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magnetic lens
noun
- Physics. an electron lens using magnetic fields for focusing an electron beam.
magnetic lens
noun
- a set of magnets, esp electromagnets, used to focus or defocus a beam of charged particles in an electron microscope, particle accelerator, or similar device
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˜yÐÄvlog History and Origins
Origin of magnetic lens1
First recorded in 1915–20
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Example Sentences
Examples have not been reviewed.
It also has the best magnetic lens cap I have ever seen.
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The lime green plastic mount isn’t the nicest-looking, but it does allow for each magnetic lens to be snapped on and off with ease.
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Some of them pass through a thin metal window in the vacuum-tank wall and are focused by a magnetic lens into a beam.
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