Type:

-Plano-Convex Spherical Lenses;

-Plano-Concave Spherical Lenses;

-Bi-Convex Spherical Lenses;

-Bi-Concave Spherical Lenses;

-Achromatic Lenses;

Material: BK7A; UV Fused Silica; Silicon; Ge; CaF2; MgF2; ZnSe, etc

Surface Flatness: < lambda/10@633nm

Surface Quality: 60/40; 40/20; 20/10; 10/5

Dimension Tolerance: < +0. 00/-0. 20mm

Centration Error: < 3 arcmin

Focal Length Tolerance: < +0. 5%/-0. 5%

Clear Aperture: > 85%

Bevel: 0. 3mm×45°

All of these specifications are just for reference. If you have other requirements, please contact with us.