CN114859451A - Preparation method of blue light removing and interference removing lamp for classroom illumination - Google Patents
Preparation method of blue light removing and interference removing lamp for classroom illumination Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Physics & Mathematics (AREA)
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- Manufacturing & Machinery (AREA)
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- Optical Elements Other Than Lenses (AREA)
Abstract
The application relates to a preparation method of a blue light removing and interference removing lamp, in particular to a preparation method of a blue light removing and interference removing lamp for classroom lighting. The anti-dazzle diffusion film with the special microstructure formed by adding the quantum dot material with the proper particle size and content has the advantages of anti-dazzle, diffusion, harmful blue light inhibition and the like. Particularly, the height of a special microstructure and the particle size of a quantum dot material are controlled, the UGR of a sample is small, the intensity of harmful blue light is reduced more, and the anti-dazzle diffusion and blue light inhibition effects are better.
Description
Technical Field
The application relates to a preparation method of a blue light removing and interference removing lamp, in particular to a preparation method of a blue light removing and interference removing lamp for classroom lighting.
Background
It is well known that classroom lighting environment is also one of the important factors affecting the vision of children and teenagers. The survey shows that students in middle and primary schools in China stay in classrooms about 60% of the time every day, and when the lighting conditions of the classrooms are insufficient, the light is too dark, glare and blue light exist, and the color temperature is higher and lower, the dioptric system of eyes can be changed after the students stay in the environment for a long time, so that myopia is caused. Particularly, experiments of the national science foundation project classroom health illumination research based on the photo-biological effect show that the classroom illumination of the school directly influences the learning efficiency and the eyesight health of students more scientifically. Therefore, a comfortable classroom lighting environment is created, and the method has positive significance for preventing myopia of children and teenagers. At present, part of schools still use incandescent lamps as teaching illumination, the incandescent lamps generally have the problems of insufficient illumination, stroboflash, dazzling light, harmful blue light and the like, and the visual fatigue of students is easily caused, so that the shortsightedness is caused. At present, most of city classrooms are provided with multimedia projection teaching and blackboard writing. Under the actual condition, the light of front bank of lights has the illumination of considerable intensity to on blackboard or the projection screen, greatly reduced the contrast, let the student see clearly teaching information, consequently front bank of lights must be closed under the most circumstances when going to class, and this illuminance is far less than the illumination standard when causing the front bank of students to write again, causes near-sighted very easily.
At present, the illuminance, the color temperature and the stroboflash of most classrooms do not reach the standard of classroom illumination, and if the illumination of the classrooms does not reach the standard, the eyesight of students can be influenced to a great extent. The illuminance and illuminance uniformity of the desk are generally lower than the national standard (national standard: the illuminance of the desk must be higher than 300 lux, and the illuminance uniformity is higher than 0.7). If the students are in low illumination for a long time and the illumination received by different desk surfaces in the same classroom is not uniform, the visual fatigue is easily caused by the fact that some students are labored to read, write and read. Meanwhile, according to the national standard of GB/T38120-2019 technical requirements on optical health and optical safety application of blue light protective films, the requirements on the transmittance of blue light in each waveband are respectively carried out based on the health safety influence of blue light in different wavebands on human bodies. For example, in the 415-445 nm wavelength range, the light transmittance is less than or equal to 80%. More than 445 nm is more than 80%.
In the aspect of anti-dazzle, the anti-dazzle product of the prior common panel lamp is an extrusion molding prism crystal plate, and the structural precision and consistency are difficult to ensure in the high-temperature molding manufacturing process; and the steel roller die is easy to wear under the condition of continuous roller pressing at high temperature, the die needs to be repaired periodically, the investment cost of large-size hot-press molding equipment is high, and the hot-press production time of the single prismatic crystal plate is longer. In addition, the microstructure anti-glare film imprints the microstructure on the mold on the optical-grade transparent PET film through a UV transfer printing process, the material of the microstructure is optical-grade transparent UV glue, the precision and the fidelity of the microstructure are high, continuous production can be realized, and the efficiency is high. However, the lamp needs to integrate the anti-glare film and the diffusion film at the same time to achieve the anti-glare diffusion effect.
