基本信息:
- 专利标题： OPTICAL SECURITY DEVICE, METHODS OF FORMING AND USING THE SAME
- 申请号：PCT/SG2020/050110 申请日：2020-03-06
- 公开(公告)号：WO2020180255A1 公开(公告)日：2020-09-10
- 发明人： NG, Jia Hong Ray , YANG, Kwang Wei Joel , KRISHNAN, Ravikumar Venkat
- 申请人： SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGN
- 申请人地址： 8 Somapah Road, Singapore 487372 SG
- 专利权人： SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGN
- 当前专利权人： SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGN
- 当前专利权人地址： 8 Somapah Road, Singapore 487372 SG
- 代理机构： VIERING, JENTSCHURA & PARTNER LLP
- 优先权： SG10201902059T 20190307
- 主分类号： G03F7/00
- IPC分类号： G03F7/00 ; B82Y20/00 ; G02B5/00
摘要：
Various embodiments may provide an optical security device. The optical security device may include a plurality of plasmonic structures. Each of the plurality of plasmonic structures may include a first electrically conductive structure, a second electrically conductive structure and an electrically insulating structure between the first electrically conductive structure and the second electrically conductive structure. The plurality of plasmonic structures may show a first image upon illumination of a first light having a first wavelength. The plurality of plasmonic structures may show a second image different from the first image upon illumination of a second light having a second wavelength different from the first wavelength.