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公开(公告)号：US20220382007A1
公开(公告)日：2022-12-01
申请号：US17826727
申请日：2022-05-27
IPC分类号： G02B6/44
摘要： An optical fiber ribbon includes a plurality of optical fiber cores arranged in parallel in a direction orthogonal to a longitudinal direction of the optical fiber cores, and a coupling member configured to couple the plurality of optical fiber cores. In the optical fiber ribbon, a plurality of coupled sections and a plurality of separate sections are alternately provided in the longitudinal direction. Each of the plurality of coupled sections is in a state in which all of the adjacent optical fiber cores are coupled by the coupling member. Each of the plurality of separate sections is in a state in which at least two of the optical fiber cores adjacent to each other are not coupled by the coupling member.
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22.发明申请公开(公告)号：US20220350103A1
公开(公告)日：2022-11-03
申请号：US17621108
申请日：2021-04-16
发明人： Junji FUKUI , Yoshikyo TAMEKUNI , Takahiro INABA , Yoshihiro TAKEYAMA , Daizo NISHIOKA , Hisahiko NARUKAWA , Yuji MATSUMOTO , Shinsuke SATO , Tuan Nghia DUONG
摘要： A package for an optical fiber includes: a base portion; a plurality of protruding portions that protrude from a flat surface of the base portion, are arranged along an outer periphery of the base portion, and are configured so that an optical fiber including a connector mounted to at least one end thereof is wound along a part of an outer periphery of each of the protruding portions; a mounting portion to which the connector of the optical fiber is to be mounted; and a plurality of fall-off preventing portions that are formed integrally with the base portion and capable of restricting a position of the optical fiber to be wound over the plurality of protruding portions.
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23.发明申请公开(公告)号：US20220236141A1
公开(公告)日：2022-07-28
申请号：US17612745
申请日：2020-06-03
发明人： Gouichi FUKUMOTO , Yoshifumi HISHIKAWA , Tetsufumi TSUZAKI , Toshiyuki MIYAMOTO , Kenichiro OTSUKA
IPC分类号： G01M11/00 , H04B10/077
摘要： An inspecting device has an optical switch selectively coupling a light source unit with each of light input/output ports; a first light detecting unit detecting a first intensity of test light input from an inspecting device on a counterpart side and passing through the optical switch; a second light detecting unit detecting a second intensity of the test light directed from the light source unit toward the optical switch; a third light detecting unit optically coupled to another end of a test optical fiber having one end connected to each of the plurality of light input/output ports, and detecting a third intensity of the test light received from the light source unit via the test optical fiber; and an internal loss recording unit recording a loss of an optical path inside the device obtained on a basis of a difference between the third intensity and the second intensity.
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公开(公告)号：US20210255400A1
公开(公告)日：2021-08-19
申请号：US17150523
申请日：2021-01-15
IPC分类号： G02B6/38
摘要： An optical connector including a housing body having a ferrule, an outer housing, a latch, and a tab is disclosed. The latch extends from a proximal end toward a front end of the optical connector and includes an engaging part at a distal end. The tab is placed on an outer side of the latch, movable with respect to the outer housing, and pushes down the engaging part toward the housing body according to movement of the tab. The distal end of the latch floats to space apart from the housing body. A first protrusion is disposed on an inner side of the tab. The optical connector is configured to contact an inner side of the latch with the first protrusion to push down the engaging part toward the housing body with the first protrusion as a fulcrum when the engaging part is engaged with the external device.
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公开(公告)号：US20210215889A1
公开(公告)日：2021-07-15
申请号：US17054430
申请日：2019-05-21
申请人： JAPAN COMMUNICATION ACCESSORIES MANUFACTURING CO., LTD. , SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. , SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Yusuke TAKAI , Tsutomu KAMADA , Motoyoshi KIMURA , Fumiya UEHARA , Masaki OMURA
IPC分类号： G02B6/38
摘要： An elastic member according to an embodiment is an elastic member that biases a ferrule retaining a plurality of optical fibers in a connecting direction. The elastic member is stored in an inner housing that accommodates the ferrule, the elastic member has a space in its inside into which a 16-fiber tape fiber is inserted, and the elastic member is in a noncircular shape in a cross section intersecting with the connecting direction. The elastic member includes a pair of first portions having an outer surface opposite to a pair of inner surfaces in an arc shape of the housing, the inner surfaces being opposite to each other along a first direction intersecting with the connecting direction and a pair of second portions opposite to the tape fiber along a second direction intersecting with both of the connecting direction and the first direction.
