KL32-040-090-VIS Negative Achromatic-Doublets Lenses
Diameter:40mm; focallength:-90mm
US$86.36
In stock
SKU
KL648
Diameter Tolerance:+0.0/-0.1mm
Center Thickness Tolerance:±0.2mm
Surace Figure:λ/4 @632.8nm
focallength Tolerance:±2%
Centering Tolerance:3~5arc minutes
Surface Quality:3~4 level
Bevel:0.2mmX45°
Coatings:VIS Ravg<0.5% @400~700nm
Drawing | ![]() |
---|---|
Diameter Dia(mm) | 40 |
Effective focal length EFL(mm) | -90 |
Back Focus length BFL(mm) | -92.84 |
Center Thickness CT(mm) | 8 |
Edge Thickness ET(mm) | 13.37 |
Lensens A | BK7 |
Lenses B | N-SF5 |
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