8.

[0070] The relative intensity ratio of light in the band of 461nm to 480nm ranges from 0.08 to 0.38.

[0071] The relative intensity ratio of light in the wavelength band of 481nm to 560nm ranges from 0.1 to 0.74.

[0072] The relative intensity ratio of light in the band of 561nm to 616nm ranges from 0.38 to 1.

[0073] The relative intensity ratio of light in the 617nm to 640nm band ranges from 0.38 to 1.

[0074] The relative intensity ratio of light in the band of 641nm to 780nm ranges from 0.52 to 0.01.

[0075] The relative spectral energy content ratios of different bands of the myopia spectrum are shown in Table 1.

[0076] Table 1. Ratio of energy content in each band of the relative spectrum

[0077] band Maximum value Minimum value 350nm~400nm 4.6706％ 0.0124％ 401nm~418nm 3.4671％ 0.0141％ 419nm~438nm 4.1853％ 0.1492％ 439nm~460nm 5.5438％ 1.6250％ 461nm~480nm 4.1793％ 2.2242％ 481nm~560nm 22.1189％ 20.9767％ 561nm~616nm 24.0234％ 37.3952％ 617nm~640nm 10.9162％ 18.6151％ 641nm~780nm 25.5660％ 19.0005％ total 100.0000％ 100.0000％

[0078] This application uses the aforementioned relative intensity light height ratio as a constraint on the spectral shape and the relative spectral energy content ratio as the maximum and minimum fluctuation values ​​of light in each band of the spectrum, thereby limiting the shape of the spectrum that mitigates myopia.

[0079] The light source device for reducing myopia provided in this application can be used in any light-emitting or lighting device, such as lamps or displays.

[0080] In one exemplary embodiment, this application also provides a luminaire for indoor lighting, such as... Figure 1 As shown, the lamp includes a housing 1, a substrate 2, and a plurality of the aforementioned light source devices 3 for mitigating myopia. The substrate 2 is disposed inside the housing 1. The plurality of light source devices 3 for mitigating myopia are all fixed on the substrate 2 and are all connected to a power source. Illumination using the lamp provided in this application can suppress excessive elongation of the eye axis compared to existing lamps, thereby preventing myopia.

[0081] Specifically, each light source device 3 that reduces myopia is first processed into a single LED, resulting in multiple LEDs. These multiple LEDs are then evenly arranged on a substrate 2, which is then placed inside the housing 1. Figure 2 As shown, the lamp can be lit by installing the housing 1, the substrate 2, and the light source device 3 that reduces myopia into the lamp 6. Here, 4 is the entire lamp housing and 5 is the light-emitting surface of the lamp.

[0082] In this application, a fluorescent film, a quantum dot film, or a quantum dot phosphor mixture film can be applied to the surface of the light-emitting module or the surface of the housing 1 (the light-emitting surface of the lamp). Alternatively, the fluorescent film or quantum dot film can be applied to the surface of each lamp bead. Or, phosphor can be directly used in the fabrication of the housing.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A light source that slows down the onset of myopia, characterized in that, The light source that slows down myopia is used to emit light with a spectrum that slows down myopia, and the light emitted by the light source includes violet light with a wavelength of 350nm to 430nm and a spectral color temperature of 2500K to 3300K. The light emitted by the light source has different proportions of relative intensity and relative spectral energy content for each wavelength band, in order to define the spectral shape that reduces myopia.

2. A light source device for slowing down the onset of myopia, characterized in that, The light source device for mitigating myopia includes a light-emitting module; the light-emitting module is composed of multiple light sources for mitigating myopia as described in claim 1; The light-emitting module is used to emit light that reduces myopia, and the light emitted by the light-emitting module includes violet light with a wavelength of 350nm to 430nm and a spectral color temperature of 2500K to 3300K. The light emitted by the light-emitting module has different proportions of relative intensity and relative spectral energy content in each wavelength band, so as to define the spectral shape of the spectrum that reduces myopia.

3. The light source device for mitigating myopia according to claim 2, characterized in that, The light-emitting module is a light-emitting diode chip; the number of light-emitting diode chips is one or more; when the number of light-emitting diode chips is one, the light-emitting diode chip is used to emit light in the wavelength band of 350nm to 480nm; when the number of light-emitting diode chips is multiple, the wavelength bands of the light emitted by the multiple light-emitting diode chips are different or the same.

