专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH0996737A PRODUCTION OF OPTICAL PARTS 失效
公开(公告)号：JPH0996737A
公开(公告)日：1997-04-08
申请号：JP25409195
申请日：1995-09-29
申请人： HITACHI CABLE
发明人： TOKUNAGA TOSHIHIDE , KADOI TAKAYUKI , HIRAMOTO YOSHIYUKI , NEMOTO HIROMASA , MUTO HIDEAKI , SUZUKI MASAKI
IPC分类号： G02B6/30 , G02B6/13
摘要： PROBLEM TO BE SOLVED: To eliminate the optical axis misalignment which occurs in case of curing and shrinking and to make the production of low-loss optical parts possible by irradiating UV curing resins with UV rays through optical fibers, thereby curing these resins. SOLUTION: A V-groove block 2 for incidence and a V-groove block 3 for exit are arranged in proximity to both flanks of a glass waveguide 1. The UV resins 4, 5 as adhesive materials are poured into the spacing between this glass waveguide 1 and the V-groove block 2 for incidence and in the spacing between the glass waveguide 1 and the V-groove block 3 for exit. After the packing of the UV resins 4, 5 ends, UV lamps 9, 11 are lighted to irradiate the parts of the UV resins 4, 5 with the UV light for the prescribed time (for example, 5 minutes) to initiate the curing of the resins. The uniform irradiation of the UV resins 4, 5 with the UV rays is made possible by the irradiation with the UV light through the respective optical fibers 7-1 to 7-8 . Then, the optical axis misalignment of the V-groove block 2 for incidence and the V- groove block 3 for exit is lessened and the low-loss optical parts are obtd.

2. 发明专利

JPH0850218A WAVEGUIDE TYPE OPTICAL MODULE 失效
公开(公告)号：JPH0850218A
公开(公告)日：1996-02-20
申请号：JP18469794
申请日：1994-08-05
申请人： HITACHI CABLE
发明人： KUROSAWA YOSHINORI , TAKEYA NORIAKI , NEMOTO HIROMASA , KADOI TAKAYUKI , TAKAHASHI RYUTA
IPC分类号： G02B6/30
摘要： PURPOSE:To obviate degradation in reliability against a temp. change and humidity change by fixing planar reinforcing members onto both fiber blocks so as to cross a waveguide substrate. CONSTITUTION:Both incident and exit end faces of the waveguide substrate 20 are optically polished. Both end faces are adhered and fixed by UV curing type adhesives after a single core fiber block 21 and 16-core fiber block 22 of optical polishing agents are optically adjusted. Further, the reinforcing plates 23, 24 as reinforcing materials are adhered and fixed on both of front and rear faces by the UV curing type adhesives so as to cross the waveguide substrate 20, by which a module is formed. The coeffts. of linear expansion of the reinforcing plates 23, 24 fixed to cross the waveguide substrate 20 are confined to >=0.1 times and within 10 times of the coefft. of thermal expansion of the waveguide substrate 20. As a result, tensile and compressive stresses are applied on the module from the adhered parts even if the temp. change arises in the case of adhesion of the reinforcing plates 23, 24 by the adhesives. Increasing of the insertion loss and peeling of the adhered parts of the optical axis is obviated without bending of the module even if the stresses are not symmetrical with the cross-section of the module.

3. 发明专利

JPH03191306A PRODUCTION OF MULTI-FIBER OPTICAL CONNECTOR 失效
公开(公告)号：JPH03191306A
公开(公告)日：1991-08-21
申请号：JP33032289
申请日：1989-12-20
申请人： HITACHI CABLE , NIPPON TELEGRAPH & TELEPHONE
发明人： NAGASAWA SHINJI , TANABE YUJI , ABE KOICHI , KADOI TAKAYUKI , ABE HIDEKAZU
IPC分类号： G02B6/38 , B29C45/26
摘要： PURPOSE:To stably produce a ferrule for the multi-fiber optical connector by injecting a resin into a cavity from one direction nearly parallel with the arrangement of the core pins and guide pin hole-forming pins in the cavity or further allowing the injected resin to flow over. CONSTITUTION:Metallic molds A, B are combined above and below. The guide pin hole-forming pins 4 and the core pins 1 are arranged in parallel in the cavity 5 formed between the molds A and B. The resin is injected into the cavity 5 from the one direction nearly parallel with the arrangement of the core pins 1 and the guide pin hole-forming pins 4 in the cavity at the time of injecting the resin for molding into the cavity 5. An overflow part 7 to allow the resin to flow over at the time of injecting the resin into the cavity 5 is provided on a part or the entire periphery of the cavity part 5 to allow the injected resin to flow over. Thus, the ferrule of the outsert type connector is high accuracy and efficiently produced.

