Eyeglass optical article and manufacturing method thereof

Abstract

To provide a more decorative spectacle optical articles.SOLUTION: A spectacle optical article 1 and associated technique are provided, the spectacle optical article having an outer surface 10a on an object side and an inner surface 10b on an eyeball side and containing glossy particles P having diameters in a range of 50-150 μm between the two surfaces.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an eyeglass optical article and a method for manufacturing the same. [Background technology]

[0002] Patent Document 1 describes obtaining component B of an eyeglass lens by vapor deposition of 3D printing ink (e.g.,

[0065] ). Patent Document 1 also describes metallic luster pigments or pearlescent pigments as pigments that can be contained in the 3D printing ink (

[0132] ). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2019-537052 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been an increasing demand for highly decorative eyeglass lenses and eyeglass optical articles such as eyeglasses, sunglasses, or goggles that include such eyeglass lenses.

[0005] The present inventors have focused on glossy particles as a means of enhancing the decorativeness of eyeglass optical articles. The larger the glossy particles, the more noticeable they become, thereby enhancing the decorativeness of the optical article. However, increasing the size of the glossy particles means that the glossy particles are more likely to obstruct light passing through the optical article. In other words, even if a pigment is used in Patent Document 1, the general idea is to make the particles constituting the metallic or pearlescent pigment small enough to be invisible to the naked eye.

[0006] An embodiment of the present invention aims to enhance the decorativeness of eyeglass optical articles. [Means for solving the problem]

[0007] A first aspect of the present invention is The optical article for spectacles has an outer surface facing the object and an inner surface facing the eyeball, and contains glossy particles with particle sizes of 50 to 150 μm between the outer and inner surfaces.

[0008] A second aspect of the present invention is The eyeglass optical article according to the first aspect comprises a glossy particle-containing layer in which glossy particles are contained within a layer having a thickness 1.5 times the maximum particle size of the glossy particles.

[0009] A third aspect of the present invention is The eyeglass optical article according to the second aspect includes a cover layer provided so as to cover the glossy particle-containing layer.

[0010] A fourth aspect of the present invention is The eyeglass optical article according to any one of the first to third aspects includes a substrate containing glossy particles.

[0011] A fifth aspect of the present invention is A substrate; an anti-reflection layer provided so as to cover at least one of an outer surface and an inner surface of the substrate; The eyeglass optical article according to any one of the first to fourth aspects comprises:

[0012] A sixth aspect of the present invention is A substrate; a primer layer provided so as to cover at least one of an outer surface and an inner surface of the substrate; a main layer provided so as to cover the primer layer; Equipped with The spectacle optical article according to any one of the first to fifth aspects, wherein a glossy particle-containing layer, in which glossy particles are contained within a layer having a thickness 1.5 times the maximum particle size of the glossy particles, is composed of glossy particles and at least one of a primer layer and a main layer, and a cover layer provided so as to cover the glossy particle-containing layer is composed of the main layer.

[0013] A seventh aspect of the present invention is In the sixth aspect of the eyeglass optical article, the main layer includes at least one of a smooth layer, a photochromic layer, and a hard coat layer.

[0014] An eighth aspect of the present invention is The sixth or seventh aspect of the spectacle optical article is characterized in that the thickness of the main layer is 20 to 200 μm.

[0015] A ninth aspect of the present invention is a method for manufacturing a semiconductor device comprising: In the spectacle optical article according to any one of the first to eighth aspects, the glossy particles are at least any one of metal or metal oxide particles and particles constituting a pearlescent pigment.

[0016] A tenth aspect of the present invention is a method for manufacturing a semiconductor device comprising: The spectacle optical article is a dyed lens, and is the spectacle optical article according to any one of the first to ninth aspects, having an average transmittance of 8% or more in the portion through which the line of sight passes.

[0017] An eleventh aspect of the present invention is a method for manufacturing a semiconductor device comprising: The spectacle optical article according to any one of the first to ninth aspects is a transparent lens having an average transmittance of 60% or more in the portion through which the line of sight passes.

[0018] A twelfth aspect of the present invention is a method for manufacturing a semiconductor device comprising: The spectacle optical article is the spectacle optical article according to any one of the first to eleventh aspects, which is a spectacle lens, or spectacles, sunglasses or goggles equipped with the spectacle lens.

[0019] A thirteenth aspect of the present invention is a method for manufacturing a semiconductor device comprising: The spectacle optical article according to any one of the first to twelfth aspects, wherein the glossy particles are concentrated in the peripheral portion between the outer and inner surfaces of the spectacle optical article when the spectacle optical article is viewed from the front.

[0020] A fourteenth aspect of the present invention is a method for manufacturing a semiconductor device comprising: This is a method for manufacturing an eyeglass optical article having an outer surface that faces the object and an inner surface that faces the eyeball, and includes incorporating glossy particles having a particle size of 50 to 150 μm between the outer and inner surfaces.

[0021] A fifteenth aspect of the present invention is a method for manufacturing a semiconductor device comprising: A method for producing an eyeglass optical article according to a fourteenth aspect, comprising a step of applying a glossy particle-containing liquid to cover at least one of the outer surface and the inner surface of the substrate.

[0022] A sixteenth aspect of the present invention is a method for manufacturing a semiconductor device comprising: providing a primer layer on the substrate so as to cover at least one of an outer surface and an inner surface of the substrate; dusting the primer layer with gloss particles; a step of applying a raw material liquid for the main layer so as to cover the glossy particles; The method for producing an eyeglass optical article according to the fourteenth or fifteenth aspect of the present invention comprises the steps of:

[0023] Other aspects that can be combined with the above aspects are listed below.

