Method and system for making an optically functional film

Abstract

Methods and apparatuses for manufacturing eyeglass lenses using a solution casting process are provided. The method can include providing a first soluble polymer solution. The method can include providing a first dye solution including at least one dye. The method can include adding the first dye solution to the first soluble polymer solution to form a first dyed solution. The method can include casting the first dyed solution to form a first film. The method can include providing a second soluble polymer solution. The method can include providing a second dye solution including at least one dye. The method can include adding the second dye solution to the second soluble polymer solution to form a second dyed solution. The method can include casting the second dyed solution on the first film to form a bilayer film. The method can include laminating or casting the bilayer film onto the eyeglass lens.

Description

[0001] Cross-referencing of relevant publications

[0002] This continuation-in-part application claims priority to the filing date of U.S. Patent Application Serial No. 15 / 895,564, "Methods and Systems for Making an Optical Functional Film," filed February 13, 2018. It also claims priority to the filing date of U.S. Patent Application Serial No. 14 / 886,078, "Methods and Systems for Making an Optical Functional Film," filed October 18, 2015, and issued on April 7, 2020, as U.S. Patent No. 10,611,106. This U.S. Patent is a continuation-in-part application and claims priority to U.S. Patent Serial No. 14 / 806,579, "Methods and Systems For Making An Optical Functional Film." Priority is claimed on the filing date of U.S. Patent Application Serial No. 14 / 806,579, filed July 22, 2015, and pursuant to 35U.SC119(e), on the filing date of U.S. Provisional Patent Application No. 62 / 116,545, filed February 15, 2015, entitled “Solution Casting Method”. All documents are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure relates generally to optical components, and particularly to methods and systems for producing functional plastic films, functional polymer films, functional polyvinyl alcohol (PVA) films or functional polyethylene terephthalate (PET) films. Background Technology

[0004] It is well known that ultraviolet (UV) light from high-intensity light sources can cause severe flash burns to the cornea. Therefore, the eyes may need to be protected from these harmful UV rays. During welding processes, when exposed to sunlight at altitudes above 5000 feet (1524 meters), or when exposed to direct sunlight on snow or water, or under direct sunlight, the eyes may need to be protected from UV light.

[0005] Infrared (IR) radiation can also be harmful. Wireless communications, electrical appliances, computers, lighting, and natural resources such as sunlight can all emit harmful radiation to varying degrees. IR may account for more than half of the thermal spectrum radiation in sunlight. At the zenith, sunlight at sea level can provide approximately 1 kilowatt of irradiance per square meter, of which 527 watts are IR radiation. Once sunlight reaches the Earth's surface, almost all of the thermal radiation is likely IR.

[0006] Sunlight energy on Earth can be categorized into approximately 3% UV radiation, 44% visible light, and 53% IR radiation. Therefore, prolonged exposure to strong sunlight without protection can cause a burning or stinging sensation in the eyes, often accompanied by fatigue. This discomfort can be particularly pronounced for contact lens wearers, as contact lenses may absorb IR and "heat up." Ophthalmologists may encourage developing the habit of wearing sunglasses when spending extended periods in the sun.

[0007] Traditionally, to block harmful light from light sources, protective lenses can be coated with one or more layers of IR and / or visible dyes. Typically, soluble dyes and / or metal oxide pigments are used in the coating to absorb or reflect light of certain frequencies, such as IR and UV frequencies. Therefore, coated lenses can reduce or alleviate eye diseases such as cataracts and glaucoma.

[0008] Due to the importance of sunglasses and protective eyewear, numerous coating techniques have been invented. IR or visible light coating can be applied by impregnating or spraying a solvent-based IR or visible dye onto another optical layer of the lens. However, the curvature of most lenses can pose a significant obstacle to the application of IR or visible light coating, as the coating application may be uneven, thus reducing the effectiveness of the protective layer.

[0009] Using traditional methods such as extrusion or injection molding, IR or visual dyes can be added to the process. Extrusion is a process used to create objects with a fixed cross-sectional profile. Material can be pushed or pulled through a mold with the desired cross-section. In plastic extrusion processes, the plastic may first be melted into a viscous, semi-liquid state. After it softens, the plastic can be extruded through a forming opening. Using this technique, curved lenses can be created by pushing a softened optical film through a forming opening.

[0010] Injection molding is a manufacturing process that produces parts by injecting material into a mold. The material for the part can be fed into a heated container, mixed, and forced into the mold cavity, where it cools and hardens to the cavity's structure. For optical plastic films, whether extrusion or injection molding, heat can be used to soften the plastic film, allowing it to be shaped into a curved form. Because dyes are sensitive to heat, some dye degradation may occur, reducing their effectiveness in protecting the eyes.

[0011] Other issues with these IR or visible light coated lenses are that they are easily scratched and not resistant to chemicals or elements. Over time, the protective layer may lose its effectiveness and become harmful if not detected and replaced. To overcome this problem, lens manufacturers have begun to spray, impregnate, or inject another protective layer on top of the IR / visible light layer. However, the extra layer can make the lens thicker, which is an obstacle to eyeglass design and comfort.

[0012] Furthermore, traditional coating methods using injection molding or extrusion may be aesthetically less appealing because IR dyes appear green in such coatings. To counteract or compensate for the undesirable green tint, gray can be added to the PVA film. However, the addition of this gray significantly reduces light transmission and thus visibility. Finally, adding gray to the PVA film on the lens may increase the cost of the lens, and consequently, the cost of the final product. Therefore, inexpensive and rapid materials and manufacturing processes for IR-absorbing lenses are likely desirable.

[0013] Recently, to overcome the drawbacks of extrusion and injection molding methods, a solution casting method has been invented and optimized. This manufacturing technology may be unique because it does not require traditional extrusion or injection molding techniques, but easily combines components and features traditionally produced through these processes. The method utilizes a mandrel or inner diameter mold, which is immersed in a polymer solution or liquid plastic tank specifically designed for this process. Due to a combination of thermal and frictional properties, the polymer solution forms a thin film around the mold. The mold can then be precisely and controllably removed from the tank, followed by a curing or drying process.

[0014] Other casting equipment used in solution casting methods is belt or barrel machines. Typically, the support belt is 1.0 to 2.0 meters wide and 10 to 100 meters long. The stainless steel belt thickness can be between 1.0 and 2.0 millimeters. The barrel is typically 4 to 8 meters in diameter and 1.20 to 1.50 meters wide. Belt channels can allow airflow in the machine or in the opposite direction. The barrel can be tightly sealed to prevent steam leakage and to direct airflow in the opposite direction to barrel movement. One of the two pulleys or barrel can be connected to a drive that requires extremely precise speed control to avoid even slight speed variations. One barrel is connected to a servo system that adjusts belt tension to ensure constant flatness and the “absence” of belt movement (vibration) in critical areas behind the casters, and to control the expansion and contraction of belt length caused by temperature changes. Belt machines can have guiding systems to prevent belt displacement during operation. The belt can be guided by the horizontal movement of the support barrel. Many different support materials are used for the strip: copper, silver-plated copper, chrome-plated steel, stainless steel, metal coated with polyvinyl alcohol or gelatin, polyester film, polytetrafluoroethylene (PTFE) film, and other polymer films.

[0015] Currently, the most common support materials are stainless steel and chrome-plated surfaces. For belt and drum machines, important considerations are the thermal conductivity of the material, the technology used to create the desired surface finish, and the options for repairing small surface defects. This casting technology allows for the simple production of films with structured surfaces. The belt surface can be clearly and accurately replicated on one surface of the film. The techniques used to adapt drum or belt surfaces to highly smooth, structured, or matte film surfaces are proprietary methods.

[0016] Once the first layer of the film has been properly cured, secondary features (such as braided or coiled threads, laser-cut tubing, or engineered metal reinforcements) can be added to the product to prevent kinking or imaging targets specific to the intended medical application. Multiple casting steps can then be repeated to encapsulate the reinforcement, increase wall thickness, add additional lumens, and optimize column strength. The part is then removed from the mold after hardening or curing. This method can be applied to the liquid form of the solvent polymer without the need for overheating to harden the part. Because this method uses centrifugal force to shape the part, very thin layers of IR or visual dye solution can be added to the optical film without the use of overheating, provided the flow ratio is appropriate.

[0017] Another method for producing thin films is a static method, such as cavity molding, plate casting, or other similar methods. Summary of the Invention

[0018] The Summary of the Invention is provided to present the selected concepts in a simplified form, which are further described in the Detailed Description section below. The Summary of the Invention is not intended to identify key features of the claimed subject matter, nor is it intended to assist in determining the scope of the claimed subject matter.

