Metal halide lamp专利检索-卤素灯白炽灯光源手电筒灯光专利检索查询-专利查询网

Metal halide lamp

阅读：817发布：2023-05-08

专利汇可以提供Metal halide lamp专利检索，专利查询，专利分析的服务。并且A high pressure metal halide discharge lamp containing mercury and metal halides including an alkali metal halide and wherein the segregation of alkali metal (sodium) is minimized. In a lamp for vertical operation, the normally asymmetric alkali metal distribution in the vapor phase is offset or reduced by an asymmetric lamp construction using at the lower end one or more of a smaller electrode which runs hotter, a heat-reflecting coating, or a tapered end chamber. This construction drives the condensed metal halides away from the lower end while raising the temperature of the excess halide, and exerts a net force on the alkali metal atoms in the vapor phase to drive them toward the upper end of the lamp. The result is that segregation of the alkali metal is reduced, leading to higher efficiency, improved color and reduced color separation.，下面是Metal halide lamp专利的具体信息内容。

权利要求

2. A lamp as in claim 1 wherein said asymmetric construction resides in at least one of the following features: a smaller electrode at the lower end than at the upper end, a more extensive heat reflective coating on the lower end, and a tube end configuration reducing heat loss at the lower end.

3. A lamp as in claim 1 wherein a heat reflective coating is applied to the lower end only and extends beyond the tip of the lower electrode.

4. A lamp as in claim 1 wherein the alkali metal halide is sodium iodide.

5. A lamp as in claim 1 wherein the alkali metal halide is sodium iodide and a heat reflective coating is applied to the lower end only of the arc tube.

6. A lamp as in claim 5 wherein the heat reflective coating extends beyond the upper end of the lower electrode.

7. A lamp as in claim 6 wherein the filling of metal halide includes thallium and indium.

8. A lamp as in claim 1 wherein the alkali metal halide is sodium iodide, a smaller size of electrode is provided at the lower end than at the upper end, and a heat reflective coating is applied to the lower end only of the arc tube.

9. A lamp as in claim 1 wherein the alkali metal halide is sodium iodide, a smaller size of electride is provided at the lower end than at the upper end, a heat reflective coating is applied to the lower end only of the arc tube, and a tube end configuration reducing heat loss is provided at the lower end.

10. A lamp as in claim 9 wherein the filling of metal halide includes thallium and indium.

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Metal halide lamp

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