Ceramic xenon discharge lamp filled with lanthanide halide

A technology of lanthanides and halides, which is applied in the field of ceramic xenon discharge lamps, can solve the problems of reducing xenon discharge lamp efficacy and shortening service life, and achieve the effects of maintaining light efficiency, increasing service life and improving light efficiency

Inactive Publication Date: 2018-04-06
余雪强
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Problems solved by technology

[0003] When the xenon lamp is in use, the high temperature in the arc tube vaporizes the tungsten in the electrode, and gradually makes the inner wall of the arc tube black. The electrode corrosion caused by this high temperature is an important aging factor of the xenon discharge lamp, thereby reducing the performance of the xenon discharge lamp. light effect, shorten the service life

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  • Ceramic xenon discharge lamp filled with lanthanide halide

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Embodiment Construction

[0014] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0015] like figure 1 As shown in the figure, the ceramic xenon discharge lamp filled with lanthanide halide of this embodiment includes a sealed casing and a ceramic arc tube arranged in the sealed casing. The ceramic arc tube is provided with a filling space and electrodes. The filling space is filled with fillers, and the fillers are xenon gas, metal halide, and nano-silicon, wherein, by mass fraction, the metal halide is 60% to 70% of the filler, and the metal halide includes: sodium halide 80 %~90%, lanthanide halide 2%~6%, indium halide 0~1%, thallium halide 1%~1.5%, scandium halide 0.5%~1.5%, thorium halide 1%~5%, the electrode Thorium-coated tungsten or tungsten-thorium alloy.

[0016] The added lanthanide halide reduces the temperature of the bulb...

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Abstract

The invention relates to the technical field of xenon discharge lamps and in particular to a ceramic xenon discharge lamp filled with a lanthanide halide. The ceramic xenon discharge lamp comprises asealed housing, a ceramic arc tube disposed in the sealed housing. A filling space and an electrode are arranged inside the ceramic arc tube. The filling space is filled therein with fillers includinga xenon gas, a metal halide, and nano silicon. By weight, the metal halide accounts for 60% to 70% of the fillers, and the metal halide Includes 80% to 90% of sodium halide, 2% to 6% of lanthanide halide, 0 to 1% of indium halide, 1% to 1.5% of thallium halide, 0.5% to 1.5% of scandium halide, and 1% to 5% of thorium halide. The electrode is tungsten or tungsten-bismuth alloy with a thorium-plated surface. The light efficiency of the ceramic xenon discharge lamp can be improved and maintained and the service life of the ceramic xenon discharge lamp is prolonged.

Description

technical field [0001] The invention relates to the technical field of xenon discharge lamps, in particular to a ceramic xenon discharge lamp filled with lanthanide halide. Background technique [0002] Xenon lamp (High intensity Discharge) refers to a high-pressure gas discharge lamp that is filled with an inert gas mixture including xenon and has no filament, referred to as a HID xenon lamp, also known as a metal halide lamp or a xenon lamp. Lamps and outdoor lighting are more and more widely used. The luminous efficacy retention of a xenon discharge lamp is defined as the percentage of light output after N hours of operation to the light output of the lamp after 100 hours of operation. The average luminous efficacy of the xenon discharge lamp remains rated at 95% at 2000 hours, and the end-of-life value of the xenon discharge lamp is 60% of the rated light. [0003] When the xenon lamp is in use, the high temperature in the arc tube causes the tungsten in the electrode ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/04H01J61/12H01J61/16H01J61/30
CPCH01J61/16H01J61/04H01J61/125H01J61/30
Inventor 余雪强
Owner 余雪强
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