[0019] According to one aspect of this disclosure, a method for manufacturing spectacle lenses using functional films is provided. The method may include providing a polyvinyl alcohol (PVA) material or a polyvinyl butyral (PVB) material, and adding a portion of water to the PVA or PVB material to prepare a solution. Additionally, the method may also include providing a portion of a water-soluble blue blocking dye and a contrast-enhancing dye, and adding a portion of water or methanol to the water-soluble dye to prepare a dye solution. The method may include applying the dyed PVA or PVB solution to a running belt in a channel, allowing the dyed PVA or PVB solution to solidify into an optical film on the running belt by supplying an airflow in the channel, controlling the thickness, dryness, and absorptivity of the optical film by adjusting at least one of 1) the airflow direction, 2) the belt speed, or 3) the belt channel gap spacing, and removing the optical film from the running belt. The method may include laminating or casting an optical film onto a spectacle lens, wherein the PVA or PVB solution has a polymer concentration between 9% and 25% (inclusive), and the dye solution has a dye concentration between 0.05% and 5% (inclusive); the spectacle lens has absorption rates in both a blue light blocking agent and a contrast enhancing agent, with absorption rates of 30% to 99% for light with wavelengths from 400 nm to 455 nm, absorption rates of more than 37% for light with wavelengths from 570 nm to 595 nm, and absorption rates of more than 37% for light with wavelengths from 760 nm to 2000 nm. Attached Figure Description

[0020] The appended claims set forth the novel features of this disclosure. In the following description, similar components are designated with the same numerals throughout the specification and drawings. The appended drawings are not necessarily drawn to scale; for clarity and brevity, some figures may be shown in enlarged or generalized form. When combined with the appended claims… Figure 1 Upon reading this disclosure, the preferred modes of use, further objectives, and advantages thereof will be best understood by referring to the detailed description of the following illustrative embodiments, in which:

[0021] Figure 1 This is an illustrative view of the preparation of a polymer or PVA solution in a preferred solvent or water according to one aspect of this disclosure;

[0022] Figure 2 This is an illustrative view of the preparation of IR dyes and / or laser dyes, photochromic visible dye solutions in a preferred solvent or water according to one aspect of this disclosure;

[0023] Figure 3 These are illustrative views of a typical solution casting method and apparatus according to one aspect of this disclosure;

[0024] Figure 4These are illustrative views of a process for fabricating functional thin films using a solution casting method according to one aspect of this disclosure; and Figure 5 This is an illustrative view of a novel functional thin film, as an optical component, laminated with other materials according to one aspect of this disclosure to produce eyeglass lenses, camera lenses, microscope lenses, automobile windows, building windows, electronic screens, lampshade protection, etc.

[0025] Figure 6 This is another embodiment of the present invention.

[0026] Figures 7A to 7L Some example spectrometer plots using various example dye combinations are shown. Detailed Implementation

[0027] The above description is provided to enable those skilled in the art to practice the various embodiments described herein. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments. Therefore, the claims are not intended to be limited to the embodiments shown and described herein, but are given the full scope consistent with the language of the claims, wherein, unless specifically stated, reference to a singular element is not intended to mean "one and only one," but rather "one or more." All structural and functional equivalents of the elements of the various embodiments described throughout this disclosure (known or later to those skilled in the art) are expressly incorporated herein by reference, and it is intended that the claims include such equivalents. Furthermore, nothing disclosed herein is intended to be made public, whether or not such disclosure is expressly recited in the claims.

[0028] A method for producing a dyed functional film includes the following steps: providing a soluble polymer material, PVA powder, or PVA material; adding a solvent or water to the polymer material, PVA powder, or PVA material to form a soluble polymer or PVA solution; providing a soluble dye; adding a solvent to an IR and / or laser dye, photochromic dye, or visual dye to form a soluble dye solution; adding the dye solution to the polymer or PVA solution; introducing the dyed polymer or PVA solution into a solution casting apparatus; causing the solution casting apparatus to form a thin dyed functional film from the dyed polymer or PVA solution; and removing the thin dyed functional film from the casting apparatus; and allowing the film to dry and cure.

[0029] In one embodiment, the dyed functional film is dried at a temperature between 40 and 100°C. In another embodiment, the thickness of the dyed functional film is between 0.0025 mm and 2.0 mm.

[0030] In one aspect of this application, a method for manufacturing a functional thin film is disclosed, comprising the steps of: providing a soluble polymer or PVA material; adding a polymer solvent to the polymer or PVA material to form a soluble polymer solution or PVA solution; providing a soluble dye; adding a dye solvent to the soluble dye to form a soluble dye solution; adding the dye solution to the polymer solution or PVA solution, thereby forming a dyed polymer solution or dyed PVA solution; introducing the dyed polymer solution or dyed PVA solution into a solution casting apparatus; allowing the solution casting apparatus to form a thin dyed optical film from the dyed polymer solution or dyed PVA solution; removing the thin dyed optical film from the solution casting apparatus; and allowing the thin dyed optical film to dry and cure. In one embodiment, the dyed optical film is dried at a temperature between 40 and 100°C. In one embodiment, the thickness of the dyed optical film is between 0.0025 mm and 2.0 mm. In one embodiment, a polymer is selected from the group consisting of TAC, cellulose acetate, cellulose propionate, polyurethane, PVC, silicone polyurethane copolymer, acrylic acid, COP, tetrafluoroethylene polymer, PC, PP, PE, polyethersulfone, polyetherimide, polyvinylidene fluoride, etc., and then the polymer is added to a suitable solvent, such as triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, and dichloromethane. In one embodiment, the polymer solvent is selected from the group consisting of triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, and water.

[0031] In one embodiment, the thin stained optical film can be used as a lens for eyeglasses, vehicle windows, camera lenses, microscope lenses, building windows, electronic screens, or lampshades. In one embodiment, the thin stained optical film is laminated into a glass or plastic lens. In one embodiment, a vacuum coating is applied to the thin stained optical film. In one embodiment, an anti-reflective coating is applied to the thin stained optical film. In one embodiment, a hard coating is applied to the thin stained optical film. In one embodiment, a waterproof coating is applied to the thin stained optical film. In one embodiment, a scratch-resistant coating is applied to the thin stained optical film. In one embodiment, the thin stained optical film is stretched into a PVA polarizing film. In one embodiment, the soluble dye is selected from the group consisting of IR dyes, visible dyes, photochromic dyes, or absorbing dyes. In one embodiment, the IR dye is selected from the group consisting of tetraammonium structures, phthalocyanine imines, naphthylcyanine, metal complexes, azo dyes, anthraquinones, secondary acid derivatives, ammonium dyes, perylene-phenylene-isoaromatic metal dithiobenzyl diazole phthalocyanine spirochetes, tetraarylene-diamines, triaryleneamines, water-soluble phthalocyanines, and / or naphthylcyanine dye chromophores or similar dyes.

[0032] In another aspect of this application, a method for manufacturing a functional thin film includes the following steps: providing a soluble polymer; adding a polymer solvent to the soluble polymer to form a soluble polymer solution; providing a soluble dye; adding a portion of PVA material to the soluble polymer solution; adding a dye solvent to the soluble dye to form a soluble dye solution; adding the dye solution to the polymer solution, thereby producing a dyed polymer solution; introducing the dyed polymer solution into a solution casting apparatus; allowing the solution casting apparatus to form a thin dyed optical film from the dyed polymer solution; removing the thin dyed optical film from the solution casting apparatus; and allowing the thin dyed optical film to dry and cure.

[0033] In another aspect of this application, a spectacle lens comprising a thin dyed optical film is disclosed, wherein the thin dyed optical film is made in a solution casting apparatus using a partially dyed polymer solution, wherein the dyed polymer solution comprises a partially soluble dye solution and a partially soluble polymer solution, wherein the soluble dye solution comprises a partially soluble dye and a partially dye solvent, and wherein the soluble polymer solution comprises a partially polymer solvent and a partially soluble polymer.

[0034] In another aspect of this application, a spectacle lens comprising a thin dyed optical film is disclosed, wherein the thin dyed optical film is fabricated in a solution casting apparatus using a partially dyed PVA solution, wherein the dyed PVA solution comprises a partially soluble dye solution and a partially soluble PVA solution, wherein the soluble dye solution comprises a partially soluble dye and a partially dye solvent, and wherein the soluble PVA solution comprises a partially polymer solvent and a partially PVA material. In one embodiment, a soluble polymer is selected from the group consisting of TAC, cellulose acetate, cellulose propionate, polyurethane, PVC, silicone polyurethane copolymer, acrylic acid, COP, tetrafluoroethylene polymer, PC, PP, PE, polyethersulfone, polyetherimide, polyvinylidene fluoride, etc., and then the polymer is added to a suitable solvent, such as triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, and dichloromethane. In one embodiment, the polymer solvent is selected from the group consisting of triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, cyclohexanone, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, and water.

[0035] In one embodiment, the soluble dye is selected from the group consisting of IR dyes, visible dyes, photochromic dyes, and absorbing dyes.

[0036] In one embodiment, the IR dye is selected from the group consisting of tetraammonium structures, phthalocyanine imines, naphthylcyanines, metal complexes, azo dyes, anthraquinones, secondary acid derivatives, ammonium dyes, perylene cyanide isoaromatics, metal dithiobenzene diazole phthalocyanine spirochetes, tetraarylene diamines, triarylene amines, water-soluble phthalocyanines, and / or naphthylcyanine dye chromophores.

[0037] In one embodiment, the polymer solvent is selected from the group consisting of triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, cyclohexanone, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, and water.

[0038] In one embodiment, the soluble dye is selected from the group consisting of IR dyes, visible dyes, photochromic dyes, and absorbing dyes. In one embodiment, the IR dye is selected from the group consisting of tetraammonium structures, phthalocyanine imines, naphthylcyanines, metal complexes, azo dyes, anthraquinones, secondary acid derivatives, ammonium dyes, perylene-phenylene-isoaromatic metal dithiobenzyl diazole phthalocyanine spirochetes, tetraarylene-diamines, triarylene-amines, water-soluble phthalocyanines, and / or naphthylcyanine dye chromophores.

