axicon

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noun ax·i·con \ˈak-sə-ˌkän\

Definition of axicon

plural

axicons

  1. :  an object resembling an optical lens with a conical surface that has no definite focal point On a trip to Russia, Milchberg discovered that scientists there were using an odd, funnel-shaped “axicon” lens that brought laser beams into an elongated, needle-like focus instead of the sharp point that conventional lenses produce. — Curt Suplee, Washington Post, 11 Sept. 1995

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Origin and Etymology of axicon

axi- + icon


First Known Use: 1954


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the point at which something begins

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