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Ceramic halogen lamp

A ceramic metal halide lamp and ceramic technology, applied in the field of ceramic metal halide lamps, can solve the problems of high vapor pressure, long-term accumulation, harm to human health, etc., and achieve the effect of increasing tube pressure, improving light efficiency, and increasing the content of free electrons

Inactive Publication Date: 2014-12-03
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

However, mercury is a harmful substance. Its vapor pressure is high at room temperature. After being inhaled into the human body, it will accumulate in the human body for a long time, affecting the normal operation of various functions of the human body and seriously endangering human health.

Method used

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  • Ceramic halogen lamp
  • Ceramic halogen lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In a 70w mercury-free ceramic metal halide lamp, the volume of the arc tube is 0.28cm 3 , the arc tube contains xenon gas (at room temperature the pressure is 0.27×10 5 Pa), the first metal halide is 36mg / cm 3 , specific components: sodium iodide 60wt% (wt% means mass percentage, the same below), thallium iodide 9wt%, dysprosium iodide 12wt%, thulium iodide 19wt%. The second metal halide is 18mg / cm 3 , wherein the weight ratio of zinc iodide to gallium iodide is 2:1. Zinc is 7.2mg / cm 3 .

[0032] The luminous efficiency (ratio of luminous flux to power) and color temperature of ceramic metal halide lamps are detected by the electric light source fast light color test system. The structure diagram of the electric light source fast light color test system (provided by the optoelectronic laboratory of Fudan University) is as follows figure 2 shown. Among them, SSPD is a linear self-scanning diode array of EG&G Ret icon ~ T C512 in the United States, and the polychr...

Embodiment 2

[0036] The structure of the ceramic metal halide lamp in Example 2 is roughly the same as that in Example 1, the difference is that in Example 2, the first metal halide is 24 mg / cm 3 , wherein sodium iodide is 65wt%, thallium iodide is 5wt%, dysprosium iodide is 5wt%, and thulium iodide is 25wt%. The second metal halide is 5mg / cm 3 , wherein the weight ratio of zinc iodide to gallium iodide is 1:2. Zinc is 18mg / cm 3 .

[0037] The luminous efficiency of the ceramic metal halide lamp is 46Lm / w, the color rendering index is 76, and the relative color temperature is 4340K.

Embodiment 3

[0039] The structure of the ceramic metal halide lamp in Example 3 is roughly the same as that of the ceramic metal halide lamp in Example 1, the difference is that in Example 3, the rare gas is argon, and the first metal halide is 50 mg / cm 3 , wherein sodium iodide is 50wt%, thallium iodide is 10wt%, dysprosium iodide is 15wt%, and thulium iodide is 25wt%. The second metal halide is 20mg / cm 3 , wherein the weight ratio of zinc iodide to gallium iodide is 1:2. Elemental metal zinc is 18mg / cm 3 .

[0040] Using the electric light source rapid light color test system to test, the luminous efficiency of the ceramic metal halide lamp is 44Lm / w, the color rendering index is 75, and the relative color temperature is 4330K.

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Abstract

Provided is a ceramic halogen lamp which comprises a ceramic electric arc tube filled with a rare gas, first metal halides, second metal halides, and zinc. The first metal halides comprise sodium iodide, thallium iodide, dysprosium iodide, and thulium iodide. The second metal halides comprise zinc iodide and gallium iodide. The ceramic halogen lamp is environmentally friendly.

Description

technical field [0001] The invention relates to a 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] When the metal halide lamp is working normally, the metal halide is the main material for luminescence, and the proportion of mercury and rare gases in the visible light spectrum emitted by the metal halide lamp is relatively low. As a buffer gas, mercury can maintain the metal halide lamp to work at a higher tube pressure, which will improve the life and light effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/12
Inventor 周明杰段永正
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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