Cathode with integraded getter and low work function for...

Details Cathode with integraded getter and low work function for... Cathode with integraded getter and low work function for...

H - Electricity

01

J

H01J 61/06 (2006.01) H01J 7/18 (2006.01) H01J 9/02 (2006.01) H01J 61/09 (2006.01) H01J 61/26 (2006.01)

Patent

CA 2544019

There are disclosed several embodiments of a cathode (11; 20; 30) for cold cathode lamps having the surface at least partially coated with a layer of a getter material (15; 26; 31), which allows to achieve a reduction of the value of the work function of the cathode (11,20,30) and therefore a reduction of the power consumption of the lamp.

La présente invention se rapporte à plusieurs modes de réalisation d'une cathode (11, 20, 30) pour lampes à cathode froide. La surface de la cathode selon l'invention est au moins partiellement revêtue d'une couche d'un matériau de getter (15, 26, 31), ce qui permet de réduire la valeur du travail d'extraction de la cathode, et donc de diminuer la consommation d'énergie de la lampe.

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