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1. 发明专利

JPH0339904A TREATMENT OF TERMINATION OF OPTICAL FIBER 失效
公开(公告)号：JPH0339904A
公开(公告)日：1991-02-20
申请号：JP18651489
申请日：1989-07-18
申请人： MITSUBISHI CABLE IND LTD , MITSUBISHI HEAVY IND LTD
发明人： HAYASHI TOKUJI , SATAKE TAKESHI , SUZUKI KOICHI
IPC分类号： G02B6/00
摘要： PURPOSE:To form the end face of an optical fiber to a specular surface state with extremely high accuracy by applying a flame to the end face and thereby heating the end face. CONSTITUTION:A nozzle 7 is brought near to the end face 4 of the optical fiber 1 along the axial center direction to apply the flame 8 to the end face 4 of the optical fiber 1. Namely, the tip of the inside flame 12 is applied to the end face 4. The part near the end face is enclosed by the outside flame 13. The end face 4 is heated to 1,300 to 1,800 deg.C to burn away the deposits on this end face 4 and to melt (the quartz fiber is softened by the heating without being liquefied and this state is included in 'melt' referred to in this case) by as much as the extremely thin thickness. The end face of the optical fiber is made into the specular surface with the extremely high accuracy in this way. The optical fiber having the treated incident end face and exit end face is adequate for a high-energy laser.

2. 发明专利

JPH03148608A LARGE-OUTPUT LASER OPTICAL TRANSMITTING STRUCTURE 失效
公开(公告)号：JPH03148608A
公开(公告)日：1991-06-25
申请号：JP28721489
申请日：1989-11-02
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI CABLE IND LTD
发明人： SATAKE TAKESHI , HAYASHI TOKUJI , KIMURA MASAKATSU , SUZUKI KOICHI , TSUKAMOTO YOSHIMASA
IPC分类号： G02B6/24 , G02B6/36
摘要： PURPOSE:To easily and speedily replace a damaged optical fiber by providing a connector connection part which can freely be connected and disconnected nearby a bad environment part of a transmission line for large-output laser light. CONSTITUTION:The large-output laser light which is generated by a laser source 37 in a safety area S is transmitted to a projection end 51 in a bad environment area D by the fiber transmission path F and the connector connection part 52 which can freely be connected and disconnected is arranged nearby the border between the bad environment area D and safety area S. When an optical fiber is damaged, part of the optical fiber in the bad environment area D is damaged earlier than other parts. Only the damaged part is replaced or the optical fiber is switched to an unused optical fiber which is installed previously in the bad environment area as a stand-by fiber. Consequently, the optical fiber can easily and speedily be replaced.

3. 发明专利

JPH0444367B2 失效
公开(公告)号：JPH0444367B2
公开(公告)日：1992-07-21
申请号：JP21557584
申请日：1984-10-15
申请人： MITSUBISHI CABLE IND LTD
发明人： SUZUKI KOICHI , NAKANO MASANOBU , KITSUNAI MASA , KANEKO HIROSHI , SUDO TAKAHIDE , HIRAOKA MAKOTO
IPC分类号： H01B13/26 , H01B7/17

4. 发明专利

JPS62132147A TEMPERATURE CORRECTION FOR DECISION ON DETERIORATION OF WIRE COVERING 失效
公开(公告)号：JPS62132147A
公开(公告)日：1987-06-15
申请号：JP27383385
申请日：1985-12-04
申请人： MITSUBISHI CABLE IND LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOTSUYA MASAMI , SUZUKI KOICHI , IWATA KOICHI , YOSHIZAWA HIDEKI , OSHIMA HIROSHI
IPC分类号： G01N3/40 , G01M13/00 , G01M99/00 , G01N3/32
摘要： PURPOSE:To always judge the degree of deterioration of wire covering accurately detecting the hardness at a reference state, by pressurizing a decision unit with pressure needle and providing a temperature sensor. CONSTITUTION:A decision unit body 1 is equipped with a pressure needle 4, a temperature sensor 8 and the like. Then, a receptacle 5 is retracted to allow a covered wire W into a broader clearance 14 between the receptacle and the pressure needle 4. Under such a condition, when an operator holds a grip section of a lever 13, the receptacle 5 advances together with a lever 13 to grasp the wire W securely between the receptacle and a mobile guide 10. The pressure needle 4 presses the wire W by a pressure force with a pressure spring 6 and the displacement thereof along the length of the pressure needle 4 is varies with the hardness of a cover body of the wire W. The current displacement is detected with a displacement sensor 7 to measure the hardness thereof. The sensor 8 also gets in contact with a cover body to measure the temperature thereof. In addition, a circuit section 2 calculates the hardness of the cover boy at a reference temperature by a computation processing from the hardness detected with a sensor 7, the temperature detected with the sensor 8 and the like and the results of the decision are displayed 3.

