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WO2018105593A1 - Feuille multicouche et lentille - Google Patents

Feuille multicouche et lentille Download PDF

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Publication number
WO2018105593A1
WO2018105593A1 PCT/JP2017/043598 JP2017043598W WO2018105593A1 WO 2018105593 A1 WO2018105593 A1 WO 2018105593A1 JP 2017043598 W JP2017043598 W JP 2017043598W WO 2018105593 A1 WO2018105593 A1 WO 2018105593A1
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WO
WIPO (PCT)
Prior art keywords
layer
laminated sheet
lens
protective layer
resin
Prior art date
Application number
PCT/JP2017/043598
Other languages
English (en)
Japanese (ja)
Inventor
浩行 神尾
三浦　徹
Original Assignee
三井化学株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三井化学株式会社 filed Critical 三井化学株式会社
Priority to JP2018555005A priority Critical patent/JPWO2018105593A1/ja
Publication of WO2018105593A1 publication Critical patent/WO2018105593A1/fr

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Classifications

    • 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
    • B29D11/0073—Optical laminates
    • 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
    • B29D11/00634—Production of filters
    • B29D11/00644—Production of filters polarizing
    • 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
    • B29D11/00653—Production of filters photochromic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/12—Polarisers

Definitions

  • the present invention relates to a laminated sheet and a lens including the laminated sheet.
  • the polarizing lens can prevent transmission of reflected light. Therefore, it is used to protect eyes by blocking strong reflected light outdoors such as ski resorts and fishing, and to ensure safety by blocking reflected light from oncoming vehicles when driving a car.
  • Patent Document 1 a polarizing lens composed of a plastic lens substrate and a polyvinyl alcohol polarizing film has been proposed (Patent Document 1).
  • Patent Document 2 describes a polarizing lens in which an ultraviolet absorber is contained in a plastic lens.
  • Patent Documents 3 and 4 describe a plastic polarizing lens including a tetraazaporphyrin compound in a lens substrate.
  • Patent Documents 5 and 6 describe a plastic lens including a tetraazaporphyrin compound in a lens substrate.
  • Patent Document 7 discloses a plastic lens containing a photochromic compound.
  • Patent Document 8 discloses a plastic polarizing lens provided with a polymerization hardened layer of diethylene glycol bisallyl carbonate on both surfaces of a polyvinyl alcohol resin-based polarizing film layer and a polycarbonate resin base material on one of the polymerized hardened layers. . It is described that this polymerization hardened layer may contain a photochromic agent, an ultraviolet absorber, or an infrared absorber.
  • Patent Document 9 discloses a polarizing laminate in which protective layers made of polyimide resin are laminated on both surfaces of a polarizing layer via an adhesive, and describes that a resin layer is formed on at least one protective layer. ing. It is described that the protective layer may contain an ultraviolet absorber or the like.
  • paragraph 0009 of the document describes that when a polycarbonate resin is used as the protective layer, the adhesion to the polarizing film is poor, and further cracks and optical distortion occur.
  • Patent Document 10 describes that in a polarizing plate including a polarizing layer and a protective layer, the protective layer is also used as a color light absorbing layer.
  • the thermoplastic resin contained in the protective layer is at least one selected from a polycarbonate resin, a triacetyl cellulose resin, a polyamide resin, a polyester resin, and an acrylic resin.
  • the polarizing layer is made of a polyvinyl alcohol polarizing film.
  • the light wavelength absorber is at least one selected from an ultraviolet absorber and a dye that absorbs a specific wavelength in the visible light region.
  • a lens comprising the laminated sheet according to any one of [1] to [10].
  • the light wavelength absorber is at least one selected from an ultraviolet absorber and a dye that absorbs a specific wavelength in the visible light region.
  • a method for manufacturing a lens comprising: [20]
  • the step of forming the thermoplastic resin layer includes: The method for producing a lens according to [19], including a step of injection molding a thermoplastic resin in a gap between the surface of the laminated sheet and the mold.
  • the light wavelength absorber is contained in the protective layer formed on at least one surface of the polarizing layer composed of a polarizing film or the like, the difference in the hue of the lens and the color density are suppressed.
  • a lens having an excellent appearance can be provided, and a lens having excellent polarization and light wavelength absorption can be provided.
  • the protective layer contains the light wavelength absorber, it is possible to prevent the light wavelength absorber from being discarded, and the manufacturing cost can be suppressed.
  • the laminated sheet of the present invention comprises a polarizing layer, and a protective layer laminated on both surfaces of the polarizing layer, At least one of the protective layers contains a thermoplastic resin, and at least one of the protective layers contains a light wavelength absorber.
  • the laminated sheet 10 of 1st Embodiment is a protective layer (1st protective layer 14a, 2nd protective layer) laminated
  • the first protective layer 14a and the second protective layer 14b include a thermoplastic resin, and at least one includes a light wavelength absorber.
  • the polarizing layer 12 can be comprised from the film which consists of thermoplastic resins, for example, can be comprised from a polyvinyl-alcohol-type polarizing film or a polyethylene terephthalate-type polarizing film.
  • the thickness of the polarizing layer 12 is about 10 to 500 ⁇ m.
