Title:
APPARATUS AND METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM
Document Type and Number:
Japanese Patent JP2004131353
Kind Code:
A
Abstract:
To stably supply an optical fiber preform 30 free from the eccentricity of a core by making the direction of the central axis C1 of an effective part 21 of a quartz pipe 20 always same in an apparatus and a method for the optical fiber preform by the rod-in-tube method.
A plane A passing on each central axis C1 and C2, when the effective part 21 of the quartz pipe 20 and an upper side dummy pipe 22 make an angle with each other, is made parallel to the inclined direction of the effective part 21 from the vertical direction when a pipe holding part 12 is deflected by the dead weight of the quartz pipe 20.
Inventors:
TAKANO TSUYOSHI
Application Number:
JP2002300006A
Publication Date:
April 30, 2004
Filing Date:
October 15, 2002
Export Citation:
Assignee:
MITSUBISHI CABLE IND LTD
International Classes:
C03B37/012; (IPC1-7): C03B37/012
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
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