| 摘要 |
A self-ballasted fluorescent lamp that comprises a housing formed to contain a ballast. The housing has a top surface with openings leading from the exterior of the housing to the interior. The openings can be in the form of raised bosses having upstanding walls. A restricted portion, which can take the form of a flange, is formed with the opening and a safe end-of-life enabling device is positioned in the opening and in contact with the restricted portion. The safe end-of--life device is tubular, has low thermal conductivity and in preferred forms of the invention is a glass such as quartz or a ceramic such as aluminum oxide. The ends of a fluorescent lamp penetrate the tubular end-of-life device and extend into the interior of the housing for suitable connection to an enclosed electronic ballast. A retainer is positioned opposite the restricted portion for maintaining the end-of-life device within the opening. The retainer is a typical compact fluorescent cement that is used to fix the lamp to the housing. Alternatively, the retainer can be an adhesive silicone or a threaded washer.
|
