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US 6,274,972 B1Granted
Electron beam apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHideaki Mitsutake, Shinichi Kawate, Naoto Nakamura, Yoshihisa Sano
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Abstract
An electron beam apparatus includes an electron source having an electron-emitting device, an electrode for controlling an electron beam emitted from the electron source, a target to be irradiated with an electron beam emitted from the electron source and a spacer arranged between the electron source and the electrode. The spacer has a semiconductor film on the surface thereof that is electrically connected to the electron source and the electrode.
Claims8
An electron beam apparatus comprising:
- a vacuum envelope containing a plurality of electron-emitting devices wired by a plurality of row-directed wires and a plurality of column-directed wires to form a matrix wiring structure;
- and
- a plate-shaped spacer capable of forming an electrical connection between a plurality of wires if arranged in electrical contact with the plurality of wires, said spacer being in electrical contact with only one wire of said row-directed or column-directed wires, wherein
- said row-directed wires are laminated over said column-directed wires and said spacer is in electrical contact with one of said row-directed wires, or wherein said column-directed wires are laminated over said row-directed wires and said spacer is in electrical contact with one of said column-directed wires.
1 more element
Dependencies are inferred from the claim text.