Systems, articles, and methods for integrating holographic optical elements with eyeglass lenses

Patent metadata

Field	Value
Publication number	US-10705342-B2
Application number	US-201715796209-A
Country	US
Kind code	B2
Filing date	Oct 27, 2017
Priority date	Sep 4, 2015
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

Systems, articles, and methods that integrate photopolymer film with eyeglass lenses are described. One or more hologram(s) may be recorded into/onto the photopolymer film to enable the lens to be used as a transparent holographic combiner in a wearable heads-up display employing an image source, such as a microdisplay or a scanning laser projector. The methods of integrating photopolymer film with eyeglass lenses include: positioning photopolymer film in a lens mold and casting the lens around the photopolymer film; sandwiching photopolymer film in between two portions of a lens; applying photopolymer film to a concave surface of a lens; and/or affixing a planar carrier (with photopolymer film thereon) to two points across a length of a concave surface of a lens. Respective lenses manufactured/adapted by each of these processes are also described.

First claim

The invention claimed is:

1. A method of manufacturing a lens for use in a wearable heads-up display, the method comprising:
providing a front half portion of a lens having a curvature;
providing a rear half portion of the lens having a curvature;
recording a hologram into a photopolymer film while the photopolymer film is planar;
applying an optical adhesive to at least one surface selected from a group consisting of: a surface of the front half portion of the lens, a surface of the rear half portion of the lens, and a surface of the photopolymer film;
positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens;
pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween, wherein the hologram in the photopolymer film compensates for at least one optical effect introduced by at least one of the curvature of the front half portion of the lens and/or the curvature of the rear half portion of the lens; and
applying an eyeglass prescription to at least one of the front half portion of the lens and/or the rear half portion of the lens after pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween, wherein the hologram in the photopolymer film further compensates for the eyeglass prescription applied to at least one of the front half portion of the lens and/or the rear half portion of the lens after pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween.

2. The method of claim 1 , further comprising:
applying a curvature to the photopolymer film before positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens, wherein the hologram in the photopolymer film further compensates for the curvature applied to the photopolymer film before positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens.

3. The method of claim 1 wherein pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween includes applying a curvature to the photopolymer film, and wherein the hologram in the photopolymer film further compensates for the curvature applied to the photopolymer film during the pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween.

4. A lens for use in a wearable heads-up display, the lens prepared by a process comprising the acts of:
providing a front half portion of a lens having a curvature;
providing a rear half portion of the lens having a curvature;
recording a hologram into a photopolymer film while the photopolymer film is planar;
applying an optical adhesive to at least one surface selected from a group consisting of: a surface of the front half portion of the lens, a surface of a rear half portion of the lens, and a surface of the photopolymer film;
positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens;
pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween, wherein the hologram in the photopolymer film compensates for at least one optical effect introduced by at least one of the curvature of the front half portion of the lens and/or the curvature of the rear half portion of the lens; and
applying an eyeglass prescription to at least one of the front half portion of the lens and/or the rear half portion of the lens after pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween, wherein the hologram in the photopolymer film further compensates for the eyeglass prescription applied to at least one of the front half portion of the lens and/or the rear half portion of the lens after pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween.

5. A method of manufacturing a lens for use in a wearable heads-up display, the method comprising:
providing a front half portion of a lens having a curvature;
providing a rear half portion of the lens having a curvature;
recording a hologram into a photopolymer film while the photopolymer film is planar;
applying an optical adhesive to at least one surface selected from a group consisting of: a surface of the front half portion of the lens, a surface of the rear half portion of the lens, and a surface of the photopolymer film;
positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens; and
pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween, wherein the hologram in the photopolymer film compensates for at least one optical effect introduced by at least one of the curvature of the front half portion of the lens and/or the curvature of the rear half portion of the lens, and wherein pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween includes applying a curvature to the photopolymer film, and wherein the hologram in the photopolymer film further compensates for the curvature applied to the photopolymer film during the pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween.

6. The method of claim 5 , further comprising:
applying a curvature to the photopolymer film before positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens, wherein the hologram in the photopolymer film further compensates for the curvature applied to the photopolymer film before positioning the photopolymer film in between the front half portion of the lens and the rear half portion of the lens.

7. The method of claim 5 , further comprising:
applying an eyeglass prescription to at least one of the front half portion of the lens and/or the rear half portion of the lens after pressing the front half portion of the lens and the rear half portion of the lens together with the photopolymer film sandwiched therebetween.

Assignees

• Thalmic Labs Inc
• North Inc

Inventors

• Holland Lloyd Frederick
• Bailey Matthew

Classifications

• B29D11/00009

  Production of simple or compound lenses · CPC title

• B29D11/00317

  Production of lenses with markings or patterns · CPC title

• B29D11/0073

  Optical laminates · CPC title

• B29D11/00461

  Adjusting the refractive index, e.g. after implanting · CPC title

• G02B2027/0109

  comprising details concerning the making of holograms · CPC title