WO2021109445A1 - 一种折射率1.50的防蓝光防红外树脂镜片及其制备方法 - Google Patents

一种折射率1.50的防蓝光防红外树脂镜片及其制备方法 Download PDF

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WO2021109445A1
WO2021109445A1 PCT/CN2020/088781 CN2020088781W WO2021109445A1 WO 2021109445 A1 WO2021109445 A1 WO 2021109445A1 CN 2020088781 W CN2020088781 W CN 2020088781W WO 2021109445 A1 WO2021109445 A1 WO 2021109445A1
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curing
infrared
modifier
lens
resin
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PCT/CN2020/088781
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English (en)
French (fr)
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王传宝
严清波
黄健
施亮亮
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江苏康耐特光学有限公司
上海康耐特光学有限公司
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Priority to BR112021010077A priority Critical patent/BR112021010077A2/pt
Priority to US17/316,479 priority patent/US20210263197A1/en
Publication of WO2021109445A1 publication Critical patent/WO2021109445A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method
    • G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • B29D11/00442—Curing the lens material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00634—Production of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • B29D11/00913—Applying coatings; tinting; colouring colouring or tinting full body; edge-to-edge
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/002—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials
    • G02B1/007—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials made of negative effective refractive index materials
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/002—Making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/38—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0031—Refractive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses

Definitions

  • the invention belongs to the field of resin lenses, and more specifically, relates to an anti-blue and infrared resin lens with a refractive index of 1.50 and a preparation method thereof.
  • CR39 resin lens with a refractive index of 1.50 and an Abbe number of 58, is the lens with the highest Abbe number among all resin lenses. It is loved by foreign users and has excellent coloring properties. Sunglass lenses of different colors can be prepared. , The annual demand continues to rise. If the anti-blue and anti-near infrared functions are added, it will definitely be recognized by the market.
  • the last patent CN107678179A "A kind of anti-infrared resin lens and its preparation method" applied by our company.
  • the purpose of the present invention is to overcome the above shortcomings, provide an anti-blue and anti-infrared resin lens with a refractive index of 1.50 and provide its preparation method, while the CR39 monomer is blended and modified, it solves the problem of the initiator with excessive oxidation performance. Oxidizes the transition metal in the low-valence state of the near-infrared absorber, which causes the phenomenon of lens fogging, and also solves the problem of the initiator oxidizing the blue light absorber. At the same time, it has the function of preventing blue light and infrared, and also has good dyeing performance.
  • the present invention provides an anti-blue and infrared resin lens with a refractive index of 1.50, the lens comprising the following components: 100 parts by weight of CR39 resin monomer, 0.5-5 parts by weight of initiator, and 1.0216-30.6 parts by weight of additives
  • the additives include anti-infrared absorbers, blue light absorbers, and hardness modifiers, with a mass ratio of 0.0005 to 0.5: 0.001 to 10:1 to 10
  • the initiator is benzoyl peroxide or peroxide Diisopropylbenzene or 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane.
  • the anti-blue and infrared resin lens with a refractive index of 1.50 of the present invention preferably includes 100 parts by weight of CR39 resin monomer, 1-3 parts by weight of initiator, and 2.216-19.33 parts by weight of additives, wherein the additives include anti- The mass ratio of infrared absorber, blue light absorber and hardness modifier is 0.001-0.3:0.01-5:2-8.
  • the additives further include a tinting modifier, and the mass ratio of the tinting modifier to the CR39 resin monomer is 0.0001 to 0.1:100, and preferably the mass ratio is 0.005 to 0.03:100.
  • the dyeing modifier may be a siloxane-based leveling and dispersing agent, preferably a polyether-modified polyorganosiloxane-based leveling and dispersing agent.
  • the CR39 resin monomer can be diethylene glycol allyl carbonate and its polymer mixture, wherein the content of monopolyethylene glycol allyl carbonate is 80-90%, and the rest are dimers and trimers.
  • the anti-infrared absorber can be prepared by uniformly dispersing rare earth element oxides with a diameter of 10-50 nm in ethylene-butyl acrylate, and the concentration of the rare earth element oxides is 0.5% to 5%.
  • the blue light absorber can be benzophenones, such as 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2-hydroxy-4-dodecanophenone One or more of alkoxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone and 2,2'-dihydroxy-4,4'-dimethoxybenzophenone .
  • the aforementioned hardness modifier may be one or two of methyl methacrylate or vinyl acetate.
  • the additive of the present invention may also include an anti-shrinkage modifier and a self-opening modifier.
  • the mass ratio of the anti-shrinkage modifier, the self-opening modifier and the resin monomer is 0.01-5:0.01-5 : 100, preferably the mass ratio is 0.1-3:0.1-3:100.
  • the anti-shrink modifier may be a 2-functional or 6-functional polyurethane acrylate, and the self-opening modifier may be a pentaerythritol triacrylate prepolymer.
  • the anti-blue and infrared resin lens with a refractive index of 1.50 of the present invention is prepared by the following method: pre-dissolve the blue light absorber in the resin monomer at 40-55°C, add the anti-infrared absorber and change the hardness after cooling down to room temperature. The sexing agent is dissolved, and then the initiator is added, mixed evenly, poured into the mold, and then thermosetting molding is performed.
