CN111333345B - Application of blue light prevention film, blue light prevention diaphragm and preparation method and application thereof - Google Patents
Application of blue light prevention film, blue light prevention diaphragm and preparation method and application thereof Download PDFInfo
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- CN111333345B CN111333345B CN202010155790.6A CN202010155790A CN111333345B CN 111333345 B CN111333345 B CN 111333345B CN 202010155790 A CN202010155790 A CN 202010155790A CN 111333345 B CN111333345 B CN 111333345B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/73—Anti-reflective coatings with specific characteristics
- C03C2217/732—Anti-reflective coatings with specific characteristics made of a single layer
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/116—Deposition methods from solutions or suspensions by spin-coating, centrifugation
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/365—Coating different sides of a glass substrate
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Abstract
The invention relates to the technical field of blue light prevention, in particular to a blue light prevention film and application thereof, a blue light prevention diaphragm and a preparation method and application thereof. The invention provides a blue light prevention film, which comprises monoclinic bismuth vanadate. The monoclinic bismuth vanadate is used as a material of the blue light prevention film, and the monoclinic bismuth vanadate is non-toxic and has good chemical stability, so that the blue light prevention film disclosed by the invention has strong stability and can meet the requirements of long service life and multi-environment application of display products. In addition, the monoclinic bismuth vanadate is used as a material of the blue light prevention film, so that most of harmful blue light can be effectively absorbed, most of beneficial blue light in other wavebands can be reserved, the high transmittance requirement of the rest wavebands of other visible light is ensured, the color balance of transmitted light is kept, and the secondary damage of reflected blue light is avoided. In addition, the thickness of the blue light prevention film is nano, so that the blue light prevention film is more suitable for the development of flexible and large-area display in the future, and has universality and convenience in display and illumination applications.
Description
Technical Field
The invention relates to the technical field of blue light prevention, in particular to a blue light prevention film and application thereof, a blue light prevention diaphragm and a preparation method and application thereof.
Background
At present, display products such as mobile phones, computers, panels, televisions and the like and lighting equipment increasingly go deep into the daily life of people. While blue light (400nm to 500nm) is essential in full color display and white light illumination as one of the three primary colors of light. The proper amount of blue light component is not only necessary for the color rendering of the light source, but also beneficial to regulating the biological rhythm of human beings. However, prolonged exposure to blue light may cause visual fatigue, affect melatonin secretion, affect sleep quality of a person, and may also induce the development of cancer, retinopathy, cataracts, age-related macular degeneration, and the like. Therefore, in the information age today, it is imperative to prevent harmful blue light and protect eyes.
In the aspect of blue light prevention films, two main blue light prevention modes are available at present, the first mode is to reflect blue light of a specific waveband by an optical thin film design method, but the preparation process of a reflection type blue light prevention film system is complex, difficult and high in cost, and the reflected blue light may have potential hazard of secondary damage to human eyes. The second type is to prepare a blue light-proof film by using a blue light absorption material, in the prior art, some organic materials or inorganic nanoparticles are doped into a polymer substrate to prepare a film to absorb blue light, the doped organic materials or polymer substrate can affect the service life of a product due to aging and the like, and a protective layer is mostly required to be additionally added to increase the service life of the product.
Disclosure of Invention
The invention aims to provide a blue light prevention film and application thereof, a blue light prevention diaphragm and a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a blue light prevention film, which comprises monoclinic bismuth vanadate.
Preferably, the thickness of the blue light prevention film is 3-100 nm.
The invention provides application of the blue light prevention film in the scheme in preparation of blue light prevention equipment.
The invention provides a blue-light-proof membrane, which comprises a first membrane layer, a glass cover plate layer and a second membrane layer which are sequentially stacked; the first film layer and the second film layer are both the blue light prevention film.
The invention provides a preparation method of the blue light prevention film, which comprises the following steps:
(1) adding Bi (NO)3)3·5H2O、NH4VO3Mixing citric acid and a solvent, and reacting to obtain a mixed feed liquid;
(2) mixing the mixed material liquid with monoethanolamine, and reacting to obtain a monoclinic bismuth vanadate precursor solution;
(3) coating the monoclinic bismuth vanadate precursor solution on the surface of one side of the glass cover plate, and forming a first film layer on the surface of one side of the glass cover plate after drying and annealing in sequence;
(4) coating the monoclinic bismuth vanadate precursor solution on the surface of the other side of the glass cover plate, and forming a second film layer on the surface of the other side of the glass cover plate after drying and annealing in sequence to obtain a blue light prevention film;
the step (3) and the step (4) have no time sequence.
