Abstract: A spectacle lens according to the first embodiment of the present disclosure includes: a lens body; and a contrast adjustment section provided on or in the lens body and including a dot-portion group in which dot portions are arranged, wherein the arrangement of the dot portions is non-uniform. A spectacle lens according to the second embodiment of the present disclosure includes: a lens body; and a contrast adjustment section provided on or in the lens body and including a dot-portion group in which dot portions are arranged, wherein the dot-portion group includes dot portions each having an aspect ratio, which is the ratio of the length in the short-axis direction to the length in the long-axis direction in the plan-view shape, of less than 1.

Abstract: With regard to an eyeglass lens that is provided with a plurality of defocus regions on at least one of an object-side surface and an eyeball-side surface, the surface shape is evaluated through measuring the surface shape of the surface of the eyeglass lens that has the plurality of defocus regions, and acquiring three-dimensional data regarding the surface shape; a classifying data groups regarding the plurality of respective defocus regions and a data group regarding a base region, which is a region where the defocus regions are not formed, by performing cluster analysis on the three-dimensional data; combining curved surface shape data obtained by performing curve fitting on each of the classified data groups, and extracting reference shape data regarding the object-side surface; and comparing the three-dimensional data and the reference shape data, and obtaining degrees of deviation of the three-dimensional data from the reference shape data.

Abstract: A technique capable of easily and highly accurately perform positioning of a lens member having a convex optical surface. A lens positioning mechanism is configured to include: a member holding unit that has a function of holding a lens member via an auxiliary tool attached to a second surface of the lens member having a first surface, which is a convex optical surface, and the second surface, which is an optical surface facing the first surface, and biasing the held lens member toward a side of the first surface; and an attitude control unit that abuts on a predetermined portion on the first surface of the lens member biased on the member holding unit to regulate a position of the predetermined portion and positions the lens member in a predetermined attitude.

Abstract: There is provided a method of producing a spectacle lens, wherein the spectacle lens has a water-repellent layer, and the method including film-forming the water-repellent layer by a heat deposition method and heating a plurality of deposition sources according to different temperature profiles in the film-forming by the heat deposition method, wherein, in the plurality of deposition sources, at least one deposition source contains a water-repellent component and at least one deposition source contains a metal component.

Abstract: A photochromic composition containing one or more compounds represented by General Formula A and one or more compounds represented by General Formula B. In General Formula A, R1, R2, B1, and B2 each independently represent a hydrogen atom or a substituent, and R3 to R6 each independently represent a hydrogen atom or an electron-withdrawing group, provided that one or more of R3 to R6 represent an electron-withdrawing group. In General Formula B, R7 to R12, B3, and B4 each independently represent a hydrogen atom or a substituent, and R13 and R14 each independently represent a hydrogen atom or an electron-donating group, provided that one or more of R13 and R14 represent an electron-donating group.

Abstract: A semifinished lens is configured with at least three marks for specifying the center position of a frame shape. When the semifinished lens is viewed in an optical axis direction, the at least three marks include a pair of marks located on a first straight line passing through the center position and a mark located on a second straight line that is orthogonal to the first straight line and passes through the center position.

Abstract: Provided are a method with which a spectacle lens molding mold having a minute recess can be made with high accuracy, and the like. A method for producing a molding mold 12 for molding a spectacle lens 1 in which a minute protrusion 6 is formed on at least one surface thereof includes a first molding mold preparation step of preparing a first mold 14 that includes a base material 26 and a coating portion 28, the coating portion being made of a nickel alloy, coating the base material, and having a surface formed into a shape corresponding to the shape of one surface of the spectacle lens; and a cutting step of cutting a recess 28A corresponding to the protrusion into the surface of the coating portion of the first mold.

Abstract: A lens, system for designing, computer program for designing and a method for designing, with a computer, a progressive addition lens including a distance vision region, a near vision region, and an intermediate vision region, wherein a power gradually changes between the distance vision region and the near vision region, and wherein the progressive addition lens is based on prescription data, the method including: determining a transmission astigmatic performance parameter corresponding to a sum of a prescribed astigmatism included in the prescription data and of a predetermined amount of extra astigmatism; determining lens surface data corresponding to the determined transmission performance parameter.

Abstract: Provided is an eyeglass lens 1 configured to cause rays that have entered from an object-side surface 3 to be emitted from an eyeball-side surface 4, and cause the emitted rays to converge at a predetermined position A. The eyeglass lens 1 includes a lens base material 2 having a plurality of base material convex portions 6 on at least one of the object-side surface 3 and the eyeball-side surface 4, and a coating film covering the surface provided with the base material convex portions 6. The shape of convex portions present on the outermost surface of the eyeglass lens located on a side on which the base material convex portions 6 are provided is an approximate shape of the base material convex portions configured to cause rays that have entered the eyeglass lens 1 to converge at a position B that is closer to the object than the predetermined position A is.

