Model #5316908

Optical instrument lens (NSN 6650-00-531-6908)

Description

type 517-645 grade c mil-g-174 optical glass material.

Diameter
2.255 inches
Axial Thickness
0.393 inches and 0.277 inches
Compound Lensaxial Thickness
0.670 inches
Equivalent Focal Length
14.130 inches
Back Focal Length
13.744 inches
Refraction Index
1.5170 and 1.6170
Abbe Constant
64.500 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus
Element Left Surface Radius
-6.082 millimeters and 7.390 millimeters
Element Right Surface Radius
-35.390 millimeters and -6.082 millimeters
Material
Glass, optical, mil-g-174, grade c, type 517-645
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 11/21/2024