eyeglass lenses

Abstract

To achieve both visibility and anti-glare properties while maintaining contrast in the field of view. The spectacle lens of the present disclosure has a substrate containing a resin (A), and a layer X1 disposed on the substrate and containing at least one element selected from Ti, Zr, and Sn.

Description

[Technical Field]

[0001] The present disclosure relates to eyeglass lenses. [Background technology]

[0002] Patent Document 1 describes a plastic eyeglass lens containing an organic dye as an eyeglass lens. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-134618 Summary of the Invention [Problem to be solved by the invention]

[0004] With conventionally known spectacle lenses, it has been difficult to achieve both visibility and anti-glare properties to a satisfactory degree while maintaining contrast in the field of view, and this tendency has been particularly pronounced in dark fields.

[0005] The present disclosure has been made in consideration of the above circumstances, and aims to achieve both visibility and anti-glare properties while maintaining contrast in the field of view, preferably to achieve both visibility and anti-glare properties while maintaining contrast in the field of view even in a dark field. [Means for solving the problem]

[0006] The present disclosure includes the following aspects. [1] A substrate containing a resin (A); a layer X1 disposed on the substrate and containing at least one element selected from Ti, Zr, and Sn. [2] The eyeglass lens according to [1], wherein in the layer X1, when measured by X-ray fluorescence analysis, a proportion of X-ray photons attributable to Ti out of a total of 100 cps of X-ray photons attributable to elements with an atomic number of 20 or higher is 80 cps or more. [3] The eyeglass lens according to [1] or [2], wherein in the layer X1, when measured by X-ray fluorescence analysis, a proportion of X-ray photons attributable to Zr is 5 cps or more out of a total of 100 cps of X-ray photons attributable to elements with an atomic number of 20 or more. [4] The spectacle lens according to any one of [1] to [3], wherein in the layer X1, when measured by X-ray fluorescence analysis, a proportion of X-ray photons attributable to Sn is 0.1 cps or more and less than 2 cps out of a total of 100 cps of X-ray photons attributable to elements with an atomic number of 20 or more. [5] The spectacle lens according to any one of [1] to [4], wherein the resin contains a reaction product of a compound (a1) having two or more active hydrogen atoms in one molecule and a compound (a2) having two or more iso(thio)cyanate groups in one molecule. [6] The spectacle lens according to any one of [1] to [5], wherein the substrate further contains a dye (B). [7] The spectacle lens according to [6], wherein the dye (B) comprises a dye (B1) having a maximum absorption peak in the wavelength region of 550 nm or more and 650 nm or less in the visible absorption spectrum. [8] The spectacle lens according to [7], wherein the dye (B1) includes a compound having a tetraazaporphyrin skeleton. [9] The compound having a tetraazaporphyrin skeleton is represented by the following formula (1): [ka] [In formula (1), R1 to R8 each independently represent 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, a C1-20 alkyl group, a C1-20 halogenoalkyl group, a C2-20 alkoxyalkyl group, a C1-20 alkoxy group, a C2-20 alkoxyalkoxy group, a C6-20 aryloxy group, a C1-20 acyl group, a C2-20 alkoxycarbonyl group, a C2-20 alkylaminocarbonyl group, a C3-20 dialkylaminocarbonyl group, a C2-20 alkylcarbonylamino group, represents a C7-20 arylcarbonylamino group, a C1-20 monoalkylamino group, a C2-20 dialkylamino group, a C7-20 arylaminocarbonyl group, a C7-20 aryloxycarbonyl group, a C7-20 aralkyl group, a C7-20 aryl group, a heteroaryl group, a C1-20 alkylthio group, a C6-20 arylthio group, a C3-20 alkenyloxycarbonyl group, or a C2-20 alkenyl group; R1 and R2, R3 and R4, R5 and R6, and R7 and R8 may each, as a linking group, form a ring excluding an aromatic ring. M represents two hydrogen atoms, a divalent metal atom, a trivalent monosubstituted metal atom, a tetravalent disubstituted metal atom, or an oxymetal atom. The eyeglass lens according to [8], comprising a compound represented by the formula:

[10] The spectacle lens according to any one of [1] to [9], wherein the substrate further contains an ultraviolet absorber (C).

[11] The spectacle lens according to any one of [1] to

[10] , wherein the spherical power S is not less than -1.0D and not more than 0D.

[12] The eyeglass lens according to any one of [1] to

[11] , further comprising a polarizing layer.

[13] Further, a layer X2 different from the layer X1 is provided, The spectacle lens according to any one of [1] to

[12] , wherein the layer X2 includes at least one layer selected from an antifouling layer, an antireflection layer, an antiglare layer, an antifogging layer, and a photochromic layer.

[14] A pair of eyeglasses comprising the eyeglass lens according to any one of [1] to

[13] . [Effects of the Invention]

[0007] According to the present disclosure, it is possible to achieve both visibility and anti-glare properties while maintaining the contrast of the field of view, and preferably, it is possible to achieve both visibility and anti-glare properties while maintaining the contrast of the field of view in a dark field. DETAILED DESCRIPTION OF THE INVENTION

[0008] The spectacle lens of the present disclosure has a substrate containing a resin (A), and a layer X1 disposed on the substrate and containing at least one element selected from Ti, Zr, and Sn.

[0009] The spectacle lenses of the present disclosure can achieve both visibility and anti-glare properties while maintaining contrast in the field of view, and preferably can achieve both visibility and anti-glare properties while maintaining contrast in the field of view, even in a dark field. Although the present disclosure should not be interpreted as being limited to a particular theory, the reason why the spectacle lenses of the present disclosure can achieve the above-mentioned effects is thought to be as follows. That is, the spectacle lenses of the present disclosure have a layer X1 containing at least one element selected from Ti, Zr, and Sn, and therefore incident light is controlled in the layer, and therefore can achieve both visibility and anti-glare properties while maintaining contrast in the field of view, and preferably can achieve both visibility and anti-glare properties while maintaining contrast in the field of view, even in a dark field.

[0010] (base material) The substrate contains a resin (A).

[0011] Examples of the resin (A) include (meth)acrylic resins, polystyrene resins, vinyl resins, diallyl phthalate resins, polyester resins, polyphenylene ether resins, (thio)urethane resins, polycarbonate resins, polyamide resins, cycloolefin (co)polymers, poly(thio)epoxy resins, etc. Among these, (thio)urethane resins are preferred.

[0012] The refractive index (nD) of the resin (A) at 25°C for sodium D lines at 1 atmosphere (1,013 hpa) and 20°C is preferably 1.5 or more, more preferably 1.6 or more, and may be, for example, 3.0 or less, or even 2.5 or less.

[0013] The Abbe number of the resin (A) at 1 atmosphere (1,013 hpa) and 20° C. is preferably 25 or more, more preferably 30 or more, and may be, for example, 60 or less.

[0014] The density of the resin (A) is preferably 0.9 to 2.2 g / cm 3 , more preferably 0.9 to 1.5 g / cm 3 or less, and even more preferably 1.0 to 1.4 g / cm 3 .

[0015] In one embodiment, the resin (A) preferably contains a (thio)urethane resin (A1). The (thio)urethane resin (A1) preferably contains a reaction product of a compound (a1) having two or more active hydrogen atoms in one molecule with a compound (a2) having two or more iso(thio)cyanate groups in one molecule.

[0016] The compound (a1) having two or more active hydrogen atoms in one molecule includes a compound having -SH and -OH as a group having an active hydrogen atom, specifically a compound having two or more -SH and / or -OH in one molecule and a polyamine. The compound having two or more -SH and / or -OH in one molecule includes a polyol, a polythiol, and a compound having -OH and -SH.

[0017] In a compound having two or more -SH and / or -OH groups in one molecule, the number of -SH and / or -OH groups is two or more, preferably 2 to 5, per molecule.

[0018] Examples of the polyol include aliphatic diols such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, and butylene glycol; alicyclic diols such as cyclopentanediol, cyclohexanediol, cyclohexanedimethanol, hydroxypropylcyclohexanol, norbornanediol, norbornanedimethanol, tricyclo[5.2.1.02,6]diol, and tricyclo[5.2.1.02,6]dimethanol; aromatic diols such as dihydroxybenzene, bisphenol A, bisphenol F, fully hydrogenated bisphenol A, and fully hydrogenated bisphenol F; and aliphatic diols of the aromatic diols. trifunctional or higher aliphatic polyols such as glycerin, trimethylolethane, trimethylolpropane, hexanetriol, tris(2-hydroxyethyl)isocyanurate, tris(2-hydroxypropyl)isocyanurate, diglycerin, erythritol, pentaerythritol, sorbitol, mannitol, dipentaerythritol, and tripentaerythritol; trifunctional or higher alicyclic diols such as 1,2-dimethylglucoside; trifunctional or higher aromatic polyols such as benzenetriol; and glycolic acid or hydroxypropionic acid esters of these (aliphatic diols, alicyclic diols, aromatic diols, trifunctional or higher aliphatic polyols, and trifunctional or higher aromatic polyols).

