Spectacle lenses and spectacles

Abstract

The present invention provides an eyeglass lens having a lens substrate and an inorganic layer, and further having a metal-containing layer between the lens substrate and the inorganic layer, the metal-containing layer containing silver and one or more metals selected from the group consisting of cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold, and palladium.

Description

Technical Field

[0001] This invention relates to an eyeglass lens and eyeglasses. Background Technology

[0002] Patent Document 1 discloses an antibacterial synthetic resin molded body, which is formed by coating the surface of a synthetic resin with an antibacterial surface coating agent and then curing it. The antibacterial surface coating agent is composed of a polymeric compound having at least two (meth)acryloyloxy groups in its molecule and a zeolite obtained mainly by ion replacement with silver ions.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent document 1: Japanese Patent Application Publication No. 9-327622. Summary of the Invention

[0006] The problem the invention aims to solve

[0007] Patent document 1 discloses the use of the above-mentioned surface coating agent to impart antibacterial properties to synthetic resin molded articles used in building materials, various interior structural materials, signs, displays, lighting fixtures, etc.

[0008] In recent years, the demand for antibacterial properties has been increasing. In this context, if eyeglass lenses could be endowed with the function of inhibiting bacterial growth (i.e., antibacterial properties), their added value could be increased. With this in mind, the inventors focused on silver, which exhibits antibacterial properties, and researched eyeglass lenses with a layer containing silver as a metal. However, the research results showed that eyeglass lenses with a layer containing silver as a metal tend to discolor after prolonged use.

[0009] One aspect of the present invention is to provide an eyeglass lens having a layer containing silver as a metal that can suppress discoloration after long-term use.

[0010] Solution for solving the problem

[0011] One aspect of the present invention relates to an eyeglass lens,

[0012] It has a lens substrate and an inorganic layer.

[0013] A metal-containing layer is also present between the lens substrate and the inorganic layer.

[0014] The metal contained in the aforementioned metal-containing layer is

[0015] Silver (hereinafter also referred to as the "first metal"), and

[0016] Selected from one or more metals (hereinafter also referred to as "second metals"), including cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold and palladium.

[0017] Silver is an antibacterial component. This component is included in a layer beneath the inorganic layer of the aforementioned eyeglass lens. The inventors believe this contributes to the eyeglass lens exhibiting antibacterial properties, and also provides excellent light and water resistance in relation to these antibacterial properties. The inventors further hypothesize that including one or more metals selected from cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold, and palladium in the layer containing silver as a metal helps to inhibit discoloration of the eyeglass lens after long-term use. This is believed to be because these metals can control the oxidation of silver. However, the present invention is not limited to the hypotheses described in this specification.

[0018] Invention Effects

[0019] According to one aspect of the present invention, it is possible to provide an eyeglass lens having a layer comprising silver as a metal and capable of suppressing discoloration after long-term use. Attached Figure Description

[0020] Figure 1 This graph is obtained by plotting the YI value after QUV accelerated weathering test relative to the zirconium content for eyeglass lenses that contain silver but differ in the percentage of zirconium content. Detailed Implementation

[0021] [Eyeglass lenses]

[0022] The above-mentioned eyeglass lenses will be described in more detail below.

[0023] <Contains a metal layer>

[0024] The metal-containing layer of the aforementioned spectacle lens contains silver (Ag; the first metal) and one or more metals selected from cobalt (Co), nickel (Ni), zinc (Zn), copper (Cu), zirconium (Zr), molybdenum (Mo), lead (Pb), gold (Au), and palladium (Pd) (the second metal). In one embodiment, only one second metal is included; in another embodiment, two or more second metals are included. Examples of the metal's presence in the metal-containing layer include elemental or alloyed metals, inorganic or organic compounds, and metal ions. Inorganic compounds can be, for example, inorganic oxides. Furthermore, examples of the metal's presence in the metal-containing layer include metal complexes. The metal can exist in various forms within the metal-containing layer. For example, silver is considered to exert antibacterial properties by at least a portion being ionized through oxidation.

[0025] The aforementioned metal-containing layer comprises a component containing silver as a first metal and a component containing a second metal. The silver-containing component and the second metal-containing component are described as described regarding the form in which the metal exists in the aforementioned metal-containing layer. In the aforementioned spectacle lens, the metal-containing layer located between the lens substrate and the inorganic layer can exert antibacterial properties by containing the silver-containing component, and can inhibit discoloration of the spectacle lens after long-term use by containing the second metal-containing component. Regarding this, the inventors speculate that when silver is included in the metal-containing layer, the oxidation of silver over time can cause the metal-containing layer to yellow, but since the second metal controls the oxidation of silver, yellowing can be suppressed. The aforementioned metal-containing layer can contain only one type of second metal-containing component or two or more types of second metal-containing components. As the second metal, it is preferably selected from one or more metals chosen from zirconium, gold, and palladium, and more preferably zirconium.

[0026] The aforementioned metal-containing layer is a layer located between the lens substrate and the inorganic layer. It can be a layer directly formed on the lens substrate by a film-forming method selected from wet and dry film-forming methods, or indirectly formed by passing through one or more other layers formed on the lens substrate. When the total amount of the film-forming material (excluding the solvent if used during film formation) is taken as 100% by mass, the total content of the metal-containing component selected from the component containing silver as the first metal and the component containing the second metal can be, for example, 0.100% by mass or more, 0.300% by mass or more, or 0.500% by mass or more, and can be, for example, 1.500% by mass or less, 1.300% by mass or less, or 1.000% by mass or less. Regarding the silver-containing component, in one embodiment, the silver-containing component can be used alone as the film-forming material. In another embodiment, a mixture of the silver-containing component and one or more other components can be used as the film-forming material. This also applies to the component containing the second metal and the component containing the third metal, which will be described later. The second metal component can be used in an amount of 0.01 to 100 times that of the silver component, based on a mass basis. The silver component and the second metal component can be used as a film-forming material, for example, in the form of particles. The particle size can be, for example, 1 nm or more and 60 nm or less. In this invention and specification, "particle size" refers to the average particle size, which can be, for example, the arithmetic mean of the particle sizes of about 5 to 10 particles. When the metal component is used as a film-forming material in the form of inorganic oxide particles, the particles can be particles composed of only one inorganic oxide, or particles containing two or more inorganic oxides. Among particles containing two or more inorganic oxides, at least one inorganic oxide can be a silver oxide and / or an oxide of the second metal.

[0027] Furthermore, the aforementioned metal-containing layer may further contain metallic components, such as platinum as a third metal. For details regarding the form of platinum and the presence of platinum-containing components in particulate form, please refer to the preceding description. The platinum-containing component may be used, for example, in an amount of 0.01 to 10 times the amount of the silver-containing component, based on a mass basis.

