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1. 发明专利

JPS56153315A LIGHT BEAM DEFLECTOR 失效
公开(公告)号：JPS56153315A
公开(公告)日：1981-11-27
申请号：JP5617180
申请日：1980-04-30
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： TOKUDA MASAMITSU , SHIRAISHI SATOSHI , TAKIMOTO HIDEYUKI
IPC分类号： G02B26/10 , G02B6/04 , G02B6/35 , G02B7/182
摘要： PURPOSE:To deflect light beam at a high speed by making the leading end of an optical fiber freely oscillatable. CONSTITUTION:The intermediate part of an optical fiber 12 connected at its root end to a light source 11 is fixed to the root end of a housing 13 having a tapered pipe shape, and the leading end part of the optical fiber is made freely oscillatable around this root end. A rod lens 14 for light focusing and a rigid oscillating cylinder 15 conneting the fiber 12 are fitted to this leading end part, and the root end part of said cylinder is supported in the housing 13 via a spring 16. Magnetic materials 19, 20 are affixed to the leading end of said cylinder and the degree of deflection of the fiber 12 is changed by controlling the magnitude of the electric current to be flowed to a pair of electromagnetics 17, 18 which are fixed in the housing and oppose to each other by holding the fiber 12 therebetween in its diametral direction.

2. 发明专利

JPS5411753A REINFORCING METHOD OF OPTICAL FIBER CONNECTING PARTS 失效
公开(公告)号：JPS5411753A
公开(公告)日：1979-01-29
申请号：JP7734577
申请日：1977-06-28
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： UCHIDA NAOYA , MATSUNO KOUICHIROU , TAKIMOTO HIDEYUKI
IPC分类号： G02B6/24 , G02B6/38 , H01B11/00
摘要： PURPOSE:To obtain stable transmission characteristics even under severe environmental conditions by connecting end faces of core wires, putting a pipe thereon to provide a mechanical reinforcement and providing a cushion layer having high flexibility between the core wires and the reinforcing pipe.

3. 发明专利

JPS5461557A MEASURING DEVICE FOR TRANSMISSION LOSS OF OPTICAL FIBERS 失效
公开(公告)号：JPS5461557A
公开(公告)日：1979-05-17
申请号：JP12825677
申请日：1977-10-25
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： TOKUDA MASAMITSU , TAKIMOTO HIDEYUKI
IPC分类号： G01M11/02 , G01M11/00 , G02B6/00
摘要： PURPOSE:To accomplish the measurements at the indidence side by providing a terminal processor which has a highly reflective terminal device at the emanating side and a three-dimentional position adjusting jig at the incidence side. CONSTITUTION:The incidence end of an optical fiber 1 is dipped in a regulating liquid 2-3 having the same refractive index as the core material in a holder body 2-1, the position of which is adjusted by the three-dimentional position adjusting device 3 of a terminal processor 2, so that it abuts against a transparent member 2-2 made of the same material as the core material which is formed with a nonreflective coating 2-4. On the other hand, the emanating end of the fiber 1 is dipped in the regulating liquid similar to the adjusting device 3 and abuts against the reflective film having highly reflective characteristics for the waveforms of a light source so that the incident light to be measured having a sufficiently small core diameter from a light source 4 and an incidence optical system 5 is reflected at the terminal device 3 at the emanating side so that it passes back and forth in the optical fiber 1. As a result, if the photoelectricities of the incidence light and its reflected light are detected by optical detectors 6 and 7 which are connected at a low connection loss with the optical system 5, the loss measurement can be accomplished at the incidence end to require no communication with the emanating end so that the measurement can be accomplished easily and reliabliy in site.

4. 发明专利

JPS5657015A OPTICAL FIBER CONNECTION METHOD AND DEVICE 失效
公开(公告)号：JPS5657015A
公开(公告)日：1981-05-19
申请号：JP13397579
申请日：1979-10-16
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： MATSUMOTO MICHITO , IWASAKI KEIICHIROU , TAKIMOTO HIDEYUKI
IPC分类号： G02B6/36
摘要： PURPOSE:To make it possible to transmit the photosignal from a rotating material to a fixed material, by connecing respective optical fibers, which are fixed to centers of the rotating jack and the fixed jack, rotatably to the plug through the bearing coaxially. CONSTITUTION:Rotary moving fiber 11 has the center axis matched to jack 12 and is fixed. Here, jack 12 is held by the plug with a minimum friction by ball bearing held coaxially by pawl 14 inside plug 15. Meanwhile, fixed fiber has the center axis matched to jack 12' and is fixed. Jack 12' is inserted into the plug by screw 17. Ball bearing 13' held coaxially by pawl 14 is fitted to one face of jack 12', and jack 12' is screwed until it is brought into contact with the other jack 12. By this constitution, a rotatable optical fiber connection device can be obtained.

