Electron emitter and light emission element
First Claim
1. An electron emitter including an emitter element made of a dielectric material and at least one electrode in contact with said emitter element, wherein primary electrons originate from said at least one electrode and impinge upon said emitter element for emitting secondary electrons from said emitter element, and said electron emitter element outputs both primary and secondary electrons.
1 Assignment
0 Petitions
Accused Products
Abstract
Primary electrons impinge upon an emitter section of an electron emitter for causing emission of the secondary electrons. The secondary electrons are outputted from the electron emitter. The secondary electrons emitted from the emitter section are accelerated in an electric field applied to the emitter section for generating an electron beam. The electron emitter has the emitter section having a plate shape, a cathode electrode formed on a front surface of the emitter section, an anode electrode formed on a back surface of the emitter section. A drive voltage from a pulse generation source is applied between the cathode electrode and the anode electrode through a resistor. The anode electrode is connected to GND. A collector electrode is provided above the cathode electrode. A bias voltage is applied to the collector electrode.
-
Citations
13 Claims
- 1. An electron emitter including an emitter element made of a dielectric material and at least one electrode in contact with said emitter element, wherein primary electrons originate from said at least one electrode and impinge upon said emitter element for emitting secondary electrons from said emitter element, and said electron emitter element outputs both primary and secondary electrons.
-
12. A light emission element including an electron emitter comprising:
-
an emitter element made of a dielectric material; an electrode facing said emitter element for generating an electric field between said emitter element and said electrode; and a phosphor provided on said electrode, wherein primary electrons impinge upon said emitter element for emitting secondary electrons from said emitter element, and said electron emitter element outputs both primary and said secondary electrons, and said primary and said secondary electrons emitted from said emitter element impinge upon said phosphor for inducing light emission from said phosphor.
-
-
13. An electron emitter comprising an emitter element including a dielectric material layer and first and second electrodes formed thereon, wherein a drive voltage is applied between said first electrode and said second electrode for reversing polarization of said emitter element to emit primary electrons;
wherein polarization reversal or polarization change occurs in an electric field E applied to said emitter element represented by E=Vak/d, where d is a distance between said first electrode and said second electrode and wherein primary electrons originating from one of said first and second electrodes impinge upon said dielectric material layer to cause the emission of secondary electrons from said dielectric material layer.
Specification