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

A technology of ceramic metal halide lamps and metal halide pills, which is applied in the manufacture of discharge tubes/lamps, components of gas discharge lamps, cold cathode manufacture, etc. Low, reduce the pressure of metal halide lamps and other issues, to achieve excellent photoelectric color comprehensive parameters, good color rendering, and the effect of eliminating the harm of mercury pollution

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 m...

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

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Effect test

Embodiment 1

[0044] A metal halide pill of a ceramic metal halide lamp is made of 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, samarium iodide and thallium iodide in the first metal halide are respectively 50%, 5% and 45% respectively.

[0045] The preparation method of described golden halide pill, comprises the following steps:

[0046](1) The above-mentioned 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-vacuumized at 110°C for 60 minutes, vacuum The degree is 0.01Mpa;

[0047] (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 bead...

Embodiment 2

[0051] A metal halide pill of a ceramic metal halide lamp is made of 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, samarium iodide and thallium iodide in the first metal halide are 70%, 7%, and 23%, respectively.

[0052] The preparation method of described golden halide pill, comprises the following steps:

[0053] (1) The above-mentioned first metal halide and the second metal halide are weighed in proportion, mixed uniformly to form a mixture, and placed in a quartz container with a nozzle; the mixture is pre-vacuumized at 130°C for 50 minutes, vacuum The degree is 0.01Mpa;

[0054] (2) Under the condition of a vacuum degree of 0.01Mpa, slowly heat the mixture at a heating rate of 2°C / min until it melts, and then continue to stir for 30 minutes, and spray the molten mixture from the nozzle, and the molten beads are in high-puri...

Embodiment 3

[0058] A metal halide pill of a ceramic metal halide lamp is made of 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, samarium iodide and thallium iodide in the first metal halide are respectively 80%, 10% and 10% respectively.

[0059] The preparation method of described golden halide pill, comprises the following steps:

[0060] (1) The above-mentioned first metal halide and the second metal halide are weighed in proportion, mixed uniformly to form a mixture, and placed in a quartz container with a nozzle; the mixture is pre-vacuumized at 150°C for 40 minutes, vacuum The degree is 0.01Mpa;

[0061] (2) Under the condition of a vacuum degree of 0.01Mpa, slowly heat the mixture at a heating rate of 3°C / min until it melts, and then continue to stir for 50 minutes, and spray the molten mixture from the nozzle, and the molten beads are...

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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, samarium iodide and thallium iodide, and second metal halide is made from zinc iodide; thulium iodide accounts for 50-80% by mass of first metal halide, samarium iodide accounts for 5-10% by mass of first metal halide, 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
Inventor 周明杰段永正
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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