Cylindrical lenses are used to increase the viewing angle in one direction in anamorphic optics, to form a linear front of light propagation, to shape a beam of various types, to correct the astigmatism of the optical system, etc.
|Parameters||Achievable values *|
|Surface finish||Ñlass III|
|Surface irregularity N / ∆N, rings||5/2|
|Thickness irregularity, mm||0.02|
|Diameter tolerance, mm||0.05|
|Thickness tolerance, mm||0.05|
|Focal length tolerance||0.5%|
* Determined by material and set of parameters.