fresnel lens

1. 1.

   lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length

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Questions about fresnel lens

What does fresnel lens mean?

fresnel lens means "lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length".

Is fresnel lens a common word?

fresnel lens is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.