Optical Instrument Lens

Features

Specifications

• Diameter:
  Between 1.199 inches and 1.202 inches
• Axial Thickness:
  Between 0.073 inches and 0.083 inches
• Equivalent Focal Length:
  -6.646 inches
• Back Focal Length:
  -6.785 inches
• Refraction Index:
  1.7200
• Abbe Constant:
  29.300
• Single Lens Style:
  Meniscus diverging
• Element Left Surface Radius:
  2.359 inches
• Element Right Surface Radius:
  1.557 inches
• Material:
  Glass, optical, mil-g-174, grade b
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-393-0413