| 摘要 |
A long-life incandescent lamp and a socket insert for use with conventional lamps to provide long life. The lamp (10) includes a sealed glass envelope (12), a base (14) fixedly attached to the glass envelope, a center contact (24) fixedly attached to the base and electrically insulated therefrom, a pair of lead wires (16, 18) extending within the envelope, an illuminable filament (20) disposed within the envelope and electrically connected between the lead wires, a diode (22) electrically connected between the center contact and the one lead wire for half-wave rectifying current to the filament, and a resistor (26) for providing a resistive bridge between the base and center contact. The resistor has a resistance substantially in excess of the resistance of the filament, preferably no greater than 27 Kohms. |
