Substrate-guided optical devices
US7391573B2 · kind B2 · utility
277Cited by
13References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an optical device, having a light-transmitting substrate having at least two major surfaces (26) parallel to each other and edges; optical means (16) for coupling light waves located in a field-of-view into the substrate by internal reflection, and at least one partially reflecting surface (22) located in the substrate which is non-parallel to the major surfaces of the substrate, characterized in that at least one of the major surfaces is coated with a dichroic coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.