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1. 发明专利

JPS6436222A SIMULTANEOUS CONTROL METHOD FOR TWO EQUIPMENTS 失效
公开(公告)号：JPS6436222A
公开(公告)日：1989-02-07
申请号：JP19210387
申请日：1987-07-31
申请人： SUMITOMO ELECTRIC INDUSTRIES , ANDO ELECTRIC
发明人： MORIKAWA HAJIME , HATTORI YASUJI , ENDO YOSHIO , YANAGISAWA KOJU
IPC分类号： H04B10/03 , H04B1/74
摘要： PURPOSE:To control simultaneously equipments installed at both ends of a transmission medium by using a pulse having the same waveform as that of a control signal so as to measure a time reciprocating the transmission medium prior to the production of the control signal and setting a time being a half the reciprocating time for a delay circuit. CONSTITUTION:A 1st pulse is generated at first by the pulse generator 1 and the 1st pulse reaches a pulse generator 4 through a transmission medium 13 and the pulse generator 4 generates a 2nd pulse. Then the time of the 2nd pulse reaching a counter 5 through the medium 13 is counted by the counter 5 and a half the count of the counter 5 is set as the delay time of the delay circuit 6. In generating the 1st pulse from the pulse generator 1 as the control signal of the devices 7, 8, the 1st pulse is subject to delay by the delay circuit 6 and the output of the delay circuit 6 activates the device 7. Then the 1st pulse as the control signal activates the device 8 through the medium 13. Thus, the time of the device 7 to be operated and the time for the device 8 to be operated are nearly equal to each other and the arrival time difference of the control signal is made within 0.5ms sufficiently.

2. 发明专利

JPH02112706A POSITION DETECTING CIRCUIT 失效
公开(公告)号：JPH02112706A
公开(公告)日：1990-04-25
申请号：JP26552788
申请日：1988-10-21
申请人： ANDO ELECTRIC , SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKEI SHOICHI , YANO TETSUO , HATTORI YASUJI , SUZUKI SHUZO
IPC分类号： G01B11/00
摘要： PURPOSE:To simplify the constitution of an optical system by knowing a distance between a beam waist position and an object to be measured from a rise or fall time of a detected signal, and knowing a position relation before and behind the object to be measured from a scattered light of the object to be measured. CONSTITUTION:When an object 6 to be measured is separated from a beam waist position, the beam diameter which intersects the object 6 to be measured becomes large, therefore, a rise of a signal outputted from a photodetector 5 is varied as a broken line from a full line. When the beam is varied by a distance without varying a distribution state in accordance with an expression I, for instance, like an interval extending from 10 to 90%, it is known by a calculation that an interval corresponding to some prescribed ratio of power is proportional to a beam diameter W. As shown clearly in the expression I, when a distance X is fixed, the beam diameter W is fixed respective of a distance in the scanning direction. Accordingly, the distance X in the optical axis direction is known from the time (t) irrespective of the position in the scanning direction of the object 6 to be measured. In such a way, the constitution of an optical system is simplified.

3. 发明专利

JPH0231102A OPTICAL DIMENSION MEASURING DEVICE 失效
公开(公告)号：JPH0231102A
公开(公告)日：1990-02-01
申请号：JP18202688
申请日：1988-07-21
申请人： ANDO ELECTRIC , SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKEI SHOICHI , YANO TETSUO , HATTORI YASUJI , SUZUKI SHUZO
IPC分类号： G01B11/02
摘要： PURPOSE:To obtain a measured result stable over a long period of time by obtaining a measured value, wherein the variation of a circumferential condition is corrected, by subtracting the deviation data of a reference master from that of an object to be measured. CONSTITUTION:A reference 8 to be used has material quality and a wire diameter almost same to those of an object 5 to be measured and is arranged between lenses 3, 4. In this case, the object 5 to be measured and the master 8 are arranged in parallel so as not to become shadows each other. Deviation is caused by the thermal expansion or contraction of the object 5 to be measured or master 8 according to circumstances but, for the most part, by the mechanical distortion, expansion and contraction of the first measuring systems 3-7 and the second measuring systems 11-14 or the output variation of a light source 1, the intensity of beam and the variation of the center of gravity. Therefore, by subtracting the deviation of the master 8 from the measured result of the object 5 to be measured, the correct measured value of the object 5 to be measured can be calculated.

