METHOD FOR MANUFACTURING PRIMARY COATED OPTICAL FIBER
PROBLEM TO BE SOLVED: To provide a method for manufacturing a primary coated optical fiber excellent in side pressure properties while controlling the variation of the coating diameter to ≤0.5 μm even in a high speed spinning at a linear velocity of >2,000 m/min. SOLUTION: A melt-spun primary opt...
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| creator | FUJIMAKI MUNEHISA ONODERA MIGAKU |
| description | PROBLEM TO BE SOLVED: To provide a method for manufacturing a primary coated optical fiber excellent in side pressure properties while controlling the variation of the coating diameter to ≤0.5 μm even in a high speed spinning at a linear velocity of >2,000 m/min. SOLUTION: A melt-spun primary optical fiber is coated with a resin to obtain the primary coated optical fiber. When the primary coated optical fiber is coiled via a turn pulley 21, the vibration of the turn pulley 21 is reduced to be ≤13 μm. Further, the eccentricity of the turn pulley 21 is reduced to be c×r2≤4×104äwhere c(μm) is the eccentricity and r(rpm) is the number of revolution}. COPYRIGHT: (C)2004,JPO&NCIPI |
| format | Patent |
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SOLUTION: A melt-spun primary optical fiber is coated with a resin to obtain the primary coated optical fiber. When the primary coated optical fiber is coiled via a turn pulley 21, the vibration of the turn pulley 21 is reduced to be ≤13 μm. Further, the eccentricity of the turn pulley 21 is reduced to be c×r2≤4×104äwhere c(μm) is the eccentricity and r(rpm) is the number of revolution}. 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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | METHOD FOR MANUFACTURING PRIMARY COATED OPTICAL FIBER |
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