Model #745659PC1

Optical instrument lens (NSN 6650-00-155-1764)

Description

jan-g-174 optical glass material.

Diameter
5.0 millimeters
End Application
Rangefinder mk57
Axial Thickness
2.2 millimeters and 1.1 millimeters
Compound Lensaxial Thickness
3.3 millimeters
Equivalent Focal Length
2.700 centimeters
Back Focal Length
2.720 centimeters
Front Focal Length
2.760 centimeters
Refraction Index
1.5725 and 1.6170
Abbe Constant
57.400 and 36.600
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
22.1 millimeters and -8.5 millimeters
Element Right Surface Radius
8.5 millimeters and 30.7 millimeters
Material
Glass, optical, jan-g-174
Description
Lens,optical Instrument
Cage Code
53711

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Updated: 05/08/2024