公开(公告)号：US11420426B2

公开(公告)日：2022-08-23

申请号：US15256351

申请日：2016-09-02

Applicant: HOYA OPTICAL LABS OF AMERICA, INC.

Inventor： Xuzhi Qin ,  Hideyo Sugimura ,  Michael Boulineau

IPC: B32B27/08 ,  B32B23/00 ,  B32B27/36 ,  B32B27/30 ,  B32B27/20 ,  B32B27/32 ,  B32B27/18 ,  C08G18/10 ,  C08G18/42 ,  C08G18/75 ,  C08K5/00 ,  C08L75/04 ,  G02B1/04 ,  B32B27/40 ,  B29D11/00 ,  B32B37/00 ,  B32B37/24 ,  B32B38/00 ,  G02B5/23 ,  G02C7/06 ,  G02C7/10 ,  G02B5/22 ,  C08J5/18 ,  C08L75/06 ,  C08L75/12 ,  B29K75/00 ,  B29K101/00 ,  B29K105/00 ,  B32B38/16 ,  B29K69/00 ,  B29K675/00

Abstract: A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

公开(公告)号：US20240418919A1

公开(公告)日：2024-12-19

申请号：US18817097

申请日：2024-08-27

Applicant: HOYA Optical Labs of America, Inc.

Inventor： James Mulligan ,  Michael Boulineau ,  Jeffrey Brown ,  Jared Johnson ,  Michael Marshall ,  Sandy Goebel ,  Joseph Leaman

IPC: G02B5/30 ,  C23C14/08 ,  C23C14/34 ,  G02C7/12

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.

公开(公告)号：US12105308B2

公开(公告)日：2024-10-01

申请号：US17661032

申请日：2022-04-27

Applicant: HOYA Optical Labs of America, Inc.

Inventor： James Mulligan ,  Michael Boulineau ,  Jeffrey Brown ,  Jared Johnson ,  Michael Marshall ,  Sandy Goebel ,  Joseph Leaman

IPC: G02B5/30 ,  C23C14/08 ,  C23C14/34 ,  G02C7/12

CPC classification number: G02B5/3016 ,  C23C14/08 ,  C23C14/34 ,  G02C7/12

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.

公开(公告)号：US20220334298A1

公开(公告)日：2022-10-20

申请号：US17661032

申请日：2022-04-27

Applicant: HOYA Optical Labs of America, Inc.

Inventor： James Mulligan ,  Michael Boulineau ,  Jeffrey Brown ,  Jared Johnson ,  Michael Marshall ,  Sandy Goebel ,  Joseph Leaman

IPC: G02B5/30 ,  C23C14/34 ,  C23C14/08 ,  G02C7/12

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.