[0028] The inorganic layer can be a multilayer film with two or more inorganic layers, as will be explained in detail later. This multilayer film can be an antireflective film that prevents the reflection of light of a specific wavelength or wavelength range, or a reflective film that reflects light of a specific wavelength or wavelength range. In eyeglass lenses, specific examples of layers disposed between such a multilayer film and the lens substrate include the following layers. One or more of these layers can be the aforementioned metal-containing layer.

[0029] (Curing layer)

[0030] The aforementioned spectacle lens can have a cured layer, typically referred to as a hard coating, formed by curing a curable composition, between the lens substrate and the inorganic layer. In one embodiment, this cured layer can be the aforementioned metal-containing layer.

[0031] The aforementioned cured layer can be obtained, for example, by curing a curable composition comprising silicon oxide particles (hereinafter also referred to as "component (A)") and a silane compound (hereinafter also referred to as "component (B)"). The aforementioned curable composition may further comprise a multifunctional epoxy compound (hereinafter also referred to as "component (C)").

[0032] From the perspective of balancing scratch resistance and optical properties, the particle size of silicon oxide particles of component (A) is preferably in the range of 5 to 30 nm.

[0033] (B) The component is a silane compound, preferably a silane compound having a hydrolyzable group, more preferably a silane coupling agent having a hydrolyzable group and an organic group bonded to a silicon atom.

[0034] Examples of hydrolyzable groups include alkoxy, aryloxy, or hydroxyl groups, with alkoxy being the most preferred.

[0035] As a silane compound, an organosilicon compound or its hydrolysate represented by the following general formula (I) is preferred.

[0036] (R 1 ) a (R 3 ) b Si(OR 2 ) 4-(a+b) ···(I)

[0037] In general formula (I), a is 0 or 1, b is 0 or 1, preferably a is 1, b is 0 or 1.

[0038] R 1 This indicates an organic group having functional groups such as glycidyl etheroxy, vinyl, methacryloyloxy, acryloyloxy, mercapto, amino, or phenyl groups, preferably an organic group having an epoxy group. These functional groups can be directly bonded to silicon atoms or indirectly bonded to silicon atoms via linking groups such as alkylene groups.

[0039] R 2 It can be, for example, a hydrogen atom, an alkyl group, an acyl group, or an aryl group, preferably an alkyl group.

[0040] Use R 2 The alkyl group referred to is, for example, a straight-chain or branched alkyl group with 1 to 4 carbon atoms. Specific examples include methyl, ethyl, propyl, butyl, etc., with methyl or ethyl being preferred.

[0041] Use R 2 The acyl group represented is, for example, an acyl group with 1 to 4 carbon atoms. Specific examples include acetyl, propionyl, oleyl, benzoyl, etc.

[0042] Use R 2 The aryl group represented is, for example, an aryl group with 6 to 10 carbon atoms, such as phenyl, xylyl, tolyl, etc.

[0043] R 3 It is alkyl or aryl.

[0044] Use R 3 The alkyl group referred to is, for example, a straight-chain or branched alkyl group with 1 to 6 carbon atoms. Specific examples include methyl, ethyl, propyl, butyl, pentyl, hexyl, etc.

[0045] As a user of R 3 The aryl group represented is, for example, an aryl group with 6 to 10 carbon atoms, such as phenyl, xylyl, tolyl, etc.

[0046] Specific examples of component (B) include the following silane compounds:

[0047] Glycidyl etheroxymethyltrimethoxysilane, glycidyl etheroxymethyltriethoxysilane, α-glycidyl etheroxyethyltriethoxysilane, β-glycidyl etheroxyethyltrimethoxysilane, β-glycidyl etheroxyethyltriethoxysilane, α-glycidyl etheroxypropyltrimethoxysilane, α-glycidyl etheroxypropyltriethoxysilane, β-glycidyl etheroxypropyltrimethoxysilane, β-glycidyl etheroxypropyltriethoxysilane γ-glycidyl etheroxypropyltrimethoxysilane, γ-glycidyl etheroxypropyltriethoxysilane, γ-glycidyl etheroxypropyltripropoxysilane, γ-glycidyl etheroxypropyltributoxysilane, γ-glycidyl etheroxypropyltriphenoxysilane, α-glycidyl etheroxybutyltrimethoxysilane, α-glycidyl etheroxybutyltriethoxysilane, β-glycidyl etheroxybutyltrimethoxysilane, β-glycidyl etheroxybutyltrimethoxysilane Glyceryl etheroxybutyltriethoxysilane, γ-glycidyl etheroxybutyltrimethoxysilane, γ-glycidyl etheroxybutyltriethoxysilane, δ-glycidyl etheroxybutyltrimethoxysilane, δ-glycidyl etheroxybutyltriethoxysilane, (3,4-epoxycyclohexyl)methyltrimethoxysilane, (3,4-epoxycyclohexyl)methyltriethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, β-(3, 4-Epoxycyclohexyl)ethyltriethoxysilane, β-(3,4-epoxycyclohexyl)ethyltripropoxysilane, β-(3,4-epoxycyclohexyl)ethyltributoxysilane, β-(3,4-epoxycyclohexyl)ethyltriphenoxysilane, γ-(3,4-epoxycyclohexyl)propyltrimethoxysilane, γ-(3,4-epoxycyclohexyl)propyltriethoxysilane, δ-(3,4-epoxycyclohexyl)butyltrimethoxysilane, δ-(3,4-epoxycyclohexyl)propyltrimethoxysilane4-Epoxycyclohexyl)butyltriethoxysilane, glycidyl etheroxymethylmethyldimethoxysilane, glycidyl etheroxymethylmethyldiethoxysilane, α-glycidyl etheroxyethylmethyldimethoxysilane, α-glycidyl etheroxyethylmethyldiethoxysilane, β-glycidyl etheroxyethylmethyldimethoxysilane, β-glycidyl etheroxyethylmethyldiethoxysilane, α-glycidyl etheroxypropylmethyldimethoxysilane, α-glycidyl etheroxypropylmethyldiethoxysilane, β - Glycidyl etheroxypropylmethyldimethoxysilane, β-glycidyl etheroxypropylmethyldiethoxysilane, γ-glycidyl etheroxypropylmethyldimethoxysilane, γ-glycidyl etheroxypropylmethyldiethoxysilane, γ-glycidyl etheroxypropylmethyldipropoxysilane, γ-glycidyl etheroxypropylmethyldibutoxysilane, γ-glycidyl etheroxypropylmethyldiphenoxysilane, γ-glycidyl etheroxypropylethyldimethoxysilane, γ-glycidyl etheroxypropylethyldimethoxysilane γ-glycidyl ether oxypropyl vinyl dimethoxysilane, γ-glycidyl ether oxypropyl vinyl diethoxysilane, γ-glycidyl ether oxypropyl phenyl dimethoxysilane, γ-glycidyl ether oxypropyl phenyl diethoxysilane, methyl silicate, ethyl silicate, n-propyl silicate, isopropyl silicate, n-butyl silicate, sec-butyl silicate, tert-butyl silicate, tetraacetoxysilane, methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, methyltriacetoxysilane, methyl Tributoxysilane, methyltripropoxysilane, methyltripentoxysilane, methyltriphenoxysilane, methyltribenzyloxysilane, methyltriphenethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, vinyltrimethoxysilane, vinyltriacetoxysilane, vinyltrimethoxyethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, phenyltriacetoxysilane, γ-chloropropyltrimethoxysilane, γ-chloropropyltriethoxysilane, γ-chloropropyltriacetoxysilane, 3,3,3-Trifluoropropyltrimethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, γ-mercaptopropyltriethoxysilane, β-cyanoethyltriethoxysilane, chloromethyltrimethoxysilane, chloromethyltriethoxysilane, N-(β-aminoethyl)γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)γ-aminopropylmethyldimethoxysilane, γ-aminopropylmethyldimethoxysilane, N-(β-aminoethyl)γ-aminopropyltriethoxysilane, N-(β-aminoethyl)γ-aminopropyltriethoxysilane γ-chloropropylmethyldiethoxysilane, dimethyldimethoxysilane, phenylmethyldimethoxysilane, dimethyldiethoxysilane, phenylmethyldiethoxysilane, γ-chloropropylmethyldimethoxysilane, γ-chloropropylmethyldiethoxysilane, dimethyldiacetoxysilane, γ-methacryloyloxypropylmethyldimethoxysilane, γ-methacryloyloxypropylmethyldiethoxysilane, γ-mercaptopropylmethyldimethoxysilane, γ-mercaptopropylmethyldiethoxysilane, methylvinyldimethoxysilane, methylvinyldiethoxysilane, etc.