Preferably, in step (1), Bi (NO) is used3)3·5H2O、NH4VO3The molar ratio of the citric acid to the citric acid is 1:1:4, the reaction temperature is 40-60 ℃, and the reaction time is 1-4 hours.
Preferably, the concentration of bismuth ions in the monoclinic bismuth vanadate precursor solution is 0.1-0.2 mol/L.
Preferably, in the step (2), the amount of the monoethanolamine is 5-10% of the volume of the solvent, the reaction temperature is 40-60 ℃, and the reaction time is 9-12 hours.
Preferably, in the step (3) and the step (4), the annealing temperature is 500-600 ℃ independently, and the annealing time is 5-30 min independently.
The invention provides an application of the blue light-proof membrane or the blue light-proof membrane prepared by the preparation method in the scheme in the preparation of lighting or display equipment.
The invention provides a blue light prevention film, which comprises monoclinic bismuth vanadate. The monoclinic bismuth vanadate is used as a material of the blue light prevention film, and the monoclinic bismuth vanadate is non-toxic and has good chemical stability, so that the blue light prevention film disclosed by the invention has strong stability, and can meet the requirements of long service life of a display product and multi-environment application.
In addition, the monoclinic bismuth vanadate is used as a material of the blue light prevention film, so that most of harmful blue light (such as 415 nm-455 nm) can be effectively absorbed, most of beneficial blue light (such as 460-500 nm) in other wavebands can be retained, the blue light is beneficial to maintaining the color balance of transmitted light and is beneficial to human bodies, the high transmittance requirement of the rest wavebands of other visible light is ensured, the color balance of the transmitted light is maintained, and the secondary damage of reflected blue light is avoided.
Furthermore, compared with the existing blue light prevention film which is often provided with the thickness of more than micron level, the application range is limited, the blue light prevention film provided by the invention is in nanometer level, is more suitable for the development of future flexible and large-area display, and has the universality and convenience in display and illumination application.
The invention provides a blue light prevention film, wherein the two sides of a glass cover plate are respectively provided with a blue light prevention film, so that on one hand, the blue light cut-off rate is improved, and the reduction of the transmittance of other visible light wave bands caused by the mutual influence among film layers is reduced, and the blue light prevention film can be used for preparing display or lighting equipment.
The invention provides a preparation method of the anti-blue-light membrane, the monoclinic bismuth vanadate film is prepared by a solution method to be used as the anti-blue-light membrane layer, the process is simple, the large-area preparation can be realized, and the cost is low.
Drawings
Fig. 1 is a schematic structural view of a blue light-proof film prepared in example 1.
Detailed Description
The invention provides a blue light prevention film, which comprises monoclinic bismuth vanadate. In the invention, the thickness of the blue light prevention film is preferably 3-100 nm, more preferably 10-80 nm, further preferably 20-70 nm, and most preferably 30-60 nm.
The invention provides application of the blue light prevention film in preparation of blue light prevention equipment. The invention has no special requirement on the blue light prevention device, and the blue light prevention device can be any device which is well known in the field and is required to have the blue light prevention function, and can be particularly but not limited to display devices, lighting devices, blue light prevention glasses, mobile phone films and sun umbrellas. The blue light prevention film has higher cut-off rate on blue light, and has good blue light prevention effect when being applied to blue light prevention equipment.
The invention provides a blue-light-proof membrane, which comprises a first membrane layer, a glass cover plate layer and a second membrane layer which are sequentially stacked; the first film layer and the second film layer are both the blue light prevention film. In the invention, the thicknesses of the first film layer and the second film layer are independently preferably 3-100 nm, more preferably 10-80 nm, even more preferably 20-70 nm, and most preferably 30-60 nm.
In the present invention, the glass cover plate is preferably a glass cover plate for a light-emitting panel of a display product. The thickness of the glass cover plate is not required in the invention, and the glass cover plate with the thickness well known in the field can be used. According to the invention, the two sides of the glass cover plate are respectively provided with the blue light prevention films, so that on one hand, the blue light cut-off rate is improved, and the reduction of the transmittance of other visible light wave bands caused by the mutual influence among the film layers is reduced, and the glass cover plate can be used for preparing display or lighting equipment.
