Double-Concave (DCV) Lenses have two inward curved surfaces and a negative focal length. They are used for image reduction and to spread light.

They are also useful in a variety of applications involving beam expansion, beam projection, and expand the focal length of optical system.

Material: Optical Glass, CaF2, MgF2, Fused Silica/Ge, Sapphire……

Size Range: 0.5-500mm

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, VIS, NIR, HR, VIS, NIR

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