Spectacle lens and spectacles

Abstract

To provide spectacle lenses and spectacles, which offer better visibility while reducing the burden on the eyes by suppressing transmission of blue light.SOLUTION: A spectacle lens 1 provided herein comprises a base material 2 and a multilayer film 4 provided indirectly on a film-placing surface F of the base material 2. The multilayer film 4 comprises one or more low-refractive-index layers 6, one or more high-refractive-index layers 8, and an absorption layer 10. The absorption layer 10 contains SnOz (0<z≤2). The absorption layer 10 is located on a base material 2 side of the high-refractive-index layer 8 on the most atmosphere side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to eyeglass lenses and eyeglasses that reduce or cut the transmission of blue light, i.e., blue light, which has a wavelength within a wavelength range on the short wavelength side of the visible range and is visually perceived as blue. [Background technology]

[0002] A known spectacle lens that reduces the strain on the eyes caused by blue light by absorbing it rather than reflecting it is described in Japanese Patent No. 6873880 (Patent Document 1). This spectacle lens has a multilayer film including a chromium (Cr) layer with a thickness of 1.0 to 10.0 nm. Another known antistatic article is described in Japanese Patent Publication No. 4-63117 (Patent Document 2), which includes two or more antireflection coating layers, at least one of which contains tin dioxide (SnO2) as a main component. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6873880 [Patent Document 2] Special Publication No. 4-63117 Summary of the Invention [Problem to be solved by the invention]

[0004] The Cr layer absorbs not only blue light but also light in other wavelength ranges in the visible range, such as green light and red light, so that spectacle lenses having a Cr layer have a reduced luminous transmittance and reduced visibility. A layer mainly composed of SnO2 is known as a transparent conductive film provided for preventing charging. As in the example of Japanese Patent Publication No. 4-63117, the physical film thickness of the layer mainly composed of SnO2 is made thick, exceeding 65 nm, in order to obtain an antistatic effect. Also, the layer mainly composed of SnO2 is arranged in the outermost layer, which is the layer on the outermost surface side, or the second outermost layer, which is the layer adjacent to the outermost layer on the substrate side, in the multilayer film in order to obtain an antistatic effect. The surface side is also expressed as the air side and the objective side. Also, the back side is also expressed as the substrate side and the eyeball side.

[0005] The main object of the present invention is to provide spectacle lenses that can obtain better visibility while suppressing the transmission of blue light and reducing the burden on the eyes, and spectacles equipped with such spectacle lenses.

Means for Solving the Problems

[0006] This specification discloses spectacle lenses. The spectacle lenses may include a substrate. The spectacle lenses may include a multilayer film disposed directly or indirectly on the film arrangement surface of the substrate. The multilayer film may include one or more low refractive index layers. The multilayer film may include one or more high refractive index layers. The multilayer film may include an absorption layer. The absorption layer may contain SnO z (0 < z ≤ 2). The absorption layer may be disposed on the substrate side of the outermost high refractive index layer on the air side. Also, this specification discloses spectacle lenses. The spectacle lenses may include a substrate. The spectacle lenses may include a multilayer film disposed directly or indirectly on the film arrangement surface of the substrate. The multilayer film may include one or more low refractive index layers. The multilayer film may include one or more high refractive index layers. The multilayer film may include an absorption layer. The absorption layer may contain SnO z (0 < z ≤ 2). The absorption layer may not be disposed in the outermost layer, which is the layer on the outermost surface side in the multilayer film. The absorption layer may not be disposed in the second outermost layer, which is the layer adjacent to the outermost layer on the substrate side. Furthermore, this specification discloses spectacle lenses. The spectacle lenses may include a substrate. The spectacle lenses may include a multilayer film disposed directly or indirectly on the film arrangement surface of the substrate. The multilayer film may include one or more low refractive index layers. The multilayer film may include one or more high refractive index layers. The multilayer film may include an absorption layer. The absorption layer may include SnO z (0 < z ≦ 2). The absorption layer may be disposed on the substrate side of the low refractive index layer closest to the atmosphere. The absorption layer may be disposed on the substrate side of the high refractive index layer closest to the atmosphere. Furthermore, this specification discloses spectacles. The spectacles may include the above spectacle lenses.

Advantages of the Invention

[0007] The main advantage of the present invention is to provide spectacle lenses that can suppress the transmission of blue light to reduce the burden on the eyes while obtaining better visibility, and spectacles equipped with such spectacle lenses.

Brief Description of the Drawings

[0008] [Figure 1] It is a schematic cross-sectional view of a spectacle lens according to the present invention. [Figure 2] It is a schematic cross-sectional view of a spectacle lens showing that the colors of the reflected light can be different on the atmosphere side and the substrate side. [Figure 3] It is a graph showing the spectral reflectance distribution by simulation related to the atmosphere side and the eyeball side of Film Configuration 1, A. [Figure 4] It is a graph showing the spectral reflectance distribution by simulation related to the atmosphere side and the eyeball side of Film Configuration 2, B. [Figure 5] It is a graph showing the spectral reflectance distribution by simulation related to the atmosphere side and the eyeball side of Film Configuration 3, C. [Figure 6] It is a graph showing the spectral reflectance distribution by measurement related to the atmosphere side and the eyeball side of Example 1 and Comparative Example 1. [Figure 7] It is a graph showing the spectral reflectance distribution by measurement related to the atmosphere side and the eyeball side of Examples 2 and 3. [Figure 8] 10 is a graph showing the measured spectral reflectance distributions for the air side and the eyeball side of Comparative Example 4. [Figure 9] 10 is a graph showing the measured spectral reflectance distributions for the air side and the eyeball side of Comparative Examples 5 and 6. [Figure 10] 10 is a graph showing the measured spectral transmittance distributions according to Examples 4 to 6. [Figure 11] 10 is a graph showing measured spectral transmittance distributions according to Comparative Examples 7 and 8. [Figure 12] 10 is a graph showing measured spectral transmittance distributions according to Example 7 and Comparative Example 9. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, examples of embodiments of the present invention will be described with reference to the accompanying drawings. The form is not limited to the following example.

[0010] FIG. 1 is a schematic cross-sectional view of a spectacle lens 1 according to the present invention. The spectacle lens 1 according to the present invention comprises a substrate 2 , an interposed film 3 , and a multilayer film 4 .

