Multi-projection device combining a plurality of images to form a single image
US9787955B2 · kind B2 · utility
0Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2015 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Jul 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/283
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a multi-projection device, each of the projectors comprises a light shielding plate. The light shielding plate has an end formed into a sawtooth shape and is also provided with a gradation coated part which is coated such that white-light transmittance gradually decreases in the direction away from the end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.