Methods and systems for augmented reality

Patent metadata

Field	Value
Publication number	US-10534174-B2
Application number	US-201615563723-A
Country	US
Kind code	B2
Filing date	Apr 4, 2016
Priority date	Apr 3, 2015
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

Systems, methods and ophthalmic lenses for image display of a virtual image, such as display of a holographic image. An ophthalmic lens is configured to optimize visualization of the displayed virtual images.

First claim

The invention claimed is:

1. An ophthalmic lens supply system for providing an ophthalmic lens configured to be fitted onto a frame and worn by a wearer, the ophthalmic lens including a holographic mirror and the frame including a build-in image source configured to illuminate the holographic mirror to cause, upon reflection onto the holographic mirror, visualization of a virtual image by the wearer, the ophthalmic lens being configured to correct a wearer's virtual vision, the supply system comprising:
first processing means configured to place an order of an ophthalmic lens, wherein the first processing means is located at a lens ordering side and comprises:
inputting means configured to input wearer prescription data,
inputting means configured to input frame data, wherein the frame data comprises at least one image source data;
second processing means configured to provide lens data based upon wearer prescription data, wherein the second processing means is located at a lens determination side and comprises outputting means configured to output the lens data; and
first transmission means configured to transmit the wearer prescription data and transmit the frame data, from the first processing means to the second processing means;

manufacturing means configured to manufacture an ophthalmic lens based upon lens data and frame data, wherein the manufacturing means is located at a lens manufacturing side; and
second transmission means configured to transmit the lens data from the second processing means to the manufacturing means;
wherein the manufacturing means comprise means configured to record the holographic mirror by performing holographic recording of a film of unrecorded holographic medium which is comprised in the ophthalmic lens by generating interference between a reference beam and an illumination beam to provide the ophthalmic lens comprising the holographic mirror, wherein the holographic recording is performed in an optical arrangement that takes into account at least the configuration of the frame such that the illumination beam is spatially configured with:
one or more recording lenses selected from unifocal lenses, multifocal lenses and progressive addition lenses, or a lens matrix, or an active lens with phase modulation, and
an opaque mask.

2. A method for providing an ophthalmic lens configured to be fitted onto a frame and worn by a wearer, wherein the ophthalmic lens includes a holographic mirror and wherein the frame includes a build-in image source configured to illuminate the holographic mirror to cause, upon reflection onto the holographic mirror, visualization of a virtual image by the wearer, the ophthalmic lens is configured to correct the wearer's virtual vision, the method comprising:
(a) providing an ophthalmic lens having a front surface and a rear surface, wherein the ophthalmic lens comprises a film of unrecorded holographic medium; and
(b) performing holographic recording of the holographic medium by generating interference between a reference beam and an illumination beam to provide an ophthalmic lens comprising a holographic mirror, wherein the holographic recording is performed in an optical arrangement that takes into account at least the configuration of the frame,
and wherein the performing holographic recording of (b) is such that the illumination beam is spatially configured with:
one or more recording lenses selected from unifocal lenses, multifocal lenses and progressive addition lenses, or a lens matrix, or an active lens with phase modulation, and
an opaque mask.

3. A method according to claim 2 ,
wherein the performing holographic recording (b) further takes into account:
a distance of visualization of the displayed virtual image by the wearer when wearing the frame, or
a direction of visualization of the displayed virtual image by the wearer when wearing the frame, or
a number of areas of the holographic mirror for the visualization of the displayed virtual image by the wearer when wearing the frame.

4. A method according to claim 2 ,
wherein the wearer is ametropic; and
wherein the providing the ophthalmic lens of (a) is configured to correct the wearer's ametropia for natural vision and is selected from single-vision lenses, multifocal lenses, and progressive addition lenses.

5. A method according to claim 2 ,
wherein, in the providing the ophthalmic lens (a):
the unrecorded holographic medium is selected from dichromated gelatins and photopolymers; and
the film of unrecorded holographic medium is provided on a front surface of the ophthalmic lens, on a rear surface of the ophthalmic lens, or between the front surface and the rear surface of the ophthalmic lens.

6. A method according to claim 2 ,
wherein the performing holographic recording of (b) is such that:
the reference beam simulates the beam of a build-in image source to be used for illuminating the holographic mirror to cause display of the virtual image to be visualized by the wearer when wearing the frame; and
the illumination beam is configured to define:
a distance of visualization of the displayed virtual image by the wearer when wearing the frame, or
a direction of visualization of the displayed virtual image by the wearer when wearing the frame, or
a number of areas of the holographic mirror for the visualization of the displayed virtual image by the wearer when wearing the frame.

7. A method according to claim 2 ,
wherein the performing holographic recording of (b) is such that the illumination beam is configured to differentially record a plurality of areas on the film of unrecorded holographic medium;
wherein each area corresponds to equal or distinct values of distance of visualization of the displayed virtual image by the wearer or corresponds to equal or distinct directions of visualization of the displayed virtual image by the wearer.

8. A method according to claim 2 ,
wherein the wearer is ametropic;
wherein the method is a method for providing a progressive addition lens, respectively a multifocal lens, respectively a single-vision lens;
wherein the providing the ophthalmic lens of (a) is a progressive addition lens, respectively a multifocal lens, respectively a single-vision lens; and
wherein the performing holographic recording of (b) is performed so that the holographic mirror comprises at least an area for near vision and an area for far vision corresponding to distinct values of distance of visualization of displayed virtual image by the wearer.

9. A method according to claim 2 ,
wherein the wearer is ametropic;
wherein the method is a method for providing a single-vision lens, respectively a multifocal lens, respectively a progressive addition lens;
wherein the providing the ophthalmic lens of (a) is a semi-finished lens blank;
wherein the performing holographic recording of (b) includes implementation of an auxiliary single-vision lens, respectively an auxiliary multifocal lens, respectively an auxiliary progressive addition lens, whose optical power takes into account the optical power required to correct the wearer's ametropia and the optical power of the semi-finished lens blank; and
wherein the auxiliary single-vision lens, respectively an auxiliary multifocal lens, respectively an auxiliary progressive addition lens, is for spatially configuring the reference beam or the illumination beam.

10. An ophthalmic lens configured to correct at least partially a wearer's vision for visualization of a displayed virtual image;
wherein the ophthalmic lens comprises a holographic mirror or a film of unrecorded holographic medium;
wherein the wearer is ametropic;
wherein the ophthalmic lens is a progressive addition lens, respect

Assignees

• Essilor Int

Inventors

• Bouchier Aude
• Biver Claudine
• Cano Jean-Paul

Classifications

• G02C2202/20

  Diffractive and Fresnel lenses or lens portions · CPC title

• G02C7/086

  Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles · CPC title

• G03H2270/21

  Curved bearing surface · CPC title

• G02B2027/0109

  comprising details concerning the making of holograms · CPC title

• G03H2270/55

  being an optical element, e.g. spectacles · CPC title