[0024] The eyeglass optical article according to one embodiment of the present invention may be broadly composed of a substrate, which is a main body, and a film provided to cover the substrate. The substrate may also contain glossy particles, or only the film may contain glossy particles.

[0025] A λ / 4 layer may be provided between the substrate and the primer layer.

[0026] The shape of the glossy particles is not limited, but non-spherical particles (e.g., fin-shaped or flake-shaped) may be contained to efficiently reflect light and enhance gloss. The content of non-spherical particles is preferably more than 50% by mass, more preferably 70% by mass or more.

[0027] The glossy particle-containing layer provided on the outer surface (inner surface) may contain glossy particles that account for 90% or more (preferably 95% or more, and more preferably 99% or more) of the glossy particles in the film on the outer surface (inner surface) side.

[0028] The number of the glossy particles contained in the cover layer may be 10% or less (preferably 5% or less, more preferably 1% or less) of the glossy particles in the film.

[0029] The glossy particle-containing layer may have a thickness 1.5 times (preferably 1.3 or 1.2 times) the maximum particle size of the glossy particles, and the glossy particles are contained within the layer.

[0030] An anti-reflection layer may be provided on the outermost surface side of the glossy particle-containing layer provided on the outer surface (and / or inner surface).

[0031] The particle size of the glossy particles is preferably 50 to 70 μm.

[0032] The lower limit of the thickness of the main layer may be 30 μm, and the upper limit may be 70 μm. The range of the thickness of the main layer may be applied to the total thickness of the primer layer and the main layer.

[0033] When the spectacle optical article of one embodiment of the present invention is a tinted lens, in consideration of the visibility of the wearer, the average transmittance of the portion through which the line of sight passes is preferably 8% or more. When the spectacle optical article of one embodiment of the present invention is a transparent lens, the average transmittance of the portion through which the line of sight passes is preferably 60% or more, and more preferably 75% or more. [Effects of the Invention]

[0034] According to one embodiment of the present invention, the decorativeness of eyeglasses and optical articles can be enhanced. [Brief explanation of the drawings]

[0035] [Figure 1] FIG. 1 is a schematic front view of a spectacle lens according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. [Figure 3] FIG. 3 is a schematic cross-sectional view showing a method for manufacturing a spectacle lens according to one embodiment of the present invention. [Figure 4] FIG. 4 is a schematic cross-sectional view of <Specific Example 1>. [Figure 5]FIG. 5 is a schematic cross-sectional view of <Specific Example 7>. DETAILED DESCRIPTION OF THE INVENTION

[0036] <Glasses optical articles> One embodiment of the present invention relates to an eyeglass optical article having an outer surface facing the object and an inner surface facing the eyeball, and containing glossy particles with particle sizes of 50 to 150 μm (preferably 50 to 70 μm) between the two surfaces.

[0037] In an eyeglass optical article according to one embodiment of the present invention, glossy particles are contained between the outer surface, which is the outermost surface, and the inner surface, and glossy particles are not present on either the outer surface or the inner surface. In other words, in an eyeglass optical article according to one embodiment of the present invention, glossy particles are present inside the outer surface, which is the outermost surface, and inside the inner surface, which is the other outermost surface.

[0038] In one embodiment of the present invention, the term "eyeglass optical article" includes unprocessed eyeglass lenses that are fitted to the shape of eyeglass frames, and also includes eyewear that provides a space between the eyes and the eyewear when worn on the face. In other words, eyewear in this specification does not include contact lenses. Eyewear includes eyeglasses equipped with eyeglass lenses that have been processed to fit the shape of eyeglass frames. Sunglasses or goggles are also included in the eyewear in this specification. In this specification, the case where the eyeglass optical article is unprocessed eyeglass lenses is mainly exemplified.

[0039] FIG. 1 is a schematic front view of a spectacle lens according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. FIG. 3 is a schematic cross-sectional view showing a method for manufacturing a spectacle lens according to one embodiment of the present invention.

[0040] When the spectacle optical article 10 is a spectacle lens, the spectacle lens may be any of various lenses, such as a single-vision lens, a multifocal lens, or a progressive-power lens. The type of lens is determined by the surface shapes of both sides of the lens substrate. The surface of the lens substrate may be convex, concave, or flat. In typical lens substrates and spectacle lenses, the surface facing the object side is convex and the surface facing the eyeball is concave, forming a so-called meniscus shape. However, the present invention is not limited to this.

[0041] The "glossy particles P" in one embodiment of the present invention are particles that give the eyeglass optical article 10 a glossy appearance when viewed by a third party other than the wearer of the eyeglass optical article 10. This gloss enhances the decorativeness of the eyeglass optical article 10.

[0042] Known glossy pigments may be used as the material for the glossy particles P. The glossy pigment may be a metallic pigment, a non-metallic pigment, or a mixture of both. The glossy particles P may be at least one of metal or metal oxide particles and particles constituting pearlescent pigments. Titanium mica, glass-based materials such as borosilicate and silicic acid, and bismuth oxychloride may also be used as the glossy particles P.

[0043] There is no limitation on the shape of the glossy particles P, but non-spherical particles (e.g., fin-shaped or flake-shaped) may be contained to efficiently reflect light and enhance gloss. The content of non-spherical particles is preferably more than 50% by mass, more preferably 70% by mass or more.

[0044] The particle size of the glossy particles P is 50 to 150 μm (preferably 50 to 70 μm). Each particle size can be determined by observing the particles with a reflective optical microscope at a magnification of about 100 times. The "particle size" may also be determined as the length of the longest straight line connecting two points on the outline of the particle (i.e., the major axis).