[0048] Commercially available silane coupling agents can also be used as silane compounds. Specific examples of commercially available products include KBM-303, KBM-402, KBM-403, KBE402, KBE403, KBM-1403, KBM-502, KBM-503, KBE-502, KBE-503, KBM-5103, KBM-602, KBM-603, KBM-903, KBE-903, KBE-9103, KBM-573, KBM-575, KBM-9659, KBE-585, KBM-802, KBM-803, KBE-846, and KBE-900, etc., manufactured by Shin-Etsu Chemical Co., Ltd.

[0049] (C) The component is a polyfunctional epoxy compound. A polyfunctional epoxy compound is a compound containing two or more epoxy groups in one molecule. Preferably, a polyfunctional epoxy compound contains two or three epoxy groups in one molecule.

[0050] As specific examples of component (C), the following multifunctional epoxy compounds can be cited:

[0051] 1,6-Hexanediol diglycidyl ether, ethylene glycol diglycidyl ether, diethylene glycol diglycidyl ether, triethylene glycol diglycidyl ether, tetraethylene glycol diglycidyl ether, nonaethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, dipropylene glycol diglycidyl ether, tripropylene glycol diglycidyl ether, tetrapropylene glycol diglycidyl ether, nonapropylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, neopentyl glycol hydroxyneopentyl ester diglycidyl ether, trimethylolpropane diglycidyl ether, trimethylolpropane triglycidyl ether, glycerol diglycidyl ether, glycerol triglycidyl ether, diglycerol diglycidyl ether, diglycerol triglycidyl ether, diglycerol tetraglycidyl ether, pentaerythritol diglycidyl ether Aliphatic epoxy compounds such as hydroglycerol ether, pentaerythritol triglycidyl ether, pentaerythritol tetraglycidyl ether, dipentaerythritol tetraglycidyl ether, sorbitol tetraglycidyl ether, diglycidyl ether of tri(2-hydroxyethyl) isocyanurate, and triglycidyl ether of tri(2-hydroxyethyl) isocyanurate; alicyclic epoxy compounds such as isophorone diol diglycidyl ether and bis-2,2-hydroxycyclohexylpropane diglycidyl ether; resorcinol diglycidyl ether, bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether; phthalic acid diglycidyl ester; phenolic varnish polyglycidyl ether; and cresol phenolic varnish polyglycidyl ether, etc. From the viewpoint of adhesion to adjacent layers or lens substrates, compounds containing two or three epoxy groups (bifunctional or trifunctional epoxy compounds) are preferred as component (C).

[0052] Commercially available multifunctional epoxy compounds include the Denacol series manufactured by Nagase ChemteX Co., Ltd., such as EX-201, EX-211, EX-212, EX-252, EX-313, EX-314, EX-321, EX-411, EX-421, EX-512, EX-521, EX-611, EX-612, EX-614, and EX-614B.

[0053] In addition to components (A) to (C) mentioned above, the curable composition can also be prepared by mixing any components such as organic solvents, surfactants (leveling agents), and curing catalysts as needed.

[0054] When the total amount of solid components in the curable composition (i.e., the total of all components except the solvent) is taken as 100% by mass, the content of component (A) is preferably 20% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, preferably 80% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less.

[0055] When the total amount of solid components in the curable composition is taken as 100% by mass, the content of component (B) is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 15% by mass or more, preferably 80% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less.

[0056] When the total amount of solid components in the curable composition is 100% by mass, the content of component (C) is, for example, 0% by mass or more, preferably 10% by mass or more, more preferably 15% by mass or more, preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less.

[0057] The filler / matrix ratio (hereinafter also referred to as "F / M ratio") is preferably 0.5 or more, more preferably 0.6 or more, even more preferably 0.7 or more, and preferably 2.0 or less, more preferably 1.8 or less, even more preferably 1.5 or less. Furthermore, the F / M ratio refers to the mass ratio of component (A) to the total mass of components (B) and (C) [(A) component / ((B) component + (C) component)].

[0058] By using a composition containing a silver component and a second metal component as the curing composition, the metal-containing layer can be disposed between the lens substrate and the inorganic layer as a cured layer obtained by curing the curing composition.

