Optical Instrument Lens

Features

Specifications

• Diameter:
  Between 1.157 inches and 1.160 inches
• Axial Thickness:
  Between 0.622 inches and 0.626 inches and 0.102 inches and 0.106 inches
• Compound Lensaxial Thickness:
  Between 0.724 inches and 0.732 inches
• Equivalent Focal Length:
  -5.110 inches
• Refraction Index:
  1.6170 and 1.6170
• Abbe Constant:
  54.900 and 36.600
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double convex and meniscus diverging
• Element Left Surface Radius:
  1.245 inches
• Element Right Surface Radius:
  2.257 inches
• Material:
  Glass, optical, mil-g-174, class 1, grade c, type 617-549 and glass, optical, mil-g-174, class 1, grade c, type 617-366
• Fsc Application Data:
  Telescope panoramic m113
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-073-6542