[0045] A specific example is as follows: Five particles may be randomly selected, and the arithmetic mean of the major axes of these particles may be defined as the particle size, that is, the particle diameter of the glossy particles P.

[0046] An eyeglass optical article 10 according to an embodiment of the present invention is broadly composed of a substrate 1, which is a main body, and a film provided to cover the substrate 1 (see, for example, FIGS. 2 and 3).

[0047] The substrate 1 has a substrate outer surface 1a and a substrate inner surface 1b. In the eyeglass optical article 10, the above-mentioned film is formed on the substrate outer surface 1a and / or the substrate inner surface 1b. The eyeglass optical article 10 is thus configured to have an outer surface 10a that faces the object and an inner surface 10b that faces the eyeball. If the eyeglass optical article 10 is spectacles or sunglasses, temples for hanging on the ears are present as components other than the portions on which the film is formed.

[0048] The eyeglass optical article 10 may include a substrate 1 containing the above-mentioned glossy particles P. In this case, the substrate 1 may be produced by pouring a substrate raw material having the glossy particles P dispersed therein into a mold and curing it.

[0049] An example of a configuration in which glossy particles P are contained in the above-mentioned film is as follows. That is, the eyeglass optical article 10 may comprise a substrate 1, a primer layer 2 provided so as to cover at least one of the substrate outer surface 1a and the substrate inner surface 1b, and a main layer 3 provided so as to cover the primer layer 2 (preferably in contact with the primer layer 2) (e.g., Figures 2 and 3). The main layer 3 refers to a layer that is a main layer compared to the primer layer 2. The main layer 3 refers to a layer provided directly on the primer layer 2 and extends to just below the anti-reflection layer 4.

[0050] The glossy particle-containing layer 31, in which the glossy particles P are contained within a layer 1.5 times the thickness of the maximum particle size of the glossy particles P, is preferably composed of at least one of the primer layer 2 and the main layer 3, and the cover layer 32 provided to cover the glossy particle-containing layer 31 is preferably composed of the main layer 3. The primer layer 2 and the main layer 3 preferably contain, excluding the glossy particles P, a resin as their main component (the component that accounts for the maximum mass % of the solid content, and preferably more than 50 mass %).

[0051] The glossy particles P may also be contained in the substrate 1, or only in the film (for example, the film sandwiched between the substrate 1 and the anti-reflection layer 4). Furthermore, the glossy particles P may be contained in at least one of the layers constituting the film, or each layer may be formed by mixing the raw material solution of each layer with the glossy particles P. In this case, however, if the thickness of each layer is smaller than the maximum particle size of the glossy particles P, there is a high possibility that the glossy particles P will be exposed from each layer. Therefore, in order to prevent such exposure, or in other words, to smooth out any unevenness (irregularities) caused by such exposure, it is preferable to provide another layer separately.

[0052] For example, when the primer layer 2 is formed by mixing a raw material solution of the primer layer 2 with glossy particles P, it is preferable to form a smooth layer 3a or a light-controlling layer (described later) directly on the primer layer 2 in order to prevent exposure of the glossy particles P. When the light-controlling layer is formed by mixing a raw material solution of the light-controlling layer with glossy particles P, it is preferable to form a hard coat layer 3b directly on the light-controlling layer in order to prevent exposure of the glossy particles P.

[0053] When forming the hard coat layer 3b by mixing a raw material solution of the hard coat layer 3b with the glossy particles P, it is preferable to form the hard coat layer 3b to a thickness sufficiently thicker than the maximum particle size of the glossy particles P. On the other hand, even if a hard coat layer 3b thinner than the maximum particle size of the glossy particles P is formed and the glossy particles P are exposed from the outermost surface side of the hard coat layer 3b, the glossy particles P will not be exposed if an antireflection layer 4 is formed directly on the hard coat layer 3b. That is, even in this case, in the eyeglass optical article 10, the glossy particles P are present inside the outer surface 10a, which is the outermost surface, and inside the inner surface 10b, which is the other outermost surface.

[0054] In one embodiment of the present invention, in order to improve impact resistance, a primer layer 2 is formed on a substrate 1. Note that a λ / 4 layer (not shown in FIGS. 2 and 3) may be provided between the substrate 1 and the primer layer 2.

[0055] For details of the λ / 4 layer, see, for example, the intermediate layer in JP-A No. 2011-113070, paragraphs 0025 to 0033. For details of the primer layer 2, reference can be made to, for example, paragraphs 0029 and 0030 of JP-A No. 2012-128135 or paragraph 0108 of JP-A No. 2009-67845.

[0056] After the raw material of the primer layer 2 is applied to the substrate 1 (FIG. 3(a)), glossy particles P may be sprinkled on predetermined locations before the applied raw material is cured, and then the raw material may be cured (FIG. 3(b)). By adopting this embodiment, the glossy particles P can be unevenly distributed between the outer surface 10a and the inner surface 10b of the eyeglass optical article 10, in the peripheral portion when the eyeglass optical article 10 is viewed from the front when worn (see, for example, FIG. 1). This "viewed from the front" refers to the direction when facing the wearer wearing the eyeglass optical article 10.

