Chinese
KL23-012-020 UV Grade Fused Silica Plano-Concave Lenses
Diameter:12.7mm; focallength:-20mm
Delivery Time : 2-3 weeks
US$42.68
In stock
SKU
KL313
Material:UV Grade Fused Silica
Design Wavelength:587.6nm; n=1.45848
Diameter Tolerance:+0.0 /-0.1mm
Center Thickness Tolerance:±0.2mm
Surace Figure:λ/4 @632.8nm
focallength Tolerance:±2%
Centering Tolerance:3 arc minutes
Surface Quality:2~3 level
Bevel:0.2mmX45°
Coatings:Please see the coating list
| Drawing |  |
|---|---|
| Diameter Dia(mm) | 12.7 |
| Effective focal length EFL(mm) | -20 |
| Back Focus length BFL(mm) | -21.029 |
| Radius R1(mm) | -9.17 |
| Center Thickness CT(mm) | 1.5 |
| Edge Thickness ET(mm) | 4.05 |
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