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Light Emitting Dode Device with Lumnescent Materal Background of the Invention
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2017 |
| Abstract | ........... 22 The invention provides a light emitting diode device compris ing a light emitting diode arranged on a Substrate and a wave length converting element. The wavelength converting ele ment contains a luminescent material a Mn"-activated fluoride compound having a garnet-type crystal structure. The Mn"-activated fluoride compound preferably answers the general formula (As}|B2Mn,Mg, (Lis) F2-AO in which formula Astands for at least one element selected from the series consisting of Na" and K" and B stands for at least one element selected from the series consisting of Al", B", Sc", Fe", Cr", Ti" and In", and in which formulax ranges between 0.02 and 0.2, y ranges between 0.0 (and incl.0.0) and 0.4 and d ranges between 0 (and incl. O) and 1. As the lumi nescent materials of the described type and structure have high stability and low sensitivity towards humid environ ments, they can advantageously be used as in wavelength conversion elements of LED devices. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/97/ac/6d/95a0956f17d017/US20120305972A1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
