Optical Instrument Lens

Features

Specifications

• Diameter:
  2.630 inches
• Axial Thickness:
  0.100 inches
• Single Lens Style:
  Plano-concave
• Material:
  Germanium
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-062-3122
• Special Features:
  Material used in the manufacture of this optical part shall not containthorium, other radioactive materials, orany combination of nuclear materials in excess of .05 percent by weight as defined by title 10, code of federal regulations, part 40.The infrared antireflective coating is excluded from this restriction and contains thorium approximately .0011 grams per square centimeter of coated surface.Thorium in the antireflective coating should not exceed this amount