Features
Glass optical material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
2.370 inches
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Axial Thickness:
0.443 inches
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Equivalent Focal Length:
4.305 inches
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Back Focal Length:
4.110 inches
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Front Focal Length:
3.667 inches
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Refraction Index:
1.6200
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Abbe Constant:
60.300
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Single Lens Style:
Double convex
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Individual Lens Style:
Plano-concave
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Element Left Surface Radius:
3.752 inches
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Element Right Surface Radius:
8.828 inches
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Material Specification:
Mil-g-174, class 1, grade c military specification single material response
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Fsc Application Data:
1. Periscope, xm44
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-903-5419