[0059] As a coating method for the curable composition, known coating methods such as spin coating, dip coating, and spray coating can be used. This also applies to the coating of compositions used to form various layers, as described later. The curing treatment can be light irradiation and / or heat treatment. The curing conditions can be determined according to the types of various components contained in the curable composition and the composition of the curable composition. The film thickness of the cured layer obtained by curing the curable composition is, for example, 1 μm or more and 100 μm or less. From the viewpoint of improving the scratch resistance of the surface, the film thickness of the cured layer is preferably 3 μm or more, more preferably 5 μm or more. From the viewpoint of significantly improving scratch resistance, reducing ripple amplitude, and significantly obtaining the suppression effect of interference fringes, the film thickness of the cured layer is further preferably 8 μm or more, even more preferably 10 μm or more, and preferably 80 μm or less, more preferably 60 μm or less, and even more preferably 50 μm or less.

[0060] (Basal layer)

[0061] The aforementioned spectacle lens may have one or more base layers between the lens substrate and the inorganic layer. Furthermore, in one embodiment, one or more base layers may be present between the lens substrate and the cured layer obtained by curing the curable composition, wherein one or more of the base layers and the cured layer may be a metal-containing layer. The number of base layers located between the lens substrate and the inorganic layer, or between the lens substrate and the cured layer obtained by curing the curable composition, may be, for example, one or two layers. Examples of base layers include a layer that functions as an interference fringe suppression layer (e.g., an interference fringe suppression layer referred to as a λ / 4 layer) and a primer layer for improving adhesion. The aforementioned spectacle lens may have one or both of an interference fringe suppression layer and a primer layer between the lens substrate and the inorganic layer, or between the lens substrate and the cured layer of the curable composition.

[0062] Interference fringe suppression layer

[0063] An interference fringe suppression layer is a layer that suppresses the generation of interference fringes compared to a case without this layer. A layer with an optical film thickness of 0.2λ to 0.3λ can function as an interference fringe suppression layer for light with wavelengths λ of 450–650 nm. The film thickness of the interference fringe suppression layer, measured in physical film thickness, can be, for example, in the range of 50 nm to 100 nm.

[0064] An interference fringe suppression layer can be formed, for example, by coating a dispersion containing at least metal oxide particles and resin onto the surface of a lens substrate.

[0065] Metal oxide particles can adjust the refractive index of the interference fringe suppression layer. Examples of metal oxide particles include tungsten oxide (e.g., WO3), zinc oxide (e.g., ZnO), aluminum oxide (e.g., Al2O3), titanium oxide (e.g., TiO2), zirconium oxide (e.g., ZrO2), tin oxide (e.g., SnO2), beryllium oxide (e.g., BeO), and antimony oxide (e.g., Sb2O5). These metal oxide particles can be used alone or in combination of two or more. Furthermore, composite oxide particles containing two or more metal oxides can also be used. From an optical perspective, the particle size of the metal oxide particles is preferably in the range of 5–30 nm. When the interference fringe suppression layer is the aforementioned metal-containing layer and includes zinc oxide and / or zirconium oxide, these oxides can adjust the refractive index and control the silver oxidation process.

[0066] The resin used as the interference fringe suppression layer can be at least one selected from polyurethane resin, acrylic resin, epoxy resin, etc., preferably polyurethane resin, and more preferably an aqueous resin composition containing polyurethane resin, i.e., an aqueous polyurethane resin composition. The aqueous polyurethane resin composition can be prepared, for example, by performing a carbamate reaction on a polyol compound and an organic polyisocyanate compound together with a chain extender in a solvent that is inactive to the reaction and has a high affinity for water to form a prepolymer, and then neutralizing the prepolymer and dispersing it in an aqueous solvent containing a chain extender to increase its molecular weight. For such aqueous polyurethane resin compositions and their preparation methods, please refer to, for example, paragraphs 0009-0013 of Japanese Patent No. 3588375, paragraphs 0012-0021 of Japanese Patent Application Publication No. 8-34897, paragraphs 0010-0033 of Japanese Patent Application Publication No. 11-92653, and paragraphs 0010-0033 of Japanese Patent Application Publication No. 11-92655. Furthermore, as a waterborne polyurethane resin composition, commercially available waterborne polyurethane can be used directly, or it can be diluted with a water-based solvent as needed before use. Examples of commercially available waterborne polyurethane resin compositions include the Evaphanol series manufactured by Nichika Chemical Co., Ltd., the Superflex series manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd., the Adeka BonTighter series manufactured by Adico Co., Ltd., the Olest series manufactured by Mitsui Chemicals Co., Ltd., the Vondic series and Hydran series manufactured by D.E. Co., Ltd., the Impranil series manufactured by Bayer AG, the Soflanate series manufactured by Soflan Co., Ltd., the POIZ series manufactured by Kao Corporation, the SANPLENE series manufactured by Sanyo Chemical Industries, Ltd., the AIZELAX series manufactured by Hodogaya Chemical Industry Co., Ltd., and the NeoRez series manufactured by Zeneca Co., Ltd.

[0067] The dispersion used to form the interference fringe suppression layer may contain an aqueous solvent. An aqueous solvent refers to a solvent containing water, such as water, a mixture of water and a polar solvent, etc., preferably water. From the viewpoint of liquid stability and film-forming properties, the concentration of the solid component in the aqueous resin composition is preferably 1 to 60% by mass, more preferably 5 to 40% by mass.

[0068] In addition to resin components, aqueous resin compositions may also include additives such as antioxidants, dispersants, and plasticizers, as needed. Furthermore, commercially available aqueous resin compositions can be diluted with solvents such as water, ethanol, or propylene glycol monomethyl ether (PGM) before use.

[0069] By using a composition containing both a silver-containing component and a second metal component as the aforementioned aqueous resin composition, the aforementioned metal-containing layer can be provided as a base layer (interference fringe suppression layer) formed from the aqueous resin composition between the lens substrate and the inorganic layer, between the lens substrate and the cured layer obtained by curing the curable composition, or between the lens substrate and the primer layer. By applying the aqueous resin composition to a coated surface (e.g., the surface of the lens substrate) to form a coating layer, and then curing the coating layer by drying (e.g., by a drying process) to remove at least a portion of the aqueous solvent, the base layer (interference fringe suppression layer) can be formed.

[0070] primer layer

[0071] The primer layer can be, for example, an aqueous resin layer formed from an aqueous resin composition containing a resin and an aqueous solvent. The aqueous solvent contained in the aqueous resin composition is, for example, water, a mixture of water and a polar solvent, preferably water. From the viewpoint of liquid stability and film-forming properties, the concentration of the solids component in the aqueous resin composition is preferably 1 to 60% by mass, more preferably 5 to 40% by mass. In addition to the resin component, the aqueous resin composition may, as needed, contain additives such as antioxidants, dispersants, and plasticizers. Furthermore, commercially available aqueous resin compositions can be used after being diluted with solvents such as water, ethanol, or propylene glycol monomethyl ether (PGM).

