Optical Instrument Lens

Features

Specifications

• Diameter:
  3.3858 inches
• Axial Thickness:
  0.4330 inches
• Compound Lensaxial Thickness:
  0.4330 inches
• Compound Lens Edge Thickness:
  0.3445 inches
• Equivalent Focal Length:
  17.772 inches
• Back Focal Length:
  17.398 inches
• Front Focal Length:
  17.772 inches
• Refraction Index:
  1.5169
• Abbe Constant:
  64.400
• Single Lens Style:
  Plano-convex
• Material:
  Glass, optical, jan-g-174, grade c
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-382-1259