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AssigneeKoninklijke Philips Electronics N.V.
InventorsHubertus Cornelis Maria Van Den Nieuwenhuizen, Johan Leopold Victorina Hendrix, Petrus Hendrikus Antonis
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A high-pressure discharge lamp (1) having a quartz glass discharge vessel (2) enclosing a discharge space (3) with an ionizable filling, wherein a first electrode (4) and a second electrode (40) are present between which a discharge is maintained during lamp operation, wherein a first seal (5) incorporates a first internal electric conductor (6) which connects the first electrode (4) to a first external electric conductor (7) extending from the seal (5) into the exterior, wherein said first seal (5) further incorporates a gas-filled cavity (10), wherein the internal electric conductor (6) is a foil which extends through the cavity (10), and wherein the foil (6) is provided with at least one hole (11).
A high-pressure discharge lamp having a quartz glass discharge vessel enclosing a discharge space with an ionizable filling, wherein a first electrode and a second electrode are present between which a discharge is maintained during lamp operation, wherein a first seal incorporates a first internal electric conductor which connects the first electrode to a first external electric conductor extending from the seal into the exterior, wherein said first seal further incorporates a gas-filled cavity, wherein the internal electric conductor is a foil which extends through the cavity, characterized in that the foil is provided with at least one hole having a sharp edge spaced from each wall of the cavity.
A method for producing a high-pressure discharge lamp wherein a quartz glass discharge vessel enclosing a discharge space is filled with an ionizable filling, wherein a first electrode and a second electrode are placed such that a discharge can be maintained during lamp operation, wherein a first seal is provided with a first internal electric conductor being a foil which connects the first electrode to a first external electric conductor extending from the seal into the exterior, wherein said first seal is further provided with a gas-filled cavity through which the foil extends, and wherein the foil is provided with at least one hole having a sharp edge spaced from each wall of the cavity.
Dependencies are inferred from the claim text.