Red-light fluorescent composition, red-light fluorescent film and LED (light-emitting diode) light source for reducing blood sugar by light

Abstract

The invention relates to the technical field of phototherapy light sources, in particular to a red-light fluorescent composition, a red-light fluorescent film and an LED light source for reducing blood sugar by light. The red-light fluorescent composition for reducing blood sugar by light provided by the invention comprises first fluorescent powder, second fluorescent powder and third fluorescent powder. The first fluorescent powder comprises fluorescent powder A and fluorescent powder B. And the second fluorescent powder comprises fluorescent powder C and fluorescent powder D. And the third fluorescent powder comprises fluorescent powder A, fluorescent powder B, fluorescent powder C and fluorescent powder D. Preferably, the first fluorescent powder and the second fluorescent powder are separately arranged and are combined for use; and the third fluorescent powder is independently used. The red light emitted by the red light fluorescent composition is smooth in wave crest in a spectrogram and concentrated at the wave band of 630-700nm through matching of the fluorescent powder with different light-emitting wavelengths, and the light-controlled blood glucose effect can be remarkably achieved when the red light fluorescent composition is applied to light-controlled blood glucose equipment.

Description

Technical Field

[0001] The invention relates to the technical field of light source for phototherapy, and in particular to a red fluorescent composition, a red fluorescent film and an LED light source for photoreducing blood sugar. Background Art

[0002] Photohyperglycemia is achieved by irradiating the human eye with red light, which enables the human eye to perceive red light of a specific wavelength, activate the photosensitive retinal ganglion cells ipRGCs (special photoreceptor cells), transmit signals through the optic nerve to a series of nerve nuclei in the hypothalamus and medulla oblongata, and ultimately act on the peripheral brown adipose tissue BAT through the sympathetic nerves, which can affect the metabolism of blood sugar and thus achieve blood sugar control.

[0003] For example, the patent application with publication number CN119258408A discloses a wearable photo-hypoglycemic device, system and eye mask. The wearable photo-hypoglycemic device includes: a wearing unit for being worn by a user; and a lighting unit for projecting red light into the human eye. For another example, the Chinese patent application with publication number CN119031534A discloses a photo-hypoglycemic lighting device and system. The lighting device includes: a lighting light source for emitting lighting light. The lighting light source includes a red light LED and a white light LED. A power module for supplying power to the lighting light source. The power module is configured with two power supply outputs, the first power supply output is connected to the red light LED, and the second power supply output is connected to the white light LED. A processing unit is used to adjust the light emission mode of the lighting light source.

[0004] The technical solutions of the above two patent applications are to use 600nm-720nm red light to illuminate the human eye to achieve photoreduction of blood sugar. Through a large number of photoreduction blood sugar application tests, it was found that the photoreduction effect of blood sugar was normally distributed in the wavelength range of 600-720nm, and the photoreduction effect of 630-700nm red light was the most significant. However, the existing LED light sources for photoreduction of blood sugar lack light sources that can emit light with a wide spectrum of 630-700nm. Summary of the invention

[0005] The purpose of the present invention is to fill the gap of the existing LED light sources for photoreduction of blood sugar, which lack an LED light source that emits light with a wide spectrum of 630 to 700 nm, to provide a red light fluorescent composition, a red light fluorescent film and an LED light source for photoreduction of blood sugar, and to provide a light source that can significantly achieve a photoreduction effect on a photoreduction blood sugar device, specifically to provide a light source that emits red light in a wide spectral band, and its wide spectral range is 630 to 700 nm.

[0006] The present invention provides a red light fluorescent composition for photoreducing blood sugar, comprising: a first fluorescent powder, a second fluorescent powder and a third fluorescent powder. The first fluorescent powder comprises fluorescent powder A and fluorescent powder B. The second fluorescent powder comprises fluorescent powder A and fluorescent powder C. The third fluorescent powder comprises fluorescent powder A, fluorescent powder B, fluorescent powder C and fluorescent powder D. Preferably, the first fluorescent powder and the second fluorescent powder are separately provided and used in combination; the third fluorescent powder is used independently.

[0007] According to a preferred embodiment, the emission wavelength of the phosphor A is 660-670 nm. The emission wavelength of the phosphor B is 670-700 nm. The emission wavelength of the phosphor C is 700-720 nm. The emission wavelength of the phosphor D is 720-800 nm. When the first phosphor and the second phosphor are separately provided and used in combination, the mass ratio of the phosphor A to the phosphor B in the first phosphor is 45-65:35-55. When the first phosphor and the second phosphor are separately provided and used in combination, the mass ratio of the phosphor C to the phosphor D in the second phosphor is 70-90:10-30. When the third phosphor is used independently, the mass ratio of the phosphor A, the phosphor B, the phosphor C and the phosphor D is 25-50:20-45:10-35:5-15.

