Disclosed is a 3D printed eyewear frame having an integrated hinge. Advantageously, the integrated hinge assembly is a crossed spring hinge. Methods of manufacturing a 3D printed eyewear frame are likewise provided.

An eyeglass frame includes a frame, temples rotatably attached to the frame, and eyeglass lenses attached to the frame. Each of the temples includes a temple core and a temple cover and forms a clearance between the temple core and the temple cover.

An eyewear system including eyeglasses and a case, the eyeglasses having a first lens, a second lens, and a bendable bridge disposed between the first lens and second lens, the bendable bridge having a spring providing a spring force when the bridge is bent from a rest position, the eyeglasses being adapted to move from a wearable configuration in which the first and second lens do not overlap to a stored configuration in which the first and second lenses at least partially overlap, the bendable bridge being bent from its rest position in the stored configuration, the case having an opening through which the eyeglasses pass during insertion and guides sized and configured with respect to the eyeglasses to engage and fold the eyeglasses against spring force of the bridge to the stored configuration during insertion of the eyeglasses through the opening and into the case.

There is provided an assembly sized to fit over the lens of a pair of metal eyeglasses wherein the assembly is composed of one rigid material and one flexible material. The assembly is installed over a pair of existing eyeglasses to enhance comfort. The assembly also provides an adjustable nose pad that is composed of a rubber and creates a comfortable brow bar for the forehead of the wearer such that no rigid metal frame parts impinge upon the wearer.

An energy dispersion mechanism can be integrated into the eyewear design to incorporate a more resilient lens holding structure that can disperse the energy received during an impact and retain the lens in place. The energy dispersion mechanism comprises an impact dispersing material seated within a groove of a first frame portion, the impact dispersing material extending beyond the first frame portion to form a nose bridge which joins the first frame portion to a second frame portion; and the impact dispersing material is seated within a groove of a second frame portion. The impact dispersing material may be overmoulded on the eyewear to allow efficient manufacturing.

The eyewear material is an eyewear material containing thermoplastic polyurethane. The eyewear material has a tan δ peak at both less than 0° C. and 0° C. or more and 70° C. or less observed in dynamic viscoelasticity measurement in tensile mode under the measurement conditions of a temperature increase speed of 5° C./min and a measurement frequency of 10 Hz.

The present invention discloses a floatable eyeglasses structure. It has an overall density less than or equal to a density of the water and comprises an eyeglasses frame and two temples. Each of the two temples comprises a front temple hinged to the eyeglasses frame, a rear temple and a sealing ring. The front temple or the rear temple has a slot, and the other one has an insertion block for correspondingly inserting into the slot. The sealing ring is further provided between the slot and the insertion block to form a sealed hollow cavity therebetween.

Eyeglasses with replaceable temples, and exemplary mechanisms to attach a frame-connected portion to a replaceable temple portion, are presented. An eyeglass frame can be attached to a hinged metal piece. The hinged metal piece can have a front solid portion and a rear bezel, including a spring and mesa portion. The spring and mesa portion can include a resilient spring material and an upwardly protruding mesa, and can be inserted into a cavity in a temple piece, and locked into place. By providing numerous temple pieces having essentially the same cavity dimensions, the eyeglasses can be used with an assortment of interchangeable temple pieces, which can be changed at will, effectively giving a wearer many looks and styles from the same basic frame, with the same lenses.

Disclosed herein is a process to modify a pair of eyeglasses having a first color to produce a pair of modified eyeglasses having at least the portion of the frame comprising a second color. A kit to modify a pair of eyeglasses is also disclosed.

This patent application relates to spectacles or spectacle frames with intertwining helix joints and a nose pad portion to facilitate an interchanging of lenses of the spectacles. The helix joint allows the temples to move into a folded position. The nose pad portion provides an access portion for detaching and/or attaching the lenses.