Lenses/Positive Cylindrical Lenses/ optical mouse lens

Specifications

Positive Cylindrical Lenses

1.Material                              BK7, FS, UVFS, CaF2, ZnSe, Si, Ge

2.Diameter Tolerance         +0.0, -0.15 mm

3.Thickness Tolerance          +/-1.0 mm

4.Focal Length Tolerance    +/- 3%

5.Centration                           <3 arc minutes

6.Clear Aperture                   >90%

7.Chamfer                               0.25 mm   45o

8.Surface Figure                    λ/4  632.8 nm

9.Surface Quality                  40-20 scratch & dig

10.Design wavelength         632.8 nm

11.AR coatings                      None.