ELEMENT LEFT SURFACE RADIUS | -5.139 INCHES AND 6.693 INCHES |
ELEMENT RIGHT SURFACE RADIUS | -1.704 INCHES AND 1.704 INCHES |
ABBE CONSTANT | 36.200 AND 64.500 |
AXIAL THICKNESS | 0.157 INCHES NOMINAL AND 0.866 INCHES NOMINAL |
BACK FOCAL LENGTH | 4.089 INCHES |
COMPOUND LENS EDGE THICKNESS | 0.590 INCHES NOMINAL |
COMPOUND LENS OVERALL AXIAL THICKNESS | 1.023 INCHES NOMINAL |
COMPOUND LENS STYLE | DOUBLET |
DIAMETER | 2.204 INCHES NOMINAL |
EQUIVALENT FOCAL LENGTH | 3.952 INCHES |
FRONT FOCAL LENGTH | 3.170 INCHES |
FSC APPLICATION DATA | GUNSIGHT MK 15 MOD 2 |
INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE |
MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
MATERIAL | GLASS OPTICAL |
REFRACTION INDEX | 1.6210 NOMINAL AND 1.5170 NOMINAL |