4. 发明专利

JPH0228504A MEASURING INSTRUMENT FOR OUTSIDE DIAMETER 失效
公开(公告)号：JPH0228504A
公开(公告)日：1990-01-30
申请号：JP17814688
申请日：1988-07-19
申请人： SUMITOMO ELECTRIC INDUSTRIES , ANDO ELECTRIC
发明人： HATTORI YASUJI , SUZUKI SHUZO , TAKEI SHOICHI , YANO TETSUO
IPC分类号： G01B11/08
摘要： PURPOSE:To improve a stability for a measuring value by using a single polarizing laser with a stabilized frequency as a light source. CONSTITUTION:The single polarizing laser with the stabilized frequency, e.g., a frequency stabilized He-Ne laser for the single polarizing oscillation is used as the light source 18. Luminous fluxes of the laser 18 oscillated by a power source 16 for the laser are transmitted to a rotary mirror 3 through a mirror 6. This rotary mirror 3 is provided on a driving system 2 and driven by a driver 1, thereby the luminous fluxes are deflected in an internal of 11-11A and made to be the parallel luminous fluxes 12-12A through a lens 13. These parallel luminous fluxes 12-12A are orthogonally crossed with an axis direction of a columnar object 7 to be inspected, by which interrupted in the time interval proportional to the outside diameter, then transmitted to a detector 9 through a condensing lens 8 and an aperture 17. A photoelectric conversion is made for an output signal of this detector 9, and the signal is transmitted to a signal processing circuit 14 through an amplifier 10. In this circuit 14, an edge is detected by the beam which is interrupted with the object 7 to be inspected, and the outside diameter of the object 7 is obtained by means of counting a clock pulse for the edge interval.

5. 发明专利

JPH08338918A FORMATION OF OPTICAL WAVEGUIDE TYPE DIFFRACTION GRATING AND FORMING DEVICE THEREFOR 失效
公开(公告)号：JPH08338918A
公开(公告)日：1996-12-24
申请号：JP8785096
申请日：1996-04-10
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： INOUE SUSUMU , MOBARA MASAICHI , HATTORI YASUJI , ITO MASUMI , IWASHIMA TORU
IPC分类号： G02B6/00 , G02B5/18 , G02B6/02 , G02B6/12 , G02B6/13
摘要： PURPOSE: To provide a process for forming optical waveguide type diffraction gratings capable of forming chirped gratings having good accuracy with simple constitution. CONSTITUTION: An optical fiber 1 has a core added with Ge and is irradiated with the interference fringes of light of a wavelength about 240nm in the core part, by which the Bragg diffraction gratings are formed. An irradiation part 2 is used to irradiate the optical waveguide part of the optical waveguide with the light of the wavelength to induce a refractive index change therein and has a gentle light intensity distribution to the optical fiber 1. The light signal from a light source 4 is introduced via an optical fiber coupler 3 into the optical fiber 1 in the irradiating stage and the reflected signal from a diffraction grating forming part 1a is measured via the optical fiber coupler 3 in a measuring part 5. The irradiation by the irradiation part 2 is stopped where the desired result of the measurement is obtd.

6. 发明专利

JPH08190814A LONG CABLE AND CABLE IDENTIFICATION METHOD 失效
公开(公告)号：JPH08190814A
公开(公告)日：1996-07-23
申请号：JP136095
申请日：1995-01-09
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： SAIGO TOSHIAKI , WATABE KAZUO , HISHIKAWA YOSHIFUMI , MOTOMIYA HIDETOSHI , HATTORI YASUJI , YAMASHITA KATSUYA , OTSUKI FUMIO
IPC分类号： H01B7/36
摘要： PURPOSE: To conduct the identification of a cable individual. CONSTITUTION: Identical mark sections on which identical marks 20 are impressed are provide on the surface of the coating portion 12 of a long cable, and the different marks 20 are impressed on the respective identical mark sections. The length L of the identical mark section is set to be shorter than the shortest length of lengths into which the long cable is to be cut.

7. 发明专利

JPH08136742A METHOD FOR IDENTIFYING OPTICAL LINE AND LIGHT INTERFERENCE METER 失效
公开(公告)号：JPH08136742A
公开(公告)日：1996-05-31
申请号：JP27778894
申请日：1994-11-11
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： MOBARA MASAICHI , INOUE SUSUMU , SHITOMI TATSUHIKO , HATTORI YASUJI , YAMASHITA KATSUYA , OTSUKI FUMIO
IPC分类号： G01B9/02 , G01M11/00 , G02B6/00 , H04B10/07 , H04B10/071 , H04B10/077
摘要： PURPOSE: To easily and exactly identify respective optical lines at their ends. CONSTITUTION: The optical lines 50 are provided thereon with identifying marks 39 consisting of signal groups composed of plural reflection parts and reference reflection parts. The relative positions thereof are changed for every optical line 50 to provide the identification marks for the respective optical lines. Inspection light is made incident on the optical lines 50 and the reflected light returning from the respective reflection parts is detected by a Michelson interferometer 30. The identification marks 39 are detected in accordance with the optical path differences of the respective reflected light rays to identify the respective optical lines.