[0011] The substrate 2 is translucent. The substrate 2 is preferably a plastic lens substrate made of plastic. However, the substrate 2 may be made of a material other than plastic, such as glass. The substrate 2 may also be made of multiple materials, such as glass and plastic. The material of the substrate 2 is preferably a thermosetting resin, such as a polyurethane resin, a thiourethane resin, a urethane-urea resin, an episulfide resin, a polycarbonate resin, a polyester resin, an acrylic resin, a polyethersulfone resin, a poly-4-methylpentene-1 resin, a diethylene glycol bisallyl carbonate resin, or a combination thereof. The substrate 2 is preferably plate-shaped. The plate-shaped substrate 2 is also called a substrate. The substrate 2 is a spectacle lens substrate. The spectacle lens substrate may or may not have a prescription. The spectacle lens substrate may be curved convexly toward the object side, may be flat, or may be curved convexly toward the eyeball side.

[0012] The multilayer film 4 is provided on one or more surfaces of the substrate 2. The multilayer film 4 is an optical multilayer film. The multilayer film 4 has anti-reflection properties and blue light blocking properties. The surface of the substrate 2 on the inside of the multilayer film 4 is the film-mounting surface F. When multiple multilayer films 4 are provided, they are preferably provided on opposing surfaces of the plate-shaped substrate 2 as the film-mounting surfaces F. For ease of explanation, the following mainly describes a case where one multilayer film 4 is provided on one film-mounting surface F. Note that the multilayer film 4 may be provided on the film-mounting surface F of the plate-shaped substrate 2, and another type of film may be provided on the surface opposite to the film-mounting surface F. The other type of film may be, for example, a dielectric multilayer film having anti-reflection properties, or a coating film that suppresses at least one of scratches and cracks. The multilayer film 4 is indirectly provided on the film-mounting surface F via an intervening film 3. The intervening film 3 is a hard coat film. The multilayer film 4 may be formed directly on the film-mounting surface F, or may be formed via another type of intervening film 3 instead of or together with the hard coat film. When multiple multilayer films 4 are provided, the types of intervening films 3 added on each film-mounting surface F of the substrate 2 may be different from each other, or the presence or absence of an intervening film 3 may be different from each other. Whether the multilayer film 4 is provided directly or indirectly on the film-mounting surface F, it is disposed above the film-mounting surface F, i.e., on the atmospheric side.

[0013] The hard coat film is preferably formed by uniformly applying a hard coat liquid to the surface of the substrate 2 . Furthermore, organosiloxane-based resins containing inorganic oxide microparticles can be preferably used as materials for the hard coat film. In this case, the hard coat solution is preferably prepared by dispersing (mixing) a solute mainly composed of an organosiloxane-based resin and an inorganic oxide microparticle sol in a water or alcohol-based solvent. The organosiloxane-based resin is preferably obtained by hydrolyzing and condensing an alkoxysilane. Specific examples of organosiloxane-based resins include γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, methyltrimethoxysilane, ethyl silicate, or combinations thereof. These alkoxysilane hydrolysis condensates are produced by hydrolyzing the alkoxysilane compound or a combination thereof in an acidic aqueous solution such as hydrochloric acid. Specific examples of inorganic oxide fine particles include zinc oxide, silicon dioxide (silica fine particles), aluminum oxide, titanium oxide (titania fine particles), zirconium oxide (zirconia fine particles), tin oxide, beryllium oxide, antimony oxide, tungsten oxide, and cerium oxide sols, either singly or in combination. The diameter of the inorganic oxide fine particles is preferably 1 nm (nanometer) to 100 nm, more preferably 1 nm to 50 nm, from the viewpoint of ensuring the transparency of the hard coat film. Furthermore, the amount (concentration) of the inorganic oxide fine particles is preferably 40 wt% to 60 wt% (mass percent) of the total components of the hard coat film, from the viewpoint of ensuring an appropriate level of at least one of hardness and toughness in the hard coat film. Additionally, at least one of acetylacetone metal salt and ethylenediaminetetraacetic acid metal salt may be added to the hard coat solution as a curing catalyst. Furthermore, surfactants, colorants, solvents, etc. may be added to the hard coat liquid as needed to ensure at least one of adhesion to the substrate 2 and ease of formation. The physical thickness of the hard coat film is preferably 0.5 μm (micrometers) to 4.0 μm, and more preferably 1.0 μm to 3.0 μm. The lower limit of this film thickness range is determined because it is difficult to obtain sufficient hardness if the film is thinner than this. On the other hand, the upper limit is determined because a thicker film significantly increases the possibility of problems with physical properties, such as cracking or brittleness. Furthermore, from the viewpoint of improving the adhesion of the hard coat film, a primer film may be added as the intervening film 3 between the hard coat film and the surface of the substrate 2. Examples of materials for the primer film include polyurethane resins, acrylic resins, methacrylic resins, organosilicon resins, and combinations thereof. The primer film is preferably formed by uniformly applying a primer liquid to the surface of the substrate 2. The primer liquid is preferably a liquid obtained by mixing the above-mentioned resin material and inorganic oxide fine particles in a water or alcohol-based solvent.

[0014] The multilayer film 4 includes one or more low refractive index layers 6, one or more high refractive index layers 8, an absorbing layer 10, and an antifouling layer 12. The antifouling layer 12 may be omitted. Alternatively, the antifouling layer 12 may be treated as an independent thin film rather than as a component of the multilayer film 4.

[0015] From the viewpoint of obtaining good antireflection properties, it is preferable that a plurality of low-refractive index layers 6 and a plurality of high-refractive index layers 8 are disposed, and that they are disposed alternately. Preferably, a total of five or more low-refractive index layers 6 and high-refractive index layers 8 are provided (four or more when the absorbing layer 10 plays the role of the low-refractive index layer 6 or the high-refractive index layer 8), and more preferably seven or more low-refractive index layers 6 and high-refractive index layers 8 (six or more when the absorbing layer 10 plays the role of the low-refractive index layer 6 or the high-refractive index layer 8). In Fig. 1, the first layer in the multilayer film 4, which is the layer closest to the substrate 2, is the low refractive index layer 6. Also in Fig. 1, the adjacent layer in the multilayer film 4 adjacent to the absorbing layer 10 on the substrate 2 side is the low refractive index layer 6. Furthermore, in Fig. 1, the adjacent layer in the multilayer film 4 adjacent to the absorbing layer 10 on the air side is the high refractive index layer 8. The total number of low refractive index layers 6 and high refractive index layers 8 in the multilayer film 4 in Fig. 1 is an odd number (5). The configuration of the multilayer film 4 is not limited to that of the multilayer film 4 shown in Fig. 1. For example, the first layer of the multilayer film 4 may be a high refractive index layer 8. Furthermore, the adjacent layer on the substrate 2 side of the absorbing layer 10 may be a high refractive index layer 8. Furthermore, the adjacent layer on the air side of the absorbing layer 10 may be a low refractive index layer 6. The total number of low refractive index layers 6 and high refractive index layers 8 may be four or less, or may be six or more.

