A manufacturing process of a leather eyeglasses frame and eyeglasses frame obtained with such a process is disclosed. An eyeglasses frame is provided wherein the frontal lens-holder frame, and possibly each of the two lateral temples, are made of two identical layers of leather, between which a thin reinforcing metal core is concealingly inserted.

Glasses frame including at least one portion of an electronic device encapsulated inside at least one element of the glasses frame, wherein at least one element of the glasses frame includes a plasticized cellulose acetate mixture, wherein the composition of the mixture provides that at least one portion of the at least one element inside which at least one portion of the electronic device is encapsulated, having at least a negligible mass percentage of at least one solvent.

The invention is related to a method of manufacturing of a composite substrate comprising an embedded electronic device by forming in a first substrate a cavity for receiving the electronic device; disposing the electronic device between the first substrate and a second substrate in said cavity; providing a solvent of cellulose acetate in-between the first substrate and the second substrate, maintaining the first substrate and the second substrate in contact together, wherein the electronic device is maintained between the first substrate and the second substrate, forming the composite substrate.

The present invention relates to a thermoplastic laminate for an eyewear, a decorative part comprising the thermoplastic laminate and a preparation process therefor. In particular, during the preparation of the laminate, a high frequency welding machine is used for bonding thermoplastic layers. The present invention uses a high frequency welding machine for the instant welding of the thermoplastic layers. Good bonding strength exists between different layers. Further, the patterns of the core layer are intact, and have high-definition images. The patterns are located in the core layer, not affected by external environmental factors, and not easily abraded. Further, multiple surfaces of the part for an eyewear have patterns, increasing the beautiful appearance of the part for an eyewear, and meeting the requirements of customers to the largest extent.

A removable layer is disclosed for covering an eyewear. The eyewear has an eyewear pigment. The removable layer comprises a scratch off layer covering the eyewear. The scratch off layer has a layer pigment. The scratch off layer is selectively removed from the eyewear for defining a visual image with the eyewear pigment relative to the layer pigment.

A part having at least two portions thereof secured to one another, yet moveable with respect to one another, includes a homogeneous first portion and a homogeneous second portion, wherein a portion of the first portion extends through the second portion, and is secured therein. The part can be configured as a hinge, a chain, etc., wherein the first part includes a pin extending therefrom including a second portion having an enlarged width with respect to the smallest width of a first portion thereof, which is received within a bore in the second portion, wherein the bore includes a second portion having a width greater than the smallest width of a first portion thereof, and the second portion of the pin is received within the second portion of the bore to secure the first part to the second part, but allow movement therebetween. Using additive manufacturing techniques, the first part and second part are formed simultaneously.

The present invention relates to a thermoplastic laminate for an eyewear, a decorative part comprising the thermoplastic laminate and a preparation process therefore. In particular, during the preparation of the laminate, a high frequency welding machine is used for bonding thermoplastic layers. The present invention uses a high frequency welding machine for the instant welding of the thermoplastic layers. Good bonding strength exists between different layers. Further, the patterns of the core layer are intact, and have high-definition images. The patterns are located in the core layer, not affected by external environmental factors, and not easily abraded. Further, multiple surfaces of the part for an eyewear have patterns, increasing the beautiful appearance of the part for an eyewear, and meeting the requirements of customers to the largest extent.

Provided herein are methods of preparing eyewear products made of a cellulose ester, a nylon or a polyester by simple and inexpensive single-nozzle or multi-nozzle 3D printers, wherein the eyewear products have a continuous range of colors or a gradual color change. Also provided herein are eyewear products made of a cellulose ester, a nylon or a polyester prepared by the methods disclosed herein.

A composite sheet material is provided. The composite sheet material includes a rigid portion that defines an opening. The composite sheet material further includes a flexible material received within the opening and adapted to attach with the rigid portion to form a flexible portion of the sheet material.

The disclosed technology describes methods for the selection, design and production of custom-fit eyeglasses, using a 3D printer. Embodiments include an eye examination and biometric measurements of a patient. The data can be used to produce custom-fit eyeglass frames. Eyeglass selection is facilitated by the display of a selection of various frames in both digital and physical form. A 3D version of the patient's head may be created from digital images, which can be used to produce a final version of the eyeglass frame. Lens dimensions may be traced and the trace used to modify the eyeglass frame. Half of an eyeglass frame may be generated, from which a mirror image is created, and a final frame produced from the resulting image. Also disclosed is an electronic device system which receives, processes and transmits data for the production of custom-fit eyeglass frames.