公开(公告)号：US4832646A

公开(公告)日：1989-05-23

申请号：US145637

申请日：1988-01-11

申请人： Samuel S. Chung ,  Charles H. Rehkopf ,  Franklin G. Reigel ,  Doanld L. Siefker ,  James R. Stowe

发明人： Samuel S. Chung ,  Charles H. Rehkopf ,  Franklin G. Reigel ,  Doanld L. Siefker ,  James R. Stowe

IPC分类号： H01J9/44

CPC分类号： H01J9/445

摘要： An improved aging process for a cathode ray tube in which the main focusing grid (G3) is aged at a potential below that of the G2 grid, resulting in significantly reduced incidence of dark center cathode.

摘要翻译： 对于主聚焦栅格（G3）在低于G2栅格的电位下老化的阴极射线管的改进的老化方法，导致暗中心阴极的发射率显着降低。

公开(公告)号：US4940440A

公开(公告)日：1990-07-10

申请号：US137041

申请日：1987-12-23

申请人： Charles H. Rehkopf ,  Franklin G. Reigel ,  Samuel S. Chung

发明人： Charles H. Rehkopf ,  Franklin G. Reigel ,  Samuel S. Chung

IPC分类号： H01J9/44

CPC分类号： H01J9/44

摘要： In the processing of cathode ray tubes, both the incidence of dark center cathode and residual gas can be reduced by including the step of scanning the mask and screen of the tube with a weak, defocused electron beam, carried out after getter flashing and preferably prior to aging.