Abstract: A temple-adjusting device for eyeglasses includes a movable base, a fix member and a lens frame. The movable base has a chamber provided with a saw-teeth section formed on a rear side. The fix member fits tightly in the chamber, having saw-teeth formed on a rear end surface to engage the saw-teeth section of the movable base. The movable base has its front end pivotally connected to a lens frame or two lens formed integral. Then a temple is pivotally connected to a rear end of the movable base, and when the temple is moved up or down the saw-teeth may change engaging location with the saw-teeth section of the movable base, adjusting an angle between the temple and the lens frame for a user wearing a pair of eyeglasses comfortably.

Abstract: Disclosed is a high-tension thread fastening structure for an eyeglasses frame having a lens held by stretching a length of high-tension thread around the lower sector of the lens to push the lens against the upper sector of rim. The length of high-tension thread has a single knot formed at each end, each knot being caught by each end of the upper sector of rim, and being terminated with a spherical end, thereby preventing the loosening or unbinding of the fastening. Alternatively the length of high-tension thread has first and second knots formed at each end, the first knot being caught by each end of the upper sector of rim, thereby preventing the loosening or unbinding of the fastening by using the second knot as a backup for the first knot.

Abstract: A rimless eyeglass frame and rimless eyeglasses are disclosed, which are not affected by a face width of a wearer of eyeglasses or deformation during use, and does not require adjusting operation or even required, adjustment operation can be simple. The rimless eyeglasses have left and right lenses, a wire form frame member having opposite ends and extending toward left and right, and a pair of lens holding portions arranged at center portion of the frame member and holding the left and right lenses at positions in the vicinity of inner edge portions thereof. The frame member is in non-contact with upper edge portions of the left and right lenses.

Abstract: Attachment of a bridge and temple hinge to the lens of rimless eye glasses. The attachment is accomplished by providing a tapered aperture is each lens adjacent to the outer surface of the lens and conforming the distal ends of the bridge and temple hinge to conform to the taper of the aperture. This combination provides a friction lock between the aperture and the bridge and temple hinge. The taper can be in the range of 1 to 20 degrees either convergent from the front to the back of the lens or divergent from the front to the back of the lens. Ideally a taper of 4.5 degrees is preferable. The taper can take the form of a cylinder, rectangular or triangular. The distal ends of the bridge and temple hinge can be inserted either from the front of the lens toward the back or from the back toward the front. The distal ends of the temple hinge can be inserted directly into the aperture or can be bent formed to provide a bias between the outer surface of the lens adjacent the aperture for non-rotational support.

Abstract: An eyeglass assembly including an endpiece which is adapted to engage a flexible strand for holding a lens, the endpiece having an inner surface which is disposed adjacent to the lens when the lens is present; the inner surface of the endpiece having a front edge and a back edge for being located adjacent to front and back sides of the lens; the front edge being chamfered to define a chamfer angle of substantially 8° to 65° with respect to the lens; and the back edge being chamfered to define a chamfer angle of substantially 8° to 50° with respect to the lens. The chamfering of the edges of the endpiece is effective to reduce the risk of chipping the lens when the endpiece is adjusted to fit the wearer's head. Also disclosed is an elastic cushioning ring disposed between the lens and the frame and/or the flexible lens supporting strand in a rimless or semi-rimless frame.

Abstract: A lens holding mechanism of spectacles with an extremely simple structure is provided, which mechanism nonetheless enables the respective lenses to be securely clamped. The respective lenses are held onto the respective endpieces or the bridge by abutting an elastically deformable holding member having a receiving portion with a first corresponding hole provided therethrough and an abutment portion with a second corresponding hole provided therethrough onto the lens surface and tightly inserting a first inserting pin of a joint member mounted onto the respective endpieces or the bridge into a holding aperture provided in the vicinity of the circumferential fringe side of the respective lenses so as to be tightly received into the first corresponding hole while at the same time by tightly inserting the second inserting pin into the second corresponding hole. In spite of such an extremely simple structure, the reliable lens clamping is assured.

