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111. 发明专利

JPH0339907A OPTICAL CONNECTOR 失效
公开(公告)号：JPH0339907A
公开(公告)日：1991-02-20
申请号：JP9986790
申请日：1990-04-16
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： SAITO KAZUTO , KAKII TOSHIAKI , ISHIDA HIDETOSHI , SUZUKI SHUZO , MURATA HISASHI , NAGASAWA SHINJI
IPC分类号： G02B6/24
摘要： PURPOSE:To attain the low-loss connection of optical fibers and the extremely stable reproducibility of attachment and detachment by providing guide pin holes for insertion of guide pins to inscribe guide pin grooves of a positioning member onto these guide pin grooves and constituting the circumference of the guide pin holes of a material having the Young's modulus smaller than the Young's modulus of the optical fiber positioning member. CONSTITUTION:The guide pin grooves 13 of the positioning member 1 are formed thereon with the guide pin holes 2 in the form of inscribing these grooves and the circumference of the guide pin holes 2 is constituted of the material having the Young's modulus lower than the Young's modulus of the positioning member 1, for example, such a molding resin as thermosetting epoxy resin. The guide pin holes 2 are deformed from A to B while the state of inscribing the guide pin V-grooves 13 of the positioning members 1 even if the diameter of the guide pins are slightly larger than the guide pin holes 2 in this case. The pitch of the guide pins to be inserted remains stable at all times in this way and the direction of the eccentricity by the deformation of the guide pin holes 2 is always kept in the specified direction and, therefore, the stable connection with the less fluctuation in the attachment and detachment is executed.

112. 发明专利

JPH02273708A OPTICAL CONNECTOR 失效
公开(公告)号：JPH02273708A
公开(公告)日：1990-11-08
申请号：JP9594589
申请日：1989-04-14
申请人： SUMITOMO ELECTRIC INDUSTRIES , NEC CORP
发明人： SAITO KAZUTO , ISHIDA HIDETOSHI , KAKII TOSHIAKI , HIBINO MINORU , SAWANO ISAMU , KURISAKA MASARU
IPC分类号： G02B6/38
摘要： PURPOSE:To provide the optical connector which can be coupled to an external connector via an adapter on a back board by constituting an insertion guide in such a manner that the guide can be floated from a housing by a pressurizing spring. CONSTITUTION:A snap 18 for facilitating the coupling to a substrate is provided in the lower part of the housing 13 for gripping the insertion guide 12. The ferrule pressurizing spring 14 which is positioned between the rear end part 11a of the ferrule 11 and a pressing ring 17 mounted behind the same and presses the ferrule 11 in the axial direction is provided. The insertion guide pressurizing spring 15 which is mounted between the rear surface of a stopper 16 provided in the guide 12 and the housing 13 and pressurizes the guide 12 toward the housing 13 is provided. The housing is easily mounted to the substrate in this way and since the insertion guide floats from the housing, the coupling is possible even if the axis is misaligned vertically and laterally from the adapter on the back board.

113. 发明专利

JP2002333528A METHOD FOR POLISHING END FACE OF OPTICAL CONNECTOR AND OPTICAL CONNECTOR PER SE 失效
公开(公告)号：JP2002333528A
公开(公告)日：2002-11-22
申请号：JP2001137116
申请日：2001-05-08
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OKADA TAKUYO , ISHIDA HIDETOSHI , NISHIDA TERUAKI
IPC分类号： G02B6/40 , B24B19/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide a method for grinding an end face of an optical connector, a method for securing the optical fiber projecting shape which is needed for realizing physical contact(PC) of an optical fiber in the end face of an optical connector ferrule, and also to provide an optical connector per se. SOLUTION: In the method for polishing the end face of an optical connector ferrule 11 and that of an optical fiber, a grinding device 22 is rotated for nearly the same length of time in the forward and backward directions for grinding.