  • the polarizing film can be prepared by the following procedure. First, a resin composition containing a resin and a predetermined amount of dichroic dye or iodine is formed into a film by a predetermined method. Alternatively, a resin film is dyed with a dichroic dye or iodine. Next, the obtained film can be produced by stretching in a uniaxial direction. If necessary, drying, heat treatment, and the like may be performed.
  • dichroic dye contained in a polarizing film it does not specifically limit as a dichroic dye contained in a polarizing film.
  • dichroic dyes normally used for a polarizing member can be mentioned. Specific examples include azo, anthraquinone, merocyanine, styryl, azomethine, quinone, quinophthalone, perylene, indigo, tetrazine, stilbene, and benzidine dyes.
  • Synitomo Chemical History of Technology 2002-II (issued on November 11, 2002), P23-30, Technical Document on Development of Dichroic Dye for Liquid Crystal Display, International Publication No. 2014/030603, International Publication No. 2014/030611 It may be the one described in the specification, US Pat. No.
  • the polarizing film may contain a dye other than the dichroic dye.
  • the polarizing layer 12 is comprised from the polyvinyl alcohol-type polarizing film.
  • the first protective layer 14a and the second protective layer 14b include a thermoplastic resin, and at least one of them includes a light wavelength absorber.
  • a protective layer can be comprised from a resin sheet or a film.
  • the thicknesses of the first protective layer 14a and the second protective layer 14b may be the same or different, but are about 50 to 1000 ⁇ m.
  • thermoplastic resin contained in the first protective layer 14a and the second protective layer 14b is at least one selected from polycarbonate resin, triacetyl cellulose resin, polyamide resin, polyester resin, and acrylic resin.
  • Polycarbonate resin examples include conventionally known polycarbonate resins obtained from dihydric phenols or dihydric alcohols and carbonic acid diesters or phosgene, and aromatic polycarbonate resins are preferred.
  • aromatic polycarbonate resins include bishydroxy (halogeno) phenylalkanes such as 2,2-bis (4-hydroxyphenyl) propane and 2,2-bis (4-hydroxy-3,5-dibromophenyl) propane.
  • a polymer produced by a known method from a monomer such as a bisphenol compound or a fluorene group substituted on the alkane moiety is used.
  • the molecular weight of the aromatic polycarbonate resin may be in a normal range, and from the viewpoint of formability and mechanical strength, preferably the viscosity average molecular weight is 17,000 to 40,000, and from the viewpoint of manufacturing by extrusion. More preferably, it is 20,000 to 30,000.
  • Triacetyl cellulose resin is a resin obtained by acetylating a cellulose resin.
  • Cellulose resin is a polysaccharide in which D-glucose, which is a basic unit, is connected in a straight chain with ⁇ -1,4 bonds.
  • the glucose unit constituting cellulose has three hydroxyl groups at 2, 3, and 6 positions, and these hydroxyl groups can be esterified.
  • the esterification of cellulose can be performed by a known method. For example, cellulose is treated with a strong caustic soda solution and then acylated with an acid anhydride.
  • the degree of substitution of the obtained cellulose acylate is about 3. By hydrolyzing this, a cellulose acylate having the desired degree of substitution can be produced.
  • Polyamide resin examples of the polyamide resin include polyamide-6, polyamide-6,6 and polyamide-6,10.
  • Polyester resins include polyethylene terephthalate, polypropylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polycyclohexanedimethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, poly (1,4-cyclohexanedimethanol) 1,4-cyclohexanedicarboxylate), polycyclohexanedimethanol adipate, poly (cyclohexane-dimethanol terephthalate) and the like.
  • Acrylic resins include acrylic acid, methyl acrylate, ethyl acrylate, butyl acrylate, sodium acrylate, ammonium acrylate, 2-hydroxyethyl acrylate, methacrylic acid, methyl methacrylate, ethyl methacrylate, butyl methacrylate, Examples thereof include those having structural units derived from unsaturated monomers such as sodium methacrylate, ammonium methacrylate, 2-hydroxyethyl methacrylate, glycidyl methacrylate, acrylamide and methacrylamide. Moreover, what copolymerized the unsaturated monomer illustrated above and other unsaturated monomers, such as styrene, vinyl acetate, vinyl chloride, vinylidene chloride, divinylbenzene, may be used.
  • thermoplastic resin is preferably an aromatic polycarbonate resin.
  • the light wavelength absorber absorbs a specific wavelength, and includes at least one selected from an ultraviolet absorber and a dye that absorbs a specific wavelength in the visible light region.
  • UV absorber examples of the ultraviolet absorber in the present embodiment include benzophenone compounds, triazine compounds, benzotriazole compounds, and the like.
  • the ultraviolet absorber is 0.01 to 20 parts by weight, preferably 0 with respect to 100 parts by weight of the aromatic polycarbonate resin contained in the protective layer (the first protective layer 14a or the second protective layer 14b). 1 to 10 parts by weight.
  • examples of the dye that absorbs a specific wavelength in the visible light region include tetraazaporphyrin compounds, squarylium compounds, phthalocyanine compounds, porphyrin compounds, merocyanine compounds, and methine compounds.