Abstract: Eyeglasses includes two lenses, a bridge, two nose pads, two temples and plural bolts combined together. The two lenses have respectively a through hole and two insert holes in an inner upper side and a through hole and a insert hole in an outer upper side. The bridge has two sides and upper ends of said two nose pads and the connecting member of each temple respectively have a bent insert end to fit and stabilized in the through holes and the insert holes of said two lenses and screwed tightly by the bolts and nuts so that the bridge, the two nose pads and the two temples may be combined with the two lenses stably and quickly, reducing the weight of a frame and the weight load of the nose and the ears of a wearer, who can wear the eyeglasses with comfort, with the eyeglasses having an elegant appearance.

Abstract: A method for securing two or more spectacle members together includes forming an orifice and an opening in one of the spectacle members, the opening of the spectacle frame may have an open or enclosed structure, forming an extension and a projection on the other spectacle member and engaging the extension and the projection into the orifice and the opening of the spectacle member. The extension or the projection is then melted or deformed to engage with the other spectacle member and to secure the spectacle members together. The spectacle members may be the lenses, the bridge or the temples. The spectacle members may be easily and quickly secured together without fasteners.

Abstract: An eyeglasses lens-installing apparatus includes a lens. A substantially elliptical through-hole is formed in the vicinity of an edge of the lens. A substantially elliptical columnar member disposed on a lens sandwiching part of a connection member is fitted into the through-hole from one main surface side of the lens. The columnar member has a hole formed therein. A screw portion is provided on the inner peripheral surface of the hole of the columnar member. The columnar member is integral with the lens sandwiching part and the lug. A fastener is inserted into the through-hole from the other main surface side of the lens. The fastener includes a fixing part having a male screw portion disposed on the periphery thereof and a head part. The fastener is inserted into the through-hole, with a close-contact member installed on the periphery of the fixing part. At this time, the fixing part of the fastener is screwed on the screw portion of the columnar member.

Abstract: The frame for spectacles comprises a bridge (10), means for attaching the bridge to each lens (11) of a pair of lenses, a sidearm (12) for each lens, a lug (13; 36; 50) for the hinged articulation of each sidearm to the corresponding lens, means for attaching each lug to the corresponding lens. The bridge and the lug comprise a framework (15; 51) of metal wire; the means for attaching the bridge and lugs comprise an eyelet (15a, b, 23) of metal wire for each corresponding lens, a through-screw connection (20; 24) through the eyelet and through a corresponding hole (19, 25) in the lens and a cradle (17, 35) capable of receiving a peripheral portion of the corresponding lens in order to the lug (13; 36; 50) or bridge (10) from rotating about the axis of the through-screw connection.

Abstract: A system for attaching optical frames and lenses is described which provides positive, reversible attachment without rims, cords, or screws. The mating is performed with a mechanical closure onto a receiving portion of the lens which has been formed as the mating piece for the closure device. Lenses may be changed and adjusted in a straightforward manner and the resulting device presents a clean, fashionable appearance without the need for structural rims, cords, or screws.

Abstract: An angle adjustable device for eyeglasses includes a lens with two side bent protectors formed integral, and two temples combined with the two side bent protectors of the lens. Each end section of the temples has a first T-shaped engage means and a second engage means formed in an inner side surface. Each side bent protector has a curved guide slot and a center hole provided with notches. Then the T-shaped engage means engages the curved guide slot to move therein and the second engage means fits in the center hole with the second engage means functioning as a pivot to let the lens moved up or down to adjust its angle relative to the two temples.

Abstract: Eye protection is disclosed comprising a generally domed eye protector having a base and being shaped to fit over a single eye, and an attachment structure, comprising a double-sided adhesive portion of a shape corresponding to the base, an upper, releasable cover sheet and a layer release layer. The upper and lower releasable layers are removed from the adhesive layer, which is used to affix the eye protector over a user's eye.The invention is of particular use for eye protection during the use of a tanning bed, sunbed or other tanning apparatus.

Abstract: A pair of eyeglasses capable of maintaining the curve of an eyeglass main body even if temples are opened excessively wherein the temples do not pinch the head of a user to otherwise make the eyeglasses uncomfortable to wear even if the eyeglass main body is curved more sharply. The eyeglasses comprise a pair of left and right temples attached to left and right sides of an eyeglass main body through temple attachment members having a fork shape consisting of a fixed part fixedly attached to the eyeglass main body and a rocking part to which one end of each of the temples is attached.

Abstract: Semi-rimless or rimless eyeglasses wherein the rimless portion comprises a flexible strand, at least one end of which is threaded through one or more holes in an anchoring plate or upper rim portion and mechanically bonded thereto, thereby securing the lens within the frame.

