Mount for lamp and lamp seal structure employing the mount
US6600266B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/368
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
It is an object of the present invention to assuredly prevent occurrence of minute cracks in a seal portion of a lamp for improvement of the pressure resistance and service life of the lamp. To achieve the object, there is provided a seal structure of a lamp including: (a) a lamp envelope having a light emitting tube and a seal portion; (b) a metal foil embedded in the seal portion of the lamp envelope; (c) a light emitting element attached to one of opposite ends of the metal foil and disposed in the light emitting tube; and (d) an outer lead rod attached to the other end of the metal foil and led out of the seal portion, the seal structure comprising a separable layer interposed between the seal portion and a portion of the light emitting element embedded in the seal portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.