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1. 发明专利

ID18965A 未知
公开(公告)号：ID18965A
公开(公告)日：1998-05-28
申请号：ID973715
申请日：1997-11-20
申请人： SUMITOMO ELECTRIC IND LTD CS , NIPPON TELEGRAPH & TELEPHONE
发明人： SAITO KAZUHITO , KOMIYA TAKEO , TAMURA MITSUAKI , OZAWA KAZUMASA , TOMITA KENICHI , NAKAO NAOKI , KUROIWA MASATO
IPC分类号： G02B6/35 , G02B6/38 , G02B26/08 , G02B6/36
摘要： An optical switch (1) of the present invention comprises an optical fiber arraying member (21) for keeping a plurality of first optical fibers (20) juxtaposed with tip portions thereof being aligned, a movable arm (31), opposed to the optical fiber arraying member, for holding a tip portion of at least one second optical fiber (30), a driving mechanism (40) for driving this movable arm (31) to selectively optically coupling the second optical fiber (30) with an arbitrary first optical fiber (20), a supplying mechanism (60) for, when a first optical fiber (20) is optically coupled with the second optical fiber, dropping and charging an index matching agent to a gap between these optical fibers (20,30), and drop controllers (67,68) for controlling the supplying mechanism (60), wherein the index matching agent is dropped and charged into only the gap between the optical fibers, so that foreign matter produced in the driving mechanism (40) or the like is prevented from intruding into the coupling part between the optical fibers (20,30), thus assuring stable optical characteristics.

2. 发明专利

DE69938683D1 未知
公开(公告)号：DE69938683D1
公开(公告)日：2008-06-19
申请号：DE69938683
申请日：1999-07-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： URUNO SHIGENORI , TACHIKURA MASAO , IZUMITA HISASHI , MINE KOJI , ENOMOTO YOSHITAKA , NAKAO NAOKI , TOMITA NOBUO , HIROOKA AKIRA , TAKEMOTO HAJIME
IPC分类号： G02B6/46 , H04Q1/14 , G02B6/44
摘要： An optical fiber distribution board (501) comprising: a central-side terminating section (510) for terminating first optical cable (511) optically connected to communication equipment (513) in a central office; a user-side terminating section (507) for terminating second optical cable (512) optically connected to subscriber terminal equipment; a cross connecting section (502) for switching connections of any optical fiber of said first optical cable (511) with any optical fiber of said second optical cable (512); a fiber sorting section (503) for accommodating said first optical cable (511) and separating optical fibers to be routed to said cross connecting section (502) from optical fibers to be routed to a fiber storage section (504); and a fiber-cord storage section (506) for providing connecting means for optically connecting any optical fiber from said fiber sorting section (503) to any terminal of said cross connecting section (502).

3. 发明专利

DE69724078D1 未知
公开(公告)号：DE69724078D1
公开(公告)日：2003-09-18
申请号：DE69724078
申请日：1997-10-24
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： SAITO KAZUHITO , KOMIYA TAKEO , TAMURA MITSUAKI , OZAWA KAZUMASA , TOMITA KENICHI , NAKAO NAOKI , KUROIWA MASATO
IPC分类号： G02B6/35 , G02B6/38 , G02B26/02
摘要： An optical switch (1) of the present invention comprises an optical fiber arraying member (21) for keeping a plurality of first optical fibers (20) juxtaposed with tip portions thereof being aligned, a movable arm (31), opposed to the optical fiber arraying member, for holding a tip portion of at least one second optical fiber (30), a driving mechanism (40) for driving this movable arm (31) to selectively optically coupling the second optical fiber (30) with an arbitrary first optical fiber (20), a supplying mechanism (60) for, when a first optical fiber (20) is optically coupled with the second optical fiber, dropping and charging an index matching agent to a gap between these optical fibers (20,30), and drop controllers (67,68) for controlling the supplying mechanism (60), wherein the index matching agent is dropped and charged into only the gap between the optical fibers, so that foreign matter produced in the driving mechanism (40) or the like is prevented from intruding into the coupling part between the optical fibers (20,30), thus assuring stable optical characteristics.

