Patent ID: 8125151

Claim:
A high-pressure discharge lamp comprising: a bulb that includes a light emitting part having an electrode pair disposed and a discharge space formed therein, and a first sealing part and a second sealing part provided at different ends of the light emitting part; and a proximity conductor formed from a lead wire, a section of the lead wire being wound around an outer circumference of at least one of the first sealing part and a section of the light emitting part to form a wound portion, and a remaining section of the lead wire forming a lead portion that extends from the wound portion across the light emitting part in proximity to or contacting with an outer surface of the light emitting part, to a side of the discharge lamp on which the second sealing part is disposed, wherein the lead portion is electrically connected to the electrode, of the pair, positioned nearer the second sealing part, and the wound portion and the lead portion are without a closed loop and the wound portion has at least a section wound substantially spirally at least 0.5 turns in a range from a 2 nd reference plane to a 3 rd reference plane that are parallel to a 1 st reference plane lying orthogonal to a bulb longitudinal direction and including an end of the discharge space positioned at a base portion of the electrode nearer the first sealing part, the 2 nd reference plane being distant 20 mm from the 1 st reference plane along the first sealing part, and the 3 rd reference plane passing through a tip of the electrode nearer the second sealing part.