Abstract: A temporary adhesive lens securing device is provided with low tack adhesive for temporarily securing a lens to a frame in order to hold the lens in place temporarily to allow conventional permanent affixing to occur. The temporary device is composed of strip members in a variety of configurations. The strip members are made of clear plastic material and do not show up against the background of the lens and frame. The temporary lens securing device is used by professionals, i.e., ophthalmologists, optometrists and opticians, when mounting lenses and is not permanently affixed to the frames. This device may be also used to securely mount a lens to a frame where the lens has been cut too small for a particular frame. The strip would effectively increase the circumference of the lens so that no gap between the lens and frame would exist.

Abstract: Eyeglasses including lens and frame portions with a holder in 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: A pair of spectacles has a pair of channels formed in the frame and receiving respective temples which can be retracted and swung into a position in which they lie transverse to the frame to bring them into the position of use. The bar forming the frame member is curved to conform to the head of the wearer at the brow and the temples are of high flexibility so that they can conform to the curvature of the channels in the bar as well as to the head of the wearer. In additon, the ends of the bar are provided with detents for retaining the temples in respective inwardly swung or use positions.

Abstract: In a method and apparatus for making a lens for a pair of prescription eyeglasses a lens blank is shaped and finished on one of its major surfaces through the use of a machine controlled by the prescription information and with a new expendable lap being made each time a new lens is wanted. A machine for cutting a lens blank and/or a lap blank is controlled in three axes by a set of point data related to and obtained in response to the input into the control system for the machine of prescription information. Lap blanks and lens blanks usable by the machine are distinguishable from one another by each lap blank, or each lens blank, having an anomaly, such as a piece of magnetic material detectable by a sensor or the blank is rotated by the machine.

Abstract: An eyeglass construction characterized by having a conventional frame with a pair of rim supports for receiving and holding a pair of lenses. The rim supports have a plurality of fixed prongs distributed around the rims at points that are remote from a bridge that connects the tops of the two rim supports. Affixed to the frame, usually near the bridge, is a retaining mechanism that includes a housing having two open ends. A wire-like member is adapted to protrude out of each of the two open ends of the housing for a distance which is adequate to cooperate with the fixed prongs for firmly holding the lenses in the rim supports. Whenever it is desired (or necessary) to replace one or both of the lenses, the appropriate wire-like member is retracted into the housing, such that the adjacent lens may be manipulated--usually by slightly rotating it--in order to free it from the rim support. The wire-like retaining member is biased in its extended position by a bias member having the characteristics of a spring.

Abstract: A spectacle frame comprising a hollow U-shaped base structure with bars pivotally mounted at the ends thereof and a pair of lever members pivotally mounted in the middle of the base structure and attachable by snap action to the upside of the base structure. Decorative eyebrow members are attachable by snap action of projections and recesses to the lever members.

Abstract: The invention relates to a device for fixing lenses in the bezel rims of a spectacle frame, allowing easy and repeated mounting and removal of these lenses on to and from the frame. The bezel of the frame rim has a concave polyganol shape in cross-section. A metal ring sets the lens definitively round its periphery and has a rounded convex external edge. As viewed in cross-section, the contact between this external edge and the bezel is therefore made at points when the ring/lens assembly is fitted in the bezel rim.

Abstract: A safety lens liner adapted to be mounted on the peripheral edge of an eyeglass lens is disclosed. The liner is shaped to engage a groove on the rim of an eyeglass frame to secure the lens in place. The lens incorporates a circumferential groove on its peripheral edge, which receives a tongue extending inwardly from the inner surface of said tongue, for positioning the tongue on the peripheral edge of the bead.

Abstract: An assembly includes a rimless spectacle frame, a spectacle lens, and a tough cord. The frame has an inverted U-shaped portion formed in its inward surface with an open-ended lens receiving slot for engaging with the upper peripheral portion of the lens. Each end of the inverted U-shaped portion has a counterbore formed therethrough. The cord extends through two counterbores in the inverted U-shaped portion and is integrally formed with two enlarged end portions which are confined within the large-diameter outer end portions of the counterbores respectively. One of the interengaging surfaces between the lens and the cord has a slot so that they can be engaged with each other, thereby retaining the lens on the frame with the cord.

Abstract: Eyeglasses having lenses mounted in individual sockets and retained therein by hook members partially extending across the lens surfaces, the sockets being connected by a bridge which is vertically slidable and includes hook members movable into and out of engagement with the lens surfaces for easy removal or installation of the lenses into their sockets.

Abstract: The front assembly of an eyeglass frame comprises two rim members. Each of these is adapted to hold a respective lens. The two rim members are joined together by a bridge member. Each rim member comprises at least one part made from a shape memory alloy and a main part made from a neutral material.