[0057] In one embodiment of the present invention, when the spectacle optical article 10 is viewed from the front, the ear side of the wearer is defined as the X1 direction, the nose side as the X2 direction, the upper side as the Y1 direction, and the lower side as the Y2 direction. The direction perpendicular to the X1-X2 and Y1-Y2 directions is defined as the Z1-Z2 direction. The Z1-Z2 direction may also be the optical axis direction. The Z1 direction is the front as seen from the wearer's perspective, and the Z2 direction is the front as seen from the wearer's perspective. The "front view" is the direction when a wearer wearing the spectacle optical article 10 is viewed in the Z2 direction. The "cross-sectional view" is a cross-sectional view in the Z1-Z2 direction (thickness direction of the spectacle optical article 10).

[0058] Concentrating the glossy particles P in the peripheral portion means that the glossy particles P are (almost) not arranged in the line-of-sight portion of the spectacle optical article 10 (the portion closer to the center of the spectacle lens in the case of eyeglasses). This means that a comfortable field of vision can be obtained for the wearer of the spectacle optical article 10. "Concentrated distribution" here refers to the glossy particles P not being evenly dispersed throughout the entire front-of-eye portion of the spectacle optical article 10 (the spectacle lens held by the frame in the case of eyeglasses) when viewed from the front. "Concentrated distribution of the glossy particles P in the peripheral portion" means that the glossy particles P are more densely concentrated in the peripheral portion of the spectacle optical article 10 than in the line-of-sight portion when viewed from the front.

[0059] By adopting this embodiment, it is possible to set the average transmittance of the line-of-sight portion of the spectacle optical article 10 to a predetermined value or more (specific numerical values ​​will be described later). Here, the "line-of-sight portion of the spectacle optical article 10" refers to the area within a circle with a radius of 1 cm from the center (geometric center, optical center, or centering center) of the front-of-eye portion of the spectacle optical article 10 (the spectacle lens of spectacles) when viewed from the front. Here, the area outside the circle is referred to as the peripheral portion.

[0060] The glossy particles P may be unevenly distributed over the entire peripheral edge portion or only a portion of the peripheral edge portion. When only a portion of the peripheral edge portion is selected, there is no limitation on the location of the uneven distribution, but for example, the glossy particles P may be unevenly distributed above the peripheral edge portion in a front view. The examples in the drawings of the present application correspond to this case.

[0061] After the applied raw material of the primer layer 2 is cured, the ends of the glossy particles P are embedded in the primer layer 2, and the outermost surface is uneven due to the presence of many glossy particles P. Then, a main layer 3 may be provided so as to cover the glossy particles P (FIG. 3(c)).

[0062] The main layer 3 is a layer provided so as to cover the primer layer 2, which is a base layer, and is also a functional layer that has a strength improving function and, in some cases, a light control function. The main layer 3 includes a glossy particle-containing layer 31 provided so as to cover the primer layer 2, and a cover layer 32 provided so as to cover the glossy particle-containing layer 31. As an example, the main layer 3 is composed of the glossy particle-containing layer 31 and the cover layer 32.

[0063] The main layer 3 may smooth out the unevenness (irregularities) of the primer layer 2. There are no limitations on the material of the main layer 3, but the main layer 3 may include at least one of a smooth layer 3a (or a photochromic layer) and a hard coat layer 3b, or may include at least the hard coat layer 3b.

[0064] For details of the photochromic layer, see, for example, Example 1 of JP 2013-114162 A. The photochromic layer is a layer provided on the substrate 1 in the front-of-eye portion of the eyeglass optical article 10 to exhibit photochromic properties. The photochromic layer may be made of a known photochromic material. For example, an organic photochromic dye may be incorporated into the photochromic layer. The organic photochromic dye may exhibit a reversible effect, in which it reacts to light containing ultraviolet light, such as sunlight, in bright outdoor conditions to develop a color, and then returns to its original color (colorless state) when moved indoors in the absence of ultraviolet light, thereby restoring high transmittance. This effect is called photochromism. Furthermore, such photochromic properties can reduce the glare of sunlight.

[0065] For details of the hard coat layer 3b, see, for example, paragraphs 0025, 0026, and 0030 of Japanese Patent Application Laid-Open No. 2012-128135, or the Examples of Japanese Patent Application Laid-Open No. 2019-82631. The material for the hard coat layer 3b is not particularly limited, but an organosilicon compound may be used in the hard coat solution. The organosilicon compound is not particularly limited, and examples of the organosilicon compound that can be used include epoxy-based, acrylic-based, vinyl-based, and methacrylic-based silane coupling agents.

[0066] Alternatively, as described in <Specific Example 1> below, the main layer 3 may be composed of multiple layers. For example, if the ends of the glossy particles P sink into the primer layer 2 and cause unevenness (bumps) on the outermost surface due to the glossy particles P, the photochromic layer may be provided to fill the unevenness, or a layer without photochromic function may be provided as the smooth layer 3a. A hard coat layer 3b may then be provided to cover the photochromic layer or the smooth layer 3a. The raw material for this smooth layer 3a is not limited, and may be the same material as the raw material (hard coat solution) for the hard coat layer 3b. Alternatively, as described in <Specific Example 1> below, a raw material that does not contain the organic photochromic dye and its related substances may be used as the photochromic layer raw material. The raw material solution for the main layer 3 may be composed of multiple types of chemicals prepared separately. Examples of such chemicals include the raw material for the photochromic layer, the hard coat solution, and the raw material for the smooth layer 3a. The following examples use the raw material for the photochromic layer or the hard coat solution.

[0067] According to the above example, from the substrate 1 side toward the outermost surface, a primer layer 2, a glossy particle-containing layer 31 in which glossy particles P are present, and a cover layer 32 in which glossy particles P are not present and which is composed of the raw material liquid of the main layer 3 are arranged in that order.

