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1.56 BIFOCAL PHOTO. LENSES |
| SPH |
ADD (+) |
| 0.00 |
0.25 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
1.75 |
2.00 |
2.25 |
2.50 |
2.75 |
3.00 |
| 0.00 |
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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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| +1.50 |
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| +1.75 |
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| +2.00 |
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|
70/28mm |
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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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| -2.25 |
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| -2.50 |
|
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| -2.75 |
|
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| -3.00 |
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| 1.56 BIFOCAL PHOTOCHROMIC LENSES TECHNICAL DATA |
| Article |
Diameter |
Additions |
Base |
| Blank |
Segment |
| ROUND TOP |
70mm |
28mm |
+1.00 to +3.00 in 0.25D |
5B |
| BLENDED TOP |
70mm |
28mm |
+1.00 to +3.00 in 0.25D |
5B |
| FLAT TOP |
70mm |
28mm |
+1.00 to +3.00 in 0.25D |
4B,5B,6B |
|
