electron lens

American

noun

a combination of static or varying electric and magnetic fields, used to focus streams of electrons in a manner similar to that of an optical lens.

electron lens British

noun

a system, such as an arrangement of electrodes or magnets, that produces a field for focusing a beam of electrons

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of electron lens

First recorded in 1930–35

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023