[0039] In one aspect of this application, a method for manufacturing a functional thin film includes the following steps: providing a PVA material; adding a portion of water to the PVA material to prepare a PVA solution; providing a portion of a water-soluble near-IR dye; adding a portion of water or methanol to the water-soluble near-IR dye to prepare a dye solution; adding the dye solution to the PVA solution, thereby preparing a dyed PVA solution; introducing the dyed PVA solution into a solution casting apparatus; allowing the solution casting apparatus to form a thin dyed optical film from the dyed PVA solution; removing the thin dyed optical film from the solution casting apparatus; and allowing the thin dyed optical film to dry and cure. In one embodiment, the dyed optical film is dried at a temperature between 40 and 100°C. In one embodiment, the thickness of the dyed optical film is between 0.015 mm and 3.0 mm. In one embodiment, the water-soluble near-IR dye is selected from the group consisting of the following chemical formulas: C38H46ClN2O6S2Na; or C43H47N2O6S2Na; or C44H52N3O6S3Na; or C38H49N3O6S4Cl; C46H51N2O6S2Cl; C52H56N3O6S3Na. In one embodiment, the thin dyed optical film can be used as a spectacle lens, vehicle window, camera lens, microscope lens, building window, electronic screen, lampshade protection, telephone screen, television screen, computer screen, or electrical device. In one embodiment, the thin dyed optical film is laminated into a glass or plastic lens. In one embodiment, a vacuum coating is applied to the thin dyed optical film. In one embodiment, an anti-reflective coating is applied to the thin dyed optical film. In one embodiment, a hard coating is applied to the thin dyed optical film. In one embodiment, a waterproof coating is applied to the thin dyed optical film. In one embodiment, a scratch-resistant coating is applied to the thin dyed optical film. In one embodiment, a thin dyed optical film is stretched into a PVA polarizing film. In another aspect of this application, a spectacle lens comprising a thin dyed optical film is disclosed, wherein the thin dyed optical film is fabricated in a solution casting apparatus using a partially dyed PVA solution, wherein the dyed PVA solution comprises a partially dye solution and a partially PVA solution, wherein the dye solution comprises a partially water-soluble IR dye and a partially water, and wherein the PVA solution comprises a partially water and a partially PVA material.In another embodiment, the water-soluble near-IR dye is selected from the group comprising the chemical formulas: C38 H46 Cl N2O,S2 Na; or C43 H47 N2O6S2 Na; or C44 H52 N3 O6S3Na; or C38 H49 N3 O6S4 Cl; C46 H51 N2 O6S2 Cl; C52 H56N3 O6S3 Na. A method for manufacturing a functional thin film is disclosed, comprising the following steps: providing a PVA material; adding a portion of water to the PVA material to prepare a PVA solution; providing a portion of a water-soluble near-IR dye; adding a portion of water or methanol to the water-soluble near-IR dye to prepare a dye solution; adding the dye solution to the PVA solution, thereby preparing a dyed PVA solution; introducing the dyed PVA solution into a solution casting apparatus; allowing the solution casting apparatus to form a thin dyed optical film from the dyed PVA solution; removing the thin dyed optical film from the solution casting apparatus; and allowing the thin dyed optical film to dry and cure. In another embodiment, the dyed optical film is dried at a temperature between 40 and 100°C. In another embodiment, the thickness of the dyed optical film is between 0.015 mm and 3.0 mm. In one embodiment, a portion of the water-soluble near-IR dyes are selected from the group consisting of the following chemical formulas: C38 H46 Cl N2 O6 S2Na; or C43 H47 N2 O6S2 Na; or C44 H52 N3 O6S3 Na; C38 H49 N3 O6S4 Cl; C46 H51 N2 O6S2Cl; C52 H56 N3 O6S3 Na.

[0040] In another embodiment, the thin stained optical film can be used as an eyeglass lens, vehicle window, camera lens, microscope lens, building window, electronic screen, lampshade protection, telephone screen, television screen, computer screen, or electrical device. In another embodiment, the thin stained optical film is laminated onto a glass lens or plastic lens. In another embodiment, a vacuum coating is applied to the thin stained optical film. In another embodiment, an anti-reflective coating is applied to the thin stained optical film. In another embodiment, a hard coating is applied to the thin stained optical film. In another embodiment, a waterproof coating is applied to the thin stained optical film. In another embodiment, a scratch-resistant coating is applied to the thin stained optical film. In another embodiment, the thin stained optical film is stretched into a PVA polarizing film. In another aspect of this application, an eyeglass lens comprising a thin stained optical film, wherein the thin stained optical film is made in a solution casting apparatus using a partially stained PVA solution, wherein the stained PVA solution comprises a partially dye solution and a partially PVA solution, wherein the dye solution comprises a partially water-soluble IR dye and a partially water, and wherein the PVA solution comprises a partially water and a partially PVA material. In another embodiment, the water-soluble near-IR dye is selected from the group having the chemical formula: C38 H46 Cl N2O,S2 Na; or C43 H47 N2 O8S2 Na; or C44 H52 N3 O8S3 Na; or C38 H49 N3 O6S4 Cl; C46 H51 N2 O8S2 Cl; C52 H56 N3 O6S3Na.

[0041] In another aspect of this application, a method for manufacturing a functional thin film is disclosed, the method comprising the steps of: providing a soluble polymer; adding a polymer solvent to the polymer to form a soluble polymer solution; providing a soluble dye; adding a dye solvent to the soluble dye to form a soluble dye solution; adding the dye solution to the polymer solution, thereby forming a dyed polymer solution; introducing the dyed polymer solution into a solution casting apparatus; allowing the solution casting apparatus to form a thin dyed optical film from the dyed polymer solution; removing the thin dyed optical film from the solution casting apparatus; and allowing the thin dyed optical film to dry and cure. In one embodiment, the dyed optical film is dried at a temperature between 40 and 150°C. In one embodiment, the thickness of the dyed optical film is between 0.015 mm and 3.0 mm. In one embodiment, a polymer is selected from the group consisting of TAC, cellulose acetate, cellulose propionate, polyurethane, PVC, silicone polyurethane copolymer, acrylic acid, COP, tetrafluoroethylene polymer, PC, PP, PE, PET, polyethersulfone, polyetherimide, polyvinylidene fluoride, and polyoxyethylene (ethylene oxide), and then the polymer is added to a suitable solvent, such as triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, and IP. A, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivatives, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, alcohol, o-chlorophenol, DMSO, difluoroacetic acid (pure or mixed with dichloromethane), 1,1,1,3,3,3-hexafluoro-2-propanol, o-chlorophenol, o-cresol, tetrachloroethane / phenol, dichloromethane (DCM) containing trace amounts of dioxane, nitrobenzene, etc. In one embodiment, the polymer solvent is derived from triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, cyclohexanone, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, ethanol, phenol, o-chlorophenol, DMSO, trifluoroacetic acid (pure or mixed with dichloromethane), 1,1,1,3,3,3-hexafluoro-2-propanol, o-chlorophenol, o-cresol, tetrachloroethane / phenol, dichloromethane (DCM) containing small amounts of dioxane, nitrobenzene, etc. In one embodiment, a thin stained optical film is laminated onto a glass or plastic lens or sheet forming at least one layer, followed by a bending or co-injection molding process.In one embodiment, the soluble dye is selected from the group consisting of IR dyes, visible dyes, photochromic dyes, or absorbing dyes. In one embodiment, a vacuum coating is applied to the thin dyed optical film. In one embodiment, an anti-reflective coating is applied to the thin dyed optical film. In one embodiment, a hard coating is applied to the thin dyed optical film. In one embodiment, a waterproof coating is applied to the thin dyed optical film. In one embodiment, a scratch-resistant coating is applied to the thin dyed optical film. In one embodiment, the thin dyed optical film can be used as eyeglass lenses, vehicle windows, camera lenses, microscope lenses, building windows, electronic screens, lampshade protection, telephone screens, television screens, computer screens, or electrical devices.

[0042] Some embodiments are described in detail with reference to the accompanying drawings. Additional embodiments, features, and / or advantages will become apparent from the following description, or may be learned by practicing this application. The following description is not intended to be limiting, but merely to describe the general principles of this application. The steps for performing the method described herein form one embodiment of this application, and unless otherwise stated, not all steps must be performed to practice this application, nor must they be performed in the listed order. It should be noted that references to "an," "a," or "some" embodiments in this disclosure do not necessarily refer to the same embodiment, and such references mean at least one.

[0043] According to the practice described in this application, the method and system for fabricating functional thin films disclosed herein offer many important advantages over the prior art. Specifically, this application yields nearly isotropic, flat, and dimensionally stable functional thin films. Moreover, the functional thin films achieve maximum optical purity and extremely low haze. The films are also dyed to precise specifications without being affected by dye degradation issues. Therefore, the current functional thin films require less processing, fewer defects, less delamination, and lower stress, thus requiring fewer layers and shorter processing time for optical lenses. Despite these many advantages, the current method uses easily introduced mixed components as used in conventional methods. This application does not increase material costs; in some cases, it actually reduces material costs because it obtains precise optical properties, specifications, and thickness in the functional thin films, which in turn reduces the number of layers in the optical lenses.

[0044] See Figure 1Plastic polymer 101 (such as TAC, cellulose acetate, cellulose propionate, polyurethane, PVC, polyurethane silicone copolymer, acrylic acid, COP, tetrafluoroethylene polymer, PC, PP, PE, polyethersulfone, polyetherimide, polyvinylidene fluoride, etc.) is added to a suitable solvent 102 (such as water, triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, polyvinyl alcohol, etc.) to prepare a first solution 100, liquid A, plastic polymer.