  • tetraazaporphyrin compound a compound represented by the following general formula (1) is preferably used.
  • a 1 to A 8 are each independently a hydrogen atom, a halogen atom, a nitro group, a cyano group, a hydroxy group, an amino group, a carboxyl group, a sulfonic acid group, or a straight chain having 1 to 20 carbon atoms.
  • Examples of the metal atom include a copper atom, a nickel atom, and a cobalt atom.
  • Examples of product names include FDG-004, FDG-005, FDG-006, FDG-007 manufactured by Yamada Kasei Kogyo, and PD-311S manufactured by Yamamoto Kasei.
  • M is more preferably divalent copper in the general formula (1).
  • Specific examples include tetra-t-butyl-tetraazaporphyrin / copper complex represented by the following formula (1a), which corresponds to the product number of PD-311S (manufactured by Yamamoto Kasei Co., Ltd.).
  • Cu represents divalent copper
  • tC 4 H 9 represents a tertiary-butyl group
  • substitution positions of the four substituents are A 1 or A 2 in the general formula (1).
  • a 3 or a 4 one of a 5 or a 6, is either a 7 or a 8.
  • dye which absorbs the specific wavelength of visible region is with respect to the aromatic polycarbonate resin contained in a protective layer (the 1st protective layer 14a and the 2nd protective layer 14b) with respect to a thermoplastic resin. 5 to 1000 ppm, preferably 10 to 500 ppm.
  • a light wavelength absorber may be contained in one or both of the first protective layer 14a and the second protective layer 14b.
  • the second protective layer 14b preferably contains an ultraviolet absorber from the viewpoint of suppressing deterioration of the polarizing layer 12 and the like. More preferably, the first protective layer 14a contains a dye that absorbs a specific wavelength in the visible light region, and the second protective layer 14b contains an ultraviolet absorber.
  • the light wavelength absorber is contained in the first protective layer 14a and the second protective layer 14b by containing the light wavelength absorber, as compared with the case where the polarizing layer 12 contains the light wavelength absorber. Is uniformly dispersed, and a laminated sheet that expresses a desired effect can be obtained efficiently.
  • the laminated sheet 10 of this embodiment can contain a compound exhibiting dimming properties in at least one of the polarizing layer 12, the first protective layer 14a, and the second protective layer 14b.
  • a photochromic compound can be mentioned as a compound which shows light control property.
  • limiting in particular as a photochromic compound From a conventionally well-known compound which can be used for a photochromic lens, arbitrary things can be selected suitably and can be used. For example, one type or two or more types can be used from spiropyran compounds, spirooxazine compounds, fulgide compounds, naphthopyran compounds, and bisimidazole compounds depending on the desired coloration.
  • the photochromic compound in this embodiment can be obtained by the method described in WO2009 / 146509, WO2010 / 20770, WO2012 / 149599, and WO2012 / 162725.
  • the protective layer includes a light stabilizer, an antioxidant, a heat stabilizer, a light deterioration inhibitor, and a heat deterioration inhibitor. Etc. may be added as appropriate.
  • the laminated sheet 10 of this embodiment can be manufactured by laminating the first protective layer 14a and the second protective layer 14b on both surfaces 12a and 12b of the polarizing layer 12, respectively. Specifically, it can be produced by bringing a sheet or film to be a protective layer into contact with both sides of the polarizing film and then adhering them.
  • the pressurizing condition in the pressure bonding is appropriately selected depending on the type and thickness of the sheet or film.
  • At least one surface of the polarizing film or at least one surface of the protective layer may be subjected to surface treatment or easy adhesion treatment.
  • the surface treatment include gas or chemical solution treatment, corona discharge treatment, plasma treatment, ultraviolet irradiation treatment, electron beam irradiation treatment, surface roughening treatment, flame treatment, and the like. And anchor agent coating treatment.
  • the laminated sheet 20 of the second embodiment is The polarizing layer 22, the adhesive layer (first adhesive layer 23 a, second adhesive layer 23 b) and the adhesive layer (first adhesive layer 23 a, second layer) laminated on both surfaces (22 a, 22 b) of the polarizing layer 22, respectively. And protective layers (first protective layer 24a and second protective layer 24b), which are respectively stacked on the adhesive layer 23b).
  • the polarizing layer 22, the first protective layer 24a, and the second protective layer 24b are the same as the polarizing layer 12, the first protective layer 14a, and the second protective layer 14b of the first embodiment.
  • the first adhesive layer 23 a is provided between the first protective layer 24 a and the polarizing layer 22, and the second adhesive layer 23 b is further provided between the second protective layer 24 b and the polarizing layer 22. Thereby, a protective layer and a polarizing layer can be adhere
  • the thicknesses of the first adhesive layer 23a and the first adhesive layer 23a may be the same or different and are about 0.1 to 50 ⁇ m.
  • Materials included in the adhesive layers include acrylic resin materials, urethane resin materials, polyester resin materials, melamine resin materials, epoxy resin materials, and silicone materials. Etc.
  • a two-component thermosetting urethane resin composed of a polyurethane prepolymer which is a urethane resin material and a curing agent is preferable.
