Abstract: Embodiments of eyeglasses are provided. The glasses comprise a frame comprising a first and second lens connected by a bridge. Temple pieces extend from either side of the frame. The hinge or hinge point between the temple pieces and the frame can be within the plane of the glasses allowing the temple pieces to fold flat or near flat against the frame. The thickness of the glasses can be less than about 3.5 mm (e.g., 2.6 mm) in a folded configuration.

Abstract: A folding frame for eyeglasses, the frame being structured to fold into a W-shape and thereby, dispose a frame front left half in parallel with a frame front right half, both left and right halves being disposed between respective left and right temple pieces. A first catch holds the left and right halves in parallel at a stored configuration, and a second catch holds the temple pieces in parallel at the stored configuration. An enlarged grip area is sometimes provided in at least one temple piece to facilitate one-handed orienting of the fully-deployed frame in registration on a user's head. Certain embodiments are configured to permit a user to cause a one-handed release and subsequent automatic frame deployment from a stored configuration to a first configuration wherein the frame front left and right halves are disposed in a common plane, and the temple pieces are disposed normal to that plane.

Abstract: A spectacles device, that can be reversibly transformed into a bracelet, includes a nose bridge, two spectacles lenses and two temple systems. Each temple system includes an inner temple and an outer temple, the inner temple being made of a shape memory material with an initial curved shape and the outer temple being made of at least one material capable of elastic deformation. The outer temple includes a first cavity, extending longitudinally, capable of allowing the inner temple to slide inside the outer temple. The outer temple also includes a second cavity capable of receiving the nose bridge and the spectacles lenses. In addition, each of the spectacle lenses is respectively attached to one end of the inner temples by a first connecting element. The nose bridge is attached to each inner temple by at least one second connecting element.

Abstract: Features are disclosed relating to an article such as eyewear customized to individual wearer parameters (e.g., measurements, preferences, etc.), and to systems and methods for customizing eyewear to individual wearer parameters. The system includes an input for receiving data representative of a three dimensional configuration of a portion of a wearer's face and an input for receiving data representative of a desired position where the wearer would like an eyewear frame to reside on the wearer's face. One system also includes a processor for determining a change in configuration of an eyewear component blank to allow the eyewear frame to reside in the desired position, and an eyewear component modifier for modifying the eyewear component blank so that the frame will reside in the desired position.

Abstract: A pair of glasses is provided. The glasses include a first lens, a second lens, a first temple arm that is disposed close to the first lens, and a second temple arm that is disposed close to the second lens. The glasses further include a position adjusting portion that is mounted on the first lens and the second lens. The position adjusting portion is configured to adjust an overlapping area of the first lens and the second lens. The glasses further include a first display screen on a first temple arm. The first temple arm and the second temple arm may be bent in extension directions of the temple arms, so that a tail end of the first temple arm overlaps a tail end of the second temple arm.

Abstract: Disclosed is a frame for glasses with a front-piece, two temples connected each to the front-piece by a hinge which allows the rotation of the temples from a working position which is substantially perpendicular to the front-piece, when wearing the glasses, up to a rest position which is substantially parallel to the front-piece, when putting the glasses away. The front-piece includes two rims for supporting the lenses, and possibly a bridge connecting the rims. A pivot allows one of the temples or overturning temple and the relative hinge to rotate about an overturning axis substantially parallel to the front-piece. The overturning axis has a set inclination with respect to a straight line passing through the two centers of the rims, the inclination having a value that ranges from 2.5° to 25° and preferably from 5° to 25°.

Abstract: An eyeglass apparatus comprises left and right eyeglass portions and a link. The link is configured to permit the eyeglass apparatus to transition between an extended configuration and a collapsed configuration. In the extended configuration, the eyeglass apparatus is adapted to be worn by a user in a conventional eyeglass wearing orientation. In the collapsed configuration: an inwardly facing lens face of one of left and right lenses faces an outwardly facing lens face of the other of the left and right lenses; a medial edge portion of the left lens is closer to a medial edge portion of the right lens than to a lateral edge portion of the right lens; and the lateral edge portion of the left lens is closer to the lateral edge portion of the right lens than to the medial edge portion of the right lens.

