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  • Doublet lens, 25.4mm Dia.x80 EFL, Quality achromatic doublet lenses

Doublet lens, 25.4mm Dia.x80 EFL, Quality achromatic doublet lenses

製品の詳細

Part NumberLAD8025.4
Diameter (mm):25.4Diameter Tolerance (mm):+0.01/-0.10
Effective Focal Length EFL (mm):80Back Focal Length BFL (mm):75.49
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):8.2Center Thickness Tolerance (mm):±0.2
Edge Thickness ET (mm):5.8Clear Aperture CA (mm):>= 90% of Diameter
Type:Achromats Bevel: Protective bevel as needed


Doublet lens, 25.4mm Dia.x80 EFL, Quality achromatic doublet lenses