Optical Instrument Lens

Features

Specifications

• Diameter:
  0.826 inches
• Axial Thickness:
  0.219 inches and 0.079 inches
• Compound Lensaxial Thickness:
  0.298 inches
• Compound Lens Edge Thickness:
  0.221 inches
• Equivalent Focal Length:
  2.367 inches
• Back Focal Length:
  2.209 inches
• Refraction Index:
  1.5725 and 1.6890
• Abbe Constant:
  57.400 and 30.900
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double convex and plano-concave
• Element Left Surface Radius:
  1.4960 inches
• Element Right Surface Radius:
  1.0920 inches
• Material:
  Glass, optical, jan-g-174, grade c
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-759-4047