Features
grade c mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
0.760 inches
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End Application:
Telescope, panoramic, m117
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Axial Thickness:
0.179 inches and 0.099 inches
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Compound Lensaxial Thickness:
0.278 inches
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Compound Lens Edge Thickness:
0.228 inches
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Equivalent Focal Length:
6.135 inches
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Back Focal Length:
6.008 inches
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Front Focal Length:
5.730 inches
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Refraction Index:
1.5725 and 1.6890
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Abbe Constant:
57.400 and 68.900
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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:
4.235 inches
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Element Right Surface Radius:
2.487 inches
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Material:
Glass, optical, mil-g-174, grade c
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Fsc Application Data:
Telescope, panoramic, t177, 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):
6650-00-851-7613