Flat top; cr-39; segment positioned 5 mm below and 5 mm in from geometric center for right and left lenses (porm 2 mm)
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.
Classification: Lens blanks (other than for spectacles) not optically worked, of glass, (optical elements)
NSN 5960-00-404-2126
NSN 5999-01-242-9350
NSN 5935-00-121-9842
NSN 5895-01-299-8916
NSN 5975-01-264-5516
NSN 5910-01-534-7699
NSN 6150-00-235-6293
NSN 5915-01-487-6235
NSN 6110-00-339-4140
NSN 5835-01-363-4527
NSN 5990-01-282-0570
NSN 5950-01-200-7893