Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
  • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
  • H01J29/58—Arrangements for focusing or reflecting ray or beam
  • H01J29/62—Electrostatic lenses
  • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
  • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun

Applications Claiming Priority (1)

Publications (1)

Family

ID=19868112

Family Applications (1)

Country Status (2)

• 0
  • BE BE513397D patent/BE513397A/xx unknown
• 1952
  • 1952-08-07 FR FR1061322D patent/FR1061322A/fr not_active Expired

Also Published As

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