Abstract: An eyeglass lens with a functional region, wherein the functional region includes: a base region that causes a luminous flux that has entered an object-side face to exit from an eyeball-side face, enter a pupil of a wearer, and converge on a retina; and retinal non-convergence regions that cause a luminous flux that has entered the object-side face to exit from the eyeball-side face, and do not cause a luminous flux that has entered the pupil of the wearer to converge on the retina, at least some of the retinal non-convergence regions are buffer regions that can compensate local negative astigmatism occurring due to spherical aberration of the eye at some positions of a distribution of the astigmatism, and surfaces of the buffer regions are toric surfaces whose axial direction is a circumferential direction, and are elongated along the circumferential direction in a plan view.

Abstract: Provided are a spectacle lens and a technique associated therewith, the spectacle lens including: an object-side surface and an eyeball-side surface; a first refractive region having a first refractive power based on a prescription for correcting a refractive error of an eye; and a second refractive region having a refractive power different from the first refractive power, the second refractive region having a function of forming a focal point at a position other than a retina of the eye so as to suppress progression of the refractive error of the eye, wherein an interface portion is disposed inside the spectacle lens, the interface portion includes a base portion, and convex portions protruding from the base portion, or concave portions recessed from the base portion, the function of the second refractive region is exerted by using mutually different respective refractive indexes of two types of members sandwiching the interface portion therebetween, and the convex portions or the concave portions, and an o

Abstract: A spectacle lens and related techniques, the spectacle lens having an object-side surface and an eyeball-side surface and including a light guide member, a first lens element that is adjacent to the light guide member on an object side, and a second lens element that is adjacent to the light guide member on an eyeball side, in which, when a light beam that passes through the first lens element and the second lens element forms an image to obtain an image of reality, a wearer's prescription values are realized with the first lens element and the second lens element, a virtual image that is obtained by formation of an image with a light beam that travels in the light guide member and passes through the second lens element is displayed by the second lens element away from the wearer by a predetermined one distance.

Abstract: A lens frame includes a lens holding member having one pair of lens housings holding lenses and one pair of temple members, and the temple member includes each front temple part supporting the lens holding member, a rear temple part connected to a rear side of the front temple part, and an angle adjustable connection part that is able to adjust an angle of the front temple part with respect to the rear temple part using a rotation center portion as a center, and the front temple part has a length adjusting mechanism that is able to adjust a length of the front temple part.

Abstract: A refractive property measurement apparatus to measure refractive properties of an eye includes: a disk provided with a first pinhole and a second pinhole that transmit light rays while narrowing them; a light emitting unit that emits a first light ray and a second light ray from different positions on a surface of the disk, so that light rays passed through the first pinhole and the second pinhole enter the eye; and a processing unit determines refractive properties of the eye from information of positions on a retina of the eye where the first light ray having passed through the first pinhole and the second light ray having passed through the second pinhole reach. The first pinhole includes a first optical element that transmits the first light ray, and the second pinhole includes a second optical element that has transmission characteristics of transmitting the second light ray.

Abstract: The present invention provides an eyeglass lens and its related techniques, the eyeglass lens including: a base region that causes a light flux that has entered from an object-side face to exit from an eyeball-side face, and to enter an eye and converge at a position A on a retina; and a plurality of defocus regions that are in contact with the base region, wherein the defocus regions each include a first portion and a second portion, a refractive power of the first portion is within ±0.12 D of the refractive power of the base region, and a light flux that passes through the second portion of the defocus region is incident on the position A as diverging light.

Abstract: Provided are an ophthalmic lens and a technique related thereto, the ophthalmic lens including two lens elements 1 and 2 having powers with different signs, in which when the Abbe number (e-line reference) of the lens element 1 having a power with a smaller absolute value is ?e1, and the Abbe number (e-line reference) of the other lens element 2 is ?e2, Formula 1 below is satisfied, and ?e1<?e2??(Formula 1) when a partial dispersion ratio PgF?1 between the g-line and F?-line in the lens element 1 having the power with the smaller absolute value, and a partial dispersion ratio PgF?2 between the g-line and F?-line in the other lens element 2 are set, the following Formula 2 is satisfied. PgF?1>PgF?2??(Formula 2).

