公开(公告)号：US3868541A

公开(公告)日：1975-02-25

申请号：US25854972

申请日：1972-06-01

Applicant: PHILIPS CORP

Inventor： VAN ZUIJLEN PETER ,  FONTIJN LEENDERT ANTONIUS

IPC: H01J37/24 ,  H04N5/63 ,  H01J3/08

CPC classification number: H01J37/242 ,  H04N5/63

Abstract: An electron-beam apparatus is provided with an electrode for intercepting a portion of the electron beam so as to achieve automatio cathode temperature control. The filament current is controlled by means of a signal derived from this interception electrode.

Abstract translation: 电子束装置设置有用于截取电子束的一部分的电极，以实现自动阴极温度控制。 灯丝电流通过从该截取电极得到的信号来控制。