Abstract: A lens that includes an electroactive region where an optical characteristic changes by electric control comprises: a transparent substrate; a second transparent substrate disposed facing the first transparent substrate; and an intermediate layer disposed between the first transparent substrate and the second transparent substrate; and including a mark including information.

Abstract: Provided is eyewear comprising a front piece that has a metallic wraparound end piece and a non-metallic hinge member that constitutes a hinge portion together with the wraparound end piece. Thereby eyewear that is comfortable to wear and has a metallic front piece is provided.

Abstract: A lens that includes an electroactive region where an optical characteristic changes by electric control comprises: a transparent substrate; a second transparent substrate disposed facing the first transparent substrate; and an intermediate layer disposed between the first transparent substrate and the second transparent substrate; and including a mark including information.

Abstract: Provided is a lens that includes a lens body and an internal electrode at least a part of which is exposed to an outer edge part of the lens body. The lens is configured so that in the outer edge part of the lens body, the shape of a first region that includes an exposed part where the internal electrode is exposed and the shape of a second region that does not include the exposed part are different. This configuration makes it possible to provide a lens that can be easily attached to a frame.

Abstract: This eyewear system is provided with a first lens including an optical characteristic variation region in which an optical characteristic varies, a first frame for retaining the first lens, and a second frame for retaining a second lens different from the first lens, the first frame having a first attachment part for attaching the first frame to the second frame, or the second frame having a second attachment part for attaching the second frame to the first frame, so that the first lens and the second lens face each other and the optical characteristic variation region is positioned in the field of view of a subject through the second lens.

Abstract: An eyewear lens according to the present invention is configured so as to be provided with: a transparent first substrate having a principal surface; a second substrate disposed facing the principal surface, the transmittance thereof with respect to light in a predetermined wavelength region being different from that of the first substrate; an electric element in which optical characteristics thereof is changed by electrical control, the electric element being provided between the first substrate and the second substrate; and an adhesive layer provided between the first substrate and the second substrate.

Abstract: Provided is eyewear comprising a front piece that has a metallic wraparound end piece and a non-metallic hinge member that constitutes a hinge portion together with the wraparound end piece. Thereby eyewear that is comfortable to wear and has a metallic front piece is provided.

Abstract: Provided is a lens that includes a lens body and an internal electrode at least a part of which is exposed to an outer edge part of the lens body. The lens is configured so that in the outer edge part of the lens body, the shape of a first region that includes an exposed part where the internal electrode is exposed and the shape of a second region that does not include the exposed part are different. This configuration makes it possible to provide a lens that can be easily attached to a frame.