Field emission cathode
AssigneeLightlab Sweden AB
InventorQiu-Hong Hu
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Abstract
The present invention relates to afield emission cathode, comprising an at least partly electrically conductive base structure, and a plurality of electrically conductive micrometer sized sections spatially distributed at the base structure, wherein at least a portion of the plurality of micrometer sized sections each are provided with a plurality of electrically conductive nanostructures. Advantages of the invention include lower power consumption as well as an increase in light output of e.g. a field emission lighting arrangement comprising the field emission cathode.
Claims20
A field emission cathode, comprising:
- an at least partly electrically conductive base structure;
- and
- a plurality of electrically conductive micrometer sized sections spatially distributed at the base structure,
- wherein at least a portion of the plurality of micrometer sized sections each are provided with a plurality of electrically conductive nanostructures.
A field emission arrangement, comprising:
- a field emission cathode comprising:
- an at least partly electrically conductive base structure;
- a plurality of electrically conductive micrometer sized sections spatially distributed at the base structure,
- wherein at least a portion of the plurality of micrometer sized sections each are provided with a plurality of electrically conductive nanostructures;
- an anode structures;
- and
- an evacuated envelope inside of which the anode structure and the field emission cathode are arranged.
Dependencies are inferred from the claim text.