High intensity discharge lamps, arc tubes, and methods of manufacture
US7572163B2 · kind B2 · utility
0Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application discloses high intensity discharge (“HID”) lamps, arc tubes, and methods of manufacture. The application relates to HID lamps, arc tubes, and methods of manufacture wherein a precise amount of fill gas may be contained in the light-emitting chamber of the arc tube so that the pressure of the fill gas contained in the arc tube at substantially room temperature may be precisely controlled at pressures greater than about one-half atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.