fresnel : Idioms & Phrases

Index

augustin jean fresnel

  • noun French physicist who invented polarized light and invented the Fresnel lens (1788-1827)
    Fresnel.
WordNet

fresnel lamp

Fres`nel" lamp", Fres'nel' lan'tern (Also<
  • Fresnel lamp
  • Fresnel lantern
)
Etymology
From Fresnel the inventor, a French physicist.
Definitions
  1. A lantern having a lamp surrounded by a hollow cylindrical Fresnel lens.
Webster 1913

fresnel lens

  • noun lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
WordNet
Fres`nel" lens"
Etymology
See Fresnel lamp.
Definitions
  1. (Optics) See under Lens.
Webster 1913