Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MANUFACTURING METHOD FOR OPTICAL FIBER AND MANUFACTURING UNIT
Document Type and Number:
Japanese Patent JP2005281090
Kind Code:
A
Abstract:

To provide a glass fiber reduced in light scattering loss by fully promoting structural relaxation of the glass.

In the subject manufacturing method for an optical fiber, an optical fiber preform 16 is heated and drawn in a wire drawing furnace 12, and the drawn optical fiber 11 is kept at a specified annealing temperature in an annealing furnace 15 located under the furnace 12, the optical fiber 11 at the inlet of the annealing furnace 15 is cooled to make the fiber temperature nearly the same as the annealing temperature of the annealing furnace 15.


Inventors:
IKUSHIMA AKIRA
SAITO KAZUYA
KAKITSUDA HIROSHI
SEKIYA EDSON HARUHIKO
HATTORI TAKASHI
Application Number:
JP2004000099650
Publication Date:
October 13, 2005
Filing Date:
March 30, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA GAKUEN
HITACHI CABLE
International Classes:
G02B6/00; C03B37/027; (IPC1-7): C03B37/027; G02B6/00
Domestic Patent References:
JP2004338972A2004-12-02
JP2001192230A2001-07-17
Attorney, Agent or Firm:
絹谷 信雄