Model #175986PC9

Optical instrument lens (NSN 6650-00-320-0802)

Description

jan-g-174 optical glass material.

Diameter
21.0 millimeters
End Application
Rangefinder mk39
Axial Thickness
1.0 millimeters and 8.6 millimeters
Compound Lensaxial Thickness
9.6 millimeters
Equivalent Focal Length
57.890 centimeters
Back Focal Length
49.650 centimeters
Front Focal Length
60.130 centimeters
Refraction Index
1.6490 and 1.5170
Compound Lens Style
Doublet
Individual Lens Style
Plano-concave and double convex
Element Left Surface Radius
237.9 millimeters and 13.6 millimeters
Element Right Surface Radius
13.8 millimeters and 26.0 millimeters
Material
Glass, optical, jan-g-174
Description
Lens,optical Instrument
Cage Code
53711

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Updated: 05/05/2024