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 6110-00-229-1360
NSN 5945-01-053-5624
NSN 5965-01-509-3841
NSN 5960-01-263-6781
NSN 6620-01-145-7762
NSN 6240-01-337-8401
NSN 7035-01-316-7860
NSN 7035-00-064-7008
NSN 6110-01-266-9518
NSN 6150-01-176-2326
NSN 5945-01-463-9427
NSN 5945-00-170-5885