Abstract: In an eyeglass frame comprising a pair of lens fixing rims, a bridge connecting the paired rims, and a pair of temples, the bridge and/or the temples are made of Ti-Ni-V alloy having a super elasticity of a generally rectangular stress-strain hysteresis loop over a relevant temperature range of 0.degree.-20.degree. C. so as to improve eyeglass wearing comfortability. The Ti-Ni-V alloy comprises Ni and Ti with an atomic ratio Ni/Ti of 1.02-1.06 and V 0.25-2.0 at. %, and is worked into a desired shape and thereafter is heat-treated at 425.degree.-525.degree. C. for 10-60 minutes.

Abstract: A shape memory alloy is used for face-contacting parts (1, 3, 4, 5; 101) and lens-fixing parts (2) of a spectacle frame, and parts (12, 13; 103) connected thereto are formed of titanium, a titanium alloy, nickel, or a chromium alloy. These parts are suitable soldered by a soldering material (111) formed of 5-15 wt. % of palladium, 5-15 wt. % of gallium, and a balance consisting of silver.

Abstract: An eyeglass assembly includes a lower lens holding frame and an upper detachable brow piece. The lower frame includes a pair of bridge pieces that span the lens holding openings and are engaged by the brow piece.

Abstract: Eyeglasses of the type which permit interchanging of framed lenses are disclosed which employ a lens assembly including a pair of lenses mounted in a frame. The frame, in turn, is releasably mounted to a backing support which supports the upper portion of the frame and includes a retaining clip pivotally mounted between an open position permitting easy mounting of the lens assembly, and a second closed position which maintains engagement between the lens and backing assemblies.

Abstract: It is proposed to embed in a saddle-shaped spectacle bridge made of silicone and provided with two wings, a cross member connecting the wings, respectively one spectacle rim groove in the frontal external longitudinal zone of the wings--the groove having a bottom surface and a rear surface which is approximately vertical thereto--and with a fastening hole which is provided in the cross member from the front thereof a metal spring, whose cross-section extends in the shape of a bell, with the cross piece thereof in the cross head and to provide the two legs thereof, which have a curvature to the outside, in a wing each as a ridge, the untensioned position of the spring having a greater dimension of expansion than corresponds to the position of use of the saddle-shaped bridge and the spring being arranged behind the groove.

Abstract: An eyeglass assembly includes first and second lens holding frames, each of which has a temple piece pivotally attached to and extending rearwardly from an edge portion of the frame. The first and second frames are releasably connected to each other and the pin is completely disposed within the hole in the frame so that when the frames are connected they will be flush against each other and lying in the same vertical plane or parallel planes and no portion of the connector will be visible.

Abstract: Spectacles of the so-called metal-fitting type exhibits, in addition to the spectacle lenses, a bridge, two temples, two hinge pieces for the two temples, fastening devices for connecting the bridge and the hinge pieces to the lenses, and at least one bridge and a bridge mounting, whereby the mechanical, supporting connection between the bridge and the hinge pieces alone secures the spectacle lenses intermediately situated and no eyewires are present. With the possible exception of the lenses, in these spectacles all the components determining its geometry are made of plastic. By comparison to the traditional metal-fitting spectacles, in which these structural components are all made of metal, these new spectacles are lighter, safer from breaking, and susceptible of being fitted to the wearer in a simple fashion.

Abstract: The present invention relates to plastic eyewear, i.e. spectacle frames and parts thereof in which the plastic is selected from the group consisting of polyetherimide and polyethersulfone.

Abstract: The present invention relates to a support structure for a spectacles frame and a front intended to be adapted thereto. The support structure comprises a locking arm or shutter movable in rotation between an open position where it allows to penetrate the projecting element of the front in an interacting hollow housing and a locking position where it is folded back in order to block this projecting element. Application to the realization of spectacles frames having detachable fronts.

Abstract: An eyeglass assembly includes first and second lens holding frames, each of which has a temple piece pivotally attached to and extending rearwardly from an edge portion of the frame. The first and second frames are releasably and pivotally connected to each other in an overlapping manner and the snap connector use to join the frames is disposed within recesses in the frames so that when the frames are connected they will be flush against each other and no portion of the connector will be visible.

Abstract: A spectacle frame comprising two components which constitute a supporting structure and a face assembly, respectively, mounted removably to each other, wherein one of the components comprises at least one locking element and the other component comprises a recess adapted to receive the at least one locking element being movable between a rest position wherein it allows the components to be separated from each other and an active position wherein the at least one locking element cooperates with the recess when the supporting structure and the face assembly are mounted onto each other, so as to firmly connect the supporting structure to the face assembly.

Abstract: A spectacle frame comprises a crossbar and a removable lens holder comprising a central bridge, side pieces joined by the bridge retaining respective lenses. The bridge mates with a central section of the crossbar to removably attach the lens holder to the crossbar. The bridge comprises two branches curved in opposite senses, substantially in alignment with the side pieces, to constitute as plane closed loop. The branches of the bridge carry resilient retaining clips which engage co-operating edge portions of the central section of the crossbar.The central section comprises two branches curved in opposite senses and joined together to constitute a substantially plane closed loop analogous to and superposable on the closed loop formed by the curved branches of the bridge.

Abstract: The inner surface of the temples of eyeglasses or the bridge connecting the lens bows, at least in areas that come in contact with the wearer's skin, has a thin, glassy base coat. Over the base coat is a thin, air-hardened, sprayed silicone elastomer coating.

Abstract: A spectacle structure having a plurality of flexible portions formed in head engaging components thereof is disclosed wherein the flexible portions permit unidirectional bending of the head engaging components of the spectacle structure to thereby conform to and exert inwardly directed pressures on the head of the person to support the spectacle structure thereon, said spectacle structure engaging the head portions for support with an absence of support by the nose or ears. The spectacle structure includes lens means depending from a front frame member and a pair of elongated temple members hingedly connected to respective opposite end portions of the front frame member. The head engaging components of the spectacle structure are of a combined length such that one of the temple members is in crossing and overlying relation with the other of the temple members when in an open and relaxed position.