  • a light wavelength absorber may be contained in one or both of the first protective layer 24a and the second protective layer 24b.
  • the second protective layer 24b contains an ultraviolet absorber from the viewpoint of suppressing deterioration of the polarizing layer 22 and the like, and the first protective layer 24a specifies the visible light region. More preferably, the second protective layer 24b contains a UV absorber.
  • the laminated sheet 20 of the present embodiment is a compound that exhibits dimming properties in at least one of the polarizing layer 12, the first adhesive layer 23a, the second adhesive layer 23b, the first protective layer 24a, and the second protective layer 24b. Can be included.
  • the photochromic compound illustrated in 1st Embodiment can be mentioned.
  • the protective layer includes a light stabilizer, an antioxidant, a heat stabilizer, a light deterioration inhibitor, and a heat deterioration inhibitor. Etc. may be added as appropriate. In the present embodiment, only one of the first adhesive layer 23a and the second adhesive layer 23b may be formed.
  • the first protective layer 24a and the second protective layer 24b are laminated on both surfaces 22a and 22b of the polarizing layer 22 via the first adhesive layer 23a and the second adhesive layer 23b, respectively.
  • the first adhesive layer 23a and the second adhesive layer 23b are respectively formed on the surfaces of the first protective layer 24a and the second protective layer 24b, and this protective layer with the adhesive layer is laminated on both surfaces 22a and 22b of the polarizing layer 22. It can also be manufactured.
  • the polarizing film can be produced by forming adhesive layers on both surfaces of the polarizing film and then pressure-bonding a sheet or film serving as a protective layer.
  • it can be produced by forming an adhesive layer on one surface of a sheet or film to be a protective layer, bringing each adhesive layer into contact with both surfaces of the polarizing film, and then pressure-bonding.
  • the first adhesive layer 23a and the second adhesive layer 23b can be formed by applying an adhesive containing the resin material.
  • the pressurizing condition in the pressure bonding is appropriately selected depending on the type and thickness of the sheet or film.
  • at least one surface of the polarizing film or at least one surface of the protective layer may be subjected to surface treatment or easy adhesion treatment. Examples of the surface treatment include gas or chemical solution treatment, corona discharge treatment, plasma treatment, ultraviolet irradiation treatment, electron beam irradiation treatment, surface roughening treatment, flame treatment, and the like. And anchor agent coating treatment.
  • Curved lens comprising the laminated sheet of the first embodiment or the second embodiment, or the laminated sheet of the first embodiment or the second embodiment, the concave curved surface and the convex curved of the laminated sheet
  • a lens comprising a thermoplastic resin layer laminated on at least one surface of the surface, Can be mentioned.
  • the lens 10 a according to the present embodiment includes a curved laminated sheet according to the first embodiment. Further, as shown in FIG. 4, the lens 20a of the present embodiment is composed of a curved laminated sheet of the second embodiment. Hereinafter, the lens 10a of this embodiment will be described.
  • the lens 10a can be manufactured by bending and bending the laminated sheet 10 of the first embodiment. Specifically, the laminated sheet 10 is bent under heat and pressure so that the exposed surface of the second protective layer 14b becomes a convex curved surface.
  • the heating condition and the pressurizing condition can be appropriately selected depending on the kind of resin constituting the polarizing layer and the layer thickness. Further, the laminated sheet 10 can be bent under heat and pressure so that the exposed surface of the first protective layer 14a becomes a convex curved surface.
  • the heating condition and the pressurizing condition can be appropriately selected depending on the type and thickness of the resin constituting the polarizing layer.
  • the first protective layer 14a may contain a light wavelength absorber.
  • the second protective layer 14b contains an ultraviolet absorber
  • the first protective layer 14a more preferably contains a dye that absorbs a specific wavelength in the visible light region, such as a tetraazaporphyrin compound.
  • a coating layer, an antifogging layer, a stainproof layer, a water repellent layer, etc., which will be described later, are provided as necessary on at least one surface of the first protective layer 14a and the second protective layer 14b of the lens 10a. May be.
  • the lens 20a made of the laminated sheet 20 of the second embodiment is the same as the lens 10a of the present embodiment except that the laminated sheet 20 is used.
  • the lens 30 of the present embodiment is curved on the laminated sheet 10 ′ of the first embodiment and the concave curved surface of the laminated sheet 10 ′ (the concave curved surface of the first protective layer 14a). And a thermoplastic resin layer 32 laminated thereon.
  • the lens 40 of the present embodiment includes a curved laminated sheet 20 ′ of the second embodiment, and a concave curved surface of the laminated sheet 20 ′ (a concave curved surface of the first protective layer 24a). And a thermoplastic resin layer 32 laminated thereon.
  • the lens 30 of this embodiment will be described.
  • the thermoplastic resin layer 32 can contain the same resin as the thermoplastic resin contained in the protective layer. Moreover, the thermoplastic resin layer 32 can also contain a conventionally well-known additive suitably, and can contain a ultraviolet absorber. In addition, the pigment
  • the layer thickness of the thermoplastic resin layer 32, which is a lens substrate, is about 0.5 to 150 mm.
