公开(公告)号：US11226557B2

公开(公告)日：2022-01-18

申请号：US16607588

申请日：2018-12-07

Applicant: LG CHEM, LTD.

Inventor： Seokhoon Jang ,  Hyunsup Lee ,  Heon Kim ,  Se Hyun Kwon ,  Yeongrae Chang

IPC: G03F7/004 ,  G03H1/02 ,  C08L51/08 ,  C08L83/12 ,  G03F7/00 ,  C08L75/04

Abstract: The present disclosure relates to a hologram recording medium having a main relaxation temperature (Tr) of 0° C. or less, wherein the Tr is a point where a rate of change of phase angle with respect to temperature is the largest in a range of −80° C. to 30° C. in dynamic mechanical analysis. The present disclosure also relates to an optical element including the same and a holographic recording method using the hologram recording medium.