Image forming apparatus for forming image by electron irradiation from electron-emitting device
AssigneeCanon Kabushiki Kaisha
InventorsHideaki Mitsutake, Hidetoshi Suzuki, Naoto Nakamura
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Abstract
This invention discloses an image forming apparatus having an electron source on which a plurality of electron-emitting devices are arranged, an image forming member on which an image is formed by electrons emitted by the electron-emitting devices, and a structure for maintaining an interval between the electron source and the image forming member, in which an interval between two electron-emitting devices adjacent to each other via the structure is larger than an interval between two electron-emitting devices adjacent to each other without the mediacy of the structure, and electrons emitted by the electron-emitting devices are deflected toward the structure.
Claims21
An image-forming apparatus comprising:
- an electron source on which a plurality of electron-emitting devices are arranged;
- an image-forming member on which an image is formed by irradiation of electrons emitted by said electron-emitting devices;
- a structure arranged between said electron source and said image-forming member to maintain an interval between said electron source and said image-forming member;
- and
- deflection means for deflecting each of electrons emitted by two adjacent electron-emitting devices, the structure being positioned between the two adjacent electron-emitting devices, toward the structure while the electrons are traveling from said electron-emitting devices to said image-forming member,
- wherein each of said electron-emitting devices comprises a negative electrode, an electron-emitting portion, and a positive electrode which are arranged on a substrate surface for arranging said electron-emitting device.
An image-forming apparatus comprising:
- an electron source having a plurality of electron-emitting devices arranged substantially linearly;
- an image-forming member on which an image is formed by irradiation of electrons emitted by said electron-emitting devices;
- and
- a structure arranged between said electron source and said image-forming member to maintain an interval between said electron source and said image-forming member,
- wherein an interval between two electron-emitting devices adjacent to each other via said structure is larger than an interval between two electron-emitting devices adjacent to each other without mediacy of said structure, and electrons emitted by said electron-emitting devices are deflected toward said support structure while the electrons are traveling from said electron-emitting devices to said image-forming member, and
- wherein each of said electron-emitting devices comprises a negative electrode, an electron-emitting portion, and a positive electrode which are arranged on a substrate surface for arranging said electron-emitting device.
An image-forming apparatus comprising:
- an electron source on which a plurality of electron-emitting devices are arranged;
- an image-forming member on which an image is formed by irradiation of electrons emitted by said electron-emitting devices;
- a structure arranged between said electron source and said image-forming member to maintain an interval between said electron source and said image-forming member;
- and
- a deflection electrode for deflecting electrons emitted by the electron-emitting devices toward the structure while the electrons are traveling from said electron-emitting devices to said image-forming member,
- wherein said deflection electrode is formed on the structure, and an interval between two electron-emitting devices adjacent to each other via said structure is larger than an interval between two electron-emitting devices adjacent to each other without mediacy of said structure.
Dependencies are inferred from the claim text.