  • the laminated sheet 10 ′ according to the first embodiment is laminated on the concave curved surface of the laminated sheet 10 ′ (the concave curved surface of the first protective layer 14a). Even the lens 50 including the thermoplastic resin layer 32 thus formed and the thermoplastic resin layer 34 laminated on the convex curved surface (surface on the second protective layer 14b side) of the laminated sheet 10 ′. Good.
  • the resins contained in the thermoplastic resin layer 32 and the thermoplastic resin layer 34 may be the same or different, and the layer thicknesses may be the same or different.
  • the lens 40 shown in FIG. 6 is preferable.
  • the second protective layer 24b on the object plane side contains an ultraviolet absorber
  • the first protective layer 24a on the eye side contains a dye that absorbs a specific wavelength in the visible light region
  • the laminated sheet 20 ′ More preferably, the thermoplastic resin layer 32 is laminated on the concave curved surface (the concave curved surface of the first protective layer 24a). Thereby, decomposition
  • the lens 40 using the laminated sheet 20 of the second embodiment is the same as the lens 30 using the laminated sheet 10 of the first embodiment, except that the laminated sheet 20 is used.
  • a thermoplastic resin layer can be provided on both sides of the curved laminated sheet 20 ′.
  • a specific configuration of a preferable lens of the present embodiment will be described based on the lens 30 shown in FIG.
  • the lens 30 in FIG. A polarizing film 12 made of polyvinyl alcohol, comprising a convex curved surface and a concave curved surface located on the back side of the surface; A second protective layer 14b containing an aromatic polycarbonate resin laminated on the convex curved surface of the polarizing film 12, A first protective layer 14a containing an aromatic polycarbonate resin and a light wavelength absorber laminated on the concave curved surface of the polarizing film 12, A lens substrate 32 comprising an aromatic polycarbonate resin laminated on the first protective layer 14a; Is provided.
  • the difference in hue of the lens and the color density are further suppressed, and the production cost can be reduced because the protective layer contains the light wavelength absorber.
  • the configuration described in the above embodiment can be adopted as a configuration that does not particularly refer to the polarizing film 12, the first protective layer 14a, the second protective layer 14b, and the lens substrate 32.
  • the light wavelength absorber is at least one selected from the above-described ultraviolet absorber and the above-described dye that absorbs a specific wavelength in the visible light region, and is a dye that absorbs a specific wavelength in the visible light region. preferable.
  • the dye the above-described tetraazaporphyrin compound is more preferably used from the viewpoint of the effect of the present invention.
  • the first protective layer 14a may contain a light wavelength absorber.
  • the second protective layer 14b contains an ultraviolet absorber
  • the first protective layer 14a more preferably contains a dye that absorbs a specific wavelength in the visible light region, such as a tetraazaporphyrin compound.
  • a dye that absorbs a specific wavelength in the visible light region such as a tetraazaporphyrin compound.
  • a lens shown in FIG. 6 including an adhesive layer between the polarizing film and the protective layer can be employed.
  • the lens 40 includes a first adhesive layer 23a between the polarizing film 22 and the first protective layer 24a, and further a second adhesive layer between the polarizing film 22 and the second protective layer 24b. 23b.
  • the method for producing a lens of the present invention includes a step of bending a laminated sheet and bending the laminated sheet; Disposing the laminated sheet in the mold so that at least one of the convex curved surface and the concave curved surface of the curved laminated sheet faces the mold surface at a predetermined distance; , Forming a thermoplastic resin layer in the gap between the surface of the laminated sheet and the mold.
  • the manufacturing method of the lens 30 of this embodiment includes the following steps.
  • Step a The laminated sheet 10 is bent and bent.
  • Step b The laminated sheet 10 ′ is placed in the mold and curved so that the convex curved surface of the curved laminated sheet 10 ′ faces the mold surface for forming the objective surface of the lens.
  • the laminated sheet 10 ′ is placed in the mold so that the concave curved surface of the laminated sheet 10 ′ facing the mold surface for forming the eye-facing surface of the lens is spaced a predetermined distance away.
  • Step c forming a thermoplastic resin layer in the gap between the concave curved surface of the laminated sheet and the mold.
  • the manufacturing method of the lens 40 of this embodiment includes the following processes.
  • Step 1 The laminated sheet 20 is bent and bent.
  • Step 2 The laminated sheet 20 ′ is placed in the mold so that the convex curved surface of the curved laminated sheet 20 ′ is opposed to the mold surface for forming the objective surface of the lens.
  • the laminated sheet 20 ′ is arranged in the mold so that the concave curved surface of the laminated sheet 20 ′ is opposed to the mold surface for forming the eye-facing surface of the lens with a predetermined distance.
  • Process 3 A thermoplastic resin layer is formed in the space
  • the laminated sheet 10 is bent under heat and pressure so that the exposed surface of the second protective layer 14b becomes a convex curved surface.
  • the heating condition and the pressurizing condition can be appropriately selected depending on the kind and layer thickness of the resin constituting the polarizing layer and the protective layer.
  • the curved laminated sheet 10 is placed in a mold.
  • the convex curved surface (exposed surface of the second protective layer 14b) is disposed so as to face the mold surface for forming the objective surface of the lens, and the concave curved surface (first surface).
