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公开(公告)号:US06729777B2
公开(公告)日:2004-05-04
申请号:US10026445
申请日:2001-12-27
IPC分类号: G02B6255
CPC分类号: G02B6/2551 , G02B6/02242 , G02B6/02261 , G02B6/03644
摘要: A method of splicing optical fibers is provided to reduce the splicing loss of the first and second optical fibers having different MFDs from each other. In a pre-fusion heating step, the MFD at the adjacent end face of the optical fiber having larger MFD is enlarged by heating a portion including the adjacent end face thereof so as to diffuse a dopant. After the pre-fusion heating step, fusion-splicing of the first and the second optical fibers is performed. Thereafter, during the post-fusion heating step, the dopant is diffused by heating a portion including the fusion-spliced part between the first and the second optical fibers.
摘要翻译: 提供了一种拼接光纤的方法,以减少具有不同MFD的第一和第二光纤的拼接损耗。 在预融合加热步骤中,通过加热包含其相邻端面的部分以扩散掺杂剂,使具有较大MFD的光纤的相邻端面处的MFD扩大。 在预融合加热步骤之后,进行第一和第二光纤的熔接。 此后,在熔融后加热步骤期间,通过加热包括第一和第二光纤之间的熔接部分的部分来扩散掺杂剂。
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公开(公告)号:US06644870B2
公开(公告)日:2003-11-11
申请号:US10103134
申请日:2002-03-22
申请人: Noriko Iwata , Takatoshi Kato , Keiichiro Fukuda
发明人: Noriko Iwata , Takatoshi Kato , Keiichiro Fukuda
IPC分类号: G02B6255
CPC分类号: G02B6/2551 , G02B6/02004 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/2552 , G02B6/29377
摘要: The present invention relates to an optical fiber transmission line having a structure offering superior connection loss characteristics at the fusion-spliced position between optical fibers. This optical fiber transmission line has at least first and second optical fibers that are fusion-spliced. Each of these first and second optical fibers has a core region doped with 10 mol % or more of Ge and has a mode field diameter with a minimum value of 7 &mgr;m or less at the wavelength of 1550 nm. The difference between the minimum mode diameter of the first optical fiber and that of the second optical fiber is 1 &mgr;m or less.
摘要翻译: 本发明涉及一种具有在光纤之间的熔接位置提供优异的连接损耗特性的结构的光纤传输线。 该光纤传输线至少具有熔接的第一和第二光纤。 这些第一和第二光纤中的每一个具有掺杂有10mol%以上的Ge的芯区域,并且在1550nm的波长下具有最小值为7μm或更小的模场直径。 第一光纤的最小模式直径与第二光纤的最小模式直径的差为1um或更小。
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公开(公告)号:US5416180A
公开(公告)日:1995-05-16
申请号:US149530
申请日:1993-11-09
申请人: Yasuhiro Yokoyama , Noriko Iwata , Eri Ito , Shoji Ichinohe , Toshio Yamazaki
发明人: Yasuhiro Yokoyama , Noriko Iwata , Eri Ito , Shoji Ichinohe , Toshio Yamazaki
IPC分类号: C08F220/22 , C08F20/22 , C08F20/26 , C08F30/08 , C08F220/28 , C08F230/08 , G02B1/04 , G02C7/04 , C08F18/20
CPC分类号: G02B1/043 , C08F220/28 , C08F230/08
摘要: A soft ocular lens material obtained by copolymerizing polymerizable components comprising (A) a fluorine-containing (meth)acrylate having a hydroxyl group of the formula (I): ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is a C.sub.5-15 perfluoroalkyl group, and n is 0 or 1, (B) a hydrophilic monomer, and (C) at least one monomer selected from the group consisting of silicon-containing (meth)acrylates and siloxane-containing styrene derivatives, wherein the ratio of the amount of the fluorine-containing (meth)acrylate (A) to the amount of the hydrophilic monomer (B) is from 20/80 to 70/30 by weight ratio, and the ratio of the total amount of the fluorine-containing (meth)acrylate (A) and the hydrophilic monomer (B) to the amount of the monomer (C) is from 30/70 to 90/10 by weight ratio.
