| US 7,501,753 B2 | ||
| Phosphor and blends thereof for use in LEDs | ||
| Dan Hancu, Clifton Park, N.Y. (US); Mukunda Adyam, Karnataka (India); Emil Radkov, Euclid, Ohio (US); Prasanth Kumar, Karnataka (India); Anant Achyut Setlur, Niskayuna, N.Y. (US); Alok Mani Srivastava, Niskayuna, N.Y. (US); Holly Ann Comanzo, Niskayuna, N.Y. (US); Gopi Chandran, Karnataka (India); and Madras Venugopal Shankar, Karnataka (India) | ||
| Assigned to Lumination LLC, Valley View, Ohio (US) | ||
| Filed on Aug. 31, 2005, as Appl. No. 11/216,566. | ||
| Prior Publication US 2007/0045650 A1, Mar. 01, 2007 | ||
| Int. Cl. H01L 33/00 (2006.01) | ||
| U.S. Cl. 313—503 [313/505; 313/506; 313/512; 252/301.4; 252/301.6] | 24 Claims |
| 1. A lighting apparatus for emitting light comprising:
a light source emitting radiation having a peak emission from about 200 nm to about 500 nm; and
a phosphor material radiationally coupled to the light source, the phosphor material comprising EueMmAaGgQqNnXx, where M is at least one of Be, Ca, Sr, Ba, Cd, Sn, Pb or Zn; A is at least one of B, Ga, In, Bi, Sc, Y, La or a rare earth
element other than Eu; G is at least one of Si or Ge; Q is at least one of O, S, and Se; X is at least one of F, Cl, Br and
I; 0<e<2, 0<m<2, 0≤a<1, 0<g<1, 0<q<4, 0≤n<2, 0≤x<2, and 2e+2m+3a+4g=2q+3n+x.
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