Augmented reality eyewear displays with insertable prescription lenses

Patent metadata

Field	Value
Publication number	US-2024402512-A1
Application number	US-202318205339-A
Country	US
Kind code	A1
Filing date	Jun 2, 2023
Priority date	Jun 2, 2023
Publication date	Dec 5, 2024
Grant date	—

Abstract

An eyewear display includes a frame comprising two lens rims and a nose bridge, a first lens rim of the two lens rims holding a lens stack including a first lens (e.g., a world-side lens) and a waveguide. A detachable rim piece is attached to the first lens rim, and, upon being detached from the first lens rim, the detachable rim piece exposes a loading cavity housing a lens retention component. The lens retention component is removable from the loading cavity to insert a second lens with a vision correction prescription within the lens stack of the first lens rim. The lens retention component is then re-inserted into the loading cavity to fix the second lens (e.g., an eye-side lens) into the lens stack of the first lens rim. The detachable rim piece is then re-attached to cover the loading cavity and the lens retention component.

First claim

What is claimed is:

1 . An eyewear display comprising:
a frame comprising two lens rims and a nose bridge, at least a first lens rim of the two lens rims to hold a stack comprising a first lens and a waveguide; a detachable rim piece attached to the first lens rim, the detachable rim piece covering a loading cavity housing a lens retention component; and the lens retention component to fix a second lens within the first lens rim when the lens retention component is secured to the first lens rim within the loading cavity.

2 . The eyewear display of claim 1 , wherein the second lens comprises a curvature corresponding to a vision correction prescription.

3 . The eyewear display of claim 1 , the lens retention component to fix the second lens on an opposite side of the waveguide as the first lens, wherein the first lens is a world-side lens and the second lens is an eye-side lens.

4 . The eyewear display of claim 1 , wherein the detachable rim piece is a detachable nose piece adjacent to the nose bridge.

5 . The eyewear display of claim 1 , wherein the loading cavity comprises a hole in the first lens rim.

6 . The eyewear display of claim 5 , wherein the lens retention component comprises a retaining clip.

7 . The eyewear display of claim 6 , wherein the retaining clip comprises two ends, which when placed in the hole, lock the retaining clip in the loading cavity.

8 . The eyewear display of claim 7 , wherein the retaining clip is configured to fix the second lens within the first lens rim by applying a force to the second lens, the force caused by an elastic deformation of the retaining clip.

9 . The eyewear display of claim 1 , further comprising a seal applied around an inner perimeter of the first lens rim.

10 . The eyewear display of claim 1 , wherein the frame comprises a front frame component and a rear frame component attached to one another forming a carrier cavity, wherein a world-side carrier and an eye-side carrier are at least partially housed within the carrier cavity, wherein the waveguide is positioned between the eye-side carrier and the world-side carrier and the first lens is positioned on an opposite side of the world-side carrier as the waveguide.

11 . A method comprising:
removing a detachable rim piece from at least one lens rim of two lens rims of an eyewear display to expose a loading cavity, wherein the at least one lens rim holds a stack comprising a first lens and a waveguide; inserting a second lens within the at least one lens rim, wherein the second lens comprises a curvature corresponding to a vision correction prescription; positioning a lens retention component in the loading cavity to secure the second lens within the at least one lens rim; and re-attaching the detachable rim piece to the at least one lens rim over the lens retention component to cover the loading cavity.

12 . The method of claim 11 , further comprising, after removing the detachable rim piece, removing the lens retention component from the loading cavity.

13 . The method of claim 12 , further comprising, after removing the lens retention component from the loading cavity, removing a placeholder lens prior to inserting the second lens within the at least one lens rim.

14 . The method of claim 12 , wherein the lens retention component is a retaining clip, wherein the positioning the lens retention component in the loading cavity to secure the second lens within the at least one lens rim comprises placing two ends of the retaining clip in an opening in the loading cavity to lock the second lens in the at least one lens rim.

15 . The method of claim 11 , further comprising performing the method at a second lens rim of the two lens rims to secure an additional second lens in the second lens rim, the additional second lens comprising a curvature corresponding to a vision correction prescription.

16 . An eyewear display comprising:
a frame comprising two lens rims and a nose bridge, at least a first lens rim of the two lens rims to hold a stack comprising a first lens and a waveguide, wherein the frame comprises a front frame component and a rear frame component attached to one another forming a carrier cavity, wherein a first carrier is at least partially housed within the carrier cavity around the at least first lens rim; a pressure sensitive adhesive (PSA) applied to the first carrier, the PSA covered by a protective liner comprising a protective liner tab; and a detachable rim piece attached to the first lens rim, the detachable rim piece covering a cavity in which the protective liner tab is positioned.

17 . The eyewear display of claim 16 , wherein the PSA is an ultraviolet (UC) curable PSA.

18 . The eyewear display of claim 16 , further comprising a placeholder lens positioned adjacent to the protective liner in the first lens rim.

19 . A method comprising:
removing a detachable rim piece from at least one lens rim of an eyewear display to expose a protective liner tab, wherein the at least one lens rim holds a lens stack comprising a first lens and a waveguide; removing a protective liner by pulling on the protective liner tab to expose a pressure sensitive adhesive (PSA) layer applied to a first carrier around an inner perimeter of the at least one lens rim; inserting a second lens into the at least one lens rim and pressing the second lens into the PSA layer to adhere the second lens to the first carrier, wherein the second lens comprises a curvature corresponding to a vision correction prescription; and re-attaching the detachable rim piece to the at least one lens rim over the second lens.

20 . The method of claim 19 , wherein the PSA layer is an ultraviolet (UV) curable PSA layer, the method further comprising:
prior to inserting the second lens into the at least one lens rim and pressing the second lens into the PSA layer to adhere the second lens to the first carrier, curing the UV curable PSA layer under UV light for a specified duration.

Assignees

• Google Llc

Inventors

• Nguyen Bach
• Zaman Nabila
• Gudgeon Geoffrey
• Moore Joshua
• Schabacker Charles R

Classifications

• G02C5/126

  exchangeable or otherwise fitted to the shape of the nose · CPC title

• G02C9/04

  by fitting over or clamping on · CPC title

• G02C2200/06

  Locking elements · CPC title

• G02C11/10

  Electronic devices other than hearing aids · CPC title

• G02C1/10

  Special mounting grooves in the rim or on the lens · CPC title