Abstract: Eyeglasses without a frame includes two lenses, a bridge, two connectors and two temples. The bridge and the connectors have position members and rest members to embrace the two lenses in a stabilized position, and locking members for screws to pass through. Each temple has a fit member in a front end and a bent member behind the fit member, which has four flat surfaces. Then one of the four flat surface contacts flatly with a rear end of each connector to secure each temple in a position, with the bent member forming an acute angle with the connector to separate the temple from the connector to prevent friction of the both, thus preventing the plated surfaces of the both from peeling off. Each bent member has proper elasticity to let the temple expand outward to be worn with comfort and without disfiguring and damage of the eyeglasses.

Abstract: Attachment of a bridge and temple hinge to the lens of rimless eye glasses. The attachment is accomplished by providing a tapered aperture is each lens adjacent to the outer surface of the lens and conforming the distal ends of the bridge and temple hinge to conform to the taper of the aperture. This combination provides a friction lock between the aperture and the bridge and temple hinge. The taper can be in the range of 1 to 20 degrees either convergent from the front to the back of the lens or divergent from the front to the back of the lens. Ideally a taper of 4.5 degrees is preferable. The taper can take the form of a cylinder, rectangular or triangular. The distal ends of the bridge and temple hinge can be inserted either from the front of the lens toward the back or from the back toward the front. The distal ends of the temple hinge can be inserted directly into the aperture or can be bent formed to provide a bias between the outer surface of the lens adjacent the aperture for non-rotational support.

Abstract: Here is disclosed a lens holding mechanism of rimless spectacles with a simple structure, which nonetheless enables the respective lenses to be securely clamped. A first holding aperture and a second holding aperture are provided in the vicinity of the circumferential fringe sides of the respective lenses and a joint member provided with a first thrusting projection and a second thrusting projection is formed extensively from a contra-lens portion of an endpiece or a bridge. The first projection is inserted into the first aperture while the second projection is inserted into the second aperture, and at least the first projection and the first holding aperture are tightly held onto each other by means of a clamping sleeve or cap made of basically, synthetic resin. In spite of such an extremely simple structure, the reliable lens clamping is assured.

Abstract: A lens mount for eyeglasses lenses is provided with at least one bite means as an engagement means to permit locating the lenses relative to the lens mount and thus relative to a temple and/or bridge engaging in turn the lens mount. The bite means positively engage the surface of the lenses such that any twisting of the lenses relative to the lens mount is prevented. In a preferred embodiment the lens mount is configured as a bolt/nut design, the bite means being configured as protuberances on the underside of a bolt head opposing the lens.

Abstract: A ventilated browbar fame and eyewear utilizing the same. The browbar frame is detachably secured to a lens and temples are detachably secured to the browbar frame. The browbar frame includes a plurality of openings to allow air to pass through the browbar frame thereby preventing fogging of the lens. The temples are pivotally attached to the browbar frame to allow for adjustment of the pantoscopic angle of the eyewear.

Abstract: An eyeglass assembly has a rearwardly projecting side portion, a temple bar having a U-shaped body with inner and outer legs and a connecting leg disposed therebetween, and an angular adjustment construction for releasably and angularly mounting a temple bar to the side portion. The angular adjustment construction comprises an opening formed in the side portion, the opening having at least two side-by-side portions with a reduced dimension restriction element therebetween. A pin is formed on the outer leg of the U-shaped body of the temple bar. A serrated surface is formed on the rear edge of the side portion, and an engagement member is formed on an inwardly facing surface of the connecting leg of the U-shaped body of the temple bar.

Abstract: A pair of eyeglasses of the type which comprises a front which is constituted by lenses with which temples are associated. The eyeglasses are characterized in that each one of the temples comprises an anchoring end section which is shaped so as to form an elastic clip which can be detachably fixed, in a snap-together manner, in a preset seat formed in an outer end region of the corresponding lens.

Abstract: A pair of glasses including two outer butts, two inner butts, a bridge and two movable rim assemblies. Each outer butt has two stopper plates each being formed with a longitudinal channel in which the movable rim assembly is inserted. Each inner butt also has a longitudinal channel in which the movable rim assembly is inserted. By means of the longitudinal channels of the stopper plates of the outer butts and the longitudinal channels of the inner butts, the upper or lower rims of the movable rim assemblies can be fixed with the lenses. Therefore, the glasses can be changed between full rim pattern, upper half rim pattern, lower half rim pattern and rimless pattern.

