公开(公告)号：US12265281B2

公开(公告)日：2025-04-01

申请号：US17621344

申请日：2020-06-25

Applicant: Essilor International

Inventor： Isabelle Poulain ,  Guillaume Giraudet ,  Laurent Calixte ,  Alain Goulet ,  Sébastien Fricker

IPC: G02C7/02 ,  G02C7/06

Abstract: A device for determining a head freedom area of an optical lens adapted for a wearer looking at a specific point in a scene through the optical lens comprises at least one input adapted to obtain optical lens data representing the optical features of an optical lens, to obtain wearing data and fitting data representative of the wearing conditions and fitting parameters of the optical lens, and to obtain a specific threshold value for an optical performance criterion; and at least one processor configured for determining the head freedom area that corresponds to the head positions of the wearer that provide optical performances greater than or equal to the specific threshold value when the wearer is wearing the optical lens in given wearing conditions upon given fitting parameters and looking at the specific point in the scene through the optical lens.

公开(公告)号：US10018883B2

公开(公告)日：2018-07-10

申请号：US15101298

申请日：2013-12-03

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) ,  NIKON CORPORATION

Inventor： Mathieu Feuillade ,  Alain Goulet

IPC: G02F1/1347 ,  G02F1/1333 ,  C09K19/02 ,  G02F1/1337

CPC classification number: G02F1/13471 ,  G02F1/133711 ,  G02F2001/133726 ,  G02F2001/133738 ,  G02F2203/01 ,  G02F2203/06

Abstract: The invention concerns a transparent thin liquid crystal alignment film (1) including liquid crystals (2) within a polymerised liquid crystal composition, the film (1) comprising a first main surface (1a), a second main surface (1b) and a bulk (1c) comprised between said opposed two main surfaces (1a, 1b), for which: ⋅ in the vicinity of the first main surface (1a), the liquid crystals (2a) are aligned along a main first direction, ⋅ in the vicinity of the second main surface (1b), the liquid crystals (2b) are aligned along a main second direction, different from the first direction, and in between, the bulk (1c) comprises liquid crystals (2c) maintained in an isotropic orientation. The invention concerns also a process of manufacturing such a liquid crystal alignment film (1) and a polarization-independent spatial phase modulator including such a liquid crystal alignment film (1).

公开(公告)号：US10036898B2

公开(公告)日：2018-07-31

申请号：US14436756

申请日：2013-10-18

Applicant: Essilor International

Inventor： Sylvain Chene ,  Alain Goulet

IPC: G02C7/02 ,  G02B3/08 ,  G01M11/02

CPC classification number: G02C7/024 ,  G01M11/0242 ,  G02B3/08 ,  G02C7/02 ,  G02C2202/20

Abstract: Method for determining an ophthalmic lens which comprises an aspherical continuous layer and an aspherical Fresnel layer. The aspherical continuous layer is supported by one of the faces of the lens, the same holds for the aspherical Fresnel layer.

公开(公告)号：US20150286068A1

公开(公告)日：2015-10-08

申请号：US14436756

申请日：2013-10-18

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GÉNÉRALE D'OPTIQUE)

Inventor： Sylvain Chene ,  Alain Goulet

IPC: G02C7/02 ,  G02B3/08 ,  G01M11/02

CPC classification number: G02C7/024 ,  G01M11/0242 ,  G02B3/08 ,  G02C7/02 ,  G02C2202/20

Abstract: Method for determining an ophthalmic lens which comprises an aspherical continuous layer and an aspherical Fresnel layer. The aspherical continuous layer is supported by one of the faces of the lens, the same holds for the aspherical Fresnel layer.

Abstract translation: 用于确定包括非球面连续层和非球面菲涅耳层的眼科镜片的方法。 非球面连续层由透镜的一个面支撑，对于非球面菲涅尔层也是如此。

公开(公告)号：US09709820B2

公开(公告)日：2017-07-18

申请号：US14725996

申请日：2015-05-29

Applicant: Essilor International (Compagnie Generale D'Optique) ,  Nikon Corporation

Inventor： Toru Fujii ,  Alain Goulet

IPC: G02C7/02 ,  G02B3/08

CPC classification number: G02C7/022 ,  G02B3/08 ,  G02C7/02 ,  G02C2202/20

Abstract: A refractive Fresnel lens used for an optical system including an image plane, which includes a plurality of zone lens surfaces disposed concentrically and a plurality of side wall surfaces each formed between adjacent zone lens surfaces, is characterized in that the side wall surfaces are modulated so as to spatially spread in the image plane noise light due to reflection and/or refraction at the side wall surfaces.

公开(公告)号：US20150261008A1

公开(公告)日：2015-09-17

申请号：US14725996

申请日：2015-05-29

Applicant: Essilor International (Compagnie Generale D'Optique) ,  Nikon Corporation

Inventor： Toru Fujii ,  Alain Goulet

IPC: G02C7/02 ,  G02B3/08

CPC classification number: G02C7/022 ,  G02B3/08 ,  G02C7/02 ,  G02C2202/20

Abstract: A refractive Fresnel lens used for an optical system including an image plane, which includes a plurality of zone lens surfaces disposed concentrically and a plurality of side wall surfaces each formed between adjacent zone lens surfaces, is characterized in that the side wall surfaces are modulated so as to spatially spread in the image plane noise light due to reflection and/or refraction at the side wall surfaces.

Abstract translation: 用于包括图像平面的光学系统的折射菲涅尔透镜，其包括同心设置的多个区域透镜表面和各自形成在相邻区域透镜表面之间的多个侧壁表面，其特征在于，侧壁表面被调制为 由于在侧壁表面上由于反射和/或折射而在图像平面上空间扩散噪声光。