  • the laminated sheet 10 ′ is placed in the mold so that the exposed surface of the protective layer 14a faces the mold surface for forming the eye-facing surface of the lens with a predetermined distance therebetween.
  • the convex curved surface (exposed surface of the second protective layer 14b) may be in contact with the mold surface.
  • the distance between the concave curved surface (exposed surface of the first protective layer 14a) and the mold surface is about 0.5 to 150 mm.
  • a mold release agent may be applied to the surface of the mold surface.
  • Step c can include a step of injection-molding a thermoplastic resin in the gap between the concave curved surface of the laminated sheet 10 and the mold, whereby the thermoplastic resin is formed on the first protective layer 14a.
  • a layer (lens substrate) can be formed.
  • a thermoplastic resin contained in the protective layer can be used as the thermoplastic resin contained in the resin layer.
  • the lens of this embodiment can be obtained by releasing from the mold. Further, if necessary, the back surface 32a of the thermoplastic resin layer can be polished so as to have a desired thickness or a desired lens power.
  • the convex curved surface of the curved laminated sheet 10 ′ is a predetermined distance from the mold surface for forming the objective surface of the lens.
  • the laminated sheet 10 ′ is made of metal so that the concave curved surface of the laminated sheet 10 ′ that is spaced apart and curved is opposed to the mold surface for forming the opposite surface of the lens by a predetermined distance. Place in the mold.
  • the distance between the convex curved surface and the mold surface and the distance between the concave curved surface and the mold surface may be the same or different, and are about 0.5 to 150 mm.
  • thermoplastic resin layers 32 and 34 are formed in the space
  • the lens 50 shown in FIG. 7 can be manufactured.
  • a coating layer may be applied to at least one of the objective surface and the eye-facing surface of the lens, if necessary.
  • the coating layer include a primer layer, a hard coat layer, an antireflection layer, a mirror coat layer, an antifogging coat layer, a stainproof layer, and a water repellent layer.
  • Each of these coating layers can be used alone, or a plurality of coating layers can be used in multiple layers.
  • Each of these coating layers is a photochromic dye; an infrared absorber for the purpose of protecting eyes from infrared rays; a light stabilizer, an antioxidant, a heat stabilizer for the purpose of improving the weather resistance of the lens and the durability of the layer itself, A photodegradation inhibitor or a thermal degradation inhibitor; a dye or pigment for the purpose of enhancing the fashionability of the lens; an antistatic agent; and other known additives for enhancing the performance of the lens may be used in combination.
  • various leveling agents for the purpose of improving coating properties may be used.
  • the primer layer is usually formed between a hard coat layer and a protective layer described later.
  • the primer layer is a coating layer for the purpose of improving the adhesion between the hard coat layer and the protective layer formed thereon, and in some cases, the impact resistance can be improved.
  • any material can be used, but usually a primer composition mainly composed of urethane resin, epoxy resin, polyester resin, melanin resin, polyvinyl acetal. Etc. are used.
  • the primer composition may use an appropriate solvent that does not affect the lens for the purpose of adjusting the viscosity of the composition. Of course, you may use it without a solvent.
  • the primer layer can be formed by either a coating method or a dry method.
  • the primer layer is formed by solidifying after applying the primer composition to the lens by a known coating method such as spin coating or dip coating.
  • a dry method it forms by well-known dry methods, such as CVD method and a vacuum evaporation method.
  • the surface of the lens may be subjected to a pretreatment such as an alkali treatment, a plasma treatment, or an ultraviolet treatment as necessary for the purpose of improving adhesion.
  • the hard coat layer is a coating layer for the purpose of imparting functions such as scratch resistance, abrasion resistance, moisture resistance, warm water resistance, heat resistance, and weather resistance to the lens surface.
  • the hard coat layer is generally composed of an organic silicon compound having a curing property and an element selected from the element group of Si, Al, Sn, Sb, Ta, Ce, La, Fe, Zn, W, Zr, In, and Ti.
  • a hard coat composition containing at least one kind of fine particles composed of one or more kinds of oxide fine particles and / or a composite oxide of two or more elements selected from these element groups is used.
  • the hard coat composition includes at least amines, amino acids, metal acetylacetonate complexes, organic acid metal salts, perchloric acids, perchloric acid salts, acids, metal chlorides and polyfunctional epoxy compounds. It is preferable to include any of them.
  • a suitable solvent that does not affect the lens may be used for the hard coat composition, or it may be used without a solvent.
  • the hard coat layer is usually formed by applying a hard coat composition by a known coating method such as spin coating or dip coating and then curing.
  • a known coating method such as spin coating or dip coating and then curing.
  • the curing method include thermal curing, a curing method by irradiation with energy rays such as ultraviolet rays and visible rays, and the like.
  • the refractive index of the hard coat layer is preferably in the range of ⁇ 0.1 in the difference in refractive index from the lens.
  • the antireflection layer is usually formed on the hard coat layer as necessary.
  • the antireflection layer includes an inorganic type and an organic type.
  • an inorganic type an inorganic oxide such as SiO 2 or TiO 2 is used, and a vacuum deposition method, a sputtering method, an ion plating method, an ion beam assist method, a CVD method is used. It is formed by the dry method.
