Lighting systems including asymmetric lens modules for selectable light distribution
US9651216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2015 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Sep 7, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lighting system including: lighting module having semiconductor light-emitting device; first lens module; and asymmetric second lens module. Second lens module includes diverging lens configured for causing divergence of converged light emissions away from lens axis. Second lens module includes: lens body having light output surface spaced apart along light transmission axis from light input surface, lens body having longitudinal axis and lateral axis, the longitudinal and lateral axes being transverse to light transmission axis; light output surface having asymmetric curvilinear contour formed by convex region overlapping in directions along lateral axis with concave region, the asymmetric curvilinear contour uniformly extending in directions along the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.