[0072] The aqueous resin composition can contain resin components either dissolved in an aqueous solvent or dispersed in an aqueous solvent as particles (preferably colloidal particles). Preferably, the resin components are dispersed in an aqueous solvent (preferably in water) in a particulate form. In this case, from the viewpoint of dispersion stability, the particle size of the resin components is preferably 0.3 μm or less. Furthermore, from a stability perspective, the pH value of the aqueous resin composition is preferably around 5.5 to 9.0 at 25°C. From a coating adaptability perspective, the viscosity at a liquid temperature of 25°C is preferably 5 to 500 mPa·s, more preferably 10 to 50 mPa·s. Regarding the resin, refer to the preceding description of resins for interference fringe suppression layers.

[0073] By using a composition containing both a silver-containing component and a second metal component as the aforementioned aqueous resin composition, the aforementioned metal-containing layer can be disposed as a base layer (primer layer) formed from the aqueous resin composition between the lens substrate and the inorganic layer, between the lens substrate and the cured layer obtained by curing the curable composition, between the interference fringe suppression layer and the inorganic layer, or between the interference fringe suppression layer and the cured layer obtained by curing the curable composition. A coating layer is formed by applying the aqueous resin composition to a coated surface (e.g., the surface of the interference fringe suppression layer or the surface of the lens substrate), and the coating layer is cured by drying (e.g., drying treatment) to remove at least a portion of the aqueous solvent, thereby forming the base layer (primer layer). The film thickness of the primer layer can be, for example, in the range of 0.01 to 2.0 μm.

[0074] <Lens Substrate>

[0075] The lens substrate for eyeglass lenses can be either a plastic lens substrate or a glass lens substrate. Glass lens substrates can be, for example, made of inorganic glass. From the viewpoints of being lightweight, not easily broken, and easy to handle, a plastic lens substrate is preferred. Examples of plastic lens substrates include styrene resins (represented by (meth)acrylic resin), polycarbonate resins, allyl resins, allyl diethylene glycol dicarbonate resins (CR-39), vinyl resins, polyester resins, polyether resins, polyurethane resins obtained by reacting isocyanate compounds with hydroxyl compounds such as diethylene glycol, thiopolyurethane resins obtained by reacting isocyanate compounds with polythiols, and cured products (commonly referred to as transparent resins) obtained by curing a curable composition containing a (thio)epoxide compound having one or more disulfide bonds within its molecule. Undyed lens substrates (colorless lenses) or dyed lens substrates (dyed lenses) can be used as lens substrates. The refractive index of the lens substrate can be, for example, around 1.60 to 1.75. However, the refractive index of the lens substrate is not limited to the above range; it can be within the above range or deviate from it. In this invention and this specification, the refractive index refers to the refractive index for light with a wavelength of 500 nm. Furthermore, the lens substrate can be a lens with refractive power (so-called a power lens) or a lens without refractive power (so-called a non-power lens).

[0076] Eyeglass lenses can be various types, including single-focal lenses, multifocal lenses, and progressive lenses. The type of lens is determined by the surface shapes of the two sides of the lens substrate. Furthermore, the surface of the lens substrate can be convex, concave, or flat. In typical lens substrates and eyeglass lenses, the object-side surface is convex, and the eye-side surface is concave. However, the present invention is not limited to this.

[0077] <Inorganic Layer>

[0078] The aforementioned spectacle lens has an inorganic layer on the lens substrate. In this invention and specification, "inorganic layer" refers to a layer containing inorganic matter, preferably a layer containing inorganic matter as a main component. Here, the main component refers to the component that constitutes the largest proportion of the layer, typically about 50% to 100% by mass relative to the layer's mass, and more preferably about 90% to 100% by mass relative to the layer's mass. The same applies to the main components described later. The inorganic layer can be a layer laminated onto the surface of the lens substrate at least with a metal-containing layer in between.

[0079] In one embodiment, the aforementioned inorganic layer can be a multilayer film consisting of two or more inorganic layers. Examples of such multilayer films include those comprising one or more high-refractive-index layers and one or more low-refractive-index layers. This multilayer film can be an antireflective film with the property of preventing the reflection of light of a specific wavelength or a specific wavelength range, or a reflective film with the property of reflecting light of a specific wavelength or a specific wavelength range. In this invention and specification, the terms "high" and "low" in "high refractive index" and "low refractive index" are relative expressions. That is, a high-refractive-index layer refers to a layer with a refractive index higher than that of a low-refractive-index layer contained in the same multilayer film. In other words, a low-refractive-index layer refers to a layer with a refractive index lower than that of a high-refractive-index layer contained in the same multilayer film. The refractive index of the high-refractive-index material constituting the high-refractive-index layer can be, for example, 1.60 or higher (e.g., in the range of 1.60 to 2.40), and the refractive index of the low-refractive-index material constituting the low-refractive-index layer can be, for example, 1.59 or lower (e.g., in the range of 1.37 to 1.59). However, as mentioned above, the terms "high" and "low" in high and low refractive indices are relative, therefore, the refractive indices of high and low refractive index materials are not limited to the ranges described above.

[0080] Specifically, examples of high-refractive-index materials for forming high-refractive-index layers include one or a mixture of two or more oxides selected from zirconium oxide (e.g., ZrO2), tantalum oxide (e.g., Ta2O5), titanium oxide (e.g., TiO2), aluminum oxide (e.g., Al2O3), yttrium oxide (e.g., Y2O3), hafnium oxide (e.g., HfO2), and niobium oxide (e.g., Nb2O5). Conversely, examples of low-refractive-index materials for forming low-refractive-index layers include one or a fluoride selected from silicon oxide (e.g., SiO2), magnesium fluoride (e.g., MgF2), and barium fluoride (e.g., BaF2), or a mixture of two or more oxides or fluorides. In the above examples, for convenience, the oxides and fluorides are expressed in stoichiometric proportions; however, those in a state of oxygen deficiency or fluorine excess according to the stoichiometric proportions can also be used as high-refractive-index or low-refractive-index materials.

