CN112946987B - Preparation method of high-gain laser anti-light screen based on Fresnel lens - Google Patents
Preparation method of high-gain laser anti-light screen based on Fresnel lens Download PDFInfo
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- CN112946987B CN112946987B CN201911263396.8A CN201911263396A CN112946987B CN 112946987 B CN112946987 B CN 112946987B CN 201911263396 A CN201911263396 A CN 201911263396A CN 112946987 B CN112946987 B CN 112946987B
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The invention discloses a method for preparing a high-gain laser anti-light screen based on a Fresnel lens, which comprises the following steps: (1) preparing an AG membrane layer; (2) preparing a contrast film, and attaching the contrast film to the AG film; (3) preparing a Fresnel lens; (4) manufacturing a cylindrical lens layer on the Fresnel lens layer by a water coating transfer printing method; (5) plating a metal reflecting layer on the cylindrical mirror layer; (6) preparing a protective film; (7) attaching a protective film layer on the metal reflecting layer; (8) preparing an adhesive film and attaching the adhesive film to the metal reflecting layer; (9) and adhering the honeycomb aluminum plate to the adhesive film. The invention has better screen display effect, high gain, wide visual angle and high contrast. The display effect of the screen matched with a commercially available 2000-element laser machine is equivalent to the effect of other screens matched with laser machines above 20000 elements, and the cost can be saved by 70% for users. Meanwhile, huge development space is brought to the laser screen market.
Description
Technical Field
The invention belongs to the technical field of optical display, and particularly relates to a method for preparing a high-gain laser anti-light screen based on a Fresnel lens.
Background
The display effect of the existing laser light-resistant screen is not good, for example, (1) in the existing laser light-resistant screen, an AG film layer is obtained by UV glue through mold photocuring and imprinting, so that the image can have dense and hemp crystal points during display; (2) the contrast film layer mixes the light diffusant and the color together, so that the color is not pure, and the contrast is influenced; the visual angle is not large, and the light rays are scattered forward; (3) the surface of the Fresnel lens cannot be provided with a cylindrical mirror, so that the gain of the laser light-resistant screen is not high.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a method for preparing a high-gain laser anti-light screen based on a Fresnel lens.
The invention provides a method for preparing a high-gain laser anti-light screen based on a Fresnel lens, which comprises the following steps:
(1) preparing AG film slurry, coating the AG film slurry on the surface of a PET optical pre-coating film, and sequentially drying and curing by ultraviolet light to obtain an AG film;
(2) preparing contrast film slurry, coating the contrast film slurry on the surface of an optical PET optical pre-coating film, baking to obtain a contrast film, and attaching the contrast film to an AG film;
(3) preparing Fresnel lens slurry, coating the Fresnel lens slurry on the surface of a contrast film layer, and obtaining a Fresnel lens layer through ultraviolet irradiation;
(4) manufacturing a cylindrical lens layer on the Fresnel lens layer by a water coating transfer printing method;
the cylindrical mirror layer is a plurality of parallel lines with the pitch of 0.1-0.16 mm and the thickness of 0.06-0.1 mm, the cross section of each line is approximately semicircular, and the diameter of each line is about 0.06-0.1 mm;
(5) plating a metal reflecting layer on the cylindrical mirror layer;
(6) preparing protective film slurry, coating the protective film slurry on the surface of a PET optical pre-coating film, and sequentially drying and curing by ultraviolet light to obtain a protective film;
(7) attaching a protective film layer on the metal reflecting layer;
(8) preparing adhesive slurry, coating the adhesive slurry on the surface of the PET optical pre-coating film, drying to obtain an adhesive film, and attaching the adhesive film to the combined film layer obtained in the step (7);
(9) and adhering the honeycomb aluminum plate to the adhesive film.