5. 发明专利

JPS5618738A MEASURING METHOD FOR OPTICAL FIBER CABLE 失效
公开(公告)号：JPS5618738A
公开(公告)日：1981-02-21
申请号：JP9393179
申请日：1979-07-23
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： TANIFUJI TADATOSHI , TAKIMOTO HIDEYUKI
IPC分类号： G01M11/02 , G01M11/00 , G02B6/00
摘要： PURPOSE:To improve the efficiency in measuring an optical fiber cable by setting the frequency of the local oscillator of the reception unit before the arrival of the modulated wave of the corresponding frequency, and automatically and stepwisely setting the local oscillator to the subsequent frequencies after detecting said modulated wave. CONSTITUTION:The transmission end of an optical fiber 3 is provided with a sweep-type signal generator 1 and a laser source 2. The RF output signal from the signal generator 1 optically modulates the laser source 2, and the optically modulated wave is made incident on the optical fiber 3 being measured. At the reception end of the optical fiber 3, an out going ray of light is converted into electricity in a light detector 4, and the optically modulated wave component is detected. The frequency of the output of the detector 4, which varies with the lapse of sweep time, is detected and outputted only when the signal of the frequency determined according to the local-oscillated frequency f1 and the intermediate frequency is inputted to a heterodyne detector 6. Then, in the similar manner, the local-oscillated frequency is discretely varied, and the detection output and the local-oscillated frequency are recorded on a display 10.

6. 发明专利

JPS5595905A OPTICAL CABLE AND HOLDING MEMBER THEREOF 失效
公开(公告)号：JPS5595905A
公开(公告)日：1980-07-21
申请号：JP271579
申请日：1979-01-11
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： YONECHI SHINICHI , HORIMA HIROAKI , TAKIMOTO HIDEYUKI
IPC分类号： H01B11/00 , G02B6/00 , G02B6/44
摘要： PURPOSE:To make production and assembling easy by providing a cylindrical hollow part approximately equal to the diameter of a fiber cord, making one surface plane and inserting the fiber cord through the slit in the axial direction provided on the face opposing thereto. CONSTITUTION:An optical fiber cord 10 consists of an optical fiber 1, reinforcing layer 2 and covering 3. A wiring part 20 is formed by a cylindrical grip 5 of the diameter approximately the same as the diameter of the fiber cord 10 in the axial direction, one plane part 4 and a slit 6 extending in the axial direction to the face opposing to said face. The width of the slit 6 is selected finer than the diameter of the fiber cord 10 and the fiber cord 10 is inserted through the slit 6 into the cylindrical space and is thereby gripped. Hence, wiring and production may be made easier.

7. 发明专利

JPS5461558A MEASUREMENT OF FREQUENCY CHARACTERISTICS OF OPTICAL FIBER CABLE 失效
公开(公告)号：JPS5461558A
公开(公告)日：1979-05-17
申请号：JP12825777
申请日：1977-10-25
申请人： NIPPON TELEGRAPH & TELEPHONE , SUMITOMO ELECTRIC INDUSTRIES
发明人： TOKUDA MASAMITSU , TAKIMOTO HIDEYUKI
IPC分类号： G01M11/00 , G01M11/02 , G02B6/00
摘要： PURPOSE:To measure the frequency characteristics without the use of local oscillatory signals by transmitting two optical intensity modulated lights of constant modulated frequency difference. CONSTITUTION:The modulated signals of frequency f, which are generated by a signal generator 1, are subjected to frequency conversion by a frequency converter 5 so that the modulated signal frequency f is varied to generate modulated signals of frequency f+DELTAf having the difference DELTAf always constant. The two modulated lights from light sources 3 and 6, which have their intensities modulated in accordance with those two modulated signals, enter an optical fiber 10 through their respective beam splitters so that the emanating lights are converted into electric signls by an optical detector 11. The resultant photocurrent is squarely detected by a mixer 13 so that only the fundamental frequency component is detected by a narrow band filter 14 having a passable center frequency of f and a band width less than 2DELTAf. As a result, the local oscillatory signals for synchronous detection can be dispensed with. As a result, the measurement of the frequency characteristics can be accomplished easily and reliably without providing any coaxial cable for transmission of the local oscillatory signals.

8. 发明专利

JPS6152402B2 失效
公开(公告)号：JPS6152402B2
公开(公告)日：1986-11-13
申请号：JP7136681
申请日：1981-05-14
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKIMOTO HIDEYUKI , KATO MASAAKI
IPC分类号： G01D5/249 , G06K7/10

9. 发明专利

JPS5858700A SIGNAL DETECTOR FOR LIGHT ATTENUATING TYPE SENSOR 失效
公开(公告)号：JPS5858700A
公开(公告)日：1983-04-07
申请号：JP15722181
申请日：1981-10-02
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKIMOTO HIDEYUKI
IPC分类号： G08C23/04 , G08C23/00 , G08C25/00

10. 发明专利

JPS5443754A EXCITING METHOD OF OPTICAL FIBER 失效
公开(公告)号：JPS5443754A
公开(公告)日：1979-04-06
申请号：JP11100777
申请日：1977-09-13
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKIMOTO HIDEYUKI
IPC分类号： G02B6/42
摘要： PURPOSE:To effect highly efficient excitation by adjusting the positions of the exciting end faces of a light source and an optical fiber such that the intensity of the light waves, which are reflected on the other end face other than the exciting end face of the optical fiber, may become the maximum. CONSTITUTION:The light waves 6 emanating from a light source 4 pass through an optical brancher 11 so that they are excited by the exciting end face 2 of an optical fiber 1. The light waves 7 thus excited are reflected on the other end face 3 so that the reflected light 10 advances toward the exciting end face 2 until it emanated therefrom. The reflected waves 10 are introduced into an optical detector 5 by an optical brancher 11. The position of the exciting end face 2 is adjusted by a fine adjusting jig 9 in a manner to maximize the output of the detector 5 so as to attain a highly effecient excitation. According to the present invention, the position adjusting operation of the exciting end face 2 and the operation for measuring the output of the detector 5 are accomplished adjacent to each other without fail. Thus, it is convenient and possible to eliminate wireless or wired communication for the above information transmission.

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