Local display technique for fiber optic illuminator/hood system
US4633711A · kind A · utility
13Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1984 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Sep 4, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/2922
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A local display of a fluid level is provided in connection with a fiber optic illuminating system in which a side by side, bi-color light is passed through the fluid in a level gauge having transparent viewing ports. Diverging light passing from the level gauge, refracted in response to the fluid and gauge material, is masked and one color is passed to a focusing lens and a local readout in a plane above or below the focusing lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.