摘要翻译: 通过使包含(A)具有式(I)的羟基的含氟(甲基)丙烯酸酯:其中R 1为氢原子或甲基的式(I)表示的可聚合组分共聚合得到的柔软的眼用透镜材料, R2是C5-15全氟烷基,n是0或1,(B)亲水性单体,和(C)至少一种选自含硅(甲基)丙烯酸酯和含硅氧烷的苯乙烯衍生物的单体 其中,所述含氟(甲基)丙烯酸酯(A)的量与所述亲水性单体(B)的配合量的比例为20/80〜70/30重量比, 含氟(甲基)丙烯酸酯(A)和亲水性单体(B)相对于单体(C)的含量为30/70〜90/10重量比。
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公开(公告)号:US5346946A
公开(公告)日:1994-09-13
申请号:US111452
申请日:1993-08-25
申请人: Yasuhiro Yokoyama , Noriko Iwata , Eri Ito , Ichiro Ando , Shoji Ichinohe , Toshio Yamazaki
发明人: Yasuhiro Yokoyama , Noriko Iwata , Eri Ito , Ichiro Ando , Shoji Ichinohe , Toshio Yamazaki
IPC分类号: A61L27/00 , A61L27/16 , C08F290/00 , C08F290/06 , C08F299/08 , C08G18/67 , G02B1/04 , G02C7/04 , C08F30/08
CPC分类号: A61L27/16 , A61F2/16 , C08F290/068 , C08G18/672 , G02B1/041 , G02B1/043 , A61L2430/16
摘要: An ocular lens material made of a copolymer comprising, as main copolymerizable components, (A) a polysiloxane macromonomer having polymerizable groups bonded via one or more urethane bonds to the siloxane main chain and (B) an alkyl (meth)acrylamide, wherein the weight ratio of the polysiloxane macromonomer to the alkyl (meth)acrylamide is from 5/95 to 90/10.
摘要翻译: 一种由共聚物制成的眼透镜材料,其包含作为主要可共聚组分的(A)具有通过一个或多个氨基甲酸酯键与硅氧烷主链键合的可聚合基团的聚硅氧烷大分子单体和(B)(甲基)丙烯酰胺烷基酯,其中重量 聚硅氧烷大分子单体与(甲基)丙烯酸烷基酯的比例为5/95〜90/10。
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公开(公告)号:US5516467A
公开(公告)日:1996-05-14
申请号:US275529
申请日:1994-07-15
CPC分类号: D06P1/28 , B29D11/00317 , D06P3/343 , G02C7/021
摘要: A process for producing a tinted contact lens, which includes dissolving a soluble vat dye in a monomer capable of dissolving the soluble vat dye therein, mixing the monomer having the soluble vat dye dissolved therein and other monomers, polymerizing the monomer mixture and processing the resulting polymer into a shape of a contact lens.
摘要翻译: 一种着色隐形眼镜的制造方法,其包括将可溶性瓮染料溶解在能够溶解可溶性瓮染料的单体中,将其中溶解有瓮染料的单体和其它单体混合,使单体混合物聚合并处理所得的 聚合物形成隐形眼镜的形状。
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公开(公告)号:US5416132A
公开(公告)日:1995-05-16
申请号:US110946
申请日:1993-08-24
申请人: Yasuhiro Yokoyama , Noriko Iwata , Eri Ito , Ichiro Ando , Shoji Ichinohe , Toshio Yamazaki
发明人: Yasuhiro Yokoyama , Noriko Iwata , Eri Ito , Ichiro Ando , Shoji Ichinohe , Toshio Yamazaki
IPC分类号: A61L27/00 , C08F290/00 , C08F290/06 , C08F299/08 , G02B1/04 , G02C7/04 , C08F230/08 , C07F7/08 , C07F7/10 , C08F271/00
CPC分类号: C08F290/068 , G02B1/043
摘要: An ocular lens material made of a copolymer consisting essentially of (A) a polysiloxane macromonomer having polymerizable groups bonded by one or more urethane bonds to the siloxane main chain and (B) an alkyl (meth)acrylamide, wherein the weight ratio of the polysiloxane macromonomer to the alkyl (meth)acrylamide ranges from 10:90 to 90:10.
