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National Stock Number:
6650-00-155-2880
Federal Supply Class:
6650
National Item Identification Number:
001552880
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:
| 279422PC3 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | G11060PC3 | 74067 | KEUFFEL AND ESSER CO |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 99.2 MILLIMETERS AND -56.9 MILLIMETERS | | ELEMENT RIGHT SURFACE RADIUS | 56.9 MILLIMETERS AND 168.1 MILLIMETERS | | ABBE CONSTANT | 63.500 AND 33.800 | | AXIAL THICKNESS | 5.0 MILLIMETERS NOMINAL AND 3.0 MILLIMETERS NOMINAL | | BACK FOCAL LENGTH | 13.705 CENTIMETERS | | COMPOUND LENS OVERALL AXIAL THICKNESS | 8.0 MILLIMETERS NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 28.0 MILLIMETERS NOMINAL | | EQUIVALENT FOCAL LENGTH | 14.057 CENTIMETERS | | FRONT FOCAL LENGTH | 13.891 CENTIMETERS | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5110 NOMINAL AND 1.6490 NOMINAL |
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