Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Original Assignee
Siemens and Halske AG
Publication date
Application grantedgrantedCritical
Publication of DE840289CpublicationCriticalpatent/DE840289C/en
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)
Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography
(AREA)
Glass Compositions
(AREA)
Percussion Or Vibration Massage
(AREA)
Claims (1)
Zu der Patentschrift 840 300Regarding patent specification 840 300Kl. 34 g Gr. 14 02Kl. 34 g Gr. 14 02/fcb.1/fcb.1/ i/ iI iI i
DENDAT840289D
Bar magnet for magnetostatic lens arrangements
ExpiredDE840289C
(en)