E-45-136 12.5mm Dia. x 45mm FL, MgF2 Coated, Achromatic Doublet Lens
E-45136 12.5mm Dia. x 45mm FL, MgF2 Coated, Achromatic Doublet Lens
Diameter (mm): 12.50 +0.0/-0.025
Effective Focal Length EFL (mm): 45.00
Focal Length Tolerance (%): ±2
Back Focal Length BFL (mm): 42.52
Focal Length Specification Wavelength (nm): 587.6
Clear Aperture CA (mm): 11.50
Centering (arcmin): <1
Center Thickness CT 1 (mm): 3.50
Center Thickness CT 2 (mm): 1.50
Center Thickness Tolerance (mm): ±0.2
Radius R1 (mm): 26.82
Radius R2 (mm): -20.12
Radius R3 (mm): -61.38
Edge Thickness ET (mm): 3.94
Surface Quality: 40-20
f/#: 3.6
Numerical Aperture NA: 0.14
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