Asymmetric lighting lens, lighting lens array, and lighting apparatus therewith
US10408430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Sep 22, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There are provided a lighting lens, a lighting lens array, and a lighting apparatus. The lighting lens may include an incidence part to receive light from a light source and an emission part to emit light provided from the incidence part. The incidence part may have a concave region that contains a light source and a first protrusion at a rear side of the light source that protrudes downwards from a top surface of the concave region. The emission part may include a dome-shaped part that encloses the incidence part and a second protrusion at the rear side of the light source that protrudes upwards from a top surface of the dome-shaped part. A lowermost portion of the emission part may be formed at a first plane, and an angle between an outer surface of the emission part and the first plane is an obtuse angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.