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公开(公告)号：BR9804422A
公开(公告)日：1999-11-03
申请号：BR9804422
申请日：1998-10-16
Applicant: ESSILOR INT
Inventor： CLAUDE PEDRONO , CRISTIAN HARSIGN , CATHERINE FAUQUIER , FANNY JURKIEWIEZ , ERIC ROLAND
Abstract: The lens has an aspherical surface with a geometrical center, a reference point for near vision, and a virtually umbilical and vertical meridian line with a mean spherical and cylindrical value at each point. The area formed by points at a distance of less than 20 mm from the geometrical center and with a cylindrical value of between 0.42 and 0.84 diopter is greater than the area formed by points at a distance of less than 20 mm from the geometrical center and with a cylindrical value of less than 0.42 diopter.
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