A device for retaining eyewear is disclosed. The device comprises one or more tethers rotatably coupled to a plurality of temple fasteners, the temple fasteners coupled to the temples of eyewear disposed on the ears of a user. More specifically, the device can further comprise a plurality of positioning members configured to couple with and rotate within a temple fastener to allow a tether coupled to the rotating position member to rotate relative to the head and neck of the user. The at least one tether can be disposed in various fixed positions relative to the head and neck of the user as well as relative to the eyewear.

A prescription lens insert and methods of use are described, in which flexing a frame of a prescription lens insert, such that left and right rims of the frame are displaced mediolaterally, aligns respective larger ends of two keyhole apertures of the frame with left and right mushroom-shaped connector pegs protruding rearward from a pair of protective glasses. The prescription lens insert is then placed over the left and right connector pegs, such that distal heads of the connector pegs pass through the two keyhole apertures of the frame and the keyhole apertures are disposed adjacent shaft portions of the connector pegs. The frame of the prescription lens insert is then unflexed to align respective smaller ends of the two keyhole apertures with the left and right connector pegs, such that the distal heads prevent removal of the unflexed frame.

Disclosed are spectacles with replaceable pins, and belongs to the technical field of spectacles. The spectacles with the replaceable pins may include a spectacle frame and the pins, an edge of the spectacle frame being pivoted with a bolt, the bolt being inserted into an inserting hole of the pin, an elastic piece pushing a stopping block to enter into an opening on a side of the pin, and the spectacle frame being connected with the pins in a buckling manner. When a pressure is applied to the stopping block, the stopping block withdraws from the opening on the side of the pin when elastic force of the elastic piece is overcome and retracts into the accommodation cavity, in this way the buckling connection of the spectacle frame with the pins is removed, the pins and the spectacle frame are demountable, and it is convenient to replace the pins.

An eyeglass system including primary glasses and detachably engageable auxiliary glasses. The auxiliary glasses include a first and second auxiliary lens connected together by a bridge. Each lens has an exterior surface, an interior surface, and a peripheral edge extending between the interior and exterior surfaces. An aperture is defined in each of the lenses and the aperture extends between the interior and exterior surfaces, and originates in the peripheral edge and extends for a distance into the lens. A connector is engaged in the aperture in each of the lenses and this connector detachably engages the primary glasses. Preferably, the aperture is keyhole-shaped and the connector includes a boss that is a complementary keyhole shape. The connector may be provided with a magnet that is attracted to a magnet embedded in a lens of the primary glasses.

An assembly structure for eyeglass lens comprises a lens and a connection component. The lens is formed with an insertion section at one end which end toward to the connection component and at least one engaging hole in the insertion section. The connection component is formed with a slot at one end which end toward to the lens, and connected to a temple at the other end which end far away the lens. The slot is formed with a pin on the wall. After the insertion section of the lens is inserted into the slot of the connection component, the pin on the slot wall is engaged with the engaging hole of the insertion section, assembling the lens and the connection component together.

An assembly structure for eyeglass lens comprises a lens and a connection component. The lens is formed with an insertion section at one end which end toward to the connection component and at least one engaging hole in the insertion section. The connection component is formed with a slot at one end which end toward to the lens, and connected to a temple at the other end which end far away the lens. The slot is formed with a pin on the wall. After the insertion section of the lens is inserted into the slot of the connection component, the pin on the slot wall is engaged with the engaging hole of the insertion section, assembling the lens and the connection component together.

A lens exchange structure of spectacles is disclosed. The lens exchange structure comprises a lens frame, a lens, a pressing part, and an elastic part. A channel is disposed on the bottom of the lens frame. An intercalation hole is disposed on the inner side of the central nose bridge. The pressing part is inserted into the intercalation hole. The pressing part has hook parts and an accommodating groove for receiving the elastic part. One terminal of the elastic part is against the wall of the lens frame, and the lens has positioning holes for receiving the hook parts. Therefore, a pressing action may be used to compress or release the elastic part to let the hook parts correspondingly hook in or release from the positioning holes. The effect of easy lens assembling and exchanging as well as stable positioning can be accomplished.

A device for retaining eyewear is disclosed. The device comprises one or more tethers rotatably coupled to a plurality of temple fasteners, the temple fasteners coupled to the temples of eyewear disposed on the ears of a user. More specifically, the device can further comprise a plurality of positioning members configured to couple with and rotate within a temple fastener to allow a tether coupled to the rotating position member to rotate relative to the head and neck of the user. The at least one tether can be disposed in various fixed positions relative to the head and neck of the user as well as relative to the eyewear.

A pair of glasses includes frame including a first frame including a supporting portion and a second frame including a supporting portion, a pan of glasses legs mounted to the frame, and at least one pair of nose rest members. Each of the supporting portions defines a groove extending through the supporting portion, and each of the nose rest members is partly received in a corresponding groove. The nose rest members can be pulled out of the grooves by a hand of a user.

An eyeglass member which is attachable to and detachable from a frame mounted to a head of a user, including: a right-eye polarized-light modulation layer which has a first optical axis and modulates polarized light at a right-eye region positioned in front of a right eye of the user; a left-eye polarized-light modulation layer which has a second optical axis different from the first optical axis and modulates polarized light at a left-eye region positioned in front of a left eye of the user; a polarizing layer which is laminated on and astride both the right-eye polarized-light modulation layer and the left-eye polarized-light modulation layer and has an absorption axis extending in an equal direction across the right-eye region and the left-eye region; and a labelling portion which indicates a left-right orientation for mounting to the frame.