6540-00-001-0662 LENS,OPHTHALMIC,COMPOUND Index 6540-00-001-0664 LENS,OPHTHALMIC,COMPOUND

National Stock Number:
6540-00-001-0663

Federal Supply Class:
6540

National Item Identification Number:
000010663

Description:
LENS,OPHTHALMIC,COMPOUND

Detail:
A TRANSPARENT OPTICAL ELEMENT HAVING A SPHERICAL CURVE AND A CYLINDRICAL CURVE USED TO CORRECT VISION DEFECTS OF THE EYE.


Manufacturer Information:
MILL3682481349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
P0.25-3.75,CR-393N062DISPENSERS OPTICAL SERVICE CORP
P0.25M3.75,6.50BC,71MM,CR-390A0U8PRECISION OPTICS


Techincal Specification:
DIAMETER71.0 MILLIMETERS MINIMUM
BASE CURVE DIOPTER6.50 PLUS NOMINAL
CROSS-SECTIONAL SHAPE STYLESPHEROCYLINDER COMPOUND
CYLINDER CURVE INSIDE DIOPTER3.75 MINUS MAXIMUM
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BYDIAMETER
LIGHT TRANSMISSIONUNTINTED
MATERIAL AND LOCATIONPLASTIC SINGLE VISION
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS OPHTHALMIC COMPOUND PLASTIC PLUS 0.25 ON MINUS 3.75
NONDEFINITIVE SPEC/STD DATA3 STYLE AND B CLASS
SPHERE CURVE INSIDE DIOPTER0.25 PLUS MAXIMUM
STYLE DESIGNATORROUND
SUPPLEMENTARY FEATURESUNCUT
THICKNESS1.6 MILLIMETERS NOMINAL


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