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High-pressure discharge lamp

A technology of high-pressure discharge lamps and discharge vessels, which is applied to the parts of gas discharge lamps, etc., can solve the problems of high cost, high manufacturing cost and production cost, and achieve good ignition effect

Inactive Publication Date: 2010-09-01
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The disadvantage of this discharge lamp is that the cost of making the auxiliary ignition device in the form of a coil and its installation is very high and thus results in high manufacturing and production costs

Method used

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Examples

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Embodiment Construction

[0030] figure 1 A simplified longitudinal section through an exemplary embodiment of a high-pressure discharge lamp 1 is shown. The high-pressure discharge lamp is designed as a reflector lamp and has a burner 2 which, together with a reflector 4 , is inserted into a ceramic part 6 . The reflector 4 consists, for example, of glass and is provided with a reflective coating. A front disk or a front cover can be inserted into the front flange 8 in the direction of radiation of the lamp. The burner 2 essentially consists of an approximately centrally arranged discharge vessel 10 on which two rods 12 , 14 arranged on the axis of the reflector 4 are arranged. In the discharge vessel 10 there are two electrodes 16 , 18 spaced apart from one another and made of tungsten, for example, which are connected to each other by sealing foils 20 , 22 made of molybdenum fused into the rods 12 , 14 . The power supply lines 24, 26 are contacted. In the exemplary embodiment shown, the supply l...

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Abstract

The invention discloses a high-pressure discharge lamp with a burner which is mounted on a ceramic and has electrodes which are connected to power supply lines, wherein a contact plate is connected to one of these power supply lines and surrounds an auxiliary firing bubble, which is arranged in the burner, and acts as an auxiliary firing device.

Description

technical field [0001] The invention relates to a high-pressure discharge lamp as claimed in claim 1 . Background technique [0002] Such high-pressure discharge lamps, such as those supplied by OSRAM GmbH (Osram GmbH), belong to the lamp family designation and P-VIP as well as halogen-metal-vapor lamps and mercury-ultrahigh-pressure lamps, which are used, for example, in the context of multimedia data projection and video projection. A corresponding lamp design is also described in DE 10 2005 017 505 A1. This known high-pressure discharge lamp has a burner with a discharge vessel on which two diametrically opposite rods are formed. Two electrodes are arranged in the discharge vessel, said electrodes being connected to the supply lines via a sealing foil fused into the rod. In order to improve the ignition characteristics it is possible to provide an auxiliary ignition device which surrounds the part by means of which it is part of a rod wound with an auxiliary ignition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/54
CPCH01J61/54
Inventor 亨宁·雷恩于尔根·穆勒
Owner OSRAM GMBH
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