Ceramic metal halide discharge lamp

Ceramic metal halide discharge lamp

The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel which encloses a discharge space, which is provided with an ionizable filling comprising one or more metal halides, in which a first and a second electrode are arranged, and which comprises a first and a se...

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1. Verfasser: HENDRICX JOSEPHUS C. M
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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creator HENDRICX JOSEPHUS C. M
description The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel which encloses a discharge space, which is provided with an ionizable filling comprising one or more metal halides, in which a first and a second electrode are arranged, and which comprises a first and a second closing construction at respective sides of the discharge space, which closing constructions are connected to the discharge vessel and comprise a respective first and second current feed-through, at least the second feed-through comprising a capillary tube having a sintered bond to the second closing construction and an electrically conductive pin located within the capillary tube, leaving a crevice between the capillary tube and the pin, said pin and capillary tube being welded together at an end portion remote from the discharge space, wherein the capillary tube has an outer diameter of at most 1 mm, the crevice is at most 10 m wide and the pin and the capillary tube consist of a metal chosen from Mo, Re, W, Ir, their alloys, optionally also comprising V and/or Ti. The invention further relates to an automotive lamp comprising the lamp of the invention.
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M</creatorcontrib><description>The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel which encloses a discharge space, which is provided with an ionizable filling comprising one or more metal halides, in which a first and a second electrode are arranged, and which comprises a first and a second closing construction at respective sides of the discharge space, which closing constructions are connected to the discharge vessel and comprise a respective first and second current feed-through, at least the second feed-through comprising a capillary tube having a sintered bond to the second closing construction and an electrically conductive pin located within the capillary tube, leaving a crevice between the capillary tube and the pin, said pin and capillary tube being welded together at an end portion remote from the discharge space, wherein the capillary tube has an outer diameter of at most 1 mm, the crevice is at most 10 m wide and the pin and the capillary tube consist of a metal chosen from Mo, Re, W, Ir, their alloys, optionally also comprising V and/or Ti. 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M</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ceramic metal halide discharge lamp</title><date>2007-05-23</date><risdate>2007</risdate><abstract>The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel which encloses a discharge space, which is provided with an ionizable filling comprising one or more metal halides, in which a first and a second electrode are arranged, and which comprises a first and a second closing construction at respective sides of the discharge space, which closing constructions are connected to the discharge vessel and comprise a respective first and second current feed-through, at least the second feed-through comprising a capillary tube having a sintered bond to the second closing construction and an electrically conductive pin located within the capillary tube, leaving a crevice between the capillary tube and the pin, said pin and capillary tube being welded together at an end portion remote from the discharge space, wherein the capillary tube has an outer diameter of at most 1 mm, the crevice is at most 10 m wide and the pin and the capillary tube consist of a metal chosen from Mo, Re, W, Ir, their alloys, optionally also comprising V and/or Ti. 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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
title Ceramic metal halide discharge lamp
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