Bifocal 1.50 Flat Top G50 (index 1.50)

BIFOCAL FLAT TOP 1.50
REFRACTIVE INDEX

1.50

ABBE VALUE

58

SEMI-FINISHED FLAT TOP 1.50
BASE

70/28mm

0.50  2.00  4.00  5-00  6.00  7.00  8.00  10.00

BASE

65/28mm

12.00  14.00

SPECIFIC GRAVITY

1.32

ADD POWER +0.50D to +4.00D in 0.25D steps

FINISHED FLAT TOP 1.50
MINUS 70/28 mm

SPH

-0.25 to -3.00

ADD

+1.00 to +3.50

PLUS 70/28 mm

SPH

Plano to +4.00

ADD

+1.00 to +3.50

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