Electronic card with printed circuit comprising an integrated diffraction structure and method for the production thereof
US10912191B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The electronic card with printed circuit comprises at least one diffraction structure (DS) having a cavity (15) and a diffraction plate (17). In accordance with the invention, the diffraction structure is incorporated in the thickness of the electronic card with printed circuit, the cavity being formed, by removal of material, in the thickness of the electronic card with printed circuit and the diffraction plate being formed in a plate which is arranged on the electronic card with printed circuit and closes the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.