High-pressure discharge lamp with ignition circuit including halogen incandescent lamp
AssigneeKoninklijke Philips Electronics N.V.
InventorsGerardus Marinus Josephus Franciscus Luijks, Johan Leopold Victorina Hendrix
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Abstract
The invention relates to a high-pressure discharge lamp comprising a discharge vessel which is enclosed, with clearance, by an outer bulb. The outer bulb is closed at one end by a lamp cap. The lamp is provided with an ignition circuit including at least a series arrangement of a glow starter and an ohmic impedance. According to the invention, the ohmic impedance is formed by a halogen incandescent lamp.
Claims4
A high-pressure discharge lamp comprising a discharge vessel which is enclosed, with clearance, by an outer bulb which is provided, at an end, with a lamp cap, which lamp also comprises an ignition circuit including a series arrangement of a glow starter switch and an ohmic impedance, characterized in that said ohmic impedance is formed by a halogen incandescent lamp.
Dependencies are inferred from the claim text.