3-D viewing system
US6525878B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 12, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A 3-D viewing system is disclosed that enables multiple operators to share a common objective element while readily adjusting the orientation of images that are displayed to one or more moveable display units. The orientation of images that are displayed at a movable display unit can be made to automatically depend on the position/orientation of the display unit. Thus greater freedom in viewing postures is provided than previously available in 3-D viewing systems that share a common objective element, and each operator may view a 3-D image with proper perspective for his position/orientation. In order to reduce the number of optical components, the need to adjust optical components, and reduce costs, images from at least two different optical perspectives may be time-division multiplexed onto a single optical detecting device. Moreover, wide-angle, electronic color displays are disclosed which demodulate time-multiplexed image signals having two different parallaxes in a manner that dispenses with the need for wearing polarized glasses in order to experience a wide-angle, 3-D viewing experience. An electronic image display unit demultiplexes image data using left and right LED sets…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.