Display system
US8767306B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Dec 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system has an aperture through which virtual and real-world images are viewable along a viewing axis. The optical system may be incorporated into a head-mounted display (HMD). By illuminating a viewing location with an infrared light source, an eye pupil may be illuminated. Infrared light is reflected from the viewing location and is collected with a proximal beam splitter. An image former is configured to reflect at least a portion of the visible light pattern generated by the display panel to form the virtual image and transmit at least a portion of the collected infrared light. The transmitted infrared light may be imaged by a camera. The HMD may use images from the camera to provide, for example, context-sensitive virtual images to a wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.