Abstract: Eyeglasses with legs bendable in multiple angles, comprise a main glasses leg, a secondary glasses leg, an elastic body, a slider, and a connecting member. The secondary glasses leg may be hinged on the tail of the main glasses leg in such a manner that the opening angle may be locked, so that the user can conveniently and optionally open or change the bending angle of the tail of the glasses legs, so as to achieve optimal adaption for various occasions.

Abstract: According to an exemplary embodiment, a loupe attachment for glasses may be provided. The loupe attachment may include a loupe and a number of optical devices such as mirrors or prisms. The loupe and the optical devices may be connected to eyeglasses and be positioned as desired. The loupe and the optical device may be connected to the glasses on number of locations and the relative position of the loupe and optical devices in the trajectory of light may be modified. According to a second exemplary embodiment, loupes may be rigidly connected to eyeglasses and a number of optical elements may be rigidly or rotatably connected to the front end of the loupe so as to reflect the field of view situated at an angle from the loupe viewing direction.

Abstract: An eyeglass apparatus comprises left and right eyeglass portions and a link. The link is configured to permit the eyeglass apparatus to transition between an extended configuration and a collapsed configuration. In the extended configuration, the eyeglass apparatus is adapted to be worn by a user in a conventional eyeglass wearing orientation. In the collapsed configuration: an inwardly facing lens face of one of left and right lenses faces an outwardly facing lens face of the other of the left and right lenses; a medial edge portion of the left lens is closer to a medial edge portion of the right lens than to a lateral edge portion of the right lens; and the lateral edge portion of the left lens is closer to the lateral edge portion of the right lens than to the medial edge portion of the right lens.

Abstract: An eyeglass apparatus comprises left and right eyeglass portions and a link. The link is configured to permit the eyeglass apparatus to transition between an extended configuration and a collapsed configuration. In the extended configuration, the eyeglass apparatus is adapted to be worn by a user in a conventional eyeglass wearing orientation. In the collapsed configuration: an inwardly facing lens face of one of left and right lenses faces an outwardly facing lens face of the other of the left and right lenses; a medial edge portion of the left lens is closer to a medial edge portion of the right lens than to a lateral edge portion of the right lens; and the lateral edge portion of the left lens is closer to the lateral edge portion of the right lens than to the medial edge portion of the right lens.

Abstract: Eyeglasses include a front with a pair of lenses and a first arm and a second arm, which are articulated to sides of the front via respective hinges and are able to turn between an extended position and a folded position where they are set the first behind and the second in front of the front. A hinge for articulation of the second arm is connected to the front in such a way that it can turn through 180° about an axis orthogonal to an axis of the hinge. The arms may moreover incorporate a front lighting system and/or a voice-recognition sensor.

Abstract: An eyewear system including eyeglasses having first and second lenses; first and second nose pads; and a bridge operably connecting the first and second lenses, the bridge being bendable from a bridge rest position to permit relative movement between the first and second nose pads and providing a bridge pinch force of 50 g or less between the nose pads when the nose pads are moved 7 mm or less from the bridge rest position.

Abstract: The present disclosure refers to eyeglasses that may be worn in alternate forms. The eyeglasses include an eyepiece having a pair of lenses that may be positioned in front of a wear's eyes by an attachment assembly, which may be deformed or adjusted to secure the lenses to the wear's wrist. The design of the attachment assembly may vary according to specific needs. In one embodiment, the attachment assembly comprises temples having temple tips. The temples may be deformed to serve alternating purposes—placing the eyepiece in front of the eyes and securing the eye piece around the wear's wrist, or other body parts. The eyepiece may also include a bendable bridge that connects the two lenses. The design of the bridge may facilitate the transition of the eyepiece from one position to the other. The eyeglasses are suitable for individuals that wear eyeglasses periodically and particularly in outdoor settings.

Abstract: A pair of reduced profile wrap-around glasses (100) including a pair of lenses (102), a pair of support arms (112), and a pair of frames including a right frame (104a) and a left frame (104b) forming at least one locking hinge (106) at the nose bridge. The locking hinge is manually operable to pivotally hinge the pair of frames between two states: wrap-around wearable and reduced profile. The locking hinge comprises a central axle (114) and one ledge (110) formed on the medial side of one of the right frame and the left frame, a front slit (108a) and a back slit (108b) formed on the medial side of the other one of the right frame and the left frame, wherein said ledge pivotally engage with said front slit in the wrap-around wearable state and pivotally engage with said back slit in the reduced profile state. In an alternative embodiment, the locking hinge may comprise one slit and two ledges.