[0068] Here, the layer in which the glossy particles P exist is referred to as the glossy particle-containing layer 31. The glossy particle-containing layer 31 is composed of the glossy particles P and the raw material liquid of the main layer 3. A cover layer 32 is provided so as to cover the glossy particle-containing layer 31. The cover layer 32 can be composed (almost) only of the raw material liquid of the main layer 3.

[0069] Of course, when the raw material liquid of the main layer 3 hardens, the glossy particles P may migrate to the outermost surface side, but only in very small amounts. For example, the glossy particle-containing layer 31 provided on the outer surface side 10a (inner surface side 10b) contains glossy particles P in an amount of 90% or more (preferably 95% or more, and more preferably 99% or more) of the glossy particles P in the film on the outer surface side 10a (inner surface side 10b). The glossy particle-containing layer 31 in this state is also referred to as a "glossy particle-containing layer 31 containing glossy particles P" (FIG. 3(d)). The glossy particles P contained in the cover layer 32 account for 10% or less (preferably 5% or less, and more preferably 1% or less) of the glossy particles P in the film.

[0070] The spectacle optical article 10 may be provided with a glossy particle-containing layer 31 in which the glossy particles P are contained within a layer having a thickness 1.5 times (preferably 1.3 times or 1.2 times) the maximum particle size of the glossy particles P. That is, in one embodiment of the present invention, when the spectacle optical article 10 is viewed in cross section, the glossy particles P are present in the spectacle optical article 10 in a state where they are aligned in a horizontal row approximately along the surface shape of the substrate outer surface 1a and / or substrate inner surface 1b on the side where the glossy particle-containing layer 31 is provided. The glossy particle-containing layer 31 is then covered with a cover layer 32 composed (almost) only of the raw material liquid of the main layer 3.

[0071] When the glossy particles P are concentrated in the peripheral portion when the eyeglass optical article 10 is viewed from the front, the glossy particles P are (almost) absent in the portion of the glossy particle-containing layer 31 through which the line of sight passes. Therefore, the portion of the glossy particle-containing layer 31 through which the line of sight passes is integrated with the cover layer 32 (for this reason, in each drawing of the present application, the boundary between the glossy particle-containing layer 31 and the cover layer 32 is depicted by a long dashed line). Even in this case, a layer having a thickness 1.5 times (preferably 1.3 times, and more preferably 1.2 times) the maximum particle size of the glossy particles P is referred to as the glossy particle-containing layer 31 containing the glossy particles P. It is preferable that the glossy particles P are concentrated in the peripheral portion of the glossy particle-containing layer 31 when viewed from the front.

[0072] As a specific embodiment of the glossy particle-containing layer 31, for example, a layer that has a thickness 1.5 times (preferably 1.3 times or 1.2 times) the maximum particle size of the glossy particles P in a cross-sectional view and is arranged at a position that accommodates the largest number of glossy particles P within the layer may be specified as the glossy particle-containing layer 31. When the ends of the glossy particles P are embedded in the primer layer 2, the glossy particle-containing layer 31 includes the outermost surface side of the primer layer 2 and also includes a smoothing layer 3a, a photochromic layer, or a hard coat layer 3b that fills in the irregularities (bumps) caused by the glossy particles P.

[0073] A layer provided so as to cover the glossy particle-containing layer 31 and composed (almost) only of the raw material liquid of the main layer 3 (i.e., a layer (almost) not containing glossy particles P and located closer to the substrate 1 than the antireflection layer 4 and protective layer 5 provided on the outermost surface side) may be specified as the cover layer 32. The cover layer 32 may consist of only the hard coat layer 3b, may consist of the hard coat layer 3b and the smooth layer 3a (or photochromic layer), or may consist of the smooth layer 3a (or photochromic layer).

[0074] The thickness of the main layer 3 may be 20 to 200 μm. The lower limit may be 30 μm. The upper limit may be 70 μm. The numerical ranges specified in this paragraph may be applied to the combined thickness of the primer layer 2 and the main layer 3.

[0075] The glossy particle-containing layer 31 is provided on the outer surface 10a and / or the inner surface 10b, but in order to enhance decorativeness and make it more noticeable to third parties, the glossy particle-containing layer 31 may be provided on at least the outer surface 10a or only the outer surface 10a. Each drawing in the present application illustrates the case where the glossy particle-containing layer 31 is provided only on the outer surface 10a.

[0076] An eyeglass optical article 10 according to one embodiment of the present invention may include a substrate 1 and an antireflection layer 4 provided so as to cover at least one of the substrate outer surface 1a and the substrate inner surface 1b. That is, the antireflection layer 4 may be provided on the outermost surface side as viewed from the glossy particles P, with the glossy particles P contained therein. As a specific example, the antireflection layer 4 may be provided on the outermost surface side of the glossy particle-containing layer 31 provided on the substrate outer surface 1a (and / or the substrate inner surface 1b). For example, the antireflection layer 4 may be provided in contact with the hard coat layer 3b (main layer 3). A protective layer 5 for protecting the antireflection layer 4 and the like may be provided on the outermost surfaces of the outer surface 10a and the inner surface 10b (see FIG. 2 and FIG. 3(d) for ease of explanation).

[0077] When the spectacle optical article 10 is a spectacle lens, the spectacle lens substrate 1 (lens substrate) is not particularly limited, and examples thereof include glass, styrene resins such as (meth)acrylic resins, polycarbonate resins, allyl resins, allyl carbonate resins such as diethylene glycol bisallyl carbonate resin (CR-39), vinyl resins, polyester resins, polyether resins, urethane resins obtained by reacting an isocyanate compound with a hydroxy compound such as diethylene glycol, thiourethane resins obtained by reacting an isocyanate compound with a polythiol compound, and transparent resins obtained by curing a polymerizable composition containing a (thio)epoxy compound having one or more disulfide bonds in the molecule. Inorganic glass can also be used.

