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Specifications

Zinc Selenide Plano-concave Spherical Lenses  Size and coating of the lenses can be customized according to users’ needs
 
Material:Zinc Selenide
Design Wavelength:10.6μm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0/-0.1mm
Thickness Tolerance:±0.2mm
Surface Accuracy:λ/2@632.8nm
Surface Quality:60-40
Centration:<3'
Clear Aperture:>80%
Bevelling:<0.2×45°
Coating:IR AR Coating 8-12μm
 
Model
Dia(mm)
EFL(mm)
R(mm)
BFL(mm)
Tc(mm)
Te(mm)
05C2525
25.40
-25.40
-35.63
-26.23
2.00
4.30
05C2550
25.40
-50.00
-70.13
-50.83
2.00
3.20
05C2575
25.40
-75.00
-105.20
-75.83
2.00
2.80
05C25100
25.40
-100.00
-140.27
-100.83
2.00
2.60
05C25200
25.40
-200.00
-280.53
-200.83
2.00
2.30