Cylindrical Lens (Planoconvex Cylindrical Lens)

The typical application of a planoconvex cylindrical lens is for one-dimensional magnification or compression. Traditional spherical lenses act symmetrically on incident light in two directions, whereas cylindrical lenses only affect the light in one direction. 

A typical application is beam shaping using a pair of cylindrical lenses to reshape astigmatic beams. A pair of positive cylindrical lenses can be used to collimate and circularize the output of laser diodes. Another possible application is to focus a divergent beam onto a detector array using a single cylindrical lens. 

To minimize spherical aberration, when converging a collimated beam into a line, the collimated light should be incident on the curved surface of the lens, and when dealing with a collimated line source, the line source should be incident on the flat surface of the lens. 

Material: H-K9L, ZF7

Dimensional tolerance: ±0.1mm

Focal length tolerance: ±1% @635nm

Coating: T@400nm-700nm >99%

Clear aperture: 100% (no chamfer)

Decentration:  ＜3arc min

Surface figure: λ/2 @632.8nm

Surface roughness: 60-40