[0008] The present invention also provides a red fluorescent film for photoreducing blood sugar, comprising: a first fluorescent film, a first fluorescent film, a second fluorescent film and a third fluorescent film. The material of the first fluorescent film comprises a first film-forming material and the first fluorescent powder contained in the red fluorescent composition provided by the present invention dispersed in the first film-forming material. The material of the second fluorescent film comprises a second film-forming material and the second fluorescent powder contained in the red fluorescent composition provided by the present invention dispersed in the second film-forming material. The material of the third fluorescent film comprises a third film-forming material and the third fluorescent powder contained in the red fluorescent composition provided by the present invention dispersed in the third film-forming material.

[0009] According to a preferred embodiment, the concentration of the first phosphor in the first phosphor film is 40-87%, the concentration of the second phosphor in the second phosphor film is 30-87%, and the concentration of the third phosphor in the third phosphor film is 40-87%.

[0010] According to a preferred embodiment, the first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by a lamination method. The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.06-0.60 mm.

[0011] According to a preferred embodiment, the first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by a film spraying method. The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.001-0.01 mm.

[0012] According to a preferred embodiment, the first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by dispensing method. The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.06-0.60 mm.

[0013] The present invention also provides an LED light source for photoreducing blood sugar, comprising a chip and a red fluorescent film arranged on the optical path of the chip. The red fluorescent film is the red fluorescent film provided by the present invention.

[0014] According to a preferred embodiment, the light emitting wavelength range of the chip is 440nm to 475nm.

[0015] According to a preferred embodiment, the arrangement of the red fluorescent film on the optical path of the chip includes the following two ways: the first fluorescent film and the second fluorescent film are arranged in combination; the third fluorescent film is arranged separately. When the first fluorescent film and the second fluorescent film are arranged on the optical path of the chip, the first fluorescent film is close to the chip, and the second fluorescent film is far away from the chip.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The red light fluorescent composition for photoreduction of blood sugar provided by the present invention comprises: a first fluorescent powder, a second fluorescent powder and a third fluorescent powder. The first fluorescent powder comprises fluorescent powder A and fluorescent powder B. The second fluorescent powder comprises fluorescent powder C and fluorescent powder D. The third fluorescent powder comprises fluorescent powder A, fluorescent powder B, fluorescent powder C and fluorescent powder D. Preferably, the first fluorescent powder and the second fluorescent powder are separately arranged and used in combination; the third fluorescent powder is used independently. By matching the fluorescent powders with different luminous wavelengths, the red light emitted by the red light fluorescent composition of the present invention has a smooth peak in the spectrum graph and is concentrated in the band of 630 to 700 nm. When applied to the photoreduction blood sugar device, it can significantly achieve the photoreduction blood sugar effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the normal distribution diagram of the light-controlled blood sugar effect of 600-720nm red light;

[0019] Figure 2 This is a spectrum diagram of a double-layer fluorescent film LED prepared by a film pressing method according to a preferred embodiment of the present invention;

[0020] Figure 3 This is a spectrum diagram of a single-layer fluorescent film LED prepared by a film pressing method according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a spectrum diagram of a double-layer fluorescent film LED prepared by a film spraying method according to a preferred embodiment of the present invention;

[0022] Figure 5 This is a spectrum diagram of a single-layer fluorescent film LED prepared by a film spraying method according to a preferred embodiment of the present invention;

[0023] Figure 6 This is a spectrum diagram of a double-layer fluorescent film LED prepared by a dispensing method according to a preferred embodiment of the present invention;

[0024] Figure 7 This is a spectrum diagram of a single-layer fluorescent film LED prepared by a dispensing method according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0026] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0028] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0029] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0030] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0031] Example 1

[0032] This embodiment provides a red light fluorescent composition for photoreducing blood sugar, comprising: a first fluorescent powder, a second fluorescent powder and a third fluorescent powder. The first fluorescent powder comprises fluorescent powder A and fluorescent powder B. The second fluorescent powder comprises fluorescent powder C and fluorescent powder D.

[0033] The third phosphor includes phosphor A, phosphor B, phosphor C and phosphor D.

[0034] Preferably, the first phosphor and the second phosphor are separately provided and used in combination; and the third phosphor is used independently.

[0035] Preferably, the emission wavelength of phosphor A is 660-670 nm. The emission wavelength of phosphor B is 670-700 nm. The emission wavelength of phosphor C is 700-720 nm. The emission wavelength of phosphor D is 720-800 nm.

