UV-enhancer arrangement for use in a high-pressure gas discharge lamp
AssigneeKoninklijke Philips N.V.
InventorFranciscus Leonardus Gerardus Vries
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Abstract
A high pressure gas discharge lamp comprising a discharge vessel, an outer envelope enclosing said discharge vessel with an interspace between the outer envelope and the discharge vessel. A UV-enhancer having a wall enclosing an electrode space with a filling gas and an internal electrode extending from the electrode space through the wall to the interspace. Said UV-enhancer is arranged in said interspace between the outer envelope and the discharge vessel, said wall of the UV-enhancer being made of ceramic material and contains said filling gas. The electrode is directly sealed into the wall.
Claims8
A high pressure gas discharge lamp comprising a discharge vessel, an outer envelope enclosing said discharge vessel with an interspace between the outer envelope and the discharge vessel,
- a UV-enhancer having a wall enclosing an enhancer electrode space with a filling gas and an enhancer electrode extending from the enhancer electrode space through the wall to the interspace, said UV-enhancer being arranged in said interspace between the outer envelope and the discharge vessel, said wall of the UV-enhancer being made of ceramic material,
- whereby the enhancer electrode is directly sintered onto the wall of the UV enhancer characterized in that the enhancer electrode is a closed metal tube.
Dependencies are inferred from the claim text.