[0078] The lens substrate may be either undyed (colorless lens) or dyed (dyed lens). The refractive index of the lens substrate is, for example, approximately 1.60 to 1.75. However, the refractive index of the lens substrate is not limited to this range and may be within the above range or may deviate above or below the range.

[0079] The average transmittance of the line-of-sight portion of the spectacle optical article 10 containing the above-mentioned glossy particles P may be defined separately for the case where the spectacle optical article 10 is the above-mentioned dyed lens and the case where it is not (i.e., the case where it is an undyed transparent lens). In this specification, the "transmittance" is a value obtained using a Hitachi spectrophotometer UH4150.

[0080] When the spectacle optical article 10 of one embodiment of the present invention is a tinted lens, in consideration of the visibility of the wearer, the average transmittance of the portion through which the line of sight passes is preferably 8% or more. When the spectacle optical article 10 of one embodiment of the present invention is a transparent lens, the average transmittance of the portion through which the line of sight passes is preferably 60% or more, and more preferably 75% or more.

[0081] A combination of a lens with the photochromic layer and the dyed lens may be used as an eyeglass optical article 10 according to one embodiment of the present invention. An example of this eyeglass optical article 10 is a gradiant dyed eyeglass lens. Gradiant dyeing is a dyeing method in which only the upper half of an eyeglass lens is dyed and the lower half is left undyed, or the dyeing density is changed between the upper and lower half.

[0082] The glossy particles P in one embodiment of the present invention may themselves be colored. These glossy particles P may be combined with the above-mentioned dyed lenses.

[0083] <Method of manufacturing eyeglass optical article 10> One embodiment of the present invention is a method for manufacturing an eyeglass optical article 10 having an outer surface 10a that faces the object side and an inner surface 10b that faces the eyeball side. The details described in <Eyeglass optical article 10> will be omitted below.

[0084] One embodiment of the present invention comprises: This is a method for manufacturing an eyeglass optical article 10 having an outer surface 10a that faces the object and an inner surface 10b that faces the eyeball, and in which glossy particles P with a particle size of 50 to 150 μm are contained between the outer surface 10a and the inner surface 10b.

[0085] It is preferable to include a step of applying a glossy particle-containing liquid so as to cover at least one of the outer surface 1a and the inner surface 1b of the substrate. The object to which the glossy particle-containing liquid is applied may be the substrate 1, or another layer provided directly on the substrate 1. There are no limitations on the glossy particle-containing liquid, and it may be a raw material liquid for the main layer 3, a raw material liquid for the photochromic layer, or a raw material liquid (hard coat liquid) for the hard coat layer 3b. Of course, the substrate 1 may also be produced by pouring a substrate raw material in which glossy particles P are dispersed into a mold and curing it.

[0086] The following are examples of embodiments other than the application of the glossy particle-containing liquid. a step of providing a primer layer 2 on a substrate 1 so as to cover at least one of a substrate outer surface 1a and a substrate inner surface 1b; A step of sprinkling glossy particles P onto the primer layer 2; a step of applying a raw material liquid for the main layer 3 so as to cover the glossy particles P; By sprinkling the glossy particles P, the glossy particles P can be unevenly distributed around the periphery of the eyeglass optical article 10 when the eyeglass optical article 10 is worn and viewed from the front.

[0087] The technical scope of the present invention is not limited to the above-described embodiments, but also includes various modifications and improvements within the scope of the specific effects that can be obtained by the constituent elements of the invention and their combinations.

[0088] Specific examples of eyeglass optical articles 10 according to one embodiment of the present invention will be described below. In the following examples, eyeglass lenses 10 were produced as an example of eyeglass optical articles 10. The present invention is not limited to the following examples.

