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公开(公告)号：US20210208343A1
公开(公告)日：2021-07-08
申请号：US16068875
申请日：2017-03-15
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi , Hirotaka Asada
IPC: G02B6/38
Abstract: An optical-fiber-attached ferrule includes: an optical fiber hole into which an optical fiber is inserted and fixed with a first adhesive; and an adhesive-filling section including an opening surface and an opposed surface opposite the opening surface. The adhesive-filling section is filled with a second adhesive that is softer than the first adhesive with an end surface of the optical fiber positioned closer to the opposed surface than to the opening surface.
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公开(公告)号：US10962725B2
公开(公告)日：2021-03-30
申请号：US16763826
申请日：2018-08-06
Applicant: Fujikura Ltd.
Inventor： Akihiro Nakama , Hirotaka Asada
IPC: G02B6/38
Abstract: A ferrule structure includes: a holding aperture that holds light guide members forming light guides; a recess that is recessed from a connection end surface with respect to a mating ferrule; a first lens array on a base surface that is a bottom surface of the recess; and a first groove that is recessed from the base surface and is on an outer side of the first lens array. The first lens array includes lenses that are aligned with the light guides.
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公开(公告)号：US20200371298A1
公开(公告)日：2020-11-26
申请号：US16763716
申请日：2018-08-06
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Hirotaka Asada
Abstract: A ferrule structure includes: a ferrule body including a body-side guide hole for insertion of a guide pin, and a holding hole that holds light guide members forming light guides; a lens plate including a plate-side guide hole for insertion of the guide pin, and a lens array that includes lenses aligned to the light guides; and a recessed part in an end part of at least one of the body-side guide hole and the plate-side guide hole on an adhesion surface side.
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公开(公告)号：US20200341207A1
公开(公告)日：2020-10-29
申请号：US16763826
申请日：2018-08-06
Applicant: Fujikura Ltd.
Inventor： Akihiro Nakama , Hirotaka Asada
IPC: G02B6/38
Abstract: A ferrule structure includes: a holding aperture that holds light guide members forming light guides; a recess that is recessed from a connection end surface with respect to a mating ferrule; a first lens array on a base surface that is a bottom surface of the recess; and a first groove that is recessed from the base surface and is on an outer side of the first lens array. The first lens array includes lenses that are aligned with the light guides.
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25.发明授权公开(公告)号：US10705299B2
公开(公告)日：2020-07-07
申请号：US16348821
申请日：2017-11-29
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi , Hirotaka Asada
Abstract: A ferrule structure includes: a ferrule body including a guide hole that accepts insertion of a guide pin, and a fiber hole that accepts insertion of an optical fiber and that is disposed in an opening surface of the ferrule body; and a lens plate including a guide hole that accepts insertion of the guide pin, a lens part, and an abutment surface that abuts an endface of the optical fiber. A recess is disposed in at least one of the ferrule body and the lens plate. A matching material filling gap, that is to be filled with a refractive index matching material, is formed with the recess, between the opening surface of the ferrule body and the abutment surface of the lens plate.
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Patent Agency Ranking
公开(公告)号：US10605997B2
公开(公告)日：2020-03-31
申请号：US15553526
申请日：2016-02-12
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Tatsuya Ota
Abstract: An optical-fiber-attached ferrule of the invention includes: an optical fiber; and a ferrule that holds an end portion of the optical fiber, where the ferrule includes a ferrule end surface, a fiber hole to insert the optical fiber, an adhesive-filling section that includes an opening surface of the optical fiber hole and an opposed surface opposed to the opening surface, and a light transmitting part that transmits an optical signal between the ferrule end surface and the opposed surface, and an end surface of the optical fiber is disposed close to the opposed surface in the adhesive-filling section The adhesive-filling section is filled with an optical adhesive with Shore hardness D of equal to or less than 50.
