Gas discharge indicator device
US4224553A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1978 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Oct 10, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J17/492
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas discharge indicator device including a discharge chamber provided with an anode and a cathode between which is produced a gas discharge producing UV radiation, the discharge chamber being provided with at least one coating of light emitting material which emits visible light in response to the emitted UV radiation, and a light transmitting panel which delimits the discharge chamber at least on one side, and through which the visible light is observable, is provided with material disposed on at least part of the surfaces delimiting the discharge chamber for reflecting UV radiation in order to increase the proportion of emitted UV radiation conducted onto the layer of light emitting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.