Discharge lamp
AssigneeUshiodenki Kabushiki Kaisha
InventorsMitsuru Ikeuchi, Katsumi Shojo, Yoichi Kono
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Abstract
A discharge lamp with a high output power in which an increase of the current to be supplied to the discharge lamp can be enabled without the need to enlarge the discharge lamp and the surrounding system. The discharge lamp includes an arc tube having a pair of opposed electrodes, at least one of the electrodes having an electrode body in which a hermetically sealed interior space is formed, and a heat conductor partially filling the hermetically sealed interior space. This heat conductor consists of metal that has a higher thermal conductivity or a lower melting point than the metal comprising the electrode body.
Claims15
Discharge lamp having an arc tube, comprising:
- a pair of opposed electrodes, wherein at least one of the electrodes has a metallic electrode body having a hermetically sealed interior space;
- and
- a heat conductor disposed in the hermetically sealed interior space,
- wherein the heat conductor consists of metal that has a higher thermal conductivity than the metal comprising the electrode body.
A discharge lamp having an arc tube and a pair of opposed electrodes in the arc tube, wherein at least one of the electrodes has a metallic electrode body with a hermetically sealed interior space, wherein a heat conductor is located in the hermetically sealed interior space, and wherein the heat conductor consists of metal with a lower melting point than a melting point of the metallic electrode body.
Dependencies are inferred from the claim text.