公开(公告)号：US3562518A

公开(公告)日：1971-02-09

申请号：US3562518D

申请日：1967-11-21

Applicant: NAT VIDEO CORP

Inventor： JAVORIK LASZLO ,  ROKOS GEORGE A

IPC: H01J29/07 ,  H01J29/86 ,  H01J29/88 ,  H01J31/20

CPC classification number: H01J29/88 ,  H01J29/07 ,  H01J29/868 ,  H01J2229/0777 ,  H01J2229/885 ,  Y10T428/263

Abstract: The glass envelope for a kinescope for color television includes a faceplate panel with a peripheral flange for sealing with a funnel which defines a constricted neck portion. A shadow mask mounted within the peripheral flange of the faceplate panel is coated with a thin layer of bismuth. The constricted neck of the tube is encompassed with paper pulp impregnated with bismuth trioxide; and the external surface of the funnel from the paper pulp to the flange of the faceplate panel is coated with a nonconducting mixture of bismuth trioxide and sodium silicate thereby providing a kinescope with greatly improved X-ray protection.

公开(公告)号：US3525892A

公开(公告)日：1970-08-25

申请号：US3525892D

申请日：1968-10-22

Applicant: NAT VIDEO CORP

Inventor： JAVORIK LASZLO ,  ROKOS GEORGE A ,  GELFAND BENJAMIN L

IPC: H01J29/70 ,  H01J29/54 ,  H01J29/72

CPC classification number: H01J29/702