| 摘要 |
<p>PURPOSE:To stabilize the orbit of electrons emitted from electron emissive elements so as to prevent the electrons from being dislocated from their respective arrival points. CONSTITUTION:An electron source 1 has plural electron emissive elements 15 arranged in the form of a matrix therein, with a spacer 5 of an insulating material functioning as an atmospheric pressure resisting structure in an envelope 10 installed therein. Furtheremore, the electron source 1 has a faceplate 3 wherein a fluorescent screen 7 emitting light by the collision of electrons therewith is formed arranged against the electron emissive elements 15 therein. Out of the respective electron emissive elements 15, ones arranged near and along the spacer 5 are used to emit the electrons to the spacer 5, and charging the spacer 5 with cations generated in the envelope 10 can consequently be neutralized.</p> |
