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公开(公告)号:DE2824820A1
公开(公告)日:1978-12-07
申请号:DE2824820
申请日:1978-06-06
Applicant: RCA CORP
Inventor: BORTFELD DAVID PAUL , COHEN ROGER WOLFE , DEWOLF DAVID ALTER
Abstract: A color cathode ray tube includes an electron gun having a distributed lens system which yields smaller spot sizes on a phosphor screen at intermediate and higher cathode currents when compared with prior art electrostatic lenses having similar diameters. The lens establishes an essentially exponentially increasing potential distribution along the electron beam path.