The invention provides a preparation method of the blue light prevention film, which comprises the following steps:
(1) adding Bi (NO)3)3·5H2O、NH4VO3Mixing citric acid and a solvent, and reacting to obtain a mixed feed liquid;
(2) mixing the mixed material liquid with monoethanolamine, and reacting to obtain a monoclinic bismuth vanadate precursor solution;
(3) coating the monoclinic bismuth vanadate precursor solution on the surface of one side of the glass cover plate, and forming a first film layer on the surface of one side of the glass cover plate after drying and annealing in sequence;
(4) coating the monoclinic bismuth vanadate precursor solution on the surface of the other side of the glass cover plate, and forming a second film layer on the surface of the other side of the glass cover plate after drying and annealing in sequence to obtain a blue light prevention film;
the step (3) and the step (4) have no time sequence.
In the present invention, the starting materials used are all commercially available products well known in the art, unless otherwise specified.
The invention mixes Bi (NO)3)3·5H2O、NH4VO3Mixing citric acid and a solvent, and reacting to obtain a mixed feed liquid.
In the invention, the solvent is preferably a mixture of acetic acid and N, N-Dimethylformamide (DMF), and the acetic acid accounts for 5-30% of the volume of the solvent. The invention has no special requirements on the dosage of the solvent, and can ensure that the reaction is smoothly carried out. In the present invention, the Bi (NO) is3)3·5H2O、NH4VO3And citric acid are preferably in a molar ratio of 1:1: 4. The present invention does not require any particular mixing means, and mixing means well known in the art may be used. In the invention, the reaction temperature is preferably 40-60 ℃, and more preferably 45-55 ℃; the time is preferably 1 to 4 hours, and more preferably 2 hours. The reaction according to the invention is preferably carried out under stirring, the stirring rate according to the invention being subject to no particular requirements and being known in the art. The mixed feed liquid of the invention presents a sky shapeBlue in color.
After the mixed material liquid is obtained, the mixed material liquid is mixed with monoethanolamine, and a monoclinic bismuth vanadate precursor solution is obtained after reaction.
In the invention, the amount of the monoethanolamine is preferably 5-10% of the volume of the solvent. In the present invention, the mixing mode is preferably to drop monoethanolamine into the mixed solution. The invention adopts a dripping mode to facilitate more complete reaction. In the invention, the reaction temperature is preferably 40-60 ℃, more preferably 40 ℃, and the reaction time is preferably 9-12 h, more preferably 10-11 h. The reaction time of the invention is counted from the time when the monoethanolamine is completely added. The reaction according to the invention is preferably carried out under stirring, the stirring rate according to the invention being subject to no particular requirements and being known in the art. In the invention, the concentration of bismuth ions in the monoclinic bismuth vanadate precursor solution is preferably 0.1-0.2 mol/L, the concentration of bismuth ions in the solution is preferably controlled by adjusting the dosage of the solvent, and when the concentration of bismuth ions in the solution after reaction is higher than the above concentration, the solvent is preferably continuously added to dilute the concentration of bismuth ions to the above range, and then the solution is stirred for 1 hour at 30-50 ℃. When dilution is needed, the proportion of acetic acid and N, N-Dimethylformamide (DMF) in a solvent used for dilution can be the same as or different from the proportion of acetic acid and N, N-Dimethylformamide (DMF) in the solvent used for preparing the mixed feed liquid, and when the dilution is not performed, the requirement that the acetic acid accounts for 5-30% of the volume of the solvent is still met. In the invention, the preferable amount of the monoethanolamine is 5-10% of the solvent volume, and the solvent also comprises the amount of the solvent for subsequent dilution.
After the reaction is completed, the invention preferably further comprises filtering the system obtained by the reaction by using a filter head with the diameter of 0.22 μm to filter out large-particle substances, so as to obtain a monoclinic bismuth vanadate precursor solution.
After obtaining the monoclinic bismuth vanadate precursor solution, the monoclinic bismuth vanadate precursor solution is coated on the surface of one side of the glass cover plate, and a first film layer is formed on the surface of one side of the glass cover plate after drying and annealing in sequence.
Before the coating, the method preferably further comprises the steps of cleaning the glass cover plate by sequentially using cleaning powder, acetone, absolute ethyl alcohol and deionized water, and drying by using nitrogen. In the present invention, the coating mode is preferably spin coating, the rotation speed of the spin coating is preferably 3000r/min, and the time of the spin coating is preferably 30 s. After the coating is finished, the glass cover plate coated with the wet film is sequentially dried and annealed. In the invention, the drying temperature is preferably 150 ℃, and the drying time is preferably 15-30 min. The solvent in the monoclinic bismuth vanadate precursor solution is removed by drying. In the invention, the annealing temperature is preferably 500-600 ℃, the time is preferably 5-30 min, more preferably 10min, and the annealing is preferably carried out in an air atmosphere. And generating monoclinic bismuth vanadate crystals in the annealing process. After the annealing is completed, the temperature of the glass cover plate is naturally reduced to room temperature along with the furnace, and then the glass cover plate coated with the thin film is taken out. When the thickness of the formed film layer does not meet the thickness requirement of the first film layer, the invention preferably repeats the steps of spin coating, drying and annealing until the first film layer with the target thickness is obtained.