[0019] Examples of the polythiol include methanedithiol, 1,2-ethanedithiol, bis(2-mercaptoethyl) ether, bis(mercaptomethyl) sulfide, bis(mercaptomethyl) disulfide, bis(2-mercaptoethyl) sulfide, bis(2-mercaptoethyl) disulfide, bis(3-mercaptopropyl) sulfide, bis(3-mercaptomethylthio)methane, bis(2-mercaptoethylthio)methane, bis(3-mercaptopropylthio)methane, 1,2-bis(mercaptomethyl aliphatic dithiols such as 1,2-bis(2-mercaptoethylthio)ethane, 1,2-bis(3-mercaptopropylthio)ethane, 1,2,3-tris(mercaptomethylthio)propane, and bis(2,3-dimercaptopropyl) sulfide; diethylene glycol bis(2-mercaptoacetate), diethylene glycol bis(3-mercaptopropionate), ethylene glycol bis(2-mercaptoacetate), ethylene glycol bis(3-mercaptopropionate), and trime Trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), trimethylolethane tris(2-mercaptoacetate), trimethylolethane tris(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), pentaerythritol tetrakis(3-mercaptopropionate), dihydroxymethyl sulfide bis(2-mercaptoacetate), dihydroxymethyl sulfide bis(3-mercaptoacetate) mercaptocarboxylic acid esters of polyols such as dihydroxyethyl disulfide bis(2-mercaptopropionate), dihydroxyethyl sulfide bis(3-mercaptopropionate), dihydroxymethyl disulfide bis(2-mercaptoacetate), dihydroxymethyl disulfide bis(3-mercaptopropionate), dihydroxyethyl disulfide bis(2-mercaptoacetate), and dihydroxyethyl disulfide bis(3-mercaptopropionate);Thiols and dithiols such as di(2-mercaptoethyl) ether bis(2-mercaptoacetate), di(2-mercaptoethyl) ether bis(3-mercaptopropionate), dithiodiglycolic acid bis(2-mercaptoethyl ester), dithiodipropionic acid bis(2-mercaptoethyl ester), dithiodiglycolic acid bis(2-mercaptoethyl ester), and dithiodipropionic acid bis(2-mercaptoethyl ester) Esters with dicarboxylic acids; alicyclic dithiols such as 1,2-cyclohexanedithiol, 2,5-dimercapto-1,4-dithiane, 2,5-dimercaptomethyl-1,4-dithiane, 2,5-dimercaptomethyl-2,5-dimethyl-1,4-dithiane, and 4,6-bis(mercaptomethylthio)-1,3-dithiane; 1,2,3-propanetrithiol, tris(mercaptomethylthio)methane, and tris(mercaptoethylthio)methane 1,2,3-tris(2-mercaptoethylthio)propane, 1,2,3-tris(3-mercaptopropylthio)propane, 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, tetrakis(mercaptomethyl)methane, 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane aliphatic polythiols with three or more functional groups, such as 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, tetrakis(mercaptomethylthiomethyl)methane, tetrakis(2-mercaptoethylthiomethyl)methane, tetrakis(3-mercaptopropylthiomethyl)methane, 1,1,3,3-tetrakis(mercaptomethylthio)propane, and 1,1,2,2-tetrakis(mercaptomethylthio)ethane;1,2-Dimercaptobenzene, 1,3-Dimercaptobenzene, 1,4-Dimercaptobenzene, 1,2-Bis(mercaptomethyl)benzene, 1,3-Bis(mercaptomethyl)benzene, 1,4-Bis(mercaptomethyl)benzene, 1,2-Bis(mercaptoethyl)benzene, 1,3-Bis(mercaptoethyl)benzene, 1,4-Bis(mercaptoethyl)benzene, 1,3,5-Trimercaptobenzene, 1,3,5-Tris(mercaptomethyl)benzene, 1,3,5-Tris(mercaptomethyleneoxy)benzene, 1,3,5-Tris(mercaptoethyleneoxy)benzene, 2,5-Toluenedithiol, 3,4-Toluenedithiol, 1,5- Examples of such polythiols include aromatic polythiols such as naphthalenedithiol and 2,6-naphthalenedithiol; heterocyclic polythiols such as 2-methylamino-4,6-dithiol-sym-triazine, 3,4-thiophenedithiol, bismuthiol, 4,6-bis(mercaptomethylthio)-1,3-dithiane, and 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane; and esters of these (aliphatic dithiols, mercaptocarboxylic acid esters of polyols, esters of thiols and dithiocarboxylic acids, alicyclic dithiols, tri- or higher functional aliphatic polythiols, aromatic polythiols, and heterocyclic polythiols) with thioglycolic acid and / or mercaptopropionic acid.

[0020] Compounds having -OH and -SH include 2-mercaptoethanol, 3-mercapto-1,2-propanediol, glycerin di(mercaptoacetate), 4-mercaptophenol, 2,3-dimercapto-1-propanol, pentaerythritol tris(3-mercaptopropionate), and pentaerythritol tris(thioglycolate).

[0021] The polyamine refers to a compound having two or more amino groups per molecule. Examples of the amino group include a primary amino group, a secondary amino group, and a tertiary amino group, with a primary amino group or a secondary amino group being preferred, and a primary amino group being more preferred. The number of amino groups per molecule is two or more, preferably 2 to 5, more preferably 2 to 3, and particularly preferably 2.

[0022] Examples of the polyamine include aliphatic polyamines such as ethylenediamine, pentamethylenediamine, hexamethylenediamine, diethylenetriamine, polypropylenediamine, and triethylenetetraamine; alicyclic polyamines such as isophoronediamine; alkanolpolyamines such as triethanolamine, tripropanolamine, and triisopropanolamine; aromatic polyamines; alicyclic diamines such as isophoronediamine, bis(aminomethyl)cyclohexane, bis(aminocyclohexyl)methane, 2,5-bis(aminomethyl)bicyclo-[2.2.1]-heptane, and 2,6-bis(aminomethyl)bicyclo-[2.2.1]-heptane; and tri- or higher functional polyamines such as tolylenediamine.

[0023] The aromatic polyamine is typically a compound having an aromatic hydrocarbon group and two or more amino groups (preferably primary amino groups), and preferably includes an aromatic diamine.

[0024] The aromatic diamine is preferably represented by the following formula (2-1): [ka] [In formula (2-1), A represents a divalent C6-20 aromatic ring-containing group; Each R21 independently represents a hydrogen atom or a C1-20 alkyl group. The compound includes a compound represented by the formula:

[0025] The C1-20 alkyl group represented by R21 may be either linear or branched, and is preferably a linear or branched C1-10 alkyl group, more preferably a linear or branched C1-5 alkyl group, and even more preferably a linear C1-3 alkyl group. R21 is preferably a hydrogen atom.

[0026] The divalent group containing 6 to 20 aromatic rings represented by A may be monocyclic or polycyclic, and if it is polycyclic, two or more rings may be condensed, and the two or more rings may be linked by a single bond or a divalent linking group.

[0027] A includes monocyclic aromatic hydrocarbon groups such as a phenylene group, a tolylene group, a dimethylthiotolylene group, a m-xylylene group, and a p-xylylene group; a naphthylene group, and a group represented by the following formula (2-2): [ka] [In formula (2-2), R22 represents one selected from a single bond; -SO2-; -COO-, a C1-20 alkylene group; and a group in which -CH2- in a C1-20 alkylene group is replaced with one selected from -O- and -CO-; R23 and R24 each independently represent one selected from the group consisting of -COOR25; F; Br; Cl; a C1-20 alkyl group; and a C1-20 (poly)mercaptoalkyl group; R25 represents a C1-20 alkyl group. and groups having a polycyclic aromatic ring represented by the following formula:

[0028] The C1-20 alkylene group represented by R22 may be either linear or branched, and is preferably a linear or branched C1-10 alkylene group, more preferably a linear or branched C1-5 alkylene group, even more preferably a linear C1-3 alkylene group, and particularly preferably a methylene group.

[0029] Examples of the group represented by R22 in which one -CH2- in a C1-20 alkylene group is replaced by one selected from -O- and -CO- include -COO-R26-OCO-, -O-R26-O-, and -R26-O-R26-, where R26 represents a C1-20 alkylene group.

[0030] The C1-20 alkylene group represented by R26 may be either linear or branched, and is preferably a linear or branched C1-10 alkylene group, more preferably a linear or branched C1-5 alkylene group.

[0031] In addition, in a group in which -CH2- contained in a C1-20 alkylene group is replaced by one selected from -O- and -CO-, adjacent -CH2- are not simultaneously replaced by -O-, and adjacent -CH2- are not simultaneously replaced by -CO-.

[0032] R22 is preferably one selected from a single bond, -SO2- and a C1-20 alkylene group, more preferably a C1-20 alkylene group, even more preferably a linear C1-3 alkylene group, and particularly preferably a methylene group.

[0033] The C1-20 alkyl group represented by R23, R24, and R25 may be either linear or branched, and is preferably a linear or branched C1-10 alkyl group, more preferably a linear or branched C1-5 alkyl group, and even more preferably a linear C1-3 alkyl group.

[0034] The C1-20 (poly)mercaptoalkyl group represented by R25 may be either linear or branched, and is preferably a linear or branched C1-10 (poly)mercaptoalkyl group, more preferably a linear or branched C1-5 (poly)mercaptoalkyl group, and even more preferably a linear C1-3 (poly)mercaptoalkyl group. The C1-20 (poly)mercaptoalkyl group represented by R25 contains one or more mercapto groups, preferably 1 to 5, and more preferably 1 to 3.

[0035] R25 is preferably one selected from F, Br, Cl and a C1-20 (poly)mercaptoalkyl group represented by C1-20R25, more preferably one selected from Cl and a C1-20 (poly)mercaptoalkyl group, and even more preferably Cl.

