# US 2025/0147337 A1 · Multi-material eyewear device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0147337 A1 - Document ID: US20250147337A1 - Status: Published application - Kind: A1 - Application number: 18/500,601 - Filed: 2023-11-02 - Published: 2025-05-08 - Earliest claimed: 2023-11-02 - Assignees: Google Inc. - Applicants: Google LLC - Inventors: Geoffrey Gudgeon; Joshua Moore - Web page: https://patentgrep.com/patent/US20250147337A1 ## CPC - G02C 5/008: {Spectacles frames characterized by their material, material structure and material properties} - G02B 27/0172: {characterised by optical features} - G02B 27/0176: {characterised by mechanical features} - G02C 11/10: {Electronic devices other than hearing aids} - G02B 2027/0169: {Supporting or connecting means other than the external walls} - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A multi-material eyewear device that can be utilized in an augmented reality (AR) or mixed reality (MR) eyewear display system includes an upper portion composed of a different material from one or more lower portions. The upper portion has a higher stiffness or stiffness-to-mass ratio than the lower portions, is less RF-permeable than the lower portions, and/or has a higher thermal conductivity than the lower portions. One or more antennas bonded to, housed in, or coextensive with the lower portions operate with high performance and efficiency due to the lower portions having higher RF-permeability than the upper portions, while the multi-material eyewear device maintains a high overall stiffness or stiffness-to-mass ratio due to the stronger material of the upper portion. ## Claims ### Claim 1 An eyewear device comprising: a lens element; and a support frame comprising: an upper portion spanning at least one of a nose bridge and at least half of a length of the lens element; and a lower portion associated with an antenna, wherein the upper portion has a higher stiffness than the lower portion, wherein the lens element is located between the upper portion and the lower portion. ### Claim 2 (depends on 1) The eyewear device of claim 1, wherein the upper portion is less RF-permeable than the lower portion. ### Claim 3 (depends on 1) The eyewear device of claim 1, wherein the upper portion is primarily composed of a first material with a first permittivity or conductivity and the lower portion is primarily composed of a second material with a second permittivity or conductivity higher than the first permittivity or conductivity. ### Claim 4 (depends on 1) The eyewear device of claim 1, wherein the upper portion is primarily composed of one or more of a metal, a metal alloy, and carbon fiber and the lower portion is primarily composed of one or more of Polytetrafluoroethylene, foam, plastics, ceramics, and glass. ### Claim 5 (depends on 1) The eyewear device of claim 1, wherein the upper portion has a higher Young's Modulus or Shear Modulus than the lower portion. ### Claim 6 (depends on 1) The eyewear device of claim 1, wherein the upper portion has a higher thermal conductivity than the lower portion. ### Claim 7 (depends on 1) The eyewear device of claim 1, wherein the lower portion is secured to the upper portion. ### Claim 8 (depends on 1) The eyewear device of claim 1, wherein the lens element includes a waveguide and the eyewear device is included in an augmented reality (AR) eyewear display system. ### Claim 9 An eyewear device comprising: a lens element; and a support frame, including: an upper portion spanning at least one of a nose bridge and at least half of a length of the lens element; and a lower portion associated with an antenna, wherein the upper portion is less RF-permeable than the lower portion, wherein the lens element is located between the upper portion and the lower portion. ### Claim 10 (depends on 9) The eyewear device of claim 9, wherein the upper portion is primarily composed of a first material with a first permittivity or conductivity and the lower portion is primarily composed of a second material with a second permittivity or conductivity higher than the first permittivity or conductivity. ### Claim 11 (depends on 9) The eyewear device of claim 9, wherein the upper portion is primarily composed of one or more of a metal, a metal alloy, and carbon fiber and the lower portion is primarily composed of one or more of Polytetrafluoroethylene, foam, plastics, ceramics, and glass. ### Claim 12 (depends on 9) The eyewear device of claim 9, wherein the upper portion has a higher stiffness or stiffness-to-mass ratio than the lower portion. ### Claim 13 (depends on 9) The eyewear device of claim 9, wherein the upper portion has a higher Young's Modulus or Shear Modulus than the lower portion. ### Claim 14 (depends on 9) The eyewear device of claim 9, wherein the upper portion has a higher thermal conductivity than the lower portion. ### Claim 15 An eyewear device comprising: a lens element; and a support frame, including: an upper portion spanning at least one of a nose bridge and at least half of a length of the lens element; and a lower portion associated with an antenna, wherein the upper portion has a higher thermal conductivity than the lower portion, wherein the lens element is located between the upper portion and the lower portion. ### Claim 16 (depends on 15) The eyewear device of claim 15, wherein the upper portion is less RF-permeable than the lower portion. ### Claim 17 (depends on 15) The eyewear device of claim 15, wherein the upper portion is primarily composed of a first material with a first permittivity or conductivity and the lower portion is primarily composed of a second material with a second permittivity or conductivity higher than the first permittivity or conductivity. ### Claim 18 (depends on 15) The eyewear device of claim 15, wherein the upper portion is primarily composed of one or more of a metal, a metal alloy, and carbon fiber and the lower portion is primarily composed of one or more of Polytetrafluoroethylene, foam, plastics, ceramics, and glass. ### Claim 19 (depends on 15) The eyewear device of claim 15, wherein the upper portion has a higher stiffness or stiffness-to-mass ratio than the lower portion. ### Claim 20 (depends on 15) The eyewear device of claim 15, wherein the upper portion has a higher Young's Modulus or Shear Modulus than the lower portion.