Abstract: Eyeglasses which have removable and replaceable lenses to meet individual vision requirements with respect to focal length and strength. In one embodiment, the lenses are slidably and removably mounted to a rod-like holding element. The position of the lenses relative to one another can be changed by sliding the lenses along the holding element. This allows the eyeglasses to accommodate differences in the eye spacing among people. The lenses can also be removed and replaced should an individual desire or need lenses of different focal lengths or strengths.

Abstract: A slim spectacle rim part comprises an integrally lens-holding rim in the form of an open ring and having a pair of side joints provided on the two adjacent ends of the open-ring shaped rim. The molding is of a thermoplastic resin reinforced with short fibers.

Abstract: A viewing assembly for use in the lens opening of a protective facemask comprising: a transparent housing adaptor sealingly mated to the lens: a substantially rectangular retainer for a lens cartridge assembly comprising opposing planar panels and providing in the latched position a recess that sealingly retains an enclosed lens cartridge assembly; an open area in each of said planar surfaces providing a common portal for viewing through the holder body; a lens cartridge holder defining a first open frame portion the outer periphery of the assembly being adapted to sealingly engage the inner surface of the holder adaptor; a first transparent lens positioned within said housing and abutting the assembly flange and positioned so as to provide sealing contact therewith; at least one other similarly configured lens adapted to adjoin the first lens yet being removable therefrom by manual manipulation; and at least one flexible strip secured to each of the removable lenses and at its other extremity being of a suff

Abstract: An eyeglass or spectacle frame comprises rims formed by threadlike flexible tie members. A bridge member is carried by and interconnects adjacent portions of the tie members. A connecting and tightening temple member tightens each tie members when the lenses are received in the rims, whereupon the lenses bear firmly against the bridge member and the temple members. An adaptor may be inserted between the temple members and the adjacent edge portions of the lenses for accommodating lenses of lesser thickness.

Abstract: Rimless spectacles have the lenses which are not held by screws. The nose-bridge and the end-pieces of the temples consist of hook-like clamps that hold and touch the lenses for a short length from the front and/or the back side. These clamps together with a tight-thread or band going all the way around the lenses hold the lenses to the nose-bridge and end-pieces.

Abstract: An eyeglass frame comprises a main support structure, a pair of rims each comprising a relatively rigid upper rim member and a flexible tie attached at its ends to the upper rim member. The nose pads have grooves for receiving them on inner terminal parts of the respective upper rim members. There are two transverse holes in the terminal part of each upper rim member. A passageway continues each groove through a land in each nose pad. The ends portion of each tie is threaded upwards through the passageway and then through the holes in the upper rim member for attachment thereto. The inner surfaces of the nose pads bearing against the wearer's nose have no recesses or the like for collecting dirt or grease.

Abstract: Eyeglasses have lenses resting in partial rims and these are held tight by means of a thread which travels in grooves on the lens edges. Adjustment and tightening of the tension of the thread to hold the lens on the eyeglasses is accomplished by a tensioning device carried on the eyeglasses. The tension of the thread is lessened to allow lens replacement or is increased to hold the lens in position with operation of the tensioning device.

Abstract: There is disclosed a frame front for eyeglasses permitting interchanging of lenses without any tool. The frame front comprises a main bridge member connecting lens supports and a median bridge member extending between the lens supports but disconnected therefrom. The median bridge member has retaining notches at its opposed ends for receiving peripheral portions of the lenses and their associated lens supports. The retaining notches define an abutment position in which the lenses are retained on their supports and a limit position permitting removal of the lenses through openings formed by the notches. The lens supports are resiliently mounted by the main bridge member to permit displacement outwardly and upwardly from the abutment position to the limit position.

Abstract: In a spectacle frame each lens surround is formed by a relatively rigid rail and a flexible retaining member attached at each end to the rail. To effect this attachment the ends of each rail are formed with two transverse holes through which the flexible retaining member is passed twice. Each nose pad of the spectacle frame is also formed with two transverse holes through which the flexible retaining member may be passed twice. The holes in each nose pad correspond to those in the nose end of the associated rail, so that the nose pad may be attached to the rail by means of the flexible retaining member holding a lens in position in the surround.

Abstract: A technique is presented for increasing the effective strength and impact resistance of mounted, finished, edged and strengthened ophthalmic glass lenses and particularly those which are relatively thin and prestrengthened chemically. This is accomplished by the incorporation of material preferably applied to the edge of the lens such that the material cushions a relatively thin eyeglass lens when mounted in an eyeglass frame. The elastomeric material is selected to have high strength and low modulus properties. One particular group of materials meeting these requirements is known as heat shrinkable material. This material is preferably applied to the edge of a lens in the form of a gasket.

Abstract: An optometric device includes a semi-rimless plastic two lens frame having two rim surfaces for mounting two lenses in the frame, each having a circumferential groove therearound. The lenses are mounted by the use of a rib projecting from the rim surfaces and integral therewith and configured to engage with a portion of the lens groove to axially fix the lens and by a line and winder which releasably engages the remaining portion of the groove of the lens to radially fix the lens.

