High refractive index polarized spectacle lens

Patent metadata

Field	Value
Publication number	US-11067834-B2
Application number	US-201816172450-A
Country	US
Kind code	B2
Filing date	Oct 26, 2018
Priority date	Apr 28, 2016
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A high refractive index, polarized spectacle lens and a process for the production of the lens are provided. The lens includes a high refractive index lens substrate and a multi-layer, polarized film. The multi-layer, polarized film, in turn, includes at least one transparent support layer and at least two adhesion layers, wherein at least one of the adhesion layers is a polarized adhesion layer.

First claim

The invention claimed is:

1. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers,
wherein the polarized adhesion layer is arranged directly adjacent to the high refractive index lens substrate.

2. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers, and
wherein the adhesion layer adjacent to the high refractive index lens substrate has an adhesion strength between the adhesion layer and the lens substrate that is equal to or greater than 60 N/mm2.

3. The polarized spectacle lens according to claim 1 , wherein each adhesion layer has a layer thickness in a range of from 20 micron to 120 micron.

4. The polarized spectacle lens according to claim 1 , wherein at least one adhesion layer of the at least two adhesion layers is a non-polarized adhesion layer.

5. The polarized spectacle lens according to claim 1 , wherein the at least one non-polarized adhesion layer comprises a non-polarized layer material selected from the group consisting of polyvinyl alcohol (PVA), polyvinyl formal (PVF), polyvinyl acetate (PVAc), a saponified (ethylene/vinyl acetate) copolymer, a polyurethane adhesive, a holt melt adhesive (HMA), and a pressure sensitive adhesive (PSA), or a mixture thereof,
wherein the at least one polarized adhesion layer comprises a polarized layer material selected from the group consisting of the polyvinyl alcohol (PVA), the polyvinyl formal (PVF), the polyvinyl acetate (PVAc), and the saponified (ethylene/vinyl acetate) copolymer, or a mixture thereof, and
wherein the at least one polarized adhesion layer further comprises a dichroic dye, iodine, or the dichroic dye and iodine.

6. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers, and
wherein the at least one transparent support layer has a layer thickness in a range of from 60 micron to 160 micron.

7. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers, and
wherein the at least one transparent support layer has a ball indentation hardness in a range of from 60 N/mm2 to 120 N/mm2.

8. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers, and
wherein the at least one transparent support layer has a tensile strength greater than or equal to 80 N/mm2.

9. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers, and
wherein the at least one transparent support layer has a percent elongation greater than or equal to 15%.

10. The polarized spectacle lens according to claim 1 , wherein the at least one transparent support layer comprises at least one transparent polymer selected from the group consisting of cellulose based polymers, polycarbonate (PC) based polymers; polyester based polymers; acrylate based polymers; methacrylate polymers; polythiourethane based polymers; vinyl based polymers; styrene based polymers; olefin based polymers; amide based polymers; polyether imide based polymers; polysulfone based polymers; polyether sulfone based polymers; polyether ether ketone based polymers; polyphenylene sulfide based polymers; polyoxymethylene based polymers; and epoxy based polymers, or a blend thereof.

11. The polarized spectacle lens according to claim 1 , wherein the high refractive index lens substrate is selected from the group consisting of polyurethanes, episulfides, halogen substituted derivatives of bisphenol-A, and aromatic (meth)acrylic copolymers, or a blend thereof.

12. The polarized spectacle lens according to claim 1 , further comprising:
a functional dye selected from the group consisting of fashion colored dyes, enhanced spectral colored dyes, blue spectral region of light absorbing dyes, UV absorbing dyes, photochromic dyes, infrared absorption dyes, narrow band absorption dyes, or a combination thereof.

13. A high refractive index, polarized spectacle lens comprising:
a multi-layer, polarized film; and
a high refractive index lens substrate arranged on at least one surface of the multi-layer, polarized film,
wherein the multi-layer, polarized film includes at least one transparent support layer and at least two adhesion layers,
wherein at least one of the adhesion layers is a polarized adhesion layer,
wherein the at least one transparent support layer is located between the at least two adhesion layers, and
wherein the multi-layer, polarized film has a total thickness in a range of from 70 micron to 350 micron.

14. The polarized spectacle lens according to claim 1 , wherein the multi-layer, polarized film has a concave side and a convex side,
wherein the multi-layer, polarized film is embedded in the high refractive index lens substrate, and
wherein a thickness of the high refractive index lens substrate on the concave side is in a range of from 0.35 mm to 17.90 mm and the thickness of the high refractive index lens substrate on the convex side is in the range of from 0.41 mm to 1.19 mm.

15. The polarized spectacle lens according to claim 1 , wherein the multi-layer, polarized film has a concave side and a convex side,
wh

Assignees

• Zeiss Carl Vision Int Gmbh

Inventors

• Brown Stephen
• Liang Jingye
• Ryan Ben

Classifications

• G02C7/12 Primary

  Polarisers · CPC title

• G02C7/02

  Lenses; Lens systems {; Methods of designing lenses} · CPC title

• G02B5/305

  including organic materials, e.g. polymeric layers · CPC title

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• G02B1/10

  Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence) · CPC title