[0036] The aromatic diamine is preferably represented by the following formula (2-3): [ka] [In the formula, R22, R23, and R24 are as defined above.] It is preferable that the compound contains a compound represented by the following formula:

[0037] Examples of aromatic polyamines include phenylenediamine; monocyclic aromatic diamines such as m-xylylenediamine, p-xylylenediamine, dimethyl(thio)toluenediamine, 3,5-dimethylthio-2,6-diaminotoluene, and 2,6-bis(methylthio)-4-methyl-1,3-benzenediamine; 4,4'-bis(2-methylenebisaniline), 4,4'-methylenebis(2-chloroaniline), propanediol bis(p-aminobenzoate), and [4-(4-aminobenzoyl)oxyphenyl]4-amino benzoate, 1,3-propanediol bis(4-aminobenzoate), {4-[4-(4-aminobenzoyl)oxy-3-methylbutoxy]butyl}4-aminobenzoate, methylene bis(methyl anthranilate), isobutyl 3,5-diamino-4-chlorobenzoate, methylene bis-methylanthranilate, 3,5-dimethylthio-2,6-diaminotoluene, 2,6-bis(methylthio)-4-methyl-1,3-benzenediamine, 4,4'-diaminodiphenyl sulfone, and the like.

[0038] Examples of the compound (a2) include polyiso(thio)cyanate compounds and (thio)urethane prepolymers having an iso(thio)cyanate group.

[0039] The polyiso(thio)cyanate compound refers to a compound having two or more iso(thio)cyanate groups in one molecule. Examples of the polyiso(thio)cyanate compound include polyisocyanate compounds, polyisothiocyanate compounds, and compounds having an isocyanate group and an isothiocyanate group.

[0040] Examples of the polyisocyanate compound include aliphatic diisocyanates such as tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, lysine diisocyanate methyl ester, lysine triisocyanate, bis(isocyanatemethyl)sulfide, bis(isocyanateethyl)sulfide, bis(isocyanatemethyl)disulfide, bis(isocyanateethyl)disulfide, bis(isocyanatemethylthio)methane, bis(isocyanateethylthio)methane, bis(isocyanateethylthio)ethane, and bis(isocyanatemethylthio)ethane; phenylene diisocyanate, tolylene diisocyanate, and m-xylylene. Aromatic diisocyanates such as diisocyanates, p-xylylene diisocyanate, 2,2,4-trimethylhexane diisocyanate, 4,4'-diphenylmethane diisocyanate, α,α,α',α'-tetramethylxylylene diisocyanate, bis(isocyanatomethyl)naphthalene, and diphenyl sulfide-4,4-diisocyanate; cyclohexane diisocyanate, methylcyclohexane diisocyanate, isophorone diisocyanate, bis(isocyanatomethyl)cyclohexane, dicyclohexylmethane isocyanate, dicyclohexyldimethylmethane isocyanate, 2,5-bis(isocyanatomethyl)bicyclo-[2.2.1]-heptane, and 2,6-bis(isocyanatomethyl)bicyclo-[2.2.1]-heptane, alicyclic diisocyanates such as 3,8-bis(isocyanatemethyl)tricyclodecane, 3,9-bis(isocyanatemethyl)tricyclodecane, 4,8-bis(isocyanatemethyl)tricyclodecane, and 4,9-bis(isocyanatemethyl)tricyclodecane; 2,5-diisocyanatethiophene, 2,5-bis(isocyanatemethyl)thiophene, 2,5-diisocyanatetetrahydrothiophene, and 2,5-bis(isocyanatemethyl)tetrahydrothiophene; Examples of suitable polyisocyanates include heterocyclic polyisocyanates such as 3,4-bis(isocyanatemethyl)tetrahydrothiophene, 2,5-diisocyanate-1,4-dithiane, 2,5-bis(isocyanatemethyl)-1,4-dithiane, 4,5-diisocyanate-1,3-dithiolane, and 4,5-bis(isocyanatemethyl)-1,3-dithiolane; tri- or higher functional polyisocyanates such as mesitylene triisocyanate; and polymers of aliphatic diisocyanates, aromatic diisocyanates, and alicyclic diisocyanates. Examples of such polymers include biurets, allophanates, uretdiones, and isocyanurates.

[0041] Examples of the compound having an isocyanate group and an isothiocyanate group include, but are not limited to, a compound in which some of the isocyanate groups of the polyisocyanate are substituted with isothiocyanate groups, and a compound in which some of the thioisocyanate groups of the polyisothiocyanate are substituted with isocyanate groups.

[0042] The molecular weight of the polyiso(thio)cyanate compound is preferably 100 or more and 500 or less, more preferably 100 or more and 400 or less.

[0043] A (thio)urethane prepolymer having an iso(thio)cyanate group is a poly(thio)urethane compound that has two or more iso(thio)cyanate groups in one molecule. It is believed that the use of a (thio)urethane prepolymer can produce a resin with higher uniformity.

[0044] Such poly(thio)urethane compounds can typically be produced by reacting a polyiso(thio)cyanate compound with a compound having two or more active hydrogen groups per molecule, with the upper limit being such that the polyiso(thio)cyanate compound is in excess. As such polyiso(thio)cyanate compounds, compounds similar to the polyiso(thio)cyanate compounds described above can be used. Furthermore, as compounds having two or more active hydrogen groups per molecule, compounds similar to the compound (A) having two or more active hydrogen atoms per molecule can be used.

[0045] The content of iso(thio)cyanate groups in a (thio)urethane prepolymer having an iso(thio)cyanate group is preferably 10% by mass or more and 50% by mass or less, more preferably 15% by mass or more and 40% by mass or less, based on 100% by mass of the (thio)urethane prepolymer.

[0046] The molecular weight of the (thio)urethane prepolymer having an iso(thio)cyanate group is preferably more than 500 and not more than 10,000, more preferably 550 or more and not more than 8,000.

[0047] The content of the (thio)urethane prepolymer having an iso(thio)cyanate group is preferably 50% by mass or more and 100% by mass or less, more preferably 60% by mass or more and 90% by mass or less, based on a total of 100% by mass of the compound (B) having two or more iso(thio)cyanate groups in one molecule.

[0048] Examples of the combination of the compound (a1) having two or more active hydrogen atoms in one molecule and the compound (a2) having two or more iso(thio)cyanate groups in one molecule include a combination of using an aromatic diamine as the compound (a1) and a (thio)urethane prepolymer and an aliphatic diisocyanate as the compound (a2); a combination of using an alicyclic diisocyanate and a tri- or higher functional polythiol; and a combination of using an aromatic diisocyanate and a tri- or higher functional polythiol.

[0049] The resin can be produced by reacting compound (a1) with compound (a2) under conditions where the mass ratio (compound (a2) / compound (a1)) is preferably 0.5 to 3.0, and more preferably 0.8 to 2.5.

[0050] The content of the (thio)urethane resin in the resin is preferably 80% by mass or more and 100% by mass or less, more preferably 90% by mass or more and 100% by mass or less, and even more preferably 95% by mass or more and 100% by mass or less.

[0051] The substrate preferably further contains a dye (C) in addition to the resin. The inclusion of a dye can improve the contrast of the field of view. The dye is typically a compound that has absorption in the visible light region (wavelength 360 nm to 830 nm).

[0052] The dye (C) preferably contains a dye (C1) having a maximum absorption peak in a wavelength region r1 of 550 to 650 nm in the visible absorption spectrum, which region r1 is preferably from 560 to 630 nm, more preferably from 565 to 605 nm.

[0053] The half-width of the maximum absorption peak in the region r1 is preferably 70 nm or less, and more preferably 50 nm or less.

[0054] The dye (C1) preferably contains a compound having a tetraazaporphyrin skeleton, which is a skeleton in which four pyrroles are bonded to each other via nitrogen atoms bonded to carbon atoms at the 2- and 4-positions.

[0055] The dye (C1) is represented by the following formula (1): [ka] [In formula (1), R1 to R8 each independently represent 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, a C1-20 alkyl group, a C1-20 halogenoalkyl group, a C2-20 alkoxyalkyl group, a C1-20 alkoxy group, a C2-20 alkoxyalkoxy group, a C6-20 aryloxy group, a C1-20 acyl group, a C2-20 alkoxycarbonyl group, a C2-20 alkylaminocarbonyl group, a C3-20 dialkylaminocarbonyl group, a C2-20 alkylcarbonylamino group, C represents a 7-20 arylcarbonylamino group, a C1-20 monoalkylamino group, a C2-20 dialkylamino group, a C7-20 arylaminocarbonyl group, a C7-20 aryloxycarbonyl group, a C7-20 aralkyl group, a C7-20 aryl group, a heteroaryl group, a C1-20 alkylthio group, a C6-20 arylthio group, a C3-20 alkenyloxycarbonyl group, or a C2-20 alkenyl group; R1 and R2, R3 and R4, R5 and R6, and R7 and R8 may each form a linking group to form a ring other than an aromatic ring. M represents two hydrogen atoms, a divalent metal atom, a trivalent monosubstituted metal atom, a tetravalent disubstituted metal atom, or an oxymetal atom.

