A guard for headgear, the guard comprising a transparent guard member 1 and releasable attachment means in the form of a spring clip 3 to attach the guard to extend downwardly from the headgear, wherein the guard member 1 is pivotable about an edge, such as a peak, of the headgear.

Eyeglasses having eyeglass accessories releasably attached to the temple pieces of the eyeglasses to allow a fashion accessory such as headgear to be interchangeably interconnected to the glasses are provided. The connectors joining the headgear to the eyeglasses are substantially hidden from view during use. The fashion accessory is securely attached to the eyeglasses so that it cannot be dislodged from the eyeglasses by pulling during normal use. The fashion accessory preferably headgear typically is chosen from a variety of different types of headgear such as fashion head ties, head bands, ear warmers, hats and scarfs.

The eye glass frame is comprised of a pair of rims for receiving the lenses; side temples connected at one end to the outside edge of each rim, each side temple formed to rest behind the wearer's ears; and, at least one supporting member attached to the side temple in the temple of the wearer for securing the eye glass frame to properly position the lenses for the wearer's eyes. The glass frame may has several supporting members, which have several alternative configurations. That is, the supporting member may be comprised of at least one joint member attached to the side temple in the wearer's temple area, and at least one head seating member formed at the free end of the joint member. The supporting member may be further comprised at least one connecting member provided between the joint member and the head seating member. The head seating member has several alternative configurations.

An eye shield 2 is removably mounted on a mounting block 3 which is removably engaged in a dovetail groove 12 formed on the central portion of the underside of the visor 11 of a cap. A shaft member 23 disposed on the upper frame 22 of the eye shield 2 is pivotally snap engaged in a retaining channel 31 in the mounting block 3 whereby the eye shield 2 can be raised up and down relative to the visor 11. By pushing the mounting block 3 back and forth along the dovetail groove 12, the eye shield 2 can be moved to adjust the distance relative to the eyes of a wearer.

A chromatic-difference-free wide-angle camera for a head-mounted device, comprising a casing, a biconvex plus lens (1), and a biconcave minus lens (2). The biconvex plus lens (1) and the biconcave minus lens (2) are arranged in parallel in the casing and the biconcave minus lens (2) is closer to an object space. The biconvex plus lens (1) comprises a first surface (3) that is convex toward the object space, and a second surface (4) that has a flat edge and a center position that is convex toward an image space. The biconcave minus lens (2) comprises a third surface (5) that is concave toward the object space, and a fourth surface (6) that has a flat edge and a center position that is concave toward the image space. The biconcave minus lens (2) can move along an axis of the casing to adjust a distance to the biconvex plus lens (1), and compensate for a defocus in a zooming manner. The head-mounted device is suitable for being used with naked eyes by persons having -500 degree nearsightedness to 500 degree farsightedness. In use, a user can adjust the focal length according to his degree of nearsightedness or farsightedness to achieve a clear imaging without changing the conjugated distance between the human eyes and the screen.

An image display apparatus includes a frame along a head of an observer, a display unit that displays an image that can be visually recognized by the observer, and a supporting part attached to the frame and supporting the display unit, wherein the frame is fixed to a position in which the image displayed by the display unit connected to the frame via the supporting part is visually recognized by the observer.

Disclosed is a buckle device that releasably locks an elastic band including a plurality of engaging portions in a lengthwise direction. The buckle device includes a buckle holder and a pair of slide buckles slidably fitted to the buckle holder. The buckle holder includes a pair of locking pins apart from each other and a pair of guide surfaces. A pair of elastic bands are hung on the locking pins respectively. The guide surfaces are inclined in opposite directions with respect to a plane passing through the pair of the locking pins. The slide buckle has a ratchet protrusion configured to engage the engaging portion of the elastic band and a slide surface configured to come into surface contact with the guide surface of the buckle holder. The slide buckle is movable between an unlocked position where the engaging portion pushes the ratchet protrusion in a first direction to allow a movement of the elastic band between the ratchet protrusion and the locking pin, and a locked position where the engaging portion pushes the ratchet protrusion in a second direction opposite to the first direction so that the ratchet protrusion presses the elastic band against the locking pin.

An eyewear assembly for attachment to a hard hat, the hard hat including a main body and a visor, the eyewear assembly including at least one eyewear member, a mounting means to attach the set of eyewear to the headwear including an arcuate body adapted to substantially correspond to the shape of the visor of the hard hat, a rearwardly projecting locating tongue and at least one deformable attachment portion such that the mounting means is clamped to the visor of the hard hat by the at least one deformable attachment portion and at least one rotation mechanism associated with the mounting means and the eyewear to allow movement of the at least one eyewear member relative to the at least one mounting means between a use position in front of a wearer's eyes and a stored position adjacent the visor of the headwear.