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161. 发明专利

JPH06174941A SURPLUS LENGTH TREATMENT MECHANISM FOR JUNCTURE OF OPTICAL CABLE WITH CONNECTOR 失效
公开(公告)号：JPH06174941A
公开(公告)日：1994-06-24
申请号：JP32327992
申请日：1992-12-02
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIDA HIDETOSHI , KAKII TOSHIAKI , YAMANISHI TORU , MATSUMOTO MICHITO
IPC分类号： G02B6/00 , G02B6/24 , G02B6/38
摘要： PURPOSE:To smoothly treat the surplus length parts of optical cables and the coated optical fibers at their terminals at the time of an operation to connect the optical cables. CONSTITUTION:The terminal parts of the respective optical cables 1 are introduced variably in insertion length from introducing holes 19 formed at both end plates 21 of a coupling box 20 which is the supporting means of two pieces of the optical cables 1 facing each other into this coupling box. These introducing holes 19 are provided to stagger in axis at both ends of the coupling box 20. The surplus length parts 2a of the optical fiber units 2 led out of the terminal parts of the respective optical cables 1 arranged to stagger in axis are bent in the intermediate space part S of the right and left optical cables 1 and are thereby adjusted. The coupling part of the optical connector 8 exists in this space S as well. The surplus length adjustment of the optical cables 1 is executed by varying the insertion length into the coupling box 20.

162. 发明专利

JPH0674863A CORE ECCENTRICITY MEASURING METHOD FOR OPTICAL CONNECTOR AND OPTICAL CONNECTOR 失效
公开(公告)号：JPH0674863A
公开(公告)日：1994-03-18
申请号：JP22606492
申请日：1992-08-25
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： MOBARA MASAICHI , ISHIDA HIDETOSHI , NAGASAWA SHINJI
IPC分类号： G01M11/00 , G02B6/36
摘要： PURPOSE:To measure the eccentricity of an optical connector accurately by picking up the image of an irradiation illumination light from an optical fiber at a front end face side by applying the illumination light to the optical fiber which is inserted into a fiber hole from the rear end face. CONSTITUTION:An optical connector 101 where an optical fiber 41 is inserted is set to a rotary stage 11, an X-axis stage 12 and a Y-axis stage 13 are driven and a microscope 22 is aligned to one guide pin hole 105, and then focusing is made by a reflection-type auto focus (AF) device 24 and a Z-axis stage 14. Then, a light source 40 is connected and illumination light is applied to the optical fiber 41, and then the image of irradiation light is picked up by a CCD camera 23. After the similar treatment is performed to the other guide pin hole 105, both images are taken out of frame memories, the contour of the pin hole is detected, and then the center position of the pin hole 105 is calculated. The center position where the optical fiber 41 should be positioned is calculated by the center position and a design data, thus obtaining the deviation between the center position and the design position of the optical fiber 41.

163. 发明专利

JPH05307130A 失效
公开(公告)号：JPH05307130A
公开(公告)日：1993-11-19
申请号：JP11249492
申请日：1992-05-01
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： TAMEKUNI YOSHIAKI , ISHIDA HIDETOSHI , NAGASAWA SHINJI
IPC分类号： G02B6/38 , G02B6/40
摘要： PURPOSE:To enable the easy mounting of the ultra-multiple optical fiber to an optical connector. CONSTITUTION:Optical fibers 23 exposed with one end of a coated fiber ribbon 27 are inserted toward the multiple optical connector 25 arrayed and formed internally with V-grooves 24 for fixing the optical fibers. The coated fiber ribbon 27 is then lifted upward from the holding position of the multiple optical connector 25 in such a manner that the optical fibers 23 attain a prescribed insertion angle with the V-grooves 24. The optical fibers 23 are tightly fitted into the V-grooves 24 with high accuracy by utilizing the repulsive force of the bending of the optical fibers.

