Substrate-guided optical device particularly for vision enhanced optical systems
US7751122B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2006 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Feb 4, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an optical system, including a mechanical body (110), a light-transmitting substrate (20) having two major surfaces and edges, embedded in the mechanical body, an optical element (90) for coupling light into the substrate by total internal reflection and a plurality of partially reflecting surfaces (22) carried by the substrate, wherein the partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of the substrate. The system also includes an image capturing device (112), a display source (4), and an image-processing unit (114). The image-capturing device (112) is connected via the image-processing unit (114) to the display source (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.