Discharge lamps using hollow cathodes with integrated getters and methods for manufacturing same
AssigneeSaes Getters S.P.A.
InventorsAlessandro Gallitognotta, Claudio Boffito, Alessio Corazza
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Abstract
A hollow cathode having at least a portion of the inner, outer or both surfaces coated with a layer of a getter material is described. Some methods for the production of the hollow cathode of the invention are also described, which include cathodic and electrophoretic deposition of the getter layer onto the hollow cathode.
Claims16
A cathode, said cathode formed by a cylindrical hollow part closed at a first end and open at the opposed end in which on at least an outer or inner portion of said cylindrical surface includes a layer of getter material.
A method for the production of a cathode, including the steps of:
- forming a cylindrical hollow part, wherein said cylindrical hollow part is closed at a first end and open at the opposed end;
- and
- at least partially coating said cylindrical hollow part with a getter layer on the outer or inner portion of said cylindrical hollow part by the technique of cathodic deposition.
A method for the production of a cathode, including the steps of:
- forming a cylindrical hollow part, wherein said cylindrical hollow part is closed at a first end and open at the opposed end;
- and
- at least partially coating said cylindrical hollow part with a getter layer on the outer or inner portion of said cylindrical hollow part by the technique of electrophoretic deposition.
A method for the production of a cathode, including the steps of:
- forming a cylindrical hollow part, wherein said cylindrical hollow part is closed at a first end and open at the opposed end;
- and
- a step for at least partially coating said cylindrical hollow part with a getter layer on the outer or inner portion of said cylindrical hollow part.
Dependencies are inferred from the claim text.