Juan Carlos Dürsteler López,Javier Vegas Caballero,Manuel Espínola Estepa,Sara Chamadoira Hermida,Glória Casanellas Peñalver
申请号：
US13720419
公开号：
US09170433B2
申请日:
2012.12.19
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A method for designing and manufacturing a monofocal ophthalmic lens and corresponding lens. A surface of the monofocal ophthalmic lens is defined by:f(x,y)=a1+a2√{square root over (1−a3x2−a4y2)}+a5exp{a6x4+a7y4+a8x2y2}wherein x and y are perpendicular optical axes of the lens in a plane, wherein a1-a8 are coefficients, and wherein a5 is other than 0 and at least one of a6, a7 and a8 is other than 0, including a hyperbolic component and an exponential component. The coefficients can be calculated by an iterative calculation and the merit function as follows: where mi is a value of an optical property at a specific viewing angle β with respect to an optical axis of the lens, and αi is a weighting value.
