Title:
【発明の名称】陰極線管
Document Type and Number:
Japanese Patent JP2003502818
Kind Code:
A
Abstract:
A cathode ray tube comprising an electron source and an electron beam guidance cavity having an input aperture and an output aperture, wherein at least a part of the wall of the electron beam guidance cavity near the output aperture comprises an insulating material having a secondary emission coefficient delta1 for cooperation with the cathode. Furthermore, the cathode ray tube comprises a first electrode connectable to a first voltage source for applying, in operation, an electric field with a first field strength E1 between the cathode and the output aperture. delta1 and E1 have values which enable electron transport through the electron beam guidance cavity. A second electrode is placed between the cathode and the cavity. The second electrode is connected to a second voltage source for applying, in operation, an electric field with a second field strength E2 between the cathode and the second electrode for controlling the emission of electrons.
Inventors:
Fundafart Nijisshi
Trompenhard Petrus Hf
Niessen Eduard MJ
Fun Golcom Geraldus Gee Pee
Trompenhard Petrus Hf
Niessen Eduard MJ
Fun Golcom Geraldus Gee Pee
Application Number:
JP2001505033A
Publication Date:
January 21, 2003
Filing Date:
June 19, 2000
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
H01J29/04; H01J3/02; H01J29/48; (IPC1-7): H01J29/04; H01J29/48
Attorney, Agent or Firm:
Susumu Tsugaru (1 person outside)