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公开(公告)号：FR2762098A1
公开(公告)日：1998-10-16
申请号：FR9704427
申请日：1997-04-10
Applicant: ESSILOR INT
Inventor： CABEZA STEPHANE , GRAND CLEMENT DIDIER , KOIKE YASUHIRO
Abstract: The invention proposes a transparent article with a radial refractive index gradient comprising a matrix of a first transparent polymer material with a first refractive index n1, as well as a first Abbe number nu 1. A second transparent polymer material is diffused into the first polymer material to obtain the radial index gradient. The second material comprises a second refractive index n2, different from the first refractive index, as well as a second Abbe number nu 2. The invention is characterized in that it further comprises an effective quantity of a modification agent of the Abbe number, which lowers by at least 10 %, preferably 15 %, or better 20 % the value of the Abbe number of whichever of the first or second polymer materials has the lower refractive index. The application of the invention is the manufacture of contact lenses.
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公开(公告)号：FR2762098B1
公开(公告)日：1999-05-21
申请号：FR9704427
申请日：1997-04-10
Applicant: ESSILOR INT
Inventor： CABEZA STEPHANE , GRAND CLEMENT DIDIER , KOIKE YASUHIRO
Abstract: The transparent article with radial gradient index, according to the invention, comprises a matrix made of a first transparent polymer having a first refractive index n1 and a first Abbe number &ngr;1, a second transparent polymer, diffused into the first polymer in order to produce the radial gradient index and having a second refractive index n2, different than the first refractive index, and a second Abbe number &ngr;2, characterized in that it furthermore comprises an effective amount of an Abbe number modifier agent which reduces by at least 10%, preferably by at least 15%, and more preferably by at least 20%, the value of the Abbe number of that of the first or second polymer which has the refractive index with lower value.
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Patent Agency Ranking
公开(公告)号：DE69810455T2
公开(公告)日：2003-10-23
申请号：DE69810455
申请日：1998-03-26
Applicant: ESSILOR INT
Inventor： KOIKE YASUHIRO , CABEZA STEPHANE , GRAND-CLEMENT DIDIER
Abstract: The transparent article with radial gradient index, according to the invention, comprises a matrix made of a first transparent polymer having a first refractive index n1 and a first Abbe number &ngr;1, a second transparent polymer, diffused into the first polymer in order to produce the radial gradient index and having a second refractive index n2, different than the first refractive index, and a second Abbe number &ngr;2, characterized in that it furthermore comprises an effective amount of an Abbe number modifier agent which reduces by at least 10%, preferably by at least 15%, and more preferably by at least 20%, the value of the Abbe number of that of the first or second polymer which has the refractive index with lower value.
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公开(公告)号：DE69810455D1
公开(公告)日：2003-02-06
申请号：DE69810455
申请日：1998-03-26
Applicant: ESSILOR INT
Inventor： KOIKE YASUHIRO , CABEZA STEPHANE , GRAND-CLEMENT DIDIER
Abstract: The transparent article with radial gradient index, according to the invention, comprises a matrix made of a first transparent polymer having a first refractive index n1 and a first Abbe number &ngr;1, a second transparent polymer, diffused into the first polymer in order to produce the radial gradient index and having a second refractive index n2, different than the first refractive index, and a second Abbe number &ngr;2, characterized in that it furthermore comprises an effective amount of an Abbe number modifier agent which reduces by at least 10%, preferably by at least 15%, and more preferably by at least 20%, the value of the Abbe number of that of the first or second polymer which has the refractive index with lower value.
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公开(公告)号：FR2793038B1
公开(公告)日：2002-01-25
申请号：FR9905466
申请日：1999-04-29
Applicant: ESSILOR INT
Inventor： JIANG PEIQI , CABEZA STEPHANE , MENDUNI GILBERT
Abstract: The composite ophthalmic lens (1) comprises a first layer (2), at least 200 micrometers thick, forming a front part of said lens, of a first polymeric material of refractive index higher than or equal to 1.60 and having a front face (4) constituting a front optical surface S1, and a second layer (3), at least 200 micrometers thick, of a second polymeric material forming a rear part of said lens and having a rear face (6) constituting a rear optical surface S2, the interface (5) between these two layers constituting an optical surface S3 parallel to the rear optical surface S2.
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公开(公告)号：AU4411000A
公开(公告)日：2000-11-17
申请号：AU4411000
申请日：2000-04-28
Applicant: ESSILOR INT
Inventor： JIANG PEIQI , CABEZA STEPHANE , MENDUNI GILBERT
Abstract: The composite ophthalmic lens (1) comprises a first layer (2), at least 200 micrometers thick, forming a front part of said lens, of a first polymeric material of refractive index higher than or equal to 1.60 and having a front face (4) constituting a front optical surface S1, and a second layer (3), at least 200 micrometers thick, of a second polymeric material forming a rear part of said lens and having a rear face (6) constituting a rear optical surface S2, the interface (5) between these two layers constituting an optical surface S3 parallel to the rear optical surface S2.
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公开(公告)号：FR2793038A1
公开(公告)日：2000-11-03
申请号：FR9905466
申请日：1999-04-29
Applicant: ESSILOR INT
Inventor： JIANG PEIQI , CABEZA STEPHANE , MENDUNI GILBERT
Abstract: The invention concerns a composite ophthalmic lens (1) comprising a first film (2) at least 200 micrometers thick, forming a front part of said lens, of a polymer material with a refractive index not less that 1.60 and having a front face (4) forming a front optical surface (S1), and a second film (3), at least 200 micrometers thick, of a second polymer material forming the rear part of said lens and having a rear face (6) forming a rear optical surface (S2), the interface (5) between said two films forming an optical surface (S3) parallel to the rear optical surface (S2). The invention is applicable to lenses of spectacles.
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