Axicons (conical lenses) are famous due to their ability to their transform a collimated Gaussian beam into an approximation of non-diffracting Bessel beam in the near-field and ring-shaped beam in the far-field. Most often they are used in tandem with other types of lenses. 4Lasers provide plano-convex and plano-concave types of conical lenses. These lenses feature one convex surface or one concave conical surface, respectively, while second surface is plano in both cases.

Main features

■ Fabricated from high-quality UV grade fused silica, BK7 glasses

■ Plano-convex and plano-concave designs

■ Regular and advanced grade axicons

■ Wide axicon apex angle selection

■ Antireflective coatings, customization available upon request