4. 发明专利

JPH01201611A MANUFACTURE OF MULTICORE OPTICAL CONNECTOR 失效
公开(公告)号：JPH01201611A
公开(公告)日：1989-08-14
申请号：JP2629288
申请日：1988-02-05
申请人： HITACHI CABLE , HITACHI LTD
发明人： TAKASHIMA HIDEYUKI , ABE KOICHI , KADOI TAKAYUKI , TANABE YUJI , SATO HIDEMI
IPC分类号： G02B6/38
摘要： PURPOSE:To obtain a multicore optical connector having high accuracy at a low cost by forming a shape of an inserting and holding part provided on a metallic die so as to insert and hold a reinforcing member, to the same shape as an external shape of the reinforcing member, and inserting and holding the reinforcing member without a cavity by the inserting and holding part. CONSTITUTION:A shape of an inserting and holding part 6' provided so as to insert and hold a reinforcing member 6 on a metallic die consisting of the upper side 7 and the lower die 8 is formed to the same shape as an external form of the reinforcing member 6, and the reinforcing member 6 is inserted and held without a gap by this inserting and holding part 6'. That is, the reinforcing member 6 is formed to a columnar shape, and in the upper die 7 and the lower die 8 of the metallic die, the inserting and holding part 6' consisting of a space of a columnar shape of the same form as the external form of the reinforcing member 6 is formed extending over length L. By this inserting and holding part 6', the reinforcing member 6 is inserted and held without a cavity, and also, each one part of fixing pins 7b, 8b is embedded in the reinforcing member 6, a respectively and prevents the reinforcing member 6 from being moved or rotated. In such a way, an installing operation of an optical fiber to a V-groove is facilitated, and also, even at the time of a resin injecting operation in case of mold forming, the optical fiber 1 is held stably.

5. 发明专利

JPH0990157A MANUFACTURE OF OPTICAL WAVEGUIDE MODULE 失效
公开(公告)号：JPH0990157A
公开(公告)日：1997-04-04
申请号：JP24319095
申请日：1995-09-21
申请人： HITACHI CABLE
发明人： KADOI TAKAYUKI , HIRAMOTO YOSHIYUKI , NEMOTO HIROMASA , MUTO HIDEAKI
IPC分类号： G02B6/30
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of optical waveguide modules, by which working time 18 short and which are not easily damaged. SOLUTION: The manufacturing method of the optical waveguide modules is to connect an incoming side optical fiber array and an outgoing side optical fiber array, on which pressing boards are covered by arranging the optical fibers on a V-groove block, with the incoming side end part and the outgoing side end part of a waveguide block where a dummy board is covered on a waveguide element. The optical fiber arrays 27 and 31 whose number is the same as the optical waveguide elements 20 are arranged at the incoming side end part of the optical waveguide element 20 having plural patterns, and optical axes are collectively adjusted. The arrays are adhered and fixed so as to assemble an assembly 32. Then, it is separated into the plural optical waveguide modules 35a-35d.

6. 发明专利

JPH0894875A WAVEGUIDE TYPE OPTICAL MODULE 失效
公开(公告)号：JPH0894875A
公开(公告)日：1996-04-12
申请号：JP22768794
申请日：1994-09-22
申请人： HITACHI CABLE
发明人： NEMOTO HIROMASA , TAKEYA NORIAKI , KADOI TAKAYUKI , KUROSAWA YOSHINORI , TAKAHASHI RYUTA
IPC分类号： G02B6/24 , G02B6/30
摘要： PURPOSE: To obtain a waveguide type optical module with which stresses imparted on optical parts are decreased and good optical characteristics are obtainable in spite of temp. fluctuations by specifying the material of an enclosing member. CONSTITUTION: A pedestal 7 is formed of the same material as the material of a waveguide element 5 in order to make its coefft. of linear expansion nearly coincident with the coefft. of linear expansion of a waveguide element 5. The material having the low coefft. of linear expansion is used for the enclosing member which is a package for packaging. Since the thermal expansion and thermal shrinkage of the enclosing member 6 according to a temp. change are kept equal to these of the other members or suppressed to a lower level than the other members, the deformation of the waveguide element and the increased loss thereof and further, the destruction thereof by the significant thermal expansion and thermal shrinkage of the enclosing member 6 are prevented. The thermal expansion and thermal shrinkage of the enclosing member 6 consisting of the material having the low coefft. of linear expansion are suppressed to the lower level with the specified width even if the width of the temp. fluctuation is increased if the enclosing member is not transformed in its material quality when the temp. is fluctuated.

7. 发明专利

JPH0792335A STRUCTURE OF HERMETIC SEALING PART OF OPTICAL FIBER 失效
公开(公告)号：JPH0792335A
公开(公告)日：1995-04-07
申请号：JP21714793
申请日：1993-09-01
申请人： HITACHI CABLE
发明人： KADOI TAKAYUKI , SAITO RYUICHI , OSUGA KAZUSHI , OGOSHI MIKIO , SATO YOSHIAKI
IPC分类号： G02B6/42 , G02B6/00 , H01L31/0232 , H01L33/48 , H01S5/00 , H01L33/00 , H01S3/18
摘要： PURPOSE:To provide a structure for hermetic sealing of an optical fiber which prevents peeling of the boundary surface between a low melting glass and an adhesive and improves the reliability of an optical module. CONSTITUTION:A small-diameter projecting part 11a of a hollow reinforcing sleeve 11 having a projecting shape in the sectional shape at its end is fitted into a cylindrical introducing part 10 integrally formed with a package 2 from its end surface 10a side and the optical 7 is inserted into this reinforcing sleeve 11 and is fixed with low melting glass 13. Adhesive 14 is packed in the reinforcing sleeve 11.

