E-22-993 15mm Dia., 0.40 Numerical Aperture, 600-1050nm Coated, Precision Aspheric Lens
E-22993 15mm Dia., 0.40 Numerical Aperture, 600-1050nm Coated, Precision Aspheric Lens
Diameter (mm): 15.00 +0.00/-0.025
Effective Focal Length EFL (mm): 18.75 @ 587.6nm
Numerical Aperture NA: 0.40
Back Focal Length BFL (mm): 14.32
Coating: NIR+ (600-1050nm)
Coating Specification:
Ravg <0.5% @ 600 - 1050nm @ ±30° AOI
Rabs <1.5% @ 600 - 1050nm @ ±30° AOI
Rabs <1.5% @ 600 - 1050nm @ ±30° AOI
Centering (arcmin): <3
Surface Quality: 40-20
Clear Aperture CA (mm): 13.50
Edge Thickness ET (mm): 6.10
Center Thickness CT (mm): 8.00 ±0.10
f/#: 1.25
Bevel: Protective bevel as needed
Shape of Back Surface: Plano
Wavelength Range (nm): 600 - 1050
Conjugate Distance: Infinite
Asphere Figure Error, RMS @ 632.8nm: 0.4λ