Model #89-6-19-63

Se bifocal ophthalmic lens blank (NSN 6540-01-311-1090)

Special Features
Matl cr-39; flat top; segment positioned 5 mm below and 5 mm in from geometric center for right and left lenses, plus or minus 2 mm
Cross Sectional Shape
Sphere
Diameter
66.0 millimeters
Thickness
10.0 millimeters
Material And Location
Plastic
Additional Power Rating In Diopters
1.750 bifocal
Reading Segment Diameter
25.0 millimeters
Reading Segment Height
17.500 inches
Base Curve Diopter
4.25 plus
Cross Curve Diopter
Any acceptable
Light Transmission
Untinted
Sphere Curve Inside Diopter
Any acceptable
Sphere Curve Outside Diopter
Any acceptable
Style Designator
Round with straight top bifocal segment
Description
Lens Blank,ophthalmic,bifocal,se
Cage Code
66732

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Updated: 11/21/2024