Lenses
Plano-Convex Lens: 50.8mm Dia. × 400mm FL, BK7, Uncoated
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Availability: 2 in stock
Product Specifications
Lens Type | Plano-Convex |
---|---|
Product Catalogue Number | PCX50BK7N0400 |
Wavelength Range: (nm) | 350 - 2200 |
Coating | Uncoated |
Material | BK7 |
Side 1 Type | Convex |
Side 2 Type | Plane |
Diameter (ϕ): (mm) | 50.80 |
Diameter Tolerance: (mm) | ± 0.05 |
Focal Length: (mm) | 400 |
Effective Focal Length (EFL): (mm) | 402.53 |
Back Focal Length (BFL): (mm) | 393.8 |
Focal Length Tolerance: (%) | ± 1 |
Centre Thickness (Tc): (mm) | 10.0 |
Edge Thickness (Te): (mm) | 8.7 |
Thickness Tolerance: (mm) | ± 0.1 |
Centering (arcmin) | <2 |
Side 1 Radius: (mm) | 196.9 |
Side 2 Radius: (mm) | Infinity |
Surface Quality (Scratch/Dig) | 40/20 |
Power (peak to valley) | 2λ |
Surface Irregularity | λ/3 |
f Number | 7.9 |
Clear Aperture: (mm) | 49.8 |
Numerical Aperture | 0.1 |
Bevel | 0.5 mm × 45 degree |
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