  • the method for preparing the above-mentioned anti-blue and infrared resin lens with a refractive index of 1.50 includes the following steps:
  • step (1) pouring material: the uniformly mixed material in step (1) is filtered through a 5 ⁇ m filter and then poured into the glass mold through the caster, and sealed with tape;
  • step (3) First curing: Put the mold poured in step (2) into the curing furnace for one-time curing and molding.
  • the curing time and temperature curve are: the initial temperature is 25-30°C, and the temperature is raised to 60-65°C in 1 hour. , 1h heated to 80-85°C, 80-85°C maintained for 20h, 16h heated to 90-95°C, 3h heated to 100-105°C, 0.5h cooled to 75-80°C.
  • the curing curve is determined according to the initiator, and the heating and cooling processes are both at a uniform speed.
  • Mold opening, turning, and cleaning mold opening after curing and molding, and surface cleaning after chamfering with an edging machine
  • Second curing the cleaned lens is put into a curing oven again for secondary curing, the curing temperature is 105-110°C, and the time is 2 to 2.5h.
  • the anti-blue and infrared resin lens with a refractive index of 1.50 that needs to be dyed according to the present invention is prepared by the following method: pre-dissolving a blue light absorber in the resin monomer at 40-55°C, and adding anti-infrared absorption after cooling down to room temperature
  • the agent, hardness modifier and dyeing modifier are dissolved, and then the initiator is added, mixed evenly and poured into the mold, and then thermosetting is performed, and dyeing is performed after the thermosetting is completed.
  • the method for preparing the above-mentioned anti-blue and anti-infrared resin lens with a refractive index of 1.50 that needs to be dyed includes the following steps:
  • step (1) pouring material: the uniformly mixed material in step (1) is filtered through a 5 ⁇ m filter and then injected into the glass mold through the caster, and sealed with tape;
  • step (3) First curing: Put the mold poured in step (2) into the curing furnace for one-time curing and molding.
  • the curing time and temperature curve are: the initial temperature is 25-30°C, and the temperature is raised to 60-65°C in 1 hour. , 1h heated to 80-85°C, 80-85°C maintained for 20h, 16h heated to 90-95°C, 3h heated to 100-105°C, 0.5h cooled to 75-80°C.
  • the curing curve is determined according to the initiator, and the heating and cooling processes are both at a uniform speed.
  • Mold opening, turning, and cleaning mold opening after curing and molding, and surface cleaning after chamfering with an edging machine
  • Second curing the cleaned lens is put into a curing oven again for secondary curing, the curing temperature is 105-110°C, and the time is 2 to 2.5h.
  • a hardened layer and an antireflection and antireflection film layer can be plated on the surface of the lens.
  • the hardened layer is a hardened layer that is plated on the surface of the lens by dipping.
  • the antireflection and antireflection film The layer is to use a vacuum coating method to coat silicon dioxide, zirconium dioxide, indium tin oxide and a waterproof layer on the surface of the lens.
  • the resin lens prepared by the present invention has both blue light absorption effect and near-infrared absorption effect. It can also be dyed according to requirements to make it have the effect of sunglasses and ensure the quality of the lens. It is a new type of multifunctional resin lens.
  • the present invention selects a specific initiator to synthesize a resin lens with a refractive index of 1.50, which can not only ensure the refractive index and Abbe number of the CR39 resin lens, but also solve the fogging phenomenon of the anti-infrared resin lens.
  • the selected components and proportions of the present invention make the prepared resin lens have an absorption rate of 50-90% in the near infrared 760-1400nm range, and the anti-blue light performance of the 410nm band pass rate is less than 1%, within the range of 380-500nm
  • the blue light absorption rate of the lens is 10-30%, and the visible light transmittance of the lens can reach 15-16% after dyeing.
  • the present invention raises the temperature in advance to dissolve additives with high viscosity, then lowers to room temperature to dissolve other additives, and finally adds an initiator to avoid problems such as the surface shape of the lens and ensure the quality of the lens.
  • CR39 resin monomers are diethylene glycol allyl carbonate and its polymer mixture, of which the content of monoethylene glycol allyl carbonate is 80-90%, and the rest are dimers and trimers (ACOMN, Italy) , Model 7AX);
  • the initiator is benzoyl peroxide (Shanghai Haiqu Chemical Co., Ltd.)
  • concentration of the rare earth element oxide Is 2%;
  • the blue light absorber is 2-hydroxy-4-methoxybenzophenone (Jiangsu Wuxi Henghui Chemical Co., Ltd., UV-9);
  • Hardness modifier is methyl methacrylate (Degussa);
  • the anti-shrink modifier is a 2-functional polyurethane acrylate (Taiwan Changxing, DR-U079);
  • the self-opening modifier is pentaerythritol triacrylate prepolymer (Taiwan Changxing, EM-235).
  • An anti-blue and infrared resin lens with a refractive index of 1.50 including 100kg of CR39 resin monomer, 1.2kg of initiator, 50g of anti-infrared absorber, 500g of blue light absorber, 1.5kg of hardness modifier, and 90g of anti-shrink modifier, Self-opening modifier 90g.
  • the lens preparation steps are as follows:
  • step (1) pouring material: the uniformly mixed material in step (1) is filtered through a 5 ⁇ m filter and then poured into the glass mold through the caster, and sealed with tape;
  • step (3) First curing: Put the mold poured in step (2) into the curing furnace for one-time curing and molding.
