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E-32-935 40mm Dia. x 250mm FL, MgF2 Coated, Achromatic Doublet Lens

Fosco Connect Part No.: E-32935

  • $ 255.00 or



E-32935 40mm Dia. x 250mm FL, MgF2 Coated, Achromatic Doublet Lens

Product MGF2 Coating Curve

Product ISO

Product Drawing

Diameter (mm): 40.00 +0.0/-0.025
Effective Focal Length EFL (mm): 250.00
Focal Length Tolerance (%): ±2
Back Focal Length BFL (mm): 244.32
Focal Length Specification Wavelength (nm): 587.6
Clear Aperture CA (mm): 39.00
Centering (arcmin): <1
Center Thickness CT 1 (mm): 8.00
Center Thickness CT 2 (mm): 4.50
Center Thickness Tolerance (mm): ±0.2
Radius R1 (mm): 156.00
Radius R2 (mm): -108.70
Radius R3 (mm): -313.64
Edge Thickness ET (mm): 10.57

Surface Quality: 40-20
f/#: 6.25
Numerical Aperture NA: 0.08
Coating: MgF2 (400-700nm)
Coating Specification: Ravg ≤1.75% @ 400 - 700nm
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): 400 - 700
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