Achromatic Lenses

  • Doublet lens, 40mm Dia.x167.7 EFL, Quality achromatic doublet lenses

Doublet lens, 40mm Dia.x167.7 EFL, Quality achromatic doublet lenses

PRODUCT DESCRIPTION

Part NumberLAD17040
Diameter (mm):40Diameter Tolerance (mm):+0.01/-0.10
Effective Focal Length EFL (mm):167.7Back Focal Length BFL (mm):164.28
Substrate:N-BK7/N-SF2 or or equivalentSurface Quality:60-40
Power (P-V) @ 632.8nm:1.5λIrregularity (P-V) @ 632.8nm:0.25 Waves
Focal Length Tolerance (%):±2%Centering (arcmin):< 3 minutes
Center Thickness CT (mm):10.3Center Thickness Tolerance (mm):±0.2
Edge Thickness ET (mm):7.5Clear Aperture CA (mm):>= 90% of Diameter
Type:Achromats Bevel: Protective bevel as needed


Doublet lens, 40mm Dia.x167.7 EFL, Quality achromatic doublet lenses