Abstract: An eyeglass assembly has a pair of temples, each of which passes through an aperture in a lens. The temples are bent, and the holes oriented, such that the temples can pivot about the portion passing through the hole, allowing the temple to rotate between a wearing position and a storage position.

Abstract: A mount made entirely of wire material for spectacles with at least two lenses, wherein each hinge includes a fixed portion presenting an eyelet with a straight end used as a hinge pin about which to rotate the respective lateral arm on the hinge; the eyelet forms a stop for the respective lateral arm, to prevent the lateral arm from rotating beyond a normal work position; a movable portion of the hinge presents a coiled portion on the hinge pin and terminating with a cut-off turn forming a stop for arresting rotation of the lateral arm towards the respective lens; the lenses are connected to each other by a wire bridge; and a chamfer may be formed along the entire edge of each lens to house a rubber ring for protecting the edge or for ornamental purposes.

Abstract: A pair of eyeglasses adjustable in wearing angle includes a lens body with two side walls extending rear-ward, two connecters fixed movably with the two side sides walls of the lens body, and two temples fixed with the two connecters in such a way that angles of the temples relative to the lens body can be adjusted so as to enable this eyeglasses worn comfortably by persons having differently sized faces.

Abstract: The spectacle frame comprises two side pieces each adapted to be secured to one of two organic lenses by hinging one of its ends, and a bridge adapted to be secured between the two lenses, a part of the side pieces and/or the bridge comprising elements for directly securing them to the lenses. The securing elements are adapted to engage a portion of the cut-out edge of the lenses over a length of approximately 5-10 mm.

Abstract: The present invention is to provide a lens holding mechanism of a pair of rimless spectacles whereby the lenses can be securely held in check without an intricate structure therefore. According to this mechanism, a concave portion is notched on the side surface of the lens while a joint member, on the surface of which a groove capable of being fitted into said concave portion is formed, is provided on a proximal end portion with regard to the lens of an endpiece to pivotally and foldably support a temple or both ends of a bridge to connect a pair of lenses juxtaposed to each other. In order to prevent this joint member from slipping out of the concave portion of the lens, basically, a recess portion is provided on the groove of the joint member while a protrusive portion to fit into said recess is provided on the concave portion of the lens. Thereby, it becomes possible to securely hold the lenses in check with the endpiece or the bridge by means of an extremely simple structure.

Abstract: Spectacles including a plurality of clamp members for connecting lens supporting parts of the spectacles to the lenses, and elements for increasing friction resistance between a lens contacting portion of a clamp member and respective surfaces of the lens.

Abstract: A structure for rimless spectacles of the type fashioned from wire where the shafts are attached on either side to static hinge mounts, likewise in wire, each anchored by two parallel shanks with portions bent outward from the lenses and affording pairs of coils aligned with the points of anchorage; and where the bridge and nosepiece support is in one piece and exhibits an upturned-U profile with splayed members formed into a loop at bottom and redirected upwards, each terminating in a fork of which the pins are inserted obliquely through the relative lens and anchored in an interference fit; alternatively, each upwardly directed end can be bent sideways at 90.degree. to form an angled portion accommodated partly by a groove machined in the lens and terminating in a single pin, again inserted obliquely through the lens; and further where the lens presents a peripheral channel in which to seat elastically deformable ring.

Abstract: In industrial safety glasses comprising a one-piece plastics sight piece and a top of comparatively soft plastics on the forehead side which can be fixed to the sight piece and has a groove open toward the sight piece, it is provided, with a view to simple producibility, reliable arresting of the top and reliable protection of the user's eyes, that the top is injection-molded on the sight piece.

Abstract: A pair of eyeglasses includes a pair of lenses having a bridge member secured between the lenses and having two segments secured to the outer portions of the lenses with adhesive material for supporting legs and for allowing the segments to be secured to the lenses without drilling holes in the lenses. Two blocks each includes an end surface for adhering to the lenses and each includes an aperture for engaging with the extensions of the segments and for allowing the segments to be adjusted relative to the blocks and the lenses.

