Ring laser gyroscope with hollow cathode having frusto-ellipsoidal surface
US4969157A · kind A · utility
4Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1982 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Jan 15, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0835
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A cathode (12) for a glow discharge device and comprising a hollow body provided with an opening and having an internal working surface (18) which is substantially frusto-ellipsoidal. The cathode has particular application to a laser gyroscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.