[0045] In another embodiment, a plastic polymer (such as TAC, cellulose acetate, cellulose propionate, polyurethane, PVC, polyurethane silicone copolymer, acrylic acid, COP, tetrafluoroethylene polymer, PC, PP, PE, PET, polyethersulfone, polyetherimide, and polyvinylidene fluoride) is added to a suitable solvent 102 (such as triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivative, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, polyvinyl alcohol, etc.) to prepare a first solution 100, liquid A, and plastic polymer.

[0046] In another embodiment, PVA material 101 is added to a suitable solvent 102 (such as water) to form a PVA solution.

[0047] See Figure 2 Dye 201 (such as IR and / or visual dyes, photochromic dyes, or any absorbing dye) is added to a suitable solvent 202 (such as triphenyl phosphate, diphenyl phosphate, dichloromethane, methanol, resorcinol, tetraphenyl diphosphate, acetone, butanol, butyl acetate, butanol, biphenyl diphenyl phosphate, chloroform, MEK, EAC, IPA, MIBK, BCS, MCS, EAC, BAC, CYCLOHEXANONE, tetrahydrofuran, ether, ester, polyimide, dimethylformamide, polyvinyl alcohol, methylcellulose, starch derivatives, gelatin, methyl ethyl ketone, tetrahydrofuran, dichloromethane, water, etc.) to prepare a second solution 200, liquid B, and dye solution.

[0048] In another embodiment, a water-based dye 201 (such as a water-soluble near-IR dye) is added to a suitable solvent 202 (such as water or methanol) to form a water-soluble dye solution. In one embodiment, the components of the water-soluble near-IR dye have the chemical formula: C38H46ClN2O6S2Na; or C43H47N2O6S2Na; or C44H52N3O6S3Na; or C38H49N3O6S4Cl; C46H51N2O6S2Cl; C52H56N3O6S3Na. In another embodiment, the water-soluble near-IR dye is a near-IR fluorescent dye. In another embodiment, the water-soluble near-IR dye is Epolight. TM 2735 Water-soluble dye.

[0049] See Figure 3 This describes a polymer casting method used in this application. A polymer material, PVA powder, or PVA material 301 is mixed with a solvent 302. In one embodiment, a low temperature below 100°C can be used to accelerate the dissolution of the polymer in the solvent. However, in another embodiment, other polymer materials (such as TAC) may dissolve without any heat. The solution can be further processed to obtain a desired solution, thereby creating a functional film with certain optical properties. The final polymer or PVA solution is then introduced into a casting apparatus 303, as shown. In one embodiment, the final polymer or PVA solution is deposited onto a moving belt 304 via casters or a spreader 305. The polymer or PVA solution is dried and cured by an airflow 306 flowing in a belt channel 307 opposite to the direction of the moving belt. It should be appreciated that in other embodiments, the airflow 306 may flow in the direction of the moving belt. It should also be appreciated that the drying air, its direction, belt speed, belt channel space, etc., are calibrated so that the functional film achieves the desired thickness, dryness, and other qualities. In addition, when the functional film reaches the take-off 308, the input polymer or PVA solution must be cured enough to be removed from the tape for further drying or processing.

[0050] See Figure 4 , Figure 3The casting method described herein is applicable to this application. Liquid A, the polymer solution, is prepared by adding polymer material 401 to a suitable solvent 402. Liquid B is a dye solution, prepared by adding dye 403 to a suitable solvent 404, which may be an IR or visible dye, a photochromic dye, or any absorbing dye. In one embodiment, liquid B comprises 0.05% to 5% of an IR or visible dye, a photochromic dye, or an absorbing dye, with the remainder being a suitable solvent. In one embodiment, a preferred embodiment is liquid B containing 3% dye. The resulting solutions are mixed together to prepare a dyeing polymer solution 405. In one embodiment, water-soluble PVA (polyvinyl alcohol) with an IR dye may also contain no more than 10% solvent-soluble polymer in the mixture. In one embodiment, liquid A consists of about 9% to 25% polymer or PVA powder and 75% to 91% suitable solvent.

[0051] In another embodiment, Figure 3 The casting method described herein is applicable to this application. The PVA solution is prepared by adding PVA material 401 to suitable water or methanol 402. Liquid B is a water-soluble dye solution, which is prepared by adding a portion of water-soluble near-IR dye 403 to suitable water or methanol 404. In one embodiment, liquid B comprises 0.05%-5% water-soluble near-IR dye, with the remainder being suitable water or methanol. In one embodiment, a preferred embodiment is liquid B containing 3% dye. The resulting solutions are mixed together to prepare dyed PVA solution 405.

[0052] Next, the dyed PVA solution or dyed polymer solution 405 is introduced into the solution casting apparatus 406. This apparatus utilizes a large belt 407, the material and design of which are molded to suit the desired functional film. In a preferred embodiment, the film is introduced into a drying environment at a temperature between 40 and 150°C. The functional film is continuously removed from the moving belt for further drying, processing, rolling, or sheet storage until use. It is then used in the production of eyeglass lenses, camera lenses, microscope lenses, automotive windows, architectural windows, electronic screens, lampshade protection, etc. In a preferred embodiment, the thickness of the functional film is between 0.015 mm and 3.0 mm. Different films with different optical properties can be laminated together to obtain the desired eyeglass lenses, camera lenses, microscope lenses, automotive windows, architectural windows, electronic screens, lampshade protection, etc. In one embodiment, see... Figure 5 To manufacture curved lens 503, the following will be used. Figure 3The visual and / or IR stained optical film 501 produced by this method is laminated onto another transparent film or glass 500 having certain optical properties. Another scratch-resistant optical glass 502 is laminated onto the stained functional film 501 to protect the IR / visible layer from scratches, chemicals and / or elements.

[0053] In one embodiment, the process for producing functional films can use a multi-head flow machine to cast materials, using different dyes or materials, or with different formats.

[0054] In another embodiment, the functional film can be stretched to be oriented during fabrication.

[0055] In another embodiment, the functional thin film has the physical property of absorbing or reflecting 90% or more of light with wavelengths of 400-430 nm and more than 37% of light with wavelengths of 760-2000 nm.

[0056] In one embodiment, after the functional film is fabricated using a suitable solution casting method, the functional film is formed into the curvature of the final product and can be further bonded to the epoxy layer by injection molding.

[0057] In another embodiment, the functional film is further laminated onto another PVA film as an additional layer. This process can be repeated for multiple PVA films to achieve the intended product design. It should be recognized that different functional films can also be laminated together to achieve certain optical properties.

[0058] In one embodiment, a solution casting method using a single-layer functional film or additional laminates (one or more layers of functional film) can also place the desired shape or curve into a mold for co-injection substrate (main support material).

[0059] In one embodiment, the functional film can be laminated on top, bottom, or between any type of glass, plastic, and / or metal object.

[0060] In one embodiment, the functional film can be formed into any geometry or cast in a mold to achieve the intended design.

[0061] In one embodiment, an aqueous PVA material is used as its own polarization layer, and / or an additional polarization layer is laminated.

[0062] (Spectacle lenses, goggles, protective shields)

[0063] It contains organic thin-film dyes, including selective narrow-band visible dyes, which absorb unwanted radiation light, resulting in better low haze, clarity, and color enhancement contrast, especially in lens products.

[0064] And at least one solution for absorbing IR radiation is added to cast a thin film.

[0065] The lenses used in this application reduce eye fatigue and increase visual comfort.

[0066] In some other embodiments, the lens comprises one or more solution-cast functional films and laminated films, with the functional films ground or not ground but not damaged at a depth of 0.0-1.5 mm protruding from or (in other words) at the top of the lens surface, and the total thickness of the lens is 0.2-10.0 mm, and / or includes an IR film or an additional 0.02-0.18 mm at a depth of 0.001-1.5 mm protruding from or at the top of the lens surface, wherein one layer (ground or not ground) does not damage the functional film, and the total thickness of the lens is 0.2-10.0 mm.

[0067] Most of the energy from the sun reaches Earth in the form of infrared (IR) radiation. In the upper atmosphere, sunlight has a power of 1366 watts per square meter, consisting of approximately 50% IR, 40% visible light, and 10% ultraviolet (UV) radiation (by total energy). At the Earth's surface, this decreases to approximately 1120–1000 watts per square meter, comprising 44% visible light, 3% UV (when the sun is directly overhead, but less at other angles), and the remainder IR. Therefore, at the zenith, the solar radiation per square meter on the Earth's surface consists of approximately 527 watts of IR radiation, 445 watts of visible light, and 32 watts of UV radiation. The balance between absorbed and emitted IR radiation has a crucial impact on Earth's climate.

[0068] The three main potential sources of damage to the human eye under natural light are ultraviolet light, blue visible light, and near-IR radiation. Too many types of radiation reach the Earth at the same time.

[0069] Light waves from both natural and artificial light sources can damage the human eye. Excessive exposure to harmful light can worsen and cause irreversible damage to sensitive parts of the eye.

[0070] Eyeglass lenses are used to protect the eyes from excessive solar radiation, reduce eye strain, and increase visual comfort. Standard lens treatments aim to block harmful light by incorporating colored dyes. These conventional treatments reduce the total amount of visual light passing through the lens and significantly decrease the clarity of vision. Lenses still require improvement.

[0071] The problem with existing methods is that they also significantly block many wavelengths of visible light, reducing visible light transmittance (VLT) through the lens or panel and adversely affecting the wearer's vision.

[0072] Wideband glasses have non-selective filter lenses that reflect light in a scattering manner.

