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公开(公告)号：ES2100798A1
公开(公告)日：1997-06-16
申请号：ES9400860
申请日：1994-04-22
Applicant: ESSILOR INT
Inventor： ASHBAHS FRANCOISE , BOURDONCLE BERNARD , DELDALLE BENEDCTE , MIEGE CHRISTIAN
Abstract: PAR DE LENTAS OFTALMICAS MULTIFOCALES PROGESIVAS EN EL QUE CADA UNA DE LAS LENTES INCLUYE UNA SUPERFICIE ESFERICA QUE COMPRENDE UNA ZONA DE VISION LEJANA (VLL, VLP), UNA ZONA DE VISION PROXIMA (VLL, VLP), UNA ZONA DE VISION INTERMEDIA, UNA MERIDIANA PRINCIPAL DE PROGRESION QUE ATRAVIESA DICHAS ZONAS. LAS MERIDIANAS PRINCIPALES DE PROGRESION DE DICHAS LENTES SON SIMETRICAS, Y UNA DE DICHAS LENTES ESTA MAS PARTICULARMENTE DEDICADA A LA VISION LEJANA, MIENTRAS QUE LA OTRA ESTA DEDICADA MAS PARTICULARMENTE A LA VISION PROXIMA; LA LENTE DEDICADA A LA VISION LEJANA PRESENTA UNA ZONA DE VISION LEJANA (VLL) MAS EXTENSA QUE LA (VLP) DE LA LENTE DEDICADA A LA VISION PROXIMA, Y LA LENTE DEDICADA A LA VISION LEJANA PRESENTA UNA ZONA DE VISION PROXIMA (VLL) MENOS EXTENSA QUE LA (VLP) DE LA LENTE DEDICADA A LA VISION PROXIMA.
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公开(公告)号：ES2100798B1
公开(公告)日：1998-02-16
申请号：ES9400860
申请日：1994-04-22
Applicant: ESSILOR INT
Inventor： ASHBAHS FRANCOISE , BOURDONCLE BERNARD , DELDALLE BENEDCTE , MIEGE CHRISTIAN
Abstract: In a pair of progressive multifocal ophthalmic lenses, in which each lens has an aspherical surface comprising a far vision portion, a near vision portion, an intermediate vision portion, and a prime meridian of power progression passing through these three portions, the prime meridians of progression of the lenses are substantially symmetrical with respect to each other, and one of the lenses is more particularly dedicated to far vision and the other is more particularly dedicated to near vision, the lens dedicated to far vision having a more extensive far vision portion than the far vision portion of the lens dedicated to near vision, and the lens dedicated to far vision having a less extensive near vision portion than the near vision portion of the lens dedicated to near vision.
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