[0036] Preferably, phosphor A, phosphor B, phosphor C and phosphor D may include at least one of nitride red powder and fluoride red powder, respectively. Preferably, phosphor A, phosphor B, phosphor C and phosphor D may be independently but not limited to calcium strontium aluminum silicon nitrogen tris, potassium fluorosilicate. Preferably, phosphor A, phosphor B, phosphor C and phosphor D may be directly commercially available according to the luminescent wavelength. Preferably, any one of phosphor A, phosphor B, phosphor C and phosphor D1 may include several compounds, but is not limited thereto, and may include only one pure compound or a mixture of multiple compounds.

[0037] Preferably, the emission wavelength of phosphor A is 660 nm. The emission wavelength of phosphor B is 679 nm. The emission wavelength of phosphor C is 720 nm. The emission wavelength of phosphor D is 740 nm.

[0038] When the first phosphor and the second phosphor are separately provided and used in combination, the mass ratio of phosphor A to phosphor B in the first phosphor is 45-65:35-55. When the first phosphor and the second phosphor are separately provided and used in combination, the mass ratio of phosphor C to phosphor D in the second phosphor is 70-90:10-30. When the third phosphor is used independently, the mass ratio of phosphor A, phosphor B, phosphor C and phosphor D is 25-50:20-45:10-35:5-15.

[0039] The researchers used red light in the range of 600nm to 720nm to conduct light-controlled blood sugar tests. The specific test plan was to use red light to illuminate the eyes of the test subjects while only changing the wavelength of the red light, and to calculate the proportion of the test subjects' blood sugar levels decreasing after a meal. The test results are as follows: Figure 1 As shown, the light-controlled blood sugar effect is normally distributed, and the light-controlled blood sugar effect of 630-700nm red light is the most significant, and the blood sugar reduction ratio exceeds 20%. In this embodiment, by adjusting the mass ratio and combination of phosphor A, phosphor B, phosphor C and phosphor D, the red light spectrum of the obtained red light fluorescent composition has a gentle peak and is concentrated in the 630-700nm band. When applied to the light-controlled blood sugar device, it can achieve a significant light-controlled blood sugar effect.

[0040] Example 2

[0041] This embodiment provides a red fluorescent film for photoreducing blood sugar, including: a first fluorescent film, a second fluorescent film, a second fluorescent film and a third fluorescent film.

[0042] The material of the first fluorescent film includes a first film-forming material and a first fluorescent powder contained in the red fluorescent composition provided in Example 1 and dispersed in the first film-forming material.

[0043] The material of the second fluorescent film includes a second film-forming material and a second fluorescent powder contained in the red fluorescent composition provided in Example 1 and dispersed in the second film-forming material.

[0044] The material of the third fluorescent film includes a third film-forming material and the third fluorescent powder contained in the red fluorescent composition provided in Example 1 dispersed in the third film-forming material.

[0045] Preferably, the first film-forming material, the second film-forming material and the third film-forming material include at least one of silica gel and epoxy resin. Silica gel has excellent properties such as good light transmittance, atmospheric aging resistance and ultraviolet aging resistance, so that the red fluorescent film has good light transmittance and is not easy to turn yellow due to aging during use.

[0046] Preferably, the first film-forming material, the second film-forming material and the third film-forming material are all made of silica gel.

[0047] Preferably, the concentration of the first phosphor in the first phosphor film is 40-87%, the concentration of the second phosphor in the second phosphor film is 30-87%, and the concentration of the third phosphor in the third phosphor film is 40-87%.

[0048] Preferably, the first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by a lamination method. The thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.06-0.60 mm.

[0049] Preferably, the first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by a film spraying method. The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.001-0.01 mm.

[0050] Preferably, the first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by dispensing method. The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.06-0.60 mm.

[0051] Example 3

[0052] This embodiment provides an LED light source for photoreducing blood sugar, comprising a chip and a red fluorescent film arranged on the optical path of the chip. The red fluorescent film is the red fluorescent film provided in Example 2.

[0053] The LED light source provided in this embodiment utilizes a blue light chip to emit blue light, which excites the fluorescent powder in the red light fluorescent film to generate red light that can be used to photo-lower blood sugar.

[0054] Preferably, the emission wavelength range of the chip is 440nm to 475nm. Preferably, the arrangement of the red fluorescent film on the chip optical path includes the following two methods: a first fluorescent film and a second fluorescent film are arranged in combination; a third fluorescent film is arranged separately. When the first fluorescent film and the second fluorescent film are arranged on the chip optical path, the first fluorescent film is close to the chip and the second fluorescent film is far away from the chip, that is, the blue light emitted by the chip first passes through the first fluorescent film and then passes through the second fluorescent film.

