Plano Concave Lenses

plano concave lens

Plano concave lenses have one concave surface, and one flat surface on the other.Plano concave lenses have positive focal length and can be used for beam expansion, light projection, or for expanding an optical system’s focal length and etc.

Material: N-BK7,Fused Silica,N-SF11,CaF2,ZnSe and etc

Effective Focal Length Tolerance:   ± 1%

Surface Quality: 60-40,40 – 20 (scratch-dig)

Diameter Tolerance:  +0.0, -0.2mm

Clear Aperture:        > 90% of Diameter

Centering Tolerance:       ≤3 arc min

Coating:   Uncoated / Single layer MgF2 /Broadband AR

N-BK7 Plano Concave Lenses(Uncoated)
Item numberDiameter(mm)Focal length(mm)Radius of curvature(mm)Centre thickness(mm)Edge thickness(mm)
PLC19.0-27.0-13.92.02.7
PLC212.7-25-12.93.04.7
PLC325-50-25.73.56.7
PLC425.4-75-38.63.513
PLC550.8-100-51.54.010.7
Fused Silica Plano Concave Lenses(with 350 - 700 nm AR Coating )
Item numberDiameter(mm)Focal length(mm)Radius of curvature(mm)Centre thickness(mm)Edge thickness(mm)
PLC612.7-25.0-11.53.04.8
PLC725.4-30-13.83.011.1
PLC825.4-75-34.53.55.9