˜yÐÄvlog

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electron lens

noun

  1. 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

noun

  1. 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
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˜yÐÄvlog History and Origins

Origin of electron lens1

First recorded in 1930–35

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