[0055] Preferably, the LED light source provided in this embodiment uses a blue light chip to illuminate the red light fluorescent film to obtain a wide spectrum red light with a light emission band of 600nm to 720nm, which matches the optimal band range for photoreduction of blood sugar. The LED light source provided in this embodiment is applied to a light-controlled blood sugar device to achieve a significant light-controlled blood sugar effect.

[0056] Example 4

[0057] This embodiment is a further improvement of embodiment 3, and the repeated contents are not repeated. This embodiment provides an LED light source with a double-layer fluorescent film prepared by a lamination method, and the LED light source in this embodiment is prepared by using the red fluorescent composition provided by embodiment 1 and the red fluorescent film provided by embodiment 2.

[0058] Preferably, in this embodiment, the wavelength range of the chip is 440nm to 475nm, and more preferably, the wavelength range of the blue light chip in the LED is 450nm to 460nm.

[0059] Preferably, two layers of fluorescent films prepared by lamination are arranged on the optical path of the chip.

[0060] Preferably, the two layers of fluorescent films have different fluorescent powder formulas and are formed by pressing.

[0061] The first layer of fluorescent film contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 649nm.

[0062] The second layer of fluorescent film contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 700nm.

[0063] Preferably, of the two layers of fluorescent film, the layer of fluorescent film with a lower excitation peak wavelength is close to the chip, and the layer of fluorescent film with a higher excitation peak wavelength is far away from the chip.

[0064] The blue light emitted by the chip first passes through the first layer of fluorescent film and then passes through the second layer of fluorescent film.

[0065] Preferably, this embodiment provides three formulations, namely formulation one, formulation two and formulation three.

[0066] Preferably, formula one is:

[0067] When the wavelength range of the chip is 440nm to 475nm, especially 440nm to 460nm, the first fluorescent film layer adopts the first fluorescent film, and the second fluorescent film layer adopts the second fluorescent film.

[0068] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 40-87%; the mass ratio of fluorescent powder A to fluorescent powder B in the first fluorescent powder is 45-65:35-55; the film thickness of the first fluorescent film is 0.06mm-0.60mm.

[0069] After the second phosphor in the second phosphor film is mixed with silica gel, the concentration of the second phosphor is 40-87%; the mass ratio of phosphor C to phosphor D in the second phosphor is 70-90:10-30; the thickness of the second phosphor film is 0.06mm-0.60mm.

[0070] Preferably, formula 2 is:

[0071] Under the condition that the wavelength range of the chip is 440nm to 460nm, the first fluorescent film is the first fluorescent film, and the second fluorescent film is the second fluorescent film.

[0072] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 50-80%; the mass ratio of fluorescent powder A to fluorescent powder B in the first fluorescent powder is 50-60:40-50; the film thickness of the first fluorescent film is 0.06mm-0.60mm.

[0073] After the second fluorescent powder in the second fluorescent film is mixed with silica gel, the concentration of the second fluorescent powder is 50-80%; the mass ratio of fluorescent powder C to fluorescent powder D in the second fluorescent powder is 80-90:10-20; the film thickness of the second fluorescent film is 0.06mm-0.60mm.

[0074] Preferably, formula three is:

[0075] Under the condition that the wavelength range of the chip is 452nm-455nm, the first fluorescent film is the first fluorescent film, and the second fluorescent film is the second fluorescent film.

[0076] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 60-75%; the mass ratio of fluorescent powder A to fluorescent powder B in the first fluorescent powder is 53-57:43-47; the film thickness of the first fluorescent film is 0.06mm-0.60mm.

[0077] After the second phosphor in the second phosphor film is mixed with silica gel, the concentration of the second phosphor is 60-75%; the mass ratio of phosphor C to phosphor D in the second phosphor is 85-90:10-15; the thickness of the second phosphor film is 0.06mm-0.60mm.

[0078] See also Figure 2 In this embodiment, the LED light source of the double-layer fluorescent film prepared by the lamination method according to Formula 1, Formula 2 and Formula 3 has a light-emitting band concentrated in the 630-700nm band with a gentle peak, which can be used in light-controlled blood sugar equipment and can achieve a significant light-controlled blood sugar effect.

[0079] Example 5

[0080] This embodiment is a further improvement of embodiment 3, and the repeated contents are not repeated. This embodiment provides an LED light source with a single-layer fluorescent film prepared by a lamination method, and the LED light source in this embodiment is prepared by using the red fluorescent composition provided by embodiment 1 and the red fluorescent film provided by embodiment 2.

