E-45-090 3mm Dia. x 9mm FL, MgF2 Coated, Achromatic Doublet Lens
E-45090 3mm Dia. x 9mm 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): 3.00 +0.0/-0.025
Effective Focal Length EFL (mm): 9.00
Focal Length Tolerance (%): ±2
Back Focal Length BFL (mm): 7.79
Focal Length Specification Wavelength (nm): 587.6
Clear Aperture CA (mm): 2.7
Centering (arcmin): <3
Center Thickness CT 1 (mm): 1.47
Center Thickness CT 2 (mm): 1.03
Center Thickness Tolerance (mm): ±0.2
Radius R1 (mm):5.26
Radius R2 (mm):-3.98
Radius R3 (mm):-12.05
Edge Thickness ET (mm): 2.19
Surface Quality: 20-10
f/#: 3.00
Numerical Aperture NA: 0.17
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