ELECTRON EMISSION DEVICE

摘要

An electrons' emission device (10) is presented. The device comprises an electrodes' arrangement (12) including at least one Cathode electrode (12A) and at least one Anode electrode (12B), the Cathode and Anode electrodes being arranged in a spaced-apart relationship; the device: being configured to expose said at least one Cathode electrode to exciting illumination to thereby cause electrons' emission from said Cathode electrode, the device being operable as a photoemission switching device.