[0056] Specific examples of R1 to R8 include a hydrogen atom; a halogen atom such as fluorine, chlorine, bromine, or iodine; a nitro group; a cyano group; a hydroxy group; an amino group; a carboxy group; a sulfonic acid group; Methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, t-butyl, n-pentyl, isopentyl, 2-methylbutyl, 1-methylbutyl, neopentyl, 1,2-dimethylpropyl, 1,1-dimethylpropyl, cyclopentyl, n-hexyl, 4-methylpentyl, 3-methylpentyl, 2-methylpentyl, 1-methylpentyl, 3,3-dimethylbutyl, 2,3 -dimethylbutyl group, 1,3-dimethylbutyl group, 2,2-dimethylbutyl group, 1,2-dimethylbutyl group, 1,1-dimethylbutyl group, 3-ethylbutyl group, 2-ethylbutyl group, 1-ethylbutyl group, 1,2,2-trimethylbutyl group, 1,1,2-trimethylbutyl group, 1-ethyl-2-methylpropyl group, cyclohexyl group, n-heptyl group, 2-methylhexyl group, 3-methylhexyl group, 4-methylhexyl group, 5-methylhexyl group, 2,4 -Dimethylpentyl group, n-octyl group, 2-ethylhexyl group, 2,5-dimethylhexyl group, 2,5,5-trimethylpentyl group, 2,4-dimethylhexyl group, 2,2,4-trimethylpentyl group, n-nonyl group, 3,5,5-trimethylhexyl group, n-decyl group, 4-ethyloctyl group, 4-ethyl-4,5-dimethylhexyl group, n-undecyl group, n-dodecyl group, 1,3,5,7-tetramethyloctyl group, 4-butyloctyl group, 6,6 - a straight-chain, branched, or cyclic C1-20 alkyl group (preferably a C1-10 alkyl group), such as a diethyloctyl group, an n-tridecyl group, a 6-methyl-4-butyloctyl group, an n-tetradecyl group, an n-pentadecyl group, a 3,5-dimethylheptyl group, a 2,6-dimethylheptyl group, a 2,4-dimethylheptyl group, a 2,2,5,5-tetramethylhexyl group, a 1-cyclopentyl-2,2-dimethylpropyl group, or a 1-cyclohexyl-2,2-dimethylpropyl group; C1-20 halogenoalkyl groups such as a chloromethyl group, a dichloromethyl group, a fluoromethyl group, a trifluoromethyl group, a pentafluoroethyl group, and a nonafluorobutyl group (preferably a C1-10 halogenoalkyl group); C2-20 alkoxyalkyl groups such as a methoxyethyl group, an ethoxyethyl group, an isopropyloxyethyl group, a 3-methoxypropyl group, a 2-methoxybutyl group, and a diethoxymethyl group (preferably a C2-10 alkoxyalkyl group); C alkoxy groups (preferably C alkoxy groups) such as methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, sec-butoxy, t-butoxy, n-pentoxy, isopentoxy, neopentoxy, n-hexyloxy, and n-dodecyloxy; C2-20 alkoxyalkoxy groups such as a methoxyethoxy group, an ethoxyethoxy group, a 3-methoxypropyloxy group, or a 3-(isopropyloxy)propyloxy group (preferably a C2-10 alkoxyalkoxy group); C6-20 aryloxy groups (preferably C6-10 aryloxy groups) such as a phenoxy group, a 2-methylphenoxy group, a 4-methylphenoxy group, a 4-t-butylphenoxy group, a 2-methoxyphenoxy group, or a 4-isopropylphenoxy group; C1-20 acyl groups (preferably C1-10 acyl groups) such as a formyl group, acetyl group, ethylcarbonyl group, n-propylcarbonyl group, isopropylcarbonyl group, n-butylcarbonyl group, isobutylcarbonyl group, sec-butylcarbonyl group, t-butylcarbonyl group, n-pentylcarbonyl group, isopentylcarbonyl group, neopentylcarbonyl group, 2-methylbutylcarbonyl group, and nitrobenzylcarbonyl group; C2-20 alkoxycarbonyl groups such as a methoxycarbonyl group, an ethoxycarbonyl group, an isopropyloxycarbonyl group, or a 2,4-dimethylbutyloxycarbonyl group (preferably a C2-10 alkoxycarbonyl group); C2-20 alkylaminocarbonyl groups such as a methylaminocarbonyl group, an ethylaminocarbonyl group, an n-propylaminocarbonyl group, an n-butylaminocarbonyl group, or an n-hexylaminocarbonyl group (preferably a C2-10 alkylaminocarbonyl group); C3-20 dialkylaminocarbonyl groups such as a dimethylaminocarbonyl group, a diethylaminocarbonyl group, a di-n-propylaminocarbonyl group, a di-n-butylaminocarbonyl group, or an N-methyl-N-cyclohexylaminocarbonyl group (preferably a C3-10 dialkylaminocarbonyl group); C2-20 alkylcarbonylamino groups such as an acetylamino group, an ethylcarbonylamino group, or a butylcarbonylamino group (preferably a C2-10 alkylcarbonylamino group); C7-20 arylcarbonylamino groups such as a phenylcarbonylamino group, a 4-ethylphenylcarbonylamino group, or a 3-butylphenylcarbonylamino group (preferably a C7-10 arylcarbonylamino group); C1-20 alkylamino groups such as methylamino group, ethylamino group, n-propylamino group, n-butylamino group, and n-hexylamino group (preferably C1-10 alkylamino group); C2-20 dialkylamino groups such as a dimethylamino group, a diethylamino group, a di-n-propylamino group, a di-n-butylamino group, or an N-methyl-N-cyclohexylamino group (preferably a C2-10 dialkylamino group); C7-20 arylaminocarbonyl groups such as a phenylaminocarbonyl group, a 4-methylphenylaminocarbonyl group, a 2-methoxyphenylaminocarbonyl group, or a 4-n-propylphenylaminocarbonyl group (preferably a C7-10 arylaminocarbonyl group); C7-20 aryloxycarbonyl groups such as a phenoxycarbonyl group, a 2-methylphenoxycarbonyl group, a 4-methoxyphenoxycarbonyl group, or a 4-t-butylphenoxycarbonyl group (preferably a C7-10 aryloxycarbonyl group); C7-20 aralkyl groups such as benzyl group, nitrobenzyl group, cyanobenzyl group, hydroxybenzyl group, methylbenzyl group, dimethylbenzyl group, trimethylbenzyl group, dichlorobenzyl group, methoxybenzyl group, ethoxybenzyl group, trifluoromethylbenzyl group, naphthylmethyl group, nitronaphthylmethyl group, cyanonaphthylmethyl group, hydroxynaphthylmethyl group, methylnaphthylmethyl group, and trifluoromethylnaphthylmethyl group (preferably C7-10 aralkyl groups); C6-20 aryl groups (preferably C6-10 aryl groups) such as a phenyl group, a nitrophenyl group, a cyanophenyl group, a hydroxyphenyl group, a methylphenyl group, a dimethylphenyl group, a trimethylphenyl group, a dichlorophenyl group, a methoxyphenyl group, an ethoxyphenyl group, a trifluoromethylphenyl group, an N,N-dimethylaminophenyl group, a naphthyl group, a nitronaphthyl group, a cyanonaphthyl group, a hydroxynaphthyl group, a methylnaphthyl group, or a trifluoromethylnaphthyl group; heteroaryl groups such as a pyrrolyl group, a thienyl group, a furanyl group, an oxazoyl group, an isoxazoyl group, an oxadiazoyl group, an imidazoyl group, a benzoxazoyl group, a benzothiazoyl group, a benzimidazoyl group, a benzofuranyl group, and an indoyl group; C alkylthio groups (preferably C alkylthio groups) such as a methylthio group, an ethylthio group, an n-propylthio group, an isopropylthio group, an n-butylthio group, an isobutylthio group, a sec-butylthio group, a t-butylthio group, an n-pentylthio group, an isopentylthio group, a 2-methylbutylthio group, a 1-methylbutylthio group, a neopentylthio group, a 1,2-dimethylpropylthio group, or a 1,1-dimethylpropylthio group; C6-20 arylthio groups such as a phenylthio group, a 4-methylphenylthio group, a 2-methoxyphenylthio group, and a 4-t-butylphenylthio group (preferably a C6-10 arylthio group); C3-20 alkenyloxycarbonyl groups such as an allyloxycarbonyl group or a 2-butenoxycarbonyl group (preferably a C3-10 alkenyloxycarbonyl group); C2-20 alkenyl groups (preferably C2-10 alkenyl groups) such as vinyl group, propenyl group, 1-butenyl group, isobutenyl group, 1-pentenyl group, 2-pentenyl group, 2-methyl-1-butenyl group, 3-methyl-1-butenyl group, 2-methyl-2-butenyl group, 2,2-dicyanovinyl group, 2-cyano-2-methylcarboxyvinyl group, and 2-cyano-2-methylsulfonevinyl group; and the like.

[0057] Examples of rings formed by R1 and R2, R3 and R4, R5 and R6, or R7 and R8 as linking groups other than aromatic rings include rings in which the linking groups corresponding to R1 to R8 are -CH2CH2CH2CH2-, -CH2CH2CH(NO2)CH2-, -CH2CH(CH3)CH2CH2-, -CH2CH(Cl)CH2CH2-, etc.

[0058] R1 to R8 are preferably a hydrogen atom or a C1-20 alkyl group (preferably a C1-10 alkyl group, more preferably a butyl group, and particularly a t-butyl group). It is particularly preferred that one of R1 to R8 bonded to the same ring is a hydrogen atom and the other is a C1-20 alkyl group (preferably a C1-10 alkyl group, more preferably a butyl group, and particularly a t-butyl group).

