Discharge lamp with ignition assisting element
AssigneeOSRAM Gesellschaft
InventorMatthias Morkel
Life of this patent
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Abstract
Disclosed is a discharge lamp, in particular a high pressure discharge lamp, with at least one discharge vessel and at least one ignition assisting element, preferably an ignition assisting wire or an electrically conducting coating of the discharge vessel, which element can be electrically connected to a power feed to the discharge lamp and which extends at least in some sections along the discharge vessel, wherein a device is provided for interrupting the electrical connection between at least one partial section of the ignition assisting element and the power feed in the operating state of the discharge lamp. Additionally disclosed are an ignition assisting device and a method for operating a discharge lamp of this kind.
Claims13
A discharge lamp, in particular a high-pressure discharge lamp, with at least one discharge vessel (2) and at least one auxiliary ignition element (22), preferably an auxiliary ignition wire or an electrically conductive coating of the discharge vessel (2), which can be electrically conductively connected to a power supply line of the discharge lamp (1) and at least sections of which extend along the discharge vessel (2), characterized by an apparatus (24) for interrupting the electrical connection between at least one subsection (26) of the auxiliary ignition element (22) and the power supply line in the operating state of the discharge lamp (1).
A method for operating a discharge lamp (1), in particular a high-pressure discharge lamp, with at least one discharge vessel (2) and at least one auxiliary ignition element (22), in particular an auxiliary ignition wire or an electrically conductive coating of the discharge vessel (2), which can be electrically conductively connected to a power supply line of the discharge lamp (1) and at least sections of which extend along the discharge vessel (2), having the following steps:
- a) connection of the auxiliary ignition element (22) to the power supply line by means of an apparatus (24) for interrupting the electrical connection;
- b) ignition of the discharge in the discharge lamp (1), and
- c) interruption of the electrical connection between at least one subsection (26) of the auxiliary ignition element (22) and the power supply line by means of the interrupter apparatus (24) in the operating state of the discharge lamp (1).
An auxiliary ignition device for a discharge lamp (1), in particular for a high-pressure discharge lamp, with an auxiliary ignition element (22), in particular an auxiliary ignition wire or an electrically conductive coating, at least sections of which extend along a discharge vessel (2), an apparatus (24) for interrupting the electrical connection between at least one subsection (26) of the auxiliary ignition element (22) and a power supply line in the operating state of the discharge lamp (1) being provided.
Dependencies are inferred from the claim text.