field lens

noun

: the lens in a compound eyepiece that is nearer the objective

Examples of field lens in a Sentence

Recent Examples on the Web
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The telescope’s visible-light camera sensitivity is on par with the Hubble Space Telescope’s wide-field lens, but with an exponentially larger vantage. Andrew Paul, Popular Science, 25 June 2026

Word History

First Known Use

1819, in the meaning defined above

Time Traveler
The first known use of field lens was in 1819

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Cite this Entry

“Field lens.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/field%20lens. Accessed 4 Jul. 2026.

Medical Definition

field lens

noun
: the lens in a compound eyepiece that is nearer the objective
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