Ion-reduction-blackened extra-mural absorbing media adapted for inclusion in image-conducting optical fiber arrays and methods of fabricating the same
US7221835B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jan 20, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C21/007
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods of fabricating extra-mural absorption elements adapted for incorporation in an image-conducting optical fiber array include fabricating various constituent components to be included in an optical fiber bundle from one or more reducible-ion-containing glasses. Various components fabricated from a reducible-ion-containing glass are selectively exposed to a reducing atmosphere such that they are reduction-blackened prior to at least one heating and drawing step relative to the bundle into which they are to be fusedly incorporated. Such “pre-blackened” components function as extra-mural absorption media throughout the length of an image-conducting optical fiber array and alternatively include fiber claddings and substitutional and interstitial extra-mural absorption elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.