Optical Instrument Lens

Features

Specifications

• Diameter:
  1.496 inches
• Axial Thickness:
  0.236 inches
• Equivalent Focal Length:
  5.162 inches
• Back Focal Length:
  5.006 inches
• Front Focal Length:
  5.162 inches
• Refraction Index:
  1.5110
• Abbe Constant:
  63.500
• Single Lens Style:
  Plano-convex
• Individual Lens Style:
  Plano-convex
• Material:
  Glass, optical, jan-g-174, grade c
• Fsc Application Data:
  1. Fire control, periscope, mk 30, mod 2
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-155-1848