[0016] The low refractive index layer 6 is preferably formed by vapor deposition of a low refractive index vapor deposition material. The low refractive index layer 6 is made of a low refractive index material. The low refractive index layer 6 is preferably made of a dielectric material. Examples of the low refractive index material include at least one of silicon oxide (particularly SiO2) and magnesium fluoride (particularly MgF2). The low refractive index material may be a mixture or composite of two or more materials, such as a mixture of SiO2 and Al2O3. The high refractive index layer 8 is preferably formed by vapor deposition of a high refractive index vapor deposition material. The high refractive index layer 6 is made of a high refractive index material. The high refractive index layer 8 is preferably made of a dielectric material. Examples of high refractive index materials include at least one of zirconium oxide (particularly ZrO2), titanium oxide (particularly TiO2), tantalum oxide (particularly Ta2O5), and niobium oxide (particularly Nb2O5). The refractive index of the high refractive index layer 8 is, for example, 1.8 or higher. The high refractive index material may be a mixture or composite of two or more materials. The deposition is preferably performed by vacuum deposition. Alternatively, deposition may be performed with the assistance of ions such as oxygen ions and / or argon ions, or while performing plasma treatment. At least one of the low refractive index layer 6 and the high refractive index layer 8 may be formed by a method other than deposition, such as sputtering.

[0017] The absorption layer 10 is a layer containing SnO2 which is completely oxidized Sn (i.e., SnO2 layer), or a layer containing tin oxide that has oxygen deficiency and is not completely oxidized. The absorption layer 10 absorbs blue light in the visible range. The absorption layer 10 is preferably formed by vapor deposition using Sn or SnO2 as a vapor deposition source. The vapor deposition is preferably performed by vacuum vapor deposition. Also, the vapor deposition may be performed while assisted by ions such as at least one of oxygen ions and argon ions, or while performing plasma treatment. Incidentally, the absorption layer 10 may be formed by other methods than vapor deposition such as sputtering. The degree of oxidation of the absorption layer 10 may vary depending on film formation conditions such as vapor deposition conditions. From this perspective, the absorption layer 10 is a SnO z (0 < z ≤ 2) containing layer, which can be represented as a SnO z layer. z often takes a relatively large value of about 1.8 or more. In the SnO z (0 < z < 2) layer, oxygen deficiency occurs. In the SnO z (z = 2) layer, no oxygen deficiency occurs. Hereinafter, unless otherwise specified, z of the SnO z and SnO z layer is assumed to be 0 < z ≤ 2. To accurately determine z in the absorption layer 10, it is necessary to observe a large number of atoms with an electron microscope etc. and count them for each type, which requires a great deal of cost and is not practical. The actual microscopic physical structure of the multilayer film 4 including the absorption layer 10 cannot be easily grasped even by those skilled in the art. Therefore, for example, the absorption layer 10 can be expressed as a layer formed by oxidizing Sn, or a layer formed by causing oxygen deficiency in SnO2.

[0018] In the SnO z layer which is the absorption layer 10, the greater the degree of oxygen deficiency, the greater the degree of absorption of blue light. The degree of oxygen deficiency, that is, the magnitude of (2 - z), can be controlled with a predetermined accuracy by setting the film formation conditions. Incidentally, when a layer containing SnO2 is formed for antistatic purposes, in order to suppress the influence on the optical performance due to the addition of the layer containing SnO2 as much as possible, the film formation conditions of the layer containing SnO2 are set so as to suppress the oxygen deficiency of the layer containing SnO2 as much as possible and suppress the absorption of light as much as possible. The absorption layer 10 has blue light blocking properties through absorption. z SnO provides the absorption layer 10 with blue light blocking properties. z is a substance that provides blue light blocking performance, that is, a blue light blocking material. The absorption layer 10 is SnO z The refractive index of the layer is about 1.9 to 2.2 depending on the degree of oxygen deficiency. In the absorption layer 10, SnO z For example, in the absorber layer 10, SnO z The mass % of the absorbent layer 10 is preferably 50 mass % or more, and more preferably 80 mass % or more.

[0019] The absorbing layer 10 is preferably arranged in a layer other than the outermost layer and the next outermost layer in the multilayer film 4. The outermost layer is the layer farthest from the substrate 2, excluding the antifouling layer 12. The next outermost layer is the layer adjacent to the outermost layer on the substrate 2 side. In other words, the absorbing layer 10 is preferably not arranged in the outermost layer in the multilayer film 4. Furthermore, the absorbing layer 10 is preferably not arranged in the next outermost layer in the multilayer film 4. In the multilayer film 4, the absorbing layer 10 is preferably adjacent to the high refractive index layer 8 on the substrate 2 side. In other words, the layer adjacent to the absorbing layer 10 on the air side is preferably the high refractive index layer 8. In this case, the scratch resistance of the multilayer film 4 is improved, making the multilayer film 4 less susceptible to scratches. From the viewpoint of further improving the scratch resistance of the multilayer film 4, the physical film thickness of the high refractive index layer 8 adjacent to the absorbing layer 10 on the air side is preferably 25 nm or more, more preferably 30 nm or more, and even more preferably 35 nm or more. In FIG. 1, the absorbing layer 10 is disposed adjacent to the high refractive index layer 8, which is the next outermost layer, on the substrate 2 side.

[0020] The preferred physical film thickness of the absorption layer 10 is determined by balancing the need to ensure a predetermined degree of blue light blocking performance and the need to prevent a decrease in anti-reflection performance. The greater the physical film thickness of the absorption layer 10, the greater the amount of blue light absorbed and the greater the degree to which blue light is blocked. Also, the greater the physical film thickness of the absorption layer 10, the more difficult it becomes to design it to exhibit anti-reflection function in combination with the low refractive index layer 6 and the high refractive index layer 8. Therefore, the lower limit of the preferred range of the physical thickness of the absorber layer 10 is, for example, 20 nm, 25 nm, 30 nm, or 35 nm, and the upper limit of the preferred range of the physical thickness of the absorber layer 10 is, for example, 60 nm, 55 nm, 50 nm, or 45 nm.