[0081] Preferably, in this embodiment, the wavelength range of the chip is 440nm to 475nm, and more preferably, the wavelength range of the blue light chip in the LED is 450nm to 460nm.

[0082] Preferably, only one layer of fluorescent film prepared by lamination is arranged on the optical path of the chip.

[0083] Preferably, the fluorescent film arranged on the optical path of the chip contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 649 nm.

[0084] Preferably, in this embodiment, a layer of fluorescent film disposed on the optical path of the chip is a third fluorescent film.

[0085] Preferably, this embodiment provides three formulations, namely formulation four, formulation five and formulation six.

[0086] Preferably, formula four is:

[0087] When the wavelength range of the chip is 440nm to 475nm, especially 440nm to 460nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0088] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 40-87%.

[0089] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 25-50:20-45:10-35:5-15.

[0090] The thickness of the third fluorescent film is 0.06 mm to 0.60 mm.

[0091] Preferably, formula five is:

[0092] Under the condition that the wavelength range of the chip is 440nm to 460nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0093] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 50-80%.

[0094] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 28-45:25-40:15-30:5-10.

[0095] The thickness of the third fluorescent film is 0.06 mm to 0.60 mm.

[0096] Preferably, formula six is:

[0097] Under the condition that the wavelength range of the chip is 452nm to 455nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0098] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 60-75%.

[0099] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 30-40:27-35:17-25:5-10.

[0100] The thickness of the third fluorescent film is 0.06 mm to 0.60 mm.

[0101] See also Figure 3 In this embodiment, the LED light source of the single-layer fluorescent film prepared by the lamination method according to Recipe 4, Recipe 5 and Recipe 6 has a light-emitting band concentrated in the 630-700nm band with a gentle peak, which can be used in light-controlled blood sugar equipment and can achieve a significant light-controlled blood sugar effect.

[0102] Example 6

[0103] This embodiment is a further improvement of embodiment 3, and the repeated contents are not repeated. This embodiment provides an LED light source with a double-layer fluorescent film prepared by a film spraying method, and the LED light source in this embodiment is prepared by using the red fluorescent composition provided by embodiment 1 and the red fluorescent film provided by embodiment 2.

[0104] Preferably, in this embodiment, the wavelength range of the chip is 440nm to 475nm, and more preferably, the wavelength range of the blue light chip in the LED is 450nm to 460nm.

[0105] Preferably, two layers of fluorescent films prepared by a film spraying method are arranged on the optical path of the chip.

[0106] Preferably, the phosphor powder formulas of the two layers of fluorescent films are different.

[0107] The first layer of fluorescent film contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 649nm.

[0108] The second layer of fluorescent film contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 700nm.

[0109] Preferably, of the two layers of fluorescent film, the layer of fluorescent film with a lower excitation peak wavelength is close to the chip, and the layer of fluorescent film with a higher excitation peak wavelength is far away from the chip.

[0110] The blue light emitted by the chip first passes through the first layer of fluorescent film and then passes through the second layer of fluorescent film.

[0111] Preferably, this embodiment provides three recipes, namely recipe seven, recipe eight and recipe nine.

[0112] Preferably, formula seven is:

[0113] When the wavelength range of the chip is 440nm to 475nm, especially 440nm to 460nm, the first fluorescent film layer adopts the first fluorescent film, and the second fluorescent film layer adopts the second fluorescent film.

[0114] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 40-87%; the mass ratio of fluorescent powder A to fluorescent powder B in the first fluorescent powder is 45-65:35-55; the film thickness of the first fluorescent film is 0.001mm-0.01mm.

[0115] After the second phosphor in the second phosphor film is mixed with silica gel, the concentration of the second phosphor is 30-85%; the mass ratio of phosphor C to phosphor D in the second phosphor is 70-90:10-30; the thickness of the second phosphor film is 0.001mm-0.01mm.

[0116] Preferably, formula eight is:

[0117] Under the condition that the wavelength range of the chip is 440nm to 460nm, the first fluorescent film is the first fluorescent film, and the second fluorescent film is the second fluorescent film.

[0118] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 50-80%; the mass ratio of fluorescent powder A to fluorescent powder B in the first fluorescent powder is 50-60:40-50; the film thickness of the first fluorescent film is 0.002mm-0.006mm.

[0119] After the second phosphor in the second phosphor film is mixed with silica gel, the concentration of the second phosphor is 40-75%; the mass ratio of phosphor C to phosphor D in the second phosphor is 80-90:10-20; the thickness of the second phosphor film is 0.002mm-0.006mm.

