A first determination unit determines whether a movement of an eyelid or an eyebrow of a wearer has occurred, based on an electric signal measured by a first measurement electrode with a common electrode as a ground potential. A second determination unit determines whether a movement of a jaw of the wearer has occurred, based on an electric signal measured by a second measurement electrode with the common electrode as a ground potential. An output unit outputs a command due to operation of a spectacle frame by the wearer when the first determination unit determines that the movement of the eyelid or the eyebrow of the wearer has occurred and, at the same time, the second determination unit determines that the movement of the jaw of the wearer has occurred.

A first determination unit determines whether a movement of an eyelid or an eyebrow of a wearer has occurred, based on an electric signal measured by a first measurement electrode with a common electrode as a ground potential. A second determination unit determines whether a movement of a jaw of the wearer has occurred, based on an electric signal measured by a second measurement electrode with the common electrode as a ground potential. An output unit outputs a command due to operation of a spectacle frame by the wearer when the first determination unit determines that the movement of the eyelid or the eyebrow of the wearer has occurred and, at the same time, the second determination unit determines that the movement of the jaw of the wearer has occurred.

There is provided a head-mounted display comprising an image generator that generates an image, a pair of optical plates to be arranged in front of both eyes of an observer who observes the image, the pair of optical plates causing the image to be displayed, a first frame that holds the pair of optical plates, and a second frame including a to-be-fixed part, in which a fixing part to which the to-be-fixed part is fixed is provided at the central part of the first frame in the horizontal direction.

An eyewear comprising a frame and a lens configuration is disclosed, wherein the frame includes a channel into which a step bevel formed along an edge of the lens removably insertable, wherein the frame includes a plurality of protrusions that contact ends of the step bevel to retain the lens within the frame.

Various aspects include audio eyeglasses with a frame including: a lens region; a pair of arms extending from the lens region; a hinge coupling each of the pair of arms with the lens region; and a cable extending through each hinge, where each hinge includes: a body defining a cavity accommodating the cable; and a hinge mechanism within the body, the hinge mechanism having: a spring located in the lens region, the spring including at least one lever arm extending within the cavity; and a cam member contacting the lever arm of the spring, where the cam member includes: a first contact surface for resisting kickback from the spring when the audio eyeglasses are in a fully open position, and a second, distinct contact surface for resisting kickback from the spring when the audio eyeglasses are in a fully closed position.

Various aspects include audio eyeglasses with a frame including: a lens region; a pair of arms extending from the lens region; a hinge coupling each of the pair of arms with the lens region; and a cable extending through each hinge, where each hinge includes: a body defining a cavity accommodating the cable; and a hinge mechanism within the body, the hinge mechanism having: a spring located in the lens region, the spring including at least one lever arm extending within the cavity; and a cam member contacting the lever arm of the spring, where the cam member includes: a first contact surface for resisting kickback from the spring when the audio eyeglasses are in a fully open position, and a second, distinct contact surface for resisting kickback from the spring when the audio eyeglasses are in a fully closed position.

Eyewear can include lenses having perimeters that are customized for an intended wearer. The perimeter of the lenses can be determined based on anatomical features of the wearer's face, field of vision, or other parameters specific to that individual. A provisional lens perimeter obtained may be modified in curvature and/or size to arrive at a desired final lens perimeter, based for example on stylistic preferences or to accommodate external elements affecting the perimeter and/or curvature of the lens. Customized lenses can be fabricated based on the determined lens perimeters. The customized lenses can be assembled into completed eyewear that is customized for a wearer, for example having shapes, sizes, and designs not otherwise possible.

Eyewear can include lenses having perimeters that are customized for an intended wearer. The perimeter of the lenses can be determined based on anatomical features of the wearer's face, field of vision, or other parameters specific to that individual. A provisional lens perimeter obtained may be modified in curvature and/or size to arrive at a desired final lens perimeter, based for example on stylistic preferences or to accommodate external elements affecting the perimeter and/or curvature of the lens. Customized lenses can be fabricated based on the determined lens perimeters. The customized lenses can be assembled into completed eyewear that is customized for a wearer, for example having shapes, sizes, and designs not otherwise possible.

An ophthalmic lens is provided. The ophthalmic lens includes a first optical surface, an opposing second optical surface and an edge surface connecting the first optical surface and the second optical surface, wherein the edge surface is planar. The ophthalmic lens further includes a first layer disposed on the edge surface, wherein the first layer includes a coating material effective to reduce a reflection caused by a profile of the edge surface, and wherein (a) the first layer defines a structural element for fastening the ophthalmic lens to an eyewear frame, or (b) the ophthalmic lens further includes a second layer disposed on the first layer, wherein the second layer defines a structural element for fastening the ophthalmic lens to an eyewear frame. A method of manufacturing the ophthalmic lens and an eyewear including the ophthalmic lens are also provided.

An eyewear basically includes a front frame, a pair of temples, a lens assembly and a pair of engagement members. The front frame has a pair of connecting parts. Each of the temples has one end connected to the front frame so as to be openable and closeable relative to the front frame. The lens assembly has a light transmission part for transmitting light, and a pair of connected parts are respectively connected to the connecting parts at a time of attachment to the front frame, so that the lens assembly can be detachably attached to the front frame. The engagement members are respectively provided to the temples, and are configured to move toward and away from the front frame in association with opening and closing motions of the temples, so that the engagement members are engageable with the lens assembly.