Optical Instrument Lens

Features

Specifications

• Diameter:
  0.634 inches
• Axial Thickness:
  0.216 inches and 0.035 inches and 0.216 inches
• Compound Lensaxial Thickness:
  0.467 inches
• Compound Lens Edge Thickness:
  0.361 inches
• Equivalent Focal Length:
  1.790 inches
• Back Focal Length:
  1.623 inches
• Refraction Index:
  1.5110 and 1.6170 and 1.5110
• Abbe Constant:
  63.500 and 36.600 and 63.500
• Compound Lens Style:
  Triplet
• Individual Lens Style:
  Double convex and double concave and double convex
• Individual Lens Style:
  Double convex and double concave
• Element Left Surface Radius:
  0.981 inches
• Element Right Surface Radius:
  0.450 inches
• Material:
  Glass, optical, jan-g-174, grade c
• Fsc Application Data:
  Telescope
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-531-6907