Abstract:
The present disclosure relates to an optical member comprising a plastic base, a hard coat layer disposed on the plastic base, and an antireflection film disposed on the hard coat layer, the antireflection film containing high refractive index layers and low refractive index layers that are alternately stacked, and the high refractive index layers and the low refractive index layers satisfying predetermined requirements.
Abstract:
An ophthalmic lens design method includes: acquiring first information about a purpose of an ophthalmic lens; acquiring second information about at least one of a visual line of a wearer for the purpose, a place, a use tool, and a body of the wearer; acquiring data indicating a number of first regions, positions, shapes, and sizes of a plurality of first regions set on a surface of the ophthalmic lens, and distances to a target viewed through the first regions; setting a variable numerical value among numerical values indicating the number of first regions, the positions, the shapes, and the sizes of the plurality of first regions, and the distances in the data and setting the plurality of first regions and the distances on the surface; and setting a target aberration distribution based on the plurality of first regions and the distances that have been set.
Abstract:
An optical member, having: a plastic base; and a hard coat layer produced from a hard coat layer-forming composition and disposed on the plastic base, wherein the hard coat layer-forming composition includes: metal oxide particles; a component X that is at least one selected from the group consisting of an organic silicon compound represented by a Formula (1): (RA-LA)n-Si—(X)4-n Formula (1); and a component Y that is at least one selected from the group consisting of an organic silicon compound represented by a Formula (2): (RB-LB)m-Si—(X)4-m Formula (2).
Abstract:
A manufacturing method of a spectacle lens provided with hidden markings includes: setting forming positions of the hidden markings to certain positions; changing the forming positions of the hidden markings based on at least one parameter obtained from spectacle lens product-related information that indicates information about a spectacle lens product, spectacle frame-related information that indicates information about a spectacle frame, prescription-related information that indicates information about a prescription for a wearer, and fitting-related information that indicates information about fitting for the wearer; and forming the changed hidden markings.
Abstract:
A lens design method includes: changing curve data including a curve value of a distance vision part and a curve value of a near vision part of a progressive power lens on an object side and a curve value of a distance vision part and a curve value of a near vision part of the progressive power lens on an eyeball side so as to be suited to prescription values to calculate a plurality of sets of the curve data; and calculating, for each of the calculated sets of the curve data, a thickness at a second position on the progressive power lens that satisfies thickness conditions for a first position on the progressive power lens.
Abstract:
An optical component is an optical component including: a plastic base; and a multilayer film disposed on at least a surface having a greater curvature, of a front surface of the plastic base and a rear surface of the plastic base, wherein the multilayer film has a maximum reflectivity of 3% to 50% in a wavelength range of 380 nm to 780 nm.
Abstract:
A progressive-power multifocal lens whose far-vision portion dioptric power is minus, which has, along a principal meridian curve, a far-vision correction portion, a near-vision correction portion, a progressive-power portion between the far-vision correction portion and the near-vision correction portion. Where a base curve is represented by BC; a mean surface refracting power at an arbitrary point on the progressive-power multifocal surface, located at a distance of x (mm) from a far-vision portion eyepoint in the horizontal direction in wear of spectacles and located at a distance of y (mm) from the far-vision portion eyepoint in the vertical direction in wear of spectacles, by P (x,y) (diopter); and a mean surface additional refracting power obtained by subtracting the base curve BC from the mean surface refracting power, by DELTAP(x,y){=P(x,y)-BC} (diopter);the lens fulfills the condition ofin a region which satisfies 15
Abstract:
An object of the present invention is to provide a laminate which has a substrate, an intermediate layer, and a water-repellent layer laminated in this order, and has excellent abrasion resistance. The present invention is a laminate comprising: a substrate (s) having an anti-reflection layer; an intermediate layer (c) placed on the anti-reflection layer side of the substrate; and a water-repellent layer (r), in this order, wherein the intermediate layer (c) is a cured layer of a mixture composition (cc) of an organosilicon compound (C), or a vapor deposition layer of the organosilicon compound (C), the organosilicon compound (C) contains a silicon atom together with an amino group and/or an amine skeleton, the water-repellent layer (r) is a cured layer of a mixture composition (ca) of an organosilicon compound (A) in which a monovalent group having a perfluoropolyether structure is bound to a silicon atom through a linking group or without a linking group located therebetween, and a hydrolyzable group is bound to the silicon atom through a linking group or without a linking group located therebetween, and the laminate satisfies the following requirement (1),
(1) a water sliding angle is not larger than 50° after a abrasion resistance test in which a 200 g load per 1.5 cm×1.5 cm area is applied to a surface on the water-repellent layer (r) side of the laminate and the surface is rubbed 20,000 times.
Abstract:
An object of the present invention is to provide a laminate which has a substrate, an intermediate layer, and a water-repellent layer laminated in this order, and has excellent abrasion resistance. The present invention is a laminate comprising: a substrate (s) having an anti-reflection layer; an intermediate layer (c) placed on the anti-reflection layer side of the substrate; and a water-repellent layer (r), in this order, wherein the intermediate layer (c) is a cured layer of a mixture composition (cc) of an organosilicon compound (C), or a vapor deposition layer of the organosilicon compound (C), the organosilicon compound (C) contains a silicon atom together with an amino group and/or an amine skeleton, the water-repellent layer (r) is a cured layer of a mixture composition (ca) of an organosilicon compound (A) in which a monovalent group having a perfluoropolyether structure is bound to a silicon atom through a linking group or without a linking group located therebetween, and a hydrolyzable group is bound to the silicon atom through a linking group or without a linking group located therebetween, and the laminate satisfies the following requirement (1), (1) a water sliding angle is not larger than 50° after a abrasion resistance test in which a 200 g load per 1.5 cm×1.5 cm area is applied to a surface on the water-repellent layer (r) side of the laminate and the surface is rubbed 20,000 times.
Abstract:
The present invention provides a composition for forming a hard coat layer, which is capable of forming a hard coat layer that exhibits excellent adhesion to an adjacent layer, while having excellent hardness. A composition for forming a hard coat layer according to the present invention contains: a (meth)acrylate which has at least one group that is selected from the group consisting of a phosphoric acid group and a sulfonic acid group; a silsequioxane which has a radically polymerizable group; and metal oxide particles.