Optical Instrument Lens

Features

Specifications

• Diameter:
  1.496 inches
• Axial Thickness:
  0.268 inches
• Compound Lensaxial Thickness:
  0.268 inches
• Compound Lens Edge Thickness:
  0.074 inches
• Equivalent Focal Length:
  2.530 inches
• Back Focal Length:
  2.561 inches
• Front Focal Length:
  2.336 inches
• Refraction Index:
  1.6110
• Abbe Constant:
  58.8000
• Single Lens Style:
  Meniscus converging
• Individual Lens Style:
  Meniscus diverging
• Material:
  Glass, optical, jan-g-174, grade c
• Fsc Application Data:
  Fire control, telescope mk 100 mod 0
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-389-3570