Plastic optical fibers and process for the production thereof
US5111526A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A plastic optical fiber comprising a core polymer having a refractive index of n.sub.1, which comprises a polymer of .alpha., .beta.-unsaturated carboxylic acid fluoroalkylester represented by the general formula [I] as the main monomer, and a clad copolymer having a refractive index of n.sub.2, which comprises perfluoro(2,2-dimethyl-1,3-dioxole) as the main monomer, and which satisfies the relationship of (n.sub.1 -n.sub.2 .gtoreq.0.01): ##STR1## wherein X represents CH.sub.3, H, D, F, Cl, or CF.sub.3, Y represents H or D, and Rf represents a fluoroalkyl group having a linear or branched chain. The optical fiber is prepared by a melt-extrusion method. The optical fiber has excellent light transmitting properties, and it is suitable as an optical fiber for long distance light communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.