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公开(公告)号:US10562248B2
公开(公告)日:2020-02-18
申请号:US15508727
申请日:2014-09-04
Inventor: Haifeng Shan , Richard Muisener , Gerald Fournand , Aude Lapprand
Abstract: The invention concerns an optical lens comprising (i) a temporary coating at least partially covering a surface of the lens, said temporary coating comprising an outermost layer mechanically degradable through friction and/or contact; (ii) a removable film having opposite first side and second sides which adhere to said outermost layer through its first side, wherein—the first side of the film has a roughness Rq lower than 750 nm and the first side of the film has a surface energy lower than 38 mJ/m2.
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公开(公告)号:US10768448B2
公开(公告)日:2020-09-08
申请号:US16335206
申请日:2017-09-20
Applicant: ESSILOR INTERNATIONAL
Inventor: Haifeng Shan , Hao Wen Chiu , Aref Jallouli
Abstract: A blue-cut wafer can be coupled to a lens, such that the blue-cut wafer can be configured to reduce by absorption at least a portion of light having a first wavelength range from 400 nanometers to 500 nanometers, preferably from 400 nanometers to 460 nanometers. The blue-cut wafer can permit light having a second wavelength range, the second wavelength range being greater than the first wavelength range, and homogenize a color appearance and a blue-cut performance level of the blue-cut wafer based on the blue-cut wafer having a maximum thickness and a minimum thickness within twenty percent of a nominal thickness of the blue-cut wafer.
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公开(公告)号:US12226968B2
公开(公告)日:2025-02-18
申请号:US17623692
申请日:2020-07-01
Applicant: Essilor International
Inventor: Haifeng Shan , Aref Jallouli , Hao-Wen Chiu
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.
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公开(公告)号:US12196989B2
公开(公告)日:2025-01-14
申请号:US17442473
申请日:2020-03-23
Applicant: Essilor International
Inventor: Pierre Fromentin , Harutsai Waipunya , Haifeng Shan , Hao-Wen Chiu
Abstract: Disclosed are optical elements that contains two or more near infrared absorbers and methods of producing the same. Two near infrared absorbers with different near infrared wavelengths absorption ranges and residual colors are mixed with a precursor of an optical substrate. The resulting mixture is subsequently processed to produce optical elements that have a broad near infrared wavelength absorption range and a neutral residual color.
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公开(公告)号:US12186999B2
公开(公告)日:2025-01-07
申请号:US17623692
申请日:2020-07-01
Applicant: Essilor International
Inventor: Haifeng Shan , Aref Jallouli , Hao-Wen Chiu
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.
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公开(公告)号:US20140139802A1
公开(公告)日:2014-05-22
申请号:US13683867
申请日:2012-11-21
Inventor: Aref Jallouli , Philip Miller , Haifeng Shan
CPC classification number: G02C7/12 , G02B5/3041 , G02B5/3083
Abstract: A transparent optical element with dual light-polarizing effect comprises a first film forming a linear light-polarizer in a first surface portion of the element, and a second film forming a retarder plate within a second surface portion. The second surface portion is contained in the first surface portion. Such element may form an eyeglass adapted for providing stereoscopic vision by light polarization selection in the second surface portion, while providing protection against excessive light intensity in the first surface portion.
Abstract translation: 具有双光偏振效果的透明光学元件包括在元件的第一表面部分中形成线性偏振器的第一膜和在第二表面部分内形成延迟板的第二膜。 第二表面部分包含在第一表面部分中。 这种元件可以形成适于通过第二表面部分中的光偏振选择来提供立体视觉,同时提供防止第一表面部分中的过多光强度的保护。
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公开(公告)号:US12233611B2
公开(公告)日:2025-02-25
申请号:US17915933
申请日:2021-03-31
Applicant: Essilor International
Inventor: Hao Wen Chiu , Aref Jallouli , Haifeng Shan
Abstract: A method of manufacturing an optical lens (417, 901), comprising: obtaining (S301) a transparent thermoplastic (TP) carrier (410, 1210) with at least one smooth surface; printing (S305), via a 3-D printer on the side opposite to the at least one smooth surface of the transparent TP carrier (410, 1210), at least one transparent layer (420, 1220) using a thermoplastic filament (403), each transparent layer (420, 1220) having a predetermined light filtering property, thereby forming a functional layer (420, 1220); and performing (S307) an injection over-molding process (415) to fuse bond the functional layer (420, 1220) to a thermoplastic substrate thereby forming the optical lens, wherein the at least one smooth surface of the transparent TP carrier (410, 1210) forms a smooth surface of the manufactured optical lens (417, 901).
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公开(公告)号:US12226951B2
公开(公告)日:2025-02-18
申请号:US17623684
申请日:2020-07-01
Applicant: Essilor International
Inventor: Haifeng Shan , Hao-Wen Chiu , Aref Jallouli
IPC: B29C64/118 , B29C64/314 , B33Y10/00 , B33Y70/00 , B29K101/12 , B29L11/00 , B33Y80/00
Abstract: The disclosure includes core-shell filament composition for additive manufacturing of ophthalmic lenses and ophthalmic lens components. The disclosure also includes a set of criteria for selecting core and shell thermoplastic combinations that exhibit high optical clarity, improved filament inter-strand diffusion, high inter-strand adhesion, and improved manufactured part strength when used in an additive manufacturing method like fused deposition modelling.
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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.
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公开(公告)号:US11029541B2
公开(公告)日:2021-06-08
申请号:US16335199
申请日:2017-09-20
Applicant: ESSILOR INTERNATIONAL
Inventor: Hao Wen Chiu , Aref Jallouli , Haifeng Shan
IPC: G02C7/10 , B29D11/00 , C09B47/00 , B29K69/00 , B29K105/00
Abstract: The combination of selective and high pass filters to cut harmful blue light allowed to achieve the best compromise between high blue cut performance, high UV cut and low yellow index, not achievable when using the filters alone.
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