[0089] In the following specific examples, the details of each material are as follows: The anti-reflection layer 4 and the protective layer 5 were not provided. Diameter of base material 1 in plan view: 60.00 mm · Shape of substrate 1: double-sided flat plate (plano) Base material 1 type: PC (polycarbonate) Refractive index of substrate 1: 1.589 Raw material solution for primer layer 2: Produced as follows. 50 parts by mass of NMP solvent was added to 20 parts by mass of Solution A (Optolake, manufactured by Catalysts and Chemicals Co., Ltd.). Next, 30 parts by mass of Solution B (ADEKA BONTITOR (registered trademark) HUX232, manufactured by ADEKA Corporation) was added dropwise and stirred for 1 hour to obtain a total of 100 parts by mass of a prepared solution. A surfactant was added to this prepared solution, and the mixture was stirred for 24 hours. The resulting solution was filtered through a 0.5 μm filter to obtain a primer composition (see the examples in JP 2009-67845 A for details). · Raw material solution for smooth layer 3a: Produced as follows. A radically polymerizable composition consisting of 20 parts by mass of trimethylolpropane trimethacrylate, 35 parts by mass of BPE oligomer (2,2-bis(4-methacryloyloxypolyethoxy,diphenyl)propane), 10 parts by mass of EB6A (polyester oligomer hexaacrylate), 10 parts by mass of polyethylene glycol diacrylate with an average molecular weight of 532, and 10 parts by mass of glycidyl methacrylate was prepared in a plastic container. To 100 parts by mass of this radical polymerizable composition, 5 parts by mass of a hindered phenol-based antioxidant (Irgacure 245 manufactured by BASF) and 0.6 parts by mass of an ultraviolet polymerization initiator CGI-1870 (manufactured by BASF) were added, and the mixture was thoroughly stirred and mixed. To the mixture, 6 parts by mass of γ-methacryloyloxypropyltrimethoxysilane (KBM503 manufactured by Shin-Etsu Chemical Co., Ltd.) was added dropwise with stirring (for details, see the examples in JP 2013-114162 A). Raw material solution for light-control layer: Produced as follows: The smooth layer 3a was prepared in the same manner as the raw material solution for the smooth layer 3a, except that 3 parts by mass of Chromene 1 (see [Chemical Formula 1] in JP 2013-114162 A) as a photochromic dye and 5 parts by mass of light stabilizer LS765 (bis(1,2,2,6,6-pentamethyl-4-piperidyl)sebacate, methyl(1,2,2,6,6-pentamethyl-4-piperidyl)sebacate) were added to 100 parts by mass of the radical polymerizable composition, and the mixture was thoroughly stirred and mixed (see the examples in JP 2013-114162 A for details). Raw material solution for hard coat layer 3b: Produced as follows. Compoceran SQ series (manufactured by Arakawa Chemical Industries, Ltd.), propylene glycol monomethyl ether acetate, methanol, CPI-210S (manufactured by San-Apro Co., Ltd.), and Y-7006 (manufactured by Dow Corning Toray Co., Ltd.) were mixed to a solids concentration of 60%, and a raw material solution for the hard coat layer 3b was produced (for details, see the examples in JP 2019-82631 A). Glossy particles P: Iriodin 100 Silver Pearl (particle size 10-60 μm) manufactured by Merck Performance Materials Surface on which each layer is formed: outer surface 1a of the substrate

[0090] <Example 1> FIG. 4 is a schematic cross-sectional view of <Specific Example 1>. A primer layer 2 raw material solution and glossy particles P were mixed to form a primer layer 2 on the outer surface 1a of the substrate. The film thickness of this primer layer 2 was set smaller than the maximum particle size of the glossy particles P. As a result, the glossy particles P were exposed from the outermost surface side of the primer layer 2. A smooth layer 3a raw material was applied to the outermost surface side of the primer layer 2 to form a 30 μm-thick smooth layer 3a, and the exposed glossy particles P were buried. A hard coat layer 3b raw material solution was applied to the smooth layer 3a to form the hard coat layer 3b. In this example, the glossy particle-containing layer 31 is composed of glossy particles P, the primer layer 2, and the smooth layer 3a, and the cover layer 32 is composed of the smooth layer 3a and the hard coat layer 3b.

[0091] <Example 2> A photochromic layer was formed instead of the smooth layer 3a in <Specific Example 1>. The rest was the same as in <Specific Example 1>. In this example, the glossy particle-containing layer 31 is composed of glossy particles P, a primer layer 2, and a photochromic layer, and the cover layer 32 is composed of the photochromic layer and a hard coat layer 3b.

[0092] <Example 3> In <Specific Example 1>, the smooth layer 3a was not provided, and the raw material for the hard coat layer 3b was applied to the outermost surface side of the primer layer 2 to provide the hard coat layer 3b and fill in the exposed glossy particles P. The rest was the same as in <Specific Example 1>. In this example, the glossy particle-containing layer 31 is composed of glossy particles P, the primer layer 2, and the hard coat layer 3b, and the cover layer 32 is composed of the hard coat layer 3b.

[0093] <Example 4> A raw material liquid for a primer layer 2 was applied to the outer surface 1a of the substrate to form a primer layer 2. Then, glossy particles P were sprinkled onto the primer layer 2. After that, a raw material for a smooth layer 3a was applied to the outermost surface side of the primer layer 2 where the glossy particles P were present, to form a 30 μm-thick smooth layer 3a and fill in the exposed glossy particles P. A raw material liquid for a hard coat layer 3b was applied to the smooth layer 3a to form the hard coat layer 3b. In this example, the glossy particle-containing layer 31 is composed of the primer layer 2 and the smooth layer 3a, and the cover layer 32 is composed of the smooth layer 3a and the hard coat layer 3b.

[0094] <Example 5> In <Specific Example 4>, a photochromic layer was formed instead of the smooth layer 3a. The rest was the same as in <Specific Example 4>. In this example, the glossy particle-containing layer 31 is composed of glossy particles P, a primer layer 2, and a photochromic layer, and the cover layer 32 is composed of the photochromic layer and a hard coat layer 3b.

[0095] <Example 6> In <Specific Example 4>, the smooth layer 3a was not provided, and the raw material for the hard coat layer 3b was applied to the outermost surface side of the primer layer 2, to provide the hard coat layer 3b and fill in the exposed glossy particles P. The rest was the same as in <Specific Example 4>. In this example, the glossy particle-containing layer 31 is composed of glossy particles P, the primer layer 2, and the hard coat layer 3b, and the cover layer 32 is composed of the hard coat layer 3b.

[0096] <Example 7> FIG. 5 is a schematic cross-sectional view of <Specific Example 7>. A raw material solution for a primer layer 2 was applied to the outer surface 1a of the substrate to form the primer layer 2. Then, the raw material solution for a hard coat layer 3b was mixed with glossy particles P to form a hard coat layer 3b on the primer layer 2. The film thickness of this hard coat layer 3b was set to be larger than the maximum particle size of the glossy particles P (film thickness ≦ 1.2 × maximum particle size). Therefore, the glossy particles P were not exposed from the outermost surface of the hard coat layer 3b. In this example, the glossy particle-containing layer 31 is composed of glossy particles P and the hard coat layer 3b, and the cover layer 32 is composed of the outermost surface of the hard coat layer 3b. Even if the glossy particles P were exposed from the outermost surface of the hard coat layer 3b, the glossy particles P could be embedded by providing an antireflection layer 4 (and a protective layer 5).

