R lamp having an improved dome portion for increasing the useful light output
US4656386A · kind A · utility
9Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reflector lamp (R) having an improved dome section that increases the useful light output of the lamp is disclosed. The dome section has at least three portions each with a predetermined radius. The overall dimensions of the dome section are decreased relative to that of prior art lamps without suffering a loss to the structural integrity of the lamp itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.