[0059] Examples of divalent metal atoms represented by M include Cu, Zn, Fe, Co, Ni, Ru, Rh, Pd, Pt, Mn, Sn, Mg, Pb, Hg, Cd, Ba, Ti, Be, and Ca. Examples of the mono-substituted trivalent mono-substituted metal atom represented by M include Al-F, Al-C, Al-Br, Al-I, Ga-F, Ga-Cl, Ga-Br, Ga-I, In-F, In-Cl, In-Br, In-I, Tl-F, Tl-Cl, Tl-Br, Tl-I, Al-CH, Al-CH(CH), In-CH, In-CH(CH), Mn(OH), Mn(OCH), Mn(OSi(CH), Fe-Cl, and Ru-Cl. Examples of tetravalent disubstituted metal atoms represented by M include CrCl2, SiF2, SiCl2, SiBr2, SiI2, SnF2, SnCl2, SnBr2, ZrCl2, GeF2, GeCl2, GeBr2, GeI2, TiF2, TiCl2, TiBr2, Si(OH)2, Sn(OH)2, Ge(OH)2, Zr(OH)2, Mn(OH)2, TiR112, CrR112, SiR112, SnR112, GeR112, Si(OR12)2, Sn(OR12)2, Ge(OR12)2, Ti(OR12)2, Cr(OR12)2, Si(SR1 3)2, Sn(SR13)2, Ge(SR13)2, etc. (wherein R11 each independently represents a C2-20 acyloxy group (preferably a C2-10 acyloxy group), a C1-20 alkyl group (preferably a C1-10 alkyl group), a C6-20 aryl group (preferably a C6-10 aryl group), a trialkylsilyloxy group, a trialkyltinoxy group, or a trialkylgermaniumoxy group; and R12 to R13 each independently represent an alkyl group, an aryl group (preferably a phenyl group, a naphthyl group), or a derivative thereof). Examples of oxymetals include VO, MnO, and TiO.

[0060] M is preferably a divalent metal such as Pd, Cu, Ru, Pt, Ni, Co, Rh, or Zn; an oxymetal such as VO or TiO; or a tetravalent disubstituted metal atom such as Si(R14)2, Sn(R14)2, or Ge(R14)2 (wherein R14 represents a halogen atom, a C1-20 alkoxy group (preferably a C1-10 alkoxy group), a C6-20 aryloxy group (preferably a C6-10 aryloxy group), a C2-20 acyloxy group (preferably a C2-10 acyloxy group), a hydroxy group, an alkyl group, an aryl group, an alkylthio group, an arylthio group, a trialkylsilyloxy group, a trialkyltinoxy group, or a trialkylgermaniumoxy group), with oxymetals such as VO and TiO being more preferred.

[0061] The content of the compound represented by formula (1) is preferably 80% by mass or more and 100% by mass or less, more preferably 90% by mass or more and 100% by mass or less, and even more preferably 95% by mass or more and 100% by mass or less, based on 100% by mass of the total dye (C1).

[0062] The proportion of dye (C1) is preferably 80% by mass or more and 100% by mass or less, more preferably 90% by mass or more and 100% by mass or less, and even more preferably 95% by mass or more and 100% by mass or less, based on 100% by mass of the total dye (C).

[0063] The total content of the resin and the dye is preferably 80% by mass or more and 100% by mass or less, more preferably 90% by mass or more and 100% by mass or less, and even more preferably 95% by mass or more and 100% by mass or less, based on 100% by mass of the total amount of the base material.

[0064] The content of the dye in the substrate is preferably 0.0001% by mass or more, more preferably more than 0.0001% by mass and 0.01% by mass or less, and even more preferably 0.005% by mass or more and 0.01% by mass or less, based on 100% by mass of the total amount of the substrate. When the content of the dye in the substrate is within this range, better contrast is achieved.

[0065] The substrate preferably further contains an ultraviolet absorber (C) in addition to the resin and the dye (B) that is optionally contained therein.

[0066] Examples of the ultraviolet absorber (D) include benzotriazole-based ultraviolet absorbers, benzophenone-based ultraviolet absorbers, triazine-based ultraviolet absorbers, benzoxazine-based ultraviolet absorbers, and benzoate-based ultraviolet absorbers.

[0067] Benzotriazole-based ultraviolet absorbers include 2-ethylhexyl-2-(2-hydroxy-4-ethoxyphenyl)-2H-benzotriazole-5-carboxylate, 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole, 2-(2-hydroxy-3,5-di-tert-butylphenyl)-5-chloro-2H-benzotriazole, 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chloro-2H-benzotriazole, 2-(2-hydroxy-3,5-di-tert-amylphenyl)-2H-benzotriazole, 2-(2-hydroxy-3,5-di-tert-butylphenyl)-2H-benzotriazole, 2-(2-hydroxy-5-tert-butylphenyl)-2H-benzotriazole, 2-(2-hydroxy-5-tert-octylphenyl)-2H-benzotriazole (2-(2-hydroxy-5-(1,1,3, 3-tetramethylbutyl)phenyl)-2H-benzotriazole), 2-(2-hydroxy-4-octyloxyphenyl)-2H-benzotriazole, 2-(2-hydroxy-3,5-bis(α,α-dimethylbenzyl)phenyl)-2H-benzotriazole, 2,2'-methylenebis(4-methyl-6-(benzotriazol-2-yl)phenol), 2,2'-methylenebis(6-(2H-benzotriazol-2-yl)-4-(1, 1,3,3-tetramethylbutyl)phenol), 2-(2-hydroxy-3-(4,5,6,7-tetrahydro-1,3-dioxo-1H-isoindol-2-ylmethyl)-5-methylphenyl)-2H-benzotriazole, 2-(2-hydroxy-4-octyloxyphenyl)-2H-benzotriazole, 2-(2-hydroxy-3,5-bis(1-methyl-1-phenylethyl)phenyl-2H-benzotriazole, and the like. Among them, 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole, 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chloro-2H-benzotriazole, 2-(2-hydroxy-5-tert-octylphenyl)-2H-benzotriazole (2-(2-hydroxy-5-(1,1,3,3-tetramethylbutyl)phenyl)-2H-benzotriazole), 2,2'-methylenebis(6-(2H-benzotriazole- 2-(2-hydroxy-3-(4,5,6,7-tetrahydro-1,3-dioxo-1H-isoindol-2-ylmethyl)-5-methylphenyl)-2H-benzotriazole, 2-(2-hydroxy-4-octyloxyphenyl)-2H-benzotriazole, 2-(2-hydroxy-3,5-bis(1-methyl-1-phenylethyl)phenyl)-2H-benzotriazole, and the like are preferred.

[0068] Examples of the benzophenone-based ultraviolet absorber include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, 2-hydroxy-4-n-octyloxybenzophenone, 2-hydroxy-4-n-dodecyloxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, and 2,2'-dihydroxy-4,4'-dimethoxybenzophenone. Of these, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, 2-hydroxy-4-n-octyloxybenzophenone, 2-hydroxy-4-n-dodecyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, and the like are preferred.

[0069] Triazine-based ultraviolet absorbers include 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-n-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-n-hexyloxyphenyl)-1,3,5-triazine, and 2,4,6-tris(2-hydroxy-4-hexyloxy-3-methylphenyl)-1,3,5-triazine. azine, 2-(2-hydroxy-4-(2-ethylhexyloxy)phenyl)-4,6-diviphenyl-1,3,5-triazine, 2-((2-hydroxy-4-(1-(2-ethylhexyloxycarbonyl)ethyloxy)phenyl))-4,6-diphenyl-1,3,5-triazine, 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol, 2-(4,6-bis-2,4-dimethylphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol, and the like. Among these, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-n-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-n-hexyloxyphenyl)-1,3,5-triazine, and the like are preferred.

[0070] Examples of benzoxazine-based ultraviolet absorbers include 2,2'-p-phenylenebis(1,3-benzoxazine-4-one), 2,2'-m-phenylenebis(3,1-benzoxazine-4-one), and 2,2'-p,p'-diphenylenebis(3,1-benzoxazine-4-one). Of these, 2,2'-p-phenylenebis(1,3-benzoxazin-4-one) is preferred.

[0071] Examples of benzoate-based ultraviolet absorbers include 2,6-di-t-butylphenyl-3',5'-di-t-butyl-4'-hydroxybenzoate, 2,6-di-t-hexylphenyl-3',5'-di-t-butyl-4'-hydroxybenzoate, hexadecyl-3,5-di-t-butyl-4-hydroxybenzoate, phenyl salicylate, 4-tert-butylphenyl salicylate, and 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate.

[0072] In one embodiment, the ultraviolet absorber (C) preferably contains a benzotriazole-based ultraviolet absorber. In another embodiment, the lower limit of the content of the benzotriazole-based ultraviolet absorber in the ultraviolet absorber (C) is 0 mass%.

[0073] In one embodiment, the ultraviolet absorber (C) preferably contains a benzophenone-based ultraviolet absorber. In another embodiment, the lower limit of the content of the benzophenone-based ultraviolet absorber in the ultraviolet absorber (C) is 0 mass%.

[0074] In one embodiment, the ultraviolet absorber (C) preferably contains a triazine-based ultraviolet absorber. In another embodiment, the lower limit of the content of the triazine-based ultraviolet absorber in the ultraviolet absorber (C) is 0 mass%.

[0075] In one embodiment, the ultraviolet absorber (C) preferably contains a benzoxazine-based ultraviolet absorber. In another embodiment, the lower limit of the content of the benzoxazine-based ultraviolet absorber in the ultraviolet absorber (C) is 0 mass%.

[0076] In one embodiment, the ultraviolet absorber (C) preferably contains a benzoate-based ultraviolet absorber. In another embodiment, the lower limit of the content of the benzoate-based ultraviolet absorber in the ultraviolet absorber (C) is 0 mass%.

