Lightguides with pixelated image
US10509157B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Aug 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lightguides including pixelated images, and methods of making the lightguides are provided. The lightguides include an image formed on a major side which is illuminated for directly viewing. The image includes an elongated portion being pixelated into an array of pixels. Each of the pixels includes a single light extracting structure adapted to receive the propagating light within the lightguide along the optical axis and extract the received light transversely out of the lightguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.