Title:
METHOD FOR MANUFACTURING PLASTIC OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2020/209373
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a plastic optical fiber suitable to suppress a transmission loss. The present invention provides a method for passing a softened preform 1 through a through-hole 12 from the inside of a container-like member 10 having the shape of a container having the through-hole 12 in the bottom part thereof. The preform 1 includes a resin. At least an inside surface 10i of the container-like member 10 is composed of a material containing, as a main component, glass, a heat-resistant resin or aluminum. In an aspect of the present invention, the preform 1 is softened by being heated while a metal member, in which the container-like member 10 is disposed, and the perform 1 are not in direct contact with each other, is caused to pass through the through-hole 12, then further passes through a cylindrical section 26 of the metal member 20, and is molded in a fiber shape.
Inventors:
KAWAGUCHI YOSHIHIDE (JP)
ARAKI TATSUYA (JP)
SAOMOTO KENJIRO (JP)
NISHIDA KANJI (JP)
ARAKI TATSUYA (JP)
SAOMOTO KENJIRO (JP)
NISHIDA KANJI (JP)
Application Number:
PCT/JP2020/016168
Publication Date:
October 15, 2020
Filing Date:
April 10, 2020
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B6/02
Foreign References:
| JP2014117939A | 2014-06-30 | |||
| JPS63144307A | 1988-06-16 | |||
| US20090065969A1 | 2009-03-12 | |||
| JP2012194310A | 2012-10-11 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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