|
|
|
National Stock Number:
6650-00-450-1699
Federal Supply Class:
6650
National Item Identification Number:
004501699
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:
| 248578-13 | 89944 | ELBITAMERICA, INC. |
|
Techincal Specification:
| DIAMETER | 1.772 INCHES NOMINAL | | ABBE CONSTANT | 57.500 | | AXIAL THICKNESS | 0.409 INCHES NOMINAL | | BACK FOCAL LENGTH | 5.330 INCHES | | EQUIVALENT FOCAL LENGTH | 6.109 INCHES | | FRONT FOCAL LENGTH | 4.453 INCHES | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX | | MATERIAL | GLASS, OPTICAL, MIL-G-174, GRADE B, TYPE 573-575 | | REFRACTION INDEX | 1.5730 NOMINAL | | SINGLE LENS STYLE | DOUBLE CONVEX |
|
|