[0081] Preferably, the high-refractive-index layer is a film mainly composed of a high-refractive-index material, and the low-refractive-index layer is a film mainly composed of a low-refractive-index material. Such a film (e.g., a vapor-deposited film) can be formed by using a film-forming material (e.g., a vapor-deposited material) mainly composed of the aforementioned high-refractive-index or low-refractive-index material. Sometimes, the film and film-forming material may contain unavoidable impurities. Furthermore, other components, such as other inorganic substances or known additives that assist in film formation, may be included without impairing the function of the main component. Film formation can be performed using known film-forming methods; from the viewpoint of ease of film formation, vapor deposition is preferred, and vacuum vapor deposition is more preferred. The antireflective film can, for example, be a multilayer film with 3 to 10 alternating layers of high-refractive-index and low-refractive-index layers. The thickness of the high-refractive-index layer and the thickness of the low-refractive-index layer can be determined based on the layer structure. In detail, the combination of layers in a multilayer film and the thickness of each layer can be determined using optical design simulations employing known methods, based on the refractive indices of the film-forming materials used to form the high-refractive-index and low-refractive-index layers, and the desired reflection and transmission characteristics that the multilayer film is intended to impart to the eyeglass lens. Furthermore, the multilayer film may include layers primarily composed of conductive oxides (conductive oxide layers) at any location, preferably one or more conductive oxide vapor-deposited films formed by vapor deposition using a vapor deposition material primarily composed of conductive oxides. The thickness of each of the high-refractive-index and low-refractive-index layers in the multilayer film can be, for example, 3–500 nm, and the total thickness of the multilayer film can be, for example, 100–900 nm. Unless otherwise specified, the film thicknesses mentioned in this invention and specification are physical film thicknesses.

[0082] The aforementioned spectacle lenses can contain more than one layer, which is typically included in spectacle lenses, in any location.

[0083] In the aforementioned eyeglass lenses, the metal-containing layer functions as an antibacterial layer, thereby exhibiting antibacterial properties. Furthermore, the inorganic layer functions as, for example, an anti-reflective film, thereby providing the eyeglass lenses with anti-reflective properties against specific wavelengths or ranges of light.

[0084] [Glasses]

[0085] One aspect of the present invention relates to eyeglasses having the aforementioned spectacle lenses. Details regarding the spectacle lenses included in such eyeglasses are as described above. For the aforementioned eyeglasses, the structure of the frame, etc., can be constructed using known techniques.

[0086] Example

[0087] The present invention will be further described below through embodiments. However, the present invention is not limited to the embodiments shown in the embodiments.

[0088] [Contains metallic components]

[0089] The "silver particles" listed in the "metallic composition" column of Table 1 are silver particles with a particle size of 2-5 nm (so-called silver nanoparticles).

[0090] The "platinum particles" listed in the "Metallic Composition" column of Table 1 are platinum particles with a particle size of 2-5 nm (so-called platinum nanoparticles).

[0091] The "Silver Oxide Particles" listed in the "Metal Content" column of Table 1 are ATOMY BALL-(UA) (an aqueous dispersion containing particles of silver oxide, silicon oxide, and aluminum oxide, with a particle size of 15 nm) manufactured by Nippon Kaisha Chemical Co., Ltd. The percentages listed in Table 1 represent the percentages of silver oxide. This is also true for the percentages described later in Examples 1, 2, and Comparative Example 1.

[0092] [Refer to the fabrication of lens 1]

[0093] <Plastic Lens Substrate>

[0094] As the base material for the plastic lens, eyeglass plastic lenses (trade name EYNOA, refractive index 1.67) manufactured by HOYA Corporation were used.

[0095] <Interference fringe suppression layer (λ / 4 layer)>

[0096] 126g of 4-hydroxy-4-methyl-2-pentanone (DAA) and 350.5g of water were added to 305.0g of methanol. Then, 217.5g of thermoplastic resin (Superflex 170 manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.), 90.0g of a 40% by mass sol-like material (ZrO2 sol) obtained by dispersing HZ-407MH manufactured by Nissan Chemical Industries, Ltd. in methanol, and 1.0g of leveling agent (Y-7006 manufactured by Toray Dow Corning Co., Ltd.) were added. The mixture was stirred at 20°C for 1 hour and then filtered to obtain a λ / 4 layer solution.

[0097] The obtained λ / 4 layer liquid was applied to the surface of the cleaned plastic lens substrate by spin coating and dried and cured in a drying device with an internal temperature of 100°C for 20 minutes, forming λ / 4 layers on both sides of the lens substrate.

[0098] <Primer Layer>

[0099] Add 126g of 4-hydroxy-4-methyl-2-pentanone (DAA) and 350.5g of water to 305.0g of methanol, then add 217.5g of thermoplastic resin (Superflex170 manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.) and 1.0g of leveling agent (Y-7006 manufactured by Toray Dow Corning Co., Ltd.), and stir at 20°C for 24 hours to obtain the primer liquid.

[0100] The obtained primer liquid was applied to the surface of the λ / 4 layer by immersion method and dried and cured in a drying device with an internal atmosphere temperature of 100°C for 20 minutes to form primer layers on both sides of the lens substrate.

[0101] <Hard coating>

[0102] A hard coating liquid was prepared by mixing 52 parts by weight of silica particles, 24 parts by weight of silane coupling agent (KBM-403 manufactured by Shin-Etsu Chemical Industry Co., Ltd., γ-glycidyl ether oxypropyltrimethoxysilane) and 24 parts by weight of polyfunctional epoxy compound (Denacol EX-321 manufactured by Nagase ChemteX Co., Ltd., trimethylolpropane polyglycidyl ether).

[0103] The prepared hard coating liquid was applied to the surface of the primer layer on both sides of the lens substrate by spraying. It was pre-cured by heating in a heating oven with an internal atmosphere temperature of 75°C for 20 minutes. Then, the internal atmosphere temperature of the heating oven was raised to 110°C and heated at the same temperature for 2 hours for formal curing, forming a hard coating on both sides of the lens substrate.

[0104] <Inorganic layer (multi-layer anti-reflective film)>

[0105] Next, the lens substrate with the aforementioned hard coating is placed in a vacuum evaporation apparatus, and a multilayer antireflective film (total thickness: approximately 400–600 nm) is formed on the surface of the hard coating by vacuum evaporation, consisting of eight alternating layers of SiO2 and ZrO2. The SiO2 layers are vapor-deposited films formed using silicon oxide as the vapor deposition material, and the ZrO2 layers are vapor-deposited films formed using zirconium oxide as the vapor deposition material. Except for unavoidable impurities, each vapor deposition material is composed solely of the described oxides.

[0106] Through the above process, eyeglass lenses are made with λ / 4 layer, primer layer, hard coating layer and multi-layer anti-reflective film on both sides of the lens substrate.

[0107] [Refer to Examples 1-4, 7-9]

[0108] In Reference Examples 1 and 2, which are listed as "λ / 4 layer" in the "Metallic Layer" column of Table 1, the metallic components shown in Table 1 are contained in the λ / 4 layer liquid at a content of 100% by mass relative to the total of all components of the λ / 4 layer liquid (excluding solvent). Otherwise, the spectacle lens is manufactured using the method described in Reference Lens 1.

