公开(公告)号：US3716739A

公开(公告)日：1973-02-13

申请号：US3716739D

申请日：1971-08-31

Applicant: GTE SYLVANIA INC

Inventor： SAY D

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/82 ,  H01J29/02 ,  H01J1/92

CPC classification number: H01J29/484 ,  H01J3/026 ,  H01J3/027 ,  H01J29/82

Abstract: IMPROVED MEANS ARE PROVIDED FOR SUPPORTING AND SHIELDING A COMPACT ELECTRON GUN WITHIN THE NECK PORTION OF A CATHODE RAY TUBE. AN ANNULAR MEMBER, DIMENSIONED TO CLOSELY APPROACH THE INTERNAL DIAMETER OF THE NECK, IS FORMED FOR ATTACHMENT TO AT LEAST THREE SPACED-APART STEM LEADS. AN OPEN-ENDED CLOSED-WALL PORTION, UPSTANDING FROM THE CENTRAL APERTURE OF THE ANNULAR MEMBER, IS DIMENSIONED TO ENCOMPASS THE WHOLE OF THE ELECTRON GUM THEREIN. GUN RETENTION MEANS ARE EMPLOYED TO HOLD THE GUM WITHIN THE CLOSED-WALL PORTION IN A MANNER THAT THE FORWARD END OF THE GUN IS POSITIONED AT THE TERMINAL THEREOF.

公开(公告)号：US3602765A

公开(公告)日：1971-08-31

申请号：US3602765D

申请日：1969-09-02

Applicant: BENDIX CORP

Inventor： RATH ROBERT C ,  ENSSLIN FRIEDER H

IPC: H01J3/02 ,  H01J29/56

CPC classification number: H01J3/026

Abstract: A method and apparatus for minimizing electron impingement of an anode in an electron beam gun by measuring the operating temperature of the anode and automatically adjusting the focusing electrode potential as a function of the anode temperature to reduce electron impingement of the anode.

公开(公告)号：US3602752A

公开(公告)日：1971-08-31

申请号：US3602752D

申请日：1969-09-08

Applicant: BENDIX CORP

Inventor： SHRINER WILLIAM H

IPC: H01J3/02 ,  H01J27/20 ,  H01J49/14 ,  H01J3/32

CPC classification number: H01J49/14 ,  H01J3/026 ,  H01J27/20

Abstract: A cathode assembly and an electrical circuit that includes a conductor physically parallel to and electrically in series with a filament so that when the circuit is energized the magnetic fields produced by the current flowing in the filament and the conductor oppose each other, thereby decreasing the dispersing effect of the filament magnetic field on a portion of the electrons emitted from the filament. The diameter of the conductor is sufficiently larger than the diameter of the filament so that only the filament emits electrons when the circuit is energized.

公开(公告)号：US3100273A

公开(公告)日：1963-08-06

申请号：US4064660

申请日：1960-07-05

Applicant: RAYTHEON CO

Inventor： HUSE MASON W

IPC: H01J3/02

CPC classification number: H01J3/026