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National Stock Number:
6650-00-157-4147
Federal Supply Class:
6650
National Item Identification Number:
001574147
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:
| 203035PC16 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 203035PC16 | 53711 | NAVAL SEA SYSTEMS COMMAND | | G8111PC16 | 34993 | KEUFFEL AND ESSER CO LSE OPNS |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 21.6 MILLIMETERS AND -17.3 MILLIMETERS | | ELEMENT RIGHT SURFACE RADIUS | 17.3 MILLIMETERS AND 296.0 MILLIMETERS | | ABBE CONSTANT | 33.800 AND 57.400 | | AXIAL THICKNESS | 7.5 MILLIMETERS NOMINAL AND 2.0 MILLIMETERS NOMINAL | | BACK FOCAL LENGTH | 3.451 CENTIMETERS | | COMPOUND LENS EDGE THICKNESS | 5.0 MILLIMETERS NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 9.5 MILLIMETERS NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 22.0 MILLIMETERS NOMINAL | | EQUIVALENT FOCAL LENGTH | 4.084 CENTIMETERS | | FRONT FOCAL LENGTH | 4.117 CENTIMETERS | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6490 NOMINAL AND 1.5725 NOMINAL |
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