Wearable AR system, AR display device and its projection source module
US11500205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Jan 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0185
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The application provides an augmented reality display device comprising a projection source module and an optical path module, the projection source module comprising a projection source (12) and a beam shaping element (14) which are integrated into a unitary piece, and the optical path module comprising a beamsplitter (20) and a reflector (60), wherein virtual image light (VL) emitted from the projection source (12) and carrying virtual image information is emitted out of the projection source module after being shaped by the beam shaping element (14), projected onto the beamsplitter (20) first, then reflected onto the reflector (60) by the beamsplitter (20), then reflected by the reflector (60), and enters a human eye (E) eventually, and scene light (AL) carrying real scene information enters the reflector (60) from an outside of the reflector (60), and is transmitted through the reflector (60) and the beamsplitter (20) into the human eye (E). The application also provides a wearable augmented reality system comprising the augmented reality display device and the projection source module for the augmented reality display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.