Abstract: A lens positioning mechanism includes: a member holding unit that has a function of holding a second surface of a 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 regulates edge positions of a plurality of portions on the first surface of the lens member biased by the member holding unit to position the lens member in a predetermined attitude.

Abstract: An electronic dimming lens acquired by combining an electronic element for dimming and a lens, the electronic dimming lens including: holes that open on an outer face of the electronic dimming lens and are connected to electrodes for a positive electrode and a negative electrode in the electronic element; and terminal members that are molded to match a shape of the holes and are inserted into the holes, in which the terminal member is electrically connected to the electrodes inside of the hole and has one end part exposed to an opening of the hole. In accordance with this, reliability, durability, and producibility of terminals connected to electrodes of the electronic element for dimming can be configured to be superior.

Abstract: A spectacle optical article and a technology related thereto, the spectacle optical article including an outer surface that is a surface on the object side and an inner surface that is a surface on the eyeball side, and containing glossy particles with particle diameters of 50 to 150 ?m between both the surfaces.

Abstract: A spectacle lens including an antifouling layer which is a condensate of an antifouling agent composition containing: 10 to 70 mass % of a compound (A) having a silyl group and a fluorinated alkyl group; and 30 to 90 mass % of a compound (B) having a silyl group at one end, a reactive group at the other end, and a polysiloxane chain structure.

Abstract: A spectacle lens including an antifouling layer which is a condensate of an antifouling agent composition containing: a compound (A) having a silyl group and a fluorinated alkyl group; a compound (B) having a silyl group at one end and a reactive group at the other end; and a chain fluorine compound (C) having no reactive group.

Abstract: A method for producing a spectacle lens from a lens material and includes: a marking step of marking an identification mark for identifying the spectacle lens, and a processing information mark which is used to process a lens blank and includes a tray identification 2D code, a tray identification code, a shape line and a position mark by forming a hole or a groove in a convex surface of the lens material by laser; and a concave surface machining processing step of reading the processing information mark, and machining a concave surface of the lens blank based on the read processing information mark.

Abstract: A progressive addition lens and the related technology, the progressive addition lens including a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion between the near portion and the distance portion and having a progressive refraction function, in which the transmission astigmatism is added to the near portion and the intermediate portion of the distance portion, the near portion, and the intermediate portion, and in the near portion and the intermediate portion to which the transmission astigmatism is added, the progressive addition lens further includes a portion where an amount of horizontal refractive power is greater than an amount of vertical refractive power after subtracting the refractive power for astigmatism correction.

Abstract: A polymerizable composition for optical components, which can prevent striae while keeping strength for optical components when a thick optical component is produced. A polymerizable composition for optical components is a mixture of a first composition including a polyisocyanate compound (A) and a second composition including a polythiol compound (B1) and a thiol group-containing substance (B2), the composition includes the thiol group-containing substance (B2) showing peak at a position at retention time three minutes or more from a peak of the polythiol compound (B1) in a chromatogram obtained by analyzing the composition by high performance liquid chromatography (HPLC) analysis, and the ratio (A/B1) is 80/100 to 95/100, wherein the equivalent ratio (A/B1) is an equivalent A of the polyisocyanate compound (A) using a weight and group number of the polyisocyanate compound (A) to B1 of the polythiol compound (B1) using a weight and group number of the polythiol compound (B1).

Abstract: There is provided a spectacle lens including a lens substrate, an inorganic layer, and a water-repellent layer in the stated order, and further including a metal-containing layer between the inorganic layer and the water-repellent layer, wherein a metal contained in the metal-containing layer is silver, and one or more metals selected from the group consisting of platinum, gold, palladium, mercury, cadmium, cobalt, nickel, copper, zinc, and titanium.

Abstract: A method for polishing a spectacle lens including a step of preparing a polishing pad provided with a flocking polishing sheet having a flocking part and abrasive grains that are attached to a surface of the flocking part on a polishing surface that comes into contact with a surface to be polished of a resin spectacle lens and a step of polishing the surface to be polished by bringing the surface to be polished into contact with the polishing surface by applying pressure and relatively moving the polishing pad and the spectacle lens while supplying a coolant to the polishing surface.

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: A design system of a progressive addition lens including a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion provided between the near portion and the distance portion and having a progressive refraction function, the design system of a progressive addition lens includes an aberration amount setting unit that sets an amount of transmission astigmatism ??[D] added to a progressive addition lens in such a way that when a wearer of the progressive addition lens ? to which transmission astigmatism of an aberration amount ??[D] is added is provided with the progressive addition lens ? having different parameters, visual performance when the progressive addition lens ? is worn approaches visual performance when the progressive addition lens ? is worn.

Abstract: Provided is technology that makes it possible to design a progressive power lens appropriate for visual behavior of a subject. A method for designing a progressive power lens includes: a step (a) of determining a relationship between a line-of-sight passage position on a surface of a progressive power lens through which a line of sight of a subject wearing the progressive power lens passes and a reactive accommodation amount that the subject exhibits when the line of sight passes through the line-of-sight passage position, based on visual behavior of the subject; a step (b) of judging whether or not the reactive accommodation amount is within an appropriate range; a step (c) of determining a correction method for correcting the progressive power lens based on a result of judgement made in the step (b); and a step (d) of correcting a design of the progressive power lens based on the correction method determined in the step (c).

Abstract: There is provided a spectacle lens and a related technique thereof, including: center clear areas, functional areas, and outer clear areas, wherein in planar view, the functional area falls within a circle centered on an eye point and having a diameter that is any one value of 15.00 to 25.00 mm.

Abstract: A spectacle lens, including: a central clear area that is an area including an eye point and allows a light beam entering from an object-side surface to exit from an eyeball-side surface, enter into a wearer's pupil, and converge on a retina; and a functional area that is an annular area surrounding the central clear area.

Abstract: A monomer for an optical component includes: a compound represented by the formula (1), in which a pH obtained through a pH measurement method below is 4.0 to 7.5. (pH Measurement Method) 80 g of a sample, 80 mL of toluene, and 250 mL of water are mixed together in a liquid separation funnel, an aqueous phase is separated off, and the pH of the aqueous phase is measured.

Abstract: There are provided indeno-fused naphthopyran compound particles having a degree of crystallization of 60.00% or more and a maximum melting rate of 25% or less at a temperature of 200° C. or lower in a melting curve.

Abstract: A spectacle lens, including: a base region; and a plurality of defocus regions surrounded by the base region.

Abstract: A progressive addition lens includes: a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion between the near portion and the distance portion and having a progressive refraction function. A transmission astigmatism is added to at least the near portion and the intermediate portion, and in the near portion and the intermediate portion to which the transmission astigmatism is added, after subtracting the refractive power for astigmatism correction, the progressive addition lens further includes a portion where the amount of vertical refractive power is greater than the amount of horizontal refractive power.

Abstract: Provided is a method for evaluating an eyeglass lens that has a plurality of convex portions on at least one of an object-side surface and an eyeball-side surface, in which the eyeglass lens is evaluated based on the number of rays at a plurality of focal positions A at which rays, which pave passed through the plurality of convex portions in a predetermined evaluation region of the eyeglass lens, converge when ray tracing is performed on the predetermined evaluation region, and technology related thereto.