Preferably, the AG film slurry comprises UV hardening liquid, a sand surface agent and a dispersing agent, wherein the dosage of the sand surface agent and the dispersing agent is respectively 5-8% and 0.5-1% of the weight of the UV hardening liquid;
the sand surface agent is silicon dioxide sand surface agent with the particle size of 4-8 mu m, and the dispersing agent is methyl amyl alcohol dispersing agent.
Preferably, the AG film also comprises black nano color paste, and the using amount of the black nano color paste is 6-9% of the weight of the UV hardening liquid.
Preferably, the contrast film slurry comprises organic silicon pressure-sensitive adhesive with solid content of 45-65%, nanoscale blue-phase transparent black paste, chloroplatinic acid, a dispersing agent, a leveling agent and a defoaming agent; wherein, the dosage of the nano blue phase transparent black paste, the chloroplatinic acid, the dispersant, the flatting agent and the defoamer is 0.3-0.5%, 0.1-0.2%, 0.2-0.4%, 0.01-0.15% and 0.2-0.3% of the organic silicon pressure sensitive adhesive respectively.
The dispersing agent is an acrylamide dispersing agent, the flatting agent is a polyether organic silicon flatting agent, and the defoaming agent is an organic silicon defoaming agent.
Preferably, the Fresnel lens slurry comprises a UV light-cured adhesive, a dispersing agent and a defoaming agent, wherein the dispersing agent and the defoaming agent account for 0.05-0.2% and 0.35-0.5% of the UV light-cured adhesive in mass;
the UV light curing adhesive is polyester acrylate curing adhesive, the dispersing agent is methyl amyl alcohol dispersing agent, and the defoaming agent is organic silicon defoaming agent.
Preferably, the step of manufacturing the cylindrical lens layer on the fresnel lens layer by using a water coating transfer method comprises the following steps:
printing lines, namely a cylindrical mirror, on the surface of the polyvinyl alcohol film by using high-transparency water transfer printing ink;
placing the printed cylindrical lens on the water surface, and spraying an activating agent on the cylindrical lens to restore the ink of the printed lines;
the working surface of the prepared Fresnel lens is immersed in water, and the lines are transferred to the surface of the Fresnel lens by water pressure.
Preferably, the method for manufacturing the cylindrical lens layer on the fresnel lens layer by using a water coating transfer printing method comprises the following steps:
printing lines, namely a cylindrical mirror, on the surface of the transfer film by using high-transparency heat transfer printing ink; drying the film through a drying tunnel of 50 ℃, synchronously feeding the film and the prepared Fresnel lens into a double-roller film laminating machine, and transferring the cylindrical mirror structure on the transfer film on the surface of the Fresnel lens through heating.
Preferably, the reflective layer is an aluminum-plated reflective layer.
Preferably, the protective film paste comprises acrylic pressure-sensitive adhesive and isocyanate, wherein the mass of the isocyanate is 0.2-0.4% of that of the acrylic pressure-sensitive adhesive.
Preferably, the adhesive paste is an acrylic pressure sensitive adhesive.
The high-gain laser anti-light screen sequentially comprises an AG film layer, a contrast film layer, a Fresnel lens layer, a cylindrical lens layer, a reflecting layer, a protective film layer, an adhesive layer and a honeycomb aluminum plate layer; the cylindrical lens layer is transferred and printed on the working surface of the Fresnel lens layer by a water coating transfer printing method, the cylindrical lens layer is a plurality of parallel lines with the pitch of 0.1-0.16 mm and the thickness of 0.06-0.1 mm, the cross section of each line is approximately semicircular, and the diameter of each line is about 0.06-0.1 mm.
