ELECTRODE FOR ELECTRON GUN,申请号KR19800004264-传众专利搜索

ELECTRODE FOR ELECTRON GUN

申请公布号：KR840001181(B1)

申请号：KR19800004264

申请日期：1980.11.06

申请公布日期：1984.08.16

申请人：

HITACHI LTD.

发明人：YABE MINORU;NODA GENIJI;ENDOW SADORU;YAMAWOJI MASAGI

分类号：H01J29/50;(IPC1-7):H01J29/50

主分类号：H01J29/50

摘要：In a electrode for a colour tube triple electron gun assembly cylindrical portions around the apertures are formed by pressing, the ends of the portions being bevelled to ensure an accurate cross-section. A circular groove formed opposite the bevelled surface focilitates the accurate formation of the latter. The inner edge of the bottom portion of each cylindrical member is provided with a tapering sruface so that an electronlens having a desired circular cross-section can be formed. As a result, an electrode structure having its cylindrical portions integrally formed and having a desired focusing characteristic can be obtained.