25 mm FL optical glass convex cylindrical lens

Cylindrical lens has a plano-concave and plano-convex structure, both for diverging or converging beams.

The base materials of cylindrical lens have N-BK7 glass, UV fused silica glass, CaF2 infrared glass material, and all materials can be selected from uncoated or AR-coated.

Cylindrical lens is used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line. Cylindrical lens are available in plano-concave cylinder lens, plano-convex cylindrical lens or meniscus cylinder lens configurations. Plano-Concave Cylinder lens has a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylindrical lens has a positive focal length, which makes the cylindrical lens is ideal for collecting and focusing light for many imaging applications. 

Other types of Cylindrical lens such as double-convex cylinder lens,double-concave cylinder lens,meniscus cylinder lens,Rod cylinder lens,special cylindrical lens available upon request.

Specification of our optical plano-concave cylinder lens, plano-convex cylindrical lens or meniscus cylinder lens like followings:
*Material BK7 or other optical materials 
*Dimension Tolerance +0.0~-0.1mm 
*Center Thickness +/-0.1mm 
*Focal Length Tolerance+/-1%
*Surface Quality:20/10 
*Surface Figure λ/2 at 633nm on plano side 
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical 
*Coating Optional