Current controlling element
US6476336B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Oct 16, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30
Abstract
An actuator having a fixed portion, a vibrating portion supported on the fixed portion so as to undergo vibrations, and an actuating portion including a first and a second electrodes formed on both sides or one side of a deformable layer is provided. The actuator generates displacement motion by holding the electric potential of the first electrode at a constant value and variably controlling the electric potential of the second electrode. A cathode for emitting electrons is formed on the actuator. The current controlling element changes the position of the cathode with respect to the plate by the displacement motion of the actuator to control a current value taken out of the plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.