164. 发明专利

JPH05249347A 失效
公开(公告)号：JPH05249347A
公开(公告)日：1993-09-28
申请号：JP4933992
申请日：1992-03-06
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIDA HIDETOSHI , KAKII TOSHIAKI , MATSUMOTO MICHITO , HAIBARA TADASHI
IPC分类号： G02B6/36 , G02B6/38 , G02B6/40
摘要： PURPOSE:To enable the easy attachment and detachment of many pieces of optical connectors to be conducted by holding many pieces of the optical connectors within connector housings. CONSTITUTION:Plural pieces of the optical connectors 11 respectively mounted to the ends of optical cables 12 are supported in the connector housings 1, 2 while having optical clearance. Guide holes 9, 10 for insertion of guide pins are bored respectively in the connector housings 1, 2 and the optical connectors 11 so that the positioning at the time of joining these housings to other connector housings is executed by these guide pins. Further, clips 3 engage with the stoppers 7 of the connector housings 1, 2 at the time of joining the connector housings 1, 2, by which the joining state is maintained and fixed.

165. 发明专利

JPH0566326A OPTICAL CONNECTOR 失效
公开(公告)号：JPH0566326A
公开(公告)日：1993-03-19
申请号：JP25848391
申请日：1991-09-09
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： KAKII TOSHIAKI , HONSHIYO MAKOTO , ISHIDA HIDETOSHI , KATSUSHIME HIROSHI , YAMANISHI TORU , MIYABE KAZUMICHI , HAIBARA TADASHI , MATSUMOTO MICHITO
IPC分类号： G02B6/36 , G02B6/38 , G02B6/40
摘要： PURPOSE:To enable low-loss coupling by providing a guide-pin elastic pressure member above where a guide-pin groove and a guide pin contact each other at the groove part of an upper plate. CONSTITUTION:An upper plate 4 formed of a material similar to a hard brittle material such as ceramics is joined with the upper part of a guide groove substrate 1 which is made of the hard brittle material and has an optical fiber guide groove 2 and the guide-pin groove 3 ground in the top surface and a groove part 5 covering the guide pin 10 positioned in the guide groove 3 of the guide groove substrate 1 is formed in the upper plate 4. Then the groove part 5 is provided with the guide-pin elastic pressure member 6 only above the center of the guide pin 10. A resin formation part 7 which is molded out of epoxy resin, etc., in one body is provided at the outer periphery of the joined guide substrate 1 and upper plate 4. Then the gap el between the guide-pin elastic pressure member 6 and guide pin 10 is set to, for example,

166. 发明专利

JPH0560948A MULTI-FIBER OPTICAL CONNECTOR 失效
公开(公告)号：JPH0560948A
公开(公告)日：1993-03-12
申请号：JP22431791
申请日：1991-09-04
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIDA HIDETOSHI , SAITO KAZUTO , KAKII TOSHIAKI , HAIBARA TADASHI , MATSUMOTO MICHITO
IPC分类号： G02B6/38 , G02B6/40
摘要： PURPOSE:To accomplish the arrangement of optical fibers with high density by plurality laminating optical connector elements where plural fixing grooves for optical fibers are formed. CONSTITUTION:This optical connector 1 is constructed by laminating and mutually sticking the five optical connector elements 3 where plural fixing grooves for fibers 2 are arranged and formed in the center of its upper surface in a state where the end faces 4 on a connecting side are arranged. By thus sticking them, the fixing groove for fiber 2 of the optical connector element 3 which is a lower layer is blocked by the lower surface of the element 3 which is an upper layer. By pressing the optical fiber introduced to the fixing groove 2 by the lower surface of the element 3 which is the upper layer, the optical fiber is supported by two points in the fixing groove 2. Namely, the fixing groove 2 is V-shaped and the optical fiber whose cross section is round is tightly contact with the V-shaped groove 2, whereby the optical fiber is supported by two points.

167. 发明专利

JPH0327009A OPTICAL CONNECTOR 失效
公开(公告)号：JPH0327009A
公开(公告)日：1991-02-05
申请号：JP16167689
申请日：1989-06-23
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SAITO KAZUTO , KAKII TOSHIAKI , ISHIDA HIDETOSHI , SUZUKI SHUZO
IPC分类号： G02B6/38
摘要： PURPOSE:To absorb the fluctuation in the outside diameter of guide pins and to stably couple fibers with a low loss by elastically pressing the guide pins by means of members which can vary in the vertical direction with the guide grooves. CONSTITUTION:An optical fiber guide member 1 is formed with optical fiber guide grooves 13 and guide pin grooves 14 on a groove substrate 11. A cover plate 12 is joined onto the optical fiber guide grooves 13. The member 3 variable in the vertical direction of the grooves is provided on the guide pin grooves 14 to elastically pressurize the guide pins 2 positioned in the grooves 14 downward. Further, the elastic pressurizing force is intensified by a coupling grip 4 at the time of coupling. The guide pins 2 are, therefore, fixed to the groove substrate 12 at all times and clearances are entirely eliminated in spite of the presence of some fluctuations in the outside diameter of the guide pins 2 and, therefore, the stable coupling of the optical fibers with always the low loss is attained.

