Low profile waveguide system
US6430339B1 · kind B1 · utility
5Cited by
28References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1998 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Oct 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0001
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of illuminating an object with a waveguide system includes directing a beam of light into a waveguide. The waveguide includes a light input region, a front lenslet array having individual lenslets with a radius of curvature, and a rear surface. The beam of light directed into the waveguide is reflected off of the front lenslet array. A portion of the beam of light passes to the rear surface so that the portion leaks out of the waveguide. The portion that leaks out is reflected laterally through the waveguide by an external reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.