|
|
|
National Stock Number:
6650-00-757-5230
Federal Supply Class:
6650
National Item Identification Number:
007575230
Description:
LENS,OPTICAL INSTRUMENT
Detail:
An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.
|
Manufacturer Information:
| 7575230 | 19200 | US ARMY ARDEC RDECOM |
|
Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 0.793 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 0.709 INCHES | | ABBE CONSTANT | 64.500 AND 36.600 | | AXIAL THICKNESS | 0.236 INCHES NOMINAL AND 0.039 INCHES NOMINAL | | BACK FOCAL LENGTH | 1.281 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.175 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.275 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 0.690 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 1.446 INCHES | | FRONT FOCAL LENGTH | 1.006 INCHES | | FSC APPLICATION DATA | BINOCULAR,FIRE CONTROL | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5170 NOMINAL AND 1.6170 NOMINAL |
|
|