168. 发明专利

JPH02251921A OPTICAL CONNECTOR 失效
公开(公告)号：JPH02251921A
公开(公告)日：1990-10-09
申请号：JP7528689
申请日：1989-03-27
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： G02B6/36 , G02B6/40
摘要： PURPOSE:To improve the strength of an optical fiber guide member by increasing the equivalent spring constant of a member which is variable in the up-down direction of grooves, and providing nonlinear spring characteristics which allow easy deformation at the time of pin insertion, but make deformation hard after the guide pin insertion. CONSTITUTION:The member 2 which is variable in the up-down direction of the grooves are in a U shape and provided in contact with the bottom surface and both flanks of the optical fiber guide member 1, and its end parts extend up and down and are bent by the guide pin grooves 14 of the optical fiber member 1 to form clamping parts 21 for guide pins A. The guide pins A are inserted into the guide pin grooves 14 to obtain reaction forces as clamping for the guide pins A by the elastic deformation of the guide pin clamping members 21 of the member 2 which is variable in the up-down direction of the grooves. The deformation quantity of the guide pin clamping parts 21 is extremely small, the equivalent spring constant is large, and the nonlinear spring characteristics are obtained. Consequently, the breakage strength of the optical fiber guide member 1 can be improved.

169. 发明专利

JPH02251920A OPTICAL CONNECTOR 失效
公开(公告)号：JPH02251920A
公开(公告)日：1990-10-09
申请号：JP7528589
申请日：1989-03-27
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： G02B6/36 , G02B6/40
摘要： PURPOSE:To improve the breakage strength of an optical fiber member and the productivity of the optical connector by employing annular structure for a member which is variable in the up-down direction of grooves where guide pins are clamped. CONSTITUTION:Step parts 21 are formed above the guide pin grooves 14 of a grooved substrate 11 in contact with the bottom surface and both flanks of the optical fiber guide member 11 and the member 20 which is variable in the up-down direction of the grooves of the annular structure is provided surrounding the optical fiber guide member 1. The guide pins A which are inserted into the guide pin grooves 14 are therefore pressed downward against the grooves 14 and clamped through the elastic deformation of the step parts 21. At this time, the step parts 21 deform upward and their deformation quantity DELTAdelta is very small, but the equivalent spring constant is sufficiently high, so that a sufficient clamping force is obtained. Further, the member 20 are in the annular structure, so the deformation caused by the insertion of the guide pins A makes the members 20 to contract laterally, so no gap is formed between the flank of the member 20 and the flank of the optical fiber guide member 1. Consequently, the breakage strength of the optical fiber guide member 1 and the productivity of the optical connector can be improved.

170. 发明专利

JPH01239510A OPTICAL FIBER COUPLING MEMBER 失效
公开(公告)号：JPH01239510A
公开(公告)日：1989-09-25
申请号：JP6688288
申请日：1988-03-19
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KAKII TOSHIAKI , SAITO KAZUTO , ISHIDA HIDETOSHI , SUZUKI SHUZO
IPC分类号： G02B6/38
摘要： PURPOSE:To securely join a guide groove substrate and a plate with a thin film so as not to affect optical fiber guide grooves and guide pin grooves by providing at least an eutectic alloy layer to the joint layer between the guide groove substrate and the plate. CONSTITUTION:The flat plate 12 is joined by the eutectic alloy layer 15 onto the guide groove substrate 11 worked with the optical fiber guide grooves 13 atop the same. The eutectic crystal forming the joint layer is so considered that not the two components are merely mingled with each other but bonding strength acts between the crystal particles of both. The extremely secure joint surfaces are thus formed and the use of the thin film is enabled. The secure joining is thereby attained with the thin film and the optical fiber coupling member having high reliability is obtd. with high mass productivity.

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