A device for focusing a stream of electrons by means of electric or magnetic fields.
〔物理〕电子透镜
Example sentencesExamples
The technology, called aberration correction, fixes imperfections on the microscope's electron lenses.
An even better way is to step an acceleration or retardation voltage in an electron lens mounted in front of the energy analyser.
Ruska knew that electrons could be manipulated within a magnetic field, and in the late 1920s, he designed a magnetic coil that acted as an electron lens.
An electron lens is used for focusing electrons from a cathode to an anode.
Definition of electron lens in US English:
electron lens
noun
Physics
A device for focusing a stream of electrons by means of electric or magnetic fields.
〔物理〕电子透镜
Example sentencesExamples
Ruska knew that electrons could be manipulated within a magnetic field, and in the late 1920s, he designed a magnetic coil that acted as an electron lens.
The technology, called aberration correction, fixes imperfections on the microscope's electron lenses.
An electron lens is used for focusing electrons from a cathode to an anode.
An even better way is to step an acceleration or retardation voltage in an electron lens mounted in front of the energy analyser.