Optical Cylindrical lens Optical Glass Plano Convex Cylindrical Lens A Optical glass Cylinder Lenses is used to condense light in one axis.  A positive cylindrical lens is able to create a line image from a point of light, to change the aspect ratio of an image or to focus collimated input light to a line. Plano- convex cylindrical lenses are typically used for illumination of slit and line detector arrays, laser projection, laser line focussing and anamorphic beam shaping. Specification MaterialOptical glass/ Fused silica/ sapphire   etc. Dimension2mm~300mm Dimension   tolerance±0.05mm~±0.1mm Centre   Thickness2mm~20mm Surface   quality60/40 40/20 20/10 Surface   accuracy /10@632.8nm532nm Clear   Aperture>85% dig diameter Centration