U.S. Philips Corporation

Piet Wiedijk

Gijsbert H Kuus

Johannes H Schmitz

Antonius Henricus Van Der Stap

A high-pressure gas discharge lamp having a discharge vessel of aluminium oxide or yttrium oxide. Disposed within the discharge vessel is an electrode which is connected to a vacuum tight led-out current supply conductor which consists mainly of borides from the group consisting of titanium boride and zirconium boride.

High-pressure gas discharge lamp

A high-pressure gas discharge lamp having a discharge vessel provided with an aggressive gas filling, and electrodes between which the discharge takes place during operation. A hydrogen getter is placed within the discharge vessel and it consists of a getter material surrounded by a hydrogen-permeable wall. The getter material comprises at least a material of the group yttrium, lanthanum, the lanthanides and alloys of the said elements. The hydrogen permeable wall comprises at least one of the elements chromium, molybdenum, tungsten, tantalum, nickel and iron.

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Eindhoven, Netherlands

Piet Wiedijk