Process for producing hard plastic clad optical fiber with improved ultraviolet transmission
US5203896A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1992 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Apr 2, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C25/105
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for producing hard clad optical fibers with improved ultraviolet transmission which includes drawing an optical fiber core while simultaneously coating the core with a photoinitiator-free, active energy ray curable composition and then introducing the coated core to a high energy ionizing radiation ray source so as to minimize exposure of the core to the ionizing radiation. The energy is less than 800 keV and preferably less than 200 keV. In one preferred embodiment, the energy is aimed at the coated core so as to pass therethrough at an angle of 45.degree. or less. The resulting product from the process is also included in the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.