公开(公告)号：WO2009142859A1

公开(公告)日：2009-11-26

申请号：PCT/US2009/041140

申请日：2009-04-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： BESCUP, Terrance, L. ,  CARLSON, Eugene H . ,  WILDING, Matthew D .

IPC: G02B5/128 ,  E01F9/04

CPC classification number: G02B5/128 ,  E01F9/524 ,  Y10T428/25

Abstract: The present application relates to optically active elements and the methods of making these elements. The optically active elements include multiple layers of optically active beads positioned adjacent to a core particle. The methods of making these optically active elements involve applying multiple layers of optically active beads around a core particle. At least some of the optically active elements exhibit increased durability and/or performance due to the inclusion of multiple layers of optically active beads.

Abstract translation: 本申请涉及光学活性元件和制造这些元件的方法。 光学活性元件包括邻近核心颗粒定位的多层光学活性珠。 制造这些光学活性元件的方法包括在芯颗粒周围应用多层光学活性珠。 由于包含多层光学活性珠粒，至少一些光学活性元件表现出增加的耐久性和/或性能。