Cylindrical lens
Optimax Systems

A cylindrical lens contains an optical surface that has a radius in one direction and is flat in the orthogonal direction. A cylinder will have one or more cylindrical surface. Cylindrical optics are used in medical instruments, graphic arts, laser printers and semiconductor processing equipment.

Specifying Cylinders
Specifying a cylindrical optic begins with the cylinder radius and includes a tolerance for the radius (power) axis as well as the plano (zero power) axis. Irregularity and slope may also be defined. Decentration or wedge in both axes should be specified, as well as alignment of the optical axis with the mechanical axis. Plano or spherical surfaces should have tolerances similar to any plano or spherical surface.