  • the curing time and temperature curve are: the initial temperature is 25-30°C, and the temperature is raised to 60-65°C in 1 hour. , 1h heating up to 80 ⁇ 85°C, 80 ⁇ 85°C for 20h, 16h heating to 90 ⁇ 95°C, 3h heating to 100 ⁇ 105°C, 0.5h cooling to 75 ⁇ 80°C, the heating and cooling processes are all at a constant speed.
  • Mold opening, turning, and cleaning mold opening after curing and molding, and surface cleaning after chamfering with an edging machine
  • Second curing the cleaned lens is put into the curing oven again for secondary curing, the curing temperature is 105 ⁇ 110°C, and the time is 2 ⁇ 2.5h;
  • CR39 resin monomers are diethylene glycol allyl carbonate and its polymer mixture, of which the content of monoethylene glycol allyl carbonate is 80-90%, and the rest are dimers and trimers (ACOMN, Italy) , Model 7AX);
  • the initiator is dicumyl peroxide (Jinan Guochen Taifu Chemical Co., Ltd.)
  • concentration of the rare earth element oxide Is 2%;
  • the blue light absorber is 2-hydroxy-4-n-octyloxybenzophenone (Nanjing Jingtianwei Chemical Co., Ltd., UV531);
  • Hardness modifier is vinyl acetate (Shanghai Jinjinle Industrial Co., Ltd.);
  • Dyeing modifier is polyether modified polyorganosiloxane leveling and dispersing agent (Guangdong Leibang Advanced Materials Co., Ltd., RB-1181)
  • the anti-shrink modifier is a 6-functional polyurethane acrylate (Taiwan Changxing, 6103);
  • the self-opening modifier is pentaerythritol triacrylate prepolymer (Taiwan Changxing, EM-235).
  • An anti-blue and infrared resin lens with a refractive index of 1.50 including 100kg of CR39 resin monomer, 3kg of initiator, 300g of anti-infrared absorber, 5kg of blue light absorber, 8kg of hardness modifier, 30g of dyeing modifier, anti-shrinkage modification Sexual agent 3kg, self-opening modifier 3kg.
  • the lens preparation steps are as follows:
  • step (1) pouring material: the uniformly mixed material in step (1) is filtered through a 5 ⁇ m filter and then poured into the glass mold through the caster, and sealed with tape;
  • step (3) First curing: Put the mold poured in step (2) into the curing furnace for one-time curing and molding.
  • the curing time and temperature curve are: the initial temperature is 25-30°C, and the temperature is raised to 60-65°C in 1 hour. , 1h heating up to 80 ⁇ 85°C, 80 ⁇ 85°C for 20h, 16h heating to 90 ⁇ 95°C, 3h heating to 100 ⁇ 105°C, 0.5h cooling to 75 ⁇ 80°C, the heating and cooling processes are all at a constant speed.
  • Mold opening, turning and cleaning mold opening after curing and molding, and use an edge grinding machine to chamfer the edge and then clean the surface;
  • Second curing the cleaned lens is put into the curing oven again for secondary curing, the curing temperature is 105 ⁇ 110°C, and the time is 2 ⁇ 2.5h;
  • CR39 resin monomer is diethylene glycol allyl carbonate and its polymer mixture.
  • the content of monopolyethylene glycol allyl carbonate is 80-90%, and the rest are dimers and trimers (ACOMN, Italy) , Model 7AX);
  • the initiator is 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane (Tianjin Akzo Nobel Peroxide Co., Ltd.)
  • concentration of the rare earth element oxide Is 2%;
  • the blue light absorber is 2-hydroxy-4-dodecyloxybenzophenone (Shanghai Tongjin Chemical Co., Ltd., UV-1200);
  • Hardness modifier is methyl methacrylate (Degussa);
  • Dyeing modifier is polyether modified polyorganosiloxane leveling and dispersing agent (Guangdong Leibang Advanced Materials Co., Ltd., RB-1181)
  • the anti-shrink modifier is a 2-functional polyurethane acrylate (Taiwan Changxing DR-U079);
  • the self-opening modifier is pentaerythritol triacrylate prepolymer (Taiwan Changxing EM-235).
  • An anti-blue and infrared resin lens with a refractive index of 1.50 including 100kg of CR39 resin monomer, 1.5kg of initiator, 50g of anti-infrared absorber, 500g of blue light absorber, 3kg of hardness modifier, 5g of dyeing modifier, anti-shrinkage Modifier 500g, self-opening modifier 500g.
  • the lens preparation steps are as follows:
  • step (1) pouring material: the uniformly mixed material in step (1) is filtered through a 5 ⁇ m filter and then poured into the glass mold through the caster, and sealed with tape;
  • step (3) First curing: Put the mold poured in step (2) into the curing furnace for one-time curing and molding.
  • the curing time and temperature curve are: the initial temperature is 25-30°C, and the temperature is raised to 60-65°C in 1 hour. , 1h heating up to 80 ⁇ 85°C, 80 ⁇ 85°C for 20h, 16h heating to 90 ⁇ 95°C, 3h heating to 100 ⁇ 105°C, 0.5h cooling to 75 ⁇ 80°C, the heating and cooling processes are all at a constant speed.