Abstract: A foldable eyeglasses includes a first lens, a second lens and a foldable structure. The second lens is arranged correspondingly to the first lens; the foldable structure is installed between the first and second lenses; the foldable structure includes a first and a second securement stands, a swivel member and a universal joint. The first and second securement stands are attached to the first and second lenses respectively; the swivel member is pivotally attached to the first securement stand; the universal joint is constructed by a turning head portion extended from the swivel member and a receiving slot provided on the second securement stand; the turning head portion is pivotally attached to the receiving slot. Accordingly, the eyeglasses can have a significantly reduced folded size for storage and portability.

Abstract: The eyeglass frame is an improved eyeglass frame with dislocating joints. The dislocating joints prevent damage to the eyeglass frame when external forces are applied to the structure and allow for the frame to be disconnected, if so desired. The joints dislocate without completely separating from the other components of the eyeglass frame or becoming damaged, and the joints can be quickly reconnected without tools.

Abstract: An article of eyewear includes an elongated bi-stable spring, two lenses disposed along a side edge of the elongated bi-stable spring in a spaced apart relationship with each other along the side edge, a flexible covering encasing the elongated bi-stable spring and the two lenses, and an arcuate shape defined between the two lenses.

Abstract: An eyewear includes a left unit and a right unit coupled with the left unit through a bridge. Each of the left unit and the right unit includes a lens rim and a temple coupled with a side of the lens rim through a first hinge. The temple includes a first temple part and a second temple part coupled with each other via a second hinge. The first temple part and the second temple part are shaped and sized to form an enclosure when the second temple part is folded against the first temple part. The bridge includes a coupling member configured to couple a first bridge part of the bridge with a second bridge part of the bridge when the eyewear is in an unfolded position. Upon further folding of the right unit against the left unit, the enclosure is formed by the temples enclosing the lens rims.

Abstract: Eyewear is provided. The eyewear includes a left unit and a right unit coupled with the left unit through a first hinge structure. The left unit or the right unit includes a lens rim and a temple coupled with a side of the lens rim through a second hinge structure. The temple has a first temple part and a second temple part coupled with each other via a third hinge structure. The first temple part and the second temple part of the temple are shaped and sized to form an enclosure for at least partially or alternatively fully enclosing the lens rim and or lens when the second temple part is folded against the first temple part.

Abstract: A pair of foldable eyeglasses may have a number of hinged connections allowing for the folding of the individual components in a number of ways. The eyeglasses may also be folded into a magnifier. The eyeglasses may also be folded up entirely for transport or storage purposes. The eyeglasses have lenses with a frame and temple pieces extending from the frame. When folded, the eyeglasses take advantage of connectors on each the outer edge of the frame and the outer edge of the temple pieces. These connectors permit the eyeglasses to be folded into the magnifier form, as well as provide stability and protection when folded. In other embodiments, magnets or similar connection mechanisms are used to hold the eyeglasses in a storage or magnifying position(s).

Abstract: An eyewear system and method for wearing by a user is provided. The eyewear system includes a pair of glasses and a pair of temples, wherein the temples are configured to reach only up till temple bone of its wearer. Further, the eyewear system includes a frame for supporting the pair of glasses and the pair of temples. The frame of the eyewear system further includes a tensioner at its nose bridge. The tensioner is designed to pressurize the frame of the eyewear system to attain a folded position. The pressure exerted on the frame of the eyewear results in a grip of the eyewear system on facial structure of the user who is wearing the eyewear system. In addition, the pair of temples of the eyewear system includes cushions for comforting the user from the pressure exerted by the tensioner on the frame of the eyewear system.

Abstract: A frame for eyeglasses comprising a front frame portion adapted to support lenses and first and second side portions extending from opposing sides of the front frame portion and configured to end at a user's temples so as to be supported by the user's temples when worn, without being supported by the user's ears.

Abstract: An eyeglass apparatus comprises first and second eyeglass portions, each having a connector portion and a lens portion. The eyeglass apparatus is configured to transition between stowed and extended configurations. When the eyeglass apparatus is in the stowed configuration, the lens portions overlie one another. When the eyeglass apparatus is in the extended configuration, the lens portions are in a non-overlying configuration.

