Holovision (TM) 3D imaging with rotating light-emitting members
US7978407B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2009 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Dec 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention is a novel device that displays three-dimensional moving images featuring binocular disparity and motion parallax that can be seen simultaneously by multiple viewers in different positions without requiring headgear. This device comprises: longitudinal light-guiding members that rotate around their longitudinal axes; and light-emitting members inside, or attached to, each longitudinal light-guiding member. Changes in the content of light rays from the light-emitting members are coordinated with changes in the directions of these light rays so that viewers in different positions can see appropriate three-dimensional images. Advantageous features include: no headgear required, allows multiple viewers, high image resolution, avoids pseudoscopic images, offers wide viewing range, scalable to large size displays, multi-directional motion parallax, high light efficiency, avoids head tracking, avoids reciprocal motion, avoids fluid lag, avoids ghost-like images, and avoids use of coherent light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.