In the present invention, the AG film mainly functions as follows: (1) the high surface haze can reduce the reflection of projection light; (2) as a protective layer, its high surface hardness can resist scratches; (3) the incidence rate of light is improved. The contrast film layer mainly has the following functions: (1) improving the light resistance of the screen; (2) the real color of the screen display image is provided, and the contrast of the image color is bright. The Fresnel lens layer mainly has the following functions: (1) interference light from the left, right and upper directions enters the screen and is absorbed, so that the light-resistant effect can be achieved; (2) incident light of the laser machine passes through the Fresnel lens layer, and reflected imaging light is parallel light; (3) projection light in the left direction, the right direction and the upper direction of the screen is received to the central audience position through the Fresnel lens structure, so that the screen is brighter to watch in the middle position. The cylindrical mirror layer with the reflecting layer mainly has the following functions: when projection light loops through AG rete, contrast rete, fresnel lens layer, cylindrical mirror layer, then meets the reflection stratum, with projection light directional reflection, visual angle about reflection light opens through cylindrical mirror layer again, sees through fresnel lens layer and becomes the parallel light, loops through contrast rete, AG rete formation of image.
Compared with the prior art, the invention has the following advantages and beneficial effects:
compare with the anti-light screen of laser on the existing market, this embodiment screen display effect is better, has high gain, wide visual angle, high contrast. The display effect of the screen matched with a commercially available 2000-element laser machine is equivalent to the effect of other screens matched with laser machines above 20000 elements, and the cost can be saved by 70% for users. Meanwhile, huge development space is brought to the laser screen market.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following examples of the present invention will be provided. It will be apparent to those of ordinary skill in the art that other embodiments may be made in accordance with these examples without the exercise of inventive faculty. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
Examples
This example will provide a method of preparation.
(1) Preparing an AG film layer:
in this example, the formulation of the AG film layer is: comprises UV hardening liquid, a sand surface agent and a dispersing agent; wherein, the dosage of the sand surface agent and the dispersant is 5 to 8 percent and 0.5 to 1 percent of the weight of the UV hardening liquid respectively. The sand finishing agent is silicon dioxide sand finishing agent with the particle size of 4-8 mu m. The dispersant is methyl amyl alcohol dispersant. The preferable formula is as follows: comprises UV hardening liquid, a sand surface agent, a dispersing agent and black nanometer color paste; wherein the dosage of the sand surface agent, the dispersant and the black nano color paste is respectively 5 to 8 percent, 0.5 to 1 percent and 6 to 9 percent of the weight of the UV hardening liquid. The addition of the black nanometer color paste enables the surface color of the AG film layer to be transparent black, the black light absorption can improve the anti-interference light function of the screen, and even under the condition of stronger ambient light ratio, the screen display image is still clear, so the optimal AG film layer has better anti-interference light performance.
The preparation process of the AG film layer comprises the following steps:
adding the UV hardening liquid into a stirrer, adding the sand surface agent, the dispersing agent and the black nano color paste into the UV hardening liquid according to the preparation direction, then adding ethyl acetate or industrial toluene to dilute until the solid content is 24-26%, and stirring and vacuumizing by a high-speed dispersion machine. Pressurizing the mixture obtained by stirring by an air compressor to 0.3-0.4 mpa, putting the mixture into a coating cloth trough, uniformly coating a layer of wet glue with the thickness of 20um on the surface of the PET optical pre-coating film with the thickness of 125 mu m by adopting micro-concave coating equipment, drying the wet glue out of an oven by a temperature-segmented oven at 40 ℃, 60 ℃, 80 ℃, 100 ℃ and 120 ℃, and then carrying out photocuring by ultraviolet rays with the wavelength of 365-385 nm to obtain the AG film.
And performing performance detection on the AG film, and observing the uniform matte surface of the AG film by eye, wherein the AG film has no visible imprint, the dry glue thickness of the coating is 5um, the hardness is 3H, the haze is 18-20%, the light transmittance is 90-92%, and the film thickness is 130 um. The haze and the light transmittance are detected by an optical light transmission haze testing instrument.
