Mercury-containing metal halide lamp, metal halide pill and preparation method of metal halide pill

A technology of metal halide pellets and metal halide lamps, which is applied in the field of lighting and optoelectronics, can solve the problems of poor color temperature stability of mercury-containing metal halide lamps and corrosion of arc tubes, and achieve good color rendering index, avoid corrosion, and stabilize color temperature

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

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a metal halide pellet containing sodium, thallium, indium, calcium and cerium and its preparation method and a mercury-containing metal ha

Method used

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  • Mercury-containing metal halide lamp, metal halide pill and preparation method of metal halide pill
  • Mercury-containing metal halide lamp, metal halide pill and preparation method of metal halide pill
  • Mercury-containing metal halide lamp, metal halide pill and preparation method of metal halide pill

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preparation example Construction

[0020] Correspondingly, the embodiment of the present invention also provides a method for preparing the metal halide pellets of the mercury-containing metal halide lamp in the above embodiment, the process of the method is as follows figure 1 shown. The method comprises the steps of:

[0021] S01. Preparation of sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide mixture melt: sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide gold halide according to (0.3~0.8):(0.01~0.05):(2.0×10 -3 ~5.0×10 -3 ):(0.1~0.4):(1.0×10 -3 ~6.0×10 -3 ) are mixed, heated to melt in an oxygen-free atmosphere to obtain a melt;

[0022] S02. Spray the molten mixture to cool and solidify into balls: spray the molten liquid prepared in step S01 into an atmosphere protected by a high-purity inert gas, and make liquid beads naturally form after spraying under the protection of the high-purity inert gas Cool in the atmosphere and solidify into b...

Embodiment 1

[0053] A metal halide pellet of a mercury-containing metal halide lamp, comprising sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide, sodium, thallium, indium, calcium and The molar ratio of cerium is 0.3:0.01:2.0×10 -3 :0.1:1.0×10 -3 .

[0054] The preparation method of the metal halide pill of this mercury-containing metal halide lamp is as follows:

[0055] Mix the sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide gold halide contained in the above-mentioned gold halide pellets according to the proportion, form a mixture and place it in a quartz container with a nozzle at 120 ° C Under pre-vacuum treatment for 30 minutes, then slowly heated to 730 ° C to melt the mixture, stirred for 40 minutes, and the molten mixture was ejected from the nozzle at a speed of 40 cm / s. Cool quickly and solidify into balls. Then the obtained product is further removed the trace impurities adsorbed on the surface of the ball under...

Embodiment 2

[0058] A metal halide pellet of a mercury-containing metal halide lamp, comprising sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide, sodium, thallium, indium, calcium and The molar ratio of cerium is 0.8:0.05:5.0×10 -3 :0.4:6.0×10 -3 .

[0059] The preparation method of the metal halide pill of this mercury-containing metal halide lamp is as follows:

[0060] Mix the sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide gold halide contained in the above-mentioned gold halide pellets according to the proportion, form a mixture and place it in a quartz container with a nozzle at 130 ° C Under vacuum for 50 minutes, then slowly heated to 750 ° C to melt the mixture, stirred for 30 minutes, and the molten mixture was ejected from the nozzle at a speed of 20 cm / s. Cool quickly and solidify into balls. Then the obtained product is further removed the trace impurities adsorbed on the surface of the ball under the high vacu...

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Abstract

The invention discloses a metal halide pill of a mercury-containing metal halide lamp, a preparation method of the metal halide pill, and the mercury-containing metal halide lamp. The metal halide pill of the mercury-containing metal halide lamp contains sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide, and a mole ratio of sodium to thallium to indium to calcium to cerium in sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide metal halide is (0.3-0.8):(0.01-0.05):(2.0*10<-3>-5.0*10<-3>):(0.1-0.4):(1.0*10<-3>-6.0*10<-3>). The preparation method of the metal halide pill comprises the steps of preparing a sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide mixture fusion solution, ejecting and cooling the mixture fusion solution, solidifying the mixture fusion solution into a ball, and performing impurity removal and screening on the solidified ball. The mercury-containing metal halide lamp adopts a synergistic effect of sodium iodide, thallium iodide, indium iodide, calcium iodide and cerium iodide, so that the mercury-containing metal halide lamp containing the metal halide pill is stable in color temperature, corrosion to an electric arc tube is effectively avoided, and the mercury-containing metal halide lamp is high in lighting effect, good in color rendering index and color temperature and long in service life.

Description

technical field [0001] The invention belongs to the technical field of lighting and optoelectronics, and in particular relates to a metal halide pellet of a mercury-containing metal halide lamp, a preparation method thereof, and a mercury-containing metal halide lamp. Background technique [0002] Metal halide lamps (referred to as metal halide lamps), as a high-pressure gas discharge light source, have attracted much attention from the market because of their high light efficiency, ideal color rendering index and long life. Its luminescent principle is that under the action of thermionic electrons emitted by the cathode, the mixed vapor of mercury and metal halide produces arc discharge. [0003] Metal halide pellets (metal halides are added in the form of pellets during the preparation of metal halide lamps) are one of the important factors that determine the optical properties of metal halide lamps. Its luminescent sodium-thallium-indium series luminescent metal halide p...

Claims

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Application Information

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IPC IPC(8): H01J61/18H01J9/00
CPCH01J61/12H01J9/00H01J61/125
Inventor 周明杰段永正
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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