[0120] Preferably, formula nine is:

[0121] Under the condition that the wavelength range of the chip is 452nm-455nm, the first fluorescent film is the first fluorescent film, and the second fluorescent film is the second fluorescent film.

[0122] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 60-75%; the mass ratio of fluorescent powder A to fluorescent powder B in the first fluorescent powder is 53-57:43-47; the film thickness of the first fluorescent film is 0.002mm-0.003mm.

[0123] After the second phosphor in the second phosphor film is mixed with silica gel, the concentration of the second phosphor is 60-75%; the mass ratio of phosphor C to phosphor D in the second phosphor is 85-90:10-15; the thickness of the second phosphor film is 0.002mm-0.003mm.

[0124] See also Figure 4 In this embodiment, the LED light source of the double-layer fluorescent film prepared by the film spraying method according to Recipe 7, Recipe 8 and Recipe 9 has a light-emitting band concentrated in the 630-700nm band with a gentle peak, which can be used in light-controlled blood sugar equipment and can achieve a significant light-controlled blood sugar effect.

[0125] Example 7

[0126] This embodiment is a further improvement of embodiment 3, and the repeated contents are not repeated. This embodiment provides an LED light source with a single-layer fluorescent film prepared by a film spraying method, and the LED light source in this embodiment is prepared by using the red fluorescent composition provided by embodiment 1 and the red fluorescent film provided by embodiment 2.

[0127] Preferably, in this embodiment, the wavelength range of the chip is 440nm to 475nm, and more preferably, the wavelength range of the blue light chip in the LED is 450nm to 460nm.

[0128] Preferably, only one layer of fluorescent film prepared by spraying film is arranged on the optical path of the chip.

[0129] Preferably, the fluorescent film arranged on the optical path of the chip contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 649 nm.

[0130] Preferably, in this embodiment, a layer of fluorescent film disposed on the optical path of the chip is a third fluorescent film.

[0131] Preferably, this embodiment provides three recipes, namely recipe ten, recipe eleven and recipe twelve.

[0132] Preferably, formula ten is:

[0133] When the wavelength range of the chip is 440nm to 475nm, especially 440nm to 460nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0134] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 40-87%.

[0135] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 25-50:20-45:10-35:5-15.

[0136] The thickness of the third fluorescent film is 0.001 mm to 0.01 mm.

[0137] Preferably, formula 11 is:

[0138] Under the condition that the wavelength range of the chip is 440nm to 460nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0139] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 50-80%.

[0140] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 28-45:25-40:15-30:5-10.

[0141] The thickness of the third fluorescent film is 0.002 mm to 0.006 mm.

[0142] Preferably, formula twelve is:

[0143] Under the condition that the wavelength range of the chip is 452nm to 455nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0144] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 60-75%.

[0145] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 30-40:27-35:17-25:5-10.

[0146] The thickness of the third fluorescent film is 0.002 mm to 0.003 mm.

[0147] See also Figure 5 In this embodiment, the LED light source of the single-layer fluorescent film prepared by the lamination method according to Recipe 10, Recipe 11 and Recipe 12 has a light-emitting band concentrated in the 630-700nm band with a gentle peak, which can be used in light-controlled blood sugar equipment and can achieve a significant light-controlled blood sugar effect.

[0148] Example 8

[0149] This embodiment is a further improvement of embodiment 3, and the repeated contents are not repeated. This embodiment provides an LED light source with a double-layer fluorescent film prepared by a dispensing method, and the LED light source in this embodiment is prepared by using the red fluorescent composition provided in embodiment 1 and the red fluorescent film provided in embodiment 2.

[0150] Preferably, in this embodiment, the wavelength range of the chip is 440nm to 475nm, and more preferably, the wavelength range of the blue light chip in the LED is 450nm to 460nm.

[0151] Preferably, a fluorescent film prepared by a dispensing method is arranged on the optical path of the chip, specifically, two layers of fluorescent film prepared by a secondary dispensing method.

[0152] Preferably, the phosphor powder formulas of the phosphor films dispensed twice are different.

[0153] The fluorescent film formed by the first dispensing contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 649nm.

[0154] The fluorescent film formed by the second dispensing contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 700nm.

[0155] Preferably, of the two layers of fluorescent film, the layer of fluorescent film with a lower excitation peak wavelength is close to the chip, and the layer of fluorescent film with a higher excitation peak wavelength is far away from the chip.

[0156] The blue light emitted by the chip first passes through the fluorescent film formed by the first dispensing, and then passes through the fluorescent film formed by the second dispensing.

