Vacuum tube including an electron-optical system
AssigneeU.S. Philips Corporation
InventorPetrus J. M. Peters
Life of this patent
Estimating the term…
Abstract
By using micro-connection techniques, for example by means of ceramic glass and conducting glass, an electron-optical system can be manufactured with which the emitted beam can be deflected through 90.degree. within a very short distance (of the order of several mm).
Claims9
A method of manufacturing an electron-optical system for a vacuum tube provided with at least one semiconductor cathode supported on an insulating plate and having an emissive surface for emitting electrons and an electron-optical system for deflecting at least one electron beam emitted by the surface comprising a plurality of spaced apart grids of a conducting material, and a plurality of spaced apart electrically conducting pins secured to said plate, characterized in that an assembly of at least some of the grids mutually separated by spacers is secured to the pins by means of a ceramic glass material and in that the ceramic glass is subsequently cured, the spacers being removed after curing and apertures being provided in the grids.
Dependencies are inferred from the claim text.