CH314137A - Pole piece for magnetic electron lenses - Google Patents

Pole piece for magnetic electron lenses

Info

Publication number: CH314137A
Authority: CH; Switzerland
Prior art keywords: pole piece; electron lenses; magnetic electron; magnetic; lenses
Prior art date: 1952-09-09

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.)

1952-09-09

Filing date

1953-09-07

Publication date

1956-05-31

1953-09-07 Application filed by Philips Nv filed Critical Philips Nv

1956-05-31 Publication of CH314137A publication Critical patent/CH314137A/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, ion-optical arrangement
- H01J37/10—Lenses
- H01J37/14—Lenses magnetic

Landscapes

Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Electron Beam Exposure (AREA)

CH314137D 1952-09-09 1953-09-07 Pole piece for magnetic electron lenses CH314137A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL314137X		1952-09-09

Publications (1)

Publication Number	Publication Date
CH314137A true CH314137A (en)	1956-05-31

Family

ID=19783746

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH314137D CH314137A (en)	1952-09-09	1953-09-07	Pole piece for magnetic electron lenses

Country Status (7)

Country	Link
US (2)	US2910589A (en)
BE (1)	BE522628A (en)
CH (1)	CH314137A (en)
DE (1)	DE927524C (en)
FR (1)	FR1106673A (en)
GB (1)	GB744647A (en)
NL (1)	NL85195C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3019876A (en) *	1960-01-06	1962-02-06	Rabinow Engineering Co Inc	Fast response magnetic friction clutch
US3396299A (en) *	1964-06-15	1968-08-06	Jeol Ltd	Magnetic flux leakage guide for magnetic electron lenses
US4469948A (en) *	1982-01-26	1984-09-04	The Perkin-Elmer Corp.	Composite concentric-gap magnetic lens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1132016A (en) *	1912-01-24	1915-03-16	John g burns	Means for forming zones of varying and variable strengths in magnetic fields.
US1121859A (en) *	1912-11-08	1914-12-22	Electric Weighing Company	Composite magnetizable material.
US2053162A (en) *	1936-02-18	1936-09-01	Gen Electric	Core for dynamo-electric machines
US2370627A (en) *	1940-10-16	1945-03-06	Rca Corp	Magnetic lens
US2418432A (en) *	1944-05-01	1947-04-01	Rca Corp	Magnetic electron lens system
US2719240A (en) *	1946-03-14	1955-09-27	Laurence R Walker	Cathode structure

0
- BE BE522628D patent/BE522628A/xx unknown
- US US927524D patent/UST927524I4/en active Pending
- NL NL85195D patent/NL85195C/xx active
1953
- 1953-09-04 GB GB24508/53A patent/GB744647A/en not_active Expired
- 1953-09-06 DE DEN7703A patent/DE927524C/en not_active Expired
- 1953-09-07 CH CH314137D patent/CH314137A/en unknown
- 1953-09-07 FR FR1106673D patent/FR1106673A/en not_active Expired
- 1953-09-08 US US378990A patent/US2910589A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE927524C (en)	1955-05-12
FR1106673A (en)	1955-12-21
US2910589A (en)	1959-10-27
NL85195C (en)
GB744647A (en)	1956-02-08
BE522628A (en)
UST927524I4 (en)

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