  • an organic type it is formed by a wet method using a composition containing an organosilicon compound and silica-based fine particles having internal cavities.
  • the antireflection layer has a single layer and a multilayer, and when used in a single layer, the refractive index is preferably at least 0.1 lower than the refractive index of the hard coat layer.
  • a multilayer antireflection film is preferably used. In that case, a low refractive index film and a high refractive index film are alternately laminated. Also in this case, the refractive index difference between the low refractive index film and the high refractive index film is preferably 0.1 or more.
  • Examples of the high refractive index film include ZnO, TiO 2 , CeO 2 , Sb 2 O 5 , SnO 2 , ZrO 2 , and Ta 2 O 5, and examples of the low refractive index film include an SiO 2 film. .
  • the mirror coat layer is a layer that gives the lens surface (objective surface) a function of reflecting like a mirror.
  • the mirror coat layer is manufactured by forming a film including a metal layer such as Cr, Al, Ag, Au, Ni, Co, Ti on the lens surface. Further, as a method for forming a mirror coat layer without using a metal layer, there is a method for forming a film including a mirror coat layer by a transparent dielectric multilayer film.
  • the mirror coat layer is preferably installed on the object plane side.
  • an anti-fogging layer, a stain-proof layer, and a water repellent layer may be formed as necessary.
  • the processing method and processing materials are not particularly limited, and a known antifogging treatment is possible. Methods, antifouling treatment methods, water repellent treatment methods, and materials can be used.
  • a method of covering the surface with a surfactant for example, a method of adding a hydrophilic film to the surface to make it water absorbent, a method of covering the surface with fine irregularities and increasing water absorption
  • a method of covering the surface with fine irregularities and increasing water absorption examples thereof include a method of absorbing water by utilizing photocatalytic activity, and a method of preventing water droplet adhesion by applying a super water-repellent treatment.
  • a method of forming a water repellent treatment layer by vapor deposition or sputtering of a fluorine-containing silane compound or the like, or a method of forming a water repellent treatment layer by coating after dissolving the fluorine-containing silane compound in a solvent Etc a method of forming a water repellent treatment layer by vapor deposition or sputtering of a fluorine-containing silane compound or the like, or a method of forming a water repellent treatment layer by coating after dissolving the fluorine-containing silane compound in a solvent Etc.
  • the lens 40 using the laminated sheet 20 of the second embodiment can be manufactured in the same manner as the lens 30 using the laminated sheet 10 of the first embodiment, except that the laminated sheet 20 is used. Further, similarly to the lens 50, a thermoplastic resin layer can be formed on both surfaces of the curved laminated sheet 20 ′.
  • the lens of the present embodiment can be used for sunglasses, goggles, correction spectacle lenses and the like by appropriately forming the above coating layer.
  • the laminated sheet 10 or 20 of the present embodiment can be used for a polarizing plate, a photochromic plate, a polarizing / photochromic plate, and the like by appropriately forming the coating layer.
  • one protective layer can be formed of a resin other than a thermoplastic resin.
  • a light wavelength absorber can be included only in one protective layer, or in two protective layers, or one protective layer is formed from resin other than a thermoplastic resin. At the same time, only one protective layer can contain a light wavelength absorber.
  • thermoplastic resin layer may be formed only on the convex curved surface of the curved laminated sheet 10 ′ (the convex curved surface of the second protective layer 14b).
  • the laminated sheet 10 ′ is disposed in the mold so that the concave curved surface of the curved laminated sheet 10 ′ is opposed to the mold surface for forming the opposite surface of the lens with a predetermined distance therebetween,
  • a thermoplastic resin layer can be formed in the gap between the convex curved surface of the laminated sheet and the mold.
  • Bisphenol A type polycarbonate resin containing 0.4% by weight of 2- (5-chloro-2H-benzotriazol-2-yl) -4-methyl-6-tert-butylphenol (trade name: SD Polycarbonate SD2173M, Sumitomo Stylon Polycarbonate ( 10 kg) was dried at 140 ° C. for 4 hours or more, a dye having an absorption wavelength at 585 nm (trade name: PD-311S, manufactured by Yamamoto Kasei Co., Ltd.) 134 ppm was added, and the mixture was kneaded at 280 ° C. with an extruder. And pelletized to obtain polycarbonate pellets. The pellets were dried at 140 ° C.
  • a polycarbonate sheet A having a thickness of 0.3 mm was obtained in the same manner as above except that a dye having an absorption wavelength at 585 nm (trade name: PD-311S, manufactured by Yamamoto Kasei Co., Ltd.) was not added.
  • a laminated sheet was prepared by laminating a polycarbonate sheet A on one side of the polarizing film A and a polycarbonate sheet B on the other side with a urethane resin adhesive. The visible light transmittance of 585 nm of the laminated sheet was 6.5%.
  • a circular article having a diameter of 81 mm made of this laminated sheet is prepared by a punching method, and in a mold maintained at 130 ° C., the polycarbonate sheet B has a convex curved surface and the polycarbonate sheet A has a concave curved surface.
  • a polarizing wafer was prepared by bending the film.
