Model #278698PC6

Optical instrument lens (NSN 6650-00-155-1749)

Description

Glass material.

Diameter
51.0 millimeters
End Application
Rangefinder mk51
Axial Thickness
9.4 millimeters and 5.3 millimeters
Compound Lensaxial Thickness
19.1 millimeters
Equivalent Focal Length
44.580 centimeters
Back Focal Length
48.720 centimeters
Front Focal Length
48.070 centimeters
Refraction Index
1.9170 and 1.9170
Abbe Constant
64.500 and 36.600
Compound Lens Style
Dialyte
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
241.4 millimeters and -155.5 millimeters
Element Right Surface Radius
159.9 millimeters and 906.3 millimeters
Material
Glass
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 05/08/2024