Model #220588PC8

Optical instrument lens (NSN 6650-00-382-0924)

Description

barium flint glass material.

Diameter
17.0 millimeters
End Application
Rangefinder mk42
Axial Thickness
2.0 millimeters and 4.0 millimeters
Compound Lensaxial Thickness
6.0 millimeters
Compound Lens Edge Thickness
5.0 millimeters
Equivalent Focal Length
87.480 centimeters
Back Focal Length
87.500 centimeters
Front Focal Length
84.560 centimeters
Refraction Index
1.6158 and 1.5408
Abbe Constant
36.800 and 51.200
Compound Lens Style
Doublet
Individual Lens Style
Double concave and double convex
Element Left Surface Radius
-154.0 millimeters and 18.9 millimeters
Element Right Surface Radius
-18.9 millimeters and 47.6 millimeters
Material
Glass, barium flint
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 05/04/2024