Optical element and process for its preparation
US8350233B2 · kind B2 · utility
3Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Apr 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention has the objective to increase the light output yield of a light conversion foil in comparison to the impacting light. There is proposed to realize the following effects in the various layers of a conversion foil, individually or in combination, namely the isolation of the conversion layer (3) from the support (1) by a, preferably microporous and mesoporous, interlayer (2), and the incorporation of scattering centers (4) either into this interlayer, or into the conversion layer, or into both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.