Optical Instrument Lens

Features

Specifications

• Diameter:
  20.0 millimeters
• Axial Thickness:
  3.6 millimeters and 2.9 millimeters
• Compound Lensaxial Thickness:
  6.5 millimeters
• Compound Lens Edge Thickness:
  6.2 millimeters
• Equivalent Focal Length:
  26.470 centimeters
• Back Focal Length:
  25.970 centimeters
• Front Focal Length:
  6.921 centimeters
• Compound Lens Style:
  Doublet
• Individual Lens Style:
  Double convex and plano-concave
• Element Left Surface Radius:
  58.6 millimeters
• Element Right Surface Radius:
  36.6 millimeters
• Material:
  Glass, optical
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-382-0612