Emitter

Details

Veröffentlichungs-Nr.

EP4787417

Anmeldetag

11. September 2024

Veröffentlichung

3. April 2025

Rechtsraum

EP

IPC

H01J37/07, H01J1/15

Abstract

An emitter including: an electron source tip; a first filament connected to a first position on a side surface of the electron source tip; a second filament connected to a second position on a side surface of the electron source tip; two upper positive terminals to which two first side surfaces of the first filament are connected, respectively; two upper negative terminals to which two second side surfaces of the second filament are connected, respectively; one lower positive terminal electrically connected to the two upper positive terminals; one lower negative terminal electrically connected to the two upper negative terminals; and an insulator that carries the upper positive terminals, the upper negative terminals, the lower positive terminal, and the lower negative terminal, in which the first position and the second position are different positions, and the first side surfaces of the first filament are connected to side surfaces of the upper positive terminals, respectively, and the second side surfaces of the second filament are connected to side surfaces of the upper negative terminals, respectively.

Anmelder

Firma

Denka Company Limited

Land

🇯🇵 Japan

Fachgebiete