Optical Instrument Lens

Features

Specifications

• Diameter:
  1.468 inches
• Axial Thickness:
  0.434 inches and 0.145 inches
• Compound Lensaxial Thickness:
  0.579 inches
• Compound Lens Edge Thickness:
  0.460 inches
• Equivalent Focal Length:
  1.446 inches
• Back Focal Length:
  1.281 inches
• Front Focal Length:
  1.006 inches
• Refraction Index:
  1.5170 and 1.6170
• Abbe Constant:
  64.500 and 33.800
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double convex and meniscus diverging
• Element Left Surface Radius:
  0.793 inches and -0.709 inches
• Element Right Surface Radius:
  -0.709 inches and -3.284 inches
• Material:
  Glass, optical, jan-g-174, grade c
• Fsc Application Data:
  Telescope, integrated with fire control
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-757-7954