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US3215890A Electron gun structure for producing an electron beam free of radial velocity components wherein the length of the first non-magnetic cylinder is approximately equal to an integral number of wave lengths of the scallop frequency 失效
用于产生没有径向速度分量的电子束的电子枪结构，其中第一非磁性圆柱体的长度近似等于扇贝频率的波长的整数个数

  • Patent Title: Electron gun structure for producing an electron beam free of radial velocity components wherein the length of the first non-magnetic cylinder is approximately equal to an integral number of wave lengths of the scallop frequency
  • Patent Title (中): 用于产生没有径向速度分量的电子束的电子枪结构，其中第一非磁性圆柱体的长度近似等于扇贝频率的波长的整数个数
  • Application No.: US11183161
    Application Date: 1961-05-22
  • Publication No.: US3215890A
    Publication Date: 1965-11-02
  • Inventor: BLUM ASHER S
  • Applicant: ZENITH RADIO CORP
  • Assignee: Zenith Radio Corp
  • Current Assignee: Zenith Radio Corp
  • Priority: US11183161 1961-05-22
  • Main IPC: H01J3/02
  • IPC: H01J3/02
Electron gun structure for producing an electron beam free of radial velocity components wherein the length of the first non-magnetic cylinder is approximately equal to an integral number of wave lengths of the scallop frequency
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