[0073] These broad wavelengths of light blockage severely restrict the wearer's visibility, even in broad daylight. This problem becomes even more pronounced as the level of available light in the surrounding environment decreases. The reduction in available visible light significantly affects the wearer's ability to perform certain functions, impairs their depth perception, and impairs their ability to perceive certain colors.

[0074] Another alternative method for manufacturing protective filters or lenses is to apply a coating to their outer surface after the lens has been formed. Such a coating process significantly increases the cost of the lens, and the absorbed selective dyes can make the coating too thin to be effective. Thickening the coating can lead to unevenness and cracking.

[0075] UV radiation poses a significant risk to eye health. Even on cloudy days, we should wear sunglasses to reduce ultraviolet radiation reaching our eyes. UV radiation is invisible and consists of three main wavelengths: UVA, UVB, and UVC. UVB rays are primarily absorbed by the cornea (the outermost layer at the front of the eye) and therefore do not penetrate to reach the retina, unlike UVA radiation which passes through the cornea to reach the lens and retina. UVC radiation is filtered out by the Earth's atmosphere.

[0076] Table 1 shows the three main components of the UV spectrum.

[0077]

[0078] Table 1: Ultraviolet Spectra

[0079] (UV dyes) Ultraviolet (UV) and visible (Vis) dyes can be introduced into coatings, solutions, and plastics. Blocking UV(A) 315-400nm is important because this radiation reaches the Earth. Current UV protection technology is very mature. It has been around for 40 years and is easily applied to lenses. Of course, the right UV powder and good processing are necessary for lenses that can effectively block UV light. Blue light has shorter wavelengths, while blue and violet photons have shorter wavelengths, making them easily absorbed by molecules. The molecules only stay on the photon for a moment before scattering it in random directions. This is why the sky appears blue. Many scattered photons travel towards the Earth, making the sky appear sparkly. They can also damage the human eye.

[0080] Blue light comes from both natural light sources (sunlight) and artificial light sources (screens, LED lights, electrical appliances, etc.). Exposure to blue light can cause eye fatigue and may trigger a series of chemical reactions that can cause irreversible degenerative damage to the photoreceptor cells in the retina.

[0081] Blue light in the 400-455nm range tends to emit more neon violet-blue scattering, leading to greater visual fatigue and blurred vision. Many organic dyes, including blue-absorbing organic dyes, have blue light absorption peaks in the 400-455nm range. For specific work, visual needs, or personal preferences requiring blocking of blue light in the 400-495nm range, additional dye powders can be added.

[0082] In some cases, blue light can cause serious damage to the human eye. Blue light wavelengths range from 400nm to 480nm, with the 400nm to 455nm range being the most harmful, especially the 410-430nm range. This is because near-violet blue light contains very little neon ultraviolet radiation, has a faster and shorter wavelength, and therefore a greater impact on the eyes. With recent technological advancements, the human eye is exposed to increased blue light throughout the day, and we need to protect ourselves from the effects of this spectrum.

[0083] Well-known technologies for combating 400-455nm blue light include wideband technologies such as staining, impregnation, injection molding, extrusion, coating, and overlay. Insufficient bandwidth can affect color sharpness. Hue values ​​and saturation can also increase darkness.

[0084] Indigo has a wavelength frequency range of approximately 425-450 nm and a frequency of 670-700 terahertz (THz). Indigo can be considered a subset of violet. The low range of the color explains why it is difficult to distinguish this color within the spectral band. Because indigo is not scientifically considered a separate color, any wavelength shorter than 450 nm is considered violet.

[0085] Some embodiments may provide enhanced contrast in certain areas. The sun's maximum radiation is approximately 580 nm, so blocking radiation at 580 nm can be beneficial. One embodiment of this disclosure may include a novel high-contrast method providing anti-blue light lenses that make it easier, easier, faster, and more convenient for people to see clearly from a distance.

[0086] If the frame is the skeleton of glasses, then the lenses are the soul of glasses; the quality of the lenses can determine the future of human eyes! Therefore, as an important line of defense for protecting the eyes, we must consider the three major potential factors that may damage human eyes under natural light: ultraviolet rays, blue light, and near-IR.

[0087] Near-IR Exposure and Cataracts: Cataracts are one of the most common eye diseases associated with near-IR radiation. Prolonged exposure to IR radiation can cause gradual but irreversible opacity of the lens. Another form of damage to the eye from IR exposure includes stoma, a visual loss caused by damage to the retina. Even low levels of IR absorption can cause symptoms such as redness, swelling, or bleeding in the eye. IR rays penetrate clouds more effectively than visible light, resulting in a relatively higher penetration speed and potentially greater damage to the eye. Cataracts caused by near-IR radiation have historically been observed in glassblowers and furnace workers. Due to its spectral absorption characteristics, radiation between 800 and 1200 nm is most likely to cause an increase in the temperature of the lens itself. Visible wavelengths can also contribute to this problem, as heat absorbed by the iris can be transferred to the lens.

[0088] Coating methods with inorganic IR absorption rates may include dye immersion. This method may be insufficient to absorb the N-IR spectral radiation region, and viewers wearing such glasses may experience a deterioration in clarity.

[0089] Infrared radiation (IR) radiation, once absorbed, causes a rise in temperature. IR light is also beyond the detection range of the human eye. It is important to recognize that light radiation acts as a catalyst in the oxidation of materials—especially organic materials. The eye is particularly sensitive to thermal effects. Appropriate protective eyewear can prevent excessive exposure to IR radiation. The biological effects of IR are primarily thermal. IR is easily absorbed by dark-colored objects. High-intensity IR causes tissue necrosis and protein coagulation. Distant IR rays may only penetrate 0.5 cm into the tissue on the left side and are almost completely absorbed by the cornea and aqueous humor. Near-infrared IR rays can penetrate 3 cm into the tissue to reach the retina and are absorbed by the pigment in the iris and retina.

[0090] The glass material used in glass lenses may have slight IR resistance. Temperatures exceeding 800 degrees Celsius are required to melt the glass and mix it with rare-earth IR-absorbing dyes. If damaged, the dyes may only absorb radiation at wavelengths of 750 nm, 810 nm, or 890 nm. Lenses can be manufactured using injection molding or extrusion, but the process may require temperatures exceeding 230 degrees Celsius, which can melt the polymer plastic, damage the dye structure, and reduce color. Furthermore, the lens thickness may need to be at least 0.4 mm, and because the dye is sprayed onto a thicker layer of plastic, the absorbing dye becomes less concentrated, degrading the lens's functionality. To maintain the lens's functional requirements and the requirement that haze (the percentage of incident light scattered through the lens) not exceed 1.0, cast films can be used with injection-molded or cast substrates, and appropriate material selection and techniques (such as cost considerations, demand, or high impact resistance) may be crucial.

[0091] IR radiation is an invisible electromagnetic wave emitted by the sun. Ultraviolet light (wavelengths 280-10000nm), visible light, and IR electromagnetic waves interfere with various electromagnetic waves, especially IR waves in the 800-1200nm range. Therefore, adopting optimal methods to protect the human eye is crucial. Because IR-absorbing lenses are not readily available, information about them is limited. Furthermore, research and development are difficult, and infrared-absorbing dye materials are expensive. Although some products exist on the market, they lack effective functionality. Considering the aforementioned potential for sunlight or artificial light sources to effectively block harmful light waves, this application enables numerous improvements to sunglasses lenses, optical prescription lenses, and optical sheets.

[0092] Embodiments for the following objects: eyeglass lenses, goggles, covers, or lenses

[0093] Embodiments are provided for eyeglass lenses, goggles, covers, or lenses. The embodiments may include an organic dye (visible narrowband absorber) film, wherein the attenuation (absorption) of a narrow bandwidth wavelength of unwanted radiation is selective, particularly in terms of low haze, clarity, and / or enhanced color contrast.

[0094] Furthermore, it adds at least an organic IR-absorbing dye protective layer, which reduces eye fatigue, increases visual comfort, and enhances the vividness of scenes under high-definition colors.

[0095] The lens contains one or more cast functional films and laminated films, which are embedded 0.0-1.5 mm into the convex surface or (in other words) into the lens surface. The functional films may be ground or not ground without damaging them, resulting in a total lens thickness of 0.2-10.0 mm. For IR films, either an additional 0.02-0.18 mm is added to the convex surface, or the film is embedded 0.0-1.5 mm into the surface. The functional films may be ground or not ground without damaging them, resulting in a total lens thickness of 0.2-10.0 mm. This application is a manufacturing method.

[0096] Dyes with a full width at half maximum (FWHM) of 10-80 nm are generally not easily soluble in organic solvents. A solvent that can be dissolved is less than 0.1%-0.2% of the mixture, and a commonly recommended solvent is used for coating. The thickness is approximately 0.05-0.08 mm. When the dye content is too low, it may prevent the desired effect from being achieved. If a solvent with excessively strong dissolving power is used, the coating mixture and the coating substrate will be damaged by the strong solvent. However, for solution-cast films, the use of partially solvent-soluble dyes and polymers may be preferred. When choosing solution casting to produce films, the film thickness can be 5 to 30 times, which means the dye content is also increased by 5 to 30 times, and the strong solvent can also increase the dissolving power by 3 to 15 times depending on the dye.

[0097] The 400-455nm region is more than 8% lower than the 480-550nm region. For special requirements, the 440-490nm region is less than 5% lower than the 400-440nm region. To enhance contrast, suitable dyes can be selected in the 570-595nm region.

[0098] NIR organic dyes are selected from 700-1200nm, and we are also waiting for 1200-2000nm organic IR dyes to be added to the lenses.

