公开(公告)号：US20190257981A1

公开(公告)日：2019-08-22

申请号：US16333416

申请日：2017-09-13

Applicant: SOMAR CORPORATION

Inventor： Yui TOGAWA

IPC: G02B1/11

Abstract: The present invention provides a Light-shading member for an optical device, the Light-shading member can be manufactured by a simple process, i.e. can be producible, and which has excellent reflection preventing performance and can be applied to an optical device which is small and thin; and based on JIS B0601: 2001, the arithmetical mean deviation of the assessed profile Ra of the surface of the Light-shading member for an optical device that is 0.5 μm or more, and the difference (Rp−Rv) between the maximum profile peak height Rp and the maximum profile valley depth Rv is less than 3; the Light-shading member for an optical device that preferably has a substrate film and a Light-shading layer, the Light-shading layer is formed on at least one surface of the substrate film. Further, the Light-shading layer has an average film thickness of 2 μm-35 μm.