[0077] The total content of the benzotriazole-based ultraviolet absorber, benzophenone-based ultraviolet absorber, triazine-based ultraviolet absorber, benzoxazine-based ultraviolet absorber, and benzoate-based ultraviolet absorber in the ultraviolet absorber (C) is preferably 80% by mass or more and 100% by mass or less, more preferably 90% by mass or more and 100% by mass or less, and even more preferably 95% by mass or more and 100% by mass or less.

[0078] The molecular weight of the ultraviolet absorber (C) is preferably 100 or more and 1,000 or less, more preferably 150 or more and 600 or less, and even more preferably 200 or more and 300 or less.

[0079] The melting point of the ultraviolet absorber (C) is preferably 20°C or higher and 400°C or lower, more preferably 50°C or higher and 200°C or lower, and even more preferably 60°C or higher and 100°C or lower.

[0080] The content of the ultraviolet absorber (C) is preferably 0.7 parts by mass or more and 50 parts by mass or less, more preferably 1.0 parts by mass or more and 50 parts by mass or less, and even more preferably 1.0 parts by mass or more and 30 parts by mass or less, relative to 1 part by mass of the dye (B).

[0081] The substrate may contain other components in addition to the resin and the pigment, such as a catalyst, an antioxidant, a color inhibitor, a fluorescent brightener, and a release agent.

[0082] The substrate can be formed from a composition containing a compound (a1) having two or more active hydrogen atoms in one molecule and a compound (a2) having two or more iso(thio)cyanate groups in one molecule, and preferably from a composition containing the compound (a1) and the compound (a2), and optionally a dye (B) and / or an ultraviolet absorber (C).

[0083] The compound (a1) having two or more active hydrogen atoms in one molecule, the compound (a2) having two or more iso(thio)cyanate groups in one molecule, the dye (B), and the ultraviolet absorber (C) are the same as defined above.

[0084] In the composition, the compound (a1) and the compound (a2) are preferably contained in a mass ratio (compound (a2) / compound (a1)) of preferably 0.5 to 3.0, more preferably 0.8 to 2.5. When the molar ratio is within this range, the resin has good curability.

[0085] In the above composition, the content of dye (B) is preferably 0.0001 part by mass or more, more preferably more than 0.0001 part by mass and 0.01 part by mass or less, and even more preferably 0.005 part by mass or more and 0.01 part by mass or less, per 100 parts by mass of the total of compound (a1), compound (a2), and dye (B).

[0086] The composition may contain other components, such as a catalyst, an antioxidant, a color inhibitor, an optical brightener, a solvent, and a mold release agent.

[0087] The substrate can be produced by heating the composition to obtain a cured product, and molding the cured product as needed. When heating the composition, the composition may be heated in a lens mold. This allows the composition to be cured and molded simultaneously.

[0088] The heating temperature when curing the composition is, for example, preferably 60° C. or more and 200° C. or less, more preferably 70° C. or more and 150° C. or less. The curing time when heating the composition is preferably 3 hours or more and 100 hours or less, more preferably 10 hours or more and 50 hours or less.

[0089] The shape of the substrate is not particularly limited as long as it is a shape used for eyeglass lenses. Typically, the substrate preferably has a first surface and a second surface facing each other, and a side surface. In one embodiment, the first surface is the surface that faces the wearer's eyeball when eyeglasses equipped with the eyeglass lenses of the present disclosure are worn, and the second surface is the surface opposite the first surface, i.e., the surface that faces outward when eyeglasses equipped with the eyeglass lenses of the present disclosure are worn. In the same embodiment, the side surface is the surface that connects the first surface and the second surface, and may be provided with a groove or the like for fixing the eyeglass frame.

[0090] The first and second surfaces may have any of a convex, concave, and flat shape. Typically, the first surface is concave and the second surface is convex.

[0091] In a preferred embodiment, the radius of curvature of the second surface may be 79.84R or more and 85.0R or less, and the radius of curvature of the first surface may be 66.533R or more and 76.69R or less.

[0092] (layer x1) Layer X1 is disposed on the substrate. Layer X1 is preferably disposed on the entire surface or at least a portion of the surface of the substrate, and is preferably disposed on at least one of the first and second surfaces, and is preferably disposed on both the first and second surfaces. In this embodiment, layer X1 may be disposed in direct contact with the first or second surface, or may be disposed on the first or second surface via a primer layer or the like.

[0093] In the present disclosure, when a component is said to be disposed "on" a surface, this includes both an embodiment in which the component is directly in contact with the surface and exists above the surface, and an embodiment in which the component is located above the surface and apart from the surface. When the component is located above the surface and apart from the surface, another component may exist between the surface and the component.

[0094] The layer X1 contains at least one element selected from Ti, Zr, and Sn (hereinafter also referred to as the "specific element"). When the layer X1 contains the specific element, it is possible to achieve both visibility and anti-glare properties while maintaining the contrast of the field of view, and preferably to achieve both visibility and anti-glare properties while maintaining the contrast of the field of view even in a dark field.

[0095] The above-mentioned specific elements can be detected by fluorescent X-ray analysis.

[0096] In layer X1, when measured by X-ray fluorescence analysis, the proportion of X-ray photons attributable to Ti out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater is preferably 80 cps or greater, more preferably 85 cps to 97 cps, and even more preferably 90 cps to 95 cps. When the proportion of Ti is within the above range, it is easy to achieve both visibility and antiglare properties while maintaining the contrast of the field of view, even in a dark field.

[0097] In layer X1, when measured by X-ray fluorescence analysis, the proportion of X-ray photons attributable to Zr out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater is preferably 6 cps or greater, more preferably 6 cps to 20 cps, and even more preferably 6 cps to 15 cps. When the proportion of Zr is within the above range, visibility and antiglare properties can both be achieved while maintaining the contrast of the field of view, even in a dark field.

[0098] In the layer X1, when measured by X-ray fluorescence analysis, the proportion of X-ray photons attributable to Sn, out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater, is preferably 0.1 cps or more and less than 3.0 cps, more preferably 0.5 cps or more and 2.0 cps or less, and even more preferably 0.7 cps or more and 2.0 cps or less. When the proportion of Sn is within the above range, it is possible to achieve both visibility and antiglare properties while maintaining the contrast of the field of view, even in a dark field.

[0099] In layer X1, when measured by X-ray fluorescence analysis, the proportion of the total X-ray photons attributable to Ti, Zr, and Sn in a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater is preferably 80 cps to 100 cps, more preferably 90 cps to 100 cps, and even more preferably 95 cps to 100 cps. When the proportion of the total X-ray photons attributable to Ti, Zr, and Sn is within the above range, visibility and antiglare properties can be achieved while maintaining the contrast of the field of view even in a dark field.

[0100] In the layer X1, the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Ti (Zr / Ti) is preferably 0.05 or more and 0.5 or less, more preferably 0.05 or more and 0.25 or less, and even more preferably 0.06 or more and 0.2 or less, in cps, as measured by X-ray fluorescence analysis. When the ratio (Zr / Ti) is within this range, visibility and antiglare properties can be achieved while maintaining the contrast of the field of view even in a dark field.

[0101] In the layer X1, the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Sn (Sn / Ti) is preferably 0.01 or more and 0.2 or less, more preferably 0.001 or more and 0.04 or less, and even more preferably 0.007 or more and 0.0025 or less, in cps, as measured by X-ray fluorescence analysis. When the ratio (Sn / Ti) is within this range, visibility and antiglare properties can be achieved while maintaining the contrast of the field of view even in a dark field.

[0102] The thickness of the layer X1 is preferably 0.05 μm or more and 100 μm or less, preferably 0.1 μm or more and 50 μm or less, and more preferably 0.4 μm or more and 30 μm or less.

[0103] The method for forming the layer X1 is not particularly limited, and examples thereof include a wet method and a dry method.

[0104] In the wet method, the layer X1 can be formed by applying a liquid composition containing a metal oxide colloid containing one or more metals selected from Ti, Zr, and Sn onto a substrate and drying it as necessary.

[0105] Examples of the metal oxide colloid containing one or more metals selected from Ti, Zr, and Sn include metal oxide colloids of the specific metals listed above, and specific examples include titania colloid, zirconia colloid, and tin oxide colloid.

[0106] The metal oxide colloid may contain, in addition to the metal oxide colloid of the specific metal, a metal oxide colloid of another metal, such as silica colloid, alumina colloid, antimony oxide colloid, tungsten oxide colloid, or zinc oxide colloid.