Abstract: An eyewear includes a left unit and a right unit coupled with the left unit through a bridge. Each of the left unit and the right unit includes a lens rim and a temple coupled with a side of the lens rim through a first hinge. The temple includes a first temple part and a second temple part coupled with each other via a second hinge. The first temple part and the second temple part are shaped and sized to form an enclosure when the second temple part is folded against the first temple part. The bridge includes a coupling member configured to couple a first bridge part of the bridge with a second bridge part of the bridge when the eyewear is in an unfolded position. Upon further folding of the right unit against the left unit, the enclosure is formed by the temples enclosing the lens rims.

Abstract: A foldable eyeglasses includes a first lens, a second lens and a foldable structure. The second lens is arranged correspondingly to the first lens; the foldable structure is installed between the first and second lenses; the foldable structure includes a first and a second securement stands, a swivel member and a universal joint. The first and second securement stands are attached to the first and second lenses respectively; the swivel member is pivotally attached to the first securement stand; the universal joint is constructed by a turning head portion extended from the swivel member and a receiving slot provided on the second securement stand; the turning head portion is pivotally attached to the receiving slot. Accordingly, the eyeglasses can have a significantly reduced folded size for storage and portability.

Abstract: An eyeglass frame which can be suspended on a neck and rotatingly folded includes a rim structure, two temples and two connection units. The rim structure are respectively connected by the two connection units to the two temples. A teeth structure is integrally formed perpendicularly on each of the abovementioned ends of the rim structure. The lower end of each of the connection units is formed with a flange structure for engaging with a teeth structure. The upper end of each of the connection units is connected by hinge to a temple front portion. Each of the temples includes an outer temple and an inner temple respectively slidably embedded in the outer temple. The rear portions of the temples have magnets which mutually attract to form a loop structure. The rim structure can rotate upward to adapt to the contour of the face, and is thinner when folded.

Abstract: Automatically stretchable folding spectacles, comprising: a first rim, with a first lens being provided within the first rim; a second rim, with a second lens being provided within the second rim; a first leg; and a second leg, wherein the first rim and the first leg are elastically connected via a first elastic member; the second rim and second leg are elastically connected via a second elastic member; a middle beam mechanism is provided between the first rim and second rim; and a locking mechanism is provided between the first leg and the second leg, which makes the spectacles capable of keeping a folded state after the spectacles are completely folded. The wearer needs only to press the locking mechanism with one hand, and the whole spectacles will stretch naturally and exhibit an available state under the action of the tension of the elastic members.

Abstract: Collapsible eyeglasses allow the user to pivot or rotate the lenses relative to each other to reduce the overall size of the eyeglasses for storage in a collapsed configuration. The eyeglass frames with lenses could rotate relative to each other about a pivot point positioned on or about the bridge of the eyeglasses. The eyeglass frames with lenses could hinge relative to each other about a point on or about the bridge of the eyeglasses. The eyeglass frames with lenses could be separated from each other. The invention provides eyeglasses that are more easily stored, are more convenient to carry, and more convenient to use.

Abstract: A pair of eyeglasses includes a foldable structure and a pair of lens assemblies aligned with each other in a row. The foldable structure includes a first body member having a receiving chamber; a second body member aligned with the first body member and configured to rotate relative thereto; the first and second body members being secured onto adjacent sides of the pair of lens assemblies; one end of a bendable linear member including a stopping portion received within the receiving chamber and another end thereof penetrating through the second body member and attached thereto; and an elastic unit mounted onto the bendable linear member and clamped axially and elastically between inner wall of the receiving chamber and the stopping portion. Accordingly, the eyeglasses can be advantageously folded with a significantly reduced size for facilitated portability and storage.

Abstract: An eyeglass apparatus comprises first and second eyeglass portions, each having a connector portion and a lens portion. The eyeglass apparatus is configured to transition between stowed and extended configurations. When the eyeglass apparatus is in the stowed configuration, the lens portions overlie one another. When the eyeglass apparatus is in the extended configuration, the lens portions are in a non-overlying configuration.

Abstract: The present application provides eyeglasses having a frame, supporting reading or other eyeglass lenses, and an adjustable gripping nose pinch. The frame includes integrated therein a decorative spring loaded clip that allows for the attachment of the frame to clothing and objects for storage and convenience.

