Light guide optical device
US7724441B2 · kind B2 · utility
213Cited by
17References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2008 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Nov 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides an optical device, including a light-transmitting substrate, optical means for coupling light into the substrate by total internal reflection, and a plurality of partially reflecting surfaces carried by the substrate, characterized in that the partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.