Optical Structure As Motif
Patent No. EP3605158 (titled "Optical Structure As Motif") was filed by Toppan Printing on Mar 29, 2018. The application was issued on Sep 25, 2024.
Patent Summary
Optical structure for high-security printing, comprising a structure surface with multiple display region groups, each containing multiple display regions with reflective surfaces arranged at a pitch of 1-300 microns. Each display region produces an image in a unique direction, with display regions in each group having different azimuth angles. The groups are designed to produce images with distinct brightness levels, while maintaining a matching motif.
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Date
Description
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EP3605158
- Application Number
- EP18775243A
- Filing Date
- Mar 29, 2018
- Status
- Granted And Under Opposition
- Aug 22, 2024
- Publication Date
- Sep 25, 2024
- External Links
- Slate, Register , Google Patents