[0157] Preferably, this embodiment provides three recipes, namely recipe thirteen, recipe fourteen and recipe fifteen.

[0158] Preferably, formula thirteen is:

[0159] When the wavelength range of the chip is 440nm to 475nm, especially 440nm to 460nm, the fluorescent film formed by the first dispensing is the first fluorescent film, and the fluorescent film formed by the second dispensing is the second fluorescent film.

[0160] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 40-87%.

[0161] The mass ratio of phosphor A to phosphor B in the first phosphor is 45-65:35-55.

[0162] The film thickness of the first fluorescent film is 0.06 mm to 0.60 mm.

[0163] After the second fluorescent powder in the second fluorescent film is mixed with silica gel, the concentration of the second fluorescent powder is 30-85%.

[0164] The mass ratio of phosphor C to phosphor D in the second phosphor is 70-90:10-30.

[0165] The film thickness of the second fluorescent film is 0.06 mm to 0.60 mm.

[0166] Preferably, formula fourteen is:

[0167] Under the condition that the wavelength range of the chip is 440nm to 460nm, the fluorescent film formed by the first dispensing is the first fluorescent film, and the fluorescent film formed by the second dispensing is the second fluorescent film.

[0168] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 50-80%.

[0169] The mass ratio of phosphor A to phosphor B in the first phosphor is 50-60:40-50.

[0170] The film thickness of the first fluorescent film is 0.06 mm to 0.60 mm.

[0171] After the second fluorescent powder in the second fluorescent film is mixed with silica gel, the concentration of the second fluorescent powder is 40-75%.

[0172] The mass ratio of phosphor C to phosphor D in the second phosphor is 80-90:10-20.

[0173] The film thickness of the second fluorescent film is 0.06 mm to 0.60 mm.

[0174] Preferably, formula fifteen is:

[0175] Under the condition that the wavelength range of the chip is 452nm-455nm, the fluorescent film formed by the first dispensing is the first fluorescent film, and the fluorescent film formed by the second dispensing is the second fluorescent film.

[0176] After the first fluorescent powder in the first fluorescent film is mixed with silica gel, the concentration of the first fluorescent powder is 60-75%.

[0177] The mass ratio of phosphor A to phosphor B in the first phosphor is 53-57:43-47.

[0178] The film thickness of the first fluorescent film is 0.06 mm to 0.60 mm.

[0179] After the second fluorescent powder in the second fluorescent film is mixed with silica gel, the concentration of the second fluorescent powder is 60-75%.

[0180] The mass ratio of phosphor C to phosphor D in the second phosphor is 85-90:10-15.

[0181] The film thickness of the second fluorescent film is 0.06 mm to 0.60 mm.

[0182] See also Figure 6 In this embodiment, the LED light source of the double-layer fluorescent film prepared by the dispensing method according to Formula 13, Formula 14 and Formula 15 has a light-emitting band concentrated in the 630-700nm band and a gentle peak. It can be used in light-controlled blood sugar equipment and can achieve a significant light-controlled blood sugar effect.

[0183] Example 9

[0184] This embodiment is a further improvement of embodiment 3, and the repeated contents are not repeated. This embodiment provides an LED light source with a single-layer fluorescent film prepared by a dispensing method, and the LED light source in this embodiment is prepared by using the red fluorescent composition provided in embodiment 1 and the red fluorescent film provided in embodiment 2.

[0185] Preferably, in this embodiment, the wavelength range of the chip is 440nm to 475nm, and more preferably, the wavelength range of the blue light chip in the LED is 450nm to 460nm.

[0186] Preferably, a fluorescent film prepared by a dispensing method is arranged on the optical path of the chip, and specifically, only one layer of fluorescent film prepared by a single dispensing method is arranged on the optical path of the chip.

[0187] Preferably, the fluorescent film prepared by a single dispensing method on the optical path of the chip contains one or more fluorescent powders that excite red light, and the peak wavelength of the excitation is greater than 649 nm.

[0188] Preferably, in this embodiment, the fluorescent film generated by a single dispensing method on the optical path of the chip is the third fluorescent film.

[0189] Preferably, this embodiment provides three formulations, namely formulation 16, formulation 17 and formulation 18.

[0190] Preferably, formula sixteen is:

[0191] When the wavelength range of the chip is 440nm to 475nm, especially 440nm to 460nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0192] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 40-87%.

[0193] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 25-50:20-45:10-35:5-15.

[0194] The thickness of the third fluorescent film is 0.20 mm to 0.60 mm.

[0195] Preferably, formula seventeen is:

[0196] Under the condition that the wavelength range of the chip is 440nm to 460nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0197] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 50-80%.

