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US 4,906,890 AGranted
Hollow anode optical radiation source
OwnerVujo I. Miljevicinventor
Life of this patent
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Abstract
In a discharge tube for use in a housing for a vacuum, an improved optical radiation source is formed by a cathode and a hollow anode. The hollow anode has at least one first surface defining a hollow, partly closed space. The first surface is disposed for cooperation with the cathode. The hollow anode also has at least one second surface that also could cooperate with the cathode. Only the first of the first and second surfaces is conductive. Electrodes are respectively connected to the cathode and hollow anode.
Claims24
A hollow anode optical radiation source, comprising:
- a cathode;
- a hollow anode comprising at least one first surface defining a hollow, partly closed space, the first surface being disposed for cooperation with the cathode, and at least one second surface that also would cooperate, if conductive, with the cathode, only the first of the first and second surfaces being conductive;
- and
- electrodes respectively connected to the cathode and hollow anode.
1 more element
A hollow anode optical radiation source comprising:
- a cathode;
- a hollow anode in which only an inner surface of an aperture therein is conductive;
- means for providing a magnetic field in the hollow anode aperture;
- and
- electrodes respectively connected to the cathode and hollow anode.
2 more elements
Dependencies are inferred from the claim text.