Electron beam focusing electrode and electron gun using the same
AssigneeSAMSUNG ELECTRONICS CO., LTD. and SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION.
InventorsChan Wook Baik, Anurag Srivastava, Jong Min Kim, Sun Il Kim, Young Mok Son, Gun Sik Park, Jin Kyu So
Life of this patent
Estimating the term…
Abstract
An electron beam focusing electrode and an electron gun using the same may include a plate having a polygonal through-hole; at least a projecting portion formed on at least one side of the through-hole. By using the electron beam focusing electrode, a spreading phenomenon of an electron beam having a rectangular cross section may be reduced. Further, the output of the electron gun may be increased, and electron beams may be easily focused.
Claims20
An electron beam focusing electrode, comprising:
- a plate having a polygonal through-hole;
- and
- a projecting portion formed on at least one side of the through-hole.
A method of reducing a spreading phenomenon of an electron beam with rectangular cross section, comprising:
- forming an electric field in a polygonal through-hole having a projection portion arranged on at least one side of the through-hole;
- passing an electron beam through the through-hole;
- and
- forming a cross section of the electron beam with the electric field.
Dependencies are inferred from the claim text.