LAMINATED MIRROR LENS

• US 20170299898A1
• Filed: 09/30/2015
• Published: 10/19/2017
• Est. Priority Date: 10/03/2014
• Status: Active Grant

• Current Assignee: Luxottica Srl (EssilorLuxottica SA), Oakley, Inc. (EssilorLuxottica SA)
• Original Assignee: Luxottica Srl (EssilorLuxottica SA), Oakley, Inc. (EssilorLuxottica SA)
• Inventors: Gallina, Andrea, Coppa, Marco, Gordon, Philip Denton, McCabe, Brock Scott, Saylor, Ryan, Reyes, Carlos D.
• Granted Patent: US 10,520,756 B2
• Time in Patent Office: Days
• CPC Class Codes: B29C 45/14811 Multilayered articles B29C45/14827 takes precedence
• CPC Class Codes: B29D 11/00 Producing optical elements, e.g. lenses or prisms grinding or polishing of optical elements B24B; constructional form of optical elements G02B; optical parts of spectacles G02C7/00
• CPC Class Codes: B29D 11/00009 Production of simple or compound lenses
• CPC Class Codes: B29D 11/00432 Auxiliary operations, e.g. machines for filling the moulds B29D11/00125 takes precedence
• CPC Class Codes: B29D 11/00634 Production of filters
• CPC Class Codes: B29D 11/0073 Optical laminates
• CPC Class Codes: B29D 11/00865 Applying coatings; tinting; colouring printing, marking or copying processes B41M; identification in general G09F3/00; producing decorative effects in general B44C; positioning or marking of lenses B24B13/0055
• CPC Class Codes: B29K 2069/00 Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
• CPC Class Codes: B32B 2250/24 All layers being polymeric
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 23/04 comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a glass layer B32B17/08
• CPC Class Codes: B32B 23/20 comprising esters
• CPC Class Codes: B32B 2307/4026 within the layer by addition of a colorant, e.g. pigments, dyes
• CPC Class Codes: B32B 2307/42 Polarizing, birefringent, filtering
• CPC Class Codes: B32B 2307/50 having particular mechanical properties
• CPC Class Codes: B32B 2307/518 bi-axially
• CPC Class Codes: B32B 2307/546 Flexural strength; Flexion stiffness
• CPC Class Codes: B32B 2307/554 Wear resistance
• CPC Class Codes: B32B 2307/714 Inert, i.e. inert to chemical degradation, corrosion
• CPC Class Codes: B32B 2551/00 : Optical elements
• CPC Class Codes: B32B 27/08 : of synthetic resin
• CPC Class Codes: B32B 27/308 : comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/32 : comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/34 : comprising polyamides
• CPC Class Codes: B32B 27/36 : comprising polyesters
• CPC Class Codes: B32B 27/365 : comprising polycarbonates
• CPC Class Codes: B32B 27/40 : comprising polyurethanes
• CPC Class Codes: B32B 3/28 : characterised by a layer comprising a deformed thin sheet , i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled B32B29/08 takes precedence
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: G02B 1/14 : Protective coatings, e.g. hard coatings
• CPC Class Codes: G02B 5/0816 : Multilayer mirrors, i.e. having two or more reflecting layers G02B5/0883, G02B5/0891 take precedence
• CPC Class Codes: G02C 2202/16 : Laminated or compound lenses
• CPC Class Codes: G02C 7/02 : Lenses; Lens systems ; Methods of designing lenses
• CPC Class Codes: G02C 7/022 : Ophthalmic lenses having special refractive features achieved by special materials or material structures G02C7/049 takes precedence
• CPC Class Codes: G02C 7/12 : Polarisers
• CPC Class Codes: G02C 7/14 : Mirrors; Prisms

Abstract

A lens for eyewear is configured to reduce the appearance of scratches on the lens and/or increase the durability of the lens. The lens can include a functional stack bonded to a lens body. The functional stack can include a functional layer, such as a thin film coating, sandwiched between the lens body and an optical-grade transparent film. The functional stack can increase abrasion resistance and environmental durability of the lens, and can reduce the appearance of scratches on the lens. The combined lens body and functional stack can increase the durability of the lens relative to a lens with a thin film coating (e.g., a gradient or mirror stack) on an external surface of the lens.

Claims

1. A lens comprising:

a lens body comprising a substantially rigid material, the lens body having a convex surface and a concave surface; and

a functional stack bonded to the lens body, the functional stack comprising;

a first flexible thin polymeric material having a first surface and a second surface opposite the first surface; and

a functional layer applied to the first surface of the flexible thin polymeric material,

wherein the functional layer is positioned between the lens body and the first flexible thin polymeric material.

2. The lens of claim 1, wherein the first flexible thin polymeric material has a thickness that is at least 80 microns and less than or equal to 500 microns.

3. The lens of claim 1, wherein the functional layer comprises a thin film coating.

4. The lens of claim 3, wherein the thin film coating comprises a mirror stack.

5. The lens of claim 1, wherein the first flexible thin polymeric material comprises polycarbonate.

6. The lens of claim 1, wherein the substantially rigid material is polycarbonate.

7. The lens of claim 1, further comprising an adhesive configured to bond the functional stack to the lens body.

8. The lens of claim 7, wherein the adhesive is configured to provide index matching between the thin film coating and the lens body.

9. The lens of claim 1, further comprising a hard coat layer disposed on an exterior surface of the lens body and an exterior surface of the functional stack, the hard coat layer comprising a substantially uniform layer of polymeric material configured to increase an abrasion resistance, a mechanical durability, and/or a chemical resistance of the lens.

10. The lens of claim 1, wherein the functional stack further comprises a second flexible thin polymeric material having a first surface and a second surface opposite the first surface, and wherein the functional layer is positioned between the first and second flexible thin polymeric materials.

11. The lens of claim 10, wherein each of the first and second flexible thin polymeric material has a thickness that is at least 80 microns and less than or equal to 200 microns.

12. The lens of claim 10, further comprising an adhesive layer configured to bond the functional layer to the second flexible thin polymeric material.

13. The lens of claim 12, wherein the first flexible thin polymeric material includes one or more dyes configured to impart a gradient or solid color to the first flexible thin polymeric material.

14. The lens of claim 13, further comprising a polarizer layer positioned between the first and second flexible thin polymeric materials.

15. Eyewear comprising a frame and the lens of claim 1 connected to the frame.

16-24. -24. (canceled)

25. A lens comprising:

a lens body comprising a substantially rigid material, the lens body having a convex surface and a concave surface; and

a functional stack bonded to the lens body, the functional stack comprising a first flexible thin polymeric material having a first surface and a second surface opposite the first surface, the first flexible thin polymeric material having a dye applied to the first surface; and

wherein the first surface of the first flexible thin polymeric material is positioned between the lens body and the second surface of the first flexible thin polymeric material.

26. The lens of claim 25, wherein the functional stack further comprises a thin film coating positioned between the first flexible thin polymeric material and the lens body.

27. The lens of claim 26, wherein the thin film coating comprises a mirror stack.

28. The lens of claim 25, wherein the dye is applied to the first surface of the first flexible thin polymeric material through a roll-to-roll sublimation process.

29. The lens of claim 28, wherein the functional stack further comprises a second flexible thin polymeric material having a first surface and a second surface opposite the first surface, and wherein the first surface of the first flexible thin polymeric material is positioned between the second surface of the first flexible thin polymeric material and the second flexible thin polymeric material.