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Metal halide filling composition, and corresponding lamp

A metal halide lamp, halide technology, applied in the direction of discharge lamps, gas discharge lamps, gas discharge lamp parts, etc., can solve the problems of poor color reproduction index, loss of bright white color, etc., and achieve high luminescence Efficiency, maintaining the effect of color reproduction

Inactive Publication Date: 2007-05-16
PATENT TREUHAND GESELLSCHAFT FUR ELECTRIC GLUEHLAMPEN MBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lamp loses the bright color of white and the color rendering index deteriorates

Method used

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  • Metal halide filling composition, and corresponding lamp
  • Metal halide filling composition, and corresponding lamp
  • Metal halide filling composition, and corresponding lamp

Examples

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Embodiment Construction

[0023] An embodiment of a 250 W metal halide lamp 1 is depicted by way of example in FIG. 2 . It consists of a quartz glass discharge vessel 2 extruded on both sides, the device is surrounded by an evacuated cylindrical hard glass envelope 3, one side of which is inserted into the base. One end of the tube shell 3 has a dome 17 , and the opposite end includes a screw seat 12 . The bracket 6 axially fixes the discharge tube 2 inside the bulb 3 . The bracket 6 consists of two lead-in wires, one of which is connected to the electric lead-in wire 8 of the discharge tube 2 near the base. Another lead-in leads via a solid metallic support wire extending along the discharge vessel 2 to an electrical lead remote from the base. Furthermore, the lamp has a guide element 15 (formed in stamped sheet metal) near the base end and a partially circular support 13 near the dome 17 . The ends 4 , 5 of the discharge vessel 2 have a warm reflective coating 16 . In addition, the getter materia...

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PUM

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Abstract

A metal halide fill for forming an ionizable fill comprising at least one inert gas, mercury, and at least one halogen, the fill additionally comprising the following constituents: Mn halide and V halide. This fill may in particular be present in the discharge vessel of a metal halide lamp.

Description

technical field [0001] The invention relates to a metal halide filling and a corresponding lamp for a high-pressure discharge lamp. The invention relates in particular to a filling for lamps with a warm white or neutral white bright colour. The invention also relates to a corresponding lamp filled therewith. Background technique [0002] To achieve warm white or neutral white bright colors, metal halide lamps contain at least sodium. For example, in US-A 3575 630 a lamp is described which contains a metal halide filling with the elements sodium, thallium and zirconium and has a warm white bright colour. A further example is the lamp described in EP-A 883 160 . The lamp comprises a metal halide fill with the elements sodium, scandium and other constituent elements such as manganese. This light is dimmable. [0003] Metal halide discharge lamps with glass and sodium-containing filling discharge vessels suffer from the well-known disadvantage of nanoscattering by the disch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/20H01J61/12H01J17/20H01J61/18H01J61/34
CPCH01J61/125H01J61/18
Inventor H·埃泽曼
Owner PATENT TREUHAND GESELLSCHAFT FUR ELECTRIC GLUEHLAMPEN MBH