Low-pressure mercury discharge lamp comprising an outer bulb
AssigneeKoninklijke Philips Electronics N.V.
InventorsThomas Juestel, Cornelis Reinder Ronda, Hans Nikol
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Abstract
A low-pressure mercury discharge lamp comprising an inner bulb, which forms a gas discharge vessel and the wall of which is made of a material which is transparent to electromagnetic radiation and is coated with a phosphor, and comprising an outer bulb surrounding the inner bulb, the wall of which contains an UV-A phosphor, and comprising means for generating and maintaining a low-pressure mercury gas discharge.
Claims9
A low-pressure mercury gas discharge lamp comprising an inner bulb, which forms a gas discharge vessel and the wall of which is made of a material which is transparent to electromagnetic radiation and is coated with a phosphor, and comprising an outer bulb surrounding and spaced apart from the inner bulb, the wall of which contains an UV-A phosphor, and comprising means for generating and maintaining a low-pressure mercury gas discharge.
Dependencies are inferred from the claim text.