4. 发明专利

GB2312296A8 Optical switch 未知
公开(公告)号：GB2312296A8
公开(公告)日：1998-01-19
申请号：GB9712233
申请日：1996-11-07
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OMIZU SEIJI , EBIHARA TAKASHI , NAKAO NAOKI , KUROIWA MASATO
IPC分类号： G02B6/35 , G02B6/36 , G02B6/38
摘要： The invention relates to an optical switch which is used for connecting or switching light (optical signals) by utilizing optical fibers. An optical fiber tape (6) is fixed on an optical fiber placing base (2) by an adhesive agent. A plurality of slave side optical fibers (3) are caused to protrude from the optical fiber tape (6). plurality of V grooves (5) are formed at the front edge side of the slave side optical fibers (3), a groove formed member 1 which has the master optical fiber (4) fixed in the V grooves thereof is provided. The master optical fiber (4) is caused to move in the X and Y directions in the drawing, integral with the groove-formed member (1) by a master movement mechanism 25, whereby the connection end face side of the slave side optical fibers (3) is selectively inserted in the V groove (5a), and the master optical fiber (4) and slave side optical fibers (3) are optically connected to each other in a switchable state by the master optical fiber (4) being opposite the connection end face of the slave side optical fibers (3) in the V groove (5a). When they are optically connected to each other, the connection end face sides of the master optical fiber (4) and the slave side optical fibers 3 are pressed to, pinched in and retained in the V groove (5a) by a pressing member.

5. 发明专利

DE69724078T2 未知
公开(公告)号：DE69724078T2
公开(公告)日：2004-06-03
申请号：DE69724078
申请日：1997-10-24
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： SAITO KAZUHITO , KOMIYA TAKEO , TAMURA MITSUAKI , OZAWA KAZUMASA , TOMITA KENICHI , NAKAO NAOKI , KUROIWA MASATO
IPC分类号： G02B6/35 , G02B6/38 , G02B26/02
摘要： An optical switch (1) of the present invention comprises an optical fiber arraying member (21) for keeping a plurality of first optical fibers (20) juxtaposed with tip portions thereof being aligned, a movable arm (31), opposed to the optical fiber arraying member, for holding a tip portion of at least one second optical fiber (30), a driving mechanism (40) for driving this movable arm (31) to selectively optically coupling the second optical fiber (30) with an arbitrary first optical fiber (20), a supplying mechanism (60) for, when a first optical fiber (20) is optically coupled with the second optical fiber, dropping and charging an index matching agent to a gap between these optical fibers (20,30), and drop controllers (67,68) for controlling the supplying mechanism (60), wherein the index matching agent is dropped and charged into only the gap between the optical fibers, so that foreign matter produced in the driving mechanism (40) or the like is prevented from intruding into the coupling part between the optical fibers (20,30), thus assuring stable optical characteristics.

6. 发明专利

CA2278259A1 OPTICAL FIBER DISTRIBUTION MODULE, OPTICAL FIBER CORD AND FIBER DISTRIBUTION SYSTEM 未知
公开(公告)号：CA2278259A1
公开(公告)日：2000-01-24
申请号：CA2278259
申请日：1999-07-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： URUNO SHIGENORI , TAKEMOTO HAJIME , ENOMOTO YOSHITAKA , HIROOKA AKIRA , NAKAO NAOKI , TACHIKURA MASAO , TOMITA NOBUO , MINE KOJI , IZUMITA HISASHI
IPC分类号： G02B6/46 , G02B6/44 , H04Q1/14 , G02B6/36
摘要： An optical fiber distribution module achieves high density of connections on one board, yet prevents fiber cord tangling created by repeated connection/disconnection of cords. The module has a connection board with an array of optical connector adaptors for connecting in-use optical fiber cords, and a storage section for storing not-in use optical fiber cords, where a plurality of cord sorting boards having a plurality of fiber cord passageways for accommodating and retaining at least one optical fiber cord is arranged between the connection board and the storage section. This design of the board enables to organize groups of cords into in-use cords and not-in-use cords. The load on the cords are supported properly so that fiber tangling and fiber distortion are prevented. Therefore, high density optical fiber can be achieved without introducing signal distortions.

7. 发明专利

GB2312296B Optical fiber switch 未知
公开(公告)号：GB2312296B
公开(公告)日：1999-12-29
申请号：GB9712233
申请日：1996-11-07
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OMIZU SEIJI , EBIHARA TAKASHI , NAKAO NAOKI , KUROIWA MASATO
IPC分类号： G02B6/35 , G02B6/36 , G02B6/38
摘要： The invention relates to an optical switch which is used for connecting or switching light (optical signals) by utilizing optical fibers. An optical fiber tape (6) is fixed on an optical fiber placing base (2) by an adhesive agent. A plurality of slave side optical fibers (3) are caused to protrude from the optical fiber tape (6). plurality of V grooves (5) are formed at the front edge side of the slave side optical fibers (3), a groove formed member 1 which has the master optical fiber (4) fixed in the V grooves thereof is provided. The master optical fiber (4) is caused to move in the X and Y directions in the drawing, integral with the groove-formed member (1) by a master movement mechanism 25, whereby the connection end face side of the slave side optical fibers (3) is selectively inserted in the V groove (5a), and the master optical fiber (4) and slave side optical fibers (3) are optically connected to each other in a switchable state by the master optical fiber (4) being opposite the connection end face of the slave side optical fibers (3) in the V groove (5a). When they are optically connected to each other, the connection end face sides of the master optical fiber (4) and the slave side optical fibers 3 are pressed to, pinched in and retained in the V groove (5a) by a pressing member.

