CH314474A - Pole piece for a magnetic electron lens - Google Patents

Pole piece for a magnetic electron lens

Info

Publication number: CH314474A
Authority: CH; Switzerland
Prior art keywords: pole piece; electron lens; magnetic electron; magnetic; lens
Prior art date: 1952-09-16

Application number

Other languages

German (de)

Inventor

Cornelis Van Dorsten Adrianus

Original Assignee

Philips Nv

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.)

1952-09-16

Filing date

1953-09-14

Publication date

1956-06-15

1953-09-14 Application filed by Philips Nv filed Critical Philips Nv

1956-06-15 Publication of CH314474A publication Critical patent/CH314474A/en

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
- H01J37/153—Electron-optical or ion-optical arrangements for the correction of image defects, e.g. stigmators
- 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
- 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
- H01J37/141—Electromagnetic lenses

Landscapes

Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Physics & Mathematics (AREA)
Electromagnetism (AREA)
Lenses (AREA)
Electron Beam Exposure (AREA)
Electron Tubes For Measurement (AREA)

CH314474D 1952-09-16 1953-09-14 Pole piece for a magnetic electron lens CH314474A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL314474X		1952-09-16

Publications (1)

Publication Number	Publication Date
CH314474A true CH314474A (en)	1956-06-15

Family

ID=19783758

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH314474D CH314474A (en)	1952-09-16	1953-09-14	Pole piece for a magnetic electron lens

Country Status (7)

Country	Link
US (1)	US2880324A (en)
BE (1)	BE522811A (en)
CH (1)	CH314474A (en)
DE (1)	DE1006984B (en)
FR (1)	FR1083345A (en)
GB (1)	GB738121A (en)
NL (2)	NL172506B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3300681A (en) *	1965-10-22	1967-01-24	Gen Electric	Adjustable magnet for a magnetron
US3787696A (en) *	1972-03-15	1974-01-22	Etec Corp	Scanning electron microscope electron-optical column construction
FR2597259A1 (en) *	1986-04-15	1987-10-16	Thomson Csf	ELECTRONIC BEAM DEVICE FOR PROJECTING THE IMAGE OF AN OBJECT ON A SAMPLE

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE904095C (en) *	1940-06-01	1954-02-15	Siemens Ag	Electron lens serving as an objective for an electron microscope
US2356535A (en) *	1940-08-31	1944-08-22	Ruska Ernst	Electronic lens
US2295403A (en) *	1940-11-15	1942-09-08	Rca Corp	Apertured electron lens and method of alignment
DE898217C (en) *	1943-01-27	1953-11-30	Siemens Ag	Arrangement for changing the enlargement achievable with a magnetic electron lens
US2369782A (en) *	1943-04-01	1945-02-20	Rca Corp	Electron lens system
NL89013C (en) *	1944-05-31
GB609480A (en) *	1944-09-30	1948-10-01	Otto Ernst Heinrich Klemperer	Improvements in or relating to a electron discharge apparatus in which a flattened or ribbon-shaped electron beam is employed
US2567674A (en) *	1949-11-08	1951-09-11	Rca Corp	Velocity modulated electron discharge device
US2587942A (en) *	1949-12-27	1952-03-04	Leitz Ernst Gmbh	Electronic optical correction mechanism for magnetic lenses
US2679018A (en) *	1950-06-30	1954-05-18	Rca Corp	Magnetic electron lens pole piece

0
- NL NL85499D patent/NL85499C/xx active
- NL NLAANVRAGE7313365,A patent/NL172506B/en unknown
- BE BE522811D patent/BE522811A/xx unknown
1953
- 1953-09-11 US US379716A patent/US2880324A/en not_active Expired - Lifetime
- 1953-09-11 GB GB25187/53A patent/GB738121A/en not_active Expired
- 1953-09-12 DE DEN7734A patent/DE1006984B/en active Pending
- 1953-09-14 CH CH314474D patent/CH314474A/en unknown
- 1953-09-14 FR FR1083345D patent/FR1083345A/en not_active Expired

Also Published As

Publication number	Publication date
US2880324A (en)	1959-03-31
DE1006984B (en)	1957-04-25
GB738121A (en)	1955-10-05
NL172506B (en)
NL85499C (en)
BE522811A (en)
FR1083345A (en)	1955-01-07

Publication	Publication Date	Title
FR1095967A (en)	1955-06-08	Magnetic switch
CH336867A (en)	1959-03-15	Magnetic switching arrangement
CH321490A (en)	1957-05-15	Slider for zippers
CH324520A (en)	1957-09-30	Magnetic switching arrangement
FR1096769A (en)	1955-06-24	Magnetic switch
CH325278A (en)	1957-10-31	electron microscope
FR1071890A (en)	1954-09-06	Magnetic separator
CH315808A (en)	1956-09-15	Magnetic separator
CH316013A (en)	1956-09-15	Magnetic electron lens
CH310959A (en)	1955-11-15	Magnetic electron lens.
FR1172013A (en)	1959-02-04	Magnetic core rocker
FR1113321A (en)	1956-03-28	Magnetic amplifiers
CH314137A (en)	1956-05-31	Pole piece for magnetic electron lenses
AT183243B (en)	1955-09-26	Magnetic recorder
CH315730A (en)	1956-08-31	electron microscope
FR1096469A (en)	1955-06-21	Coil
FR1106676A (en)	1955-12-21	Magnetic modulator
AT178387B (en)	1954-05-10	Magnetic electron lens
FR1154152A (en)	1958-04-03	Magnetic blow-off switch
DE1250016B (en)	1968-03-14	Magnetic socket for a magnetic tube
FR1113292A (en)	1956-03-26	Magnetic amplifiers
FR1089808A (en)	1955-03-22	Magnetic breaker
AT181473B (en)	1955-03-25	magnetic valve
FR1090894A (en)	1955-04-05	Magnetic contactor
FR1162012A (en)	1958-09-08	Magnetic coupling