8. 发明专利

JPH06174967A OPTICAL MODULE 失效
公开(公告)号：JPH06174967A
公开(公告)日：1994-06-24
申请号：JP32797892
申请日：1992-12-08
申请人： HITACHI CABLE
发明人： KUROSAWA YOSHINORI , TERAOKA TATSUO , KADOI TAKAYUKI
IPC分类号： G02B6/30
摘要： PURPOSE:To suppress one mis-alignment or optical axes at the time of welding holders and to decrease connection loss so as to assure long-term reliability by forming grooves parallel along a laser welded part of the butt end faces of metallic holders mounted with optical parts to each other. CONSTITUTION:This optical module is formed by butting three pieces of blocks 10a to 10c mounted with the optical parts, such as optical fibers against each other and joining the joint parts thereof by laser welding. The central block 10a is constituted of a metallic holder 11a made of a metal having an approximately U shape in section and a coupler element 12 adhered and fixed to the inner side thereof and is so joined that the optical axes of the single mode optical fiber 14 and the coupler element 12 provided in the right and left blocks 10b, 10c align to each other. The parallel grooves 17a to 17h are, thereupon, formed along the laser welded part 19 at the end faces where the metallic molders butt against each other. Then, through-ports 18a to 18d are formed by these grooves at the time of joining the metallic holders to each other. The heat transmission path from the laser welded part 19 to the optical parts is thus extended and the heat is radiated from the through-ports.

9. 发明专利

JPH05333248A 失效
公开(公告)号：JPH05333248A
公开(公告)日：1993-12-17
申请号：JP14052092
申请日：1992-06-01
申请人： HITACHI CABLE
发明人： KADOI TAKAYUKI , SAITO RYUICHI , NISHIO TOMOYUKI , UETSUKA NAOTO , KUSUYAMA HIROYUKI
IPC分类号： G02B6/42 , H04B10/25 , H04B10/2507 , H04B10/12
摘要： PURPOSE:To easily load a waveguide type wavelength division/multiplex system transmit-receive module by improving the allowable quantity of axial deviation loss in an LD transmitting part and a waveguide multiplying/demultiplying part, and to improve a module characteristic by drastically reducing the return light to the LD. CONSTITUTION:A 1st lens 6 for making the optical transmitted from semiconductor laser 4 parallel rays of light and a 2nd lens 7 for condensing the light emitted from the 1st lens 6 are concentrically arranged between the semiconductor laser 4 and a waveguide substrate 8, and one end surface 7a of the 2nd lens 7 on the side of the waveguide substrate 8 and the end surface 8a of the waveguide substrate opposite to the end surface 7a are inclined by an acute angle, and these inclined surfaces are overlapped parallel to each other, and a directional coupler 11 is formed on the waveguide substrate 8, and an optical waveguide part 12 for connecting the 1st port of the coupler with a transmission optical fiber 17 and also for connecting the 2nd port with the inclined surface 8a of the waveguide substrate 8 and the optical waveguide part 14 for connecting the 3rd port with a light receiving element 9 are formed.

10. 发明专利

JPH0361915A MULTI OPTICAL FIBER CONNECTOR 失效
公开(公告)号：JPH0361915A
公开(公告)日：1991-03-18
申请号：JP19744489
申请日：1989-07-28
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE , HITACHI LTD
发明人： MIYAZAKI MITSUO , MIZUTANI MORINOBU , ABE KOICHI , KADOI TAKAYUKI , TANABE YUJI , MIZUISHI KENICHI , KATO TAKESHI
IPC分类号： G02B6/36
摘要： PURPOSE:To attain highly accurate centering also in the case of using a single mode fiber by positioning each of plural optical fibers, engaging pins and pin holes by an optical fiber array guide consisting of a silicone chip having a guide hole accurately formed by anisotropic etching work. CONSTITUTION:The optical fiber array guide highly accurately formed indepen dently of the multi optical fibers 11 is arranged and the optical fibers 11 and the guide pins are highly accurately positioned by the guide 1 and united by molding. Although the guide 1 itself should be worked more highly accurately than the allowable accuracy of centering drift of the optical fiber 11, such kind of highly accurate work can easily be executed by using a silicone chip. Consequently, the optical fiber 11 can be positioned with high accuracy exceed ing the working accuracy of the connector body 20, the centering drift can be extremely reduced and single mode fibers whose centering accuracy is espe cially strictly requested can be collectively connected by the connector.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式