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Metal halide pellet of quartz metal halide lamp and preparation method for metal halide pellet as well as mercury-free quartz metal halide lamp

A technology of metal halide pellets and metal halide lamps, which is applied in the manufacture of discharge tubes/lamps, components of gas discharge lamps, cold cathodes, etc., can solve the problems of tube wall blackening and reduce the luminous flux maintenance rate of lamp tubes, etc. Achieve the effect of good sphericity, excellent photoelectric and color comprehensive parameters, and eliminate the harm of mercury

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

But in fact, there are still very few tungsten atoms that reach the tube wall, before combining with the halogen atoms, they are directly deposited on the tube wall. The longer the time, the more tungsten atoms are deposited, which leads to the blackening of the tube wall and reduces the lamp life. Luminous flux maintenance rate of the tube

Method used

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  • Metal halide pellet of quartz metal halide lamp and preparation method for metal halide pellet as well as mercury-free quartz metal halide lamp
  • Metal halide pellet of quartz metal halide lamp and preparation method for metal halide pellet as well as mercury-free quartz metal halide lamp

Examples

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Effect test

Embodiment 1

[0039]A metal halide pellet of a quartz metal halide lamp, the material of which is luminescent metal halide; the material of the luminescent metal halide is a composition of sodium iodide, scandium iodide and calcium iodide; The mass ratio of sodium, scandium iodide and calcium iodide is 4:0.6:1.

[0040] The preparation method of described golden halide pill, comprises the following steps:

[0041] (1) The above-mentioned luminescent metal halides were weighed in proportion, mixed uniformly to form a mixture, and placed in a quartz container with a nozzle; the mixture was pre-vacuumized at 110°C for 40 minutes, and the vacuum degree was 0.01Mpa;

[0042] (2) Under the condition of a vacuum degree 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, and spray the molten mixture from the nozzle, and the molten beads are in high-purity Rapid cooling and solidification into balls during the argon mass transfe...

Embodiment 2

[0046] A metal halide pill of a quartz metal halide lamp, the material is a complex formed by luminescent metal halide and buffer metal halide; the material of the luminescent metal halide is a combination of sodium iodide, scandium iodide and calcium iodide The material of the buffer metal halide is a mixture of antimony iodide and thulium iodide; the mass ratio of sodium iodide, scandium iodide, calcium iodide, antimony iodide and thulium iodide in the metal halide pellets is 4:0.6:1:2:1.

[0047] The preparation method of described golden halide pill, comprises the following steps:

[0048] (1) The above-mentioned luminescent metal halide and buffer metal halide were weighed in proportion, mixed uniformly to form a mixture, and placed in a quartz container with a nozzle; the mixture was pre-vacuumized at 120°C for 50 minutes, and the vacuum degree was 0.01Mpa;

[0049] (2) Under the condition of a vacuum degree of 0.01Mpa, slowly heat the mixture at a heating rate of 2°C / ...

Embodiment 3

[0053] A metal halide pill of a quartz metal halide lamp, the material is a complex formed by luminescent metal halide and buffer metal halide; the material of the luminescent metal halide is a combination of sodium iodide, scandium iodide and calcium iodide The material of the buffer metal halide is a mixture of antimony iodide and thulium iodide; the mass ratio of sodium iodide, scandium iodide, calcium iodide, antimony iodide and thulium iodide in the metal halide pellets is 8:1.5:1.8:5:2.5.

[0054] The preparation method of described golden halide pill, comprises the following steps:

[0055] (1) The above-mentioned luminescent metal halide and buffer metal halide were weighed in proportion, mixed uniformly to form a mixture, and placed in a quartz container with a nozzle; the mixture was pre-vacuumized at 130°C for 50 minutes, and the vacuum degree was 0.01Mpa;

[0056] (2) Under the condition of a vacuum degree of 0.01Mpa, slowly heat the mixture at a heating rate of ...

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Abstract

The invention provides a metal halide pellet of a quartz metal halide lamp. The metal halide pellet is made from a complex compound formed by luminous metal halide and buffer metal halide; luminous metal halide is made from composition of sodium iodide, scandium iodide and calcium iodide, and buffer metal halide is made from a mixture of antimony iodide and thulium iodide; a mass ratio of sodium iodide, scandium iodide, calcium iodide, antimony iodide and thulium iodide in the metal halide pellet is (4-12):(0.6-2.2):(1-2):(2-5):(1-3). The method provides a preparation method for the metal halide pellet of the quartz metal halide lamp. The invention further discloses a mercury-free quartz metal halide lamp containing the metal halide pellet, and the mercury-free quartz 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 light flux.

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 pellet of a quartz metal halide lamp, a preparation method thereof and a mercury-free quartz metal halide lamp. Background technique [0002] Most of the quartz 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 800°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] When the metal halide lamp is working normally, the metal halide is the main material for luminescence, and the proportion of mercury and rare gases in the visible light spectrum emitted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/12H01J61/30H01J9/00
Inventor 周明杰段永正
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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