Electron apparatus using electron-emitting device and image forming apparatus
US6184619A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/866
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron apparatus includes a rear substrate having an electron-emitting device, a front substrate irradiated with electrons, and a support member for maintaining the interval between these substrates. The distribution of the electric field is controlled, and a force acting in the direction away from the support member is applied to emitted electrons to prevent the electrons from striking the support member. At this time, the electrons are accelerated toward the front substrate. Since the degree of deflection by a deflection force on the rear substrate side is larger than the degree of deflection by a deflection force on the front substrate side, the deflection force on the rear substrate side is relatively weakened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.