公开(公告)号：US20230364871A1

公开(公告)日：2023-11-16

申请号：US18027982

申请日：2021-09-27

Applicant: Essilor International

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

IPC: B29D11/00 ,  B29C71/02

CPC classification number: B29D11/00788 ,  B29D11/00634 ,  B29D11/0048 ,  B29D11/00432 ,  B29C71/02 ,  B29C2071/022

Abstract: The present disclosure relates to a method of printing a thermoplastic film on an optical mold comprising adjusting a temperature of the optical mold to a first temperature, printing a first layer of the thermoplastic film on the optical mold once the temperature of the optical mold has reached the first temperature, applying a vacuum to the optical mold to hold the thermoplastic film on the optical mold, adjusting the temperature of the optical mold to a second temperature, printing a second layer of the thermoplastic film on the first layer of the thermoplastic film once the temperature of the optical mold has reached the second temperature, adjusting the temperature of the optical mold to a third temperature, annealing the first layer and the second layer once the temperature of the optical mold has reached the third temperature, and removing the vacuum from the optical mold permitting removal of the thermoplastic film including the annealed first layer and the annealed second layer from the optical mold.

公开(公告)号：US20230072785A1

公开(公告)日：2023-03-09

申请号：US18049856

申请日：2022-10-26

Applicant: Essilor International

Inventor： Matthieu GUILLOT ,  Mathieu MEYNEN ,  Hao-Wen CHIU ,  Christophe PLESSIS ,  Jeanne MARCHAL ,  Bjorn DROBE

IPC: B29D11/00 ,  G02B1/14 ,  G02B1/11 ,  G02B3/00

Abstract: The present disclosure includes optical articles comprising a lens having first and second lens surfaces and a protective layer having first and second protective surfaces that is coupled to the lens such that the first protective surface is disposed on the second lens surface. The optical article can comprise a plurality of convex or concave optical elements defined on the second lens surface or the first protective surface. The protective layer can have a maximum thickness larger than a maximum height of each of the optical elements such that the protective layer encapsulates the optical elements.

公开(公告)号：US20220266488A1

公开(公告)日：2022-08-25

申请号：US17623692

申请日：2020-07-01

Applicant: Essilor International

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

IPC: B29C45/14

Abstract: Disclosed herein is an injection molding method for making optical thermoplastic lenses using 3D—printed functional wafers. The method employs a variable injection molding cavity temperature that is heated to at least wafer Tg—10° C.

公开(公告)号：US20250010561A1

公开(公告)日：2025-01-09

申请号：US18708934

申请日：2022-12-13

Applicant: ESSILOR INTERNATIONAL

Inventor： Hao-Wen CHIU ,  Aref JALLOULI

IPC: B29D11/00 ,  B29C45/14 ,  G02C7/02

Abstract: A method of forming an optical lens includes providing a first mold insert of a molding device having a contacting surface, the contacting surface including a plurality of inverted microstructures disposed on the contacting surface, each microstructure of the plurality of inverted microstructures having a shape inversely related to a shape of microstructures on a surface of a molded base lens; replacing the first mold insert with a second mold insert having a contacting surface thereof; applying a curable coating to a surface of the base lens having the microstructures formed thereon; pressing the contacting surface of the second mold insert into at least a portion of the curable coating applied to the surface of the base lens; and curing the curable coating into a curable layer, the microstructures being substantially entirely encapsulated in the curable layer.

公开(公告)号：US20240019717A1

公开(公告)日：2024-01-18

申请号：US18026438

申请日：2021-09-17

Applicant: Essilor International

Inventor： Elliot FRENCH ,  Srinivasan BALASUBRAMANIAN ,  Hao-Wen CHIU

IPC: G02C7/10

CPC classification number: G02C7/102 ,  G02C2202/16 ,  G02C7/108

Abstract: A light filtering element, includes: at least one layer, including a first narrowband dye, the first narrowband dye including a first narrowband dye peak absorbance wavelength with a first narrowband dye bandwidth and a first narrowband dye absorbance area ratio; and a first broadband dye, the first broadband dye including a first broadband dye peak absorbance wavelength with a first broadband dye bandwidth and a first broadband dye absorbance area ratio, wherein the first narrowband dye is a photochromic dye or a fixed tint dye, and the first broadband dye is a photochromic dye or a fixed tint dye.

