Optical Instrument Lens

Features

Specifications

• Diameter:
  1.063 inches
• Axial Thickness:
  0.739 inches
• Compound Lensaxial Thickness:
  0.739 inches
• Compound Lens Edge Thickness:
  0.605 inches
• Equivalent Focal Length:
  153.600 inches
• Back Focal Length:
  89.440 inches
• Refraction Index:
  1.6380
• Abbe Constant:
  55.500
• Single Lens Style:
  Meniscus diverging
• Element Left Surface Radius:
  0.689 inches
• Element Right Surface Radius:
  0.404 inches
• Material:
  Glass, optical, jan-g-174, grade c
• Fsc Application Data:
  1. Optical sighting and ranging equipment integrated with fire control
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-692-1530