8. 发明专利

DE69935474T2 未知
公开(公告)号：DE69935474T2
公开(公告)日：2008-01-10
申请号：DE69935474
申请日：1999-07-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： URUNO SHIGENORI , TACHIKURA MASAO , IZUMITA HISASHI , MINE KOJI , ENOMOTO YOSHITAKA , NAKAO NAOKI , TOMITA NOBUO , HIROOKA AKIRA , TAKEMOTO HAJIME
IPC分类号： G02B6/46 , H04Q1/14 , G02B6/44
摘要： An optical fiber distribution board (501) comprising: a central-side terminating section (510) for terminating first optical cable (511) optically connected to communication equipment (513) in a central office; a user-side terminating section (507) for terminating second optical cable (512) optically connected to subscriber terminal equipment; a cross connecting section (502) for switching connections of any optical fiber of said first optical cable (511) with any optical fiber of said second optical cable (512); a fiber sorting section (503) for accommodating said first optical cable (511) and separating optical fibers to be routed to said cross connecting section (502) from optical fibers to be routed to a fiber storage section (504); and a fiber-cord storage section (506) for providing connecting means for optically connecting any optical fiber from said fiber sorting section (503) to any terminal of said cross connecting section (502).

9. 发明专利

CA2278259C OPTICAL FIBER DISTRIBUTION MODULE, OPTICAL FIBER CORD AND FIBER DISTRIBUTION SYSTEM 未知
公开(公告)号：CA2278259C
公开(公告)日：2003-10-07
申请号：CA2278259
申请日：1999-07-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAO NAOKI , ENOMOTO YOSHITAKA , URUNO SHIGENORI , MINE KOJI , IZUMITA HISASHI , TACHIKURA MASAO , HIROOKA AKIRA , TAKEMOTO HAJIME , TOMITA NOBUO
IPC分类号： G02B6/46 , G02B6/44 , H04Q1/14 , G02B6/36
摘要： An optical fiber distribution module achieves high density of connections on one board, yet prevents fiber cord tangling created by repeated connection/disconnection of cords. The module has a connection board with an array of optical connector adaptors for connecting in-use optical fiber cords, and a storage section for storing not-in use optical fiber cords, where a plurality of cord sorting boards having a plurality of fiber cord passageways for accommodating and retaining at least one optical fiber cord is arranged between the connection board and the storage section. This design of the board enables to organize groups of cords into in-use cords and not-in-use cords. The load on the cords are supported properly so that fiber tangling and fiber distortion are prevented. Therefore, high density optical fiber can be achieved without introducing signal distortions.

10. 发明专利

SG54594A1 Optical switch and switching method 未知
公开(公告)号：SG54594A1
公开(公告)日：1998-11-16
申请号：SG1997004051
申请日：1997-11-13
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： SAITO KAZUHITO , KOMIYA TAKEO , TAMURA MITSUAKI , OZAWA KAZUMASA , TOMITA KENICHI , NAKAO NAOKI , KUROIWA MASATO
IPC分类号： G02B6/35 , G02B6/38 , G02B26/02
摘要： An optical switch (1) of the present invention comprises an optical fiber arraying member (21) for keeping a plurality of first optical fibers (20) juxtaposed with tip portions thereof being aligned, a movable arm (31), opposed to the optical fiber arraying member, for holding a tip portion of at least one second optical fiber (30), a driving mechanism (40) for driving this movable arm (31) to selectively optically coupling the second optical fiber (30) with an arbitrary first optical fiber (20), a supplying mechanism (60) for, when a first optical fiber (20) is optically coupled with the second optical fiber, dropping and charging an index matching agent to a gap between these optical fibers (20,30), and drop controllers (67,68) for controlling the supplying mechanism (60), wherein the index matching agent is dropped and charged into only the gap between the optical fibers, so that foreign matter produced in the driving mechanism (40) or the like is prevented from intruding into the coupling part between the optical fibers (20,30), thus assuring stable optical characteristics.

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