PROGRESSIVE OPHTHALMIC LENS

PROGRESSIVE OPHTHALMIC LENS

If the lens addition is different than 2.00D, the astigmatism value is k*Add*0.41D, being Add the lens addition and k 0.5 and, if the progression path is shorter than 15 mm, the maximum astigmatism value of the foveal projection is substituted by (−0.03*d)D/mm+0.86D, if the lens progression path is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PEÑALVER, GLORIA CASANELLAS, BLASCO, RAFAEL PERPIÑAN, Colomer, Pau Artus
Format: Patent
Sprache:eng
Schlagworte:
CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Beschreibung
Zusammenfassung:If the lens addition is different than 2.00D, the astigmatism value is k*Add*0.41D, being Add the lens addition and k 0.5 and, if the progression path is shorter than 15 mm, the maximum astigmatism value of the foveal projection is substituted by (−0.03*d)D/mm+0.86D, if the lens progression path is larger than 15 mm, the maximum astigmatism value of the foveal projection is substituted by (−0.02*d)D/mm+0.71D.