The method utilizes the principle that quantum dot materials have a blue light absorption effect and can be converted into long-wavelength illuminating light to supplement the wavelength through a photoluminescence principle, the quantum dot materials and UV glue are mixed, a special microstructure with anti-dazzle and light synergistic functions is formed on a flexible substrate through an imprinting method, and the special microstructure is finally compounded with a lamp, so that the effects of removing blue light, improving spectrum quality and preventing dazzle and increasing reflection are achieved. The problem of harm of blue light of classroom illumination to teenagers is solved fundamentally through the addition mode of specific size and specific quantum dots. Meanwhile, the anti-dazzle microstructure also changes the emergent route of light of the light source, so that the light rays which are obliquely emitted pass through the microstructure to become a part of the illumination, the interference of the light rays obliquely emitted by the light to the blackboard and the projection screen is greatly reduced, namely, the front row of lights do not need to be turned off in the teaching process, the illumination is ensured, the projection and blackboard-writing effects are not influenced, and the anti-dazzle diffusion effect can be achieved. The direction of the original oblique light is changed through the microstructure, the light becomes a part of the illumination, the harm becomes beneficial, the illumination is enhanced, and the useful light effect is improved. The quantum dot light conversion removes harmful blue light and converts the harmful blue light into more saturated complementary light color, so that higher-quality illumination is realized, and the better promotion effect on protecting the eyesight of students is achieved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a preparation method of a blue light removing and interference eliminating lamp for classroom lighting, so as to prepare a lamp which removes blue light, improves spectrum quality and has excellent anti-reflection and anti-dazzle diffusion effects.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method for removing blue light and interference in classroom illumination is characterized in that an anti-dazzle diffusion film is integrated with a lamp in a laminating or direct compounding mode; wherein, the anti-dazzle diffusion film is attached to or directly compounded on the outermost side of the lamp; the preparation method of the anti-dazzle diffusion film comprises the following steps of S1, preparing a micro-structure soft mold, S2, preparing a micro-structure imprinting mold through reverse molding, wherein the micro-structure at least comprises one of a micro-sphere structure, a columnar structure and a hexagonal structure, S3, quantum dots and UV glue are mixed and fully and uniformly stirred to obtain a mixed material, S4, utilizing the imprinting mold, imprinting the quantum dots and the UV glue mixed material on the surface of a transparent substrate by using an imprinting method, and copying the micro-structure on the imprinting mold on the transparent substrate through a UV imprinting process to form the anti-dazzle diffusion film based on the quantum dots; wherein, the UV glue in the microstructure material is optical transparent UV glue, and the height of the microstructure is 10-50 um.
The UV imprinting is a low temperature process. The UV imprinting does not cause abrasion to the mold, and the precision and the fidelity of the microstructure are extremely high. The membrane material can be directly applied to the panel light, can adopt the transparent plate to fix and laminate. In addition, the membrane is very flexible to prepare and can be customized according to requirements.
Preferably, the mass content of the quantum dots in the mixed material of the imprinted quantum dots and the UV glue of the anti-dazzle diffusion film is 0.1-10%, and further preferably 4-7%. When the mass content of the quantum dots in the mixed material is 4-7%, the UGR of the sample is smaller, and the glare feeling is also smaller.
Preferably, the anti-dazzle diffusion film comprises a flexible transparent substrate and a microstructure; the microstructure comprises UV glue and quantum dot materials.
Preferably, the antiglare diffusion film has both optical diffusion and antiglare effects.
Preferably, the anti-dazzle diffusion film has the functions of inhibiting blue light, reducing reflection, improving color rendering index and increasing illumination uniformity.
Preferably, the height of the microstructures is 20-30 μm. When the height of the microstructure is 24-28um, the UGR of the sample is smaller, the blue light intensity in the range of 415-445 nm is reduced more, the blue light intensity above 445 nm is reduced less, and the anti-dazzle diffusion and blue light inhibition effects are better.
Preferably, the micro-structured flexible mold is prepared by one of a photoresist hot reflow method, 3D printing, a droplet jetting method, a self-assembly method, and a hot stamping method.
Preferably, the size of the quantum dots is less than 15nm, more preferably 6-9nm, and the UGR of the sample is smaller, and the blue light intensity in the range of 415-445 nm is reduced more.
