Optical articles having embossed films defining encapsulated microlenses and methods of making the same
US12257792B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Mar 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure includes optical articles comprising a film layer that has first and second film surfaces and is embossed such that the first film surface defines a plurality of concave optical elements and the second film surface defines a plurality of convex optical elements. The present optical articles can include one or more optical layers coupled to the film layer. Each of the optical layer(s) can encapsulate the concave optical elements or the convex optical elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.