中丰田光电申请直接反射性光学防伪元件及其制备方法专利,提供良好的力学性能与热稳定性

市场资讯
Oct 13

国家知识产权局信息显示,中丰田光电科技(珠海)有限公司申请一项名为“一种直接反射性光学防伪元件及其制备方法”的专利,公开号CN120756174A,申请日期为2025年07月。专利摘要显示,本发明公开了一种直接反射性光学防伪元件及其制备方法,其中,光学防伪元件包括:基膜材料层、立体微结构阵列层、金属层、胶粘层、纸张层以及背涂层,基膜材料层、立体微结构阵列层、金属层、胶粘层、纸张层以及背涂层从上到下...

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