Light distribution element, light source assembly and lighting
US11396983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2020 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Dec 31, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a light distribution element, a light source assembly and a lighting lamp. The light distribution element comprises a light source cavity, a first face, an incident face and an emitting face. The first face and the emitting face are arranged opposite to each other. The light source cavity is formed in a manner that the first face is concaved towards a side where the emitting face is located, the incident face is an inner surface of the light source cavity, and the incident face includes a Fresnel surface. The emitting face includes a concave reflecting face, and the concave reflecting face is concaved towards a side where the incident face is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.