公开(公告)号：US11977938B2

公开(公告)日：2024-05-07

申请号：US17699665

申请日：2022-03-21

Applicant: TOPPAN INC.

Inventor： Keitaro Sugihara ,  Akihito Kagotani

IPC: G06K19/06 ,  G02B5/20

CPC classification number: G06K19/0614 ,  G02B5/20

Abstract: A forming mold has a surface in contact with a deposited film, a part or an entire part being a first wavy surface. A wave period of the first wavy surface is in a range of 250 nm or more and 500 nm or less. The deposited film conforms to the surface of the forming mold. The first wavy surface includes a plurality of rib surfaces, a plurality of groove surfaces, and a plurality of taper surfaces connecting the rib surfaces to the respective groove surfaces. The deposited film has a peak zone, a valley zone, and a transition zone. One of the peak zone, the valley zone, and the transition zone and another one of the peak zone, the valley zone, and the transition zone are different or has portions different in thickness and/or volume density.