Device for displaying the core of an optical fiber
US5253034A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Mar 11, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2551
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for displaying the core (C) of an optical fiber (F) in two directions that are transverse to the fiber (F) includes two light sources illuminating the fiber. Each source emits a beam of light. The beams have different directions D.sub.1 and D.sub.2. The directions lie in a plane that is orthogonal to the longitudinal axis (X) of the fiber (F). An objective lens (L.sub.3, L.sub.4), reception and display components (2, 3) are employed and receive and display images of the fiber (F) produced by the beams. The objective lens is focused in a plane (P) that intercepts the beams from the fiber (F) inside the fiber (F). The angle (.alpha..sub.1, .alpha..sub.2) between either of the directions (D.sub.1, D.sub.2) and the focal axis (Y) of the objective lens (L.sub.3, L.sub.4) is such that the objective lens (L.sub.3, L.sub.4) directly receives the two beams from the fiber (F) with sufficient light intensity to enable the display component to operate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.