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Flat Top Bifocal
Size70/28mm
Base4.00/6.00
Power -2.00 TO +3.00
Add +1.00 TO +3.00
Round Top Bifocal
Size70/28mm 70/24mm
Base4.00/6.00
Power -2.00 TO +3.00
Add +1.00 TO +3.00
Invisible Bifocal
Size70/28mm 70/24mm
Base4.00/6.00
Power -2.00 TO +3.00
Add +1.00 TO +3.00
Front curve(convex): 6.00+/-0.03
Center thickness: 2.0mm+/-0.3mm
Diameter tolerance: 70mm+/-0.3mm
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SPH |
ADD |
1.00 |
1.25 |
1.50 |
1.75 |
2.00 |
2.25 |
2.50 |
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3.00 |
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+0.25 |
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+0.50 |
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+0.75 |
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+1.00 |
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+1.25 |
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+1.50 |
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Round
Bifocal,Invisble Bifocal,Flat Bifocal |
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+1.75 |
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+2.00 |
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+2.25 |
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+2.50 |
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+2.75 |
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+3.00 |
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-0.25 |
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-0.50 |
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-0.75 |
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-1.00 |
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-1.25 |
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-1.50 |
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-1.75 |
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-2.00 |
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Round Bifocal,Invisble Bifocal |
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-2.25 |
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-2.50 |
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-2.75 |
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-3.0>0 |
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