专利检索 ap:("Koninklijke Philips Electronics N.V.") AND inv:"PENNINGS, Antonius, Jacob" 第 1 页

1.

发明授权
COLOUR CATHODE RAY TUBE COMPRISING AN IN-LINE ELECTRON GUN 失效
标题翻译：在一字形电子枪彩色显像管

公开(公告)号：EP0719445B1

公开(公告)日：1998-11-11

申请号：EP95915979.9

申请日：1995-05-05

申请人： Koninklijke Philips Electronics N.V.

发明人： STIL, Lambert, Johannes , BOHLANDER, Johannes, Hendricus , SPANJER, Tjerk, Gerrit , LOS, Abraham, Adrianus , PENNINGS, Antonius, Jacob

IPC分类号： H01J29/00

CPC分类号： H01J29/503 , H01J29/51 , H01J2229/4872 , H01J2229/4875 , H01J2229/4879

摘要： A colour cathode ray tube comprising an in-line electron gun having a main lens with recessed apertures. The main lens is formed by two electrodes. These electrodes have outer edges and recessed apertures which allow passage of three in-line electron beams and which are arranged at a distance d1 and d2, respectively, from said outer edges. The outermost apertures are asymmetric. The difference d1-d2 and the asymmetry of the outermost apertures is such that both the beam displacement and the core haze asymmetry are minimal.