4. The light source device for mitigating myopia according to claim 3, characterized in that, The light-emitting module also includes phosphor; the light-emitting diode chip serves as the excitation light, and the phosphor serves as the excited light; the light emitted by the light-emitting diode chip illuminates the phosphor to form light that reduces myopia.

5. The light source device for mitigating myopia according to claim 3, characterized in that, The light-emitting module also includes quantum dots; the light-emitting diode chip serves as the excitation light, and the quantum dots serve as the excited light; the light emitted by the light-emitting diode chip illuminates the quantum dots to form light that reduces myopia.

6. The light source device for mitigating myopia according to claim 3, characterized in that, The light-emitting module also includes a quantum dot phosphor mixture; the light-emitting diode chip serves as the excitation light, and the quantum dot phosphor mixture serves as the excited light; the light emitted by the light-emitting diode chip irradiates the quantum dot phosphor mixture to form light that reduces myopia.

7. The light source device for mitigating myopia according to claim 2, characterized in that, The wavelengths of light that reduce myopia include: 350nm–400nm, 401nm–418nm, 419nm–438nm, 439nm–460nm, 461nm–480nm, 481nm–560nm, 561nm–616nm, 617nm–640nm, and 641nm–780nm; The relative intensity ratio of light in the wavelength band of 350nm to 400nm ranges from 0.01 to 0.

5. The relative intensity ratio of light in the wavelength band of 401nm to 418nm ranges from 0.01 to 0.

4. The relative intensity ratio of light in the wavelength band of 419nm to 438nm ranges from 0.01 to 0.

32. The relative intensity ratio of light in the wavelength band of 439nm to 460nm ranges from 0.2 to 0.

8. The relative intensity ratio of light in the wavelength band of 461nm to 480nm ranges from 0.08 to 0.

38. The relative intensity ratio of light in the wavelength band of 481nm to 560nm ranges from 0.1 to 0.

74. The relative intensity ratio of light in the wavelength band of 561nm to 616nm ranges from 0.38 to 1. The relative intensity ratio of light in the wavelength band of 617nm to 640nm ranges from 0.38 to 1. The relative intensity ratio of light in the band of 641nm to 780nm ranges from 0.52 to 0.

01.

8. The light source device for mitigating myopia according to claim 7, characterized in that, The maximum relative spectral energy content ratio in the 350nm–400nm band is 4.6706%, and the minimum relative spectral energy content ratio in the 350nm–400nm band is 0.0124%. The maximum relative spectral energy content ratio in the 401nm–418nm band is 3.4671%, and the minimum relative spectral energy content ratio in the 401nm–418nm band is 0.0141%. The maximum relative spectral energy content ratio in the 419nm–438nm band is 4.1853%, and the minimum relative spectral energy content ratio in the 419nm–438nm band is 0.1492%. The maximum relative spectral energy content ratio in the 439nm–460nm band is 5.5438%, and the minimum relative spectral energy content ratio in the 439nm–460nm band is 1.6250%. The maximum relative spectral energy content ratio in the 461nm–480nm band is 4.1793%, and the minimum relative spectral energy content ratio in the 461nm–480nm band is 2.2242%. The maximum relative spectral energy content ratio in the band of 481nm to 560nm is 22.1189%, and the minimum relative spectral energy content ratio in the band of 481nm to 560nm is 20.9767%. The maximum relative spectral energy content ratio in the band of 561nm to 616nm is 24.0234%, and the minimum relative spectral energy content ratio in the band of 561nm to 616nm is 37.3952%. The maximum relative spectral energy content ratio in the 617nm–640nm band is 10.9162%, and the minimum relative spectral energy content ratio in the 617nm–640nm band is 18.6151%. The maximum relative spectral energy content ratio in the 641nm–780nm band is 25.5660%, and the minimum relative spectral energy content ratio in the 641nm–780nm band is 19.0005%.

9. A lamp, characterized in that, The lamp includes: a housing, a substrate, and a plurality of light source devices for mitigating myopia as described in any one of claims 2 to 8; the substrate is disposed inside the housing; the plurality of light source devices for mitigating myopia are all fixed on the substrate, and the plurality of light source devices for mitigating myopia are all connected to a power source.

10. The lamp according to claim 9, characterized in that, The surface of the light-emitting module or the light-emitting surface of the lamp is provided with a fluorescent film, a quantum dot film, or a mixture of quantum dot phosphors.

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