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US 6,605,899 B2Granted
Dielectric barrier discharge lamp
AssigneePatent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
InventorsWerner Berlinghof, Rolf Bäuerle, Gerhard Döll
Life of this patent
Estimating the term…
Abstract
The discharge tube (1) of a dielectric barrier discharge lamp is closed off in a gas-tight manner with the aid of a disk-like closure element (7) but without the use of joining elements. For this purpose, the discharge tube (1) has a constriction (10), which surrounds the edge of the disk-like closure element (7) in the form of a ring.
Claims11
A dielectric barrier discharge lamp (13) having a closed tubular discharge vessel (1, 4, 7) and having elongate electrodes (5a;
- 5b), the discharge vessel (1, 4, 7) comprising a discharge tube (1) which is closed at both its ends, wherein at least one end of the discharge tube (1) is closed off in a gas-tight manner with the aid of a disk-like closure element (7) but without the use of joining means, as a result of the or each closure element (7) being arranged at the respective end (2) within the discharge tube (1) and being joined in a gas-tight manner, over its entire circumference, directly to the inner wall of the discharge tube (1), the discharge tube (1) being constricted over its entire circumference in the region of the join, in such a manner that the constriction (10) surrounds the edge of the disk-like closure element (7) in the form of a ring.
Dependencies are inferred from the claim text.