Lighting systems having multiple edge-lit lightguide panels
US10253948B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Mar 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lighting system including: two edge-lit lightguide panels; three visible-light sources; and total internal reflection lens or bowl reflector. Each edge-lit lightguide panel is extended along longitudinal axis, has pair of mutually-opposing panel surfaces, and has peripheral edge extended along and spaced transversely away from longitudinal axis. Panel surfaces include first and second light output interfaces. Two visible-light sources located along panel peripheral edges for directing light into panels. Lens or reflector has reflective side surface and central axis transverse to longitudinal axis for directing light to third light output interface located between the others. Output interfaces cooperatively define emission aperture forming shielding zone for redirecting combined light emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.