Phosphors having high light emission luminescence
US8384284B2 · kind B2 · utility
2Cited by
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8Claims
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Key dates
| Filing date | Mar 18, 2009 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Mar 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are phosphors that can exhibit higher emission luminance. Phosphors in which the activator is included in a compound represented by Formula xM1O.M2O.yM3O2 (wherein M1 represents one or more of a group comprising Ca, Sr and Ba, M2 represents Mg and/or Zn, M3 represents Si and/or Ge, x is a value in the range 4 to 6 and y is a value in the range 2 to 4). Phosphors represented by Formula M15(1−z)EuzM2M33O12 (wherein M1, M2 and M3 have the same meanings as above, and z is a value in the range 0.0001 to 0.3). The above phosphors have the same crystal structure as bredigite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.