公开(公告)号：US20170261648A1

公开(公告)日：2017-09-14

申请号：US15500209

申请日：2015-07-28

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

Inventor： Yves LECLAIRE

IPC: G02B1/111 ,  B05D5/06 ,  G02C7/12 ,  G02B1/08 ,  G02C7/10 ,  G02C7/02

CPC classification number: G02B1/111 ,  B05D5/06 ,  G02B1/08 ,  G02C7/022 ,  G02C7/108 ,  G02C7/12 ,  G02C2202/16

Abstract: The invention relates to an ophthalmic lens comprising: a substrate having a given refractive index; and a coating that minimizes ultraviolet reflections, said coating having a given refractive index and being deposited on a rear face of the substrate. According to the invention, the thickness of the ultraviolet-reflection-minimizing coating is between I μm and approximately 200 μm and the refractive index of the ultraviolet-reflection-minimizing coating is at least 0.15 units less than the refractive index of the substrate. The invention also relates to a method for the production of such a lens.

公开(公告)号：US20200206709A1

公开(公告)日：2020-07-02

申请号：US16622438

申请日：2017-06-16

Applicant: Essilor International ,  SHANGHAI UNIVERSITY

Inventor： Yves LECLAIRE ,  Jian ZHAO ,  Liyi SHI ,  Shuai YUAN ,  Meihong ZHANG ,  Zhuyi WANG

IPC: B01J13/00 ,  C01G35/00

Abstract: Disclosed is a synthesis method for preparing tantalum pentoxide colloid including the steps of: a. Providing a transparent solution of amorphous tantalum pentoxide, b. Subjecting the solution to solvothermal conditions in order to form tantalum pentoxide nanocrystals, c. Dispersing the tantalum pentoxide nanocrystals in a solvent so as to form a tantalum pentoxide colloid.

公开(公告)号：US20200096674A1

公开(公告)日：2020-03-26

申请号：US16498695

申请日：2018-03-27

Applicant: Essilor International

Inventor： Anaëlle MORTREUX ,  Yves LECLAIRE

IPC: G02B1/14 ,  G02C7/02 ,  C07F7/18

Abstract: The present invention relates to an optical article comprising a substrate having at least one main surface successively coated with an impact-resistant primer coating and an abrasion- and/or scratch-resistant coating, which is formed from a composition comprising at least one epoxy compound bearing at least one silicon atom having at least one hydrolyzable group directly linked to the silicon atom and at least one group comprising an epoxy function, and/or a hydrolysate thereof, at least one alkylene glycol diglycidyl ether or poly(alkylene glycol) diglycidyl ether, colloidal particles of at least one metal oxide or metalloid oxide, at least one catalyst, the composition being devoid of comprise Si(X)4 compounds, or hydrolysates thereof, in which the X groups independently represent C1-C6 alkoxy groups.

公开(公告)号：US20200159041A1

公开(公告)日：2020-05-21

申请号：US16623561

申请日：2018-06-19

Applicant: Essilor International

Inventor： Dominique CONTE ,  Nicolas MAITRE ,  Yves LECLAIRE

IPC: G02C7/02 ,  B29D11/00

Abstract: An optical part (10) comprises an ophthalmic lens (11; 12) produced by additive manufacturing and a holder (14) integrally formed with the ophthalmic lens (11; 12). A method of producing an optical part is also disclosed.

公开(公告)号：US20170210942A1

公开(公告)日：2017-07-27

申请号：US15329481

申请日：2015-07-27

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

Inventor： Yves LECLAIRE

IPC: C09D183/04 ,  G02B1/14 ,  B29D11/00 ,  G02B1/04 ,  C09D5/00 ,  C08J7/16

CPC classification number: C09D183/04 ,  B29D11/00 ,  B29D11/00865 ,  C08J7/16 ,  C08J2333/12 ,  C08J2483/04 ,  C09D5/00 ,  G02B1/041 ,  G02B1/14 ,  G02B27/0006

Abstract: The present invention relates to a polymerizable composition for the formation of a lacquer on at least one face of an ophthalmic lens made from thermoplastic material from the polyacrylate family, comprising a curable organosilicon compound, and a condensation catalyst, said composition not containing any monomer having an epoxy or vinyl function or any compound originating from such monomers, so as to improve the adhesion of said lacquer to said lens.

公开(公告)号：US20170003420A1

公开(公告)日：2017-01-05

申请号：US15264290

申请日：2016-09-13

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

Inventor： Fabien BERIT-DEBAT ,  Christian BOVET ,  Jean-Paul CANO ,  Amélie KUDLA ,  Yves LECLAIRE

IPC: G02B1/14 ,  C09D183/04 ,  B05D3/02 ,  G02C7/02 ,  B05D7/00

CPC classification number: G02B1/14 ,  B05D3/0254 ,  B05D7/546 ,  C09D183/04 ,  G02B1/105 ,  G02C7/02 ,  Y10T428/2495 ,  Y10T428/265 ,  Y10T428/31511

Abstract: The invention relates to an optical article comprising a substrate coated with an abrasion and scratch resistant coating composed of a lower layer and an upper layer that do adhere to each other, the upper layer and the lower layer being layers of cured upper and lower layer compositions, said upper layer composition comprising at least one organosilane, or a hydrolyzate thereof, of formula RnYmSi(X)4−n−m and at least one compound, or a hydrolyzate thereof, of formula M(Z)x, the following ratio being lower than 2.3: Rs =  theoretical   dry   matter   weight   of compounds   I   in   the   upper   layer   composition theoretical   dry   matter   weight   of compounds   II   in   the   upper   layer   composition said lower layer composition comprising at least one organosilane, or a hydrolyzate thereof, of formula R′n′Y′m′Si(X′)4−n′−m′ and, optionally, at least one compound, or a hydrolyzate thereof, of formula M′(Z′)y, the following ratio being higher than 2.3: Ri =  theoretical   dry   matter   weight   of compounds   III   in   the   lower   layer   composition theoretical   dry   matter   extract   of compounds   IV   in   the   lower   layer   composition In the hereabove formulas, M and M′ are metals or metalloids of valences x and y, at least equal to 4, R and R′ groups are monovalent organic groups that are bound to silicon through a carbon atom and that contain at least one epoxy function, X, X′, Z and Z′ groups are hydrolyzable groups, Y and Y′ are monovalent organic groups that are bound to silicon through a carbon atom, n, m, n′ and m′ being integers such that n and n′=1 or 2 with n+m and n′+m′=1 or 2.

Abstract translation: 在上述式中，M和M'是化合价x和y的金属或准金属，至少等于4，R和R'基团是通过碳原子与硅结合且含有至少一个环氧基的单价有机基团 功能X，X'，Z和Z'基团是可水解基团，Y和Y'是通过碳原子与硅结合的一价有机基团，n，m，n'和m'是整数，使得n和n '= 1或2，其中n + m和n'+ m'= 1或2。