[0109] In Reference Examples 3 and 4, which list "primer layer" in the "Metallic layer" column of Table 1, the primer liquid contains the metallic components shown in Table 1 at a content of 100% by mass relative to the total of all components of the primer liquid (excluding solvents). Otherwise, the spectacle lens is manufactured using the method described in Reference Lens 1.

[0110] In Reference Examples 7 and 8, which list "hard coating" in the "metallic layer" column of Table 1, the hard coating liquid contains the metallic components shown in Table 1 at a content rate of 100% by mass relative to the total of all components of the hard coating liquid, otherwise, the spectacle lens is made using the method described in Reference Lens 1.

[0111] [Refer to lens 2]

[0112] A hard coating solution was prepared by mixing 44 parts by weight of silica particles, 39 parts by weight of silane coupling agent (KBM-403 manufactured by Shin-Etsu Chemical Industry Co., Ltd., γ-glycidyl ether oxypropyltrimethoxysilane) and 17 parts by weight of polyfunctional epoxy compound (Denacol EX-321 manufactured by Nagase ChemteX Co., Ltd., trimethylolpropane polyglycidyl ether). Otherwise, spectacle lenses were manufactured using the method described in reference lens 1.

[0113] [Refer to Examples 5 and 6]

[0114] The hard coating solution contains the metal-containing components shown in Table 1 at a content rate of 100% by mass relative to the total components of the hard coating solution, as shown in Table 1. Otherwise, the spectacle lens is manufactured using the method described in reference lens 2.

[0115] [Antibacterial test]

[0116] The antimicrobial test was performed in accordance with JIS Z 2801:2012. Reference lens 1 was used as the reference sample in Examples 1-4 and 7-9, and reference lens 2 was used as the reference sample in Examples 6 and 7.

[0117] The antimicrobial evaluation results shown in the “Initial” column of Table 1 are the results of the antimicrobial evaluation of test pieces cut from spectacle lenses that have never undergone lightfastness and water resistance tests, using the following methods.

[0118] Regarding the lightfastness of the antimicrobial properties shown in Table 1, the test pieces cut from each spectacle lens were subjected to the Class 1 lightfastness test described in the chapter on lightfastness testing of the SIAA (Association for Antimicrobial Products Technology) Continuous Testing Method (2018 edition), and then the antimicrobial properties were evaluated by the following method.

[0119] Regarding water resistance in antimicrobial properties, the test pieces cut from each spectacle lens were subjected to the Class 1 water resistance test described in the chapter on water resistance testing of the SIAA (Institute for Antimicrobial Technology) Continuous Testing Method (2018 edition), and then the antimicrobial properties were evaluated by the following method.

[0120] Place 50mm × 50mm test pieces (test pieces cut from each spectacle lens of the reference example and its reference sample) into a sterile petri dish, and then drop 0.4mL of solution containing 1.0 × 10⁻⁶ ppm of sodium bicarbonate into the center of the test piece. 5 ~4.0×10 5 A bacterial suspension of one test bacterium (Staphylococcus aureus or Escherichia coli) was covered with a polyethylene film cut into 40mm × 40mm pieces. After incubating the petri dish at a relative humidity of over 90% for 24 hours, the bacterial count was measured per 1cm. 2 The number of viable bacteria was used to calculate the following antibacterial activity values.

[0121] Antibacterial activity value = ∪t - At ≥ 2.0

[0122] Ut: Unprocessed test specimens (reference sample) incubated for 24 hours, per 1cm 2 The average of the logarithmic values ​​of the viable bacteria count

[0123] At: Antibacterial processing test tablets (reference sample) were incubated for 24 hours, and each 1cm... 2 The average of the logarithmic values ​​of the viable bacteria count

[0124] SIAA (Institute of Antimicrobial Technology) stipulates that a product has an antimicrobial effect if its antimicrobial activity value is 2 or higher. Therefore, the antimicrobial properties of each eyeglass lens are determined based on the antimicrobial activity value obtained above, according to the following criteria.

[0125] OK: Antibacterial activity value is above 2.0

[0126] NG: Antibacterial activity value less than 2.0

[0127] [Table 1]

[0128]

[0129] The results shown in Table 1 confirm that the eyeglass lenses of Reference Examples 1 to 9, which have a metal layer containing silver, exhibit excellent light resistance and water resistance in terms of antibacterial properties.

[0130] [Comparative Example 1]

[0131] The hard coating solution contains 0.04% by mass of silver oxide particles used in Reference Example 3 and 0.02% by mass of platinum particles used in Reference Example 4, etc., relative to 100% by mass of all components of the hard coating solution. Otherwise, the spectacle lens is made using the method described in Reference Lens 2.

[0132] [Example 1]

[0133] The hard coating solution contains 0.4% by mass of zirconium oxide particles (average particle size: about 30 nm) relative to 100% by mass of all components of the hard coating solution. Otherwise, spectacle lenses are made using the method described in Comparative Example 1.

[0134] [Example 2]

[0135] The content of zirconium oxide particles in the hard coating solution was changed to 0.6% by mass, and the spectacle lens was otherwise made using the method described in Example 1.

[0136] [Evaluation of the combined use of silver-containing and second metal-containing compounds]

[0137] <Evaluation on the inhibition of yellowing>

[0138] Each spectacle lens of Examples 1, 2 and Comparative Example 1 was irradiated with 0.20W ultraviolet light for 4 hours in a QUV ultraviolet fluorescent tube accelerated weathering tester manufactured by Q-Lab Co., Ltd., and then placed in a high humidity environment (relative humidity 90%) for 4 hours. This was repeated 21 times as one cycle, and then the YI value was measured.

[0139] The YI value was determined using the following method.

[0140] The perpendicular incident reflection spectral characteristics at the optical center of the object-side surface (convex side) of the spectacle lens are measured from the object side. Using the measured perpendicular incident transmission spectral characteristics, the YI value is calculated according to JIS K7373:2006. Specifically, X, Y, and Z are calculated from the transmission spectrum obtained from the measurement of the perpendicular incident transmission spectral characteristics according to equation (3) of JIS Z 8701:1999, and the YI value relative to the D65 light source is calculated according to the calculation formula in section 6.1 of JIS K 7373:2006. The smaller the YI value, the less yellowing it indicates.

[0141] Figure 1 This graph is obtained by plotting the YI value relative to the content of zirconium oxide particles (ZrO2) in the hard coating solution. Figure 1It can be confirmed that the more zirconium oxide particles a spectacle lens contains as a second metal component, the lower the YI value after the QUV accelerated weathering test. In other words, yellowing of spectacle lenses containing silver components is suppressed.