After the first film layer is formed, the monoclinic bismuth vanadate precursor solution is coated on the surface of the other side of the glass cover plate, and a second film layer is formed on the surface of the other side of the glass cover plate after drying and annealing are carried out in sequence, so that the blue-light-proof film is obtained. In the present invention, the preparation conditions of the second film layer may be selected from the preparation conditions of the first film layer, and are not described herein again.
The preparation sequence of the first film layer and the second film layer is not required, namely the first film layer can be prepared firstly, and the second film layer can be prepared firstly.
The monoclinic bismuth vanadate film prepared by the solution method is used as the blue light prevention film layer, the process is simple, the large-area preparation can be realized, and the cost is low.
The invention provides an application of the blue light-proof membrane or the blue light-proof membrane prepared by the preparation method in the scheme in the preparation of lighting or display equipment.
The blue light-proof film and its application, the blue light-proof film for display or illumination and its preparation method and application are described in detail below with reference to the examples, but they should not be construed as limiting the scope of the present invention.
Example 1
As shown in fig. 1, the blue light-proof film of the present embodiment includes a glass cover plate 1, a first film layer 2 and a second film layer 3, wherein the first film layer 2 and the second film layer 3 are respectively deposited on two sides of the glass cover plate 1.
The preparation method comprises the following steps:
adding Bi (NO)3)3·5H2O、NH4VO3Adding citric acid and DMF in a molar ratio of 1:1:4 into a mixed solvent of acetic acid and DMF (wherein the volume ratio of acetic acid to DMF is 20:80), and stirring at 40 ℃ for reaction for 2 hours to obtain a sky blue mixed feed liquid;
adding monoethanolamine into the mixed solution dropwise and slowly, stirring and reacting for 12h at 40 ℃ until the color of the solution is changed into dark blue-green, supplementing a mixed solvent of acetic acid and DMF (wherein, for the first membrane layer 2, the volume ratio of the acetic acid to the DMF in the supplemented mixed solvent is 10: 90; and for the second membrane layer 3, the volume ratio of the acetic acid to the DMF in the supplemented mixed solvent is 20:80) into the solution, adjusting the molar concentration of bismuth ions to 0.15mol/L, stirring for 2h at 40 ℃, and then filtering by using a filter tip with the diameter of 0.22 mu m to obtain a precursor solution of monoclinic bismuth vanadate;
before coating, the glass cover plate 1 is sequentially cleaned by detergent powder, acetone, absolute ethyl alcohol and deionized water, and is dried by nitrogen when in use;
a glass cover plate 1 (thickness 0.7mm) was placed on the turntable of a spin coater, and then the prepared precursor solution was dropped on the cover plate surface and spin-coated at a rate of 3000r/min for 30 seconds. Then, the coated glass coated with the wet film is placed at a preheating temperature of 150 ℃ for drying for 20 min. And finally, annealing for 10min at 500 ℃ in a muffle furnace, naturally cooling the muffle furnace to room temperature, taking out, cooling to room temperature, performing next layer of spin coating, and repeating the steps of spin coating, drying and annealing after each layer of coating. The preparation methods of the films on the two sides of the glass cover plate are the same, and the thicknesses of the films on the two sides are respectively 37.7nm and 50.6 nm.
Structural and performance characterization
1. XRD characterization was performed on the first and second films of the membrane prepared in example 1, respectively, and the results showed that both the first and second films were monoclinic bismuth vanadate.
2. The test of the blue-light-proof film prepared in example 1 by using an ultraviolet-visible spectrophotometer shows that the average cut-off rate of the blue-light-proof film prepared in the invention to 415-455 nm short-wave blue light is 65.04%, which is 10% higher than that of a single-sided film (the preparation conditions are the same as those of example 1, except that a first film layer is coated first and then a second film layer is coated to one side of a glass cover plate), and meanwhile, the transmittance is kept to be more than 85% in the wavelength range of 500-800 nm, the average transmittance is 85.27%, which is 2.31% higher than that of a single-sided film (the average transmittance of the single-sided film is 82.96%).