[0021] From the viewpoint of obtaining sufficient anti-reflection performance, the luminous reflectance of the spectacle lens 1 having the multilayer film 4 is preferably 2% or less, more preferably 1.5% or less, and even more preferably 1% or less. The luminous reflectance is specified in JIS T 7334:2011. JIS T 7334:2011 is based on ISO 8980-4:2006. In the eyeglass lens 1 having the multilayer film 4, the average reflectance in the wavelength range of 400 nm or more and 500 nm or less, i.e., the average reflectance in the blue range, is preferably 2% or less, more preferably 1.5% or less, and even more preferably 1% or less, from the viewpoint of obtaining sufficient anti-reflection performance. The luminous transmittance of the eyeglass lens 1 having the multilayer film 4 is preferably 85% or more, more preferably 90% or more, and even more preferably 95% or more, from the viewpoint of obtaining sufficient visibility while also obtaining blue light blocking performance. The luminous transmittance is specified in JIS T 7333:2018. JIS T 7333:2018 is based on ISO 8980-3:2013.

[0022] From the viewpoint of more fully reducing eye strain, the blue light blocking rate, i.e., blue light blocking rate, of the spectacle lens 1 having the multilayer film 4 is preferably 10% or more, more preferably 14% or more, and even more preferably 20% or more. In particular, when a substrate 2 having ultraviolet absorption properties is provided, the blue light blocking rate of the spectacle lens 1 having the multilayer film 4 is preferably 14% or more. Furthermore, when a substrate 2 having absorption properties for light with wavelengths of 420 nm or less is provided, the blue light blocking rate of the spectacle lens 1 having the multilayer film 4 is preferably 20% or more. The blue light cut rate is calculated using the formula described in Appendix C of JIS T 7333:2011, based on the guidelines for blue light cut rate established by the Japan Medical Optical Instruments Industry Association. That is, the spectral transmittance τ weighted by the irradiance distribution of sunlight and its radiation spectral risk (blue light hazard function B(λ)) sb (wavelength 380-500nm range, 5nm step, following number 1) is subtracted from 1. sb This formula is also described as Solar blue-light transmittance in Annex E of ISO 8980-3:2022.

[0023]

number

[0024] 2, the absorption layer 10 cuts blue light, so that the reflected light from the multilayer film 4 differs when viewed from the air side and when viewed from the eyeball side. Even though the multilayer film 4 has an anti-reflection function, a slight reflected light is observed, as is the case with ordinary eyeglass lenses. In the multilayer film 4 arranged on the atmospheric side of the substrate 2 in Figure 2, a low refractive index layer 6, a high refractive index layer 8, an absorption layer 10 and a low refractive index layer 6 are arranged in this order from the outermost layer toward the substrate 2 side. 2, when viewed from the air side, reflected light R1 at interface I1 of the outermost layer on the air side, reflected light R2 at interface I2 between the outermost layer and the next outermost layer, and reflected light R3 at interface I3 of the next outermost layer on the substrate 2 side are generated relatively strongly without being absorbed by the absorbing layer 10. On the other hand, due to absorption by the absorbing layer 10, reflected light R4 at interface I4 of the absorbing layer 10 on the substrate 2 side and reflected light R5 at interface I5 of the low refractive index layer 6 on the substrate 2 side are generated relatively weakly. On the other hand, when viewed from the eyeball side, the reflected light R6 at interface I5 and the reflected light R7 at interface I4 are relatively strong, while the reflected light R8 at interface I3, the reflected light R9 at interface I2, and the reflected light R10 at interface I5 are relatively weak. Therefore, when the absorbing layer 10 is present, the color of the reflected light when viewed from the air side of the multilayer film 4 differs from the color of the reflected light when viewed from the eyeball side.

[0025] Such color differences can be suppressed by designing the multilayer film 4. For example, if the absorbing layer 10 is disposed closer to the substrate 2 than the high refractive index layer 8 closest to the atmosphere, the difference in color can be suppressed. Furthermore, in the multilayer film 4, the arrangement of the low refractive index layer 6 and the high refractive index layer 8 on the atmospheric side of the absorption layer 10 is substantially the same as the arrangement of the low refractive index layer 6 and the high refractive index layer 8 on the substrate 2 side of the absorption layer 10, thereby making it possible to suppress color differences. Furthermore, in the multilayer film 4, the color difference can be suppressed by making the sum of the physical film thicknesses of the low refractive index layers 6 on the atmospheric side of the absorbing layer 10 substantially equal to the sum of the physical film thicknesses of the low refractive index layers 6 on the substrate 2 side of the absorbing layer 10, and by making the sum of the physical film thicknesses of the high refractive index layers 8 on the atmospheric side of the absorbing layer 10 substantially equal to the sum of the physical film thicknesses of the high refractive index layers 8 on the substrate 2 side of the absorbing layer 10.

[0026] From the viewpoint of sufficiently suppressing color differences, it is preferable that the absolute value of the difference between the color x of the reflected light viewed from the air side and the color x of the reflected light viewed from the eyeball side at x in the xy chromaticity diagram of the CIE 1931 XYZ color system in the multilayer film 4 is within 0.04. Also, it is preferable that the absolute value of the difference between the color y of the reflected light viewed from the air side and the color y of the reflected light viewed from the eyeball side at y in the xy chromaticity diagram in the multilayer film 4 is within 0.06. Furthermore, from the viewpoint of obtaining the green reflected light that is preferred for the eyeglass lens 1 when viewed from both the air side and the eyeball side, the colors of both reflected lights in the multilayer film 4 are preferably both within the ranges of 0.10≦x≦0.25 and 0.35≦y≦0.60, or both within the ranges of 0.25≦x≦0.35 and 0.40≦y≦0.60.

[0027] The antifouling layer 12 is disposed on top of the absorbent layer 10, i.e., on the atmospheric side of the absorbent layer 10. The antifouling layer 12 imparts an antifouling function to the spectacle lens 1. The antifouling function includes at least one of a water-repellent function and an oil-repellent function. The antifouling layer 12 is formed by a known method such as vapor deposition or ion sputtering.

