H - Electricity – 01 – J
Patent
H - Electricity
01
J
358/10
H01J 37/26 (2006.01) H01J 37/04 (2006.01)
Patent
CA 1110781
ABSTRACT: A switchable auxiliary lens is arranged in the vicinity of the objective lens of an electron microscope to enable switching between TEM mode and STEM mode. The auxiliary lens is formed notably by an interruption in the magnetic circuit off one of the poles of the main lens, possibly in con- junction with an electromagnetic coil which can be excited in a commutatable manner. -15-
304092
Le Poole Jan B.
Rakels Christiaan J.
Van Der Mast Karel D.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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