Abstract: A combined prescription lens and nose assembly is designed for securing to sport or safety glasses having an integral downwardly facing flange of inverted v-shape, or a separate flange secured to the glasses frame, for extending over a wearer's nose. The assembly includes a flexible nose bridge releasably secured to the flange to engage over a wearer's nose. Separate left and right prescription lenses are separately secured directly to left and right legs of the nose bridge so as to extend closely behind the left and right lens portions of the sunglasses. The lenses are each one piece, frameless members of transparent lens material and the lens material is secured directly to the nose bridge.

Abstract: The frame for spectacles without surround comprises: a pair of arms (3); for each arm, an element (7) for connection to the respective lens (L); an intermediate bridge (5) for the connection of the two lenses (L); a pair of pads (31) for support on the nose; means for locking the bridge and the connecting elements to the respective lenses. Advantageously, the connecting elements (7) each exhibit a first bent end forming a helical spring (7A) intended to be inserted in a corresponding hole (LF) of the respective lens (L); the locking means comprise, for each lens, a screw (15) inserted coaxially in said spring.

Abstract: Rimless eyeglasses having removable lenses. Each lens has a pair of bridge securing openings. The bridge is formed from a single wire. The single wire bridge is bent to form two c-shaped sections. Each c-shaped section is threaded through a respective lens, and ends of the bridge are inserted into one opening of the pairs of openings. A friction fitting secures an end of the bridge to a lens. Temples and nose pads are similarly secured to the eyeglasses. Each lens has a pair of openings for securing a temple and a pair of openings for securing a nose pad support. The temple has a c-shaped lens-securing member for engaging a pair of openings. A nose pad is mounted on the c-shaped nose pad support. The c-shaped nose pad support engages a pair of holes in the lens.

Abstract: A pair of spectacles has two lenses, two temples, and a lens positioning device. The lens positioning device comprises a bridge disposed between two lenses, and two pivot supports. The pivot support is disposed between the lens and the temple. Each lens has two hook holes. Each hook hole has a recess. The bridge has two nose pads and two inserted bars. Each inserted bar has a distal end. Each pivot support has a hook, a coiled ring, and a rod. An inserted end is formed at an end of the hook. A coil is disposed at an end of each temple. The outer diameter of the coil is the same as the inner diameter of the coiled ring. The inserted bar is inserted in the hook hole. The distal end is inserted in the recess. The hook is inserted in the hook hole. The inserted end is inserted in the recess. The coil is inserted in the coiled ring.

Abstract: A pair of eyeglasses adjustable in wearing angle includes a lens body with two side walls extending rearward, two connecters fixed movably with two sides of the lens body, and two temples fixed with the two connecters in such a way that angles of the temples to the lens body can be adjusted so as to enable this eyeglasses worn by persons having differently sized faces.

Abstract: An improved joint structure of frameless spectacles for connecting a joint section of a temple or a bridge to an associated lens is described. In order to improve productivity requiring no soldering and to prevent causing no stress in the lens, a bolt is inserted in an engagement aperture of the joint section of the temple or bridge, and in an engagement aperture made in the temple-to-lens or bridge-to-lens jointing area of the lens to be tightened by an associated nut. The engagement apertures and the bolt having such a shape that relative rotation may be prevented between the joint section, the lens and the bolt.

Abstract: A frame for rimless spectacles is provided which has no protuberances projecting from both surfaces of lenses, provides an improved effective field of view, and can be fabricated with ease. Blind holes are formed in nose- and temple-side edge surface portions of each spectacle lens, respectively. A pin-like projection is formed on each of nose-side and temple-side contact plates, and is inserted and fixed in the corresponding blind hole by using an adhesive.

Abstract: Sunglasses include a lens which is replaceable with an alternative one at any time, and provides such sunglasses in which frames thereof can be easily attached to and detached from the lens, and the frames can be held stably on the lens while attached thereto, and which provide a user with a good wear feeling. The sunglasses of the present invention include a lens, frames detachably mounted on the respective mounting portions of the lens; and temples attached to the respective frames. When the frames are mounted on the respective mounting portions, holding pieces of each of the frames hold therebetween the corresponding mounting portion, while an elongated protrusion and projection of each of the frames are engaged with an engagement long nick or slot and an engagement hole in the lens, respectively.