[0028] The antifouling layer 12 is formed by polycondensation of, for example, an organosilicon compound. Polycondensation allows the coating to be thicker and denser, improving adhesion to adjacent layers in the multilayer film 4 and surface hardness. Therefore, the antifouling layer 12 exhibits oil repellency in addition to water repellency. Furthermore, the antifouling layer 12 is more likely to have excellent wipeability. The organosilicon compound before polycondensation is preferably -SiR y X 3-y (R is a monovalent organic group, X is a hydrolyzable group, and y is an integer of 0 to 2). Here, X is, for example, an alkoxy group such as -OCH3 or -OCH2CH3, an acyloxy group such as -OCOCH3, or -ON=CR a R b ketoxime groups (R a ,R beach represents a monovalent organic group), halogen groups such as -Cl and -Br, and -NR c R d Amino groups such as (R c ,R d represents a monovalent organic group). As such an organosilicon compound, a fluorine-containing organosilicon compound is suitable. Fluorine-containing organosilicon compounds are comprehensively excellent in water and oil repellency, electrical insulation, mold releasability, solvent resistance, lubricity, heat resistance, and antifoaming properties. In particular, organosilicon compounds with a relatively large molecular weight of about 1,000 to 50,000 and containing a perfluoroalkyl group or perfluoropolyether group in the molecule have excellent antifouling properties.

[0029] The multilayer film 4 can impart optical functions and optical characteristics to the eyeglass lens 1. For example, the optical function is at least one of an anti-reflection function and a blue light blocking function. Also, for example, the optical characteristic is at least one of an anti-reflection characteristic and a blue light blocking characteristic. Furthermore, the antifouling layer 12 of the multilayer film 4 provides the spectacle lens 1 with antifouling function and properties.

[0030] The eyeglasses made using the eyeglass lens 1 have the same functions as the eyeglass lens 1. [Example]

[0031] Examples of the present invention and comparative examples not belonging to the present invention are shown below. The following examples are not intended to limit the scope of the present invention. Depending on how the present invention is interpreted, some of the following examples may essentially be comparative examples, or some of the following comparative examples may essentially be examples.

[0032] First, regarding the multilayer film 4, the spectral reflectance distribution in the visible range was calculated for film configurations 1 to 3 and film configurations A to C by computer simulation. The visible range is 380 nm or more and 780 nm or less. The visible range may be outside of the above range. For example, the lower limit of the visible range may be 390 nm, 400 nm, 410 nm, or 420 nm. The upper limit of the visible range may be 800 nm, 760 nm, 740 nm, or 700 nm. The materials and physical film thicknesses of the layers in film configurations 1 to 3 and film configurations A to C are shown in Table 1 below.

[0033] [Table 1]

[0034] The substrates 2 on which the film configurations 1 to 3 and the film configurations A to C are formed are identical to one another. The refractive index of the substrate 2 is 1.60. The material of the substrate 2 corresponds to a thiourethane resin. The thickness of the substrate 2 is 1.8 mm. The substrate 2 is a spectacle lens substrate, and is a convex lens with a diopter of S-0.00. The extinction coefficient of the substrate 2 is set in accordance with the ultraviolet absorption properties exhibited by ultraviolet absorbing materials for general spectacle lens substrates. The interposing films 3 interposed between the substrate 2 and the film configurations 1 to 3 and film configurations A to C are identical to each other. The interposing film 3 is a hard coat film. The refractive index of the interposing film 3 is 1.60. The material of the interposing film 3 corresponds to a thermosetting silicone resin. The physical thickness of the interposing film 3 is 2.0 μm. The antifouling layers 12 are the same in all of the film configurations 1 to 3 and the film configurations A to C. The antifouling layers 12 correspond to a general water-repellent film. The refractive index of the antifouling layer 12 at a wavelength of 500 nm is 1.35. Film configurations 1 to 3 and film configurations A to C are formed only on the convex surface of the substrate 2, that is, on the air-side surface of the substrate 2. No film is formed on the concave surface of the substrate 2, that is, the surface on the eyeball side.

[0035] In all of the film configurations 1 to 3 and film configurations A to C, the low refractive index layer 6 corresponds to an SiO2 layer made of SiO2. The refractive index of the SiO2 layer at a wavelength of 500 nm was set to 1.47. The extinction coefficient of the SiO2 layer was analyzed from the measurement results of an actual SiO2 layer. The high refractive index layers 8 are all ZrO2 layers. The refractive index of the ZrO2 layer at a wavelength of 500 nm is 2.11. The extinction coefficient of the ZrO2 layer was analyzed from the measurement results of an actual ZrO2 layer. Furthermore, in the film configurations 1 to 3 and the film configurations A to C, the absorption layer 10 is SnO z The refractive index of the layer at a wavelength of 500 nm was set to 2.18. z The extinction coefficient of the layer was 0.0937 at a wavelength of 450 nm, 0.0608 at a wavelength of 500 nm, 0.0369 at a wavelength of 550 nm, and 0.0205 at a wavelength of 600 nm. The physical film thickness of the absorbing layer 10 is 40 nm in all of the film configurations 1 to 3 and film configurations A to C. With such a physical film thickness of the absorbing layer 10, blue light blocking performance that sufficiently reduces strain on the eyes can be obtained. In film configurations 1 to 3 and film configurations A to C, the number of layers in the multilayer film 4 is all seven. The layer in the multilayer film 4 closest to the substrate 2 is the first layer, and the seventh layer, which is the layer closest to the atmosphere, is an antifouling layer 12. Furthermore, the configuration of the multilayer film 4 excluding the antifouling layer 12 and the absorbing layer 10 is an alternating film of SiO2 layers and ZrO2 layers, with the first layer being an SiO2 layer.

[0036] In film configurations 1 to 3, the absorbing layer 10 is disposed as the fourth layer. The layer adjacent to the absorbing layer 10 on the air side is a ZrO2 layer. In film configurations 1 to 3, the absorbing layer 10 is not disposed as the outermost layer, which is the layer closest to the air side, except for the antifouling layer 12. Furthermore, the absorbing layer 10 is not disposed as the next outermost layer adjacent to the outermost layer on the substrate 2 side. In the film configurations A to C, the absorption layer 10 is disposed as the fifth layer. The layer adjacent to the absorption layer 10 on the air side is an SiO2 layer. In the film configurations A to C, the absorption layer 10 is disposed as the next outermost layer.

[0037] The simulation results for such film configurations 1 to 3 and film configurations A to C are shown in FIGS. 3, 4, and 5, as well as Table 2 below. Luminous reflectance is calculated using a D65 illuminant at a 2° observer.

