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1. 发明申请

US20120128303A1 OPTICAL CONNECTOR AND METHOD FOR ASSEMBLING SAME 有权
标题翻译：光学连接器及其装配方法
公开(公告)号：US20120128303A1
公开(公告)日：2012-05-24
申请号：US13388433
申请日：2010-08-06
申请人： Ryo Koyama , Kazuhide Nakajima , Masaaki Takaya , Toshio Kurashima , Masatoshi Shimizu , Kyoichi Nakamizo
发明人： Ryo Koyama , Kazuhide Nakajima , Masaaki Takaya , Toshio Kurashima , Masatoshi Shimizu , Kyoichi Nakamizo
IPC分类号： G02B6/38 , G02B6/24
CPC分类号： G02B6/3846 , G02B6/3887
摘要： An optical connector having an optical fiber inserted into a connector main body includes a buckling regulating section whose length in an optical fiber insertion direction is formed variable and which regulates a buckling of the optical fiber while becoming short in an optical fiber insertion direction when the optical fiber is inserted into the connector main body. Even if an insertion area is made long, since no buckling of the optical fiber is generated, the buckling regulating section can sufficiently increase an insertion force of the optical fiber. Thus, even when foreign substances such as dusts enter and an insertion resistance increases, the optical fiber can be securely inserted. Further, the buckling regulating section is very advantageous to realize an end surface preparation of the optical fiber making use of the insertion force of the optical fiber such as a coating removing of the optical fiber, and an end surface grinding preparation of the optical fiber.
摘要翻译：具有插入到连接器主体中的光纤的光连接器包括：在光纤插入方向上的长度形成为可变的并且在光纤插入方向变短时调节光纤的翘曲的屈曲调节部，光纤插入连接器主体。即使插入区域长，由于不会产生光纤弯曲，因此翘曲调节部能够充分地增加光纤的插入力。因此，即使当灰尘等异物进入并且插入阻力增加时，也可以牢固地插入光纤。此外，弯曲调节部非常有利于利用光纤的插入力来实现光纤的端面准备，例如光纤的涂层去除以及光纤的端面研磨准备。

2. 发明授权

US5880824A Optical fiber strain measuring apparatus 失效
标题翻译：光纤应变测量仪
公开(公告)号：US5880824A
公开(公告)日：1999-03-09
申请号：US924325
申请日：1997-09-05
申请人： Haruyoshi Uchiyama , Zhixien Li , Yasushi Satoh , Toshio Kurashima
发明人： Haruyoshi Uchiyama , Zhixien Li , Yasushi Satoh , Toshio Kurashima
IPC分类号： G01M11/00 , G01D5/353 , G01L1/24 , G01M11/02 , G01N21/00
CPC分类号： G01L1/242 , G01D5/344 , G01D5/35358
摘要： An object of the present invention is to provide an optical fiber strain measuring apparatus which can perform precise measurement without causing any fluctuation in signal level. To achieve the above object the present invention comprises: a polarization plane rotation device 105 which rotates a plane of polarization of an optical pulse; a photo-directional coupler 106 which projects an optical pulse projected from the polarization plane rotation device 105 into an optical fiber 107 to be measured, and projects out backscattering light produced in the optical fiber 107 to be measured; a polarization plane rotation device 160 which rotates a plane of polarization of a reference light; a light mixing device 109 for mixing the backscattering light projected out from the photo-directional coupler 106 and the reference light projected from the polarization plane rotation device 160; and a signal processing section 111 which detects the mixed light projected from the light mixing device 109, converts the detected light into an electrical signal and subjects the electrical signal to a predetermined operational processing to obtain a measurement waveform.
摘要翻译：本发明的目的是提供一种可以进行精确测量而不引起信号电平波动的光纤应变测量装置。为了实现上述目的，本发明包括：使光脉冲的偏振平面旋转的偏振面旋转装置105; 将从偏振面旋转装置105投射的光脉冲投射到被测光纤107的光定向耦合器106，投射出待测光纤107中产生的后向散射光; 旋转参考光的偏振平面的偏振面旋转装置160; 用于混合从光定向耦合器106射出的后向散射光和从偏振面旋转装置160投影的参考光的光混合装置109; 以及信号处理部111，其检测从光混合装置109射出的混合光，将检测出的光转换为电信号，并对电信号进行预定的运算处理，得到测定波形。

