公开(公告)号：US3912851A

公开(公告)日：1975-10-14

申请号：US46818474

申请日：1974-05-08

Applicant: PHILIPS CORP

Inventor： VRIJSSEN GERARDUS ARNOLDUS HER ,  STOFFELS JACOBUS ,  COPPENS JOHANNES HENDRIKUS

IPC: H01J9/36 ,  C03C27/04 ,  H01J5/24 ,  H01J29/02 ,  H01J29/86 ,  H01J29/90 ,  H01J29/92 ,  H01J31/28 ,  H01J19/50

CPC classification number: H01J29/92 ,  C03C27/046 ,  H01J5/24 ,  H01J29/025 ,  H01J2893/0038

Abstract: A vacuum-tight envelope of the tube has an aperture sealed by an indium containing material and an electrode spaced apart from the inner wall of the envelope and including a projection bonded to the sealing material.