Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products
US12253691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2021 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Dec 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/305
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical product includes an array of lenses and first and second plurality of portions disposed under the array of lenses. Individual ones of the first plurality of portions can correspond to a point on a surface of a first 3D object, and include first non-holographic features configured to produce at least part of a first 3D image of the first 3D object. Individual ones of the second plurality of portions can correspond to a point on a surface of a second 3D object, and include second non-holographic features configured to produce at least part of a second 3D image of the second 3D object. The optical product can include an interference optical structure disposed with respect to the first and/or second non-holographic features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.