Plastic optical fiber cable and method of transmitting signal
US8422844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4436
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A plastic optical fiber cable includes: a bare plastic optical fiber including a core formed of a polymer containing a methyl methacrylate unit, and a clad layer including a layer formed of a specific fluorine-containing olefin resin at least in the outermost layer; and a coating layer around the bare plastic optical fiber, the coating layer including a light-shielding coating layer formed of a specific nylon resin composition, a functional coating layer (C) and a functional coating layer (D) in this order, where one of the functional coating layer (C) and the functional coating layer (D) is formed of a resin composition (I) containing a polybutylene terephthalate resin as a major component or an ethylene-vinyl alcohol copolymer as a major component; the other is formed of a specific nylon resin composition (II); and a ratio of the thickness of the functional coating layer (C) to the thickness of the functional coating layer (D) is set to fall within a specific range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.