[0099] Key application elements

[0100] 1. FWHM - A lens contains at least one or more soluble functional dyes FWHM with absorbance of 10-50 nm (visible narrowband absorber) and has a polymer. Haze should be below 1.0.

[0101] 2. A solution-cast functional film lens comprises one or more solution-cast functional films and laminated films at a protrusion or (in other words) at the top of the lens.

[0102] 3. A convex or (in other words) functional layer extending 0.0-1.5mm into the lens surface, ground without damaging those functional films, or not ground or ground without damaging those functional films, with a total lens thickness of 0.2-10.0mm.

[0103] 4. High contrast or enhanced contrast: This application increases contrast by focusing on the radiation wavelengths absorbed between (C) 570-590nm, helping the human eye better distinguish objects and enhancing the vividness of scenes in high-definition colors.

[0104] 5. Laminated IR-absorbing thin films. Benefits may include ease of handling, ease of application, ease of storage, functionality with fewer film types, ease of raw material preparation, reduced film layers, and reduced separation risk. Another benefit may include increased yield. Yet another benefit may include reduced processing costs per layer and good quality.

[0105] The functional film is concentrated in the upper half of the outer contour. The function is concentrated. The functional color mode of this Rx lens greatly reduces the proportion that is cut off, the function is more even, and the color is relatively flat.

[0106] Solution casting, injection molding, gasket casting, and lamination are different processes that can be selected individually or in combination. The function can be a protective barrier; identical, similar, or different functional layers can be overlapped where necessary, enabling the absorption of transmittance with a transmittance of 0.001% or higher, 0.0001% or higher, or 0.00001%.

[0107] - Functional dyes can be mixed together or applied individually to a film, and the film materials can be different.

[0108] - At least one solution-cast thin film is laminated, co-injected, or co-cast into a lens, shield, or sheet.

[0109] - Or a combination of lens components.

[0110] - Attenuation selective wavelength region. These (AB) UV dyes-VIS dyes can be used alone or in combination to create custom spectral filters for a variety of applications. UV dyes are the easiest to mix with most dyes.

[0111] - Filter out the highest energy wavelength (B) 420-455nm. When (A) UV 400 dyes absorb a portion of the 400-420nm range, the 420-455nm range becomes crucial. However, dyes in this region are easily absorbed and can interfere with other color regions. Therefore, it is necessary to use the correct solution casting method, or use injection molding, casting, and the correct dye for a specific layer, such as using a narrow bandwidth (FWHM) 40nm dye. Mix one or more different functional dyes.

[0112] (C) - This application addresses the issue of decreased vision caused by the sun's maximum radiation at approximately 580nm when wearing protective eyewear. The application increases contrast and focuses on radiation wavelengths between 570-590nm absorbed by (C), thus helping the human eye better distinguish objects. Eyeglass lenses with high or medium contrast enhancement provide better transmittance in the red and green visible spectrum.

[0113] - For (B) 400-760nm conventional (wide) coloring dye absorption visible dye, optional use. Some necessary adjustments may be made to sharpen the color and allow the lens to darken.

[0114] New methods for adding high-contrast, medium-contrast, or low-contrast elements to blue light blocking lenses, or blue light filtering lenses, make it easy, effortless, detailed, fast, and far-reaching to see clearly. Visible radiation can be filtered by attenuating a portion of the light transmitted by the lens within one or more filtering sections. Optical filters may include structures configured to increase the average saturation value of a narrow notch with a bandwidth of 40 nm ± 30 nm, the notch having uniform intensity and transmitting light at least partially through a portion of the lens.

[0115] - Combined with other dyes, it selectively transmits predetermined primary color wavelengths.

[0116] - A suitable mixture of two or more dyes may be required to absorb 400-470 nm.

[0117] - New lenses with multi-functional properties: light-colored lenses for indoor use, rainy days, or early mornings, and dark-colored lenses for sunny days and outdoors.

[0118] (D) Absorption near-IR function.

[0119] Organic IR dyes absorb near-IR radiation in the 760-1100 nm range. This function is more effective compared to inorganic IR dyes. Inorganic IR dyes contain haze and are particulate; therefore, they cannot be used in excessively high percentages, otherwise clarity may deteriorate.

[0120] The newly developed IR absorbing dye has higher transparency in the visible light region than conventional products.

[0121] Current organic IR dyes are already quite good for NIR 700-1400nm, but beyond 1400nm, they need to be used in combination with inorganic IR dyes.

[0122] High-temperature glass lenses are fused with IR dyes. For absorption in the 760-1400 nm range, only the radiation peaks at 750 nm, 810 nm, and 890 nm may be absorbed. Organic NIR dyes in the 760-1400 nm range offer high clarity, high absorbance, sharpness, and comfortable viewing, with moderate haze and overall quality. Absorption in the 400-470 nm range may require a suitable mixture of two or more dyes. Proper solution casting, injection molding, or casting methods, as well as the correct use of dyes with a narrow bandwidth (FWHM) of 40 nm, are crucial. Mixing one or more dyes may also be necessary.

[0123] The lens absorbs more than 38% in the (D) 760-1100nm range, and the same lens absorbs more than 20% in the 1100-2000nm range.

[0124] 1. A lens comprises at least a functional film (B) a blue blocking film and (D) a laminated NIR absorbing film, or (B) and (D) dyes mixed in one film. Coloring dyes may be added or not added, if necessary, one or more layers, and any type of process.

[0125] 2. A lens comprises at least a functional film (B) a blue blocking film and (C) a laminated contrast-enhancing film, or (B) & (C) a dye mixture in one film. Coloring dyes may be added or not added, if necessary, one or more layers & any type of process.

[0126] 3. A lens comprises at least one functional film (B) a blue blocking film and (C) a contrast-enhancing film and (D) a laminated NIR-absorbing film, or any of those dye combination films. With or without added coloring dyes.

[0127] 4. A lens comprises at least one functional film and (C) a contrast-enhancing film.

[0128] (D) Laminated NIR absorbing films with or without added coloring dyes.

[0129] 5. For special needs, protection against (B) 400-495nm blue light is required, along with one or more additional functional dyes or conventional coloring (broad) dyes, and the addition / deletion of any functional dyes (C) to enhance contrast (D) NIR absorption film.

[0130] 6. Different dyes can be combined on the same film.

[0131] 7. Functional films with co-injection molding substrates.

[0132] 8. The above may or may not contain (A) UV powder dye, or may contain / not contain polarization.

[0133] Steps for making the method: Example

[0134] A. A lens comprising: a polymer material; and at least two filters incorporated into the polymer material of the lens, the two filters being combined to block most (A)UV light and selectively filtering blue and violet light according to a sharp-cut filter, the cut filter substantially blocking wavelengths less than 400 nm-455 nm. (Thin film)

[0135] Among these, several organic dyes include blue-absorbing organic dyes, whose blue light absorption peak has a center wavelength of 400nm-455nm (AB). The highest energy wavelength (B) of 420-455nm is filtered out. UV 400 dyes will absorb a portion of this 400-420nm range, making the 420-455nm range crucial. However, dyes in this region are easily absorbed, interfering with other color regions. Therefore, it is essential to use the correct solution casting, injection molding, or casting method and the correct dye, such as a narrow bandwidth (FWHM) 40nm dye. One or more dyes may be mixed. (Thin film lamination or mixed injection molding process)

[0136] The requirement to absorb at 400-470nm can also determine the appropriate mixing of two or more dyes.

[0137] B. A blue-blocking narrow-bandwidth dye polymer film with selective narrow-bandwidth wavelength attenuation (absorption), absorbing more than 80-99% of unwanted radiation in the range of approximately 400-430 nm, or approximately 85-95% of unwanted radiation in the range of approximately 430-455 nm. The blue-blocking functional film may be incorporated on top of the lens component, the functional film being approximately 0-0.7 mm thick and unground. In some desired formulations (half Rx), it may be desirable to employ a thicker, ground optical lens, with a total lens thickness of approximately 0.05-8.0 mm.

[0138] C. A high-contrast or enhanced-contrast functional polymer film comprising an organic dye, selectively narrow-bandwidth wavelength attenuation (absorption) of more than 20% for absorbing unwanted 570-590nm radiation, a high-contrast or enhanced-contrast functional polymer film with 0-0.7mm of unground surface on the upper lens portion, or a half-Rx thick optical lens with ground surface but not reaching the functional film surface, the total lens thickness being 0.05-8.0mm.

[0139] D. A functional polymer film comprising an IR organic dye, selectively narrow-bandwidth wavelength attenuation (absorption) of more than 60% in absorbing unwanted 800-1200nm radiation, an unground IR functional film of 0-0.7mm in the upper lens portion, or a ground but not reaching the surface of the functional film half-Rx thick optical lens, the total lens thickness being 0.05-8.0mm.

[0140] B+C+D FWHM

[0141] This application describes an eyeglass lens product composed of multilayer wafers, which may or may not include injection-molded thermoplastic or thermosetting plastic internal portions. The multilayer wafers act as blue light blockers to enhance contrast. An IR-absorbing layer is also included. The application further describes a method for obtaining the multilayer wafers. The full width at half maximum (FWHM) is less than 80 nm-100 nm, exhibiting high optical density filtering characteristics in a narrowly selected infrared wavelength range of approximately 750 nm-1400 nm.

[0142] Option 1: Photochromic.

[0143] Photochromic dyes are mixed into polyurethane (PU) adhesive and laminated between polymer films.

[0144] Example 1:

[0145] A coating containing tetranitroporphyrin compounds as functional dyes was prepared by mixing them in the following proportions, and then coated onto the surface of the inner glass lens by spin coating.