[0142] <Evaluation of Membrane Performance>

[0143] For each spectacle lens of Comparative Example 1, Example 1, and Example 2, the various items shown in Table 2 were evaluated using the following methods. The evaluation results shown in Table 2 confirm that the film performance did not decrease with the addition of the second metal component and the increase in its amount.

[0144] (Initial tightness)

[0145] The fit was evaluated based on JIS K5600-5-6 (ISO 2409:1992). Specifically, after introducing 10×10 square cuts on the surface of each spectacle lens, three peel tests were performed using cellophane tape, and the remaining squares out of 100 were counted.

[0146] (Initial abrasion resistance)

[0147] A 1kg load of steel wool #0000 (manufactured by Japan Steel Wool Co., Ltd.) was applied back and forth 20 times to the surface of the spectacle lens, and then the scratch resistance of the spectacle lens surface was visually assessed. The assessment criteria are as follows. It should be noted that "UA-A" in Table 2 indicates that: for multiple spectacle lenses manufactured in the same way, the above method was used to evaluate the scratch resistance, and the result was that a very small number of spectacle lenses were assessed as A, while the rest were assessed as UA.

[0148] UA: Almost no scratches

[0149] A: There are 1 to 10 scratches.

[0150] B: There are 11 to 30 scratches.

[0151] C: The surface is blurry and unclear.

[0152] (Sealing and abrasion resistance after constant temperature and humidity test)

[0153] After storing the spectacle lenses at 40°C and 90% relative humidity for 168 hours, the fit and abrasion resistance of the spectacle lenses were evaluated using the method described above.

[0154] (Adhesion and abrasion resistance after QUV accelerated lightfastness test)

[0155] After irradiating the eyeglass lenses with 0.20W ultraviolet light for 4 hours in a QUV ultraviolet fluorescent tube accelerated weathering tester manufactured by Q-Lab Co., Ltd., they were placed in a high humidity environment (relative humidity 90%) for 4 hours. This was repeated 21 times as one cycle, and then the fit was evaluated using the method described above.

[0156] [Table 2]

[0157]

[0158] Finally, the above aspects will be summarized.

[0159] According to one aspect, an eyeglass lens may be provided, having a lens substrate and an inorganic layer, wherein a metal-containing layer is further provided between the lens substrate and the inorganic layer, the metal-containing layer comprising silver and one or more metals selected from cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold and palladium.

[0160] The aforementioned eyeglass lenses can be eyeglass lenses with a layer containing silver as a metal, and can suppress discoloration after long-term use.

[0161] In one embodiment, the metal contained in the metal-containing layer may include one or more metals selected from zirconium, gold, and palladium.

[0162] In one embodiment, the metal contained in the aforementioned metal-containing layer may include zirconium.

[0163] In one embodiment, the spectacle lens may sequentially comprise the lens substrate, a cured layer obtained by curing a curable composition, and the inorganic layer, wherein the metal-containing layer may be the cured layer.

[0164] According to one aspect, eyeglasses having the above-described spectacle lenses can be provided.

[0165] The various aspects and methods described in this specification enable the combination of two or more items in any combination.

[0166] The embodiments disclosed herein should be considered illustrative in all respects and not restrictive. The scope of the invention is defined not by the foregoing description but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0167] Industrial availability

[0168] One aspect of the present invention is useful in the field of eyeglass lens and eyeglass manufacturing.

Claims

1. A spectacle lens, comprising a lens substrate and an inorganic layer, A metal layer is also present between the lens substrate and the inorganic layer. The inorganic layer is a multilayer film consisting of two or more inorganic layers. The multilayer film comprises one or more high refractive index layers and low refractive index layers; The metal contained in the metal-containing layer is Silver, and Selected from one or more metals including cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold, and palladium. The silver is the first metal, and the metals selected from one or more of cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold, and palladium are the second metals. The metal-containing layer is a curing layer, an interference fringe suppression layer, or a primer layer. The cured layer is obtained by curing a curable composition containing silicon oxide particles, silane compounds, silver-containing components, and the second metal component. The interference fringe suppression layer is formed from an aqueous resin composition comprising metal oxide particles, resin, an aqueous solvent, a silver-containing component, and an aqueous resin containing the second metal component. The primer layer is formed from an aqueous resin composition comprising a resin, an aqueous solvent, a silver-containing component, and a second metal component.

2. The spectacle lens according to claim 1, wherein, The second metal contained in the metal-containing layer comprises one or more metals selected from zirconium, gold, and palladium.

3. The spectacle lens according to claim 1 or 2, wherein, The second metal contained in the metal-containing layer includes zirconium.

4. The spectacle lens according to claim 1 or 2, wherein, The metal in the metal-containing layer is selected from one or more of the following forms: element, alloy, inorganic compound, organic compound, ion, and complex.

5. The spectacle lens according to claim 4, wherein, The inorganic compound is an inorganic oxide.

6. The spectacle lens according to claim 1 or 2, wherein, At least a portion of the silver is ionized through oxidation.

7. The spectacle lens according to claim 1 or 2, wherein, The metal-containing layer is a layer that is directly deposited on the lens substrate by a film-forming method selected from wet film-forming methods and dry film-forming methods, or indirectly deposited in the presence of one or more other layers deposited on the lens substrate.

8. The spectacle lens according to claim 7, wherein, When the total amount of the film-forming material excluding solvent is taken as 100% by mass, the total content of the metal-containing components selected from the component containing silver as the first metal and the component containing the second metal is 0.100% by mass or more and 1.500% by mass or less.

9. The spectacle lens according to claim 8, wherein, When the total amount of the film-forming material excluding solvent is taken as 100% by mass, the total content of the metal-containing components selected from the component containing silver as the first metal and the component containing the second metal is 0.300% by mass or more and 1.300% by mass or less.

10. The spectacle lens according to claim 8, wherein, When the total amount of the film-forming material excluding solvent is taken as 100% by mass, the total content of the metal-containing components selected from the component containing silver as the first metal and the component containing the second metal is 0.500% by mass or more and 1.000% by mass or less.

11. The spectacle lens according to claim 8, wherein, The second metallic component is in an amount of 0.01 to 100 times the amount of silver, based on a mass standard.

12. The spectacle lens according to claim 1 or 2, wherein, The metal-containing layer further contains a metal component including platinum as a third metal.

13. The spectacle lens according to claim 12, wherein, The metal component containing platinum as a third metal is, on a mass basis, 0.01 to 10 times the amount of the silver component.

14. The spectacle lens according to claim 1 or 2, wherein, The spectacle lens sequentially comprises the lens substrate, a cured layer obtained by curing a curable composition, and the inorganic layer. The metal-containing layer is the cured layer.

15. A pair of eyeglasses having the lens of any one of claims 1 to 14.

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