Abstract: One aspect of the present invention relates to an optical article comprising: an optical substrate; a hard coat layer provided directly, or over another layer(s), on the optical substrate; an antireflective layer provided on the hard coat layer; and an antifouling layer provided on the antireflective layer; such that when a friction and wear test is conducted on the surface of the antifouling layer under conditions of a scratching rate of 0.1 mm/s and a load increase rate of 0.15 gf/s with a diamond stylus having a tip diameter of 0.03 mm, the load at which the antireflective layer begins to peel off is greater than 50 gf.

Abstract: An aspect of the present invention relates to an optical article, which comprises a plastic substrate, and a hard coat layer directly, or through another layer, on a surface of the plastic substrate, wherein the hard coat layer comprises a filler component comprising chain-like inorganic oxide microparticles, and in the hard coat layer, a content of the chain-like inorganic oxide microparticles is equal to or greater than 15 mass percent and a content of the filler component ranges from greater than 20 mass percent to less than 40 mass percent, and a layer thickness of the hard coat layer is equal to or greater than 8 ?m but equal to or less than 15 ?m.

Abstract: An aspect of the present invention relates to a method of manufacturing an eyeglass lens comprising a coating layer on a lens substrate, which comprises forming the coating layer by coating a coating liquid by an ink-jet method on the lens substrate, with the coating liquid which is a water-based coating liquid comprising a solvent having a boiling point of equal to or higher than 200° C. but lower than 290° C., a water-dispersible polyurethane resin, and a surfactant.

Abstract: To provide an optical member, formed without generating cracks in a hard coat layer of desired film thickness, and a method of manufacturing an optical member that permits the manufacturing of the above optical member.

Abstract: A progressive-lens designing system includes a manufacturer-side terminal installed in a lens manufacturer connected to a shop-side terminal installed in a spectacle shop or any other location via a network. The manufacturer-side terminal includes an optimization coefficient setting section that uses a variety of data received from the shop-side terminal to set an optimization coefficient for each target object in specific work, a dioptric power computing section that computes target dioptric power for each target object, a lens designing section that performs lens design, and an order processing section that performs order processing when receiving an order placed from the shop-side terminal.

Abstract: A progressive power lens 10 for spectacles has a distance portion 11 and a near portion 12 of different powers. A surface power OMHP in a horizontal direction on an object-side surface along a principal meridian 14 or a vertical reference line passing through a fitting point Pe, a surface power OMVP(y) in a vertical direction of the object-side surface, the absolute value IMHP of a surface power on an eye-side surface, and the absolute value IMVP of a surface power in a vertical direction on the eye-side surface satisfy the following condition. OMHP(y)>OMVP(y) IMHP(y)>IMVP(y) OMHP(y)?OMVP(y)=IMHP(y)?IMVP(y) In the conditions, y is a coordinate along the principal meridian or the vertical reference line.

Abstract: A progressive-power lens has one surface which satisfies the following expressions CY(DP)=CT(DP) CY(P)>CT(P) where CT(DP) denotes a vertical direction curvature at the distance reference point, CY(DP) denotes a horizontal direction curvature, CY(P) denotes a horizontal direction curvature at a point on the principal meridian which is located further on the near portion than the progressive start point, and CT(P) denotes a vertical direction curvature at the point.

Abstract: To provide an optical member in which a patterned shape is visible when viewed from a prescribed angle without impeding the field of vision of the wearer, and a method of manufacturing an optical member permitting the manufacturing of such an optical member. The optical member of the present invention is characterized by comprising a lens substrate 2, a patterning layer 3 in which a prescribed shape has been patterned in a manner covering a portion of the lens substrate, and a hard coat layer 4 formed so as to cover the lens substrate and the patterning layer, and in that a refractive index of the lens substrate 2 is equal to a refractive index of the hard coat layer 4, and differs from a refractive index of the patterning layer 3 by equal to or more than 0.02.

Abstract: There is provided a data server capable of improving a quality of a spectacle lens as a finished product and reducing a cost, even if a semi-finished lens having a complicated shape is used, the data server including: a specification data acquisition unit configured to acquire specification data of a semi-finished lens transmitted from a first terminal; a specification data storage unit configured to store the specification data acquired by the specification data acquisition unit; and a specification data output unit configured to output the specification data stored in the specification data storage unit, to a second terminal.

