公开(公告)号：US11741327B2

公开(公告)日：2023-08-29

申请号：US17580182

申请日：2022-01-20

Applicant: TOPPAN INC.

Inventor： Akihito Kagotani ,  Satoshi Uchida ,  Soko Koda

IPC: G06K19/06 ,  G02B5/02 ,  G07D7/0043

CPC classification number: G06K19/06028 ,  G02B5/0284 ,  G07D7/0043

Abstract: An optical assembly includes a spacer layer which is translucent or transparent; an image forming reflector which has a reflective layer being formed at least in a first region of the spacer layer; and a protective layer which is laminated over the spacer layer and the image forming reflector and the protective layer being translucent or transparent. The spacer layer is made of a polyolefin or/and a polymer containing an aryl group. The image forming reflector includes a visible image which is authenticatable. The image forming reflector has an individual information record in which a code is stored in the form of a plurality of removed linear segments. The image forming reflector has white level regions and a black level region in planar view. Each of the white level regions has the removed linear segments formed therein. The black level region is interposed between the white level regions.