[0038] [Table 2]

[0039] In film configurations A to C, the difference between the color of reflected light seen from the air side (i.e., air-side reflected color) and the color of reflected light seen from the eye side (i.e., eyeball-side reflected color) is relatively large. In film configurations A and C, the absolute value of the difference between the x of the air-side reflected color and the x of the eyeball-side reflected color exceeds 0.04. Furthermore, in film configurations A to C, the absolute value of the difference between the y of the air-side reflected color and the y of the eyeball-side reflected color exceeds 0.06. The eyeball-side reflected colors of film configurations A to C are both outside the above-mentioned x and y ranges associated with green, which is generally preferred as the color of reflected light from eyeglass lenses. The luminous reflectance of the air-side reflected color and eyeball-side reflected color of each of the film configurations A to C is 2% or less. The average reflectance in the blue region of the eyeball-side reflected color for film configurations A and C exceeds 2%.

[0040] In film configurations 1 to 3, the difference between the air-side reflected color and the eye-side reflected color is suppressed. In film configurations 1 to 3, the absolute value of the difference between the x of the air-side reflected color and the x of the eye-side reflected color is within 0.04. Furthermore, in film configurations 1 to 3, the absolute value of the difference between the y of the air-side reflected color and the y of the eye-side reflected color is within 0.06. In the x and y of film configurations 1 to 3, both the air-side reflected color and the eyeball-side reflected color are within the above-mentioned x and y ranges for a preferable green color. The luminous reflectance of the air-side reflected color and eyeball-side reflected color of each of the film configurations 1 to 3 is 2% or less. The average reflectance in the blue region of the air-side reflected color and the eyeball-side reflected color of each of the film configurations 1 to 3 is 2% or less.

[0041] Furthermore, Examples 1 to 3 were prepared by actually forming the multilayer film 4 according to film configurations 1 to 3, and the above-mentioned substrate 2 and interposed film 3. Furthermore, Comparative Example 1 was prepared by actually forming the multilayer film 4 according to film configuration A, and the above-mentioned substrate 2 and interposed film 3. The multilayer films 4 according to film configurations 1 to 3 and A were formed on the atmospheric side of the interposed film 3. In Examples 1 to 3 and Comparative Example 1, no film was formed on the eyeball-side surface of the substrate 2. More specifically, the interposed film 3 in Examples 1 to 3 and Comparative Example 1 was formed as follows. Specifically, 206 g (grams) of methanol, 300 g of methanol-dispersed titania sol (manufactured by JGC Catalysts and Chemicals, 30% solids), 60 g of γ-glycidoxypropyltrimethoxysilane, 30 g of γ-glycidoxypropylmethyldiethoxysilane, and 60 g of tetraethoxysilane were added dropwise to a reaction vessel, and a 0.01 N aqueous hydrochloric acid solution was added dropwise to the mixture and stirred to hydrolyze. Next, 0.5 g of a flow control agent and 1.0 g of a catalyst were added, and the mixture was stirred at room temperature for 3 hours to form a hard coat solution. This hard coat solution was applied to the air-facing surface of the substrate 2 and heat-cured at 120°C for 1.5 hours to form a hard coat film with a thickness of 2.0 μm.

[0042] Moreover, the low refractive index layers 6, ie, SiO2 layers, of Examples 1 to 3 and Comparative Example 1 are deposited using SiO2 as a deposition material. Furthermore, each of the high refractive index layers 8, ie, ZrO2 layers, in Examples 1 to 3 and Comparative Example 1 is deposited using ZrO2 as a deposition material. In addition, the absorption layer 10 of each of Examples 1 to 3 and Comparative Example 1, i.e., SnO Z The layer is deposited using SnO2 as the deposition material.

[0043] Furthermore, a multilayer film 4 having film structure D of a general anti-reflection film with an antifouling film, as shown in Table 3 below, was actually formed as Comparative Example 4 in the same arrangement of the substrate 2, interposed film 3, and multilayer film 4 as in Examples 1 to 3 and Comparative Example 1. Note that Comparative Examples 2 and 3 are missing numbers. Furthermore, multilayer films 4 having two types of film configurations E and F related to general reflective blue light cut films shown in Table 3 below were actually formed as Comparative Examples 5 and 6 in the same arrangement of substrate 2, interposed film 3, and multilayer film 4 as in Examples 1 to 3 and Comparative Example 1.

[0044] [Table 3]

[0045] Then, the average reflectance in the blue region, the luminous reflectance in a 2° field of view with a D65 light source, and x and y were actually measured for the reflected light as seen from the air side and the reflected light as seen from the eyeball side in Examples 1 to 3 and Comparative Examples 1, 4 to 6. In addition, the actual center thickness of the substrate 2 in Examples 1 to 3 and Comparative Examples 1, 4 to 6 was also actually measured. The results of these measurements are shown in Table 4 below.

[0046] [Table 4]

[0047] Furthermore, the spectral reflectance distributions of the reflected light viewed from the air side and the reflected light viewed from the eyeball side in Examples 1 to 3 and Comparative Examples 1 and 4 to 6 were actually measured. The results of these measurements are shown in FIGS.

[0048] In Examples 1 to 3 and Comparative Example 1, the same air-side reflected color, eyeball-side reflected color, etc. as in the simulations for the corresponding film configurations 1 to 3 and film configuration A are obtained. In Comparative Example 4, which has film structure D related to a general anti-reflection film, there is no layer that absorbs visible light, so the air-side reflected color and the eye-side reflected color are very similar. However, Comparative Example 4 does not have blue light blocking performance. In Comparative Examples 5 and 6, which have film configurations E and F relating to films that reflect blue light, the average reflectance in the blue region is large, and the air-side reflected color and eyeball-side reflected color are blue, not green.

[0049] Furthermore, a scratch resistance test was conducted on Examples 1 to 3 and Comparative Examples 1 and 4. The scratch resistance test included a normal test and an accelerated test. In the standard test, steel wool #000 was pressed against the surface of the test object facing the multilayer film 4 with a load of 2 kg (kilograms), and the steel wool was reciprocated 100 times at a speed of 2.5 seconds per reciprocation. The test object was then illuminated by a white LED light source 3 m (meters) away, and the number of scratches visible in the center of the reciprocating area was counted. Furthermore, depending on the number of scratches, a rating of "◎" was given for 0 to 1 scratch, a rating of "○" for 2 to 3 scratches, and a rating of "△" for 4 or more scratches. In the accelerated test, the test object was first placed in a Sunshine Weather Meter (S80B manufactured by Suga Test Instruments Co., Ltd.) under conditions of a temperature of 60°C and a humidity of 50% RH for 60 hours. After that, as in the normal test, steel wool #000 was applied to the test object, and the number of scratches was counted and an evaluation was given. Table 5 below shows the results of the scratch resistance test.

