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US 2013/0140474 A1Published application
Control grid design for an electron beam generating device
AssigneeTetra Laval Holdings & Finance S.A.
InventorDominique Cloetta
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Abstract
The invention relates to a control grid for an electron beam generating device, wherein the control grid comprises apertures arranged in rows in a width direction and columns in a height direction, wherein a majority of the apertures in a row have the same size, and wherein the size of the apertures of at least one row differs from the size of the apertures of another row.
Claims10
A control grid for an electron beam generating device, said control grid comprising apertures arranged in rows in a width direction and columns in a height direction, wherein
- a majority of the apertures in a row have the same size,
- and wherein the size of the apertures of at least one row differs from the size of the apertures of another row.
Dependencies are inferred from the claim text.