Abstract: A photochromic compound represented by General Formula 1, wherein R represents an unsubstituted aliphatic monocyclic ring with 6 or less carbon atoms (including a carbon atom at the 13-position of an indeno-fused naphthopyran), and R1 to R8, B, and B? each independently represent a hydrogen atom or a substituent, provided that one or more of R1 to R8 represent electron-withdrawing groups.

Abstract: A photochromic compound represented by General Formula 1 wherein, R represents a substituted or unsubstituted ring structure which is spirofused with an indeno-fused naphthopyran and has 3 or more and 20 or less carbon atoms (including the carbon atom at the 13-position of the indeno-fused naphthopyran), and R1 to R4, B, and B? each independently represent a hydrogen atom or a substituent.

Abstract: A refraction measuring apparatus measures refractive properties of an eye by two light bundles respectively passing through two apertures, the apparatus including: a first rotational member, rotatably supported about a first rotational center, provided with the two apertures on either side of the first rotational center; a second rotational member, rotatably supported about a second rotational center, provided with a light-transmission portion(s) and a light-shielding portion at different rotational-direction positions.

Abstract: A polymerizable composition for optical components, including an epithio compound (1) having an ether bond and an epithio compound (2) having a thioether bond or a dithioether bond.

Abstract: A technology that makes a change in the amount of aberration in a spectacle lens worn by wearer relative to a change in at least one of the aberration in the eye or spectacle lens. A method for designing a spectacle lens wherein, when a degree of change caused by a physical feature of wearer in at least one of an aberration distribution of an eye of wearer and an aberration distribution of a spectacle lens worn by the wearer is large, a spectacle lens that has an aberration distribution of which rotational asymmetry is weak in a region having a predetermined width and a center at any point on a main meridian of the spectacle lens is obtained as a design solution, and when the degree of the change is small, a spectacle lens of which rotational asymmetry is strong in the region is obtained as a design solution.

Abstract: A method for manufacturing a spectacle lens and a related technique thereof, includes: performing desired marking processing by irradiating one surface of a spectacle lens with laser, the spectacle lens having an object-side surface and an eyeball-side surface each having a different anti-reflection film, the marking processing including: determining an applicable wavelength of the laser to be used; selecting a surface with an anti-reflection film having a relatively low reflectance to the applied wavelength, out of the object-side surface and the eyeball-side surface; and performing laser irradiation to the selected surface using the applied wavelength.

Abstract: There is provided a spectacle lens, including: a base region that causes a light beam incident from an object-side surface to exit from an eyeball-side surface and converge to a predetermined position A on a retina through an eyeball; a plurality of defocus regions having a property of converging a light beam to a position B closer to an object side than the position A, or a position C closer to an opposite side of the position B as seen from the position A; and a transfer region provided at a boundary between the base region and the defocus region to gradually change a curvature between the base region and the defocus region.

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 holding jig which is capable of holding any of optical elements of various shapes or sizes, and free of causing deformation or damage of the optical elements. A holding jig for holding an optical element includes: a base; first, second and third holding parts which hold the periphery of a lens substrate; a first arm to which the first holding part is attached and which is provided to the base swingably about a pivot; a torsion spring biasing the first arm in a first swinging direction such that the first holding part is urged toward the lens substrate; and an arm locking mechanism configured to lock the swinging of the first arm.

Abstract: A method for manufacturing an optical member, and a related technique, the method including: applying desired laser processing to an anti-reflection film formed to coat an optical surface of an optical base material and having a multilayer structure including laminated layers of a low refractive index layer and a high refractive index layer, by irradiating the anti-reflection film with ultrashort pulse laser; and partially removing a predetermined layer including an outermost layer of the multilayer structure, the ultrashort pulse laser having a pulse width of 10 femtoseconds or more and less than 100 picoseconds, the anti-reflection film including a reactive layer that is relatively more reactive to irradiation with the ultrashort pulse laser than other layers included in the multilayer structure, wherein the reactive layer is subjected to the laser processing so as to be visually recognizable by visible light by being at least partially removed.

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.