Automobile headlamp using gas discharge lamp has reference hook and/or reference opening of bayonet coupling ensuring assembly of ignition device and socket for gas discharge lamp in correct relative position

摘要

The headlamp has a bayonet coupling (4), provided with at least 2 hooks fitting into corresponding openings, between an ignition device (1) and a socket (2) for a gas discharge lamp, a reference hook and/or a reference opening ensuring that the ignition device and the socket can only be coupled together in a defined relative position.