Patent ID: 7892062

Claim:
A method for manufacturing an electron gun, comprising: providing a single support bracket, the single support bracket having a clear aperture and a plurality of alignment holes, the alignment holes configured to fit a plurality of first alignment rods, and a plurality of anchor tabs configured to fit a plurality of second alignment rods; providing a monolithic structure that includes a plurality of beam-forming electrodes to form at least one beam, the monolithic structure having a plurality of aperture clusters for each beam and a plurality of alignment holes configured to fit the plurality of first alignment rods, the alignment holes disposed outside the aperture clusters; enclosing the monolithic structure within a recessed region of the single support bracket such that a first beam-forming electrode from the plurality of beam-forming electrodes is in contact with the single support bracket to establish an electrical connection to the first beam-forming electrode through a tab extending from the single support bracket; aligning one of a cathode or a cathode holder with the single support bracket, the monolithic structure, and a main lens by assembling on the first alignment rods; and affixing the plurality of second alignment rods to the plurality of anchor tabs to form the electron gun.