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公开(公告)号：US20180059333A1
公开(公告)日：2018-03-01
申请号：US15792151
申请日：2017-10-24
Applicant: TOTO LTD.
Inventor： Sho KONDO , Satoshi HAKOZAKI , Hirotsugu AGATSUMA
CPC classification number: G02B6/3846 , G02B6/00 , G02B6/3822 , G02B6/3861 , G02B6/3863 , G02B6/421 , G02B6/4292
Abstract: An optical receptacle, includes a fiber stub having an optical fiber with a core and cladding, a ferrule with a through-hole fixing the optical fiber, a bonding agent fixing the optical fiber in the through hole and a holder holding the fiber stub. The optical fiber is disposed inside the through-hole over an entire region of the optical fiber, and includes a portion in which a core diameter and a fiber outer diameter decrease gradually toward an end surface of the ferrule on a side opposite to a side to be optically connected to a plug ferrule. The bonding agent is filled into a space between the optical fiber and an inner wall of the through-hole.
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公开(公告)号：US20160299297A1
公开(公告)日：2016-10-13
申请号：US15188294
申请日：2016-06-21
Applicant: TOTO LTD.
Inventor： Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Satoshi KANEYUKI
CPC classification number: G02B6/3847 , G02B6/262 , G02B6/3825 , G02B6/3846 , G02B6/3863 , G02B6/3866 , G02B6/3874
Abstract: An optical receptacle including: a fiber stub having a ferrule containing an optical fiber conducting light; a holder holding the fiber stub; and a sleeve. The ends of the sleeve respectively holding a tip of the fiber stub and a plug ferrule inserted into the optical receptacle. The ferrule includes a foreign matter movement suppressor in an end surface thereof which is polished into a convex spherical configuration on a side to be connected to the plug ferrule, and which suppresses movement of foreign matter moving, due to inserting and removing the plug ferrule, from an outer circumferential portion of the ferrule toward a central portion of the end surface.
Abstract translation: 一种光学插座，包括：具有包含导光光纤的套圈的光纤短截线; 夹持纤维束的支架; 和袖子。 分别保持纤维短截线的尖端的套筒的端部和插入光学插座的插头套圈。 套圈包括其端面中的异物移动抑制器，其在与插头套圈连接的一侧被抛光成凸形球形，并且由于插入和移除插头套圈而抑制异物移动的移动， 从套圈的外周部朝向端面的中央部。
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Patent Agency Ranking
公开(公告)号：US20160154187A1
公开(公告)日：2016-06-02
申请号：US14900451
申请日：2014-06-27
Applicant: TOTO LTD.
Inventor： Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI
IPC: G02B6/38
CPC classification number: G02B6/3846 , G02B6/382 , G02B6/3834 , G02B6/3843 , G02B6/3855 , G02B6/3861 , G02B6/3863 , G02B6/421 , G02B6/4292
Abstract: According to an aspect of the invention, an optical receptacle, comprising: a fiber stub including an optical fiber, a ferrule, and an elastic member, the optical fiber including cladding and a core for conducting light, the ferrule having a through-hole fixing the optical fiber, the elastic member being filled into the through-hole of the ferrule with the optical fiber; and a holder holding the fiber stub, the through-hole of the ferrule including a small diameter portion and a large diameter portion, the optical fiber being disposed in the small diameter portion, the large diameter portion being provided on a side opposite to a side to be optically connected to a plug ferrule, the optical fiber being disposed in the small diameter portion inside the through-hole of the ferrule over the entire region of the optical fiber, the elastic member having substantially the same refractive index as the core, being filled into the small diameter portion and the large diameter portion, and being polished to cause at least a portion of the elastic member to be a flat surface portion at an end surface of the fiber stub on the side opposite to the side to be optically connected to the plug ferrule. By disposing the optical fiber in the small diameter portion of the through-hole of the ferrule over the entire region of the optical fiber, the breaking and/or cracking of the optical fiber and the decrease of the coupling efficiency can be prevented. Further, by setting the end surface of the elastic member filled into the through-hole of the ferrule to be a flat surface, the decrease of the coupling efficiency due to reflections is prevented without performing processing of the optical fiber end surface; and economic production is made possible.
Abstract translation: 根据本发明的一个方面，一种光学插座，包括：包括光纤，套圈和弹性构件的光纤短截线，所述光纤包括包层和用于传导光的芯，所述套圈具有通孔固定 光纤，弹性部件用光纤填充到套圈的通孔中; 以及保持所述纤维短截线体的保持架，所述套圈的通孔包括小径部和大直径部，所述光纤配置在所述小直径部，所述大径部设置在与所述纤维短边相反侧的一侧 光纤连接到插头套圈，光纤在光纤的整个区域上设置在套管的通孔内部的小直径部分中，弹性部件具有与芯部基本相同的折射率， 填充到小直径部分和大直径部分中，并且被抛光以使得至少一部分弹性部件在纤维短截端的与要被光学连接的一侧相反的一侧的端面处为平坦表面部分 到插头套圈。 通过将光纤布置在光纤的整个区域上的套圈的通孔的小直径部分中，可以防止光纤的断裂和/或破裂以及耦合效率的降低。 此外，通过将填充在套圈的通孔中的弹性构件的端面设置为平坦表面，防止由于反射而引起的耦合效率的降低而不执行光纤端表面的处理; 经济生产成为可能。
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公开(公告)号：US20210055484A1
公开(公告)日：2021-02-25
申请号：US17094148
申请日：2020-11-10
Applicant: TOTO LTD.
