NL94737C - - Google Patents

Info

Publication number
NL94737C
NL94737C NL94737DA NL94737C NL 94737 C NL94737 C NL 94737C NL 94737D A NL94737D A NL 94737DA NL 94737 C NL94737 C NL 94737C
Authority
NL
Netherlands
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL94737C publication Critical patent/NL94737C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/10—Lenses
    • H01J37/14—Lenses magnetic
    • H01J37/143—Permanent magnetic lenses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Lenses (AREA)
  • Electron Beam Exposure (AREA)
NL94737D 1950-08-29 NL94737C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE710960X 1950-08-29

Publications (1)

Publication Number Publication Date
NL94737C true NL94737C (enrdf_load_stackoverflow)

Family

ID=6619728

Family Applications (1)

Application Number Title Priority Date Filing Date
NL94737D NL94737C (enrdf_load_stackoverflow) 1950-08-29

Country Status (4)

Country Link
US (1) US2761991A (enrdf_load_stackoverflow)
FR (1) FR1043174A (enrdf_load_stackoverflow)
GB (1) GB710960A (enrdf_load_stackoverflow)
NL (1) NL94737C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928004A (en) * 1954-08-27 1960-03-08 Hitachi Ltd Three stage electron lens system excited by permanent magnets
NL100357C (enrdf_load_stackoverflow) * 1955-10-04
US2919381A (en) * 1956-07-25 1959-12-29 Farrand Optical Co Inc Electron lens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973258C (de) * 1938-03-08 1959-12-31 Siemens Ag Magnetische Polschuhlinse kleiner Brennweite fuer elektronenoptische Vergroesserungen in Elektronenmikroskopen
BE437814A (enrdf_load_stackoverflow) * 1939-02-21
US2220973A (en) * 1939-03-31 1940-11-12 Rca Corp Electron microscope
US2503173A (en) * 1946-10-18 1950-04-04 Rca Corp Permanent magnetic electron lens system
US2533687A (en) * 1949-05-27 1950-12-12 Quam Nichols Company Magnetic focusing device

Also Published As

Publication number Publication date
US2761991A (en) 1956-09-04
GB710960A (en) 1954-06-23
FR1043174A (fr) 1953-11-06

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