Optical Instrument Lens

Features

Specifications

• Diameter:
  1.102 inches
• Axial Thickness:
  0.337 inches and 0.081 inches
• Compound Lensaxial Thickness:
  0.418 inches
• Compound Lens Edge Thickness:
  0.250 inches
• Equivalent Focal Length:
  1.849 inches
• Back Focal Length:
  1.636 inches
• Refraction Index:
  1.6109 and 1.6479
• Abbe Constant:
  57.200 and 33.800
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double convex and plano-concave
• Element Left Surface Radius:
  1.355 inches
• Element Right Surface Radius:
  1.255 inches
• Material:
  Glass, optical, mil-g-174, class 1, grade c
• Material Specification:
  Mil-g-174, class 1, grade c military specification single material response
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-518-2960