- 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.
Origin of electron lens
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a system, such as an arrangement of electrodes or magnets, that produces a field for focusing a beam of electrons