Title:
【発明の名称】陰極線管
Document Type and Number:
Japanese Patent JP2589565
Kind Code:
B2
Abstract:
The novel CRT has an electron gun mount assembly (21) therein which includes a cathode (25) for generating at least one electron beam and a plurality of successively spaced electrodes, including a screen grid electrode (29), a focusing electrode (31) and an anode electrode (33), secured to one major surface of at least two longitudinally extending insulating support beads (23a,23b). A first gap (57) of predetermined width extends between the anode electrode and one end of the focusing electrode. A second gap (59) of predetermined width extends between the opposite end of the focusing electrode and the screen grid electrode. An opposite major surface of each of the support beads faces outwardly and has thereon an electrically-conducting coating (43a,43b) having a longitudinal dimension, d. Suitable voltages are applied to the electrodes to generate electrical activity. The coating on each of the beads is spaced a distance of about 1.25 x d from the end of the focusing electrode adjacent to the second gap.
Inventors:
SAMYUERU HOORU BENIGUNI
Application Number:
JP6339389A
Publication Date:
March 12, 1997
Filing Date:
March 14, 1989
Export Citation:
Assignee:
AARU SHII EE TOMUSON RAISENSHINGU CORP
International Classes:
H01J29/48; (IPC1-7): H01J29/48
Domestic Patent References:
| JP55122345A | ||||
| JP56156651A | ||||
| JP58145045A | ||||
| JP59160945A | ||||
| JP59167941A | ||||
| JP5564351A |
Attorney, Agent or Firm:
Hiroshi Tanaka (1 outside)