Product Technical Spec.
Axial Thickness:
0.206 inches and 0.049 inches
Compound Lensaxial Thickness:
0.255 inches
Compound Lens Edge Thickness:
0.153 inches
Equivalent Focal Length:
1.485 inches
Back Focal Length:
1.378 inches
Refraction Index:
1.5170 and 1.6490
Abbe Constant:
64.500 and 33.800
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and meniscus diverging
Element Left Surface Radius:
1.107 inches
Element Right Surface Radius:
0.682 inches
Material:
Glass, optical, mil-g-174, class 1, grade c
Material Specification:
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data:
Instrument, azimuth, m1918a, integrated with fire control equipment
Item Name:
Lens,telescope
Cross Referenced Parts
No other part numbers with same form, fit, and function found.