Discharge lamp
AssigneeUshiodenki Kabushiki Kaisha
InventorsTakeo MATSUSHIMA, Yukio YASUDA, Yutaka MUNE
Life of this patent
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Abstract
To provide a flickerless discharge lamp which can remove hydrogen by a simple and safe means even if the lamp is a large discharge lamp with high pressure when lit, the discharge lamp has a pair of electrodes and a hydrogen getter (4) in the interior of an arc tube, the hydrogen getter (4) being formed of a container (41) made of metal which is hydrogen permeable and a hydrogen absorbent body (42) that is composed of a metal which can absorb hydrogen that is enclosed inside of the container (41) and is fixed to an inside wall of the container (41).
Claims10
Discharge lamp comprising an arc tube with a pair of electrodes and a hydrogen getter in the inside thereof;
- said hydrogen getter comprising a container formed of a metal which is hydrogen permeable and a hydrogen absorbent body that is formed of a metal which can absorb hydrogen that is enclosed inside said container;
- wherein said hydrogen absorbent body is melted and fixed to an inside wall of said container.
Dependencies are inferred from the claim text.