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Power supply device for an electrode of a discharge lamp and discharge lamp, particularly maximum-pressure mercury-vapor discharge lamp

A technology for a power supply device and a discharge lamp, which is applied to the parts of gas discharge lamps, discharge lamps, gas discharge lamps, etc., can solve the problems of foil detachment, burner or discharge space failure, etc., and achieve the effect of reducing the formation of cavities

Inactive Publication Date: 2010-10-27
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Said operating pressure leads to detachment of the foil due to the effect of the resulting gap, which leads to failure of the burner or discharge space in the lamp vessel

Method used

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  • Power supply device for an electrode of a discharge lamp and discharge lamp, particularly maximum-pressure mercury-vapor discharge lamp
  • Power supply device for an electrode of a discharge lamp and discharge lamp, particularly maximum-pressure mercury-vapor discharge lamp
  • Power supply device for an electrode of a discharge lamp and discharge lamp, particularly maximum-pressure mercury-vapor discharge lamp

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Experimental program
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Embodiment Construction

[0037]Identical or functionally identical elements are provided with the same reference symbols in the figures.

[0038] exist figure 1 A schematic sectional view of a discharge lamp I configured as a highest-pressure mercury vapor discharge lamp is shown in . The discharge lamp I can be used in particular in projection systems for image projection.

[0039] The discharge lamp 1 can be designed to be driven with direct current or alternating current.

[0040] The discharge lamp 1 comprises a lamp vessel 7 with a spherical middle part 8 . A neck 9 or 10 respectively extends on both sides of the central part 8 , said necks 9 or 10 being arranged radially opposite one another. The lamp vessel 7 consists of quartz glass. A discharge or combustion space 11 is formed in the inner side of the middle part 8 , into which a cathode 12 formed as a first electrode and an anode 13 formed as a second electrode extend.

[0041] The first power supply device 14 is at least partially fus...

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Abstract

The invention relates to a power supply device for an electrode (12, 13) of a discharge lamp (I), comprising a current carrier film (16, 20) and a current carrier pin (17, 21) connected thereto, the electrode (12, 13) being disposed on said carrier pin, wherein the current carrier pin (16, 20) in the connecting region (22, 23) with the current carrier film (16, 20) has a shape with at least one planar surface (27 to 30, 30a, 35 to 38) extending in the longitudinal direction (A) of the current carrier pin (17, 21). The invention further relates to a power supply device for an electrode (12, 13) of a discharge lamp (I), comprising a current carrier film (16, 20) and a current carrier pin (17, 21) connected thereto, the electrode (16, 20) being disposed on said carrier pin, wherein the current carrier pin (17, 21) in the connecting region (22, 23) with the current carrier film (16, 20) has a shape such that a stepless transition (31 to 34) of the surfaces (27 to 30, 30a, 35 to 38; 25, 26) is formed.

Description

technical field [0001] The invention relates to a power supply device for electrodes of a discharge lamp, which has a current-carrying foil and a current-carrying pin connected to the current-carrying foil, on which the electrode is arranged. Furthermore, the invention relates to a discharge lamp, in particular a highest-pressure mercury vapor discharge lamp with such a power supply. Background technique [0002] In the case of the highest pressure discharge lamps, such as those known by the applicant as projection lamps (P-VIP lamps), it is not possible to fuse the supply rod into the neck of the lamp vessel, since the leak-tightness of the discharge vessel cannot be guaranteed. When the rod is fused, the current-carrying foil is placed on the quartz glass cylinder from the outside and connected to the current-carrying pins leading outwards and the current-carrying pins leading inwards and carrying the electrodes. In the highest pressure discharge lamps of this type, the r...

Claims

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Application Information

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IPC IPC(8): H01J61/36
CPCH01J61/36H01J61/0732H01J61/366
Inventor 安德烈·瑙恩彼得·赫曼马库斯·施坦格
Owner OSRAM GMBH
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