Abstract: Eyewear comprising a lens frame, at least one earpiece, and at least one extension element is disclosed. The extension element is moveable between a retracted position, wherein the element is partially or completely hidden behind the eyepiece, and an extended position, wherein the element is positioned below the earpiece. The earpiece may include a recess for receiving the extension element in a nested relationship when the extension element is in the retracted position.

Abstract: A pair of rotary glasses comprising a lens, a glasses leg, and a pivot element. The support portion includes a second pivot portion corresponding to the first pivotal transverse through hole. The pivot element is passed through the first pivotal transverse through hole and the second pivot portion to pivotally couple each glasses leg. With this structural design, a user can longitudinally rotate the support portion by using the pivot element as an axis towards or away from the upper edge of the lens or the glasses frame so that the folding portion of the glasses leg and the lens or the glasses frame can support the rotary glasses on a disposing surface securely. Therefore, the rotary glasses will not lose balance or topple over by a slight external force so as to prevent the lens or the glasses frame from damage.

Abstract: An eye wear system comprising a frame configured to receive at least one lens, with stems pivotably coupled to the frame, wherein stems have a first portion and a second portion, and a first, i.e. open, orientation disposed generally perpendicular to the frame, and a second, i.e. collapsed, orientation disposed generally parallel to the frame. The nose pads, which can be integrally formed with the frame, form at least part of an opening configured to receive the first portion of the stem to releasably secure the stem in the second, or collapsed, orientation.

Abstract: An eyewear assembly comprising a hollow squeeze case and eyewear sized and configurable to be stored within the squeeze case. The squeeze case may comprise two opposing ends and may present an opening therebetween when the two opposing ends are squeezed toward each other. The eyewear may comprise two lenses and a flexible nose piece extending between the two lenses. The lenses may be actuated toward each other, placing the eyewear into a folded configuration, such that the eyewear may fit within the squeeze case. The squeeze case may also comprise a hole for attachment to a key chain or lanyard.

Abstract: Eyewear is provided. The eyewear includes a left unit and a right unit coupled with the left unit through a first hinge structure. The left unit or the right unit includes a lens rim and a temple coupled with a side of the lens rim through a second hinge structure. The temple has a first temple part and a second temple part coupled with each other via a third hinge structure. The first temple part and the second temple part of the temple are shaped and sized to form an enclosure for at least partially or alternatively fully enclosing the lens rim and or lens when the second temple part is folded against the first temple part.

Abstract: A pair of eyeglasses is provided that includes a frame having hinge joints coupled to opposite ends of the frame and a pair of temple members pivotally coupled to the hinge joints. When in use, the temple members may be pivoted about a substantially horizontal axis of rotation between an extended or open position where the temple members are space apart and parallel to one other, and a folded or closed position where one member is folded over the other in an area behind the eyeglass frame.

Abstract: An eyeglass apparatus comprises first and second eyeglass portions, each having a connector portion and a lens portion. The eyeglass apparatus is configured to transition between stowed and extended configurations. When the eyeglass apparatus is in the stowed configuration, the lens portions overlie one another. When the eyeglass apparatus is in the extended configuration the lens portions are in a non-overlying configuration.

Abstract: Eyeglasses comprising a first frame and a second frame each having an inner end and an outer end. A lens is secured within each frame. A connecting member is fixedly attached to the outer end of its respective frame and has a dovetail groove therein with a magnet secured within the groove for releasably engaging a chain. A first pivotal member is fixedly attached to the inner end of the first frame while a second pivotal member is fixedly attached to the inner end of the second frame thereby permitting pivotal movements along a common longitudinal direction. At least one clip is fixedly attached to at least one connecting member for removably securing the eyeglasses to an article. Each connecting member includes a connecting magnet for releasably engaging with each other when the eyeglasses are folded closed. A chain is releasably secured within the dovetail grooves of the connecting members.

Abstract: The present invention relates to foldable eyeglasses. The foldable eyeglasses include a first frame member and a second frame member, where each frame member holds a lens, and a first hinge that connects the first and second frame members. The foldable eyeglasses also include a first temple member and a second temple member, where each includes a plurality of foldable or collapsible segments, and first and second temple member hinges, where the first temple member hinge connects the first temple member to the first frame member, and the second temple member hinge connects the second temple member to the second frame member. The first and second frame members and the first and second temple members can fold at each of the first hinge and the first and second temple member hinges, such that the foldable sunglasses can compact into a profile size similar to that of a standard credit card.

