Head-mounted virtual display apparatus with a near-eye light deflecting element in the peripheral field of view
US6771423B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 2003 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jan 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is a head-mounted virtual display apparatus based on a cross-cavity optical configuration, in which a near-eye light deflecting element (LDE) is located in the peripheral field of view. Positioning of the near-eye LDE in the peripheral field of view provides the user simultaneously with “look toward” access to an inset magnified image of a miniature display and an unobstructed forward field of view of at least 35 degrees. Active and passive alignment means, including articulating connections and image warping electronics, allow correction of geometric distortion arising from folding of the optical train and/or embodiments based on off-axis optical configurations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.