  • Mold opening, turning, and cleaning mold opening after curing and molding, and surface cleaning after chamfering with an edging machine
  • Second curing the cleaned lens is put into the curing oven again for secondary curing, the curing temperature is 105 ⁇ 110°C, and the time is 2 ⁇ 2.5h;
  • Dip coating is used to coat the surface of the lens with a dyeable and hard layer; the surface of the lens is coated with silicon dioxide, zirconium dioxide, indium tin oxide and a waterproof layer by the vacuum coating method, that is, antireflection and antireflection ⁇ Film layer.
  • a resin lens, the initiator uses tert-butyl peroxy-2-ethylhexanoate, and the remaining materials and preparation methods are the same as in Example 3.
  • a resin lens, the anti-infrared absorber adopts the model 1122 infrared absorber from FEW Company in Germany, and the other materials and preparation methods are the same as in Example 3.
  • a resin lens without the addition of anti-infrared absorber, and the remaining materials and preparation methods are the same as in Example 3.
  • a resin lens including 100kg of CR39 resin monomer, 10kg of initiator, 0.3g of anti-infrared absorber, 5g of blue light absorber, 1kg of hardness modifier, 1g of dyeing modifier, 5g of anti-shrink modifier, self-opening mold Modifier 5g.
  • the type and model of the raw materials of the comparative example are the same as in Example 3, and the preparation method is also the same as in Example 3.
  • the anti-blue light performance is tested by TM-3; the infrared absorption rate is tested by the optical pass instrument; the hardness is tested by the Barcol hardness tester; the qualified lens in the table only means that the lens has no spots, damage, surface shape, garbage, hair, cracks. Side issue.
  • Comparative Examples 1, 2 and 6 According to the data in Table 1, it can be seen from Comparative Examples 1, 2 and 6, that the use of different initiators or incorrect initiator ratios can cause severe fogging of the lens or even direct failure to form.
  • the lens of the present invention can avoid lens fogging, and at the same time It has good optical properties; through Comparative Example 3 and Comparative Example 4, it can be seen that the lens of the present invention can effectively absorb infrared light, and the infrared absorption rate is much higher than that of ordinary infrared absorbers; through Comparative Example 5, it can be seen that the present invention adds dyeing
