Model #799638

Optical instrument lens (NSN 6650-00-157-4138)

Description

jan-g-174 optical glass material.

Diameter
31.0 millimeters
End Application
Rangefinder mk42
Axial Thickness
6.0 millimeters and 3.0 millimeters
Compound Lensaxial Thickness
9.0 millimeters
Equivalent Focal Length
19.430 centimeters
Back Focal Length
19.250 centimeters
Refraction Index
1.5055 and 1.5105
Abbe Constant
43.500 and 63.700
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
117.4 millimeters and -45.1 millimeters
Element Right Surface Radius
45.1 millimeters and 306.3 millimeters
Material
Glass, optical, jan-g-174
Description
Lens,optical Instrument
Cage Code
10001

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Updated: 11/23/2024