E-22-492 25mm Dia. x 60mm FL, NIR I Coated, Achromatic Lens
E-22492 25mm Dia. x 60mm FL, NIR I Coated, Achromatic Lens
Specifications
Diameter (mm): 25.00 +0.0/-0.025
Effective Focal Length EFL (mm): 60.00
Focal Length Tolerance (%): ±2
Back Focal Length BFL (mm): 52.96
Focal Length Specification Wavelength (nm): 880.00
Clear Aperture CA (mm): 24.00
Centering (arcmin): <1
Center Thickness CT 1 (mm): 8.00
Center Thickness CT 2 (mm): 4.00
Center Thickness Tolerance (mm): ±0.2
Radius R1 (mm): 36.27
Radius R2 (mm): -33.80
Radius R3 (mm): -248.86
Edge Thickness ET (mm): 9.46
f/#: 2.4
Numerical Aperture NA: 0.21
Coating: NIR I (600-1050nm)
Coating Specification: Ravg ≤0.5% @ 600 - 1050nm
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): 600 - 1050