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Bi Concave Lens

Bi Concave Lens

The double concave lenses with the negative focal length, these lenses are used in Beam Expanders, optics image, laser system and so on.

Sunday— Bi Concave Lens Specifications

Structure: Bi Concave Lens

Material: Optical glass, UVFS, Germanium, Silicon, CaF2, MgF2, ZnSe ZnS, Sapphire

Diameters Available: 0.5mm to 600mm

Diameter Tolerance: +0.00/-0.01mm or customer design

Surface Quality: 10-5

Surface Irregularity: λ/10 PV or customer design

Thickness tolerance: +0/-0.01mm

Clear Aperture: >90% of Diameter

Chamfer: 0.05-0.5mmx45degree

Centeration: <10 arcsec

Coating: Single Mag2, Multiple Layers AR Coating

A: 350-650nm

B: 650-1050nm

C: 1050-1585nm

D: Customer Design


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