Cylindrical Lenses

 Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, tretching a point of light into a line, they are widely used in bar code scanning, projection optics systems, laser measurement systems and holography.
Cylindrical lenses are available in either plano-concave or plano-convex configurations from Lasertec, Plano-concave lenses have a negative focal length and are used for image reduction or to spread light Plano-convex lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications.

Cylindrical Lens BK7 Fused Silica
Cylindrical Lens
BK7 Fused Silica


Hign Precision
Schott N-BK7, H-K9L, Fused silica, Si, CaF2, Sapphire
Design Wavelength
Design Index (BK7)
1.51680 for BK7, 1.45846 for Fused Silica
Diameter Tolerance
+0.0, 0.15mm
+0.0, 0.05mm
Paraxial Focal Length
Surface Quality
60-40 scratch and dig
10-5 scratch and dig
Surface Irregularity
< λ/4
< λ/8
Protective Bevel
0.25 + 0.25, -0.0mm
0.2 ± 0.1mm