Part Details | SEMIFINISHED BIFOCAL OPHTHALMIC LENS BLANK
6540-01-375-4088 A transparent optical element consisting of a major blank and a bifocal segment. The blank and segment have been pressed in a glass mold to an approximate size and shape, and are ground and polished to a finished diopter curvature on one surface only.
Alternate Parts: P8.50 BC, P2.50 ADD 35 F. T., 6540-01-375-4088, 01-375-4088, 6540013754088, 013754088
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 65 | MAY 09, 1993 | 01-375-4088 | 30300 ( LENS BLANK, OPHTHALMIC, BIFOCAL, SEMIFINISHED ) |
REFERENCE DRAWINGS & PICTURES
ROUND WITH STRAIGHT TOP BIFOCAL SEGMENT
Cross Reference | NSN 6540-01-375-4088
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| P8.50 BC, P2.50 ADD 35 F. T. | 0G0R3 | SILOR OPTICAL OF FLORIDA INC |
Technical Data | NSN 6540-01-375-4088
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND WITH STRAIGHT TOP BIFOCAL SEGMENT |
| DIAMETER | 71.0 MILLIMETERS NOMINAL |
| THICKNESS | 9.0 MILLIMETERS NOMINAL |
| READING SEGMENT DIAMETER | 35.0 MILLIMETERS NOMINAL |
| READING SEGMENT HEIGHT | 22.0 MILLIMETERS NOMINAL |
| MATERIAL AND LOCATION | PLASTIC BIFOCAL |
| LIGHT TRANSMISSION | UNTINTED |
| BASE CURVE DIOPTER | 8.50 PLUS NOMINAL |
| ADDITIONAL POWER RATING IN DIOPTERS | 2.500 BIFOCAL |
| SPECIAL FEATURES | CR-39; CONVEX |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | LENS BLANK OPHTHALMIC BIFOCAL SEMIFINISHED PLAS +8.5 CR-39 71MM |