3. The high-temperature high-humidity test box is used for carrying out a damp-heat test (85 ℃, 85% RH) on the blue-light-proof membrane prepared in the example 1, and the result shows that the transmittance of the blue-light-proof membrane is almost kept unchanged after the blue-light-proof membrane is aged for 15 days, so that the blue-light-proof membrane has excellent damp-heat stability and can meet the requirements of displaying the long service life of a product and multi-environment application.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The application of the blue light prevention film in preparing blue light prevention equipment; the component of the blue light prevention film is monoclinic bismuth vanadate.
2. The use according to claim 1, wherein the blue-blocking film has a thickness of 3 to 100 nm.
3. The blue-light-proof film is characterized by comprising a first film layer, a glass cover plate layer and a second film layer which are sequentially stacked; the first film layer and the second film layer are both blue light prevention films; the component of the blue light prevention film is monoclinic bismuth vanadate.
4. The blue-light preventing film according to claim 3, wherein the first film layer and the second film layer independently have a thickness of 3 to 100 nm.
5. The method for preparing the blue-light-proof membrane of claim 3 or 4, which is characterized by comprising the following steps:
(1) adding Bi (NO)3)3·5H2O、NH4VO3Mixing citric acid and a solvent, and reacting to obtain a mixed feed liquid;
(2) mixing the mixed material liquid with monoethanolamine, and reacting to obtain a monoclinic bismuth vanadate precursor solution;
(3) coating the monoclinic bismuth vanadate precursor solution on the surface of one side of the glass cover plate, and forming a first film layer on the surface of one side of the glass cover plate after drying and annealing in sequence;
(4) coating the monoclinic bismuth vanadate precursor solution on the surface of the other side of the glass cover plate, and forming a second film layer on the surface of the other side of the glass cover plate after drying and annealing in sequence to obtain a blue light prevention film;
the step (3) and the step (4) have no time sequence.
6. The method according to claim 5, wherein in the step (1), Bi (NO) is used3)3·5H2O、NH4VO3The molar ratio of the citric acid to the citric acid is 1:1:4, the reaction temperature is 40-60 ℃, and the reaction time is 1-4 hours.
7. The preparation method according to claim 5, wherein the concentration of bismuth ions in the monoclinic bismuth vanadate precursor solution is 0.1-0.2 mol/L.
8. The preparation method according to claim 7, wherein in the step (2), the amount of the monoethanolamine is 5-10% of the volume of the solvent, the reaction temperature is 40-60 ℃, and the reaction time is 9-12 h.
9. The method according to claim 5, wherein in the step (3) and the step (4), the annealing temperature is 500 to 600 ℃ independently, and the annealing time is 5 to 30min independently.
10. Use of the blue light-proof film sheet of claim 3 or 4 or the blue light-proof film sheet prepared by the preparation method of any one of claims 5 to 9 in the preparation of lighting or display equipment.
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| CN1328752C (en) * | 2001-09-13 | 2007-07-25 | 皇家飞利浦电子股份有限公司 | Electric lamp, lamp vessel provided with a light-absorbing coating as well as a method of preparing a light-absorbing coating |
| JP2008112695A (en) * | 2006-10-31 | 2008-05-15 | Toshiba Lighting & Technology Corp | High-pressure discharge lamp and lighting fixture |
| JP2010275123A (en) * | 2009-05-26 | 2010-12-09 | Panasonic Electric Works Co Ltd | Optical filter and lighting fixture using the same |
| CN102949991B (en) * | 2012-11-09 | 2014-10-29 | 陕西科技大学 | Method for preparing BiVO4 film with photocatalysis performance by using sol-gel method |
| CN103107242B (en) * | 2013-01-29 | 2015-12-02 | 上海交通大学 | Prepare the method for pucherite solar cell on the glass substrate |
| TWM470284U (en) * | 2013-09-30 | 2014-01-11 | Sintronic Technology Inc | Light source module and electronic device |
| TWM470368U (en) * | 2013-09-30 | 2014-01-11 | Sintronic Technology Inc | Film structure |
| CN105679880A (en) * | 2016-01-19 | 2016-06-15 | 新疆中兴能源有限公司 | Simple preparation method for large-area pucherite film for photolysis of water |
| CN108761840B (en) * | 2018-06-04 | 2019-11-08 | 青岛高新区尚达医药研究所 | Anti-blue light glasses substrate and anti-blue light anti-fatigue glasses |
| CN109608861B (en) * | 2019-01-18 | 2021-11-09 | 南京华生皓光电科技有限公司 | Selective filtering material capable of completely filtering blue and violet light |
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