Barlow lens

noun

A diverging lens which, used in series with other optics in an optical system, increases the effective focal length of an optical system as perceived by all components that are after it in the system.

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Meanings

nounBarlow lens (plural Barlow lenses)

plural Barlow lenses

  1. astronomyA diverging lens which, used in series with other optics in an optical system, increases the effective focal length of an optical system as perceived by all components that are after it in the system.

    Synonyms: Barlow

Synonyms & antonyms

nounA diverging lens which, used in series with other optics in an optical system, increases the effective focal length of an optical system as perceived by all components that are after it in the system.

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Origin

Named after British mathematician and physicist Peter Barlow (1776–1862).

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Cite this entry
APA

Barlow lens. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Barlow%20lens

MLA

“Barlow lens.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Barlow%20lens. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Barlow lens,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Barlow%20lens.

Source: Barlow lens on Wiktionary, CC BY-SA 4.0.