114. 发明专利

JP2002267902A TERMINAL STRUCTURE OF OPTICAL CABLE WITH CONNECTOR 失效
公开(公告)号：JP2002267902A
公开(公告)日：2002-09-18
申请号：JP2001063345
申请日：2001-03-07
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIDA HIDETOSHI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To insert the ribbons of optical fibers led out of an optical cable into one protection tube and to prevent the optical fibers in the ribbons from having worse transmission characteristics. SOLUTION: The ribbons 3 of optical fibers put in one optical cable 1 are led out of end part of the optical cable 1 and put in one group or divided into groups of ribbons 3, and then connected to one multi-unit optical connector 5, group by group, to constitute the terminal structure of the optical cable with the connector. The ribbons 3 of optical fibers in the respective groups which are led out of the end part of the optical cable 1 are inserted into one or seires-arranged protection tubes 4 and have single-unit separation places where single-unit optical fibers 2 are separated not in the tape state at at least >=1 places other than the end part in the protection tube 4.

115. 发明专利

JP2002131582A OPTICAL CONNECTOR 失效
公开(公告)号：JP2002131582A
公开(公告)日：2002-05-09
申请号：JP2000320942
申请日：2000-10-20
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OKADA TAKUYO , UEDA TOMOHIKO , ISHIDA HIDETOSHI , YAMAUCHI TAKAYASU
IPC分类号： G02B6/40 , G02B6/38
摘要： PROBLEM TO BE SOLVED: To provide an optical connector in which ferrules come into contact with each other on the face without inclining and in which optical fibers are fully in contact with each other so that connection loss is reduced. SOLUTION: The optical connector 6 is constituted such that it has a ferrule 1, a spacer 2 and a spring 4 and that the spring 4 pressurizes the ferrule 1 via the spacer 2. The area having the maximum cross section, when the spacer 2 is cut with a plane vertical to the optical fiber 10, is the area other than the part where the spacer 2 is in contact with the ferrule 1; therefore, this contact area of the spacer 2 with the ferrule 1 is narrowed toward the center of the cross section, compared with the area with the maximum cross section. By so designing the spacer 2, the ferrule 1 at its rear end is cleared into space around the spacer 2 and, at its tip, is brought into contact with the opposite ferrule on the face. Thus, the optical fibers 10, which are fixedly positioned at the tip face, are fully in physical contact with each other.

116. 发明专利

JP2000221357A OPTICAL FIBER CONNECTOR 失效
公开(公告)号：JP2000221357A
公开(公告)日：2000-08-11
申请号：JP18598499
申请日：1999-06-30
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： YUI MASARU , SUNAGA KEI , IKECHI TERUO , ISHIDA HIDETOSHI , SHIOZAKI MANABU , SASAKI TAKASHI , KOBAYASHI KOHEI
IPC分类号： G02B6/24 , G02B6/30 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber connector which can reduce the local stress that a bare fiber receives from the rear-end part edge of an optical fiber arrangement part. SOLUTION: On an array groove substrate 1 composed of the optical fiber arrangement part 1a where optical fiber array grooves are formed and an optical fiber coating arrangement and fixation part 1b, two ribbons 2 of exposed bare fibers 2b having coatings 2a removed at their tip sides are stacked, and the optical fibers of both the ribbons are arranged by turns and pressed by a pressure member 3. The step (t) between the optical fiber arrangement part and optical fiber coating arrangement and fixation part is made small and the lower bare fibers are raised at the rear part of the optical fiber arrangement part.

117. 发明专利

JP2000098175A OPTICAL FIBER ARRAY 失效
公开(公告)号：JP2000098175A
公开(公告)日：2000-04-07
申请号：JP28866498
申请日：1998-09-28
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SUNAGA KEI , ISHIDA HIDETOSHI , KAKII TOSHIAKI
IPC分类号： G02B6/255 , G02B6/30 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To connect a waveguide element and an optical fiber array with higher coupling efficiency by making the spacings between V-grooves to be worked on a substrate member partially or wholly wider than the spacing between the waveguide cores of the waveguide type element to be connected to the optical fiber array. SOLUTION: The spacings between the V-grooves are made partially or wholly wider than the spacing between the waveguide cores 12 in such a manner that the distance L between the V-grooves 10 at both ends to be worked on the substrate of the V-grooves 10 satisfies equation 103×β

