Optical Instrument Lens

Features

Specifications

• Diameter:
  2.244 inches
• Axial Thickness:
  0.161 inches and 0.709 inches
• Compound Lensaxial Thickness:
  0.870 inches
• Compound Lens Edge Thickness:
  0.5625 inches
• Equivalent Focal Length:
  106.870 inches
• Front Focal Length:
  88.273 inches
• Refraction Index:
  1.5200 and 1.6890
• Abbe Constant:
  30.900 and 58.600
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double concave and double convex
• Element Left Surface Radius:
  2.015 inches
• Element Right Surface Radius:
  6.346 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
• Fsc Application Data:
  Telescope, m105c, integrated with fire control equipment
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-683-9551