Examination of interior surfaces using glow-discharge illumination
US4102582A · kind A · utility
1Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Nov 9, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/954
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Endoscopic examination of the interior of a hollow structure through a light pipe that is inserted into the structure, the interior being illuminated by means of a glow discharge that is established with a high voltage applied between the structure wall as one electrode and a second electrode that is inserted into the structure, or establishing the glow with two electrodes inserted into the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.