[0198] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the fourth phosphor is 28-45:25-40:15-30:5-10.

[0199] The thickness of the third fluorescent film is 0.20 mm to 0.60 mm.

[0200] Preferably, formula 18 is:

[0201] Under the condition that the wavelength range of the chip is 452nm to 455nm, the fluorescent film arranged on the optical path of the chip adopts the third fluorescent film.

[0202] After the third fluorescent powder in the third fluorescent film is mixed with silica gel, the concentration of the third fluorescent powder is 60-75%.

[0203] The mass ratio of phosphor A, phosphor B, phosphor C and phosphor D in the third phosphor is 30-40:27-35:17-25:5-10.

[0204] The thickness of the third fluorescent film is 0.20 mm to 0.60 mm.

[0205] See also Figure 7 In this embodiment, the LED light source of the single-layer fluorescent film prepared by the lamination method according to Recipe 16, Recipe 17 and Recipe 18 has a light-emitting band concentrated in the 630-700nm band with a gentle peak, which can be used in light-controlled blood sugar equipment and can achieve a significant light-controlled blood sugar effect.

[0206] 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 red fluorescent composition for photoreduction of blood sugar, characterized in that: include: a first phosphor, a second phosphor, and a third phosphor; Wherein, the first phosphor includes phosphor A and phosphor B; The second phosphor includes phosphor C and phosphor D; The third phosphor includes phosphor A, phosphor B, phosphor C and phosphor D; The first phosphor and the second phosphor are separately arranged and used in combination; the third phosphor is used independently.

2. A red light fluorescent composition for photoreducing blood sugar according to claim 1, characterized in that: The luminescent wavelength of the phosphor A is 660-670 nm; The luminescent wavelength of the phosphor B is 670-700 nm; The luminescent wavelength of the phosphor C is 700-720 nm; The luminescent wavelength of the phosphor D is 720-800 nm; When the first phosphor and the second phosphor are separately provided and used in combination, In the first phosphor, the mass ratio of the phosphor A to the phosphor B is 45-65:35-55; In the second phosphor, the mass ratio of the phosphor C to the phosphor D is 70-90:10-30; When the third phosphor is used independently, the mass ratio of the phosphor A, the phosphor B, the phosphor C and the phosphor D is 25-50:20-45:10-35:5-15.

3. A red fluorescent film for photoreduction of blood sugar, characterized in that: include: a first fluorescent film, a second fluorescent film and a third fluorescent film; The material of the first fluorescent film includes a first film-forming material and the first fluorescent powder contained in the red fluorescent composition according to claim 1 dispersed in the first film-forming material; The material of the second fluorescent film includes a second film-forming material and the second fluorescent powder contained in the red fluorescent composition according to claim 1 dispersed in the second film-forming material; The material of the third fluorescent film includes a third film-forming material and the third fluorescent powder contained in the red fluorescent composition according to claim 1 dispersed in the third film-forming material.

4. The red fluorescent film for photoreducing blood sugar according to claim 3, characterized in that: The concentration of the first phosphor in the first fluorescent film is 40-87%; The concentration of the second phosphor in the second fluorescent film is 30-87%; The concentration of the third phosphor in the third fluorescent film is 40-87%.

5. The red fluorescent film for photoreducing blood sugar according to claim 3, characterized in that: The first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by a lamination method; The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.06 to 0.60 mm.

6. The red fluorescent film for photoreducing blood sugar according to claim 3, characterized in that: The first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by a film spraying method; The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.001 to 0.01 mm.

7. The red fluorescent film for photoreducing blood sugar according to claim 3, characterized in that: The first fluorescent film, the second fluorescent film and the third fluorescent film are prepared by dispensing method; The film thickness of any one of the first fluorescent film, the second fluorescent film and the third fluorescent film is 0.06 to 0.60 mm.

8. An LED light source for photoreduction of blood sugar, characterized in that: It comprises a chip and a red fluorescent film arranged on the optical path of the chip; wherein the red fluorescent film is the red fluorescent film according to any one of claims 3 to 7.

9. The LED light source for photoreducing blood sugar according to claim 8, characterized in that: The light emission wavelength range of the chip is 440nm to 475nm.

10. The LED light source for photoreducing blood sugar according to claim 9, characterized in that: The arrangement of the red fluorescent film on the optical path of the chip includes the following two methods: The first fluorescent film and the second fluorescent film are arranged in combination; The third fluorescent film is provided separately; Wherein, when the first fluorescent film and the second fluorescent film are arranged on the optical path of the chip, the first fluorescent film is close to the chip, and the second fluorescent film is far away from the chip.

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