[0097] <Example 8> A raw material solution for a primer layer 2 was applied to the outer surface 1a of the substrate to form the primer layer 2. Then, the raw material solution for a smooth layer 3a was mixed with glossy particles P to form a smooth layer 3a on the primer layer 2. In this example, since the primer layer 2 was already smooth, the meaning of "smoothing" is less significant, but for convenience of explanation, it will be referred to as a smooth layer 3a. Then, a raw material solution for a hard coat layer 3b was applied to the smooth layer 3a to form the hard coat layer 3b. In this example, the glossy particle-containing layer 31 is composed of glossy particles P and at least the smooth layer 3a, and the cover layer 32 is composed of at least the hard coat layer 3b.

[0098] <Example 9> In <Specific Example 8>, a photochromic layer was formed instead of the smooth layer 3a. The rest was the same as in <Specific Example 8>. In this example, the glossy particle-containing layer 31 is composed of glossy particles P and at least the photochromic layer, and the cover layer 32 is composed of at least the hard coat layer 3b.

[0099] When using the smooth layer 3a or the photochromic layer, it is possible to bury the glossy particles P with multiple layers as in this example, even if the particle size of the glossy particles P is large. On the other hand, when the particle size of the glossy particles P is small, even if the hard coat layer 3b is formed by mixing the raw material solution of the hard coat layer 3b with the glossy particles P, the hard coat layer 3b is originally formed to have a sufficient thickness, so it is easy to contain the glossy particles P within the hard coat layer 3b (exposure of the glossy particles P can be suppressed). [Explanation of symbols]

[0100] 10...Optical articles for eyeglasses (eyeglass lenses) 10a...Outer surface (side) 10b...Inside (side) 1...Base material 1a…Base material outer surface 1b…Inner surface of base material 2...Primer layer 3…Main layer 31...Glossy particle-containing layer 32...Cover layer 3a...Smooth layer 3b...Hard coat layer 4…Anti-reflection layer 5…Protective layer P...Glossy particles

Claims

1. The lens has an outer surface facing the object and an inner surface facing the eyeball, and contains glossy particles having a particle size of 50 to 150 μm between the outer and inner surfaces. a film is provided on at least one of the outer surface side and the inner surface side, and the film contains the glossy particles; the film comprises a glossy particle-containing layer in which 90% or more of the glossy particles contained in the film are contained within a layer having a thickness 1.5 times the maximum particle size of the glossy particles; The optical article for eyeglasses, wherein the glossy particles are unevenly distributed in the glossy particle-containing layer toward the periphery when the optical article for eyeglasses is viewed from the front.

2. An eyeglass optical article as described in claim 1, comprising a cover layer arranged to cover the glossy particle-containing layer.

3. A substrate; an anti-reflection layer provided so as to cover at least one of an outer surface and an inner surface of the substrate; The eyeglass optical article according to claim 1 or 2, comprising:

4. A substrate; a primer layer provided so as to cover at least one of an outer surface and an inner surface of the substrate; a main layer provided so as to cover the primer layer; Equipped with The glossy particle-containing layer is composed of the glossy particles and at least one of the primer layer and the main layer, and a cover layer provided to cover the glossy particle-containing layer is composed of the main layer. The eyeglass optical article according to any one of claims 1 to 3.

5. An eyeglass optical article as described in claim 4, wherein the main layer includes at least one of a smooth layer, a photochromic layer, and a hard coat layer.

6. An eyeglass optical article as described in claim 4 or 5, wherein the thickness of the main layer is 20 to 200 μm.

7. An eyeglass optical article described in any one of claims 1 to 6, wherein the glossy particles are at least one of metal or metal oxide particles and particles constituting a pearlescent pigment.

8. An eyeglass optical article described in any one of claims 1 to 7, wherein the eyeglass optical article is a dyed lens and the average transmittance of the portion through which the line of sight passes is 8% or more.

9. An eyeglass optical article described in any one of claims 1 to 7, wherein the eyeglass optical article is a transparent lens and the average transmittance of the portion through which the line of sight passes is 60% or more.

10. The eyeglass optical article described in any one of claims 1 to 9, wherein the eyeglass optical article is an eyeglass lens, eyeglasses equipped with the eyeglass lens, sunglasses or goggles.

11. A method for manufacturing an eyeglass optical article having an outer surface that faces the object and an inner surface that faces the eyeball, the method comprising: incorporating glossy particles having a particle size of 50 to 150 μm between the outer surface and the inner surface; a step 1 of applying a primer layer material to a substrate so as to cover at least one of an outer surface and an inner surface of the substrate, and then, before hardening the applied material, sprinkling the glossy particles so as to be unevenly distributed in a portion that will become a peripheral portion when the eyeglass optical article is viewed from the front, and then hardening the material; Step 2: applying a raw material liquid for a main layer so as to cover the glossy particles and curing the applied raw material liquid; and A method for manufacturing an eyeglass optical article, wherein the film formed through steps 1 and 2 comprises a glossy particle-containing layer in which 90% or more of the glossy particles contained in the film are contained within a layer having a thickness 1.5 times the maximum particle size of the glossy particles.

12. A method for manufacturing an eyeglass optical article as described in Claim 11, comprising a step of applying a liquid containing glossy particles so as to cover at least one of the outer surface and inner surface of the substrate.

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