| 摘要 |
A discharge lamp assembly according to the present invention is advantageously used as a headlamp of an automotive vehicle. A discharge bulb, a starting circuit for initiating operation of the discharge bulb, and a controller for controlling operation of the discharge bulb are contained in a lamp housing. The lamp housing is composed of a front cover including a front lens, and a back cover. The back cover having a heat-dissipating structure such as an open window is detachably connected to the front cover. The controller unit is mounted directly on a fringe portion of the open window so that heat in the controller unit is effectively dissipated. A heat-dissipating plate, to which the controller unit is connected, and heat-dissipating fins may be additionally disposed at the window to further improve heat dissipation from the controller unit.
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