Spectacle lens and method for producing a spectacle lens

Patent metadata

Field	Value
Publication number	US-11169398-B2
Application number	US-201916714160-A
Country	US
Kind code	B2
Filing date	Dec 13, 2019
Priority date	Jun 17, 2015
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

A spectacle lens has a transparent substrate and at least one HOE-capable polymer layer arranged on the transparent substrate. The at least one HOE-capable polymer layer is suitable for forming a holographic optical element. Related methods and apparatus are described.

First claim

The invention claimed is:

1. An optical lens, comprising:
a transparent substrate, and
at least one HOE-capable polymer layer on the transparent substrate,
wherein the at least one HOE-capable polymer layer forms a holographic optical element,
wherein the holographic optical element is formed by a spatially resolved exposure of the HOE-capable polymer layer,
wherein the spatially resolved exposure is based on control data that comprises an intensity and a phase of the spatially resolved exposure, and
wherein the control data is determined depending on a geometry of the transparent substrate.

2. The optical lens of claim 1 , further comprising:
a transparent hard layer on the transparent substrate,
wherein the at least one HOE-capable polymer layer is between the transparent substrate and the transparent hard layer.

3. The optical lens of claim 2 ,
wherein the transparent hard layer comprises a polysiloxane-based organic/inorganic hybrid material.

4. The optical lens of claim 2 ,
wherein a layer thickness of the transparent hard layer is in a range of 1 μm to 3 μm.

5. The optical lens of claim 1 ,
wherein a layer thickness of each of the at least one HOE-capable polymer layer is in a range of 1 μm-100 μm.

6. The optical lens of claim 1 ,
wherein a first HOE-capable polymer layer of the at least one HOE-capable polymer layer is on a first side of the transparent substrate, and
wherein a second HOE-capable polymer layer of the at least one HOE-capable polymer layer is on a second side of the transparent substrate.

7. The optical lens of claim 1 ,
wherein the HOE-capable polymer layer comprises an HOE polymer in a polymer matrix, and
wherein the optical lens further comprises a primer layer that comprises a further polymer in the polymer matrix.

8. Spectacles, comprising:
a spectacle lens comprising the optical lens of claim 1 ; and
a light source assembly configured to emit light in a direction of the optical lens,
wherein the HOE-capable polymer layer is configured to reflect the light emitted by the light source assembly to an eye of a wearer of the spectacles.

9. The spectacles of claim 8 ,
wherein the holographic optical element implements an optical functionality selected from a group comprising a wavelength-specific mirror, a transflective beam combiner, and an angle-specific reflector.

10. A method for producing an optical lens comprising an HOE-capable polymer layer, wherein the HOE-capable polymer layer is configured to form a holographic optical element, wherein the method comprises:
coating of a transparent substrate of the optical lens with a precursor of the HOE-capable polymer layer;
converting the precursor that is on the transparent substrate, to obtain the HOE-capable polymer layer, and
performing a spatially resolved exposure of the HOE-capable polymer layer to form the holographic optical element,
wherein the performing of the spatially resolved exposure comprises:
obtaining geometric data comprising a geometry of the transparent substrate of the optical lens; and
based on the geometric data, determining control data comprising an intensity and a phase of the spatially resolved exposure,

wherein the spatially resolved exposure is performed based on the control data.

11. The method of claim 10 , wherein the method further comprises:
applying a hard layer to the HOE-capable polymer layer.

12. The method of claim 11 ,
wherein the spatially resolved exposure of the HOE-capable polymer layer takes place after applying the hard layer and through the hard layer.

13. The method of claim 11 ,
wherein said applying of the hard layer comprises wet chemical techniques.

14. The method of claim 11 ,
wherein said applying of the hard layer comprises curing.

15. The method of claim 10 , wherein the method further comprises:
applying at least one of an antireflective layer or a clean coat layer to the HOE-capable polymer layer.

16. The method of claim 10 , wherein the precursor and/or the HOE-capable polymer layer comprise a photoreactive component and/or an HOE polymer and/or a polymer matrix, and wherein the method further comprises:
applying a primer layer comprising the polymer matrix and/or a further polymer to the transparent substrate.

17. A method for producing an optical lens comprising an HOE-capable polymer layer, wherein the HOE-capable polymer layer is configured to form a holographic optical element, wherein the method comprises:
coating of a carrier with a precursor of the HOE-capable polymer layer;
converting the precursor that is on the carrier, to obtain the HOE-capable polymer layer;
performing a fixation of the HOE-capable polymer layer on a transparent substrate of the optical lens; and
performing a spatially resolved exposure of the HOE-capable polymer layer to form the holographic optical element,
wherein the performing of the spatially resolved exposure comprises:
obtaining geometric data comprising a geometry of the transparent substrate of the optical lens; and
based on the geometric data, determining control data comprising an intensity and a phase of the spatially resolved exposure,

wherein the spatially resolved exposure is performed based on the control data.

18. The method of claim 17 ,
wherein the fixation of the HOE-capable polymer layer is performed by gluing and/or laminating.

19. The method of claim 17 , wherein the method, after the fixation of the HOE-capable polymer layer on the transparent substrate, further comprises:
removing the carrier from the HOE-capable polymer layer.

20. An optical lens, comprising:
a transparent substrate, and
at least one HOE-capable polymer layer on the transparent substrate, wherein the at least one HOE-capable polymer layer forms a holographic optical element,

a transparent hard layer on the transparent substrate,
wherein the at least one HOE-capable polymer layer is between the transparent substrate and the transparent hard layer, and
wherein the transparent hard layer comprises a polysiloxane-based organic/inorganic hybrid material.

Assignees

• tooz technologies GmbH

Inventors

• Pütz Jörg
• Rifai Katharina
• Lindig Karsten

Classifications

• G03H2001/0439

  for recording Holographic Optical Element [HOE] · CPC title

• G03H2001/0264

  Organic recording material · CPC title

• G03H1/0402

  Recording geometries or arrangements (G03H1/0443, G03H1/0476, G03H1/16 take precedence) · CPC title

• G02C2202/16

  Laminated or compound lenses · CPC title

• G02C7/086 Primary

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