Title:
OPTICAL FIBER WOUND AROUND BOBBIN
Document Type and Number:
WIPO Patent Application WO/2019/059087
Kind Code:
A1
Abstract:
An optical fiber wound around a bobbin comprises: a bobbin having a main winding body 1 and a main winding flange 2 provided at the end of the main winding body 1 in the axial direction; and an optical fiber with an outer diameter between 185 µm and 260 µm which is wound around the main winding body 1 to form a winding layer. The optical fiber wound around the bobbin satisfies 1.73D ≤ P ≤ 2.0D and ∆X2 ≤ P, where ∆X2 represents an axially inward deformation of an external contact part 2f of the main winding flange 2 when changing the temperature from 20°C to −35°C, and P represents the average pitch of winding of the optical fiber around the main winding body 1 in the axial direction.
Inventors:
AKAMATSU TSUYOSHI (JP)
Application Number:
PCT/JP2018/033984
Publication Date:
March 28, 2019
Filing Date:
September 13, 2018
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
G02B6/46
Foreign References:
| US4182500A | 1980-01-08 | |||
| JPH04352107A | 1992-12-07 | |||
| JP2004338838A | 2004-12-02 | |||
| JPH0710380A | 1995-01-13 | |||
| JPS542452B1 | 1979-02-07 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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