  • the modifier can ensure that the lens is dyed uniformly and the lens is not flowery. It can also be seen from the various examples and comparative examples that different additives will have an impact. While ensuring that certain additives improve their performance, attention should also be paid Whether it affects other performance.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Optical Filters (AREA)
  • Eyeglasses (AREA)
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Abstract

一种折射率1.50的防蓝光防红外树脂镜片及其制备方法，镜片包括以下组分：CR39树脂单体100重量份，引发剂0.5～5重量份，添加剂1.0216～30.6重量份，其中，添加剂包括防红外吸收剂、蓝光吸收剂、硬度改性剂，质量比为0.0005～0.5：0.001～10：1～10，引发剂为过氧化苯甲酰或过氧化二异丙苯或1,1-二叔丁基过氧化-3,3,5-三甲基环己烷。树脂镜片既有蓝光吸收效果，又有近红外吸收效果，还可以根据需求进行染色使其具备太阳镜的效果，也能保证镜片质量。

Description

一种折射率1.50的防蓝光防红外树脂镜片及其制备方法 技术领域
本发明属于树脂镜片领域，更具体地，涉及一种折射率为1.50的防蓝光防红外树脂镜片及其制备方法。
背景技术
随着越来越多的电子产品被广泛使用在人们的日常生活中，包括阅读、通讯和休闲娱乐。这些在给人类带来简便、快速和方便的同时，无形的杀手对人类的伤害也在同时进行：这些数码设备源源不断地发射出短波高能的光线，直接对我们的眼睛造成了很大的压力。通过研究表明，波长380～500nm范围内的蓝光，尤其是波长415～455nm范围内的蓝光严重影响了人类身心健康。频繁或长时间使用这些数码设备会引起视觉模糊、引发眩光，导致视觉疲劳和诱发泪水流出等征兆，而且还会引起头部、颈部和背部疼痛，这一点在美国视光学协会首席执行官迈克·戴利的《数码眼疲劳的报告》中得到证实。另外，已经知道太阳辐射中10％是紫外光能量，40％左右是可见光，剩余50％左右全部是红外光。一直以来，人们对紫外线的防护非常重视，而对可见光和红外线(特别是近红外短波)却疏于防范。近红外光具有很强的穿透能力，现有镜片材料对其吸收很小，结果大量的红外光能够照射或者被反射到人眼中。近红外光可到达眼底，主要被视网膜吸收；中远红外光和远红外光以眼角膜吸收为主，不能到达眼底。因此，同时需要具备防止蓝光和近红外线伤害的多功能树脂镜片会成为市场的热点。
CR39树脂镜片，折射率为1.50，阿贝系数58，是所有树脂镜片中阿贝系数最高的镜片，深受国外用户的喜爱，而且其具有优异的上色性能，可 以制备得到不同颜色的太阳镜片，每年需求量不断上升。如果再加上防蓝光和防近红外的功能，一定会得到市场的认可。在我公司申请的上一篇专利CN107678179A《一种防红外树脂镜片及其制备方法》其在制备1.50树脂镜片时，由于其使用的引发剂是过氧化二碳酸二异丙酯，其氧化性能太强，会氧化少量防红外吸收剂中的低价位的过渡金属，导致最终的镜片中存在一定的雾状出现；另外，这个引发剂也会氧化防蓝光吸收剂，导致其蓝光吸收性能下降不能达到防蓝光性能的要求，且镜片颜色发黄，可见光透过率下降。所以，需要寻找另外一种氧化性能低，不能影响且可以引发CR39单体的引发剂。目前，全世界公认得只有过氧化二碳酸二异丙酯才能催化CR39单体，新的引发剂必然要求对CR39单体进行部分改性工作，否则该引发剂不能引发CR39单体或者导致镜片硬度不够，还会影响镜片的染色性能。
发明内容
本发明的目的是克服以上不足，提供一种折射率为1.50的防蓝光防红外树脂镜片并提供其制备方法，对CR39单体进行共混改性的同时，解决了氧化性能过强的引发剂氧化近红外吸收剂低价态过渡金属，从而引起镜片雾化的现象，也解决了引发剂氧化蓝光吸收剂的问题，同时具备防蓝光防红外的功能，还可兼备良好的染色性能。
为了实现上述目的，本发明提供一种折射率1.50的防蓝光防红外树脂镜片，所述镜片包括以下组分：CR39树脂单体100重量份，引发剂0.5～5重量份，添加剂1.0216～30.6重量份，其中，所述添加剂包括防红外吸收剂、蓝光吸收剂、硬度改性剂，质量比为0.0005～0.5：0.001～10：1～10，所述引发剂为过氧化苯甲酰或过氧化二异丙苯或1,1-二叔丁基过氧化-3,3,5-三甲基环己烷。
本发明所述折射率1.50的防蓝光防红外树脂镜片，优选组分为：CR39 树脂单体100重量份，引发剂1～3重量份，添加剂2.216～19.33重量份，其中，所述添加剂包括防红外吸收剂、蓝光吸收剂、硬度改性剂，质量比为0.001～0.3：0.01～5：2～8。
上述镜片需要染色的，所述添加剂还包括染色改性剂，所述染色改性剂与CR39树脂单体的质量比为0.0001～0.1：100，优选质量比为0.005～0.03：100。所述染色改性剂可以为硅氧烷类流平分散剂，优选为聚醚改性聚有机硅氧烷类流平分散剂。