(2) Preparing a contrast film layer:
in this example, the formulation of the contrast film layer is: the adhesive comprises organic silicon pressure-sensitive adhesive with solid content of 45-65%, nanoscale blue-phase transparent black paste, chloroplatinic acid, a dispersing agent, a flatting agent and a defoaming agent; wherein the dosage of the nano blue phase transparent black paste, the chloroplatinic acid, the dispersant, the flatting agent and the defoaming agent is respectively 0.3 to 0.5 percent, 0.1 to 0.2 percent, 0.2 to 0.4 percent, 0.01 to 0.15 percent and 0.2 to 0.3 percent of the weight of the organic silicon pressure-sensitive adhesive. The organic silicon pressure-sensitive adhesive adopts morning flying CF-8152 organic silicon pressure-sensitive adhesive, the dispersing agent is acrylamide dispersing agent, the leveling agent adopts polyether organic silicon leveling agent, and the defoaming agent adopts organic silicon defoaming agent.
The preparation process of the contrast film layer comprises the following steps:
adding the organic silicon pressure-sensitive adhesive into a stirring container, and adding the nano blue-phase transparent black paste, chloroplatinic acid, a dispersing agent, a leveling agent and a defoaming agent according to the formula. And vacuumizing the stirring container, and stirring at the rotating speed of 1200 rpm for 20 minutes to obtain the color film slurry. And (3) pumping the slurry into comma coating equipment, and uniformly coating the color film slurry on the surface of the optical PET precoating film with the thickness of 100 mu m by using a comma scraper to form wet glue with the thickness of 200 nm. The optical PET precoating film coated with the wet glue is baked by a temperature segmentation oven with the length of 32 meters, and the segmentation temperature is 40 degrees, 60 degrees, 80 degrees, 100 degrees and 120 degrees in sequence. And drying to obtain the color film with the thickness of 100 um.
Testing the light transmittance and the haze of the color film by using a WGT-S light transmittance/haze tester, wherein the light transmittance and the haze are 67-70% and 18-20% respectively; the light transmittance of 67-70% can keep the gain of the screen within the range of 1.5 under the condition of ensuring the contrast; the low haze of 18% -20% is beneficial to improving the incidence rate of the light rays of the projector and reducing the reflectivity of the light rays of the projector.
And placing the AG film layer and the contrast film layer in a laminating device, laminating the AG film layer and the contrast film layer to obtain a film layer combination formed by tightly laminating the AG film layer and the contrast film layer, and recording the film layer combination as a first film layer combination.
(3) Preparation of Fresnel lens layer
In this embodiment, the formula of the fresnel lens layer is as follows: the UV curing adhesive comprises a functional group high-transparency yellowing-resistant UV curing adhesive, a dispersing agent and a defoaming agent, wherein the dispersing agent and the defoaming agent account for 0.05-0.2% and 0.35-0.5% of the UV curing adhesive in mass. In the embodiment, the UV light curing adhesive is polyester acrylate curing adhesive, and is specifically OPT-9410 type adhesive; the dispersant is methyl amyl alcohol dispersant, and the defoaming agent is organic silicon defoaming agent.
The preparation process of the Fresnel lens layer comprises the following steps:
pouring the UV light-cured glue into a stirrer, adding a dispersing agent and a defoaming agent, simultaneously evacuating through a high-speed dispersing agent stirrer for 30 minutes, and then pressurizing to drive the material into a light-cured coating line trough. And (3) coating UV (ultraviolet) curing glue with the thickness of about 80un on the contrast film layer surface of the first film layer combination obtained in the step (2) by using a comma scraper, conveying the UV curing glue into a mold roller at the speed of 10 meters per minute, and irradiating and molding by ultraviolet rays with the wavelength of 365-385 while embossing, namely forming a total reflection parallel light Fresnel lens layer on the first film layer combination and marking as a second film layer combination.
(4) Preparation of cylindrical mirror layer and reflective layer
In this embodiment, two production processes of the cylindrical mirror layer are provided, and the cylindrical mirror layer is manufactured on the surface of the fresnel lens layer combined by the second film layer.
