6650-00-155-1360 LENS,OPTICAL INSTRUMENT Index 6650-00-155-1363 PRISM,OPTICAL INSTRUMENT

National Stock Number:
6650-00-155-1361

Federal Supply Class:
6650

National Item Identification Number:
001551361

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:
278694PC210001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
278694PC264804BAUSCH AND LOMB INC OPTHALMIC INSTRUMENT DIV


Techincal Specification:
ELEMENT LEFT SURFACE RADIUS186.2 MILLIMETERS AND -155.5 MILLIMETERS
ELEMENT RIGHT SURFACE RADIUS155.5 MILLIMETERS AND 1001.8 MILLIMETERS
ABBE CONSTANT64.800 AND 36.200
AXIAL THICKNESS8.2 MILLIMETERS NOMINAL AND 4.0 MILLIMETERS NOMINAL
BACK FOCAL LENGTH36.400 CENTIMETERS
COMPOUND LENS OVERALL AXIAL THICKNESS12.2 MILLIMETERS NOMINAL
COMPOUND LENS STYLEDOUBLET
DIAMETER38.7 MILLIMETERS MINIMUM AND 39.2 MILLIMETERS MAXIMUM
EQUIVALENT FOCAL LENGTH36.360 CENTIMETERS
FRONT FOCAL LENGTH35.040 CENTIMETERS
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND MENISCUS DIVERGING
MATERIAL DOCUMENT AND CLASSIFICATIONJAN-G-174 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALGLASS OPTICAL
REFRACTION INDEX1.5170 NOMINAL AND 1.6210 NOMINAL


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