Metal halide pellet of ceramic metal halide lamp, preparation method for metal halide pellet and mercury-free ceramic metal halide lamp

A technology for ceramic metal halide lamps and metal halide pills is applied in the manufacture of discharge tubes/lamps, parts of gas discharge lamps, discharge lamps, etc. pressure, low ionization energy of sodium atoms, etc., to achieve excellent photoelectric color comprehensive parameters, eliminating the harm of mercury pollution, and good color rendering.

Inactive Publication Date: 2015-05-27
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the first type of metal halide, sodium iodide is used as a commonly used substance with a high content because it can achieve high light efficiency; but the ionization energy of sodium atoms is low, which will reduce the tube pressure of the meta

Method used

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  • Metal halide pellet of ceramic metal halide lamp, preparation method for metal halide pellet and mercury-free ceramic metal halide lamp
  • Metal halide pellet of ceramic metal halide lamp, preparation method for metal halide pellet and mercury-free ceramic metal halide lamp

Examples

Experimental program
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Example Embodiment

[0043] Example 1

[0044] A metal halide pill for a ceramic metal halide lamp, the material is a complex formed by a first metal halide and a second metal halide zinc iodide; the mass ratio of the first metal halide to the second metal halide is 1:1; the mass fractions of thulium iodide, indium iodide, lithium iodide, and thallium iodide in the first metal halide are 55%, 1%, 5%, and 39% respectively.

[0045] The preparation method of the metal halide pellets includes the following steps:

[0046] (1) The above-mentioned first metal halide and second metal halide are weighed in proportion and mixed uniformly to form a mixture, which is placed in a quartz container with a nozzle; the mixture is pre-vacuum treated at 110°C for 60 minutes, The degree is 0.01Mpa;

[0047] (2) Under the condition of a vacuum of 0.01Mpa, slowly heat the mixture at a heating rate of 1°C / min until it melts, and then continue to stir for 20 minutes to spray the molten mixture from the nozzle. The pure argon...

Example Embodiment

[0050] Example 2

[0051] A metal halide pill for a ceramic metal halide lamp, the material is a complex formed by a first metal halide and a second metal halide zinc iodide; the mass ratio of the first metal halide to the second metal halide is 2:1; The mass fractions of thulium iodide, indium iodide, lithium iodide and thallium iodide in the first metal halide are 70%, 3%, 7%, and 20% respectively. The preparation method of the metal halide pellets includes the following steps:

[0052] (1) The above-mentioned first metal halide and second metal halide are weighed in proportion and mixed uniformly to form a mixture, which is placed in a quartz container with a nozzle; the mixture is subjected to pre-vacuum treatment at 130°C for 50 minutes. The degree is 0.01Mpa;

[0053] (2) Under the condition of a vacuum of 0.01Mpa, slowly heat the mixture to melt at a heating rate of 2°C / min, and then continue to stir for 30 minutes. The molten mixture is ejected from the nozzle. The pure ar...

Example Embodiment

[0056] Example 3

[0057] A metal halide pill for a ceramic metal halide lamp, the material is a complex formed by a first metal halide and a second metal halide zinc iodide; the mass ratio of the first metal halide to the second metal halide is 10:1; the mass fractions of thulium iodide, indium iodide, lithium iodide, and thallium iodide in the first metal halide are 83%, 4%, 10%, and 3% respectively. The preparation method of the metal halide pellets includes the following steps:

[0058] (1) The first metal halide and the second metal halide are weighed in proportion and mixed uniformly to form a mixture, which is placed in a quartz container with a nozzle; the mixture is pre-vacuum treated at 150°C for 40 minutes, The degree is 0.01Mpa;

[0059] (2) Under the condition of a vacuum of 0.01Mpa, slowly heat the mixture to melt at a heating rate of 3°C / min, and then continue to stir for 50 minutes. The molten mixture is ejected from the nozzle. The pure argon is rapidly cooled and...

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Abstract

The invention provides a metal halide pellet of a ceramic metal halide lamp. The metal halide pellet is made from a complex compound formed by first metal halide and second metal halide; first metal halide is made from composition of thulium iodide, indium iodide, lithium iodide and thallium iodide, and second metal halide is made from zinc iodide; the mass percentages of thulium iodide, indium iodide and lithium iodide in first metal halide are 55-83%, 1-4% and 5-10% respectively, and a mass ratio of first metal halide to second metal halide is (1-10):1. The method provides a preparation method for the metal halide pellet of the ceramic metal halide lamp, and the prepared metal halide pellet has the moisture content lower than 1.2 ppm and is good in sphericity and stable in quality. The invention further discloses a mercury-free ceramic metal halide lamp containing the metal halide pellet, and the mercury-free ceramic metal halide lamp not only eliminates harm of mercury pollution but also has the advantages of high light efficiency, high color temperature, good color rendering property and stable working.

Description

technical field [0001] The invention belongs to the field of electric light sources of metal halide lamps, and in particular relates to a metal halide pill of a ceramic metal halide lamp, a preparation method thereof, and a mercury-free ceramic metal halide lamp. Background technique [0002] Most of the ceramic metal halide lamps currently on the market contain rare gases, metal halides and mercury. The rare gas is generally argon or xenon, and its function is to ensure that the metal halide lamp can be started at a lower voltage. The formed arc will heat the temperature of the arc tube wall to above 1000°C, which will promote the rapid evaporation of mercury and metal halide condensed on the tube wall, so that the metal halide lamp enters a stable high-pressure gas discharge stage. [0003] Metal halide is the main material for the light emission of metal halide lamps, and the proportion of mercury and rare gases in the visible light spectrum emitted by metal halide lamps...

Claims

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Application Information

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IPC IPC(8): H01J61/12H01J9/00
CPCH01J61/125H01J9/00
Inventor 周明杰段永正
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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