Preferably, the quantum dots comprise at least one of II-VI, IV-VI and III-V, I-VI compound single-structure or composite-structure quantum dots or a mixture of several kinds of the quantum dots.
Preferably, the surface ligand of the quantum dot comprises at least one of an acid ligand, a thiol ligand, and a phospholipid.
Preferably, the composite-structure quantum dot includes a core-shell-structure quantum dot, and the core constituting the core-shell-structure quantum dot includes at least one of CdSe, CdS, CdTe, CdSeTe, CdZnS, PbSe, ZnTe, CdSeS, PbS, PbTe, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InAs, InZnP, InGaP, InGaN, and CdZnSeS: the shell constituting the core-shell structure quantum dot contains at least one of ZnSe, ZnS, ZnSeS, ZnTe, CdSe and CdTe.
Preferably, the photoluminescence wavelength of one or more mixed quantum dots is 445-780 nm.
Preferably, the imprint mold is formed through a reverse mold process.
Preferably, the material of the imprint mold is one of a nickel plate and PDMS.
Further, the thickness of the transparent substrate is 0.1mm-3 mm; the transparent substrate includes: any one of PET, glass, PEN, PC, PI, PMMA, or PS.
The material of the embossed microstructure diffusion anti-dazzle film is transparent UV embossed glue, and can be one of thermoplastic polymer, thermosetting polymer and ultraviolet curing polymer.
The material with a special microstructure is obtained by doping quantum dots with proper particle size and content into UV glue, and an anti-dazzle diffusion film with a microstructure is formed on a transparent substrate by combining an imprinting method, so that the effects of blue light removal and anti-dazzle diffusion and anti-reflection are achieved.
The invention has the beneficial effects that: 1. the anti-dazzle diffusion film with a special microstructure is formed by adding quantum dot materials with proper particle sizes and content, and has the functions of anti-dazzle, diffusion, harmful blue light inhibition, illumination improvement and less reflection.
2. The particle size of the quantum dot material is smaller than 15nm, scattering cannot occur, light rays cannot be blocked, but the particle size needs to be controlled within a certain range, particularly 6-9nm, the UGR of the sample can be smaller, and the blue light intensity is reduced more in the range of 415-445 nm. When the height of the microstructure is 24-28um, the UGR of the sample is smaller, the blue light intensity in the range of 415-445 nm is reduced more, the blue light intensity above 445 nm is reduced less, and the anti-dazzle diffusion and blue light inhibition effects are better.
3. The anti-dazzle diffusion film is applied to classrooms of schools, and the damage of harmful blue light to eyes of students can be well relieved by introducing the quantum dots with specific wave bands. The anti-dazzle diffusion film can be of a single-layer film structure, the single-layer film structure can be manufactured in batches, the preparation is very flexible, and the anti-dazzle diffusion film can be customized according to requirements.
Drawings
Fig. 1 is a schematic view of a nickel plate imprint mold according to the present application.
Fig. 2 is a schematic view of an anti-glare diffusion film containing quantum dot material prepared by the present application.
FIG. 3 is a schematic view of the microstructure of the antiglare diffusion film of the present application.
Fig. 4 is a schematic cross-sectional view of the antiglare diffusion film of the present application.
FIG. 5 is a flow chart of the preparation of the anti-glare diffusion film based on quantum dots.
Detailed Description
The present invention will be described in further detail with reference to the following examples. The specific embodiments are to be considered as illustrative and not restrictive in character.
