公开(公告)号：US3500390A

公开(公告)日：1970-03-10

申请号：US3500390D

申请日：1968-02-19

Applicant: MCNANEY JOSEPH T ,  HAROLD W ULMER

Inventor： MCNANEY JOSEPH T ,  ULMER HAROLD W

IPC: H01J17/49 ,  G08B5/00

CPC classification number: H01J17/49 ,  H01J2893/0069

公开(公告)号：US3381092A

公开(公告)日：1968-04-30

申请号：US37600564

申请日：1964-06-18

Applicant: LILLIAN O. MCEWEN ,  HAROLD W. ULMER

Inventor： MCEWEN LILLIAN O ,  ULMER HAROLD W

IPC: H04M1/27 ,  H04M11/04

CPC classification number: H04M1/27 ,  H04M11/045

公开(公告)号：US3581307A

公开(公告)日：1971-05-25

申请号：US3581307D

申请日：1968-05-29

Applicant: MCKIM JACK D ,  HAROLD W ULMER

Inventor： MCKIM JACK D ,  ULMER HAROLD W

IPC: G09F9/307 ,  G08B5/36

CPC classification number: G09F9/307 ,  Y10S385/901

Abstract: A direct view high intensity readout module primarily designed for seven segment digital readout systems in which seven incandescent bulbs are connected to a different pin of a nine terminal vacuum tube base, one of the terminals being common and one of the terminals preferably being coupled for a period indication. A light conveyor tube surrounds each of the incandescent bulbs on one end, the other end forming a segment of the seven segment numerical readout. A heat sink is in physical contact with each of the seven light conveyor tubes. A nonglare frosted face plate is cemented over the segment end of the light conveyor tubes.