Device provided with an evacuated bulb comprising a getter...

Details Device provided with an evacuated bulb comprising a getter... Device provided with an evacuated bulb comprising a getter...

H - Electricity

01

J

313/104

H01J 61/26 (2006.01) H01J 7/18 (2006.01) H01J 19/70 (2006.01)

Patent

CA 1205122

12 ABSTRACT: Device provided with an evacuated bulb comprising a getter and a getter auxiliary means. In devices provided with an evacuated bulb in which is present an activated metallic getter, hydro- carbons can be released or produced. As a result, the gas pressure and the heat conductivity increase. In devices according to the invention, for example, low-pressure sodium vapour discharge lamps, solar collectors, display tubes and image intensifiers, a getter auxiliary means is provided. The auxiliary means comprises an inorganic porous carrier charged with a transition metal having an atomic number from the series 23 to 29, 41 to 47 and 73 to 79, in elementary form or in oxide form, or with a combination of at least two of the said materials. Fig. 4.

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