Optical Instrument Lens

Features

Specifications

• Diameter:
  1.024 inches
• Axial Thickness:
  0.126 inches and 0.110 inches
• Compound Lensaxial Thickness:
  0.236 inches
• Compound Lens Edge Thickness:
  0.210 inches
• Equivalent Focal Length:
  17.094 inches
• Back Focal Length:
  17.060 inches
• Front Focal Length:
  17.092 inches
• Refraction Index:
  1.5170 and 1.6170
• Abbe Constant:
  -64.200 and 36.600
• Compound Lens Style:
  Dialyte
• Individual Lens Style:
  Double convex and meniscus diverging
• Material:
  Glass, optical, mil-g-174, grade b, type 517-642 and glass, optical, mil-g-174, grade b, type 617-366
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-450-1737