Jared D Johnson

US Patent:

20220334298, Oct 20, 2022

Filed:

Apr 27, 2022

Appl. No.:

17/661032

Inventors:

- Lewisville TX, US
Michael Boulineau - Ramsey MN, US
Jeffrey Brown - Ramsey MN, US
Jared Johnson - Ramsey MN, US
Michael Marshall - Ramsey MN, US
Sandy Goebel - Ramsey MN, US
Joseph Leaman - Ramsey MN, US

Assignee:

HOYA Optical Labs of America, Inc. - Lewisville TX

International Classification:

G02B 5/30
C23C 14/34
C23C 14/08
G02C 7/12

Abstract:

The present invention relates to a polarization filter for ophthalmic lenses. The polarization filter comprises a mesogen layer coated onto a retardation film, either directly or through an adhesive layer. The present invention further discloses that the polarization filter formed by employing a thin film or sheet, having a defined level of retardation between the light source and the mesogen layer, for example, a cholesteric mesogen layer, the multilayered laminate structure demonstrates linear polarization of the light transmitted through the mesogen laminate structure, and, hence, can be used in ophthalmic lenses, e.g. spectacle or eyeglass lenses. The polarization filter enhances the performance by allowing transmission of the polarization filter closer to the theoretical maximum transmission.

US Patent:

20200292740, Sep 17, 2020

Filed:

Mar 12, 2020

Appl. No.:

16/817398

Inventors:

- Ramsey MN, US
Michael Boulineau - Forest Lake MN, US
Jeffrey Brown - St. Louis Park MN, US
Jared Johnson - Ramsey MN, US
Michael Marshall - Andover MN, US
Sandy Goebel - Stacy MN, US
Joseph Leaman - Minneapolis MN, US

Assignee:

Vision Ease, LP - Ramsey MN

International Classification:

G02B 5/30
G02C 7/12
C23C 14/08
C23C 14/34

Abstract:

The present invention relates to a polarization filter for ophthalmic lenses. The polarization filter comprises a mesogen layer coated onto a retardation film, either directly or through an adhesive layer. The present invention further discloses that the polarization filter formed by employing a thin film or sheet, having a defined level of retardation between the light source and the mesogen layer, for example, a cholesteric mesogen layer, the multilayered laminate structure demonstrates linear polarization of the light transmitted through the mesogen laminate structure, and, hence, can be used in ophthalmic lenses, e.g. spectacle or eyeglass lenses. The polarization filter enhances the performance by allowing transmission of the polarization filter closer to the theoretical maximum transmission.