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E-49-945 20mm Dia. x 50mm FL, VIS 0° Coated, Achromatic Lens

Fosco Connect Part No.: E-49945

  • $ 163.00 or



E-49945 20mm Dia. x 50mm FL, VIS 0° Coated, Achromatic Lens

Product VIS 0 Coating Curve

Product ISO

Product Drawing

Diameter (mm): 20.00 +0.0/-0.025
Effective Focal Length EFL (mm): 50.00
Focal Length Tolerance (%): ±2
Back Focal Length BFL (mm): 46.93
Focal Length Specification Wavelength (nm): 587.6
Clear Aperture CA (mm): 19.00
Centering (arcmin): <1
Center Thickness CT 1 (mm): 4.80
Center Thickness CT 2 (mm): 2.00
Center Thickness Tolerance (mm): ±0.2
Radius R1 (mm): 36.92
Radius R2 (mm): -25.65
Radius R3 (mm): -77.89
Edge Thickness ET (mm): 4.78

Surface Quality: 40-20
f/#: 2.5
Numerical Aperture NA: 0.20
Coating: VIS 0° (425-675nm)
Coating Specification: Ravg ≤0.4% @ 425 - 675nm
Power (P-V) @ 632.8nm: 1.5λ
Irregularity (P-V) @ 632.8nm: λ/4
Bevel: Protective bevel as needed
Type: Achromatic Lens
Wavelength Range (nm): 425 - 675
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