[0107] The liquid composition may contain a silane coupling agent in addition to the metal oxide colloid. Examples of silane coupling agents include glycidoxymethyltrimethoxysilane, glycidoxymethyltriethoxysilane, α-glycidoxyethyltriethoxysilane, β-glycidoxyethyltrimethoxysilane, β-glycidoxyethyltriethoxysilane, α-glycidoxypropyltrimethoxysilane, α-glycidoxypropyltriethoxysilane, β-glycidoxypropyltrimethoxysilane, β-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltripropoxysilane, γ-glycidoxypropyltributoxysilane, γ-glycidoxypropyltriphenoxysilane, α-glycidoxybutyltrimethoxysilane, α-glycidoxybutyltriethoxysilane, β-glycidoxybutyltrimethoxysilane, β-glycidoxybutyltriethoxysilane, γ-glycidoxypropyltriethoxysilane, Glycidoxybutyltrimethoxysilane, γ-glycidoxybutyltriethoxysilane, δ-glycidoxybutyltrimethoxysilane, δ-glycidoxybutyltriethoxysilane, (3,4-epoxycyclohexyl)methyltrimethoxysilane, (3,4-epoxycyclohexyl)methyltriethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltriethoxysilane , β-(3,4-epoxycyclohexyl)ethyl tripropoxysilane, β-(3,4-epoxycyclohexyl)ethyl tributoxysilane, β-(3,4-epoxycyclohexyl)ethyl triphenoxysilane, γ-(3,4-epoxycyclohexyl)propyl trimethoxysilane, γ-(3,4-epoxycyclohexyl)propyl triethoxysilane, δ-(3,4-epoxycyclohexyl)butyl trimethoxysilane, δ-(3,4-Epoxycyclohexyl)butyltriethoxysilane, Glycidoxymethylmethyldimethoxysilane, Glycidoxymethylmethyldiethoxysilane, α-Glycidoxyethylmethyldimethoxysilane, α-Glycidoxyethylmethyldiethoxysilane, β-Glycidoxyethylmethyldimethoxysilane, β-Glycidoxyethylmethyldiethoxysilane, α-Glycidoxypropylmethyldimethoxysilane, α-Glycidoxypropylmethyldiethoxysilane, β-Glycidoxypropylmethyldimethoxysilane, β-Glycidoxypropylmethyldiethoxysilane, γ-Glycidoxypropylmethyldimethoxysilane, γ-Glycidoxypropylmethyldiethoxysilane, γ-Glycidoxypropylmethyldipropoxysilane, Examples of suitable silane coupling agents include silane coupling agents having a glycidyl group, such as γ-glycidoxypropylmethyldibutoxysilane, γ-glycidoxypropylmethyldiphenoxysilane, γ-glycidoxypropylethyldimethoxysilane, γ-glycidoxypropylethyldiethoxysilane, γ-glycidoxypropylvinyldimethoxysilane, γ-glycidoxypropylvinyldiethoxysilane, γ-glycidoxypropylphenyldimethoxysilane, and γ-glycidoxypropylphenyldiethoxysilane; and silane coupling agents having a (meth)acryloyl group, such as γ-(meth)acryloxypropyltrimethoxysilane, γ-(meth)acryloxypropyltriethoxysilane, and γ-(meth)acryloxypropylmethyltrimethoxysilane.

[0108] The liquid composition may further contain a polyfunctional epoxy compound, such as an aliphatic epoxy compound, an alicyclic epoxy compound, or an aromatic epoxy compound.

[0109] Aliphatic epoxy compounds include 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 Examples thereof include coal 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, pentaerythritol triglycidyl ether, pentaerythritol tetraglycidyl ether, dipentaerythritol tetraglycidyl ether, and sorbitol tetraglycidyl ether.

[0110] Examples of the alicyclic epoxy compound include 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexanecarboxylate, isophoronediol diglycidyl ether, and bis-2,2-hydroxycyclohexylpropane diglycidyl ether.

[0111] Examples of aromatic epoxy compounds include resorcinol diglycidyl ether, bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether, orthophthalic acid diglycidyl ester, phenol novolac polyglycidyl ether, and cresol novolac polyglycidyl ether.

[0112] The liquid composition may further contain a curing catalyst, a leveling agent, water, and an organic solvent.

[0113] In the liquid composition, when measured by X-ray fluorescence analysis, the proportion of X-ray photons attributable to Ti out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater is preferably 80 cps or greater, more preferably 85 cps to 97 cps, and even more preferably 90 cps to 95 cps. When the proportion of Ti is within the above range, it is easy to obtain a spectacle lens that maintains the contrast of the field of view even in a dark field and combines visibility and anti-glare properties.

[0114] In the liquid composition, when measured by X-ray fluorescence analysis, the proportion of X-ray photons attributable to Zr out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater is preferably 6 cps or greater, more preferably 6 cps to 20 cps, and even more preferably 6 cps to 15 cps. When the proportion of Zr is within the above range, it is easy to obtain a spectacle lens that maintains visual contrast even in a dark field and combines visibility and anti-glare properties.

[0115] In the liquid composition, the proportion of X-ray photons attributable to Sn, as measured by X-ray fluorescence analysis, out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or greater, is preferably 0.1 cps or more and less than 3.0 cps, more preferably 0.5 cps or more and 2.0 cps or less, and even more preferably 0.7 cps or more and 2.0 cps or less. When the proportion of Sn is within the above range, it is easy to obtain a spectacle lens that maintains the contrast of the field of view even in a dark field and combines visibility and anti-glare properties.

[0116] In the liquid composition, when measured by X-ray fluorescence analysis, the proportion of the total X-ray photons attributable to Ti, Zr, and Sn out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or higher is preferably 80 cps or more and 100 cps or less, more preferably 90 cps or more and 100 cps or less, and even more preferably 95 cps or more and 100 cps or less. When the total proportion of Ti, Zr, and Sn is within the above range, it is easy to obtain a spectacle lens that maintains the contrast of the field of view even in a dark field and combines visibility and anti-glare properties.

[0117] In the liquid composition, the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Ti (Zr / Ti), measured by X-ray fluorescence analysis, is preferably 0.05 or more and 0.5 or less, more preferably 0.05 or more and 0.25 or less, and even more preferably 0.06 or more and 0.2 or less, on a cps basis. When the ratio (Zr / Ti) is within this range, it is easy to obtain a spectacle lens that maintains the contrast of the field of view even in a dark field and achieves both visibility and anti-glare properties.

[0118] The proportions of the above elements can be measured by fluorescent X-ray analysis.

[0119] In the liquid composition, the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Sn (Sn / Ti) is preferably 0.01 or more and 0.2 or less, more preferably 0.001 or more and 0.04 or less, and even more preferably 0.007 or more and 0.0025 or less, in cps, as measured by X-ray fluorescence analysis. When the ratio (Sn / Ti) is within this range, it is easy to obtain a spectacle lens that maintains the contrast of the field of view even in a dark field and achieves both visibility and anti-glare properties.

[0120] The liquid composition can be applied to a substrate and cured to form the layer X1. Before applying the liquid composition, a primer layer may be formed on the substrate, and the liquid composition may be applied to the primer layer.

[0121] The primer layer is not particularly limited, and can be formed using a resin such as a poly(thio)urethane resin, a polyester resin, an acrylic resin, or an epoxy resin.

[0122] The coating method is not limited, and methods such as dip coating, die coating, flow coating, and gravure coating can be used.

[0123] The curing temperature is preferably 60 to 140° C., more preferably 70 to 130° C. The curing time is preferably 10 minutes to 10 hours, more preferably 20 minutes to 5 hours.

[0124] The dry method is not particularly limited, and vapor deposition methods such as vacuum vapor deposition, ion plating, and sputtering can be used.

[0125] (eyeglass lenses) The type of spectacle lens of the present disclosure is not limited, and may be a single-vision lens, a multifocal lens, a progressive-power lens, etc. The type of lens is determined by the shape of the surface of the substrate.

[0126] In a preferred embodiment, the spherical power of the spectacle lenses of the present disclosure is preferably between -1.0 D and 0 D, more preferably between -0.8 D and -0.25 D, and even more preferably between -0.75 D and -0.2 D. Having a spherical power within this range assists the eyeglass wearer's ability to adjust and improves vision even in environments where eye strain is likely to occur, such as low-light environments.

[0127] The eyeglass lens of the present disclosure may further have a polarizing layer. A conventionally known polarizing layer can be used as the polarizing layer. The polarizing layer may be disposed on or within the substrate. That is, the substrate may have a first portion on the first surface side and a second portion on the second surface side, with the polarizing layer disposed between the first portion and the second portion. Such a polarizing layer may be a polarizing film containing iodine, a dye (particularly, a dichroic dye), or the like.

[0128] The spectacle lens of the present disclosure may further include a layer X2. By providing layer X2, it may be easier to achieve both visibility and anti-glare properties while maintaining the contrast of the field of view in a dark field. Layer X2 differs from layer X1 and preferably includes one or more layers selected from an antifouling layer, an anti-reflection layer (multi-coated layer), an anti-glare layer, an anti-fogging layer, and a photochromic layer, and more preferably includes an anti-reflection layer (multi-coated layer). These layers may be disposed on layer X1 or may be disposed between the substrate and layer X1. In a preferred embodiment, these layers may be disposed on layer X1.

[0129] The layer X2 may contain Zr, Ta, Ti, Hf, Y, Zn, Nb, Cr, Al, Ce, Sb, Sn, Ta, or Si atoms or oxides thereof; or Mg or Ba atoms or fluorides thereof. The method for forming the layer X2 is not limited, and for example, the antireflection layer (multi-coat layer) can be formed by vapor deposition.

[0130] In the layer X2, the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Ti (Zr / Ti), measured by X-ray fluorescence analysis, is preferably 0.01 or more and less than 0.05, more preferably 0.015 or more and 0.045 or less, and even more preferably 0.02 or more and 0.4 or less, in cps. By having the ratio (Zr / Ti) within this range, it is possible to achieve both visibility and antiglare properties while maintaining the contrast of the field of view even in a dark field. The ratio (Zr / Ti) can be controlled, for example, by adjusting the vapor deposition conditions in a conventional manner.

[0131] Eyeglasses equipped with the eyeglass lenses of the present disclosure are also included within the technical scope of the present disclosure. [Example]

[0132] The present invention will be explained in more detail with reference to the following examples, but the present invention is not limited to these examples.