  • a base curve 6C is formed by injection molding a bisphenol A type aromatic polycarbonate resin (trade name: SD Polycarbonate SD2173M, manufactured by Sumitomo Stylon Polycarbonate Co., Ltd.) on the concave curved surface (surface of the polycarbonate sheet A) of the polarizing wafer.
  • a polarizing lens (semi-finished product) having a center thickness of 10 mm was obtained. The obtained polarizing lens was excellent in red and green contrast, and the entire lens surface was uniform light blue-purple.

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

Abstract

La présente invention concerne une feuille multicouche (10) qui comprend : une couche polarisante (12) ; et des couches protectrices (une première couche protectrice (14a) et une seconde couche protectrice (14b)) qui sont stratifiées sur les surfaces ((12a), (12b)) de la couche polarisante (12). La première couche protectrice (14a) et la seconde couche protectrice (14b) contiennent une résine thermoplastique et un absorbant de longueur d'onde de lumière.
PCT/JP2017/043598 2016-12-06 2017-12-05 Feuille multicouche et lentille WO2018105593A1 (fr)

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EP3763517A1 (fr) * 2019-07-09 2021-01-13 Essilor International Procédé de fabrication d'un article optique photochromique
CN112236695A (zh) * 2018-08-08 2021-01-15 株式会社泰勒克斯 手术用光学透镜
KR102231541B1 (ko) * 2019-11-21 2021-03-24 최현식 다양한 몰드를 이용한 도수편광렌즈의 제조방법
JPWO2021111859A1 (fr) * 2019-12-02 2021-06-10
TWI776657B (zh) * 2021-08-26 2022-09-01 明基材料股份有限公司 全周曲面偏光板
WO2022211022A1 (fr) * 2021-03-31 2022-10-06 ホヤ レンズ タイランド リミテッド Verre de lunettes coloré
EP4371750A1 (fr) * 2022-11-18 2024-05-22 Essilor International Tranche de pva polarisant pour réduire la distorsion optique
JP7537160B2 (ja) 2020-07-30 2024-08-21 大日本印刷株式会社 光学積層体、偏光板及び画像表示装置
WO2025023210A1 (fr) * 2023-07-26 2025-01-30 三井化学株式会社 Composition de résine, lentille, filtre à transmission de lumière, élément optique et caméra d'imagerie

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CN110749949A (zh) * 2018-07-24 2020-02-04 白金科技股份有限公司 滤光片
CN110749949B (zh) * 2018-07-24 2022-03-15 白金科技股份有限公司 滤光片
CN112236695A (zh) * 2018-08-08 2021-01-15 株式会社泰勒克斯 手术用光学透镜
CN112236695B (zh) * 2018-08-08 2023-03-31 株式会社泰勒克斯 手术用光学透镜
JP7511944B2 (ja) 2018-08-08 2024-07-08 株式会社タレックス 手術用光学レンズ
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JPWO2020031502A1 (ja) * 2018-08-08 2021-08-10 株式会社タレックス 手術用光学レンズ
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WO2021005127A1 (fr) * 2019-07-09 2021-01-14 Essilor International Procédé de fabrication d'un article optique photochromique
CN114174055A (zh) * 2019-07-09 2022-03-11 依视路国际公司 用于制造光致变色光学制品的方法
EP3763517A1 (fr) * 2019-07-09 2021-01-13 Essilor International Procédé de fabrication d'un article optique photochromique
US20220266556A1 (en) * 2019-07-09 2022-08-25 Essilor International Method for manufacturing a photochromic optical article
KR102231541B1 (ko) * 2019-11-21 2021-03-24 최현식 다양한 몰드를 이용한 도수편광렌즈의 제조방법
WO2021111859A1 (fr) * 2019-12-02 2021-06-10 富士フイルム株式会社 Procédé de production d'un film anisotrope d'absorption de lumière
JP7223166B2 (ja) 2019-12-02 2023-02-15 富士フイルム株式会社 光吸収異方性膜の製造方法
JPWO2021111859A1 (fr) * 2019-12-02 2021-06-10
JP7537160B2 (ja) 2020-07-30 2024-08-21 大日本印刷株式会社 光学積層体、偏光板及び画像表示装置
JPWO2022211022A1 (fr) * 2021-03-31 2022-10-06
WO2022211022A1 (fr) * 2021-03-31 2022-10-06 ホヤ レンズ タイランド リミテッド Verre de lunettes coloré
JP7499405B2 (ja) 2021-03-31 2024-06-13 ホヤ レンズ タイランド リミテッド 着色眼鏡レンズ
TWI776657B (zh) * 2021-08-26 2022-09-01 明基材料股份有限公司 全周曲面偏光板
EP4371750A1 (fr) * 2022-11-18 2024-05-22 Essilor International Tranche de pva polarisant pour réduire la distorsion optique
WO2024105274A1 (fr) * 2022-11-18 2024-05-23 Essilor International Tranche polarisante à base de pva pour réduire la distorsion optique
WO2025023210A1 (fr) * 2023-07-26 2025-01-30 三井化学株式会社 Composition de résine, lentille, filtre à transmission de lumière, élément optique et caméra d'imagerie

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