Abstract: An eyeglass frame having removable lenses consisting of lens rings to which are secured movable upper or lower lens hooks receiving a removable lens. The frames may be utilized for interchangeable prescription, non-prescription, safety glasses and sunglasses. Movable upper or lower hooks complete the retention means for retaining the lenses in the eyeglass frame. Nine species of movable upper or lower hooks are visualized. The preferred species is a rotatable hook. Other species visualized are spring loaded projection, frictional slide projection, a projecting tilt arm, and screwable hooks.

Abstract: An elastic strip member is interposed between the inner peripheral surface of a spectacle or sunglass frame and the outer peripheral surface of a spectacle or sunglass lens so as to prevent the lens from colliding with the frame, and further, ridges raised from opposite side surfaces of the strip member are inserted into a groove formed on the inner peripheral surface of the frame and a groove formed on the outer peripheral surface of the lens so as to prevent the lens from falling off the frame.

Abstract: The invention relates to the production of spectacle frame parts of synthetic material and in particular to the moulding of spectacle frame faces of synthetic material, for example, of polyurethane.The faces are moulded between two casting half-moulds each comprising a plate having an impression on one surface thereof. Each plate has a substantially equal thickness at every point and is made of a polyolefine. Use of such half-moulds enables the faces of spectacle frames to be directly moulded into their final shape.

Abstract: A plastic frame safety spectacle of the type provided with removeable concavo-convex lenses has a variable-depth lens channel formed in the respective plastic rims, each channel being configured to complementally receive a lens periphery whereby the lenses are securely held in position within the rims yet may be removed or replaced using only manual pressure and without requiring heating or other special processing of the frame. Each lens channel is continuous around its respective rim, gradually and progressively becoming deeper as the upper portion of the rim is approached such that maximum restraining is provided for the lenses along the top rims where deformation is most likely to occur from twisting or bending of the spectacle frame. The back portion of each rim is provided with a lens-engaging support ledge to preclude removal of the lenses from the backside of the frame thereby seating the lenses against dislodging by frontal impact.

Abstract: Flip down sunglasses suitable for use in athletic competition are provided. A fixed part is attached to the wearer's forehead by means of ear pieces and an adjustable strap. A movable part is pivotally mounted to the fixed part and carries a sun visor. The sun visor may be locked into position both vertically and horizontally by means of grooves carried on flexible arms joined to the fixed part to engage ribs carried on the movable part.

Abstract: A high impact sight glass assembly and production method are described, in which the glass lens is fused into an enamel coated metal ring such that the glass lens is fused to the enamel coating and the entire glass area is under compression. The glass lens is placed in the bore of a flange, and the lens and flange ring are heated, whereby the lens flows to conform to the bore of the flange and is fused to the enamel coating.

Abstract: Warpage-free spectacles comprised of plastic lenses and plastic frames wherein the frames are constructed of materials having the same or lower tensile elastic modulus and/or the same coefficient of thermal expansion as the lens material.

Abstract: A device for determining a prescription lens for eyeglasses to be used by highly hyperopic patients, in which a frame mounted lens is inserted in a trial lens mounting to project on either side of the frame with one surface of the lens formed with an aspherical convex curvature and the other surface of the lens being concave and formed with a spherical curvature.

Abstract: A spectacle combination which allows the wearer of eye glasses to change a single pair of glasses to match any individual fashion or mood. The basic spectacle unit is a combination of two lens, two lens rims, two temple members and a nose bridge. To complete the combination there are a number of attachable pairs of one-piece lens rim covers of various colors, designs, shapes and materials. The easily slid on lens rim covers are securely held in position by a lip, friction tape, magnetic strips or a snap-on type of friction fitting arrangement. Tinted lens may be inserted in the individual pairs of lens rim covers in order to transform normal spectacles into sunglasses. In addition, the lens rim covers may be designed to affect a change in the shape of the actual lens itself from, for instance, the standard elliptical shape to a more high fashion octagonal square or rectangular shape.

Abstract: The invention concerns the application of a filler strip to an eye wire rim of a glasses frame to more securely hold a lens in place. The filler strip is provided as a viscous liquid which is applied to the eye wire rim as a bead extending along a selected reach in the rim. The viscous liquid will quickly harden to a resilient solid forming a seat in the eye wire rim to receive the edge of the lens.

Abstract: A spectacle or eyeglass frame that is especially designed such that when placed down the lenses thereof are protected from coming in contact with the surface thereby avoiding scratching.

Abstract: An improved ophthalmic mounting arrangement for a pair of removable eyeglass lenses is described. The outer periphery of a lens-receiving annular liner exhibits a U-shaped channel which interlockingly engages a flat peripheral edge of an associated lens mounting rim in a rigid, unitary bifurcated frame. The two mounting rims of the frame are unobstructedly connected through an open bridge area whose lower peripheral edge is resiliently deformable out of the plane of the frame to facilitate insertion and removal of the lenses.