[0146] (1) 100.0 parts by mass of acrylic polyol containing 4-hydroxybutyl acrylate (manufactured by Rock Paint Co., Ltd.: Hyper Clear)

[0147] (2) The amount of polyisocyanate is 33.3 parts by mass.

[0148] (3) Cyclohexane is 16.7 parts by mass.

[0149] (4) Tetrazoporphyrin compound (manufactured by Yamada Chemical Industry Co., Ltd.: TAP-2) was 0.8 parts by mass.

[0150] (5) Silane coupling agent (manufactured by Chisso: Thyra Ace) 0.7 parts by weight. Option 2: Adhesive.

[0151] Optical adhesives are used to bond or join optical components together, or in optical systems for a wide range of optical applications. Optical adhesives can be used with curing lamps to ease or speed up the bonding process. Optical adhesives allow for precise positioning of optical components within a system by firmly securing them in the desired location. Optical adhesives reduce the need to purchase additional components by allowing for manual assembly or positioning of existing components.

[0152] Optical adhesives:

[0153] Optical adhesives are used to bond or join optical components together, or in optical systems for a wide range of optical applications. Optical adhesives can be used with curing lamps to ease or speed up the bonding process. Optical adhesives allow for precise positioning of optical components within a system by firmly securing them in the desired location. Optical adhesives reduce the need to purchase additional components by allowing for manual assembly or positioning of existing components.

[0154] 100% solid epoxy resin system, used as a structural adhesive or EK-93 type sealant.

[0155] Adhesive application is an essential process in many industrial technologies. Existing adhesives are specifically designed to meet a wide range of applications while maintaining a high degree of specialization. They simplify the bonding process and ensure high processing speeds and reliability.

[0156] Option 3: Coating

[0157] Coating methods: projection (screen), spraying, embossing, roller printing, dipping, and groove nozzle coating.

[0158] Option 4: Dye A. UV dye

[0159] Epolin

[0160] QCR

[0161] Exicton

[0162] B. Blue blocking dye

[0163] benzoxazole iodide

[0164] iodide

[0165] Indole chloride

[0166] Benzo[e]indole hexafluorophosphate

[0167] Benz[e]indole 4-benzenesulfonate methyl ester

[0168] Indole chloride

[0169] Indole tetrafluoroborate

[0170] Indole perchlorate

[0171] methyl benzenesulfonate

[0172] Indole bis(trifluoromethanesulfonyl)imide

[0173] tetrahydropyrimidin-4-olate

[0174] &Select from Epiolin QCR exciton

[0175] C. High-contrast dyes are available.

[0176] Yamada

[0177] Epolin

[0178] Exiction

[0179] D.IR dyes are available for selection.

[0180] Epolin

[0181] QCR

[0182] For example, IR oil-based soluble dyes may include tetraammonium structures, naphtholine, metal complexes, azo dyes, anthraquinones, secondary acid derivatives, ammonium dyes, perylene, anthraquinones, cyanines, isoaromatics, metal dithiones, oxadiazoles, phthalocyanines, spirotetraaryl diamines, triarylamines; hydrazine; polyacetylenic dyes; squaric acid cyanine dyes; indigoaniline; ammonium imide pigments; anionic compounds; Scare morpholino dyes; and inorganic oxides.

[0183] E. Water-soluble dyes are available for selection.

[0184] QCR

[0185] FEW

[0186] Some example dyes may include hydroxide, inner salt, sodium salt, benzoxazole hydroxide, inner salt, sodium salt, indium hydroxide, inner salt, sodium salt, triethylamine salt, indium hydroxide, inner salt, triethylamine salt, indium hydroxide, inner salt, sodium salt, indium hydroxide, inner salt, trisodium salt, benzo[e]indium hydroxide, inner salt, triethylamine salt, benzo[e]indium hydroxide, inner salt, trisodium salt.

[0187] Other examples may include C38 H46 Cl N2 06S2 Na, C43 H47 N2 06S2 Na, C44 H52 N3 06S3 Na, C38 H49 N3 06S4 Cl, C46 H51 N2 06S2 Cl, C52 H56 N3 06S3 Na, C20H26O5, C20H18, N4O3, C24H29N3O7, C32H4BrN2O2, C36H44BrN3O4, C33H42N2O5S, C43H53N3O7S, water-soluble cyanine dyes, inorganic dyes, and powder dyes.

[0188] F. Laser dyes are available for selection.

[0189] Epolin Laser Dye List

[0190]

[0191] G. Photochromic dyes are available for selection.

[0192] Examples of photochromic dyes include, but are not limited to, triarylmethane, stilbene, azabenzene, azone, oxygen-rich compounds, spiropyran, naphthyran, spiroxazine, quinones, etc.

[0193] Option 5: Polymers are available.

[0194] Water-soluble

[0195] PVA, PVB

[0196] It may include dimethyl sulfoxide (DMSO), glycerol, styrene-acrylic acid, pure acrylic emulsion, rosin plastic sizing agent, or other additives to help the solution form the desired film more easily.

[0197] Solvents are available for selection:

[0198] PET G Easter man

[0199] Other example polymers may include TAC, cellulose acetate, cellulose propionate, polyurethane, PVC, polyurethane silicone copolymer, acrylic acid, COP, tetrafluoroethylene polymer, PC, PP, PE, PET, polyethersulfone, polyetherimide, polyvinylidene fluoride, polyoxyethylene, nylon, and modified nylon.

[0200] Option 6: Organic solvents (oil-based) are available for selection.

[0201] 1,3-Dioxolane; Chlorobenzene; Chlorobenzene; Monochlorobenzene; 5-Chlorobenzotriazole; 5-chloro-1; 5-Chemicalbook-Chlorobenzotriazole; 6-chloro-1H-benzotriazole; Solvents; Dimethylacetamide; Chloroform; Tetrachloromethane; Carbon tetrachloride; Monochloromethane; Trichloroethylene; Triphenyl phosphate; Diphenyl phosphate; Methanol; Resorcinol; Tetraphenyl diphosphate; Acetone; Butanol; Butyl acetate; Butanol; Biphenyl diphenyl phosphate; Chloroform; MEK; EAC; IPA; MIBK; BCS; MCS; EAC; BAC; Cyclohexanone; Tetrahydrofuran; Ethers; Esters; Polyimide; Dimethylformamide; Polyvinyl alcohol; Methylcellulose; Starch derivatives; Gelatin; Methyl ethyl ketone; Tetrahydrofuran; and Dichloromethane.

[0202] Option 6-1: Water-based solvent, either water or a mixture of methanol and ethanol, can be used.

[0203] In some embodiments, various options, methods, processes, etc., can be used to create suitable glass with desired light transmittance (e.g., using film or injection molding or any other suitable process). A combination of injection molding and / or solution casting can be used for glass (e.g., eyeglasses). In one embodiment, a combination of dyes that absorb or block light in the visible range can be used. Dyes that absorb or block light in the infrared range can also be used. Other dyes with properties across a wide range of wavelengths in the full spectrum can also be used, depending on user preferences and design. Various combinations of film and / or injection-molded materials can provide benefits for manufacturing and the end user. Some example benefits include speed, efficiency, configurability of the manufacturing process and the end result.

[0204] In the example, dyes associated with significant solar ranges (e.g., on the Earth's surface) can be beneficially used for glass films, such as the blue light range (around 400 nm), the solar peak at around 580 nm, and the infrared range. Those skilled in the art will recognize that any combination of dyes associated with a variety of spectral ranges can be used.

[0205] Table 2 shows some example combinations. The type of dye is listed in the first row. EM1, EM2, EM3, EM4, EM5, EM6, and EM7 are example embodiments and possible process types for each dye. For example, Embodiment 1 (EMI) may include injection molding a 400nm dye and a 580nm dye onto a substrate and depositing an IR dye onto a film (e.g., laminating it onto the film). This film may be bonded to a substrate comprising the 400nm and 580nm dyes. In other embodiments, each dye may be deposited onto its own separate substrate, which is then bonded together. In other embodiments, each dye may be deposited onto its own film substrate via casting. In this way, one or more dyes may be included on a substrate bonded to one or more substrates; similarly, one or more dyes may be included on any combination of one or more films. Films, castings, and substrates may be combined in any order of operation. EM2-EM4 show other example combinations of injection molding and film combinations. The examples in Table 2 are merely illustrative, and those skilled in the art will recognize that any combination of dyes may be used in any combination of depositing dyes onto a substrate (film, glass, etc.). Those skilled in the art will recognize that any number of layers and any number of dyes can be used.

[0206] 0209]EM1 0210] Injection Molding 0211] Injection Molding 0212]Film 0213]EM2 0214]Film 0215] Injection Molding 0216]Film 0217]EM3 0218] Injection Molding 0219]Film 0220]Film 0221]EM4 0222]Thin film 0223]Film 0224]Thin film 0225]EM5 0226] Casting 0227]Film 0228]Film 0229]EM6 0230]Film 0231] Casting 0232]Film 0233]EM7 0234] Casting 0235] Casting 0236]Film

[0207] Table 2: Example Examples of Dye Combinations

[0208] In some examples, UV dyes can be combined. In other examples, UV dyes can be omitted. Any method for depositing dyes on a film can be used, including dyeing, impregnation, injection molding, extrusion, film coating, coating, etc.

[0209] Figures 7A to 7L Some example spectrometer plots using various example dye combinations are shown. Results can be produced by solution casting methods, but it will be recognized that other methods can be used. Unless otherwise stated, plots may use a Y-axis with "%T" or percentage of light transmittance; the X-axis may represent the wavelength of light in nanometers.