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公开(公告)号：US20180120512A1
公开(公告)日：2018-05-03
申请号：US15569660
申请日：2016-12-05
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi
CPC classification number: G02B6/382 , G02B6/36 , G02B6/3821 , G02B6/3853 , G02B6/3861 , G02B6/3867 , G02B6/3869 , G02B6/3885 , G02B6/4212 , G02B6/4214
Abstract: An optical-fiber-attached ferrule includes: an optical fiber hole into which an optical fiber is inserted; and a filling section filled with a liquid refractive index-matching material. The filling section internally includes an opening surface of the optical fiber hole and an opposed surface that is opposed to the opening surface, and the filling section is filled with the liquid refractive index-matching material while an end surface of the optical fiber inserted into the optical fiber hole abuts with the opposed surface
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公开(公告)号：US09927583B2
公开(公告)日：2018-03-27
申请号：US14668575
申请日：2015-03-25
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Shigeo Takahashi , Kazuhiro Takizawa
CPC classification number: G02B6/3846 , G02B6/2558 , G02B6/3847 , G02B6/3853 , G02B6/387 , G02B6/3885 , G02B6/3887
Abstract: An optical connector comprises a housing, a regulating portion which is protrudes toward an inner surface of the housing, a ferrule which is secured to an optical fiber and which is accommodated inside the housing so as to be movable. The ferrule includes a base portion and a thinned portion that has a thickness smaller than that of the base portion. If the ferrule moves forward in the butt-connection direction, the regulating portion and the base portion approach each other, so that the regulating portion regulates the movement of the ferrule in the thickness direction. If the ferrule moves backward in the butt-connection direction, the ferrule reaches a position where the thinned portion faces the regulating portion, so that the movement of the ferrule in the thickness direction is not regulated by the regulating portion.
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公开(公告)号：US20180017738A1
公开(公告)日：2018-01-18
申请号：US15553526
申请日：2016-02-12
Applicant: FUJIKURA LTD.
Inventor： Akihiro Nakama , Tatsuya Ota
IPC: G02B6/38
CPC classification number: G02B6/3861 , G02B6/32 , G02B6/382 , G02B6/3821 , G02B6/3853 , G02B6/3885
Abstract: An optical-fiber-attached ferrule of the invention includes: an optical fiber; and a ferrule that holds an end portion of the optical fiber, where the ferrule includes a ferrule end surface, a fiber hole to insert the optical fiber, an adhesive-filling section that includes an opening surface of the optical fiber hole and an opposed surface opposed to the opening surface, and a light transmitting part that transmits an optical signal between the ferrule end surface and the opposed surface, and an end surface of the optical fiber is disposed close to the opposed surface in the adhesive-filling section The adhesive-filling section is filled with an optical adhesive with Shore hardness D of equal to or less than 50.
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公开(公告)号：US20150198772A1
公开(公告)日：2015-07-16
申请号：US14669709
申请日：2015-03-26
Applicant: FUJIKURA, LTD.
Inventor： Akihiro Nakama , Tatsuya Ohta , Kunihiko Fujiwara , Takanobu Mikami
IPC: G02B6/38
CPC classification number: G02B6/3861 , G02B6/3853 , G02B6/3885 , G02B6/4214
Abstract: An optical ferrule and an optical connector are provided, which make it possible to reduce the labor required for an adhesive wiping operation even when the optical ferrule is small-sized. A first adhesive filling recess 113 is equipped, which is formed at an outlet of an optical fiber hole 112 so that a forward end of a bare fiber 120, which is positioned by the optical fiber hole 112, is allowed to abut against an inner wall 113w opposed to the outlet, and the bare fiber 120 is adhered and fixed in a resultant state by means of an adhesive 131 with which the recess is filled, wherein the first adhesive filling recess 113 is provided with adhesive accommodating recesses 115, 117 which are shallower than the first adhesive filling recess 113 and are disposed continuously with the first adhesive filling recess 113.
Abstract translation: 提供了一种光学套圈和光学连接器，即使当光学套圈小型化时，也可以减少粘合剂擦拭操作所需的劳动。 设置有第一粘合填充凹部113，其形成在光纤孔112的出口处，使得通过光纤孔112定位的裸光纤120的前端被允许抵靠内壁 113w与出口相对，并且裸线120通过其中填充有凹部的粘合剂131粘合并固定在其中，其中第一粘合剂填充凹部113设置有粘合剂容纳凹部115,117，它们是 比第一粘合剂填充凹部113浅，并且与第一粘合剂填充凹部113连续地设置。
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