Optical Instrument Lens

Features

Specifications

• Diameter:
  1.161 inches
• Axial Thickness:
  0.098 inches and 0.142 inches
• Compound Lensaxial Thickness:
  0.240 inches
• Compound Lens Edge Thickness:
  0.320 inches
• Equivalent Focal Length:
  5.761 inches
• Back Focal Length:
  5.759 inches
• Front Focal Length:
  5.909 inches
• Refraction Index:
  1.5110 and 1.7200
• Abbe Constant:
  63.500 and 29.300
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Meniscus converging and double concave
• Element Left Surface Radius:
  -8.944 inches and 1.970 inches
• Element Right Surface Radius:
  -3.228 inches and 1.970 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):
  6650-00-382-1808