Optical elements with alignment facilities for optical dyes

Patent metadata

Field	Value
Publication number	US-8926091-B2
Application number	US-60462009-A
Country	US
Kind code	B2
Filing date	Oct 23, 2009
Priority date	Jul 1, 2003
Publication date	Jan 6, 2015
Grant date	Jan 6, 2015

Abstract

The present invention relates to optical elements, such as but not limited to ophthalmic elements, comprising an alignment facility for an optical dye. The optical elements include a substrate; and an alignment facility for an optical dye connected to at least a portion of the substrate, where the alignment facility is an at least partial coating of an at least partially ordered liquid crystal material having at least a first general direction.

First claim

We claim:

1. An ophthalmic element comprising:
an ophthalmic substrate; and
an alignment facility for an optical dye connected to an ophthalmic substrate, the alignment facility comprising,
a first coating connected to the ophthalmic substrate, the first coating comprising an ordered liquid crystal material having a first general direction, and
an additional coating connected to the first coating, the additional coating comprising an ordered liquid crystal material having a second general direction that is parallel to the first general direction,
wherein said ordered liquid crystal material of said first coating is set, and said ordered liquid crystal material of said additional coating is set,
wherein a sum of a thickness of the first coating and a thickness of the additional coating ranges from 10 microns to 50 microns, and

wherein the ophthalmic substrate is an organic ophthalmic substrate.

2. The ophthalmic element of claim 1 wherein the ophthalmic substrate is chosen from corrective lenses, non-corrective lenses, partially formed lenses, and lens blanks.

3. The ophthalmic element of claim 1 wherein the ophthalmic substrate is chosen from untinted, tinted, linearly polarizing, photochromic, or tinted-photochromic ophthalmic substrates.

4. The ophthalmic element of claim 1 wherein the alignment facility comprises a plurality of additional coatings.

5. The ophthalmic element of claim 1 further comprising an orientation facility interposed between the coating of the alignment facility and the ophthalmic substrate, the orientation facility comprising a coating comprising an ordered alignment medium, wherein the ordered alignment medium is chosen from photo-orientation materials and rubbed-orientation materials.

6. The ophthalmic element of claim 5 wherein the orientation facility has a plurality of regions and each of the plurality of regions has a general direction that is the same or different from the remaining regions and together form a design or pattern.

7. The ophthalmic element of claim 1 wherein an optical dye is in contact with the alignment facility.

8. An ophthalmic element comprising:
an ophthalmic substrate; and
an alignment facility for an optical dye connected to an ophthalmic substrate, the alignment facility comprising,
a first coating connected to the ophthalmic substrate, the first coating comprising an ordered liquid crystal material having a first general direction, and
an additional coating connected to the first coating, the additional coating comprising an ordered liquid crystal material having a second general direction that is parallel to the first general direction,
wherein a sum of a thickness of the first coating and a thickness of the additional coating ranges from 10 microns to 50 microns, and
the ophthalmic substrate is an organic ophthalmic substrate.

Assignees

• Kumar Anil
• Foller Peter C
• Shao Jiping
• Transitions Optical Inc

Inventors

• Kumar Anil
• Foller Peter C
• Shao Jiping

Classifications

• C09K19/60

  Pleochroic dyes · CPC title

• C09K19/38

  Polymers · CPC title

• C09K19/2007

  the chain containing -COO- or -OCO- groups · CPC title

• C09K19/54

  Additives having no specific mesophase {characterised by their chemical composition} · CPC title

• C09K2019/0448

  the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate · CPC title