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US 5,760,538 AGranted
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.
Claims50
An electron beam apparatus comprising:
- a vacuum envelope containing an electron source including an electron-emitting device;
- a target arranged to be irradiated with an electron beam emitted from said electron-emitting device;
- a pair of electrodes to which different electrical potentials are to be applied;
- and a spacer sandwiched between said pair of electrodes, characterized in that the spacer is coated with a semiconductor film and in that each of the electrodes is in electrical contact with the semiconductor film, and in that at least one of the electrodes abuts the spacer and is mechanically bonded thereto at the abutment via an electroconductive bonding member which electrically connects the electrode to the semiconductor film.
1 more element
An image-forming apparatus comprising:
- an electron beam apparatus comprising:
- a vacuum envelope containing an electron source including an electron-emitting device;
- a target arranged to be irradiated with an electron beam emitted from said electron-emitting device;
- a pair of electrodes to which different electrical potentials are to be applied;
- and a spacer sandwiched between said pair of electrodes, characterized in that the spacer is coated with a semiconductor film and in that each of the electrodes is in electrical contact with the semiconductor film, and in that at least one of the electrodes abuts the spacer and is mechanically bonded thereto at the abutment via an electroconductive bonding member which electrically connects the electrode to the semiconductor film;
- and
- image forming means for forming an image with the electron beam generated by said electron beam apparatus.
4 more elements
Dependencies are inferred from the claim text.