From Wikipedia, the free encyclopedia - View original article
An axicon is a specialized type of lens which has a conical surface. An axicon images a point source into a line along the optic axis, or transforms a laser beam into a ring. It can be used to turn a Gaussian beam into an approximation to a Bessel beam, with greatly reduced diffraction.
|This optics-related article is a stub. You can help Wikipedia by expanding it.|