Optical Instrument Lens

Features

Specifications

• Diameter:
  2.296 inches
• Length:
  1.148 inches
• Axial Thickness:
  0.132 inches and 0.794 inches
• Compound Lensaxial Thickness:
  0.926 inches
• Equivalent Focal Length:
  12.792 inches
• Back Focal Length:
  16.371 inches
• Front Focal Length:
  10.228 inches
• Refraction Index:
  1.5460 and 2.2160
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double concave and double convex
• Element Left Surface Radius:
  -1.642 inches and 2.071 inches
• Element Right Surface Radius:
  -2.071 inches and 1.928 inches
• Material:
  Glass, optical, mil-g-174
• Material Specification:
  Mil-g-174 military specification single material response
• Special Test Features:
  Meets mil-o-13830 specifications
• Supplementary Features:
  Polished surfaces; ground edges
• Fsc Application Data:
  Night vision equipment
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-010-5162
• Special Features:
  Edges blackened per sc-b-614594