Gaseous discharge high intensity lamp with fluid cooled electrode专利检索-高强度放电灯气体放电灯光源灯光专利检索查询-专利查询网

Gaseous discharge high intensity lamp with fluid cooled electrode

阅读：91发布：2021-11-09

专利汇可以提供Gaseous discharge high intensity lamp with fluid cooled electrode专利检索，专利查询，专利分析的服务。并且A high intensity light source is provided by an arc discharge xenon lamp which includes an anode and a cathode electrode enclosed within a sealed, gas-filled, light transparent envelope. The electrodes are disposed in spaced relation such that an arc may be energized across the adjacent ends when a voltage is applied thereacross. The anode electrode is hollow and closed at the arc end. The internal surface at the hollow end has at least one protrusion to increase the exposure surface and a fluid coolant provides greater heat dissipation therefrom. Preferably the anode electrode includes a tubular member of one metal having an enclosed end, a layer of tungsten capping the external arc end to form the arcing surface, and a further metallic layer joining the tubular member and the tungsten layer. In one embodiment, the metallic layer has a thermal expansion coefficient of an intermediate value between that of the tungsten layer and tubular member.，下面是Gaseous discharge high intensity lamp with fluid cooled electrode专利的具体信息内容。

权利要求

1. A high intensity light source comprising: a sealed, gas-filled envelope having a light transparent portion; a first and a second electrode disposed in said envelope with an end of each in spaced relation such that an arc may be energized across the adjacent ends thereof upon application of a selected voltage thereacross, said first electrode being an anode including a hollow tubular member of one metal disposed in the region of the arc end and having said end closed, the internal surface of said closed end having at least one protrusion increasing the exposure surface thereof and heat dissipation therefrom, said protrusion including a spiral fin having channels between adjacent walls of said fin, said closed end having an external layer of tungsten and an underlying layer adjoining said tubular member and said tungsten layer; and means for applying coolant to said internal surface of said first electrode including an inner tube within said hollowed electrode and a passageway for said coolant between said inner tube and closed end, the exit end of said inner tube including a nOzzle having a constricted opening centrally positioned over said fin such that the coolant enters substantially at the center of said fin and flows radially outwardly through said channels and exits through said passageway.

2. A high intensity light source in accordance with claim 1, wherein said tubular member is copper and includes said internal closed end surface and protrusion thereon.

3. A high intensity light source in accordance with claim 2, wherein said intermediate metallic layer is interposed between said tungsten layer and said copper member, said metallic layer being of a material having a thermal expansion coefficient of an intermediate value between that of said tungsten cap and said copper member, and being fused to said copper member and said tungsten layer.

4. A high intensity light source in accordance with claim 2, wherein said exit end and nozzle are in contact with the protruding end of said fin.

5. A high intensity light source in accordance with claim 4, wherein said intermediate metallic layer is of molybdenum fused to said tungsten layer and to said copper member.

6. A high intensity light source in accordance with claim 4, wherein said metallic layer is a granular layer of crushed tungsten and wherein the arc end of said copper member is fused onto said tungsten layer through the interstices between the grains of said crushed tungsten.

7. A high intensity light source in accordance with claim 4, wherein said copper member includes an external coating of a black metallic material for increasing heat absorption.

8. A high intensity light source in accordance with claim 7, wherein said black material is selected from the group consisting of platinum black and copper oxide.

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Gaseous discharge high intensity lamp with fluid cooled electrode

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