5. 发明专利

JP2000182450A CABLE IDENTIFICATION STRUCTURE 失效
公开(公告)号：JP2000182450A
公开(公告)日：2000-06-30
申请号：JP35721498
申请日：1998-12-16
申请人： MITSUBISHI CABLE IND LTD
发明人： SUZUKI KOICHI , MATSUDA NOBUYOSHI
IPC分类号： H01B13/22 , H01B13/00 , H01B13/34
摘要： PROBLEM TO BE SOLVED: To prevent errors in connection of a cable and uniformly manufacture the cable by continuously installing a plurality of identifying belt-like bodies having different colors on the outer circumferential surface of the cable in the length direction, so as to be capable of peel off. SOLUTION: A plurality of identifying belt-like bodies 1a-1f are installed in the length direction on the outer circumferential surface of a cable sheath 5 of a coaxial cable C. As a specific method, a sheath 7 for a belt-like body having a thickness of 1 mm or less is fit closely to the outside of the cable sheath 5 to form a double sheath. A plurality of notches are formed in the length direction to form the identifying belt-like bodies 1a-1f. A plurality of belt-like part, having different colors are formed in a belt-like body forming portion E of the sheath 7 and seven boundary lines of adjacent colors, are notched to form the belt-like bodies 1a-1f. Each color of red, blue, yellow, green, brown, and white are set for six identifying belt-like bodies. The belt-like bodies 1a-1f can be peeled off from the outer circumferential surface 6.

6. 发明专利

JPH05147966A ULTRAVIOLET RESISTANT QUARTZ GLASS FIBER 失效
公开(公告)号：JPH05147966A
公开(公告)日：1993-06-15
申请号：JP10047791
申请日：1991-04-04
申请人： SHINETSU CHEMICAL CO , MITSUBISHI CABLE IND LTD
发明人： TAKITA MASATOSHI , HAYAMIZU HIROYUKI , SUZUKI KOICHI
IPC分类号： C03B37/027 , C03B20/00 , C03B37/012 , C03B37/018 , G02B6/00 , G02B6/04 , G02B23/26
摘要： PURPOSE:To provide a quartz glass optical fiber excellent in ultraviolet resistance. CONSTITUTION:This quartz glass fiber is an optical fiber composed of a quartz glass core and a doped quartz glass clad layer on the core and the core has 10-1,000ppm OH group content and 50-5,000ppm fluorine content and does not practically contain chlorine.

7. 发明专利

JPH03128429A METHOD FOR MEASURING DEGREE OF DETERIORATION OF IMAGE GUIDE 失效
公开(公告)号：JPH03128429A
公开(公告)日：1991-05-31
申请号：JP26699489
申请日：1989-10-13
申请人： MITSUBISHI CABLE IND LTD
发明人： HAYAMIZU HIROYUKI , SUZUKI KOICHI
IPC分类号： G01M11/00 , G01M11/02 , G02B6/00
摘要： PURPOSE:To evaluate and estimate the life of the image guide more accurately by recognizing the deterioration of the image guide by digitizing the degree of deterioration which is sensed with the human naked eyes or the degree of deterioration which is close to it. CONSTITUTION:A graph shows a graph example (curve A) of an output to the wavelength of incident light and a graph example (curve B) of the product of the output nd a standard relative luminousity factor to the wavelength of the incident light when the incident light is made incident on the image guide to be inspected from a certain visible light source. Namely the image guide to be inspected is deteriorated as specified to prepare both the deteriorated sample and an undeteriorated sample and wavelength-output characteristics of the same visible light source are measured as to both the samples, thereby drawing a curve which indicates the product of the output and relative luminousity factor at wavelength on the axis of ordinate and the wavelength on the axis of abscissa. Then the area inside the curve in a desired wavelength range is found and the degree of deterioration is evaluated from the ratio of the area S1 of the deteriorated sample to the area S0 of the undeteriorated sample. Thus, the degree of deterioration of the image guide is weighted by the standard relative luminousity factor, so the degree of deterioration which is sensed with the human naked eyes or the degree of deterioration which is close to it can be recognized as a physical quantity.

