Title:
CATHODE STRUCTURE
Document Type and Number:
Japanese Patent JP2021096951
Kind Code:
A
Abstract:
To provide a cathode structure that can reduce power consumption.SOLUTION: A cathode structure 1a includes a cathode substrate 10, a sleeve 20, a heater 30, and an embedding material 40. The sleeve 20 includes a first end portion (20A) fixed to a second surface of the cathode substrate 10 and a second end portion (20B) opposite to the first end portion. An outer peripheral surface S20 of a sleeve 20 has a shape along the side surface of a truncated cone that tapers from the first end portion to the second end portion.SELECTED DRAWING: Figure 2
Inventors:
HARA AKITO
Application Number:
JP2019227251A
Publication Date:
June 24, 2021
Filing Date:
December 17, 2019
Export Citation:
Assignee:
CANON ELECTRON TUBES & DEVICES CO LTD
International Classes:
H01J1/24; H01J23/04
Attorney, Agent or Firm:
Suzue International Patent Office