3. 发明授权

US09175946B2 Measuring method of hole diameter, hole position, hole surface roughness, or bending loss of holey optical fiber, manufacturing method of holey optical fiber, and test method of optical line of holey optical fiber 有权
标题翻译：多孔光纤的孔径，孔位置，孔表面粗糙度或弯曲损耗的测量方法，多孔光纤的制造方法以及多孔光纤的光学线路的测试方法
公开(公告)号：US09175946B2
公开(公告)日：2015-11-03
申请号：US13213328
申请日：2011-08-19
申请人： Itaru Ishida , Shoji Tanigawa , Shoichiro Matsuo , Toshio Kurashima , Kazuhide Nakajima , Tomoya Shimizu , Takashi Matsui , Yukihiro Goto
发明人： Itaru Ishida , Shoji Tanigawa , Shoichiro Matsuo , Toshio Kurashima , Kazuhide Nakajima , Tomoya Shimizu , Takashi Matsui , Yukihiro Goto
IPC分类号： G01N21/00 , H04B17/00 , G01B11/08 , G01N21/958 , G01N21/954 , G01B11/24 , G01B11/30
CPC分类号： G01B11/08 , G01B11/24 , G01B11/30 , G01B11/303 , G01B11/306 , G01N21/954 , G01N21/958
摘要： A measuring method of a hole diameter of a holey optical fiber includes calculating an arithmetical mean value I(x) from two backscattering light intensities at a position x of two backscattering light waveforms of the holey optical fiber, in which the two backscattering light waveforms are obtained by OTDR measurement; and obtaining the hole diameter at the position x, based on a correlation between an arithmetical mean value I(x) and an hole diameter of the holey optical fiber that is obtained in advance.
摘要翻译：多孔光纤的孔径的测量方法包括从多孔光纤的两个后向散射光波形的位置x处的两个后向散射光强度计算算术平均值I（x），其中两个后向散射光波形是通过OTDR测量获得; 并且基于预先获得的有孔光纤的算术平均值I（x）和孔径之间的相关性来获得位置x处的孔直径。

4. 发明授权

US07658550B2 Optical fiber, optical fiber connecting method, and optical connector 失效
标题翻译：光纤，光纤连接方式，光连接器
公开(公告)号：US07658550B2
公开(公告)日：2010-02-09
申请号：US12073411
申请日：2008-03-05
申请人： Yoshinori Kurosawa , Bing Yao , Kazumasa Ohsono , Masao Tachikura , Hisanori Nakai , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
发明人： Yoshinori Kurosawa , Bing Yao , Kazumasa Ohsono , Masao Tachikura , Hisanori Nakai , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
IPC分类号： G02B6/36
CPC分类号： G02B6/02347 , G02B6/02 , G02B6/02328 , G02B6/02366 , G02B6/02385 , G02B6/255 , G02B6/3652 , G02B6/381 , G02B6/382
摘要： An optical fiber which, at an optical fiber connecting end having a plurality of voids around the periphery of a core, has a light-permeable substance, such as a resin or glass whose refractive index is lower than that of quartz type substances, filled in the voids adjacent to the connecting end. An optical fiber connecting section where an optical fiber having a plurality of voids in a clad around the periphery of a core is connected to another optical fiber, wherein the optical fiber is connected end-to-end to aforesaid another optical fiber through a refractive index matching agent whose refractive index at the minimum temperature in actual use is lower than that of the core.
摘要翻译：一种光纤，其在具有围绕芯周围的多个空隙的光纤连接端具有透光性物质，例如树脂或玻璃，其折射率低于石英类物质的折射率与连接端相邻的空隙。一种光纤连接部分，其中在芯周围的包层中具有多个空隙的光纤连接到另一光纤，其中光纤通过折射率端对端连接到前述另一光纤匹配剂，其实际使用的最低温度的折射率低于核心的折射率。