上述CR39树脂单体可以为二甘醇碳酸烯丙酯及其多聚体混合物，其中一聚二甘醇碳酸烯丙酯的含量为80～90％，其余为二聚体和三聚体。
上述防红外吸收剂可以为直径10～50nm的稀土元素氧化物在乙烯-丙烯酸丁酯中分散均匀制备得到，稀土元素氧化物的浓度为0.5％～5％。
上述蓝光吸收剂可以为二苯甲酮类，如2-羟基-4-甲氧基二苯甲酮，2-羟基-4-正辛氧基二苯甲酮，2-羟基-4-十二烷氧基二苯甲酮，2-羟基-4-苄氧基二苯甲酮和2,2'-二羟基-4,4'-二甲氧基二苯甲酮中的一种或者多种。
上述硬度改性剂可以为甲基丙烯酸甲酯或者醋酸乙烯酯中的一种或者两种。
本发明所述添加剂还可以包括抗收缩改性剂和自开模改性剂，所述抗收缩改性剂、自开模改性剂与树脂单体的质量比为0.01～5：0.01～5：100，优选质量比为0.1～3：0.1～3：100。所述抗收缩改性剂可以为2官能团或者6官能团的聚氨酯丙烯酸酯，自开模改性剂可以为季戊四醇三丙烯酸酯预聚体。
本发明所述折射率1.50的防蓝光防红外树脂镜片，是通过以下方法制得的：在树脂单体中40～55℃预先溶解蓝光吸收剂，降至常温后加入防红外吸收剂和硬度改性剂溶解，再加入引发剂，混合均匀后浇注入模具，然后进行热固成型。
上述折射率1.50的防蓝光防红外树脂镜片的制备方法，包括以下步骤：
(1)配料：在树脂单体中升温至40℃预先溶解蓝光吸收剂，若添加抗收缩改性剂和自开模改性剂需在这一过程中添加，半小时后降温至常温25℃左右再依次加入防红外吸收剂、硬度改性剂，若添加染色改性剂可在这一过程中添加，最后再加入引发剂，真空混合1～2小时；
(2)浇料：将步骤(1)混合均匀的料经过5μm的过滤器过滤后通过浇料器注入玻璃模具中，使用胶带密封；
(3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃。该固化曲线是根据引发剂确定的，升温及降温过程均为匀速。
(4)开模、车边、清洗：固化成型后开模，并使用磨边机倒边后再进行表面清洗；
(5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h。
本发明所述的需要染色的折射率1.50的防蓝光防红外树脂镜片，是通过以下方法制得的：在树脂单体中40～55℃预先溶解蓝光吸收剂，降至常温后加入防红外吸收剂、硬度改性剂和染色改性剂溶解，再加入引发剂，混合均匀后浇注入模具，然后进行热固成型，热固完成后进行染色。
上述需要染色的折射率1.50的防蓝光防红外树脂镜片的制备方法，包括以下步骤：
(1)配料：在树脂单体中升温至40℃预先溶解蓝光吸收剂，若添加抗收缩改性剂和自开模改性剂需在这一过程中添加，半小时后降温至常温25℃左右再依次加入防红外吸收剂、硬度改性剂和染色改性剂，最后再加入引发剂，真空混合1～2小时；
(2)浇料：将步骤(1)混合均匀的料经过5μm的过滤器过滤后通过 浇料器注入玻璃模具中，使用胶带密封；
(3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃。该固化曲线是根据引发剂确定的，升温及降温过程均为匀速。
(4)开模、车边、清洗：固化成型后开模，并使用磨边机倒边后再进行表面清洗；
(5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h。
(6)如需要染色，经过二次固化成型的镜片加入染色槽中，85～95℃染色半小时。
上述制备步骤完成后，可在镜片表面镀制加硬层和增透减反射膜层，所述加硬层为使用浸涂的方法在镜片表面镀制加硬层，所述增透减反射膜层为使用真空镀膜的方法在镜片表面镀制二氧化硅、二氧化锆、氧化铟锡以及防水层。
与现有技术相比，本发明的有益效果为：
(1)本发明制备的树脂镜片，既有蓝光吸收效果，又有近红外吸收效果，还可以根据需求进行染色使其具备太阳镜的效果，也能保证镜片质量，是一种新型的多功能树脂镜片。
(2)本发明选择了特定的引发剂来合成折射率为1.50的树脂镜片，既能保证CR39树脂镜片的折射率和阿贝系数，还可以解决防红外树脂镜片起雾的现象。
(3)本发明选用的组分及配比使制备出的树脂镜片在近红外760～1400nm范围内吸收率达到50～90％，防蓝光性能410nm波段通过率小于1％，380～500nm范围内的蓝光吸收率为10～30％，镜片染色后可见光透 过率能达到15～16％。
(4)本发明预先升温溶解粘度大的添加剂，然后降至常温溶解其他添加剂，最后加入引发剂，避免镜片出现面型等问题，保证镜片质量。
具体实施方式
下面将结合具体实施例更详细地描述本发明的优选实施方式。
实施例1
CR39树脂单体为二甘醇碳酸烯丙酯及其多聚体混合物，其中一聚二甘醇碳酸烯丙酯的含量为80～90％，其余为二聚体和三聚体(意大利ACOMN公司，型号7AX)；
引发剂为过氧化苯甲酰(上海海曲化工有限公司))
防红外吸收剂为直径10～50nm的稀土元素氧化物(包括质量比Sm 2O 3：Eu 2O 3＝3:1)在乙烯-丙烯酸丁酯中分散均匀制备得到，稀土元素氧化物的浓度为2％；
蓝光吸收剂为2-羟基-4-甲氧基二苯甲酮(江苏无锡恒辉化学有限公司，UV-9)；
硬度改性剂为甲基丙烯酸甲酯(德固赛)；
抗收缩改性剂为2官能团的聚氨酯丙烯酸酯(台湾长兴，DR-U079)；
自开模改性剂为季戊四醇三丙烯酸酯预聚体(台湾长兴，EM-235)。
一种折射率1.50的防蓝光防红外树脂镜片，包括CR39树脂单体100kg，引发剂1.2kg，防红外吸收剂50g，蓝光吸收剂500g，硬度改性剂1.5kg，抗收缩改性剂90g，自开模改性剂90g。
该镜片制备步骤如下：
(1)配料：在树脂单体中升温至40℃预先溶解蓝光吸收剂、抗收缩改性剂和自开模改性剂，半小时后降温至常温25℃左右再依次加入防红外吸收剂和硬度改性剂，最后再加入引发剂，真空混合1～2小时；