公开(公告)号：US20210255487A1

公开(公告)日：2021-08-19

申请号：US16973939

申请日：2019-06-11

Applicant: Essilor International

Inventor： Hao-Wen CHIU ,  Srinivasan BALASUBRAMANIAN ,  Peiqi JIANG

IPC: G02C7/12 ,  G02C7/10 ,  G02B1/08 ,  G02B5/30 ,  B29D11/00

Abstract: Disclosed are methods for preparing partially polarized optical articles. A polarizing element is used to cover at least a portion of the front surface of an optical article to form a polarizing zone and a non-polarizing zone on the optical article. The optical article is then tinted to produce a gradual color transition between the polarizing zone and non-polarizing zone of the optical article.

公开(公告)号：US20200316886A1

公开(公告)日：2020-10-08

申请号：US16754883

申请日：2018-10-08

Applicant: Essilor International

Inventor： Hao-Wen CHIU ,  Shannon LOISELLE

IPC: B29D11/00 ,  B29C45/00 ,  B29C45/37 ,  B29C45/73 ,  B29C45/78 ,  G02B3/08

Abstract: A method for producing an optical article having a Fresnel microstructure and an injection molding system for producing such an article. The method includes heating and cooling a mold and applying a pressure to a thermoplastic material during injection molding of the optical article to facilitate formation of the Fresnel microstructure.

公开(公告)号：US20230391028A1

公开(公告)日：2023-12-07

申请号：US18451336

申请日：2023-08-17

Applicant: Essilor International

Inventor： Matthieu GUILLOT ,  Mathieu MEYNEN ,  Hao-Wen CHIU ,  Christophe PLESSIS ,  Jeanne MARCHAL ,  Bjorn DROBE

IPC: B29D11/00 ,  G02B1/14 ,  G02B1/11 ,  G02B3/00

CPC classification number: B29D11/00028 ,  G02B1/14 ,  G02B1/11 ,  G02B3/0031

Abstract: The present disclosure includes optical articles comprising a lens having first and second lens surfaces and a protective layer having first and second protective surfaces that is coupled to the lens such that the first protective surface is disposed on the second lens surface. The optical article can comprise a plurality of convex or concave optical elements defined on the second lens surface or the first protective surface. The protective layer can have a maximum thickness larger than a maximum height of each of the optical elements such that the protective layer encapsulates the optical elements.

公开(公告)号：US20230136033A1

公开(公告)日：2023-05-04

申请号：US17918446

申请日：2021-04-14

Applicant: Essilor International

Inventor： Hao-Wen CHIU ,  Aref JALLOULI

IPC: B29D11/00

Abstract: A mold element (350) is fabricated (305, 310, 315) using a first mold (5) with which microstructures (323) are integrally formed in relief on the mold element (350). A lens (340) is cast (320, 325, 330, 335) using a second mold (7) that includes the mold element (350) such that the microstructures (337) are integrally formed on the lens (340).

公开(公告)号：US20210354409A1

公开(公告)日：2021-11-18

申请号：US17286244

申请日：2019-09-27

Applicant: Essilor International

Inventor： Matthieu GUILLOT ,  Mathieu MEYNEN ,  Hao-Wen CHIU ,  Christophe PLESSIS ,  Jeanne MARCHAL ,  Bjorn DROBE

IPC: B29D11/00 ,  G02B3/00

Abstract: The present disclosure includes optical articles comprising a film layer that has first and second film surfaces and is embossed such that the first film surface defines a plurality of concave optical elements and the second film surface defines a plurality of convex optical elements. The present optical articles can include one or more optical layers coupled to the film layer. Each of the optical layer(s) can encapsulate the concave optical elements or the convex optical elements.