E-45-208 6.25mm Dia. x 10mm FL, MgF2 Coated, Achromatic Doublet Lens
E-45-208 6.25mm Dia. x 10mm FL, MgF2 Coated, Achromatic Doublet Lens
Product Family Description
- Designed for 0° Angle of Incidence
- Less Than 1.75% Reflectance Per Surface @ 400 - 700nm
Diameter (mm): 6.25 +0.0/-0.025
Effective Focal Length EFL (mm): 10.00
Focal Length Tolerance (%): ±2
Back Focal Length BFL (mm): 7.83
Focal Length Specification Wavelength (nm): 587.6
Clear Aperture CA (mm): 5.625
Centering (arcmin): <3
Center Thickness CT 1 (mm): 3.06
Center Thickness CT 2 (mm): 1.03
Center Thickness Tolerance (mm): ±0.2
Radius R1 (mm): 6.98
Radius R2 (mm): -4.35
Radius R3 (mm): -41.01
Edge Thickness ET (mm): 3.23
Surface Quality: 40-20
f/#: 1.6
Numerical Aperture NA: 0.31
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