Embodiment 1, a method for preparing a blue light-removing and interference-removing lamp for classroom lighting, which is characterized in that an anti-dazzle diffusion film is integrated with a lamp in a laminating manner; wherein, the anti-dazzle diffusion film is attached to the outermost side of the lamp;
the preparation method of the anti-dazzle diffusion film comprises the following steps of preparing a micro-structure soft mold by S1, preparing a micro-structure stamping mold by an S2 reverse mold, cleaning a glass substrate, taking the glass substrate with the thickness of 0.7mm to remove impurities, oil stains and the like on the surface, spin-coating SU-8 photoresist on a substrate of the glass substrate by a spin coater, wherein the thickness of the photoresist is 30 mu m, then exposing the glass substrate on which the photoresist is spin-coated, matching a mask plate with a designed column shape, and preparing a column-shaped structure after development, wherein the diameter of a column-shaped photoresist array is 50 mu m, and the height of the column-shaped photoresist array is 30 mu m; preparing a microstructure nickel plate imprinting mold by reverse molding, carrying out silver mirror reaction on the substrate with the photoetching structure to form a conductive thin silver layer on the surface, then placing the silver layer in electroplating equipment for electroplating nickel, and electroplating the nickel with current densityBy stepwise increasing, the current density is 1A/m 2 Electroforming for 1h, depositing a compact metal layer on the surface, and regulating the current to 9A/m 2 Separating the metal mould and the photoresist plate after electroforming is finished to obtain a nanoimprint nickel plate; the microstructure is a columnar structure;
s3, mixing the quantum dots and the UV glue, and fully and uniformly stirring to obtain a mixed material; firstly, 2g of CdSe quantum dots of a toluene system are taken and mixed with 20g of UV glue (ultraviolet light curing glue), and the mixture ratio is 1: and 10, dispersing the quantum dot material with the particle size of 11nm by using a homogenizer, and fully and uniformly stirring to obtain the quantum dot UV photocuring glue mixed material.
Preparing a nickel plate imprinting mold, imprinting by using a PET (polyethylene terephthalate) base material with the thickness of 125 mu m, coating a layer of liquid quantum dot UV (ultraviolet) photocuring glue mixed material on the PET substrate, placing the nickel plate imprinting mold on the nickel plate imprinting mold, imprinting by using a roller film laminating machine and curing by using an ultraviolet lamp, wherein the curing energy and post-curing energy of the nano-imprinting quantum dot UV photocuring glue mixed material need to be matched with process parameters, and the ultraviolet curing energy is 20mJ/cm 2 The post-curing energy is 300mJ/cm 2 The adhesive force, hardness and stability of the quantum dot UV photocuring glue mixed material on the PET substrate reach better performances; copying the microstructure on the imprinting mold on a transparent substrate through a UV imprinting process to form a quantum dot-based single-layer anti-dazzle diffusion film, wherein the anti-dazzle diffusion film contains a quantum dot material; and attaching the anti-dazzle diffusion film to the outermost side of the lamp.
Through tests, the UGR of the sample is 11.8, the blue light intensity in the range of 415-445 nm is reduced by 93%, and the blue light intensity above 445 nm is reduced by no more than 12%.
Embodiment 2, a method for preparing a blue light-removing and interference-removing lamp for classroom lighting, which is characterized in that an anti-dazzle diffusion film is integrated with a lamp in a laminating manner; wherein, the anti-dazzle diffusion film is attached to the outermost side of the lamp;
the preparation method of the anti-dazzle diffusion film comprises the following steps of preparing a micro-structure soft mold by S1 and preparing a micro-structure stamping mold by S2 reverse mold,
the method comprises the steps of preparing a microsphere structure by using a photoresist hot-reflow method, coating AZ P4620 positive photoresist with the thickness of 25 microns on a glass substrate, wherein the thickness of the glass substrate is 0.7mm, exposing and developing by using a mask plate to obtain a cylindrical structure, heating on a hot plate to enable the cylindrical structure to reach the glass transition temperature of the photoresist, and finally forming a spherical structure under the action of surface tension to finally obtain a single-layer microsphere arrangement structure, wherein the diameter of the microsphere is 40 microns, and the height of the microsphere is 25 microns. A nickel plate imprint mold was prepared using the process parameters in example 1.
2g of CdS quantum dots in a chloroform system are taken and mixed with 30g of UV glue (ultraviolet curing glue), and the mixture ratio is 1: and 15, performing ball milling on the quantum dot material with the particle size of 8nm, wherein the ball milling rotation speed is 1000r/min, the ball milling time is 3 hours, and fully and uniformly stirring to obtain the quantum dot UV photocuring glue mixed material.
