Plano-Concave Axicon (Conical lens)

Altechna is able to offer and Plano-Concave Axicons of various dimensions and Apex angles.

Plano-concave axicons are made of a plano surface in combination with a concave conical surface. They are made of optically transparent or filter materials with polished opposite sides, ground edges and chamfers. An axicon made up of conical and flat surface produces a line image along the axis from a point light source. Due to fabrications process, a central hole is needed for concave conical surface. Hole diameter is typically 1 mm. Different coatings can be applied on the polished sides of axicons. The concave conical surface can be used as a mirror axicon.