Methods and apparatus for an ophthalmic lens with functional insert layers

Patent metadata

Field	Value
Publication number	US-8950862-B2
Application number	US-201213401952-A
Country	US
Kind code	B2
Filing date	Feb 22, 2012
Priority date	Feb 28, 2011
Publication date	Feb 10, 2015
Grant date	Feb 10, 2015

Abstract

This invention discloses a media substrate for incorporation into ophthalmic lenses that has been formed by the stacking of multiple functionalized layers. Additionally, methods and apparatus for providing a stacked functional layer insert for incorporation into an ophthalmic lens are also provided. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the lens includes at least one stacked functional layer insert portion.

First claim

The invention claimed is:

1. A method of forming a media substrate for an ophthalmic lens, the method comprising:
forming functionalized substrate layers with electrical functionality;
assembling the functionalized substrate layers into one of: an annular shape and a portion of an annular shape;
adhering the functionalized substrate layers to insulating layers thereby forming a stacked feature configured to at least partially circumscribe an optical zone;
forming electrical interconnections between the functionalized substrate layers;
encapsulating the stacked feature with one or more materials suitable for inclusion within a body of a molded ophthalmic lens.

2. The method of claim 1 wherein at least one of the functionalized substrate layers of the media substrate comprises a solid state energy source.

3. The method of claim 2 wherein the media substrate comprises an annular shape.

4. The method of claim 2 wherein the media substrate comprises a silicon substrate.

5. The method of claim 2 additionally comprising fixing a variable focus lens to the media substrate.

6. The method of claim 2 additionally comprising the steps of forming an integrated circuit on one of the functionalized substrate layers.

7. The method of claim 6 additionally comprising forming a through silicon via in at least one of the functionalized substrate layers.

8. The method of claim 6 additionally comprising the step of stacking at least two of the functionalized substrate layers into a three dimensional shape comprising a general profile of the ophthalmic lens.

Assignees

• Pugh Randall B
• Flitsch Frederick A
• Otts Daniel B
• Riall James Daniel
• Toner Adam
• Johnson & Johnson Vision Care

Inventors

• Pugh Randall B
• Flitsch Frederick A
• Otts Daniel B
• Riall James Daniel
• Toner Adam

Classifications

• H10W90/752

  between stacked chips · CPC title

• B29D11/00807 Primary

  Producing lenses combined with electronics, e.g. chips · CPC title

• G02C2202/16

  Laminated or compound lenses · CPC title

• G02C7/101

  having an electro-optical light valve (electro-optical elements per se G02F) · CPC title

• B29D11/00028

  Bifocal lenses; Multifocal lenses · CPC title