Illumination device
US9328895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Nov 4, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination device including a base, at least one LED light source and a diffusing element is provided. The base has a supporting plane. The LED light source disposed on the supporting plane has a light emitting surface substantially parallel to the supporting plane. The diffusing element disposed on the supporting plane to cover the at least one LED light source. The diffusing element includes a first portion and a second portion. The first portion located above the at least one LED light source. The second portion connected between the first portion and the base. An optical characteristic of the first portion is different from that of the second portion so that a non-continuous boundary is defined between the first portion and the second portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.