| 摘要 |
<p>An electron/photon source based on field emission, cathodoluminescence and photo-enhanced field emission, comprising an evacuated chamber inside a housing, further comprising an anode and a cathode arranged inside said evacuated chamber. Furthermore, the cathode is arranged to emit electrons when a voltage is applied between the anode and cathode, said anode being arranged to emit light at a first wavelength range when receiving electrons emitted from said cathode, and a wavelength range converting material arranged to receive said emitted light of said first wavelength range and emit light at a second wavelength range. In a novel way, the present invention makes it possible to, in two steps, convert the electrons emitted from the cathode to visible light. The invention has shown to be advantageous, and makes it possible to select new emission materials, manufactured at a fraction of the cost associated with the earlier used materials where the electron to visible light conversion was done in one step.</p> |
