Electron beam generator

Abstract

Abstract PURPOSE:To fly emitted electrons in the normal line direction of the surface by providing a deflection correcting electrode via an insulating layer at a geometrically asymmetrical position relative to an electron emitting section in a surface conduction type emitting element. CONSTITUTION:A surface conduction type emitting element is formed with electrodes 1, 2 and an electron emitting section 4 via a thin film 3 on the surface of a substrate 5. A deflection correcting electrode 12 is formed via an insulating layer 11, it is arranged at a position other than the electron emitting section 4 and a geometrically asymmetrical position relative to the electron emitting section 4 and applied with the potential common to the electrode 1. Electrons (e) emitted toward a fluorescent plate 8 applied with the high-voltage power source 7 when no deflection correcting electrode 12 is arranged, for example, are biased from the normal line direction of the surface of the substrate 5 due to the potential distribution state between the fluorescent plate 8 and the emitting element. When the deflection correcting electrode 12 is arranged, the potential distribution is changed and electrons (e) can be flown in the normal line direction.

Inventors

• 👤 Hidetoshi Suzuki
• 👤 Ichiro Nomura
• 👤 Toshihiko Takeda
• 👤 Tetsuya Kaneko
• 👤 Yoshikazu Sakano
• 👤 Seishiro Yoshioka
• 👤 Kojiro Yokono

Bibliographic Details