(2)浇料：将步骤(1)混合均匀的料经过5μm的过滤器过滤后通过浇料器注入玻璃模具中，使用胶带密封；
(3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃，升温及降温过程均为匀速。
(4)开模、车边、清洗：固化成型后开模，并使用磨边机倒边后再进行表面清洗；
(5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h；
(6)使用浸涂的方法在镜片表面镀制加硬层；使用真空镀膜的方法在镜片表面镀制以二氧化硅、二氧化锆、氧化铟锡以及防水层，即增透减反射膜层。
实施例2
CR39树脂单体为二甘醇碳酸烯丙酯及其多聚体混合物，其中一聚二甘醇碳酸烯丙酯的含量为80～90％，其余为二聚体和三聚体(意大利ACOMN公司，型号7AX)；
引发剂为过氧化二异丙苯(济南国辰泰富化工有限公司)
防红外吸收剂为直径10～50nm的稀土元素氧化物(包括质量比Sm 2O 3：Eu 2O 3＝3:1)在乙烯-丙烯酸丁酯中分散均匀制备得到，稀土元素氧化物的浓度为2％；
蓝光吸收剂为2-羟基-4-正辛氧基二苯甲酮(南京经天纬化工有限公司，UV531)；
硬度改性剂为醋酸乙烯酯(上海金锦乐实业有限公司)；
染色改性剂为聚醚改性聚有机硅氧烷类流平分散剂(广东雷邦高新材料有限公司，RB-1181)
抗收缩改性剂为6官能团的聚氨酯丙烯酸酯(台湾长兴，6103)；
自开模改性剂为季戊四醇三丙烯酸酯预聚体(台湾长兴，EM-235)。
一种折射率1.50的防蓝光防红外树脂镜片，包括CR39树脂单体100kg，引发剂3kg，防红外吸收剂300g，蓝光吸收剂5kg，硬度改性剂8kg，染色改性剂30g，抗收缩改性剂3kg，自开模改性剂3kg。
该镜片制备步骤如下：
1)配料：在树脂单体中升温至40℃预先溶解蓝光吸收剂、抗收缩改性剂和自开模改性剂，半小时后降温至常温25℃左右再依次加入防红外吸收剂、硬度改性剂和染色改性剂，最后再加入引发剂，真空混合1～2小时；
(2)浇料：将步骤(1)混合均匀的料经过5μm的过滤器过滤后通过浇料器注入玻璃模具中，使用胶带密封；
(3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃，升温及降温过程均为匀速。
(4)开模、车边、清洗：固化成型后开模，并使用磨边机倒边再进行表面清洗；
(5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h；
(6)经过二次固化成型的镜片加入染色槽中，85～95℃染色半小时。
(7)使用浸涂的方法在镜片表面镀制加硬层；使用真空镀膜的方法在镜片表面镀制以二氧化硅、二氧化锆、氧化铟锡以及防水层，即增透减反射膜层。
实施例3
CR39树脂单体为二甘醇碳酸烯丙酯及其多聚体混合物，其中一聚二甘醇碳酸烯丙酯的含量为80～90％，其余为二聚体和三聚体(意大利ACOMN 公司，型号7AX)；
引发剂为1,1-二叔丁基过氧化-3,3,5-三甲基环己烷(天津阿克苏诺贝尔过氧化物有限公司)
防红外吸收剂为直径10～50nm的稀土元素氧化物(包括质量比Sm 2O 3：Eu 2O 3＝3:1)在乙烯-丙烯酸丁酯中分散均匀制备得到，稀土元素氧化物的浓度为2％；
蓝光吸收剂为2-羟基-4-十二烷氧基二苯甲酮(上海同金化工有限公司，UV-1200)；
硬度改性剂为甲基丙烯酸甲酯(德固赛)；
染色改性剂为聚醚改性聚有机硅氧烷类流平分散剂(广东雷邦高新材料有限公司，RB-1181)
抗收缩改性剂为2官能团的聚氨酯丙烯酸酯(台湾长兴DR-U079)；
自开模改性剂为季戊四醇三丙烯酸酯预聚体(台湾长兴EM-235)。
一种折射率1.50的防蓝光防红外树脂镜片，包括CR39树脂单体100kg，引发剂1.5kg，防红外吸收剂50g，蓝光吸收剂500g，硬度改性剂3kg，染色改性剂5g，抗收缩改性剂500g，自开模改性剂500g。
该镜片制备步骤如下：
1)配料：在树脂单体中升温至40℃预先溶解蓝光吸收剂、抗收缩改性剂和自开模改性剂，半小时后降温至常温25℃左右再依次加入防红外吸收剂、硬度改性剂和染色改性剂，最后再加入引发剂，真空混合1～2小时；
(2)浇料：将步骤(1)混合均匀的料经过5μm的过滤器过滤后通过浇料器注入玻璃模具中，使用胶带密封；
(3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃，升温及降温过程均为匀速。
(4)开模、车边、清洗：固化成型后开模，并使用磨边机倒边后再进行表面清洗；
(5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h；
(6)经过二次固化成型的镜片加入染色槽中，85～95℃染色半小时。
(7)使用浸涂的方法在镜片表面镀制可染色加硬层；使用真空镀膜的方法在镜片表面镀制以二氧化硅、二氧化锆、氧化铟锡以及防水层，即增透减反射膜层。
对比例1
一种树脂镜片，引发剂使用过氧化-2-乙基己酸叔丁酯，其余材料及制备方法同实施例3。
对比例2
一种树脂镜片，引发剂使用过氧化二碳酸二异丙酯，其余材料及制备方法同实施例3。
对比文件3
一种树脂镜片，防红外吸收剂采用德国FEW公司型号1122红外吸收剂，其余材料及制备方法同实施例3。
对比例4
一种树脂镜片，不添加防红外吸收剂，其余材料及制备方法同实施例3。
对比例5
一种树脂镜片，不添加染色改性剂，其余材料及制备方法同实施例3。
对比例6
一种树脂镜片，包括CR39树脂单体100kg，引发剂10kg，防红外吸收剂0.3g，蓝光吸收剂5g，硬度改性剂1kg，染色改性剂1g，抗收缩改性剂5g，自开模改性剂5g。该对比例的原料种类及型号同实施例3，制备方法也同实施例3。
