Model #7577959

Optical instrument lens (NSN 6650-00-757-7959)

Description

grade c jan-g-174 optical glass material.

Diameter
1.343 inches
Length
0.884 inches
Axial Thickness
0.468 inches and 0.295 inches
Compound Lensaxial Thickness
0.768 inches
Compound Lens Edge Thickness
0.884 inches
Equivalent Focal Length
6.390 inches
Back Focal Length
5.124 inches
Refraction Index
1.5725 and 1.6490
Abbe Constant
57.400 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Plano-convex and plano-concave
Element Left Surface Radius
-98.717 inches and 1.376 inches
Element Right Surface Radius
-98.717 inches and -0.910 inches
Material
Glass, optical, jan-g-174, grade c
Fsc Application Data
Periscope, integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/19/2024