[0050] [Table 5]

[0051] In Examples 1 to 3, SnO Z In Examples 1 and 3, the SnO Z The number of scratches is smaller and scratch resistance is superior compared to when the layer is placed on the atmospheric side of the ZrO2 layer. The scratch resistance of Example 2 is similar to that of Comparative Example 1. However, scratch resistance is higher than SnO Z The scratch resistance of Example 2 is also affected by the physical thickness of the layer adjacent to the layer on the air side. The physical thickness of Example 2 is 10 nm, which is thinner than Examples 1 and 3, and the scratch resistance of Example 2 is relatively low. Furthermore, the scratch resistance of Example 3, in which the physical thickness is 30 nm, is sufficient, and the scratch resistance of Example 3, in which the physical thickness is 60 nm, is even more sufficient. Therefore, from the viewpoint of scratch resistance, SnO Z It is more preferable that the layer is disposed on the substrate 2 side of the ZrO2 layer and that the physical film thickness of the ZrO2 layer is 30 nm or more.

[0052] Furthermore, as shown in the left part of Table 6 below, film configurations 1 to 3 and D to F were actually formed on the air-side surface and eyeball-side surface of the substrate 2, thereby forming Examples 4 to 6 and Comparative Examples 7 to 8. The substrate 2 in Examples 4 to 6 and Comparative Examples 7 to 8 is the same as that in Examples 1 to 3 and Comparative Examples 1, 4 to 6. In Examples 4 to 6, an absorptive blue light blocking film is disposed on the surface of the substrate 2 facing the atmosphere, and an anti-reflection film is disposed on the surface of the substrate 2 facing the eyeball. In Comparative Example 7, anti-reflection films were disposed on both the air-side surface and the eyeball-side surface of the substrate 2. In Comparative Example 8, a reflective blue light blocking film was disposed on each of the air-side and eyeball-side surfaces of the substrate 2.

[0053] [Table 6]

[0054] As shown on the right side of Table 6, the substrate center thickness, luminous transmittance, and blue light blocking rate were actually measured for Examples 4 to 6 and Comparative Examples 7 to 8. As shown in FIGS. 10 and 11, the spectral transmittance distributions in the visible range and adjacent ranges for Examples 4 to 6 and Comparative Examples 7 and 8 were actually measured. In Comparative Example 7, the luminous transmittance is excellent, but the blue light blocking rate is small. In Comparative Example 8, the blue light blocking rate was 14% or more, which was sufficient, and the luminous transmittance was 90% or more, which was also sufficient. However, in Comparative Example 8, the reflected light was relatively strong and the reflected color was blue. In Examples 4 to 6, the blue light blocking rate was 14% or more, which was sufficient, and the luminous transmittance was 90% or more, which was sufficient. Furthermore, in Examples 4 to 6, the reflected light was relatively weak and the reflected color was green. Furthermore, in Examples 4 to 6, the air-side reflected color and the eyeball-side reflected color were similar to each other.

[0055] In addition, as shown in the left part of Table 7 below, film configurations 1 and D to F were actually formed on the air-side surface and the eyeball-side surface of the substrate 2, thereby forming Example 7 and Comparative Example 9. The substrate 2 in Example 7 and Comparative Example 9 is different from the substrate 2 in Examples 1 to 6 and Comparative Examples 1, 4 to 8. The substrate 2 in Example 7 and Comparative Example 9 contains a blue light absorbing material, which is a substance that absorbs part of blue light (light on the short wavelength side of the blue region). Except for the inclusion of such a blue light absorbing material, the substrate 2 in Example 7 and Comparative Example 9 is similar to the substrate 2 in Examples 1 to 6 and Comparative Examples 1, 4 to 8. In Example 7, an absorptive blue light cut film is disposed on the air-side surface of the blue light absorbing substrate 2, and an anti-reflection film is disposed on the eyeball-side surface of the substrate 2. In Comparative Example 9, a reflective blue light blocking film was disposed on each of the air-side and eyeball-side surfaces of the substrate 2.

[0056] [Table 7]

[0057] As shown on the right side of Table 7, the substrate center thickness, luminous transmittance, and blue light blocking rate were actually measured for Example 7 and Comparative Example 9. Furthermore, as shown in FIG. 12, the spectral transmittance distributions in the visible range and adjacent ranges for Example 7 and Comparative Example 9 were actually measured. In Comparative Example 9, the blue light blocking rate was 20% or more, which was sufficient, and the luminous transmittance was 90% or more, which was sufficient for all cases. However, in Comparative Example 9, the reflected light was relatively strong and the reflected color was blue. In Example 7, the blue light blocking rate is sufficient at 20% or more, and the luminous transmittance is sufficient at 90% or more. Furthermore, in Example 7, the reflected light is relatively weak and the reflected color is green. Furthermore, in Example 7, the air-side reflected color and the eyeball-side reflected color are similar to each other.

[0058] The configurations and effects of Examples 1 to 7 will be mainly summarized below. The spectacle lenses 1 of Examples 1 to 7 include a base material 2 and a multilayer film 4 indirectly disposed on the film arrangement surface F of the base material 2. The multilayer film 4 includes one or more low refractive index layers 6, one or more high refractive index layers 8, and an absorption layer 10. The absorption layer 10 contains SnO z (0 < z ≤ 2). The absorption layer 10 is disposed on the side of the base material 2 from the outermost high refractive index layer 8 on the air side. Therefore, a spectacle lens 1 is provided that can sufficiently obtain scratch resistance, visibility, and reduction of eye burden.

[0059] In addition, the absorption layer 10 of Examples 1 to 7 is adjacent to the outermost high refractive index layer 8 on the air side. Therefore, a spectacle lens 1 having even better scratch resistance is provided. Furthermore, in Examples 1, 3 to 4, 6 to 7, the physical film thickness of the outermost high refractive index layer 8 on the air side is 30 nm or more. Therefore, a spectacle lens 1 having even better scratch resistance is provided.

[0060] In addition, the average reflectance in the wavelength range of 400 nm or more and 500 nm or less of Examples 1 to 7 is 2% or less. Therefore, a spectacle lens 1 having even better visibility and appearance is provided. In addition, the visual reflectance of Examples 1 to 7 is 2% or less. Therefore, a spectacle lens 1 having even better visibility and appearance is provided. Furthermore, the visual transmittance of Examples 1 to 7 is 90% or more. Therefore, a spectacle lens 1 having even better visibility is provided.

