Multiple light source projection system to project multiple images
US9671683B2 · kind B2 · utility
2Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2010 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Feb 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/31
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection apparatus includes one or more light sources, wherein the one or more light sources are arranged to collectively provide a light signal which comprises multiple wavelengths, wherein the projection apparatus further includes an optical filter configured to filter the light signal provided by the one or more light sources, so that two or more images may be projected simultaneously by the projection apparatus, each image being projected to a different position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.