Abstract: The present invention relates to a frame for holding a sheet of material. A frame arranged to removably locate a sheet of material in a vision area, the frame having binocular lenses focused away from the vision area. A benefit of the invention is that a user is provided with binocular lenses at the point of need. The user is thus saved from the embarrassment of having to admit to requiring reading glasses they had omitted to bring.

Abstract: Photochromic compositions are disclosed comprising a polymeric material, a photochromic dye, a hydroxyphenyl triazine UV absorber and, optionally, a further light stabilizer selected from the sterically hindered amines. These systems provide a reversible photochromic effect and show improved light stabilization and color fastness.

Abstract: Automatically stretchable folding spectacles, comprising: a first rim, with a first lens being provided within the first rim; a second rim, with a second lens being provided within the second rim; a first leg; and a second leg, wherein the first rim and the first leg are elastically connected via a first elastic member; the second rim and second leg are elastically connected via a second elastic member; a middle beam mechanism is provided between the first rim and second rim; and a locking mechanism is provided between the first leg and the second leg, which makes the spectacles capable of keeping a folded state after the spectacles are completely folded. The wearer needs only to press the locking mechanism with one hand, and the whole spectacles will stretch naturally and exhibit an available state under the action of the tension of the elastic members.

Abstract: An eyeglass apparatus comprises first and second eyeglass portions, each having a connector portion and a lens portion. The eyeglass apparatus is configured to transition between stowed and extended configurations. When the eyeglass apparatus is in the stowed configuration, the lens portions overlie one another. When the eyeglass apparatus is in the extended configuration the lens portions are in a non-overlying configuration.

Abstract: The present application provides eyeglasses having a frame, supporting reading or other eyeglass lenses, and an adjustable gripping nose pinch. The frame includes integrated therein a decorative spring loaded clip that allows for the attachment of the frame to clothing and objects for storage and convenience.

Abstract: An eyewear assembly comprising a hollow squeeze case and eyewear sized and configurable to be stored within the squeeze case. The squeeze case may comprise two opposing ends and may present an opening therebetween when the two opposing ends are squeezed toward each other. The eyewear may comprise two lenses and a flexible nose piece extending between the two lenses. The lenses may be actuated toward each other, placing the eyewear into a folded configuration, such that the eyewear may fit within the squeeze case. The squeeze case may also comprise a hole for attachment to a key chain or lanyard.

Abstract: A hinge for the temples and the lens frame of glasses comprises engaging rods and bushings that are respectively formed at two sides of the lens frame and fronts ends of the temples. A spiral guiding slot and a guiding block are separately formed at an external surface of the engaging rod and at the inner surface of the bushing. The spiral guiding slots at the two sides of the lens frame have the same spiral orientation. The temples at the two sides of the lens frame are respectively slid upward and downward to be staggered in time of folding due to the cooperation of the spiral guiding slot and the guiding block. As a result, the dimension of the glasses is reduced, which conduces to convenient storage for users.

Abstract: An articulated spectacle frame with wire assembled components, the components being able to slide and fold back past each other, when the spectacles are not being worn, characterized by using two lens rims (10, 20) for supporting lenses (1, 2) and being hinged together at their inner ends (13, 22a), and equipped with a joining slot (18, 28) on their outside, for orthogonal housing of components coaxial to each other and forming each of two temples (A), all these components being linked together by a wire (70) passing into each of the components tensioning and connecting them in succession, when the two lens rims are located on the same plane in order to use them, whilst the wire slackens allowing disconnection of the temple components and the loosening of these from the components supporting the lenses, when the rims are rotated against each other.

Abstract: A collapsible eyeglass structure includes a frame bilaterally provided with two temples. The frame has two ends, each having an inner side formed with a through hole. Each through hole has an entrance end with a beveled rim and an opposite end connected to an inwardly expanding receiving space. Each receiving space has a predetermined shape and an upper wall formed with plural teeth. Each temple has a pivotal connecting portion outwardly extended with a post. Each post has a convex tip and is notched so as to be pushed resiliently into the corresponding through hole of the frame. Each post further has an upper periphery formed with a tooth. When the posts are pushed into the receiving spaces in the frame respectively, the tooth of each post meshes with the corresponding teeth in the corresponding receiving space to allow angular adjustment or downward collapse of the temples.