Detail Specifications
Axial Thickness:
0.468 inches and 0.295 inches
Compound Lensaxial Thickness:
0.768 inches
Compound Lens Edge Thickness:
0.884 inches
Equivalent Focal Length:
6.390 inches
Back Focal Length:
5.124 inches
Refraction Index:
1.5725 and 1.6490
Abbe Constant:
57.400 and 33.800
Compound Lens Style:
Doublet
Individual Lens Style:
Plano-convex and plano-concave
Element Left Surface Radius:
-98.717 inches and 1.376 inches
Element Right Surface Radius:
-98.717 inches and -0.910 inches
Material:
Glass, optical, jan-g-174, grade c
Material:
Glass, optical, jan-g-174, grade c
Fsc Application Data:
Periscope, integrated with fire control equipment
Item Name:
Collimator,lens
Manufacturer Part Numbers
No other part numbers with same form, fit, and function found.