Light guide illumination devices
US8328403B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2012 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Mar 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-guide illumination device and system comprises a light source, a light redirecting slab and a light guide slab assembly. The light redirecting slab includes a generally planar face having optical redirecting elements, the optical redirecting elements having respective optical coupling surfaces situated distally from the planar face. The light guide slab assembly includes a planar face having an optically transmissive interface layer assembled onto a first planar face of the light guide slab and optically coupled to receive transmitted light directed from the light source. The light guide slab is pressed onto the redirecting slab such that the interface layer is deformed, creating optical bonds at the optical coupling surfaces of the optical redirecting elements, the formed optical bonds providing optical apertures for light transmission therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.