[0061] Furthermore, the blue light cut-off rate of Examples 1 to 7 is 14% or more. Therefore, a spectacle lens 1 that can further reduce the eye burden is provided. In addition, in Example 7, the blue light cut-off rate is 20% or more, and the base material 2 contains a blue light absorbing material. Therefore, a spectacle lens 1 that can further reduce the eye burden by cooperation with the base material 2 is provided. Furthermore, in Examples 1 to 7, the physical film thickness of the absorption layer 10 is 40 nm which is 60 nm or less. Therefore, a spectacle lens 1 is provided that exhibits sufficient visibility while reducing the eye burden.

[0062] In addition, the high refractive index layer 8 in Examples 1 to 7 is a ZrO2 layer. Also, the low refractive index layer 6 in Examples 1 to 7 is a SiO2 layer. Therefore, the multilayer film 4 is formed more easily. Also, the multilayer film 4 in Examples 1 to 7 includes an antifouling layer 12 that exhibits at least one of water repellency and oil repellency. The antifouling layer 12 is disposed on the air side from the absorption layer 10. Further, the antifouling layer 12 is a fluorine-containing organosilicon compound. Therefore, the spectacle lens 1 with further antifouling properties is provided. Furthermore, the base material 2 in Examples 1 to 7 is made of plastic. Therefore, the spectacle lens 1 that is easier to handle is provided. Furthermore, the multilayer film 4 in Examples 1 to 7 is formed through a hard coat film that is an interposed film 3. Therefore, the spectacle lens 1 that is easier to handle is provided.

[0063] Also, the spectacle lens 1 in Examples 1 to 7 includes a base material 2 and a multilayer film 4 indirectly disposed on the film arrangement surface F of the base material 2. The multilayer film 4 includes one or more low refractive index layers 6, one or more high refractive index layers 8, and an absorption layer 10. The absorption layer 10 contains SnO z (0 < z ≤ 2). The absorption layer 10 is not disposed in the outermost layer that is the layer on the most air side in the multilayer film 4, and is not disposed in the second outermost layer that is the layer adjacent to the base material 2 side in the outermost layer either. Therefore, the spectacle lens 1 that can sufficiently obtain scratch resistance, visibility, and reduction of eye burden is provided.

[0064] Furthermore, the spectacle lens 1 in Examples 1 to 7 includes a base material 2 and a multilayer film 4 indirectly disposed on the film arrangement surface F of the base material 2. The multilayer film 4 includes one or more low refractive index layers 6, one or more high refractive index layers 8, and an absorption layer 10. The absorption layer 10 contains SnO z (0 < z ≤ 2). The absorption layer 10 is disposed on the side of the base material 2 from the low refractive index layer 6 on the most air side, and is disposed on the side of the base material 2 from the high refractive index layer 8 on the most air side. Therefore, the spectacle lens 1 that can sufficiently obtain scratch resistance, visibility, and reduction of eye burden is provided. [Explanation of symbols]

[0065] 1·· Eyeglass lens, 2·· Base material, 3·· Interposed film (hard coat film), 4·· Multilayer film (absorption type blue light blocking film), 6·· Low refractive index layer, 8·· High refractive index layer, 10·· Absorption layer, 12·· Antifouling layer, F·· Film arrangement surface.

Claims

1. A substrate; a multilayer film disposed directly or indirectly on the film-disposition surface of the substrate; It is equipped with the multilayer film includes one or more low refractive index layers, one or more high refractive index layers, and an absorbing layer; The absorbent layer comprises: SnO ｚ (0<z≦2), It is disposed closer to the substrate than the high refractive index layer closest to the atmosphere. A spectacle lens characterized by:

2. The absorbing layer is adjacent to the high refractive index layer closest to the atmosphere.

2. The eyeglass lens according to claim 1.

3. The physical film thickness of the high refractive index layer closest to the atmosphere is 30 nm or more.

2. The eyeglass lens according to claim 1.

4. The physical thickness of the absorption layer is 60 nm or less.

2. The eyeglass lens according to claim 1.

5. The average reflectance in the wavelength range of 400 nm to 500 nm is 2% or less.

2. The eyeglass lens according to claim 1.

6. The visual reflectance is 2% or less 2. The eyeglass lens according to claim 1.

7. Visual transmittance is 90% or more 2. The eyeglass lens according to claim 1.

8. Blue light blocking rate is 14% or more 2. The eyeglass lens according to claim 1.

9. The blue light blocking rate is 20% or more. The substrate contains a blue light absorbing material.

2. The eyeglass lens according to claim 1.

10. The high refractive index layer is made of ZrO ２ Layer 2. The eyeglass lens according to claim 1.

11. The low refractive index layer is made of SiO ２ Layer 2. The eyeglass lens according to claim 1.

12. the multilayer film includes an antifouling layer that exhibits at least one of water repellency and oil repellency; The antifouling layer is disposed closer to the atmosphere than the absorbing layer.

2. The eyeglass lens according to claim 1.

13. The antifouling layer is a fluorine-containing organosilicon compound.

13. The spectacle lens according to claim 12.

14. The substrate is made of plastic 2. The eyeglass lens according to claim 1.

15. The multilayer film is formed via a hard coat film.

2. The eyeglass lens according to claim 1.

16. A substrate; a multilayer film disposed directly or indirectly on the film-disposition surface of the substrate; It is equipped with the multilayer film includes one or more low refractive index layers, one or more high refractive index layers, and an absorbing layer; The absorbent layer comprises: SnO ｚ (0<z≦2), It is not disposed in the outermost layer, which is the layer closest to the atmosphere, of the multilayer film, And, it is not arranged on the next outermost layer, which is a layer adjacent to the outermost layer on the side of the substrate. A spectacle lens characterized by:

17. A substrate; a multilayer film disposed directly or indirectly on the film-disposition surface of the substrate; It is equipped with the multilayer film includes one or more low refractive index layers, one or more high refractive index layers, and an absorbing layer; The absorbent layer comprises: SnO ｚ (0<z≦2), the low refractive index layer is disposed closest to the atmosphere on the substrate side, and is disposed closer to the substrate than the high refractive index layer closest to the atmosphere. A spectacle lens characterized by:

18. A spectacle lens according to any one of claims 1 to 17. Glasses characterized by:

Images