公开(公告)号：US12130505B2

公开(公告)日：2024-10-29

申请号：US17280701

申请日：2019-09-26

Applicant: ESSILOR INTERNATIONAL

Inventor： Coralie Barrau ,  Elise Poletto ,  Jean-Philippe Dumont ,  Christelle Marck ,  Céline Robin ,  Valérie Jacquemin ,  Elliot French

IPC: G02C7/10 ,  G02C7/02

CPC classification number: G02C7/104 ,  G02C7/028 ,  G02C7/107 ,  G02C7/108

Abstract: This ophthalmic lens for improving vision has a light cut factor CutLED between 32% and 90%, for wavelengths ranging from 380 nm to 500 nm, defined by formula (I), where Σ is a discrete or continuous sum operator, λ is the wavelength in nm, lens T % is the spectral transmittance of the lens in % and LED emission is the spectral distribution of a white light emitting diode; a mean luminous transmittance in the visible range higher than or equal to 75%; and light transmitted through the ophthalmic lens has a colorimetric value b*, as defined in the colorimetric CIE L*a*b* with illuminant D65, lower than 25.

公开(公告)号：US12019316B2

公开(公告)日：2024-06-25

申请号：US16973846

申请日：2019-06-11

Applicant: ESSILOR INTERNATIONAL

Inventor： Christelle Marck ,  Elliot French

IPC: G02C7/10 ,  B29B7/88 ,  B29D11/00 ,  G02B1/04 ,  G02B5/20 ,  B29K69/00 ,  B29K105/00

CPC classification number: G02C7/104 ,  B29B7/88 ,  B29D11/00923 ,  G02B1/041 ,  G02B5/20 ,  G02C7/108 ,  B29K2069/00 ,  B29K2105/0032 ,  B29K2995/002 ,  G02C2202/16

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：US11505675B2

公开(公告)日：2022-11-22

申请号：US16335150

申请日：2017-09-20

Applicant: ESSILOR INTERNATIONAL

Inventor： Hao Wen Chiu ,  Elliot French ,  Aref Jallouli ,  Haifeng Shan

IPC: C08K5/18 ,  C08K5/101 ,  C08K5/00 ,  C08K5/12 ,  C08K5/3435 ,  C08K5/3475 ,  G02B1/04 ,  G02C7/10 ,  C08K5/17 ,  C08L69/00 ,  G02C7/02 ,  C08K5/08

Abstract: Embodiments of the disclosure relate to a series of PC resin additives for maintaining the color stability and blue-cut performance during injection molding. The additives may be used to adapt a PC resin customarily used for sun protection lenses for clear lens applications.

公开(公告)号：US12007628B2

公开(公告)日：2024-06-11

申请号：US16973580

申请日：2019-06-11

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：US11760047B2

公开(公告)日：2023-09-19

申请号：US17054813

申请日：2019-05-13

Applicant: Essilor International

Inventor： Elliot French ,  Peiqi Jiang

IPC: B29D11/00 ,  G02B1/04 ,  B29K669/00 ,  B29K701/12

CPC classification number: B29D11/0073 ,  B29D11/00009 ,  G02B1/041 ,  B29K2669/00 ,  B29K2701/12

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：US11106057B2

公开(公告)日：2021-08-31

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.