上述实施例和对比例制备的镜片光学性能测试结果见表1。
表1实施例和对比例制备的镜片光学性能对比
Figure PCTCN2020088781-appb-000001
注：防蓝光性能通过TM-3测试；红外吸收率通过光学通过仪进行测试；硬度通过巴氏硬度计测试；表中镜片合格仅指镜片无点、伤、面型、垃圾、毛头、裂边问题。
根据表1数据显示，通过对比例1、2和6可知，采用不同的引发剂或 引发剂配比不对会导致镜片雾化严重甚至直接无法成型，本发明所述镜片可避免镜片雾化，同时具有良好的光学性能；通过对比例3和对比例4可知，本发明所述镜片可有效吸收红外光，红外吸收率远远高于普通的红外吸收剂；通过对比例5可知，本发明添加染色改性剂可保证镜片染色均匀，镜片不花；通过各实施例和对比例还可看出，不同的添加剂之间会产生影响，在保证某种添加剂对自身性能的改善的同时，还需注意是否对其他性能产生影响。
以上已经描述了本发明的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。

Claims (10)

  1. 一种折射率1.50的防蓝光防红外树脂镜片，其特征在于所述镜片包括以下组分：CR39树脂单体100重量份，引发剂0.5～5重量份，添加剂1.0216～30.6重量份，其中，所述添加剂包括防红外吸收剂、蓝光吸收剂、硬度改性剂，质量比为0.0005～0.5：0.001～10：1～10，所述引发剂为过氧化苯甲酰、过氧化二异丙苯或1,1-二叔丁基过氧化-3,3,5-三甲基环己烷。
  2. 根据权利要求1所述的折射率1.50的防蓝光防红外树脂镜片，其特征在于所述镜片包括以下组分：CR39树脂单体100重量份，引发剂1～3重量份，添加剂2.216～19.33重量份，其中，所述添加剂包括防红外吸收剂、蓝光吸收剂、硬度改性剂，质量比为0.001～0.3：0.01～5：2～8。
  3. 根据权利要求1或2所述的折射率1.50的防蓝光防红外树脂镜片，其特征在于所述添加剂还包括染色改性剂，所述染色改性剂与CR39树脂单体的质量比为0.0001～0.1：100，优选质量比为0.005～0.03：100，所述染色改性剂为硅氧烷类流平分散剂。
  4. 根据权利要求1～3中的任意一项权利要求所述的折射率1.50的防蓝光防红外树脂镜片，其特征在于所述CR39树脂单体为二甘醇碳酸烯丙酯及其多聚体混合物，其中一聚二甘醇碳酸烯丙酯的含量为80～90％。
  5. 根据权利要求1～3中的任意一项权利要求所述的折射率1.50的防蓝光防红外树脂镜片，其特征在于所述防红外吸收剂为直径10～50nm的稀土元素氧化物在乙烯-丙烯酸丁酯中分散均匀制备得到，稀土元素氧化物的浓度为0.5％～5％。
  6. 根据权利要求1～3中的任意一项权利要求所述的折射率1.50的防蓝光防红外树脂镜片，其特征在于所述添加剂还包括抗收缩改性剂和自开模改性剂，所述抗收缩改性剂、自开模改性剂与树脂单体的质量比为0.01～5：0.01～5：100，优选质量比为0.1～3：0.1～3：100。
  7. 一种权利要求1或2所述的折射率1.50的防蓝光防红外树脂镜片的制备方法，其特征在于该镜片是通过以下方法制得的：在树脂单体中40～55℃预先溶解蓝光吸收剂，降至常温后加入防红外吸收剂和硬度改性剂溶解，再加入引发剂，混合均匀后浇注入模具，然后进行热固成型。
  8. 根据权利要求7所述的折射率1.50的防蓝光防红外树脂镜片的制备方法，其特征在于该方法具体包括以下步骤：
    (1)配料：在树脂单体中升温至40～55℃预先溶解蓝光吸收剂，半小时后降温至常温再依次加入防红外吸收剂、硬度改性剂，最后再加入引发剂，真空混合1～2小时；
    (2)浇料：将步骤(1)混合均匀的料过滤后注入玻璃模具中，密封；
    (3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃。
    (4)开模、车边、清洗；
    (5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h。
  9. 一种权利要求3所述的折射率1.50的防蓝光防红外树脂镜片的制备方法，其特征在于该镜片是通过以下方法制得的：在树脂单体中40～55℃预先溶解蓝光吸收剂，降至常温后加入防红外吸收剂、硬度改性剂和染色改性剂溶解，再加入引发剂，混合均匀后浇注入模具，然后进行热固成型，热固完成后进行染色。
  10. 根据权利要求9所述的折射率1.50的防蓝光防红外树脂镜片的制备方法，其特征在于该方法具体包括以下步骤：
    (1)配料：在树脂单体中升温至40～55℃预先溶解蓝光吸收剂，半小时后降温至常温再依次加入防红外吸收剂、硬度改性剂和染色改性剂，最 后再加入引发剂，真空混合1～2小时；
    (2)浇料：将步骤(1)混合均匀的料过滤后注入玻璃模具中，密封；
    (3)第一次固化：将步骤(2)中浇完料的模具放入固化炉中进行一次固化成型，固化时间和温度曲线为：初始温度25～30℃，1h升温至60～65℃，1h升温至80～85℃，80～85℃保持20h，16h升温至90～95℃，3h升温至100～105℃，0.5h降温至75～80℃。
    (4)开模、车边、清洗；
    (5)第二次固化：清洗后的镜片再次放入固化炉中进行二次固化，固化温度为105～110℃，时间为2～2.5h；
    (6)经过二次固化成型的镜片加入染色槽中，85～95℃染色半小时。
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