[0210] Figure 7A The image illustrates the spectrometer output 700a when using a blue dye (blue blocker) with near-infrared absorption properties and a contrast-enhancing dye. The spectrometer output shows little or no transmission in the UV range, a peak in the visible spectrum, and a trough in the near-infrared range.

[0211] Figure 7BThe illustration shows another spectrometer output 700b for a thin film using a blue dye (blue blocker) and a contrast-enhancing dye. The spectrometer output shows little or no transmission in the blue light range of approximately 400–430 nm, with a trough band at approximately 580 nm (approximately plus / minus 15 nm). Other examples that could provide similar results could include organic dyes that absorb NIR radiation or co-injection molded or gasket-cast substrate mixtures containing both blue blocking and contrast-enhancing dyes.

[0212] Figure 7C The figure illustrates another spectrometer output at 700c when using at least two effective functional dyes in the 420–700 nm range. The spectrometer output rises sharply at approximately 400 nm and dips slightly at approximately 570 nm.

[0213] Figure 7D The illustration shows another spectrometer output of 700d when the liquid coating technique includes inorganic dyes. The spectrometer output shows that the dyes absorb less NIR radiation and produce a higher level of haze.

[0214] Figure 7E and Figure 7F The figure illustrates the 700e-f output of other spectrometers when the dye mixture is melted at temperatures above 800 degrees Celsius. The results show that in the 760-1400 nm range, using higher temperatures does not produce the result of absorbing more NIR radiation.

[0215] Figure 7G The illustration shows the output of another spectrometer at 700g when creating a blue blocking agent effective in the 400-430nm range and a contrast-enhancing dye effective in the 580nm range (+ / -15nm).

[0216] Figure 7H The illustration shows another spectrometer output at 700h when lenses are created using two or more functional narrowband dyes from organic NIR materials via injection molding. The output shows higher transmission at approximately 700 nm, with attenuation at the edges.

[0217] Figure 7I The illustration shows another spectrometer output 700i produced using a combination of solution casting (film formation) and plastic injection molding. In this example, the film contains 0.5% organic NIR dye; the plastic contains 0.05% blue blocking dye effective in the 400–455 nm range and 0.03% contrast-enhancing dye effective in the 570 nm range (+ / - 15 nm). The results show good output blocking of high levels of light (or low transmittance) at approximately 400 nm, 570 nm, and within the NIR range.

[0218] Figure 7JThe figure illustrates another spectrometer output 700j produced using different concentrations of organic NIR dyes: 0.15% (“1”), 0.20% (“2”), 0.42% (“3”), and 0.60% (“4”). The graphs show that, at wavelength, the lowest concentration (“1”), as the top curve, has higher transmittance (or lowest absorption); the second lowest concentration (“2”), as the second highest curve, has higher transmittance (or lower absorption); the next lowest concentration (“3”), as the second lowest curve, has the second lowest transmittance; and the highest concentration (“4”), as the lowest curve, has the lowest transmittance (or highest absorption).

[0219] Figure 7K The figure shows additional spectrometer outputs at 700 k⁻¹, comparing the differences between using a non-vacuum coating process and using a vacuum coating process. The results show that the vacuum coating process increases the absorption of NIR radiation compared to the non-vacuum coating process.

[0220] The above description is provided to enable those skilled in the art to practice the various embodiments described herein. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments. Therefore, the claims are not intended to be limited to the embodiments shown and described herein, but are given the full scope consistent with the language of the claims, wherein, unless specifically stated, reference to a singular element is not intended to mean "one and only one," but rather "one or more." All structural and functional equivalents of the elements of the various embodiments described throughout this disclosure (known or later to those skilled in the art) are expressly incorporated herein by reference, and it is intended that the claims include such equivalents. Furthermore, nothing disclosed herein is intended to be made public, whether or not such disclosure is expressly recited in the claims.

Claims

1. A method for manufacturing spectacle lenses using a solution casting process, the method comprising: Provide a first soluble polymer solution; provide a first dye solution comprising at least one dye, wherein the at least one dye in the first dye solution has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; add the first dye solution to the first soluble polymer solution to form a first dyeing solution; The solution is cast into the first dyeing solution to form a first thin film; The method includes providing a second soluble polymer solution; providing a second dye solution comprising at least one dye, wherein the at least one dye in the second dye solution has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; adding the second dye solution to the second soluble polymer solution to form a second dyeing solution to form a second film; or casting the second dyeing solution onto the first film to form two films; and laminating or casting the two films onto the spectacle lens. Further comprising one of the following: (a) providing a compound for injection molding; adding a third dye to the compound, wherein at least one of the third dyes has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; and injection molding the compound to form the spectacle lens, wherein the two thin films are laminated or cast onto the spectacle lens formed by injection molding the compound; Alternatively, (b) a third soluble polymer solution is provided; a third dye solution is added to the third soluble polymer solution to form a third dyeing solution, the third dyeing solution comprising at least one dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; the third dyeing solution is used to form a third film or cast onto the two films to form a three-layer film by solution casting; the lamination or casting of the two-layer film or the three-layer film includes laminating or casting the three-layer film onto the spectacle lens; Among them, the dyes that attenuate 400nm-455nm violet-blue light, 570nm-595nm green-yellow light and 760nm-2000nm infrared (IR) light are present simultaneously in one or a combination of the first dye solution, the second dye solution, the third dye solution or the third dye solution.

2. The method of claim 1, wherein the first dye solution comprises a third dye, the third dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light.

3. The method of claim 1, wherein the first dye solution or the second dye solution comprises a water-based dye or an oil-based dye.

4. The method of claim 1, wherein the spectacle lens comprises glass or a polymer material.

5. The method of claim 1, further comprising providing a tinted adhesive, wherein the lamination or casting of the two thin films onto the spectacle lens is based on the lamination using the tinted adhesive.

6. A method for manufacturing spectacle lenses using a solution casting process, the method comprising: Provide a first soluble polymer solution; provide a first dye solution comprising at least one dye, wherein the at least one dye in the first dye solution has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; add the first dye solution to the first soluble polymer solution to form a first dyeing solution; The first dyeing solution is poured to form film A; Provide compounds for injection molding; A second dye is added to the compound, wherein at least one of the second dyes has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; the compound is injection molded to form a substrate. And, the thin film A is laminated or cast onto the substrate to form the eyeglass lens; Further comprising: providing a second soluble polymer solution; adding a third dye solution to the second soluble polymer solution to form a second dyeing solution, wherein at least one dye in the second dyeing solution has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; casting the second dyeing solution to form a second thin film; and laminating or casting the second thin film onto the spectacle lens; Among them, the dyes that attenuate 400nm-455nm violet-blue light, 570nm-595nm green-yellow light and 760nm-2000nm infrared (IR) light are present simultaneously in one or a combination of film A, substrate or second film.

7. The method of claim 6, wherein the first dye solution comprises a third dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light.

8. The method of claim 6, wherein the first dye solution or the third dye solution comprises a water-based dye or an oil-based dye.

9. The method of claim 6, wherein the compound comprises a glass or polymer material.

10. The method of claim 6, further comprising providing a dyeing adhesive, wherein laminating or casting the film onto the substrate is based on lamination using the dyeing adhesive.

11. A spectacle lens manufactured using a solution casting process, the spectacle lens comprising: A first thin film is formed by casting a first dyeing solution, wherein the first dyeing solution includes at least one dye, and the at least one dye has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light. The second layer film is formed by casting a second dyeing solution into a solution or by casting the solution onto a first layer film. The second dyeing solution includes at least one dye that has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light. A substrate is also provided for casting or laminating the first and second layers film to form the spectacle lens. Further comprising one of the following: (a) a third film layer formed by casting a third dyeing solution onto the second film layer, the third dyeing solution comprising at least one dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; or, (b) a third film layer formed by injection molding, the third film layer comprising at least one dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light; Among them, dyes that attenuate 400nm-455nm violet-blue light, 570nm-595nm green-yellow light and 760nm-2000nm infrared (IR) light are present simultaneously in one or a combination of the first, second or third layers.

12. The spectacle lens of claim 11, wherein the first dyeing solution or the second dyeing solution comprises a water-based dye or an oil-based dye.

13. The spectacle lens of claim 11, wherein the spectacle lens comprises glass or a polymer material.

14. The spectacle lens of claim 11, further comprising a tinted adhesive, wherein the lamination or casting is based on lamination using the tinted adhesive.

15. A spectacle lens manufactured using a solution casting process, the spectacle lens comprising: A first layer is formed by casting a dyeing solution onto a first film, the dyeing solution comprising at least one dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light. And a second layer made by injection molding a compound comprising at least one dye to form a dyeing mold, wherein the at least one dye has the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light. Further comprising: a second layer formed by casting a third dyeing solution onto the first film, the third dyeing solution comprising at least one dye having the property of attenuating 400nm-455nm violet-blue light, 570nm-595nm green-yellow light, or 760nm-2000nm infrared (IR) light, and including a dyeing binder between the first layer and the second layer; Among them, dyes that attenuate 400nm-455nm violet-blue light, 570nm-595nm green-yellow light and 760nm-2000nm infrared (IR) light are present simultaneously in one or a combination of the first, second or third layers.

16. The spectacle lens of claim 15, wherein the dyeing solution comprises a water-based dye or an oil-based dye.

17. The spectacle lens of claim 15, wherein the spectacle lens comprises glass or a polymer material.

Images