摘要 |
The invention relates to a progressive ophthalmic lens comprising a front surface and a rear surface, each surface having in each point an altitude, a mean sphere value and a cylinder value, the front surface of the lens comprising: - a far vision zone having a far vision reference point; - a near vision zone having a near vision reference point; - a main meridian, wherein the front surface is regressive and has: - a sphere gradient normalized value of less than 7.50.10-1 mm-1 at any point in a central portion of the lens including a portion of the main meridian (32), the far vision reference point (FV) and the near vision reference point (NV); - a cylinder gradient normalized value of less than 1.45 mm-1 at any point in the central portion of the lens. |
申请人 |
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE);DE ROSSI, HELENE;MOINE, JEROME;REGO, CARLOS;GUILLOT, MATTHIEU |
发明人 |
DE ROSSI, HELENE;MOINE, JEROME;REGO, CARLOS;GUILLOT, MATTHIEU |