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Direct current supply metal halide lamp

A technology of metal halide lamps and metal halides, applied in the direction of discharge lamps, gas discharge lamps, parts of gas discharge lamps, etc., can solve problems such as jittering light effect, arc flicker of DC metal halide lamps, etc.

Active Publication Date: 2017-02-22
JIAXING GUANGTAI LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention adds an appropriate amount of zinc iodide to metal halides, which solves the problems of arc flickering and jittering of DC metal halide lamps and low light efficiency

Method used

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  • Direct current supply metal halide lamp
  • Direct current supply metal halide lamp
  • Direct current supply metal halide lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In a DC 35W quartz xenon metal halide lamp, the volume of the arc tube is 0.035mL; the electrode anode diameter is 0.32mm tungsten rod, the cathode diameter is 0.25mm tungsten rod; the distance between electrodes is 4.0mm; -5 Pa; the concentration of 0.72 mg of mercury metal is 20.1 mg / mL; the total concentration of metal halides is 9.4 mg / mL; the typical component sodium is 55wt% (wt% means the mass percentage content is the same below); the typical scandium is 25.5wt%; Typical thallium 1.5wt%; typical zinc 18wt%. A total of five light bulbs have a switch cycle of: 45min on, 15s off, 5min on, 10min off. After 15 aging cycles, use a constant power DC output 34W ballast to ignite horizontally and test five sets of data in an integrating sphere to take the average value. The parameters are as follows:

[0026] Luminous flux Φ=2534.9lm; color coordinate x=0.3280y=0.3445; correlated color temperature Tc=5693K; color rendering index: Ra=73.7, tube voltage: U=85.1V; tube cur...

Embodiment 2

[0031] In a DC 35W quartz xenon metal halide lamp, the volume of the arc tube is 0.035mL; the electrode anode diameter is 0.32mm tungsten rod, the cathode diameter is 0.25mm tungsten rod; the distance between electrodes is 4.0mm; -5 Pa; the concentration of 0.78 mg of mercury metal is 22.3 mg / mL; the total concentration of metal halides is 9.4 mg / mL; the typical component sodium is 64wt% (wt% means the mass percentage content is the same below); the typical scandium is 34.5wt%; Typical thallium 1.5wt%; typical zinc 0wt%. A total of five bulbs are switched on and off in the following cycle: 45min on, 15s off, 5min on, 10min off. After 15 aging cycles, the aging method, testing method and test ballast are the same as in Example 1:

[0032] Luminous flux Φ=1746.2lm; color coordinate x=0.2985y=0.3151; correlated color temperature Tc=7532K; color rendering index: Ra=43.9, tube voltage: U=86.5V; tube current: I=0.393A; power: P=34.0 W; light effect: η=51.4lm / W. image 3 It is a ty...

Embodiment 3

[0035] In a DC 35W quartz xenon metal halide lamp, the volume of the arc tube is 0.035mL; the electrode anode diameter is 0.32mm tungsten rod, the cathode diameter is 0.25mm tungsten rod; the distance between electrodes is 4.0mm; -5 Pa; the concentration of 0.65 mg of mercury metal is 18.6 mg / mL; the total concentration of metal halides is 9.4 mg / mL; the typical component sodium is 46.8wt% (wt% means the same as the mass percentage content below); the typical scandium is 21.7wt% ; Typical thallium 1.5wt%; Typical zinc 30wt%. The aging method and test method and the test ballast are the same as in Example 1:

[0036] Luminous flux Φ=1992.6lm; color coordinate x=0.3152y=0.3236; correlated color temperature Tc=6404K; color rendering index: Ra=78.2, tube voltage: U=84.2V; tube current: I=0.40A; power: P=34.0 W; light effect η=58.57lm / W. Figure 4 It is a typical spectral distribution figure during the initial ignition point of Example 3.

[0037] Results: The lamp arc with the ...

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Abstract

The present invention discloses a direct current supply metal halide lamp. The lamp comprises an arc tube which is internally filled with noble gas and metal halide, and the metal halide includes zinc iodide and cesium bromide so as to solve the problem that the direct current supply xenon metal halide lamp has scintillation and the jitter phenomenon with different degrees and is low in luminous efficiency. The direct current supply metal halide lamp is low in the price of the xenon metal halide lamp, stable in quality and wide in the market prospect.

Description

technical field [0001] The invention relates to a metal halide lamp, in particular to a metal halide lamp powered by direct current Background technique [0002] Metal Halide Lamp (Metal Halide Lamp, referred to as metal halide lamp) is a discharge lamp that generates arc discharge and emits light in the mixed vapor of mercury and rare metal halide. 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. Therefore, most of the metal halide lamps currently on the market contain rare gases, metal halides and mercury. [0003] 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. Commonly used rare gases include xenon and argon. Argon can be used as a buffer and protective gas, and the price is rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/12H01J61/16
CPCH01J61/125H01J61/16
Inventor 万海峰刘鹤鸣陈佳朱成杰代雪峰朱东良顾火军王伟忠
Owner JIAXING GUANGTAI LIGHTING
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