Optical Instrument Lens

Features

Specifications

• Diameter:
  Between 2.066 inches and 2.069 inches
• Axial Thickness:
  0.472 inches
• Equivalent Focal Length:
  2.985 inches
• Back Focal Length:
  2.985 inches
• Refraction Index:
  1.6200
• Abbe Constant:
  60.300
• Single Lens Style:
  Plano-convex
• Element Left Surface Radius:
  1.851 inches
• Element Right Surface Radius:
  1.851 inches
• Material:
  Glass, optical, mil-g-174, grade c, type 620-603
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-964-9276