Light guide optical device
US7576916B2 · kind B2 · utility
274Cited by
19References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jul 5, 2027 |
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.