Unlock instant, AI-driven research and patent intelligence for your innovation.

Electron gun of colour cathode-ray tube

A technology of cathode ray tube and electron gun, which is applied in the direction of cathode ray tube/electron beam tube, solid thermionic cathode of discharge tube, circuit, etc., can solve the problems of cathode ray tube damage and leakage of tube socket

Inactive Publication Date: 2004-08-04
MERIDIAN SOLAR & DISPLAY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A possible disadvantage of this procedure is that while the spurious emissions can be reduced when using high strike voltages, the high voltages may cause damage to the cathode ray tube or cause socket leakage near the socket portion 25

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electron gun of colour cathode-ray tube
  • Electron gun of colour cathode-ray tube
  • Electron gun of colour cathode-ray tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0024] The present invention provides a way to reduce spurious emissions by increasing the efficiency of the tapping procedure. By using electrode materials with excellent electrical conductivity, it is possible to apply lower tapping voltages. At least one electrode of the electron gun is made of Fe-Cr-Ni alloy with a conductivity higher than 12200mho / m, and in addition, taking into account the thermal expansion rate of the electrode, the conductivity of at least one electrode of the electron gun is in the range of 12500-13500mho / m . In particular, one of the electrodes of the electron gun may be made of a Fe-Cr-Ni alloy having a conductivity higher than 12200 mho / m.

[0025] Typically, when a knocking voltage is applied to the shield cup, a knocking voltage is induced in each electrode, so when the electrodes are made of a highly co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a cathode ray tube, and more particularly, to a cathode ray tube with reduced stray emissions by improving the electrical conductivity of an electrode material of an electron gun housed in a funnel of the cathode ray tube.

Description

technical field [0001] The present invention relates to a cathode ray tube, and more particularly to a cathode ray tube in which stray emissions are reduced by increasing the conductivity of an electrode material of an electron gun enclosed in a funnel of the cathode ray tube. Background technique [0002] figure 1 The diagram illustrates the structure of a known color cathode ray tube. The cathode ray tube may include a front glass panel 8, a funnel 1 connected to the panel 8, a fluorescent screen 7 formed on the inner surface of the panel 8, a shadow mask 6 with a color selection function, the shadow mask being Disposed at a predetermined distance from the fluorescent screen 7, an electron gun 3 for emitting electron beams, which is housed in the neck 5 of the funnel 1, and a deflection yoke 4 for deflecting the electron beams emitted from the electron gun 3 to a specified direction. [0003] The panel 8 and the funnel 1 are connected to each other by fusing glass, and t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01J1/48H01J29/02H01J29/48
CPCH01J29/48H01J29/02H01J1/48
Inventor 郑泰官
Owner MERIDIAN SOLAR & DISPLAY