Abstract: A method of processing a spectacle lens that has an electronic element overlapping an optical element and supplies electric energy to the electronic element through a terminal portion to produce a dimming effect, the method including: acquiring inner dimension information of a retaining portion of a frame, the retaining portion sandwiching and retaining a periphery of the spectacle lens between a front and a rear; acquiring thickness information of the periphery of the spectacle lens processed into an external shape corresponding to the frame; determining an interference area of the periphery of the spectacle lens; and performing thickness adjustment processing for removing the interference area, on a surface on the other side of the spectacle lens opposite to the surface on the one side of the spectacle lens. This configuration enables easy assembly of a spectacle lens to a frame without being restricted by the thickness of a lens periphery.

Abstract: A method for manufacturing an electronic light-modulating device that obtains a light-modulating effect by supplying electrical energy to an electronic element overlapping an optical element includes: forming a laminate in which a pair of electrode layers and a light-modulating layer between the pair of electrode layers are laminated; and setting, in the laminate, an overlapping region having a shape overlapping the optical element in a formation region of the light-modulating layer, setting two or more terminal regions which are continuous to an outer side of the overlapping region and in which one and the other of the pair of electrode layers are independently present, and cutting a portion including the overlapping region and the terminal regions from the laminate to form the electronic element. As a result, production efficiency is improved.

Abstract: The spectacle lens has at least a lens base material, and a multilayer film positioned on an eyeball-side surface of the lens base material, in which an average reflectance Rm (280-380) in a wavelength region of 280 to 380 nm, measured on the eyeball-side surface of the spectacle lens, is 10.0% or less, and a chroma C*, measured on the eyeball-side surface of the spectacle lens under a CIE standard illuminant D65, is 0.5 or more but 5.0 or less.

Abstract: Provided are a photochromic compound represented by General Formula 1, and the like. In General Formula 1, R100 to R111, and X1 and X2 each independently represent a hydrogen atom or a substituent, and two or more substituents may be bonded to form a ring structure.

Abstract: Provided is a method for producing a spectacle lens including a metal-containing layer, comprising: irradiating, with an electron beam by electron-beam vapor deposition, a vapor deposition source having metal particles supported on a carrier to form the metal-containing layer.

Abstract: The photochromic compound is represented by the following general formula (1): wherein, X denotes an oxygen atom or a nitrogen atom unsubstituted or substituted by a substituent selected from the following Y1 group: Y1 group: —R1, -A1(B1)l(A2)m(B2)nR2, -A3A4, -A5R3 R1 denotes a cyano group or the like, R2 denotes an alkyl group or the like, R3 denotes a halogen atom or the like, A1, A2, A3, and A5 each independently denote an alkylene group or the like, A4 denotes a naphthyl group which may be substituted, B1 and B2 each independently denote any one of the divalent groups selected from the following group: l, m, and n are each independently 0 or 1, provided that n is 0 if m is 0, Y2 denotes a hydrogen atom or the like, R denotes a hydrogen atom or the like, denotes a norbornylidene group or the like.

Abstract: An electrochromic element suppresses reflection at an interface between an electrode layer and a substrate and does not impair a wearing feeling and the like, and a spectacle lens using the electrochromic element. An electrochromic element includes a substrate and an electrochromic film disposed to be superimposed on the substrate, the electrochromic film includes an electrode layer and an electrochromic layer, and a luminous reflectance of an interface between the electrode layer and the substrate side is 1.0% or less. It is preferable that the electrode layer be a transparent electrode layer made of ITO, and a luminous reflectance of an interface between ITO and the substrate side be 1.0% or less.

Abstract: Provided is a spectacle lens including multilayer films on both surfaces of a lens substrate, in which the sum of mean reflectances on both surfaces of the spectacle lens in a wavelength band of 400 to 440 nm is 20.0% or more, the reflectance on each surface of the spectacle lens has at least one maximum value in the wavelength band, and there is a difference between the mean reflectance on one surface of the spectacle lens and the mean reflectance on the other surface in the wavelength band.

Abstract: A method for producing a polymerizable composition, the method including: step (1) of preparing composition A having a water content of 200 ppm by mass or less, the composition A including a polyisocyanate component but not including a polymerization catalyst; step (2) of preparing composition B having a water content of 1,000 ppm by mass or less, the composition B including a polythiol component; and step (3) of mixing the composition A and the composition B and obtaining a polymerizable composition, and also a method for producing an optical component, the method including: a step of injecting the above-mentioned polymerizable composition into a molding die; and a step of polymerizing the polymerizable composition.

Abstract: Provided are a method for manufacturing an eyeglass lens that includes a lens substrate having a plurality of substrate protruding portions that protrude from a substrate base portion on a surface of the lens substrate and a coating film provided so as to cover the plurality of substrate protruding portions, the outermost surface of the eyeglass lens having a plurality of convex portions and concave portions, the method including forming the coating film by immersing the lens substrate in a coating film liquid, pulling up the lens substrate, and drying the coating film liquid on the lens substrate while or after the coating film liquid flows under its own weight, and technology related thereto.

Abstract: Provided are [1] a coating composition containing inorganic oxide particles (A), an epoxy compound (b1) having an organosilane moiety, a polyglycerol polyglycidyl ether (b2) having three or more epoxy groups, and a photocationic polymerization initiator (C), [2] a spectacle lens including a hard coat layer obtainable by curing the coating composition described in [1] above and a substrate, and [3] a method for producing a spectacle lens, including a step of applying the coating composition described in [1] above onto a substrate and a step of curing the applied coating composition by irradiation with light.