Patent ID: 8659225

Claim:
A high intensity discharge lamp comprising an electrically insulating arc tube including a central portion with an interior discharge region and two legs each extending from an end of said central portion along a longitudinal axis, said central portion being a larger size than said legs, wherein each of said legs includes an elongated portion and a larger sized plug portion that is received in an opening at said end of said central portion; electrical conductors extending through each of said legs and spaced apart from each other in said discharge region; a light transmitting envelope enclosing said arc tube; a frame member electrically attached to one of said conductors and extending along but spaced apart from said arc tube; an ignition aid comprising an electrically conductive foil disposed around one of said legs and in electrical contact with said frame member, and an electrically conductive crown in electrical contact with said foil located on or near said central portion, wherein said crown includes a plurality of ribs extending generally outwardly of said foil along the longitudinal axis, wherein said crown is an integral part of said foil and is spaced apart from said plug portion, said foil including a rectangular part that wraps around said one of said legs.