| 摘要 |
<p>PROBLEM TO BE SOLVED: To minimize the variation amount of an electron orbit to the working error of an electron transmission hole, assembly error, and power source voltage variation by arranging a potential regulating plate having an electron passing hole between an element substrate and an accelerating electrode, and applying the specified voltage. SOLUTION: An electron beam generating device has an electron source having plural cold cathode type electron emitting parts on an element substrate 1001, an accelerating electrode 94 which is arranged so as to face an electron emitting part and applies accelerated voltage acting to emitted electrons, plural potential regulating plates 1011 having an electron passing hole 202 for passing an electron, arranged between the substrate 1001 and the electrode 94, and a voltage applying means 95 which applies voltage almost equal to potential Vs determined by the distance (d) between the accelerated voltage Va and the electron source in the height (m) on the lower surface of the regulating plate 1011 to the regulating plate 1011. By satisfying the condition represented by Vs≈Va×(m/d), the electric field variation affecting an electron orbit, in the vicinity of the electron emitting part can be made small.</p> |