After the nickel plate imprinting mold is manufactured, a large amount of replication is realized by using an ultraviolet imprinting technology, and the imprinting glue adopted by ultraviolet imprinting is subjected to ultraviolet irradiation to crosslink precursor molecules of the UV imprinting glue. On the basis of the obtained nickel plate structure, firstly coating UV glue on one end of a nickel plate, then placing PET on the quantum dot UV light curing glue mixed material, and adjusting the pressure of an imprinting film covering machine to enable the film covering machine to imprint the nickel plate, the quantum dot UV light curing glue mixed material and the PET, so that the quantum dot UV light curing glue mixed material is evenly laid on a structure area, and is subjected to ultraviolet curing through a UV tunnel furnace, and then demoulding is performed, thereby realizing a structure on the PET, which is complementary with the template microstructure, and the ultraviolet curing energy is 30mJ/cm 2 Post-curing energy of 350mJ/cm 2 And obtaining the anti-dazzle diffusion film with the microstructure under the condition, and attaching the prepared anti-dazzle diffusion film to the outermost side of the lamp.
Through tests, the UGR of the sample is 10.3, the blue light intensity in the range of 415-445 nm is reduced by 96%, and the blue light intensity above 445 nm is reduced by no more than 9%.
Comparative example 1, a method for preparing a blue light-removing interference-removing lamp for classroom lighting, characterized in that an anti-glare diffusion film is integrated with a lamp by means of lamination; wherein, the anti-dazzle diffusion film is attached to the outermost side of the lamp;
preparation method of anti-dazzle diffusion filmPreparing a microstructure soft mold by S1 and preparing a microstructure impression mold by S2 reverse molding, cleaning a glass substrate, taking the glass substrate to be 0.7mm thick to remove impurities, oil stains and the like on the surface, spin-coating SU-8 photoresist on the substrate of the glass substrate by using a spin coater, wherein the thickness of the photoresist is 60 mu m, then exposing the glass substrate on which the photoresist is spin-coated, the mask is matched with a required design column, and a columnar structure is prepared after development, wherein the diameter of a column photoresist array is 80 mu m, and the height of the column photoresist array is 60 mu m; preparing a microstructure nickel plate imprinting mold by reverse molding, carrying out silver mirror reaction on a substrate with the photoetching structure to form a conductive thin silver layer on the surface, then placing the substrate in electroplating equipment for electroplating nickel, wherein the current density of the electroplating nickel is increased gradually, and the current density is 1A/m 2 Electroforming for 1h, depositing a compact metal layer on the surface, and regulating the current to 9A/m 2 Separating the metal mold and the photoresist plate after electroforming is finished to obtain a nano-imprinted nickel plate; the microstructure is a columnar structure;
s3, mixing the quantum dots and the UV glue, and fully and uniformly stirring to obtain a mixed material; firstly, 2g of CdSe quantum dots of a toluene system are taken and mixed with 20g of UV glue (ultraviolet light curing glue), and the mixture ratio is 1: and 10, dispersing the quantum dot material with the particle size of 23nm by using a homogenizer, and fully and uniformly stirring to obtain the quantum dot UV photocuring glue mixed material.
Preparing a nickel plate imprinting mold, imprinting by using a PET (polyethylene terephthalate) base material with the thickness of 125 mu m, coating a layer of liquid quantum dot UV (ultraviolet) photocuring glue mixed material on the PET substrate, placing the nickel plate imprinting mold on the nickel plate imprinting mold, imprinting by using a roller film laminating machine and curing by using an ultraviolet lamp, wherein the curing energy and post-curing energy of the nano-imprinting quantum dot UV photocuring glue mixed material need to be matched with process parameters, and the ultraviolet curing energy is 20mJ/cm 2 The post-curing energy is 300mJ/cm 2 The adhesive force, hardness and stability of the quantum dot UV photocuring glue mixed material on the PET substrate reach better performances; copying the microstructure on the imprinting mold on a transparent substrate through a UV imprinting process to form a quantum dot-based single-layer anti-dazzle diffusion film, wherein the anti-dazzle diffusion film contains a quantum dot material; will preventThe glare diffusion film is attached to the outermost side of the lamp.
Through tests, the UGR of the sample is 18.5, the blue light intensity in the range of 415-445 nm is reduced by 81%, and the blue light intensity above 445 nm is reduced by no more than 23%.
Therefore, the following steps are carried out: the anti-dazzle diffusion film with the special microstructure is formed by adding the quantum dot material with the proper particle size and content, and has the advantages of anti-dazzle, diffusion, harmful blue light inhibition and the like. Particularly, the height of a special microstructure and the particle size of a quantum dot material are controlled, so that the UGR of a sample is small, the intensity of harmful blue light is reduced more, and the anti-dazzle diffusion and blue light inhibition effects are better.
