公开(公告)号：US20170242268A1

公开(公告)日：2017-08-24

申请号：US15507603

申请日：2015-09-23

申请人： ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

发明人： Thierry BAUDART ,  Florence MOREL

IPC分类号： G02C7/02 ,  B29D11/00 ,  B24B13/005

CPC分类号： G02C7/028 ,  B24B13/0055 ,  B29D11/00009 ,  B29D11/00019 ,  G02C7/02 ,  G02C2202/08

摘要： A method includes: providing lens blank data relating to the first, second and peripheral blank surfaces of the lens blank; providing optical lens data relating to the first, second and peripheral optical surfaces of the optical lens; virtually positioning the optical lens in the lens blank in a position so that at least one of the first optical surface or the second optical surface is included within the lens blank; evaluating a manufacturing prism cost function, the machining prism cost function corresponding to a weighed sum of the first manufacturing prism to be used when blocking the lens blank on the second surface to machine the first optical surface and of the second manufacturing prism to be used when blocking the lens blank on the first optical surface to machine the second optical surface. The positioning and evaluation steps are repeated so as to minimize the manufacturing prism cost function.