Inventor： Kohei TOMINAGA , Satoshi KANEYUKI , Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO
Abstract: A pigtail-type optical receptacle includes a tubular ferrule having a through-hole extending in an axial direction, an optical fiber inserted into the through-hole such that part of the optical fiber extends outside the ferrule, a protective member covering the part of the optical fiber extending outside the ferrule, a tubular sleeve mounted on a front end side, outer surface of the ferrule, a holder tubular having holding the rear end side of the ferrule, and a tubular housing covering the ferrule and at least a portion of the sleeve. The ferrule through-hole includes first and second regions, the second region being disposed rearward of the first region, and the housing engaging the outer surface of the holder rearward of the first region.
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公开(公告)号：US20210026080A1
公开(公告)日：2021-01-28
申请号：US17067081
申请日：2020-10-09
Applicant: TOTO LTD.
Inventor： Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO , Satoshi KANEYUKI , Kohei TOMINAGA , Arato SUZUKI
Abstract: An optical receptacle includes a fiber stub, a block, and a first elastic member. The fiber stub includes an optical fiber, and a ferrule provided on one end side of the optical fiber. The block is separated from the ferrule and has one end surface, an other end surface, and a through-hole extending from the one end surface to the other end surface. A portion of the optical fiber protrudes from the ferrule and is inserted into the through-hole. The first elastic member fixes the optical fiber in the through-hole. The portion of the optical fiber includes first to third portions. The second portion is provided between the first portion and the third portion. A core diameter at the first portion is smaller than a core diameter at the third portion. A core diameter at the second portion increases from the first portion toward the third portion.
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公开(公告)号：US20170146747A1
公开(公告)日：2017-05-25
申请号：US15402573
申请日：2017-01-10
Applicant: TOTO LTD.
Inventor： Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI
CPC classification number: G02B6/3846 , G02B6/382 , G02B6/3834 , G02B6/3843 , G02B6/3855 , G02B6/3861 , G02B6/3863 , G02B6/421 , G02B6/4292
Abstract: According to an aspect of the invention, an optical receptacle, comprising: a fiber stub including an optical fiber, a ferrule, and an elastic member, the optical fiber including cladding and a core for conducting light, the ferrule having a through-hole fixing the optical fiber, the elastic member being filled into the through-hole of the ferrule with the optical fiber; and a holder holding the fiber stub, the through-hole of the ferrule including a small diameter portion and a large diameter portion, the optical fiber being disposed in the small diameter portion, the large diameter portion being provided on a side opposite to a side to be optically connected to a plug ferrule, the optical fiber being disposed in the small diameter portion inside the through-hole of the ferrule over the entire region of the optical fiber, the elastic member having substantially the same refractive index as the core, being filled into the small diameter portion and the large diameter portion, and being polished to cause at least a portion of the elastic member to be a flat surface portion at an end surface of the fiber stub on the side opposite to the side to be optically connected to the plug ferrule. By disposing the optical fiber in the small diameter portion of the through-hole of the ferrule over the entire region of the optical fiber, the breaking and/or cracking of the optical fiber and the decrease of the coupling efficiency can be prevented. Further, by setting the end surface of the elastic member filled into the through-hole of the ferrule to be a flat surface, the decrease of the coupling efficiency due to reflections is prevented without performing processing of the optical fiber end surface; and economic production is made possible.
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公开(公告)号：US20160131850A1
公开(公告)日：2016-05-12
申请号：US14900711
申请日：2014-06-26
Applicant: TOTO LTD.
Inventor： Sho KONDO , Satoshi HAKOZAKI , Hirotsugu AGATSUMA
CPC classification number: G02B6/3846 , G02B6/00 , G02B6/3822 , G02B6/3861 , G02B6/3863 , G02B6/421 , G02B6/4292
Abstract: According to an aspect of the invention, an optical receptacle, comprising: a fiber stub including an optical fiber, a ferrule, and an elastic member, the optical fiber including cladding and a core conducting light, the ferrule having a through-hole fixing the optical fiber, the elastic member fixing the optical fiber in the ferrule; and a holder holding the fiber stub, the optical fiber being disposed inside the through-hole over an entire region of the optical fiber, the optical fiber including a portion, a core diameter and a fiber outer diameter in the portion decreasing gradually toward an end surface of the ferrule on a side opposite to a side to be optically connected to a plug ferrule, the elastic member being filled into a space between the optical fiber and an inner wall of the through-hole. By making the core small at the optical element side end surface of the optical fiber while contributing to shortening the optical module total length, the strength of the deformable portion of the optical fiber can be ensured; the occurrence of breaking and cracks can be prevented; and the decrease of the coupling efficiency can be prevented by suppressing the movement of the optical fiber when using the optical module.
Abstract translation: 根据本发明的一个方面，一种光学插座，包括：包括光纤，套圈和弹性构件的光纤短截线，所述光纤包括包层和芯导电光，所述套圈具有通孔， 光纤，将光纤固定在套圈中的弹性部件; 以及保持所述光纤短截线体的保持器，所述光纤在所述光纤的整个区域内配置在所述通孔的内部，所述光纤包括所述部分中的部分，芯径和所述部分中的纤维外径朝向端部逐渐减小 在与光学连接到插头套圈的一侧相反的一侧上的套圈的表面，弹性构件被填充到光纤和通孔的内壁之间的空间中。 通过在光纤的光学元件侧端面使芯体变小，同时有助于缩短光学模块的总长度，可以确保光纤的可变形部分的强度; 可以防止破裂和裂纹的发生; 并且通过在使用光学模块时抑制光纤的移动，可以防止耦合效率的降低。
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