8. 发明专利

JPH05307119A 失效
公开(公告)号：JPH05307119A
公开(公告)日：1993-11-19
申请号：JP11280492
申请日：1992-05-01
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： INOUE SUSUMU , HATTORI YASUJI , OTSUKI FUMIO , KATSUYAMA YUTAKA
IPC分类号： G01M11/00 , G02B6/00
摘要： PURPOSE:To provide a method for easily and accurately identifying an optical path at the end part of the optical path. CONSTITUTION:An identification mark 39 constituted of plural reflection parts for reflecting only a specific wavelength is installed on the optical path 50, and the wavelength of the reflection light from the identification mark 39 which is obtained when inspection light is made incident from one end of the optical path is measured, and then, the optical path 50 is identified based on the measured wavelength. When the inspection light is made incident from one end of the optical path 50 by the light emitting part 20, the light is reflected on each reflection part of the identification mark 39, and then, it turns back to the incident end. By measuring the wavelength of the reflected light by a light receiving part 21 after making the combination of the reflection wavelength of each reflection part as the identification mark 39 differ at every optical path 50, the optical path 50 is identified based on the measurement result.

9. 发明专利

JPH04107510A BEAM EXPANDING FIBER 失效
公开(公告)号：JPH04107510A
公开(公告)日：1992-04-09
申请号：JP22513190
申请日：1990-08-29
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIGURO YOICHI , HIRAI SHIGERU , HATTORI YASUJI
IPC分类号： G02B6/02 , G02B6/036 , G02B6/10
摘要： PURPOSE:To obtain the beam expanding fiber which has small loss even when bent by providing a 1st and a 2nd specific clad outside a core. CONSTITUTION:This fiber is a single-mode fiber consisting of the core 11 with a 8mum diameter, the 1st clad 12 with a 40mum diameter, and the 2nd clad with a 125mum diameter. The core 11 is made of quartz glass doped with germanium dioxide, the 1st clad 12 is made of quartz glass doped with fluorine F, and the 2nd clad 13 is made of undoped quartz glass. Then the specific refractive index difference between the core 11 and 1st clad 12 is 0.3% and the specific refractive index difference between the 1st clad 12 and 2nd clad 13 is 0.3%. Consequently, even if the optical fiber is curved at a part where the mode field diameter is increased, light is prevented from exiting from the fiber because of the refractive index difference between the 1st clad 12 and 2nd clad 13.

10. 发明专利

JPH0426816A OPTICAL ISOLATOR 失效
公开(公告)号：JPH0426816A
公开(公告)日：1992-01-30
申请号：JP13123690
申请日：1990-05-23
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIGURO YOICHI , HIRAI SHIGERU , HATTORI YASUJI
IPC分类号： G02B6/00 , G02B6/024 , G02B6/28 , G02B27/28
摘要： PURPOSE:To facilitate the manufacture and to improve the performance of coupling with an optical fiber by drawing two places of a punch fiber and providing polarized- light demultiplexing and multiplexing parts, forming two notchs which cut the core between those polarized-light multiplexing and demultiplexing parts, and providing a Faraday rotator and a 45 deg. rotary polarizer in those notchs. CONSTITUTION:The optical fiber consists of the punch fiber which has two polarization maintaining cores 12a and 12b in one clad so that the polarization maintaining planes of both the cores cross each other at right angles, and the punch fiber is drawn at two places to providing the polarized-light demultiplexing and multiplexing parts 14 and 15 where only one specific linear polarized light beam between two mutually orthogonal linear polarized light beams passing through the cores 12a and 12b move to the opposite core at all times. The notchs 16 and 17 which cut at least the cores are formed are formed between those polarized-light demultiplexing and multiplexing parts 14 and 15 at right angles to the axis and the Faraday rotator 18 and 45 deg. rotary polarizer 19 are provided therein. Consequently, handling in manufacture and use is extremely easy and the efficiency of coupling with the optical fiber becomes extremely high.

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