公开(公告)号：US11472141B2

公开(公告)日：2022-10-18

申请号：US16770361

申请日：2018-12-05

Applicant: Essilor International

Inventor： Jean-Marc Padiou ,  Mathieu Feuillade ,  Alexandre Gourraud ,  Loïc Quere ,  Olivier Roussel

IPC: B29D11/00 ,  B33Y80/00

Abstract: A method of manufacturing an ophthalmic lens, including: a step of providing a starting optical system (30) having a first optical function and a first main refractive index; a step of providing a transition layer (20) intended to be disposed between the starting optical system (30) and a complementary optical element (12) having a second main refractive index, the transition layer (20) aiming at reducing unwanted reflection caused by the mismatch between the first and the second main refractive index, the transition layer (20) having a transition optical function; and a step of additively manufacturing the complementary optical element (12) on the transition layer (20), the complementary optical element (12) having a second optical function, the second optical function being predetermined as a function of the first optical function and of the transition optical function.

公开(公告)号：US10934451B2

公开(公告)日：2021-03-02

申请号：US14411248

申请日：2013-06-26

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

Inventor： Mathieu Feuillade ,  Guillaume Cantagrel

IPC: C09D143/02 ,  C08G75/12 ,  C08G75/045 ,  C08F230/02 ,  C08F130/02 ,  C08F30/02 ,  C08K3/22 ,  C08K9/04

Abstract: Disclosed is a liquid polymerizable composition including a phosphine oxide or a phosphine sulphide monomer composition with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.

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).