公开(公告)号：CA997150A

公开(公告)日：1976-09-21

申请号：CA181687

申请日：1973-09-21

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  HORNMAN JOHANNES P ,  DE HAAS FRANCISCUS C M

IPC: H01J9/24 ,  H01J9/00 ,  H01J19/52 ,  H01J29/82

公开(公告)号：DD144985A5

公开(公告)日：1980-11-12

申请号：DD21447079

申请日：1979-07-19

Applicant: PHILIPS NV

Inventor： VAN ROOSMALEN JOHANNES H T ,  DE HAAS FRANCISCUS C M

IPC: H01J9/04 ,  H01J9/18 ,  H01J29/04 ,  H01J29/48 ,  H01J29/82 ,  H01J31/38 ,  H01J31/26

Abstract: An electron gun for a camera tube includes an anode and a cathode. The cathode is assembled in a cathode support which can very readily be adjusted relative to the anode in the non-connected condition. In particular, the cathode support and the anode are movable radially with respect to each other and with respect to an axis. An emissive cathode surface and a part of the anode extending perpendicular to the axis remain accurately parallel to each other during the radial movement. As a result of this it is possible to cause the central path of the generated electron beam and the gun axis to coincide so that extra correction coils for aligning the electron beam may be omitted.

公开(公告)号：CA1135772A

公开(公告)日：1982-11-16

申请号：CA331718

申请日：1979-07-12

Applicant: PHILIPS NV

Inventor： VAN ROOSMALEN JOHANNES H T ,  DE HAAS FRANCISCUS C M

IPC: H01J9/04 ,  H01J9/18 ,  H01J29/04 ,  H01J29/48 ,  H01J29/82 ,  H01J31/38

Abstract: 10.2.1979 1 PHN 9194 A diode gun for a camera tube consisting of an anode and a cathode assembled in a cathode supporting bush can very readily be adjusted if the cathode supporting bush and the anode in the non-connected condition are movable radially with respect to each other, the emissive cathode surface and the part of the anode extending perpendicularly to the axis remaining accurately parallel to each other. As a result of this it is possible to cause the central path of the generated electron beam and the gun axis to coincide so that extra correction coils for aligning the electron beam may be omitted.