Optical Instrument Lens

Features

Specifications

• Diameter:
  63.0 millimeters
• End Application:
  Rangefinder mk46
• Axial Thickness:
  8.0 millimeters and 9.0 millimeters
• Compound Lensaxial Thickness:
  46.0 millimeters
• Equivalent Focal Length:
  134.480 centimeters
• Back Focal Length:
  134.450 centimeters
• Refraction Index:
  1.6170 and 1.5170
• Abbe Constant:
  36.600 and 58.600
• Compound Lens Style:
  Dialyte
• Individual Lens Style:
  Meniscus diverging and meniscus
• Element Left Surface Radius:
  658.2 millimeters and 327.0 millimeters
• Element Right Surface Radius:
  -314.8 millimeters and 3678.5 millimeters
• Material:
  Glass
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-155-1424
• Special Features:
  Reticle included