| 摘要 |
<p>The present invention relates to an arrangement for emitting light comprising: a hermetically sealed casing (4) including a transparent or translucent window (10); a layer (3) of a fluorescent substance arranged within said casing covering at least a major part of said window; an electron emitting cathode (1) arranged within said casing for emission of electrons; and an anode (2). Said casing is filled with a gas suitable for electron avalanche amplification. Said cathode and anode are, during use, held at electric potentials such that said emitted electrons are accelerated and avalanche amplified in said gas; and said layer is arranged to emit light through said window in response to being bombarded by avalanche amplified electrons and/or in response to being exposed to ultraviolet light as being emitted in the gas due to interactions between the avalanche amplified electrons and the gas.</p> |
