Detail Specifications
Compound Lensaxial Thickness:
0.362 inches
Compound Lens Edge Thickness:
0.250 inches
Equivalent Focal Length:
6.626 inches
Back Focal Length:
6.385 inches
Front Focal Length:
6.023 inches
Refraction Index:
1.6200 and 1.6490
Abbe Constant:
60.300 and 33.800
Compound Lens Style:
Doublet
Individual Lens Style:
Double convex and plano-concave
Element Left Surface Radius:
3.690 inches
Element Right Surface Radius:
1.651 inches
Material Specification:
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data:
Periscope, tank, xm48
Manufacturer Part Numbers
No other part numbers with same form, fit, and function found.