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National Stock Number:
6650-00-073-6542
Federal Supply Class:
6650
National Item Identification Number:
000736542
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.
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Manufacturer Information:
| 8626215 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 1.245 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 2.257 INCHES | | ABBE CONSTANT | 54.900 AND 36.600 | | AXIAL THICKNESS | 0.622 INCHES MINIMUM AND 0.626 INCHES MAXIMUM AND 0.102 INCHES MINIMUM AND 0.106 INCHES MAXIMUM | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.724 INCHES MINIMUM AND 0.732 INCHES MAXIMUM | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.157 INCHES MINIMUM AND 1.160 INCHES MAXIMUM | | EQUIVALENT FOCAL LENGTH | -5.110 INCHES | | FSC APPLICATION DATA | TELESCOPE PANORAMIC M113 | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C, TYPE 617-366 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6170 NOMINAL |
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