Optical Element And Article Equipped With Optical Element
Patent No. EP3401712 (titled "Optical Element And Article Equipped With Optical Element") was filed by Toppan Printing on Jan 6, 2017. The application was issued on Feb 26, 2025.
Patent Summary
An optical element for displaying high-chroma structural colors with reduced data generation load and minimal observation-angle-dependent chromatic change. The element comprises a concavo-convex structure forming layer with a non-periodic arrangement of convexities and concavities, and a light-reflecting layer covering the structure. The concavo-convex structure is formed using a photolithography process, and the element is produced through electroforming or direct processing of a metal plate.
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EP3401712
- Application Number
- EP17736029A
- Filing Date
- Jan 6, 2017
- Status
- Patent Maintained As Amended
- Jan 24, 2025
- Publication Date
- Feb 26, 2025
- External Links
- Slate, Register , Google Patents