[0133] Synthesis Example 1 100 parts by mass of Takenate (manufactured by Mitsui Chemicals), 37 parts by mass of 4,4'-methylenebis(2-chloroaniline), 0.0096 parts by mass of a dye having a tetraazaporphyrin skeleton ("TAP2", manufactured by Yamada Chemical Co., Ltd.), and 0.29 parts by mass of KEMISORB 111 (manufactured by Chemipro Chemical Co., Ltd.) were mixed, heated at 80°C for 24 hours, and then cooled to obtain substrate 1.

[0134] Example 1 The metal content (excluding silicon atoms) of the substrate 1 obtained in the synthesis example was adjusted so that the CPS ratio (Ti:Zr:Sn) of X-ray photons attributed to Ti, Zr, and Sn was 91.7:7.1:1.2 in fluorescent X-ray analysis, and a liquid composition containing these was prepared, applied, and cured to obtain a spectacle lens 1 having a layer X1. The spherical power S was adjusted to -0.25D, and the visible light transmittance was 60%.

[0135] Example 2 The metal content (excluding silicon atoms) of the substrate 1 obtained in the synthesis example was adjusted so that the CPS ratio (Ti:Zr:Sn) of X-ray photons attributed to Ti, Zr, and Sn was 91.3:7.6:1.1 in fluorescent X-ray analysis, and a liquid composition containing these was prepared, applied, and cured to obtain a spectacle lens 2 having a layer X1 (spherical power S of -0.25D, visible light transmittance of 60%).

[0136] Comparative Example 1 The metal content (excluding silicon atoms) of the substrate 1 obtained in the synthesis example was adjusted so that the CPS ratio (Ti:Zr:Sn) of X-ray photons attributed to Ti and Sn was 16.3:83.7 in fluorescent X-ray analysis, and a liquid composition containing these was prepared, applied, and cured to obtain a spectacle lens 3 having a layer X1 (spherical power S of -0.25D, visible light transmittance of 60%).

[0137] Comparative Example 2 A liquid composition containing only silicon atoms as the metal component was prepared, applied to the substrate 1 obtained in the synthesis example, and cured to obtain a spectacle lens 4 having a layer X1 (spherical power S of -0.25D, visible light transmittance of 60%).

[0138] (Measurement method for specific elements) The spectacle lenses were analyzed using an X-ray fluorescence analyzer (EA6000VX, manufactured by Hitachi High-Tech Science Corporation) under the following conditions. Tube target element: Rh Measurement time: 100 seconds Effective time: 55 seconds Collimator: 1.2 x 1.2 mm Excitation voltage (kV): 50 Tube current: 670μA Filter: OFF Focus: Standard Atmosphere: Atmospheric Peaking time: 1.0 μsec Quantitative conditions (analysis method): Bulk FP

[0139] The results of the X-ray fluorescence analysis are shown in the table below.

[0140] [Table 1]

[0141] <Eye sight test> The visual acuity of subjects with normal vision was measured in a measurement room while wearing the eyeglass lenses 1 to 4 obtained in the examples and comparative examples. The environment in the measurement room was set to an illuminance of 400 lux, which is slightly darker than a normal room, and 60 lux, which simulates nighttime.

[0142] The subjects were seven adult men and women with unaided visual acuity of 0.6 to 1.2, and the results of the visual acuity test for these subjects are shown in Table 1 below. Table 2 shows the results at an illuminance of 400 lux, and Table 3 shows the results at an illuminance of 60 lux. The visual acuity when wearing the lenses of the present application was defined as the visual acuity with lenses. The effect of wearing the lenses was compared by assigning an evaluation value of +1 point for every +0.1 difference between the visual acuity with naked eyes and the visual acuity with lenses (visual acuity with lenses - visual acuity with naked eyes). The difference of -0.1 was assigned an evaluation value of -1 point. A higher evaluation value means that the visual acuity is improved by wearing the lenses. On the other hand, a lower evaluation value means that the visual acuity is not improved as much by wearing the lenses, or conversely, that the visual acuity is reduced by wearing the lenses. The evaluation values ​​and average values ​​for each example or comparative example are also shown in Tables 2 and 3.

[0143] [Table 2]

[0144] [Table 3]

[0145] As can be seen from the results in Tables 2 and 3, in Examples 1 and 2, a certain degree of improvement in visual acuity was observed even under low illuminance (dark field). This suggests that wearing the eyeglass lenses of the present disclosure can achieve both visibility and anti-glare properties while maintaining contrast in the field of view. On the other hand, in Comparative Examples 1 and 2, no improvement in visual acuity was observed.

[0146] Example 3 A layer X2, which is a multi-coat layer, was formed by vapor deposition on the spectacle lens 1 obtained in Example 1 to obtain a spectacle lens 5. The relative amounts of Zr and Ti contained in layer X2 were measured by X-ray fluorescence analysis, and the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Ti (Zr / Ti) was 0.032.

[0147] Comparative Example 3 A layer X2, which is a multi-coat layer, was formed by vapor deposition on the spectacle lens 3 obtained in Comparative Example 2 to obtain a spectacle lens 6. The relative amounts of Zr and Ti contained in layer X2 were measured by X-ray fluorescence analysis, and the ratio of the number of X-ray photons attributable to Zr to the number of X-ray photons attributable to Ti (Zr / Ti) was 0.022.

[0148] A visual acuity measurement test was similarly carried out on the spectacle lenses 5 and 6 obtained in Example 3 and Comparative Example 3. Table 4 shows the results at an illuminance of 400 lux, and Table 5 shows the results at an illuminance of 60 lux.

[0149] [Table 4]

[0150] [Table 5]

[0151] As can be seen from the results of Tables 4 and 5, it was confirmed that the formation of the layer X2 has the effect of further improving eyesight even under low illuminance. From this, it can be said that the provision of the layer X2 can achieve both visibility and anti-glare properties while maintaining the contrast of the field of view even in a dark field.

Claims

1. A substrate containing a resin (A); a layer X1 disposed on the substrate and containing at least one element selected from Ti, Zr, and Sn; a spectacle lens in which, in the layer X1, a proportion of X-ray photons attributable to Zr out of a total of 100 cps of X-ray photons attributable to elements having an atomic number of 20 or more is 5 cps or more and 20 cps or less, as measured by X-ray fluorescence analysis.

2. 2. The eyeglass lens according to claim 1, wherein in the layer X1, a proportion of X-ray photons attributable to Ti is 80 cps or more out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or more, as measured by X-ray fluorescence analysis.

3. 2. The eyeglass lens according to claim 1, wherein in the layer X1, a proportion of X-ray photons attributable to Sn is 0.1 cps or more and less than 2 cps out of a total of 100 cps of X-ray photons attributable to elements with atomic numbers of 20 or more, as measured by X-ray fluorescence analysis.

4. 2. The spectacle lens according to claim 1, wherein the resin comprises a reaction product of a compound (a1) having two or more active hydrogen atoms in one molecule and a compound (a2) having two or more iso(thio)cyanate groups in one molecule.

5. The eyeglass lens according to claim 1 , wherein the substrate further comprises a pigment (B).

6. 6. The spectacle lens according to claim 5, wherein the dye (B) comprises a dye (B1) having a maximum absorption peak in a wavelength region of 550 nm or more and 650 nm or less in a visible absorption spectrum.

7. The eyeglass lens according to claim 6 , wherein the dye (B1) includes a compound having a tetraazaporphyrin skeleton.

8. The compound having a tetraazaporphyrin skeleton is represented by the following formula (1): 【Chemical 1】 [In formula (1), R １ ~R 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, C １－２０ Alkyl group, C １－２０ Halogenoalkyl group, C ２－２０ Alkoxyalkyl group, C １－２０ Alkoxy group, C ２－２０ Alkoxyalkoxy group, C ６－２０ Aryloxy group, C １－２０ Acyl group, C ２－２０ Alkoxycarbonyl group, C ２－２０ Alkylaminocarbonyl group, C ３－２０ Dialkylaminocarbonyl group, C ２－２０ Alkylcarbonylamino group, C ７－２０ Arylcarbonylamino group, C １－２０ Monoalkylamino group, C ２－２０ Dialkylamino group, C ７－２０ Arylaminocarbonyl group, C ７－２０ Aryloxycarbonyl group, C ７－２０ Aralkyl group, C ７－２０ Aryl group, heteroaryl group, C １－２０ Alkylthio group, C ６－２０ Arylthio group, C ３－２０ Alkenyloxycarbonyl group or C ２－２０ represents an alkenyl group; R １ and R ２ , R ３ and R ４ , R ５ and R ６ , R ７ and R ８ may each form a ring other than an aromatic ring as a linking group. M represents two hydrogen atoms, a divalent metal atom, a trivalent monosubstituted metal atom, a tetravalent disubstituted metal atom, or an oxymetal atom. The spectacle lens according to claim 7, comprising a compound represented by the formula:

9. The eyeglass lens according to claim 1 , wherein the substrate further comprises an ultraviolet absorber (C).

10. 2. The eyeglass lens according to claim 1, wherein the spherical power S is not less than −1.0D and not more than 0D.

11. The eyeglass lens of claim 1 further comprising a polarizing layer.

12. Further, a layer X2 different from the layer X1 is provided, The eyeglass lens according to claim 1 , wherein the layer X2 includes at least one layer selected from an antifouling layer, an antireflection layer, an antiglare layer, an antifogging layer, and a photochromic layer.

13. A pair of eyeglasses comprising a spectacle lens according to any one of claims 1 to 12.

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