公开(公告)号：CA1018577A

公开(公告)日：1977-10-04

申请号：CA216026

申请日：1974-12-12

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  HORNMAN JOHANNES P

IPC: H01J17/49

Abstract: A gas discharge panel in which the cathodes are placed in grooves and are connected to the bottom of the groove throughout their length by means of low softening-point glass enamel. The glass is preferrably devitrified (crystalline).

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：CA943613A

公开(公告)日：1974-03-12

申请号：CA129608

申请日：1971-12-08

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  JACOBS JACOBUS H

IPC: H01J17/49

公开(公告)号：DE2152578A1

公开(公告)日：1972-05-25

申请号：DE2152578

申请日：1971-10-22

Applicant: PHILIPS NV

Inventor： PETRUS HORNMAN JOHANNES ,  VAN ESDONK JOHANNES ,  VISSER JAN

IPC: H01J7/18 ,  H01J17/24 ,  H01J61/26

Abstract: A getter for a gas discharge tube having mercury vapor in which the getter which is active at room temperature is separated from the mercury-containing atmosphere by porous sintered bodies.

公开(公告)号：DE3889696T2

公开(公告)日：1994-12-08

申请号：DE3889696

申请日：1988-07-04

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  HASKER JAN ,  VAN LITH JOSEF JOHANNES

IPC: H01J1/28 ,  H01J9/04

Abstract: A cathode body for an impregnated scandate cathode is obtained by compressing and sintering a mixture of tungsten powder with approximately 0.5% by weight of scandium, whereafter the body is impregnated.

公开(公告)号：DE3785100T2

公开(公告)日：1993-09-30

申请号：DE3785100

申请日：1987-06-25

Applicant: PHILIPS NV

Inventor： VROOMEN LAURENTIUS CORNELIS JO ,  VAN ESDONK JOHANNES ,  KHOE GIOK DJAN ,  SWEMMERS ANTONIUS HENDRIKUS MA

IPC: G02B6/36 ,  G02B6/38 ,  G02B6/40

公开(公告)号：DE3762075D1

公开(公告)日：1990-05-03

申请号：DE3762075

申请日：1987-05-20

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  HASKER JAN ,  SWEMMERS ANTONIUS HENDRIKUS MA

IPC: H01J1/28 ,  H01J9/04

Abstract: The invention relates to the manufacture of a dispenser cathode having a porous tungsten body incorporating scandium oxide in at least a layer adjacent the surface area intended for electron emission. It was surprisingly found that a scandium oxide-containing tungsten body can be mechanically processed satisfactorily if it incorporates copper prior to the processing operation.

公开(公告)号：DE3669229D1

公开(公告)日：1990-04-05

申请号：DE3669229

申请日：1986-06-19

Applicant: PHILIPS NV

Inventor： ZWIER JAN ,  VASTERINK JOHANNES HERMANNUS A ,  VAN ESDONK JOHANNES

IPC: H01J1/304 ,  H01J1/308 ,  H01J1/32 ,  H01J1/34 ,  H01J3/02

Abstract: @ In order to improve the stability of a cold cathode (5) of the reverse biased junction type, the vacuum space (2) is coupled with a reservoir (10), within which a source (21) of material reducing the work function, for example caesium, is present. By influencing the vapour pressure and the temperature in component parts (13, 16) of the reservoir (10) and in the source (21), loss of caesium due to adsorption or other phenomena occurring at the emitting surface (8) of the cathode (5) can be compensated for by an incident beam of caesium (25).

公开(公告)号：DE3669227D1

公开(公告)日：1990-04-05

申请号：DE3669227

申请日：1986-04-29

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  VAN HAL HENRICUS ALBERTUS MARI ,  VAN LITH JOSEF JOHANNES

IPC: H01J1/14 ,  H01J1/28 ,  H01J9/04

Abstract: The invention relates to a method of manufacturing a dispenser cathode having a porous tungsten body, in which a metal oxide is provided in the body and the body is impregnated with barium. Good results as regards life and resistance to ion bombardment are obtained if the comparatively cheap oxides of gallium and indium are used.

公开(公告)号：IT1177459B

公开(公告)日：1987-08-26

申请号：IT2413184

申请日：1984-12-19

Applicant: PHILIPS NV

Inventor： VAN ESDONK JOHANNES ,  HASKER JAN ,  STOFFELS JACOBUS

IPC: H01J1/14 ,  H01J1/20 ,  H01J1/26 ,  H01J9/04 ,  H01J