Method and system for producing a gradient polar film

    公开(公告)号:US12115744B2

    公开(公告)日:2024-10-15

    申请号:US17416899

    申请日:2019-12-09

    IPC分类号: B29D11/00 G02C7/12

    摘要: A system and method for manufacturing an ophthalmic lens is provided. The method involves preparing a cross-polarization cancelling optical film for an optical article comprising providing a film having at least a first section comprising a first edge, a second section comprising a second edge, and a predetermined color intensity; providing an apparatus, wherein the apparatus comprises at least a first roller and a second roller, wherein the first roller and the second roller are configured to stretch at least a portion of the film; and continuously and asymmetrically stretching at least a portion of the film using the apparatus, while substantially maintaining the color intensity of the film.