Abstract: The technical issues of the present invention are to provide a pair of the rimless spectacles whose right-and-left lenses can be mechanically simply interlocked and held in a stable condition by means of three points supporting system with simple metallic holding parts and also which is easy to correct an error of locking holes bored in the lenses, and if necessary, further to provide a pair of the rimless spectacles which is fittable to those eyeglasses wearers whose right-and-left eyes are narrow in distance and whose face is wide in breadth and which is also adequate for P.D. (pupil distance) standard.

Abstract: A spectacle frame is fabricated by bending a piece of wire. The bends include eyelets or loops which are sized to accept therethrough the threaded shanks of plastic screws, but to stop the screw heads. The screws are passed through the eyelets and threaded into mating threaded holes in plastic lenses to attach the lenses onto the wire.

Abstract: A lens coupling structure couples a bridge or a temple to a lens of rimless eyeglasses. A bridge or a temple is coupled through a flanged bush to the lens which is formed with a screw hole and a recess. The coupling portion of the bridge or temple and the flanged bush are formed with a screw hole. A fixing screw extends through the bridge or temple, the flanged bush and the lens. The flanged bush has a flange and a cylindrical portion received in the hole formed in the lens. The corresponding portion of the bridge or temple has a protrusion adapted to be received in a recess formed in the flanged bush. The protrusion may be provided on the fixing screw or a seating plate mounted between the flanged bush and the bridge or temple.

Abstract: In rimless spectacles having a pair of lenses directly connected to each other by means of a bridge member, and a connecting member pivoted respectively to a forward end portion of a pair of temples, said connecting member being directly attached to the lenses. A flexible packing is interposed in a V-letter clearance formed between the lens and the connecting member. A bolt and a nut fix the lens, the packing and the connecting member in such a state that the amount of compression of the packing may be varied for controlling the opening of the temples.

Abstract: Disclosed is a connector for use in connecting a lens to an earstem, comprising a main body which contains a hinge end and a lens receiving end. The connector contains a channel for receiving a portion of the lens. The pivot end of the channel contains a recess whereas the locking end of the channel contains a projection. The hinge end of the connector is attached to the earstem by a releasable pin connection. The lens is connected to the connector by inserting a lens into the channel where the lens is pivoted at the pivot end and then the connector is snapped down to cover over the top edge of the lens. Variations, component parts, and a wire frame dual lens detachable component system are also disclosed.

Abstract: In eyeglasses comprising glass-holding means which comprise pairs of retaining pins, which extend in respective bores of the lenses and are carried by a lens-holding portion of the eyeglass frame, it is desired to provide lens-holding means which are simple in design. To that end each pair of the retaining pins are constituted by two legs of a U-shaped wire and are connected by a crosspiece, which is connected to the lens-holding portion of the eyeglass frame.

Abstract: Eyeglasses including lens and frame portions with a holder and holding engagement with the lens. The frame portions are shaped of a wire material with the holder including looped bent wire portions projecting forwardly of the frame portions. The lens include a mounting hole or recess for receiving the loop bent wire portions, with the hole or recess being of an oblong shape corresponding to a cross-sectional shape of the loop bent wire portions so as to be operable to receive the respective loop bent wire portions with the loop bent wire portions resiliently squeezed between opposed narrow end portions of the oblong holes or recesses thereby insuring a firm yet releasable fixation between the lens and the frame portions.

Abstract: The invention relates to spectacles comprising a shield (1), side-pieces (2) and coupling means for coupling the side-pieces (2) to the spectacles. According to the invention, the coupling means are arranged for removably coupling the side-pieces to the spectacles and include: a clip (4) integral with the side-pieces and comprising two wings (5, 6) between which extends an end of the shield, a pin (17) mounted on one (6) of the said wings so as to be able to move between a first position in which it extends between the two wings and a second position in which it extends beyond; and a mortise (24) provided in the said end of the shield and arranged to cooperate with the pin (17) in the said first position and thus immobilize the said end.

Abstract: An adjustable, disposable eye protector is formed from an adhesive-backed ovoid to circular shaped film segment. The conical shaped eye protectors are easy to use for reducing exposure of the eyes to incident light or other potential eye irritants. When formed from polymeric film segments having low ultraviolet (UV) transmittance, the present eye protectors are used effectively to protect eyes from harmful UV radiation.

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.