Color display projection method and apparatus
US9723278B2 · kind B2 · utility
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2References
4Claims
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Key dates
| Filing date | May 19, 2014 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | May 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-DMD projection system uses an extended X-cube color splitting/recombining prism to implement splitting and recombining functions at different sections of the cube. Light directed from a white light source is split into red, green and blue components in a lower section of the cube. The components are directed to respective first, second and third DMDs for separate modulations and reentered into the X-cube prism by TIR prism for recombining at an upper section of the cube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.