Optical Instrument Lens

Features

Specifications

• Axial Thickness:
  0.307 inches and 0.715 inches
• Compound Lensaxial Thickness:
  1.022 inches
• Compound Lens Edge Thickness:
  1.000 inches
• Equivalent Focal Length:
  10.728 inches
• Back Focal Length:
  10.039 inches
• Front Focal Length:
  9.017 inches
• Refraction Index:
  1.6170 and 1.5230
• Abbe Constant:
  36.600 and 58.600
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Meniscus diverging and double convex
• Element Left Surface Radius:
  51.105 millimeters
• Element Right Surface Radius:
  4.088 millimeters
• Material:
  Glass, optical, mil-g-174, class 1, grade c
• Material Specification:
  Mil-g-174, class 1, grade c military specification single material response
• Fsc Application Data:
  Collimator, inf. Aiming ref, integrated with fire control equip
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-045-8355