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公开(公告)号：EP3992696A1
公开(公告)日：2022-05-04
申请号：EP20830871.8
申请日：2020-06-23
摘要： The present invention relates to a method for producing a polarizing lens having a high luminous transmittance and degree of polarization with astigmatism kept low, and a polarizing film and a polarizing lens. The method for producing a polarizing lens comprises: contracting a polarizing film at a maximum rate of contraction of 14% or more and 30% or less under moist conditions; processing the polarizing film into a curve; drying the polarizing film; providing a mold having a cavity in which the polarizing film is placed in the inside; injecting a curable composition into the cavity; curing the curable composition to obtain a polarizing lens in which the polarizing film is placed in the inside; and annealing the polarizing lens.
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公开(公告)号：EP4354189A1
公开(公告)日：2024-04-17
申请号：EP22820345.1
申请日：2022-06-10
发明人： KAWAKAMI, Hironori , MATSUE, Aoi , KOBAYASHI, Kei
IPC分类号： G02B5/23 , C07D311/92 , G02C7/10
CPC分类号： C07D311/92 , G02C7/10 , G02B5/23
摘要： There is provided a photochromic compound represented by the following General Formula 1. In General Formula 1, R1 and R2 are bonded to each other to form a ring structure together with the carbon atom at position 13 of indeno-fused naphthopyran, R3 to R6 each independently represent a hydrogen atom or an electron-attracting group, and one or more of R3 to R6 represent an electron-attracting group, R8 and R9 each independently represent a hydrogen atom or an electron-donating group, and at least one of R8 and R9 represents an electron-donating group, R7, R10, A and A' each independently represent a hydrogen atom or a substituent.
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公开(公告)号：EP4198583A1
公开(公告)日：2023-06-21
申请号：EP21911103.6
申请日：2021-12-24
IPC分类号： G02B5/23 , C07D311/78 , C09K9/02 , G02B1/04 , G02C7/10
摘要： A photochromic composition containing one or more compounds represented by General Formula A, one or more compounds represented by General Formula B, and one or more compounds represented by General Formula C is provided. In General Formula A, R 1 to R 6 , B 1 , and B 2 each independently represent a hydrogen atom or a substituent. In General Formula B, R 7 to R 12 , B 3 , and B 4 each independently represent a hydrogen atom or a substituent, and R 13 and R 14 each independently represent an electron-donating group. In General Formula C, R 15 to R 20 , B 5 , and B 6 each independently represent a hydrogen atom or a substituent, and one of R 21 and R 22 represents a hydrogen atom and the other represents an electron-donating group.
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公开(公告)号：EP3992698A1
公开(公告)日：2022-05-04
申请号：EP20833080.3
申请日：2020-06-23
摘要： The present invention relates to a method for producing a polarizing lens having a high luminous transmittance and degree of polarization with astigmatism kept low, and a polarizing film and a polarizing lens. The method for producing a polarizing lens comprises: contracting a polarizing film at a maximum rate of contraction of 5% or more and 30% or less under moist conditions; processing the polarizing film into a curve; drying the polarizing film at temperature T 1 ; providing a mold having a cavity in which the polarizing film is placed in the inside; injecting a curable composition into the cavity; curing the curable composition to obtain a polarizing lens in which the polarizing film is placed in the inside; and annealing the polarizing lens at temperature T 2 , wherein a relationship between the temperature T 1 and the temperature T 2 satisfies the following expression (1): T 1 > T 2 ... (1).
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公开(公告)号：EP3992697A1
公开(公告)日：2022-05-04
申请号：EP20831185.2
申请日：2020-06-23
摘要： The present invention relates to a novel polarizing lens. The polarizing lens comprises a lens base material having: a first lens element part constituting an object-side surface; a second lens element part constituting an eyeball-side surface; and a polarizing film disposed between the first lens element part and the second lens element part, wherein the polarizing lens has a luminous transmittance of 30% or more, a degree of polarization of 90% or more, and astigmatism of 0.14 or less.
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