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1.Electron lens for multiplier phototubes with very low spherical aberration 失效
Title translation: 具有非常低球面像差的乘法器光电管的电子透镜公开(公告)号:US2728014A
公开(公告)日:1955-12-20
申请号:US22299851
申请日:1951-04-26
Applicant: RCA CORP
Inventor: STOUDENHEIMER RICHARD G , ENGSTROM RALPH W
IPC: H01J43/08
CPC classification number: H01J43/08
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公开(公告)号:US2413222A
公开(公告)日:1946-12-24
申请号:US48900143
申请日:1943-05-29
Applicant: RCA CORP
Inventor: ENGSTROM RALPH W
IPC: H01J40/16
CPC classification number: H01J40/16 , Y10T428/1259 , Y10T428/12896
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公开(公告)号:US2421192A
公开(公告)日:1947-05-27
申请号:US48900043
申请日:1943-05-29
Applicant: RCA CORP
Inventor: ENGSTROM RALPH W
IPC: H01J40/16
CPC classification number: H01J40/16
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公开(公告)号:US2547379A
公开(公告)日:1951-04-03
申请号:US76926947
申请日:1947-08-18
Applicant: RCA CORP
Inventor: ENGSTROM RALPH W
IPC: G05F1/52
CPC classification number: G05F1/52
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公开(公告)号:US2506633A
公开(公告)日:1950-05-09
申请号:US70535646
申请日:1946-10-24
Applicant: RCA CORP
Inventor: ENGSTROM RALPH W , PIETENPOL WILLIAM J
IPC: H01J40/04
CPC classification number: H01J40/04
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公开(公告)号:US2818520A
公开(公告)日:1957-12-31
申请号:US47881854
申请日:1954-12-30
Applicant: RCA CORP
Inventor: ENGSTROM RALPH W , CRAIG MILTON E , THULER OSKAR W
IPC: H01J40/06
CPC classification number: H01J40/06
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公开(公告)号:CA489105A
公开(公告)日:1952-12-23
申请号:CA489105D
Applicant: RCA CORP
Inventor: PIETENPOL WILLIAM J , ENGSTROM RALPH W
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