Invention Grant
US07492087B2 Electron emission apparatus comprising electron-emitting devices, image forming apparatus and voltage application apparatus for applying voltage between electrodes
失效
电子发射装置,包括电子发射器件,图像形成装置和用于在电极之间施加电压的电压施加装置
- Patent Title: Electron emission apparatus comprising electron-emitting devices, image forming apparatus and voltage application apparatus for applying voltage between electrodes
- Patent Title (中): 电子发射装置,包括电子发射器件,图像形成装置和用于在电极之间施加电压的电压施加装置
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Application No.: US10653127Application Date: 2003-09-03
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Publication No.: US07492087B2Publication Date: 2009-02-17
- Inventor: Toshitami Hara , Kazuya Miyazaki , Akihiko Yamano
- Applicant: Toshitami Hara , Kazuya Miyazaki , Akihiko Yamano
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP9-068174 19970321; JP10-070535 19980319
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J1/304

Abstract:
An electron emission apparatus can effectively suppress the adverse effect of electric discharges that can take place between the oppositely disposed electrodes of the apparatus to which a high voltage is applied by dividing the electrode adapted to have a higher electric potential into segments in order to reduce the electrostatic capacitance between the electrodes. In the case of an electron emission apparatus comprising electron-emitting devices, said plurality of electron-emitting devices are disposed such that the direction along which those that can be driven simultaneously are arranged is not parallel with the direction along which the electrode is divided into the electrode segments in order to reduce the variable range of the electric current that can flow in the segments.
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