Optical diffusion blend materials for LED lighting
US9547108B2 · kind B2 · utility
1Cited by
7References
21Claims
0Family size
Inventors
Key dates
| Filing date | Feb 24, 2015 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Feb 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0278
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to blend materials useful in LED lighting applications. The diffusing particle blend is a synergistic mixture of selected organic particles and selected inorganic particles of specific composition, loading, and a refractive index difference with the matrix polymer, that provide excellent light diffusion, high hiding properties and good light transmission. Articles made of this blend are useful in commercial and residential lighting, motor vehicle illumination (lights, panels), street lighting, displays and signs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.