| 摘要 |
A compact selfballasted fluorescent lamp includes a fluorescent arc tube forming a crooked discharge path, a housing comprised of a first end portion open to be fit thereon with a bulb-base, a middle portion and a second end portion open to be mounted thereto with the fluorescent arc tube, a lighting circuit module accommodated in the housing, the unit being provided with a circuit board and two or more circuit components mounted on the circuit board for constituting a lighting circuit for lighting the fluorescent arc tube, and a thermal conductor having a thermal conductivity of 0.1 W/(m.K) or more, which is filled in the housing, extending upwards from a components mounting side of the circuit board of the lighting circuit module and contacting with the inner wall of the housing lying on the side of the first end portion of the housing, thereby covering at least one of the circuit components of the lighting circuit.
|