Abstract: The invention relates to a method of manufacturing a polarizing lens, including conducting curved surface processing to change a shape of a polarizing film into a shape of a curved surface, conducting heat treatment by heating polarizing film that has been processed into a curved surface to a heating temperature of equal to or higher than 105° C. but less than 150° C., assembling an upper mold, a lower mold, and a seal member to provide a casting mold having a cavity within which the polarizing film following heating treatment is positioned, upper and lower molds being positioned opposite each other to sandwich the polarizing film at a space therebetween, and seal member sealing space between the upper and lower molds, casting a curable composition into the cavity, curing curable composition to provide a polarizing lens within which a polarizing film is positioned, and separating polarizing lens thus provided from casting mold.

Abstract: A progressive-power spectacle lens design method, the progressive-power spectacle lens including a distance portion, a near portion, and a progressive portion provided between the distance portion and the near portion, the method comprising: decreasing a distance along a principal meridian from a fitting point to a progression start point and increasing a length of a progressive corridor defined by the progression start point and a progression end point when addition power is large, whereas increasing the distance along the principal meridian from the fitting point to the progression start point and decreasing the length of the progressive corridor when the addition power is small, wherein the distance from the fitting point to the progression end point is fixed irrespective of the addition power.

Abstract: Spectacle lenses that allow a wearer to view an object in a more comfortable manner include a pair of lenses for the left and right eyes. The power of one of the pair of lenses is shifted toward the positive side with respect to the power of the other lens, and object-side average surface power (base curve) of the one lens is smaller than object-side average surface power (base curve) of the other lens. The power (dioptric power) is principal meridian power along a principal meridian of each of the lenses, and the base curve is in the direction along the principal meridian.

Abstract: The optical article includes an optical substrate comprising a concave surface with a radius of curvature of equal to or greater than 350 mm on one side and a convex surface with a radius of curvature of equal to or greater than 120 mm on the other side, a first antifouling layer directly or through at least one additional layer on the concave surface, and a second antifouling layer directly or through at least one additional layer on the convex surface, and satisfies the conditions below: 0.01??L1?0.12 0.1??L2 ?L1<?L2 wherein ?L1 denotes a coefficient of static friction of a surface of the first antifouling layer, and ?L2 denotes a coefficient of static friction of a surface of the second antifouling layer.

Abstract: An optical article comprising: an optical base material; and a translucent layer that contains TiOx (0<x?2), the translucent layer is formed on the optical base material either directly or via some other layer, and the translucent layer has an argon concentration higher on a surface side of the translucent layer than on an optical base material side of the translucent layer.

Abstract: A method for producing an optical article includes laminating on a plastic substrate a first layer using a first composition. The first composition includes a first polyurethane resin containing an aromatic ring, a second polyurethane resin containing a carbonate backbone, metal oxide particulates, and an organosilicon compound.

Abstract: A progressive-power lens includes an eyeball-side surface including a distance portion and a near portion having different values of dioptric power. An intermediate portion connects the distance portion and the near portion to each other. An object-side surface of the progressive-power lens includes a first region extending along a principal meridian and having a spherical shape having first curvature, a second region facing the distance portion and having a spherical shape having second curvature equal to the first curvature, and a third region located outside the first region and below the second region and having third curvature greater than the first curvature.

Abstract: A progressive-power lens having an eyeball-side surface including a distance portion and a near portion having different values of dioptric power and an intermediate portion that connects the distance portion and the near portion to each other, and an object-side surface including a spherical first region having a first curvature and extending along a principal meridian, a spherical second region having a second curvature equal to the first curvature and facing the distance portion, and a third region located outside the first region and below the second region and having a third curvature smaller than the first curvature.

Abstract: A spectacle lens includes a first region which is located in at least part of a portion of a lens where a pivotal angle of an eyeball of a wearer ranges from 20 to 60 degrees and in which correcting astigmatism has priority over correcting average power based on prescribed power, and a second region which is formed inside the first region and in which correcting the average power has priority over correcting the astigmatism.

Abstract: An eye-side refractive surface 11 of a distance portion is concave and at least part of an eye-side refractive surface 3 of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.

Abstract: A progressive power lens 10 for spectacles has a distance portion 11 and a near portion 12 of different powers. A surface power OMHP in a horizontal direction on an object-side surface along a principal meridian 14 or a vertical reference line passing through a fitting point Pe, a surface power OMVP(y) in a vertical direction of the object-side surface, the absolute value IMHP of a surface power on an eye-side surface, and the absolute value IMVP of a surface power in a vertical direction on the eye-side surface satisfy the following condition. OMHP(y)>OMVP(y) IMHP(y)>IMVP(y) OMHP(y)?OMVP(y)=IMHP(y)?IMVP(y) In the conditions, y is a coordinate along the principal meridian or the vertical reference line.