Compact optical see-through head-mounted display with occlusion support
US7639208B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2005 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Mar 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system, apparatus and method are capable of mutual occlusions. The core of the system is a spatial light modulator (SLM) which allows users to block or pass certain parts of a scene which is viewed through the head worn display. An objective lens images the scene onto the SLM and the modulated image is mapped back to the original scene via an eyepiece. The invention combines computer-generated imagery with the modulated version of the scene to form the final image a user would see. The invention is a breakthrough in display hardware from a mobility (i.e. compactness), resolution, and speed, and is specifically, related to virtual objects being able to occlude real objects and real objects being able to occlude virtual objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.