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1. 发明专利

JPH0783795A AUTOMATIC MEASURING APPARATUS FOR OPTICAL COMPONENT 失效
公开(公告)号：JPH0783795A
公开(公告)日：1995-03-31
申请号：JP18090193
申请日：1993-06-25
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ITO YOSHIHISA , YORINARI HIROSHI , KAWAZOE HIDEYO , SENDA KAZUNORI , HANABUSA HIROAKI
IPC分类号： B65H43/08 , G01M11/00 , H01L21/301 , H01L33/58 , H01L33/00
摘要： PURPOSE:To measure insertion loss and return loss in the same measuring system by providing input and output head parts and receiving the output light of the output head part by a photodetector and providing a reflected light photodetector taking out the reflected light of an optical component through a coupler to receive the same. CONSTITUTION:The output light of a light source 1 is inputted to an optical component 2 through a coupler 8, a coupler 6, the input movable head 21-input fixed head 22-input branch part 25 of an input head part 3 and an input 8-core tape cord 27. The output light from the component 2 is outputted to an optical fiber 47 through output 8-core tape cord 29-output branch part 26-the fixed head 24 of an output head part 4-output movable head 23 to be inputted to an output photodetector 5 to measure light power. The insertion loss of the component 2 is detected on the basis of the measured value. The quantity of the reflected light of the component 2 is also measured by a reflected light photodetector 7 in the same way and return loss is detected on the basis of the measured value. By this constitution, insertion loss and return loss can be measured in the same measuring system.

2. 发明专利

JPH03289608A CONNECTOR HOLDER OF OPTICAL FIBER CABLE 失效
公开(公告)号：JPH03289608A
公开(公告)日：1991-12-19
申请号：JP9287090
申请日：1990-04-06
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ODA TAKAHARU , YAMAGUCHI SHIZUKA , SASAKI KOJI , KAWAZOE HIDEYO
IPC分类号： G02B6/36
摘要： PURPOSE:To stably hold connector plugs by providing means which are arranged on a fixed-side connector holder and a moving-side connector holder respectively and press both the rear end surfaces of the connector plugs and the height position of the optical fibers of an optical fiber cable equally in the horizontal and right-left directions with a spring force. CONSTITUTION:The connector plugs 4 and 3 of an optical connector are stored in storage parts 11c and 12c for the fixed-side connector holder 11 and moving- side connector holder 12 and the pressing members 20 and 25 press both the rear end surfaces 4b and 3b of the connector plugs 4 and 3 and the center, i.e. the height position of optical fibers 2 and 1 equally in the horizontal and right-left directions with the spring force without interfering with a clip pressing the connector plugs 4 and 3 against each other. Consequently, the connector plugs 4 and 3 are pressed against each other without slanting in any direction. Thus, while the connector plugs 4 and 3 are held, the clip which brings the both into press contact is detached. Consequently, the connector plugs 4 and 3 can be held excellently in press contact.

3. 发明专利

JPH02256006A INTEGRAL JUNCTURE OF MULTIPLE OPTICAL FIBER 失效
公开(公告)号：JPH02256006A
公开(公告)日：1990-10-16
申请号：JP14044888
申请日：1988-06-09
申请人： TOKYO ELECTRIC POWER CO , FURUKAWA ELECTRIC CO LTD
发明人： AIZAWA MINORU , MIYAZAKI MITSUO , MIZUTANI MORINOBU , SHIMOYAMA HIRONORI , HIRANO TAKEHISA , KAWAZOE HIDEYO , GOTO AKIO , TANITSU HIROYUKI , YAMAMOTO ICHIRO , TATEGAMI SHIGERU
IPC分类号： G02B6/24
摘要： PURPOSE:To stabilize the butt state of optical fibers by butting and connecting the respective optical fibers in a tubular connector mounted in a connector mounting groove, mounting the optical fiber parts on the outside of the tubular connector in the optical fiber mounting grooves and the fiber parts in the fiber mounting grooves and solidifying these parts by an adhesive agent. CONSTITUTION:The optical fibers 2A, 2B of multiple optical fibers 1A, 1B are inserted into the tubular connector 3 from both sides and are butted and connected therein. The tubular connector 3 is mounted into the connector mounting groove 7 of a base plate 4. The parts of the optical fibers 2A, 2B on the outside of the connector 3 are mounted in the fiber mounting grooves 8A, 8B and the multiple optical fibers 1A, 1B are mounted in the fiber mounting grooves 9A, 9B respectively. The adhesive agent 5 is applied on the substrate 4 so as to embed the connector 3 and the optical fibers 2A, 2B. A cap plate 6 is adhered and fixed thereon. The butt state is stabilized in this way and the generation of the fluctuation in the connection state is substantially obviated. The integral juncture having the high reliability is thus constituted.