The foregoing examples are set forth to illustrate the present invention more clearly and should not be construed as limiting the scope of the present invention, which is intended to be limited thereby, and all such changes and modifications that can be made without departing from the scope of the present invention are intended to be within the scope of the present invention.
Claims (10)
1. A preparation method for removing blue light and interference in classroom illumination is characterized in that an anti-dazzle diffusion film is integrated with a lamp in a laminating or direct compounding mode; wherein, the anti-dazzle diffusion film is attached to or directly compounded on the outermost side of the lamp; the preparation method of the anti-dazzle diffusion film comprises the following steps of S1, preparing a micro-structure soft mold, S2, preparing a micro-structure imprinting mold through reverse molding, wherein the micro-structure at least comprises one of a micro-sphere structure, a columnar structure and a hexagonal structure, S3, quantum dots and UV glue are mixed and fully and uniformly stirred to obtain a mixed material, S4, utilizing the imprinting mold, imprinting the quantum dots and the UV glue mixed material on the surface of a transparent substrate by using an imprinting method, and copying the micro-structure on the imprinting mold on the transparent substrate through a UV imprinting process to form the anti-dazzle diffusion film based on the quantum dots; wherein, the UV glue in the microstructure material is optical transparent UV glue, and the height of the microstructure is 10-50 um; the quantum dot size is less than 15 nm.
2. The method for preparing the blue light removal and interference elimination lamp for classroom illumination as recited in claim 1, wherein the mass content of the quantum dots in the mixed material of the imprinted quantum dots and the UV glue of the anti-glare diffusion film is 0.1% -10%, the photoluminescence wavelength of one or more mixed quantum dots is 445-780 nm, and the material of the imprinting mold is one of nickel plate and PDMS.
3. The method for preparing a blue light removing and interference eliminating lamp for classroom illumination as recited in claim 1 or 2, wherein the mass content of the quantum dots in the mixed material of the embossed quantum dots and the UV glue of the anti-glare diffusion film is 4-7%.
4. The method for preparing a blue light removing and interference eliminating lamp for classroom illumination as defined in claim 1 or 2, wherein the anti-glare diffusion film comprises a flexible transparent substrate and a microstructure; the microstructure comprises UV glue and quantum dot materials; the thickness of the transparent substrate is 0.1mm-3 mm; the transparent substrate includes: any one of PET, glass, PEN, PC, PI, PMMA, or PS; the material of the embossed microstructure diffusion anti-dazzle film is transparent UV embossed glue, and can be one of thermoplastic polymer, thermosetting polymer and ultraviolet curing polymer.
5. The method for making a blue light removing and interference reducing light fixture for classroom lighting as described in claim 1 or 2, wherein the microstructures have a height of 20-30 μm.
6. The method of claim 1 or 2, wherein the microstructures have a height of 24-28 um.
7. The method for preparing a blue light removing and interference lamp for classroom illumination as defined in claim 1 or 2, wherein the micro-structured flexible mold is prepared by one of a photoresist reflow method, a 3D printing method, a droplet jetting method, a self-assembly method, and a hot stamping method.
8. The method of claim 1 or 2, wherein the quantum dot size is 6-9 nm.
9. The method for preparing a blue light removing and interference eliminating lamp for classroom illumination as defined in claim 1 or 2, wherein the quantum dots comprise at least one or a mixture of II-VI, IV-VI, III-V, I-VI compound single structure or composite structure quantum dots; the surface ligand of the quantum dot comprises at least one of acid ligand, thiol ligand and phospholipid.
10. The method of claim 9, wherein the composite quantum dots comprise core-shell quantum dots, and the core of the core-shell quantum dots comprises at least one of CdSe, CdS, CdTe, CdSeTe, CdZnS, PbSe, ZnTe, CdSeS, PbS, PbTe, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InAs, InZnP, InGaP, InGaN, and CdZnSeS: the shell of the core-shell structure quantum dot comprises at least one of ZnSe, ZnS, ZnSeS, ZnTe, CdSe and CdTe.
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