Available from Kaleido Technology ApS are high-precision molded-glass aspheric lenses that range in diameter from 3 to 50 mm. Lens types offered include spherical, aspherical, cylindrical, aspheric cylindrical and free-form. They may be planoconvex, planoconcave, biconvex, biconcave or convex-concave. Typical surface quality tolerances are surface roughness of <5 nm, form error of <1 fringe and axial alignment of <3 arc min. Applications include bar-code scanning, laser optics and graphics.