118. 发明专利

JP2000066057A OPTICAL FIBER ARRAY 失效
公开(公告)号：JP2000066057A
公开(公告)日：2000-03-03
申请号：JP23809098
申请日：1998-08-25
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SUNAGA KEI , ISHIDA HIDETOSHI , SEKI KIMIKO
IPC分类号： G02B6/24 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To manufacture an optical fiber array reduced in optical fiber array pitch by a simple method. SOLUTION: This optical fiber array is constituted by making the V-groove side front end face of a substrate 1 having an optical fiber stage 1a and coated optical fiber ribbon stage 1b arrayed with a plurality of the V-grooves 1c and the front end faces of the optical fibers 4a, 4b exposed by removing coatings at the terminals of two sheets of coated optical fiber ribbons 3a, 3b flush with each other, alternately inserting the front ends of the optical fibers of two sheets of the coated optical fiber ribbon into the V-grooves and pressing and fixing the surfaces of the optical fibers with a cap member 2. In such a case, the portions having the coatings of two sheets of the coated optical fiber ribbon are superposed on each other in the state of offsetting in the transverse direction of the ribbons on at least the coated optical fiber ribbon stage 1b of the substrate and near the same. A spacer 5 for preventing the flow of the adhesives is inserted between the coated optical fiber ribbons 3a and 3b of part in the longitudinal direction of two sheets of the coated optical fiber ribbons superposed on each other. The optical fibers and the coated optical fiber ribbon are fixed and protected by adhesives 6 from the edges of the cap member 2 to the portions of the coatings of the coated optical fiber ribbons.

119. 发明专利

JPH11230865A METHOD AND DEVICE FOR MEASURING OPTICAL CHARACTERISTIC OF OPTICAL FIBER ARRAY WITH OPTICAL CONNECTOR 失效
公开(公告)号：JPH11230865A
公开(公告)日：1999-08-27
申请号：JP3126998
申请日：1998-02-13
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIDA HIDETOSHI , OGAWA SHINJI , OZAWA KAZUMASA
IPC分类号： G01M11/02
摘要： PROBLEM TO BE SOLVED: To provide a device and method capable of easily and accurately measuring connection losses of the connector part and array part of an optical fiber array with an optical connector. SOLUTION: An optical connector part at one end of an optical member to be measured 4 is fitted to a reference multi-conductor connector 3 formed at one end of a multi-conductor optical fiber 2, and an optical fiber array part at the other end is arranged at a location opposed to a reference optical fiber array 5 formed at one end of a multi-conductor optical fiber 7 to form a plurality of light transmission paths allocating one light transmission path for each conductor. The reference optical fiber array 5 moves along a predetermined circle by controlling the impressed voltage of an electrostrictive element 6 incorporating the reference optical fiber array 5 by a circular motion controller 9. Light is inputted to a plurality of light transmission paths from a light source 1, and changes in the intensity of transmitted light are detected by a power meter 8 to obtain connection losses of an optical fiber array joint and a connector part from the phase difference between the circular motion and the changes in the intensity of transmitted light, etc., by a CPU 10.

120. 发明专利

JPH1164677A CONNECTOR HEAD WITH BUILT-IN ARRAY 失效
公开(公告)号：JPH1164677A
公开(公告)日：1999-03-05
申请号：JP21754897
申请日：1997-08-12
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OGAWA SHINJI , ISHIDA HIDETOSHI , KAKII TOSHIAKI
IPC分类号： G02B6/24 , G02B6/36 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To reduce a manufacturing cost by forming a ferrule member in which the optical connector side of a fiber array and optical fibers are integrated and at the same time forming guide pin holes for performing the aligning of optical axes at the time of connecting the ferrule member to an optical connector to reduce manufacturing processes. SOLUTION: A ferrule member 7 in which the other end side (optical connector B side) of a fiber array 3 and optical fibers 2 are integrated is formed by covering one end side (optical element A side) of the fiber array 3 with a protective sleeve 4 and by performing an insert molding making the fiber array 3 an insertion component. Moreover, at the same time, guide pin holes 7A for performing the aligning of optical axes at the time of connecting the ferrule member 7 to the optical connector B are formed by the insert molding. Thus, since the ferrule member 7 is formed and, at the same time, the optical fibers 2 are positioned with respect to the ferrule member 7 to be fixed and the guide pin holes are also formed simultaneously, manufacturing processes can be reduced.

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