Model #7593586

Optical instrument lens (NSN 6650-00-759-3586)

Description

grade b jan-g-174 optical glass material.

Diameter
2.200 inches
Axial Thickness
0.450 inches and 0.232 inches
Compound Lensaxial Thickness
0.682 inches
Compound Lens Edge Thickness
0.500 inches
Equivalent Focal Length
12.237 inches
Back Focal Length
11.879 inches
Refraction Index
1.5110 and 1.6053
Abbe Constant
63.500 and 43.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
6.614 inches
Element Right Surface Radius
2.728 inches
Material
Glass, optical, jan-g-174, grade b
Fsc Application Data
Periscope, m20a28 integrated with fire control equipment
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/28/2024