摘要翻译: 一种由以下组成的共聚物制成的眼透镜材料:(A)具有通过一个或多个氨基甲酸酯键与硅氧烷主链结合的可聚合基团的聚硅氧烷大分子单体和(B)(甲基)丙烯酰胺烷基酯,其中聚硅氧烷 大分子单体与(甲基)丙烯酸烷基酯的摩尔比为10:90〜90:10。
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公开(公告)号:US5741830A
公开(公告)日:1998-04-21
申请号:US600877
申请日:1996-02-13
申请人: Miyuki Kamiya , Naotaka Kamiya , Noriko Iwata , Yasushi Yamamoto , Yasuo Tarumi
发明人: Miyuki Kamiya , Naotaka Kamiya , Noriko Iwata , Yasushi Yamamoto , Yasuo Tarumi
IPC分类号: C08F212/14 , C08F220/54 , G02B1/04 , G02C7/04
CPC分类号: G02B1/043 , C08F212/14 , C08F220/54
摘要: A water-absorptive soft contact lens comprising a polymer prepared by polymerizing a monomer mixture comprising (A) a fluorine-containing styrene derivative represented by the general formula (I): ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, m is an integer of 1 to 3 and n is 0 or an integer of 1 to 7, and (B) N, N-dimethyl(meth)acrylamide. The water-absorptive soft contact lens has excellent oxygen permeability, high mechanical strength and excellent flexibility independent of water content.
摘要翻译: 一种吸水软性隐形眼镜,其包含通过聚合单体混合物制备的聚合物,所述单体混合物包含(A)由通式(I)表示的含氟苯乙烯衍生物:其中R 1为氢原子或甲基, m为1〜3的整数,n为0或1〜7的整数,(B)N,N-二甲基(甲基)丙烯酰胺。 吸水软性隐形眼镜具有优异的透氧性,高机械强度和优异的柔韧性,独立于含水量。
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公开(公告)号:US5426133A
公开(公告)日:1995-06-20
申请号:US118648
申请日:1993-09-10
IPC分类号: C08F8/12 , C08F16/02 , C08F20/02 , C08F26/10 , C08F216/06 , C08F218/02 , C08F218/04 , C08F222/06 , C08F226/10 , G02B1/04 , G02C7/04 , C08L29/00
CPC分类号: G02B1/043 , C08F8/12 , C08J5/18 , C08F2810/20
摘要: 1. A water-absorptive contact lens obtained by saponification of a copolymer composed essentially of:(A) from 1 to 30% by weight of a (meth)acrylate polymer having at least one polymerizable group per molecule on an average obtained by copolymerizing (a) an alkyl (meth)acrylate and (b) a monomer having at least two polymerizable groups per molecule, as the main components;(B) from 1 to 10% by weight of a vinyl monomer selected from the group consisting of maleic acid esters and N-vinyl lactams;(C) from 50 to 98% by weight of a fatty acid vinyl ester; and(D) from 0.02 to 10% by weight of a cross linking monomer.
摘要翻译: 1.一种吸收性隐形眼镜,其通过共聚物皂化获得,所述共聚物基本上由以下组成:(A)1〜30重量%的每分子具有至少一个可聚合基团的(甲基)丙烯酸酯聚合物,其平均通过共聚 a)(甲基)丙烯酸烷基酯和(b)每分子具有至少两个可聚合基团的单体作为主要组分; (B)1至10重量%的选自马来酸酯和N-乙烯基内酰胺的乙烯基单体; (C)50〜98重量%的脂肪酸乙烯基酯; 和(D)0.02〜10重量%的交联单体。
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公开(公告)号:US4954586A
公开(公告)日:1990-09-04
申请号:US460662
申请日:1990-01-03
申请人: Nobuyuki Toyoshima , Takanori Shibata , Atsushi Hirashima , Ichiro Ando , Noriko Iwata , Hiroshi Yoshioka , Akinari Itagaki , Toshio Yamazaki
发明人: Nobuyuki Toyoshima , Takanori Shibata , Atsushi Hirashima , Ichiro Ando , Noriko Iwata , Hiroshi Yoshioka , Akinari Itagaki , Toshio Yamazaki
IPC分类号: C08F220/22 , C08F230/08 , C08F283/12 , C08F290/06 , C08F290/14 , G02B1/04
CPC分类号: C08F290/148 , C08F220/22 , C08F230/08 , C08F283/124 , C08F290/068 , G02B1/043
摘要: A soft ocular lens material is formed of a copolymer consisting essentially of:(A) from 5 to 70 parts by weight of a fluorine containing (meth)acrylate;(B) from 5 to 60 parts by weight of an alkyl (meth)acrylate;(C) from 3 to 45 parts by weight of a polysiloxane macromonomer having pllymerizable groups at both terminals; and(D) from 3 to 40 parts by weight of a polysiloxane macromonomer having polymerizable groups bonded via one or two urethane bonds to the siloxane main chain.
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