5. 发明申请

US20080250816A1 Optical fiber, optical fiber connecting method, and optical connector 有权
公开(公告)号：US20080250816A1
公开(公告)日：2008-10-16
申请号：US12073412
申请日：2008-03-05
申请人： Yoshinori Kurosawa , Bing Yao , Kazumasa Ohsono , Masao Tachikura , Hisanori Nakai , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
发明人： Yoshinori Kurosawa , Bing Yao , Kazumasa Ohsono , Masao Tachikura , Hisanori Nakai , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
IPC分类号： C03B37/023
CPC分类号： G02B6/02347 , G02B6/02 , G02B6/02328 , G02B6/02366 , G02B6/02385 , G02B6/255 , G02B6/3652 , G02B6/381 , G02B6/382
摘要： An optical fiber which, at an optical fiber connecting end having a plurality of voids around the periphery of a core, has a light-permeable substance, such as a resin or glass whose refractive index is lower than that of quartz type substances, filled in the voids adjacent to the connecting end. An optical fiber connecting section where an optical fiber having a plurality of voids in a clad around the periphery of a core is connected to another optical fiber, wherein the optical fiber is connected end-to-end to aforesaid another optical fiber through a refractive index matching agent whose refractive index at the minimum temperature in actual use is lower than that of the core.

6. 发明授权

US07376315B2 Optical fiber, optical fiber connecting method, and optical connector 失效
公开(公告)号：US07376315B2
公开(公告)日：2008-05-20
申请号：US10551949
申请日：2004-06-30
申请人： Yoshinori Kurosawa , Bing Yao , Kazumasa Ohsono , Masao Tachikura , Hisanori Nakai , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
发明人： Yoshinori Kurosawa , Bing Yao , Kazumasa Ohsono , Masao Tachikura , Hisanori Nakai , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
IPC分类号： G02B6/02
CPC分类号： G02B6/02347 , G02B6/02 , G02B6/02328 , G02B6/02366 , G02B6/02385 , G02B6/255 , G02B6/3652 , G02B6/381 , G02B6/382
摘要： An optical fiber which, at an optical fiber connecting end having a plurality of voids around the periphery of a core, has a light-permeable substance, such as a resin or glass whose refractive index is lower than that of quartz type substances, filled in the voids adjacent to the connecting end. An optical fiber connecting section where an optical fiber having a plurality of voids in a clad around the periphery of a core is connected to another optical fiber, wherein the optical fiber is connected end-to-end to aforesaid another optical fiber through a refractive index matching agent whose refractive index at the minimum temperature in actual use is lower than that of the core.

7. 发明申请

US20060257086A1 Optical fiber coiled cord 失效
标题翻译：光纤线圈
公开(公告)号：US20060257086A1
公开(公告)日：2006-11-16
申请号：US10558890
申请日：2004-06-30
申请人： Kazumasa Ohsono , Masao Tachikura , Yoshinori Kurosawa , Yoshikazu Namekawa , Kenji Kawase , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
发明人： Kazumasa Ohsono , Masao Tachikura , Yoshinori Kurosawa , Yoshikazu Namekawa , Kenji Kawase , Toshio Kurashima , Eiji Araki , Katumi Hiramatu
IPC分类号： G02B6/02
CPC分类号： G02B6/4458 , G02B6/02314
摘要： An optical fiber coiled cord having a coil construction in which an optical fiber cord is spirally bent to obtain lengthwise stretchability, wherein the fiber coiled cord is provided with a stretch length control member which restricts lengthwise elongation.
摘要翻译：一种具有线圈结构的光纤线圈，其中光纤线被螺旋弯曲以获得纵向拉伸性，其中纤维卷绕线设置有限制纵向伸长的拉伸长度控制构件。

