High-pressure metal-vapor discharge lamp专利检索-显色指数单位和数量专利检索查询-专利查询网

High-pressure metal-vapor discharge lamp

阅读：338发布：2022-11-27

专利汇可以提供High-pressure metal-vapor discharge lamp专利检索，专利查询，专利分析的服务。并且A high-pressure metal-vapor discharge lamp is formed by enclosing scandium-halide, preferably scandium-iodide (ScI3) in the amount of 1.80 X 10 7 to 9.27 X 10 6 gram mol/cc of confined gas, and at least 3.1 times said halide quantity in atomic ratio of free (metal) scandium, together with some mercury as a buffer gas, inside a translucent alumina tube. Such discharge lamp can maintain a luminous efficiency of over 70 lumen/Watt and a general color-rendering index of over 70 for a period in excess of 6,000 hours, and thus, it is very useful as a general lighting source.，下面是High-pressure metal-vapor discharge lamp专利的具体信息内容。

权利要求

1. In a high-pressure metal-vapor discharge lamp having a bulb made of a translucent alumina tube and enclosing buffer gas, luminous substances and starting rare-gas, the improvement which comprises said luminous substances being a mixture comprised of a scandium halide selected from the group consisting of scandium iodide, scandium bromide and scandium chloride in the amount of 1.80 X 10 7 to 9.27 X 10 6 gram molecules per 1 cubic centimeter of the inside volume of the bulb, and free scandium in the amount of at least 3.1 times said amount of scandium haliDe in atomic ratio.

2. A discharge lamp of claim 1, wherein the scandium halide is scandium iodide.

3. A discharge lamp of claim 1, wherein the scandium halide is scandium bromide.

4. A discharge lamp of claim 1, wherein the scandium halide is scandium chloride.

5. A discharge lamp as recited in claim 1 wherein the specific proportions of the amounts are 5.4 X 10 7 to 4.6 X 10 6 gram molecules per cubic centimeter of the inner volume of the bulb for scandium halide and at least 4.2 times said amount of scandium halide in atomic ratio for free metal-scandium.

6. A high-pressure metal-vapor discharge lamp having a bulb of translucent alumina tube enclosing buffer gas, luminous substances and starting rare-gas, said luminous substances comprising the following components: scandium halide in the amount of 1.80 X 10 7 to 9.27 X 10 6 gram molecules per cubic centimeter of the inner volume of the bulb; free metal-scandium in the amount of at least 3.1 times said amount of scandium halide in atomic ratio; and an appropriate amount of halide of at least one element selected from the group consisting of alkali-metal group, titanium group, panagium group and rare-earth group.

7. A discharge lamp of claim 6, wherein the halide is iodine.

说明书全文

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High-pressure metal-vapor discharge lamp

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