Capped high-pressure discharge lamp
AssigneePatent-Truehand-Gesellschaft fur Elektrische Gluelampen mbH
InventorsClaus Regitz, Manfred Wysietzki, Hans-Juergen Keck
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Abstract
Inserted into the cap of a high-pressure discharge lamp is a ceramic fleece hich prevents capping cement (17) from passing into the capillary (18) between the supply lead (9a) and pinch (5).
Claims10
A high-pressure discharge lamp having a discharge vessel and two lamp shanks integrally formed thereon as well as two caps fastened thereto by means of capping cement, each lamp shank having an end face at the outer end, and electrodes in the interior of the discharge vessel being connected to the caps via foils and supply leads which emerge from the end face of the lamp shank, the temperature at the outer end of the lamp shank being at least 300.degree. C., characterized in that a heat-resistant separating material is inserted at least between the region of the end of the lamp shank at which the outer supply lead emerges and the cement.
Dependencies are inferred from the claim text.