8. 发明授权

US5136673A Optical cable and its manufacturing method 失效
标题翻译：光缆及其制造方法
公开(公告)号：US5136673A
公开(公告)日：1992-08-04
申请号：US706284
申请日：1991-05-28
申请人： Nobuyuki Yoshizawa , Tsuneo Horiguchi , Koushi Ishihara , Tetsuro Yabuta , Toshio Kurashima , Hidenobu Tada
发明人： Nobuyuki Yoshizawa , Tsuneo Horiguchi , Koushi Ishihara , Tetsuro Yabuta , Toshio Kurashima , Hidenobu Tada
IPC分类号： G02B6/00 , G02B6/44
CPC分类号： G02B6/448 , G02B6/4408 , G02B6/4413 , G02B6/4491
摘要： An optical cable has a center member, around which a plurality of coated optical fibers are tightly stranded. Each optical fiber is given uneven strains in its longitudinal direction. Adhesive resin is applied to surround each of the coated optical fibers and binds each of them to the center member to make an integral optical unit when cured.
摘要翻译：光缆具有中心构件，多个涂覆的光纤围绕该中心构件紧密地绞合。每个光纤在其纵向上被赋予不均匀的应变。施加粘合树脂以围绕每个涂覆的光纤并且将它们中的每一个粘合到中心构件上以在固化时形成一体的光学单元。

9. 发明授权

US08702317B2 Optical connector and method for assembling same 有权
标题翻译：光连接器及其组装方法
公开(公告)号：US08702317B2
公开(公告)日：2014-04-22
申请号：US13388433
申请日：2010-08-06
申请人： Ryo Koyama , Kazuhide Nakajima , Masaaki Takaya , Toshio Kurashima , Masatoshi Shimizu , Kyoichi Nakamizo
发明人： Ryo Koyama , Kazuhide Nakajima , Masaaki Takaya , Toshio Kurashima , Masatoshi Shimizu , Kyoichi Nakamizo
IPC分类号： G02B6/38 , G02B6/36
CPC分类号： G02B6/3846 , G02B6/3887
摘要： An optical connector having an optical fiber inserted into a connector main body includes a buckling regulating section whose length in an optical fiber insertion direction is formed variable and which regulates a buckling of the optical fiber while becoming short in an optical fiber insertion direction when the optical fiber is inserted into the connector main body. Even if an insertion area is made long, since no buckling of the optical fiber is generated, the buckling regulating section can sufficiently increase an insertion force of the optical fiber. Thus, even when foreign substances such as dusts enter and an insertion resistance increases, the optical fiber can be securely inserted. Further, the buckling regulating section is very advantageous to realize an end surface preparation of the optical fiber making use of the insertion force of the optical fiber such as a coating removing of the optical fiber, and an end surface grinding preparation of the optical fiber.
摘要翻译：具有插入到连接器主体中的光纤的光连接器包括：在光纤插入方向上的长度形成为可变的并且在光纤插入方向变短时调节光纤的翘曲的屈曲调节部，光纤插入连接器主体。即使插入区域长，由于不会产生光纤弯曲，因此翘曲调节部能够充分地增加光纤的插入力。因此，即使当灰尘等异物进入并且插入阻力增加时，也可以牢固地插入光纤。此外，弯曲调节部非常有利于利用光纤的插入力来实现光纤的端面准备，例如光纤的涂层去除以及光纤的端面研磨准备。

10. 发明授权

US08181487B2 Optical fiber preform manufacturing method 有权
标题翻译：光纤预制棒制造方法
公开(公告)号：US08181487B2
公开(公告)日：2012-05-22
申请号：US12875167
申请日：2010-09-03
申请人： Ryuichi Sugizaki , Naomi Kumano , Iwao Shimotakahara , Harumi Inaba , Takeshi Yagi , Tomoya Shimizu , Toshio Kurashima , Kazuhide Nakajima
发明人： Ryuichi Sugizaki , Naomi Kumano , Iwao Shimotakahara , Harumi Inaba , Takeshi Yagi , Tomoya Shimizu , Toshio Kurashima , Kazuhide Nakajima
IPC分类号： C03B37/022
CPC分类号： C03B37/01231 , C03B37/0122 , C03B37/01234 , C03B2203/14 , C03B2203/42
摘要： An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits.
摘要翻译：一种光纤预制棒的制造方法，包括：在圆筒状的预成型件的径向上支撑钻孔夹具; 沿着预成型件的纵向方向移动钻具; 并且形成多个狭缝，每个狭缝沿长度方向延伸，每个狭缝从预成型件的外侧朝向预成型件的中心，以及多个孔，每个孔沿纵向延伸并且各自与多个孔中的一个连接在所述多个狭缝中的一个狭缝的深度方向上的狭缝。

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