4. 发明专利

JPH0239166B2 失效
公开(公告)号：JPH0239166B2
公开(公告)日：1990-09-04
申请号：JP22010482
申请日：1982-12-17
申请人： FURUKAWA ELECTRIC CO LTD
发明人： FUSE KENICHI , TACHIBANA HIDETO , KAWAZOE HIDEYO
IPC分类号： H02G15/23 , G02B6/44

5. 发明专利

JPS63311313A SWITCHING DEVICE FOR OPTICAL CONNECTOR 失效
公开(公告)号：JPS63311313A
公开(公告)日：1988-12-20
申请号：JP14871887
申请日：1987-06-15
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KAMIKO KAZUO , KAWAZOE HIDEYO , YANAGAWA HISAHARU
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To prevent a collision of each end face by fixing an optical connector to a fixing base, abutting the end face of a projection of the optical connector against a projecting part of the fixing base, abutting each end face of the optical connector against each other, and abutting the end face of a detaining projecting piece of the optical connector against the projecting part of the fixing base and fixing it. CONSTITUTION:An optical connector 1 is fixed to one fixing base 4, and an optical connector 2 and 3 are fixed to the other fixing base 5. In this case, an end face 12 of a projecting part 10 of the fixing base 4 and an end face 13 of a projecting part 11 of the fixing base 5 are opposed so as to be positioned on the same straight line Y-Y. In this state, the optical connector 1, and the optical connectors 2, 3 are fixed to the fixing base 4, and the fixing base 5, respectively. In this case, an end face 8a of a projection of the optical connector 1 is abutted against the projecting part 11 of the fixing base 5, an end face 14 is abutted against an end face 15 of the optical connector 1, and an end face 9a of a projection of the optical connector 3 is abutted against the projecting part 10 of the fixing base 4. In such a way, at the time of switching the optical connectors, each optical connector moves smoothly without coming into contact with each other, and can be switched easily and surely.

6. 发明专利

JPS63311219A CONNECTOR SWITCHING METHOD 失效
公开(公告)号：JPS63311219A
公开(公告)日：1988-12-20
申请号：JP14677787
申请日：1987-06-12
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KAMIKO KAZUO , KAWAZOE HIDEYO , MIYAZAWA HIDEHISA
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To shorten the moving time of a connector and to shorten the instantaneous interruption time of a hot-line, by impressing a high voltage on a solenoid at the time of starting movement. CONSTITUTION:Either one of the connectors 1 and 2 connected to each other is moved until a connection state with another connector 3 is set. And the voltage to be impressed on the solenoid 4 is set at high at the time of driving the solenoid, and the voltage to be impressed on the solenoid 4 after the lapse of a certain time after being driven is decreased, and the excitation of the solenoid 4 can be maintained by the low voltage. Thus, since the high voltage is applied on the solenoid 4 at the time of being driven, a moving block 7 is moved rapidly in a direction of arrow head (a) by increasing the attractive force of the solenoid 4, and the movement is stopped when the block is abutted with a stopper 8. In such a way, it is possible to shorten the instantaneous interruption time of light at the time of switching the connector.

