Features
grade b class 1 mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
0.718 inches
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Axial Thickness:
0.165 inches and 0.070 inches
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Compound Lensaxial Thickness:
0.235 inches
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Compound Lens Edge Thickness:
0.187 inches
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Equivalent Focal Length:
3.135 inches
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Back Focal Length:
3.020 inches
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Refraction Index:
1.5170 and 1.6490
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Abbe Constant:
64.500 and 33.800
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Compound Lens Style:
Doublet
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Individual Lens Style:
Double convex and meniscus diverging
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Element Left Surface Radius:
1.923 inches
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Element Right Surface Radius:
1.284 inches
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Material:
Glass, optical, mil-g-174, class 1, grade b
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Fsc Application Data:
Telescope, integrated with fire control equipment
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-503-6359