Features
type 670-471 grade b mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
1.999 inches
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Axial Thickness:
0.380 inches
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Equivalent Focal Length:
3.495 inches
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Back Focal Length:
3.401 inches
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Front Focal Length:
3.357 inches
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Single Lens Style:
Double convex
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Individual Lens Style:
Double convex
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Element Left Surface Radius:
5.703 inches
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Element Right Surface Radius:
-3.863 inches
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Material:
Glass, optical, mil-g-174, grade b, type 670-471
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Fsc Application Data:
Detecting set, infrared, communication
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-962-2281