8. 发明专利

JPS62132145A DECISION ON DETERIORATION IN WIRE COVER 失效
公开(公告)号：JPS62132145A
公开(公告)日：1987-06-15
申请号：JP27383485
申请日：1985-12-04
申请人： MITSUBISHI CABLE IND LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOTSUYA MASAMI , SUZUKI KOICHI , IWATA KOICHI , YOSHIZAWA HIDEKI , OSHIMA HIROSHI
IPC分类号： G01N3/40 , G01M13/00 , G01M99/00 , G01N3/32
摘要： PURPOSE:To enable accurate decision on the acceptance according to the type of a covered wire, by setting a reference value on the decision of deterioration in the covered wire typewise. CONSTITUTION:A measuring device body 1 equipped with a pressure needle 5, a receptacle 6, a displacement sensor 8, a temperature sensor 9 and the like. The receptacle 6 is retractable to the left together with a lever 14. In operation, the receptacle 6 is retracted to allow a covered wire W to be inserted into a broader clearance 15 between the receptacle 6 and a pressure meter 5. The pressure meter 5 presses the wire W with a spring 7 and the displacement changes along the length of the pressure meter 5. At this point, the displacement is detected with a sensor 8 and simultaneously with the measurement of the hardness of a cover body, the sensor 9 gets in contact with the cover body to detect the temperature thereof. In addition, an arithmetic circuit section 2 calculate he hardness of the cover body at a reference temperature by a specified computation processing from the hardness detected with the sensor 8 and the temperature detected with the sensor 9. Based on the hardness, the usable acceptance of the covered wire is decided.

9. 发明专利

JPH04343316A SCOPE OSCILLATING STRUCTURE 失效
公开(公告)号：JPH04343316A
公开(公告)日：1992-11-30
申请号：JP14547791
申请日：1991-05-20
申请人： MITSUBISHI CABLE IND LTD
发明人： YASUDA MIKIJI , SUZUKI KOICHI , SEMIMOTO KENZO
IPC分类号： A61B1/00 , G02B6/06 , G02B23/24
摘要： PURPOSE:To thin the diameter without increasing the number of parts. CONSTITUTION:The structure is provided with plural short cylindrical bodies 2 provided along the longitudinal direction, and a pair of oscillating wires 4, 5 inserted through a pair of axis center direction through-holes 3, 3 penetrated and. provided on a peripheral wall 5 of the short cylindrical body 2. On one end face 5a of the peripheral wall 5 of the short cylindrical body 2, a pair of opposed projecting parts 6, 6 of a semidisk shape are provided projectingly, and on the other end face 5b of the peripheral wall 5 of the short cylindrical body 2, a pair of opposed recessed parts 7, 7 are recessed and provided. When each short cylindrical body 2 is provided along the longitudinal direction, the projecting parts 6, 6 are fitted into the recessed parts 7, 7 of the short cylindrical bodies being adjacent to each other so as to be oscillatable.

10. 发明专利

JPS62132146A MEASUREMENT FOR DETERIORATION OF WIRE COVER 失效
公开(公告)号：JPS62132146A
公开(公告)日：1987-06-15
申请号：JP27383285
申请日：1985-12-04
申请人： MITSUBISHI CABLE IND LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOTSUYA MASAMI , SUZUKI KOICHI , IWATA KOICHI , YOSHIZAWA HIDEKI , OSHIMA HIROSHI
IPC分类号： G01N3/40 , G01M13/00 , G01M99/00 , G01N3/32
摘要： PURPOSE:To enable measurement of the hardness of a cover body without errors, by grasping a wire portion as covered steel wire under pressure between a receptacle and a pressure needle to detect the penetration displacement of the pressure needle into a cover body. CONSTITUTION:A wire portion as covered steel wire 37 is grasped under pressure between a receptacle 27 and a pressure needle 15. A covered wire W has conductors 36 and 36 and a reinforcing steel wire 37 covered integral with a cover body 38. The wire W is introduced between a mobile guide 7 and the receptacle 27 and one conductor 36 portion is set to position on an upper step 17a of a guide 7 while the steel wire 37 to position on a lower step 17b. Then, a wire grasping arm 24 approaches the guide 7 while the steel wire 37 of the wire W is grasped between the receptacle 27 and wire grasping surface 18 of the guide 7. Under such a condition, as a grip lever is gripped, a spring bar is deflected so that an arm 24 is elastically energized by turning by a fixed force. At this point, the penetration displacement of the pressure meter 15 into the cover body 38 is detected, thereby enabling accurate measurement of the hardness of a cover body.

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