A light emission device has an emitter made of a dielectric material, a
cathode electrode disposed on a surface of the emitter, an anode
electrode disposed on a reverse surface of the emitter, and a pulse
generation source for applying a drive voltage between the cathode
electrode and the anode electrode through a resistor. A fluorescent body
is disposed on the surface of the emitter out of contact with the
cathode, but as closely to the cathode electrode as possible.