Model #8289293

Optical instrument lens (NSN 6650-00-622-4990)

Description

form plates grade c class 1 mil-g-174 optical glass material.

Diameter
Between 1.696 inches and 1.699 inches
Axial Thickness
0.280 inches and 0.118 inches
Compound Lensaxial Thickness
0.398 inches
Equivalent Focal Length
8.819 inches
Back Focal Length
8.608 inches
Front Focal Length
8.210 inches
Refraction Index
1.5125 and 1.6210
Abbe Constant
60.500 and 36.200
Compound Lens Style
Doublet
Individual Lens Style
Double convex and plano-concave
Element Left Surface Radius
3.668 inches
Element Right Surface Radius
3.668 inches
Material
Glass, optical, mil-g-174, class 1, grade c, form plates
Description
Lens,optical Instrument
Cage Code
19200

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Updated: 05/19/2024