公开(公告)号：US20180200973A1

公开(公告)日：2018-07-19

申请号：US15744316

申请日：2015-07-15

Applicant: Essilor International

Inventor： Elliot FRENCH ,  Severine TISNE ,  Paresh KITCHLOO

IPC: B29D11/00

CPC classification number: B29D11/00009 ,  B29D11/0073 ,  B29D11/00932 ,  B29K2629/04 ,  B29K2669/00 ,  G02B1/04 ,  G02B1/041 ,  G02B1/043 ,  G02B1/10 ,  G02B1/14

Abstract: This invention relates to the development of a multi-layer PC polar laminate and its cut and form process. The laminate displays increased adhesion between a PC film layer and an adjacent film layer. As a result of the increased adhesion, less adhesive may be applied between laminate layers, which positively affects PC cracking and mold cavity contamination.

公开(公告)号：US20240217193A1

公开(公告)日：2024-07-04

申请号：US18557021

申请日：2022-05-17

Applicant: ESSILOR INTERNATIONAL

Inventor： Elliot FRENCH ,  Hao-Wen CHIU

IPC: B29D11/00

CPC classification number: B29D11/00326 ,  B29D11/00432 ,  B29D11/0048

Abstract: A mold device includes a mold including a first mold side and a second mold side having a lower thermal conductivity than the first mold side, the first mold side including a first mold insert disposed on a surface of the first mold side, the first mold insert including a plurality of inverted microstructures formed thereon, the plurality of inverted microstructures disposed according to a predetermined layout, wherein a thermal conductivity of the first mold side is 5 to 1,500 W·m−1·K−1 at 25° C., and a thermal conductivity of the second mold side is 0.01 to 2 W·m−1·K−1 at 25° C.

公开(公告)号：US20210247629A1

公开(公告)日：2021-08-12

申请号：US16973580

申请日：2019-06-11

Applicant: Essilor International

Inventor： Elliot FRENCH ,  Srinivasan BALASUBRAMANIAN

IPC: G02C7/10 ,  G02C7/12 ,  B29D11/00

Abstract: Embodiments of the disclosure relate to the use of dyes that impart localized regions of reduced transmittance across specific wavelength ranges. The inclusion of transmittance-attenuating dyes into a lens provides enhanced color contrast by tuning the spectrum of visible light transmission through the lens.

公开(公告)号：US20210181532A1

公开(公告)日：2021-06-17

申请号：US16973846

申请日：2019-06-11

Applicant: Essilor International

Inventor： Christelle MARCK ,  Elliot FRENCH

IPC: G02C7/10 ,  G02B1/04 ,  B29B7/88 ,  B29D11/00

Abstract: The object of this invention is to provide optical articles having one or more transmittance-attenuating dyes. Each dye attenuates transmission of a certain wavelength range. Different dyes can be combined in different concentrations to tune the transmittance spectrum through a lens. The transmittance-attenuating dyes can be incorporated into different optical articles using different production methods.

公开(公告)号：US20190317338A1

公开(公告)日：2019-10-17

申请号：US16343160

申请日：2016-10-19

Applicant: ESSILOR INTERNATIONAL

Inventor： Hao-Wen CHIU ,  Haifeng SHAN ,  Elliot FRENCH

IPC: G02C7/08 ,  G02C7/12

Abstract: Optical polymeric sheets with specific ranges of optical retardation, elastic modulus, and Shore A hardness were used to construct flexible polar patches. The polar patches conform to non-polarizing lenses of various diopter bases and provide polarizing efficiency that is comparable to regular polarizing lenses.

公开(公告)号：US20240316846A1

公开(公告)日：2024-09-26

申请号：US18574673

申请日：2022-07-12

Applicant: ESSILOR INTERNATIONAL

Inventor： Elliot FRENCH ,  Burcin IKIZER ,  Zbigniew TOKARSKI ,  Eric GACOIN ,  Sebastien HENRION

IPC: B29C45/26 ,  B29C33/38 ,  B29C33/42 ,  B29K663/00 ,  B29L11/00

CPC classification number: B29C45/2632 ,  B29C33/3878 ,  B29C2033/426 ,  B29K2663/00 ,  B29L2011/0016

Abstract: A method for forming a mold insert includes forming a stamp, a surface of the stamp including a plurality of inverted microstructures formed thereon; and pressing the stamp into a medium disposed on a surface of a first mold insert to form a microstructured film, the microstructured film including a plurality of microstructures formed on a surface of the microstructured film based on the plurality of inverted microstructures, the plurality of microstructures being complementary to the plurality of inverted microstructures.