The first production process of the cylindrical mirror layer comprises the following steps:
the method comprises the steps of printing lines with the pitch of 0.1-0.16 mm on the surface of a polyvinyl alcohol film (PVA film) by using high-transparency water transfer printing ink, printing the lines with the depth of 0.06-0.1 mm, printing cylindrical mirrors with the cross sections of nearly semi-circular lines and the diameters of 0.06-0.1 mm on the surface of water, placing the printed cylindrical mirrors on the surface of the water, wherein the printed lines are attached to the surface of the water and have no air, upwards, uniformly spraying an activating agent on the structural surface to restore the ink of the printed lines, dissolving the polyvinyl alcohol film in water easily, downwards arranging the working surface of a manufactured Fresnel lens structure, grasping the water inlet angle, transferring the lines to the surface of the Fresnel lens by using water pressure, drying the Fresnel lens through a drying tunnel, and carrying out structural vacuum metal aluminum plating reflection layer plating.
The second production process of the cylindrical mirror layer comprises the following steps:
the high-transparency thermal transfer printing ink is used for printing lines with the pitch of 0.1-0.16 mm and the depth of 0.06-0.1 mm on the surface of the transfer film, the lines are in a shape of a nearly semicircular cylinder, the diameter of the lines is 0.06-0.1 mm, and the cylindrical lens is dried through a drying tunnel at 50 ℃. Then, synchronously feeding the Fresnel lens into a double-roller film covering machine, controlling the temperature of a roller to be 85-90 ℃, transferring the cylindrical mirror structure on the transfer film on the surface of the Fresnel lens through heating, and then vacuum-plating an aluminum reflecting layer.
In this embodiment, a vacuum continuous plating apparatus is used to plate a layer of aluminum with a reflectivity of 92% on the working surface of the fresnel lens, a protective film is formed on the reflective layer, and the obtained film combination is recorded as a third film combination.
According to the invention, the Fresnel lens layer and the cylindrical lens layer are combined, and the cylindrical lens layer is used for opening the visual angle, so that the screen has pure display color and higher contrast, the gain can be 4.0, the definition of a displayed image is multiplied, and the visual angle is wide. The display effect of the 2000-element laser machine for the screen is equivalent to that of the 20000-element laser machine for other screens.
Because the working face of fresnel lens structure aluminizes the reflection stratum, and the interference plane does not plate, left side direction, right side direction, last side direction so, the light of these 3 directions all can get into fresnel lens's interference plane, and light just is absorbed in case get into fresnel lens interference plane, just can not play the display effect who influences the screen, consequently has lightfast effect.
(5) Preparation of protective film layer
The formulation of the protective film layer in this example is: comprises acrylic pressure-sensitive adhesive with solid content of 45-60% and isocyanate, wherein the mass of the isocyanate is 0.2-0.4% of that of the acrylic pressure-sensitive adhesive.
The preparation process of the protective film layer comprises the following steps:
mixing acrylic pressure-sensitive adhesive and isocyanate to prepare slurry, feeding the slurry into comma coating equipment, and uniformly coating the slurry on the surface of an optical PET precoating film with the thickness of 50um by using a comma scraper to form wet glue with the thickness of 150 um. The optical PET precoating film coated with wet glue is baked by a temperature segmentation oven with the length of 32 meters, the segmentation temperature is 40 degrees, 60 degrees, 80 degrees, 100 degrees and 120 degrees in sequence, and a protective film layer is obtained after drying. And (4) synchronously enabling the protective film layer and the third film layer to enter the laminating equipment, and enabling the reflecting layer of the third film layer to be tightly laminated with the protective film layer to obtain a fourth film layer combination.
(6) Preparation of adhesive layer
The adhesive layer is used for adhering the honeycomb aluminum plate layer to the surface of the protective film layer of the fourth film layer combination.
