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US 6,191,538 B1Granted
High-pressure discharge lamp having a base at one end and a starting device integrated in the base
AssigneePatent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
InventorsGuenther Hirschmann, Arnulf Rupp
Life of this patent
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Abstract
The invention relates to a high-pressure discharge lamp having a base at one end and whose return conductor (13) is protected with the aid of a bidirectional trigger (D) against high induced voltages of the radio interference suppression reactor (L1) connected to the return conductor (13).
Claims7
A high-pressure discharge lamp having a base at one end and
- the base (10) which has at least two electric terminals (j1, j2;
- j4, j5) for supplying voltage to the high-pressure discharge lamp,
- a discharge vessel (11) which is sealed at both ends and has a sealed end (11a) near the base and a sealed end (11b) remote from the base,
- an ionizable filling, which is enclosed in the discharge vessel (11), for producing a gas discharge,
- at least one radio interference suppression reactor (L1;
- L3) arranged in the base (10),
- at least two gas discharge electrodes (E1, E2) arranged inside the discharge vessel (11;
- 21), at least one first gas discharge electrode (E1) being connected to a first electric terminal (j1;
- j4) of the high-pressure discharge lamp via a return conductor (13) led out from the end (11b) remote from the base and via the at least one radio interference suppression reactor (L1;
- L3), and at least one second gas discharge electrode (E2) being connected to a second electric terminal (j2;
- j5) of the high-pressure discharge lamp by means of a supply lead (15) led out from the end (11a) near the base, and
- a starting device (Z;
- Z′), arranged in the base (10), for starting a gas discharge in the discharge vessel (11),
- wherein the return conductor (13) is connected to the second electric terminal (j2;
- j5) of the high-pressure discharge lamp via a bidirectional trigger (D;
- D′) arranged in the base (10), and the first electric terminal (j1;
- j4) is connected to the second electric terminal (j2;
- j5) of the high-pressure discharge lamp via the at least one radio interference suppression reactor (L1;
- L3) and via the bidirectional trigger (D;
- D′).
17 more elements
Dependencies are inferred from the claim text.