公开(公告)号：US20240103302A1

公开(公告)日：2024-03-28

申请号：US18525964

申请日：2023-12-01

Applicant: Essilor International

Inventor： Elliot FRENCH ,  Srinivasan BALASUBRAMANIAN

IPC: G02C7/10 ,  B29D11/00 ,  G02C7/12

CPC classification number: G02C7/107 ,  B29D11/00644 ,  B29D11/0073 ,  B29D11/00894 ,  G02C7/104 ,  G02C7/12 ,  G02C2202/16

Abstract: Embodiments of the disclosure relate to the use of dyes that impart localized regions of reduced transmittance across specific wavelength ranges. The inclusion of transmittance-attenuating dyes into a lens provides enhanced color contrast by tuning the spectrum of visible light transmission through the lens.

公开(公告)号：US20230375856A1

公开(公告)日：2023-11-23

申请号：US18030440

申请日：2021-10-06

Applicant: Essilor International

Inventor： Haifeng SHAN ,  Hao-Wen CHIU ,  Elliot FRENCH ,  Aref JALLOULI

IPC: G02C7/02 ,  G02C7/10

CPC classification number: G02C7/022 ,  G02C7/104 ,  G02C7/108 ,  G02C2202/20 ,  G02C2202/12 ,  G02C2202/24 ,  G02C2202/16

Abstract: An optical article, includes: a first surface and a second surface, wherein at least one microstructure is patterned on the second surface to form a microstructure pattern, the microstructure pattern including a plurality of microlenses configured to adjust a focus of the optical article, and a first dye having a first dye peak absorbance wavelength with a first dye bandwidth, wherein the first dye is configured to filter a first predetermined range of light wavelengths. The optical article may further comprise a protective microstructure pattern, the protective microstructure pattern having a plurality of protective microstructures arranged complementary to an arrangement of a plurality of optical microstructures, the arrangement of the plurality of optical microstructures being disposed in the complementary arrangement of the protective microstructures.

公开(公告)号：US20210221079A1

公开(公告)日：2021-07-22

申请号：US17054813

申请日：2019-05-13

Applicant: Essilor International

Inventor： Elliot FRENCH ,  Peiqi JIANG

IPC: B29D11/00 ,  G02B1/04

Abstract: Disclosed are methods (100) for preparing a laminate incorporable to a surface of an optical lens and methods (500) for incorporating the laminate on the surface of the optical lens. The laminate is prepared by laminating an optical film (202a, 202b), such as a polycarbonate film, on each side of a functional film using an adhesive that is capable of preventing optical defects in the laminates during a thermoforming process and an injection molding process. The adhesive has optimal thermomechanical properties that include that the optical film (202a, 202b) coated with said adhesive has a modulus by compression greater than 6×106 Pa, and preferably greater than 2×108 Pa at a temperature from about 130° C. to 150° C. The laminate is incorporated on the optical lens via thermoforming followed by injection molding with overmolding technology.

公开(公告)号：US20240094562A1

公开(公告)日：2024-03-21

申请号：US18525989

申请日：2023-12-01

Applicant: Essilor International

Inventor： Elliot FRENCH ,  Srinivasan BALASUBRAMANIAN

IPC: G02C7/10 ,  B29D11/00 ,  G02C7/12

CPC classification number: G02C7/107 ,  B29D11/00644 ,  B29D11/0073 ,  B29D11/00894 ,  G02C7/104 ,  G02C7/12 ,  G02C2202/16

Abstract: Embodiments of the disclosure relate to the use of dyes that impart localized regions of reduced transmittance across specific wavelength ranges. The inclusion of transmittance-attenuating dyes into a lens provides enhanced color contrast by tuning the spectrum of visible light transmission through the lens.