Title:
OPTICAL FIBER PRODUCTION DEVICE AND OPTICAL FIBER PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/024748
Kind Code:
A1
Abstract:
An optical fiber production device according to the present invention includes: a drawing furnace for melting a glass base material and forming a drawn glass fiber; a coating unit for coating a glass fiber with a resin layer to form on optical fiber; and a directly-beneath roller disposed directly beneath the drawing furnace to change the moving direction of the optical fiber; and a capstan for receiving the optical fiber. When the directly-beneath roller is viewed from a direction orthogonal to the rotation axis of the directly-beneath roller, the run surface of the directly-beneath roller on which the optical fiber runs is flat or convex. The width of the run surface is 2 mm to 10 mm.
Inventors:
SUZUKI TOMOYA (JP)
OKAZAKI IWAO (JP)
HASEGAWA TATSURO (JP)
OKAZAKI IWAO (JP)
HASEGAWA TATSURO (JP)
Application Number:
PCT/JP2023/027065
Publication Date:
February 01, 2024
Filing Date:
July 24, 2023
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C03B37/027; G02B6/44
Domestic Patent References:
| WO2010050079A1 | 2010-05-06 |
Foreign References:
| JP2001048568A | 2001-02-20 | |||
| JP2003238185A | 2003-08-27 | |||
| JP2014133673A | 2014-07-24 | |||
| JP2000159534A | 2000-06-13 | |||
| JPH09243833A | 1997-09-19 | |||
| JPH06171970A | 1994-06-21 | |||
| JP2005289764A | 2005-10-20 |
Attorney, Agent or Firm:
SHIN-EI, P.C. (JP)
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