7. 发明专利

JPS6252825B2 失效
公开(公告)号：JPS6252825B2
公开(公告)日：1987-11-06
申请号：JP14566980
申请日：1980-10-20
申请人： FURUKAWA ELECTRIC CO LTD
发明人： SHIMANO TAKASHI , KAWAZOE HIDEYO
IPC分类号： G01R31/02

8. 发明专利

JPS62108747A PREPARATION OF POROUS GLASS BASE MATERIAL 失效
公开(公告)号：JPS62108747A
公开(公告)日：1987-05-20
申请号：JP24845385
申请日：1985-11-06
申请人： FURUKAWA ELECTRIC CO LTD
发明人： FURUGUCHI MAKOTO , ORIMO KATSUMI , IINO AKIRA , KAWAZOE HIDEYO
IPC分类号： G02B6/00 , C03B8/04 , C03B37/014 , C03B37/018
摘要： PURPOSE:To enable refractive index to be sufficiently controlled even when a burner for reaction is made large-sized by blowing a cooling gas on at least one hand of both the surface of an accumulation end side of a porous glass base material and the flames in case of preparating the porous glass base material in VAD process. CONSTITUTION:A porous glass base material 4 is prepared by feeding a raw material such as H2, O2, Ar, SiCl4 and GeCl4 to a burner 1 and injecting a sooty fine glass grain prepared by flame hydrolysis reaction toward a target 3 through the burner 1 and accumulating it. On this occasion, a cooling gas is blown on at least one hand of both an accumulation face of the fine glass grain of the base material 4 and the burner flames from an injector 2. Thereby the gradient of temp. distribution of the accumulation end side of the base material can freely be regulated and therefore controllability of refractive index can sufficiently secured even when the burner 1 for reaction is made large-sized by aiming at high-velocity synthesis of the porous glass base material 4.

9. 发明专利

JPS6279165A WIRE STORING DEVICE FOR WIRE TRANSFER BODY 失效
公开(公告)号：JPS6279165A
公开(公告)日：1987-04-11
申请号：JP21679885
申请日：1985-09-30
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KAWAZOE HIDEYO , OOTA TOSHIHIKO , NISHIMOTO MASAYUKI , ORIMO KATSUMI
IPC分类号： B65H75/12 , B65H49/06
摘要： PURPOSE:To increase the diameter of bend of a wire rod for preventing the wire rod from the degradation of property and disconnection by providing a winding-free portion around which the wire rod is not wound at the collar-free side of a single collared reel. CONSTITUTION:A winding-free portion 7 of a single collared reel 3 is provided at the opposite side end to the collar, i.e. the wire rod unwinding side end 6 side around which multi-layers of the wire rod 4 are wound. Thus, since the wire rod 4 is unwound to be wound around the winding-free portion 7 even in the unwinding side end 6 side, the diameter of bend of the unwound wire rod 4 is enlarged. Namely, frictional resistance is generated between the surface of the winding-free portion 7 and the wire rod 4 so that the diameter of bend of the wire rod 4 is enlarged. As a result the wire rod 4 is prevented from the property degradation and disconnection.

10. 发明专利

JPS61236625A PIPE MATERIAL OF BURNER FOR PRODUCING OPTICAL GLASS 失效
公开(公告)号：JPS61236625A
公开(公告)日：1986-10-21
申请号：JP7613585
申请日：1985-04-10
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KAWAZOE HIDEYO
IPC分类号： C03B37/018 , C03B8/04 , C03B37/014
摘要： PURPOSE:To attain the improvement of the working precision of a burner, the assembly strength and the controllability of the burner by connecting both a metallic long pipe for a base end part and a heat resistant short pipe for a tip via a fitting part. CONSTITUTION:The long pipes 15-18 are formed with stainless steel excellent in the heat resistance, the workability and the corrosion resistance and the short pipes 19-22 are formed with ceramics high in the heat resistance and the corrosion resistance. The opposite fitting parts 23-26, 27-30 are formed in the inside and outside peripheral faces of the connection ends of the long pipes 15-18 and the short pipes 19-22 and both the long pipe 15-18 and the short pipes 19-22 are mutually contacted by fitting and fixing these reciprocally. Preferably the fitting faces 35-37 having the broad breadth are formed in the inside peripheries of the base end parts of the long pipes 16-18 and closely fitted to the outside peripheral faces of the pipes of the insides thereof. When presetting properly a number of the pipe material of this structure to be used, a burner having the multiplied pipe structure for producing optical glass can be produced.

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