Plano Concave lenses have one flat and one inward curved surface. PCV lenses have a negative focal length and are used for
image reduction or to spread light.Contact Supplier
Diameter Tolerance | +0.0/-0.02mm |
Center Thickness Tolerance | ±0.02 mm |
Focal Length Tolerance | ±2% |
Surface Quality | 60/40, 40/20 20/10or better |
Material | BK7, UVFused silica, Ge,Si,CaF2, ZnSe, |
Clear Aperture | >90% |
Centering | <30 arc sec |
Coating | Custom |
Bevel | Protective bevel as needed |