Collectively coating die device for manufacturing separable optical fiber ribbon and manufacturing method thereof
US6309567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jun 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4403
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A collectively coating die device (2) is provided for applying coating resin in a lump to coated optical fibers (1) arranged in parallel on one and the same plane so as to form a plurality of optical fiber ribbons (16) at the same time. The collectively coating die device (2) has a nipple portion (9) and a die portion (10), a resin accumulation space (8) formed between the nipple portion (9) and the die portion (10). The nipple portion (9) has two parallel planes and having a plurality of optical fiber passageways (13) shaped like ellipses in section and provided in the direction perpendicular to the planes. The die portion (10) has two parallel planes and has a plurality of optical fiber passageways (14) shaped like ellipses in section and is provided in the direction perpendicular to the planes. Each of the optical fiber passageways (13) of the nipple portion (9) has a tapered portion. Each of the optical fiber passageways (14) of the die portion (10) is constituted by a tapered portion and a straight portion in order from an inlet opening side. The optical fiber passageways (14) of the die portion (10) is disposed so as to correspond to the optical fiber passageways (13) of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.