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Metal halide lamp electrode and ceramic metal halide lamp

A technology of ceramic metal halide lamps and metal halide lamps, applied in circuits, discharge lamps, electrical components, etc., can solve problems such as radioactive pollution and poor light efficiency, and achieve the effects of long service life, high luminous efficiency, and high light efficiency

Inactive Publication Date: 2015-03-25
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 in the prior art, to provide a thorium-free metal halide lamp electrode and a medium-power ceramic metal halide lamp, aiming to solve the problems caused by the existing ceramic metal halide lamps using thorium dioxide as the emission material. There are technical problems of radioactive pollution and relatively poor light efficiency in production and use

Method used

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  • Metal halide lamp electrode and ceramic metal halide lamp
  • Metal halide lamp electrode and ceramic metal halide lamp
  • Metal halide lamp electrode and ceramic metal halide lamp

Examples

Experimental program
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Effect test

Embodiment 1

[0052] A metal halide lamp electrode and a ceramic metal halide lamp, the structure of the metal halide lamp electrode is as described above and attached figure 2 As shown, the structure of the ceramic metal halide lamp is as described above and attached image 3 shown. Wherein, the components of the emitting ball 15 in the electrode 1 of the metal halide lamp are: 0.05wt% hafnium oxide, 1% lanthanum oxide, 6% promethium oxide, and the rest is tungsten, with an average diameter of 0.1 mm and an interval between The average distance between the adjacent spiral tungsten filaments 131 of the tungsten filament spiral 13 and the two adjacent emitting balls 15 interposed between the same adjacent spiral tungsten filaments 131 is 0.05 mm.

[0053] The preparation method of this launching ball 15 is as follows:

[0054] Put hafnium oxide, lanthanum oxide, promethium oxide and tungsten metal particle powder with an average particle size range of 3um into the high energy ball mill ac...

Embodiment 2

[0059] A metal halide lamp electrode and a ceramic metal halide lamp, the structure of the metal halide lamp electrode is as described above and attached figure 2 As shown, the structure of the ceramic metal halide lamp is as described above and attached image 3 shown. Among them, the composition of the emitting ball 15 in the electrode 1 of the metal halide lamp: 0.1wt% hafnium oxide, 1wt% lanthanum oxide, 6wt% promethium oxide, the rest is tungsten, its average diameter is 0.2mm, and its interval is set at The average distance between the adjacent spiral tungsten filaments 131 of the tungsten filament spiral 13 and the two adjacent emitting balls 15 interposed between the same adjacent spiral tungsten filaments 131 is 0.07mm.

[0060] The preparation method of the launch ball 15 refers to the preparation method of the launch ball 15 in Example 1, wherein the ball milling process is: the ball milling speed is 180r / min, the ball-to-material ratio is 8:1, the ball filling fa...

Embodiment 3

[0064] A metal halide lamp electrode and a ceramic metal halide lamp, the structure of the metal halide lamp electrode is as described above and attached figure 2 As shown, the structure of the ceramic metal halide lamp is as described above and attached image 3 shown. Among them, the composition of the emitting ball 15 in the electrode 1 of the metal halide lamp: 0.3wt% hafnium oxide, 1wt% lanthanum oxide, 6wt% promethium oxide, the rest is tungsten, its average diameter is 0.3mm, and its interval is set at The average distance between the adjacent spiral tungsten filaments 131 of the tungsten filament spiral 13 and the two adjacent emitting balls 15 interposed between the same adjacent spiral tungsten filaments 131 is 0.1 mm.

[0065]The preparation method of the launch ball 15 refers to the preparation method of the launch ball 15 in Example 1, wherein the ball milling process is: the ball milling speed is 250r / min, the ball-to-material ratio is 15:1, the ball filling fa...

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Abstract

The invention discloses a metal halide lamp electrode and a ceramic metal halide lamp. The metal halide lamp electrode comprises a tungsten electrode stem and a molybdenum plate. One end of the tungsten electrode stem is coaxially and electrically connected with the molybdenum plate, and a tungsten filament spiral device is wound around the outer surface of the other end. A plurality of transmitting balls are arranged between adjacent spiral tungsten filaments of the tungsten filament spiral device in a sandwiched mode, wherein the transmitting balls are spherical or approximately spherical. Each transmitting ball is composed of, by weight, 0.05-0.5% of hafnium oxide, 0.5-3% of lanthanum oxide, 0.05-10% of promethium oxide, and the balance tungsten. The electron work function of the metal halide lamp electrode is low, the working temperature of the electrode is effectively lowered, evaporation and growth of tungsten metal are restrained, the stability of a tungsten prill structure is ensured, the service life is long, and the light-emitting efficiency is high; as metal halide lamp electrodes serve as positive and negative electrodes of the ceramic metal halide lamp, the ceramic metal halide lamp is environmentally friendly, safe, high in luminous efficiency 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 lamp electrode and a ceramic metal halide lamp. Background technique [0002] In recent years, the development of ceramic metal halide lamp technology has become more and more mature, the performance parameters have been greatly improved and far surpassed the traditional quartz metal halide lamp in all aspects, and its use has begun to spread rapidly. Even so, the performance of ceramic metal halide lamps has yet to be perfected. [0003] As an important part of the ceramic metal halide lamp, the electrode structure directly affects the performance of the metal halide lamp. Among them, the commonly used electrode structures for medium-power ceramic metal halide lamps are as follows: figure 1 As shown, it mainly includes a molybdenum sheet (molybdenum foil) 02. The molybdenum sheet 02 has two opposite ends, one end of which is coax...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/04
CPCH01J61/0735H01J61/827
Inventor 周明杰段永正
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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