Double-Convex (DCX) Lenses are with two outward curved surfaces, a positive focal length and are useful for 1:1 imaging and in multi-element systems.

Material: Optical Glass, CaF2, Fused Silica, Ge, Sapphire……

Size Range: 1-150mm

Dimension Tolerance: +/-0.02mm

Surface Quality: 40/20-10/5

Radius Tolerance: +/-0.1%

Irregularity: 1/4-1/10 Lambda

Centering: <1 arcmin

EFL Tolerance: +/-1%

Clear Aperture: >95%

Coating: AR, BBAR

http://www.visopto.com/