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公开(公告)号：US20210173152A1
公开(公告)日：2021-06-10
申请号：US17111566
申请日：2020-12-04
IPC分类号： G02B6/38
摘要： A cap for an optical connector adaptor, including: a base portion including a first surface and a second surface provided on an opposite side of the first surface; a grip portion formed by protruding from the first surface of the base portion; a fitting portion configured to protrude from the second surface of the base portion and to be fitted to an optical connector adapter; and a cover portion that is formed over the whole outer periphery of the base portion, in which the second surface includes a contact surface where the optical connector adapter and the cap for an optical connector adaptor contact each other, and in which the cover portion is configured to surround the contact surface from the outer periphery of the base portion.
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公开(公告)号：US12085757B2
公开(公告)日：2024-09-10
申请号：US17608026
申请日：2020-06-05
发明人： Hiroki Akiyama , Hideaki Yusa , Ryosuke Meo , Hiroshi Takayanagi
IPC分类号： G02B6/255
CPC分类号： G02B6/2553 , G02B6/2551 , G02B6/2552
摘要： A device for fusion splicing, by an arc discharge, a pair or a plurality of pairs of optical fibers arranged so that end surfaces thereof face each other. An optical fiber arrangement portion positions the pair or the plurality of pairs of optical fibers between a pair of electrodes. A control portion controls a voltage applied to the pair of electrodes. The control portion generates a first discharge between the pair of electrodes, stops the first discharge between the pair of electrodes, and then generates an arc discharge between the pair of electrodes to fusion-splice the pair or the plurality of pairs of optical fibers to each other. A discharge time of the first discharge is 200 milliseconds or less. A time from stopping the first discharge to starting the arc discharge is 100 milliseconds or less.
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公开(公告)号：US20240272374A1
公开(公告)日：2024-08-15
申请号：US18569304
申请日：2022-06-09
发明人： Yuki ARAO , Tetsu MORISHIMA , Masahiro SHIBATA
IPC分类号： G02B6/38
CPC分类号： G02B6/3874
摘要： An optical connector of one embodiment includes an optical fiber, a ferrule assembly, and a housing provided with a positioning part on an inner wall surface for suppressing a fluctuation in an aligning state of the optical fiber with respect to the housing. The positioning part includes an inclined surface and a facing surface which contact a part of the ferrule assembly. The ferrule assembly includes a ferrule, and a sleeve member. The sleeve member is constituted by a sleeve and a flange which has edges contacting the inclined surface and the facing surface respectively. Of an outer peripheral portion of the flange, a portion including the edges facing at least one of the inclined surface and the facing surface includes a set including a deformation absorbing part and two contact portions disposed on both sides of the deformation absorbing part.
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公开(公告)号：US20240248257A1
公开(公告)日：2024-07-25
申请号：US18561486
申请日：2022-06-23
发明人： Toshihiko HOMMA , Ryuichiro SATO
CPC分类号： G02B6/2555 , B08B1/165 , B08B1/30 , G02B6/2553
摘要： A fusion splicer for fusion splicing an optical fiber includes a base member having a V groove in which the optical fiber is provided, wherein a stepped portion is provided on an inclined surface of the V groove, and the stepped portion is provided at a position making contact with the optical fiber.
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公开(公告)号：US20240142702A1
公开(公告)日：2024-05-02
申请号：US18547955
申请日：2022-02-25
发明人： Shinsuke KURINO
CPC分类号： G02B6/25 , G02B6/3616
摘要： An optical fiber cutting device comprising: a main body having a positioning portion configured to position the optical fiber and a first magnet; and a moving part having a blade portion configured to put a scratch on the optical fiber and a second magnet, and attached to the main body to be movable between a first position and a second position, wherein the blade portion is capable of putting a scratch on the optical fiber while the moving part is moved from the first position to the second position, and wherein when the moving part is located at the second position, the second magnet is located at a position at which the respective same polarity sides of the second magnet and the first magnet face each other and which is closer to the first position than the first magnet.
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