The preparation process of the adhesive layer, namely the acrylic pressure-sensitive adhesive layer, in the embodiment is as follows: selecting acrylic pressure-sensitive adhesive with solid content of 50% and stripping force of 1000g, and coating the acrylic pressure-sensitive adhesive on the surface of the optical PET precoating film by using comma coating equipment to form wet adhesive with the thickness of 60 mu n. The optical PET precoating film coated with the wet glue is baked by a temperature segmentation oven with the length of 32 meters, the segmentation temperature is 40 degrees, 60 degrees, 80 degrees, 100 degrees and 120 degrees in sequence, and an adhesive layer with the thickness of 30 mu n is obtained after drying. And synchronously feeding the adhesive layer and the PET release film into a laminating device, and laminating the adhesive layer and the PET release film with the thickness of 25 mu n. After the lamination, according to the above operation, the other side of the optical PET precoating film is coated with acrylic pressure sensitive adhesive to obtain a film layer structure which is composed of a first PET release film, a first adhesive layer, an optical PET precoating film, a second adhesive layer and a second PET release film in sequence. The adhesive layers are manufactured on two sides of the optical PET pre-coating film, so that the protective film layer is convenient to attach to the honeycomb aluminum plate layer.
(7) Tear first PET and leave the type membrane, paste the honeycomb aluminum sheet layer in first adhesive layer surface to laminate honeycomb aluminum sheet layer and protection film layer surface.
(8) Utilize the second adhesive layer with honeycomb aluminum sheet layer and screen laminating, specifically do:
adopt the laminating machine to paste the double faced adhesive tape on the screen earlier, pack up the type membrane of the face of pasting with the rolling machine simultaneously through polyurethane twin roll machine extrusion laminating at the protection aspect of screen and double faced adhesive tape, the good screen of pasting is from the type membrane, packs up from the type membrane with the rolling machine simultaneously through laminating machine one side aluminum plate again, and good back side cut of pasting, installation, detection, packing.
The performance detection is respectively carried out on the screen of the embodiment and the laser light-resistant screen on the existing market, and the performance parameters are as follows:
with illuminometer, standard blank, 180 degrees semicircle tracks, the test result is: the gain of the existing laser light-resistant screen in the market is 1.1, the left and right visual angles are 15 degrees, and the visual angle is 120 degrees; the screen of this embodiment has a gain of 3.7, a left and right viewing angle of 35 degrees, a visible viewing angle of 170 degrees, and a contrast ratio of 20000: 1.
Compare with the anti-light screen of laser on the existing market, this embodiment screen display effect is better, has high gain, wide visual angle, high contrast. The display effect of the screen matched with a commercially available 2000-element laser machine is equivalent to the effect of other screens matched with laser machines above 20000 elements, and the cost can be saved by 70% for users. Meanwhile, huge development space is brought to the laser screen market.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.
Claims (10)
1. A method for preparing a high-gain laser light-resistant screen based on a Fresnel lens is characterized by comprising the following steps:
(1) preparing AG film slurry, coating the AG film slurry on the surface of a PET optical pre-coated film, and sequentially drying and curing by ultraviolet light to obtain an AG film layer;
(2) preparing contrast film slurry, coating the contrast film slurry on the surface of an optical PET optical pre-coating film, baking to obtain a contrast film, and attaching the contrast film to an AG film;
(3) preparing Fresnel lens slurry, coating the Fresnel lens slurry on the surface of a contrast film layer, and obtaining a Fresnel lens layer through ultraviolet irradiation;
(4) manufacturing a cylindrical lens layer on the Fresnel lens layer by a water coating transfer printing method;
the cylindrical mirror layer is a plurality of parallel lines with the pitch of 0.1-0.16 mm and the thickness of 0.06-0.1 mm, the cross section of each line is approximately semicircular, and the diameter of each line is 0.06-0.1 mm;
(5) plating a metal reflecting layer on the cylindrical mirror layer;
(6) preparing protective film slurry, coating the protective film slurry on the surface of a PET optical pre-coating film, and sequentially drying and curing by ultraviolet light to obtain a protective film;
(7) attaching a protective film layer on the metal reflecting layer;
(8) preparing adhesive slurry, coating the adhesive slurry on the surface of the PET optical pre-coating film, drying to obtain an adhesive film, and bonding the adhesive film with the combined film layer obtained in the step (7);
(9) and adhering the honeycomb aluminum plate to the adhesive film.
2. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the AG film slurry comprises UV hardening liquid, a sand surface agent and a dispersing agent, wherein the dosage of the sand surface agent and the dispersing agent is respectively 5-8% and 0.5-1% of the weight of the UV hardening liquid;
the sand surface agent is silicon dioxide sand surface agent with the particle size of 4-8 mu m, and the dispersing agent is methyl amyl alcohol dispersing agent.
3. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 2, which comprises the following steps:
the AG film layer also comprises black nano color paste, and the amount of the black nano color paste is 6-9% of the weight of the UV hardening liquid.
4. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the contrast film slurry comprises organic silicon pressure-sensitive adhesive with solid content of 45-65%, nanoscale blue-phase transparent black paste, chloroplatinic acid, a dispersing agent, a leveling agent and a defoaming agent; wherein the dosage of the nano blue-phase transparent black paste, the chloroplatinic acid, the dispersant, the flatting agent and the defoaming agent is respectively 0.3-0.5%, 0.1-0.2%, 0.2-0.4%, 0.01-0.15% and 0.2-0.3% of the organic silicon pressure-sensitive adhesive;
the dispersing agent is an acrylamide dispersing agent, the flatting agent is a polyether organic silicon flatting agent, and the defoaming agent is an organic silicon defoaming agent.
5. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the Fresnel lens slurry comprises UV light-cured glue, a dispersing agent and a defoaming agent, wherein the dispersing agent and the defoaming agent account for 0.05-0.2% and 0.35-0.5% of the UV light-cured glue in mass;
the UV light curing adhesive is polyester acrylate curing adhesive, the dispersing agent is methyl amyl alcohol dispersing agent, and the defoaming agent is organic silicon defoaming agent.
6. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the method for manufacturing the cylindrical lens layer on the Fresnel lens layer by using the water coating transfer printing method comprises the following steps:
printing lines, namely a cylindrical mirror, on the surface of the polyvinyl alcohol film by using high-transparency water transfer printing ink;
placing the printed cylindrical lens on the water surface, and spraying an activating agent on the cylindrical lens to restore the ink of the printed lines;
the working surface of the prepared Fresnel lens is immersed in water, and the lines are transferred to the surface of the Fresnel lens by water pressure.
7. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the method for manufacturing the cylindrical lens layer on the Fresnel lens layer by using a water coating transfer printing method comprises the following steps:
printing lines, namely a cylindrical mirror, on the surface of the transfer film by using high-transparency heat transfer printing ink; drying the film through a drying tunnel of 50 ℃, synchronously feeding the film and the prepared Fresnel lens into a double-roller film laminating machine, and transferring the cylindrical mirror structure on the transfer film on the surface of the Fresnel lens through heating.
8. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the reflecting layer is an aluminum-plated reflecting layer.
9. The method for preparing a high-gain laser anti-light screen based on Fresnel lens according to claim 1, which comprises the following steps:
the protective film slurry comprises acrylic pressure-sensitive adhesive and isocyanate, wherein the mass of the isocyanate is 0.2-0.4% of that of the acrylic pressure-sensitive adhesive.
10. The method for manufacturing a fresnel lens-based high-gain laser anti-glare screen as claimed in claim 1, wherein:
the adhesive sizing agent is acrylic pressure-sensitive adhesive.
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| CN201911263396.8A CN112946987B (en) | 2019-12-11 | 2019-12-11 | Preparation method of high-gain laser anti-light screen based on Fresnel lens |
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| CN201911263396.8A CN112946987B (en) | 2019-12-11 | 2019-12-11 | Preparation method of high-gain laser anti-light screen based on Fresnel lens |
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| CN112946987B true CN112946987B (en) | 2022-05-31 |
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