Lumination LLC

General Electric Company

Madras Venugopal Shankar

Alok Mani Srivastava

Holly Ann Comanzo

Anant Achyut Setlur

William Winder Beers

Timothy John Sommerer

Dan Hancu

Emil Vergilov Radkov

Prasanth Kumar Nammalwar

Gopi Chandran Ramachandran

Hari Nadathur Seshadri

Gopi Chandran

Mukunda Srinivas Adyam

Suchismita Sanyal

Prasanth Kumar

Ramachandran Gopi Chandran

Venkatraman Sivaramakrishan

An electron emissive material comprises an alkaline earth metal halide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including an alkaline earth metal halide electron emissive material and a discharge material, is also disclosed.

Electrode materials for electric lamps and methods of manufacture thereof

Phosphor compositions having the formula EuMAGQNX, where M is at least one of Be, Mg, Ca, Sr, Ba, Cd, Sn, Pb or Zn; A is at least one of B, Al, 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&#x3c;e&#x3c;2, 0&#x3c;m&#x3c;2, 0&#x2266;a&#x3c;1, 0&#x3c;g&#x3c;1, 0&#x3c;q&#x3c;4, 0&#x2266;n&#x3c;2, 0&#x2266;x&#x3c;2, and 2e+2m+3a+4g=2q+3n+x; and light emitting devices including a light source and the above phosphor. Also disclosed are blends of EuMAGQNXand one or more additional phosphors and light emitting devices incorporating the same.

Phosphor and blends thereof for use in LEDs

Boron containing phosphor compositions having the formulas (1) MLn(BO)doped with at least one activator selected from the group of Eu, Mn, Pb, Ce, Eu, Tb, and Biwhere M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu; (2) MM'(Al, Ga)(Si, Ge)BON:Eu, Mn, Pbwhere M&#x2032; is one or more of alkali metals Na and/or K, M&#x2033; is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0&#x2266;x&#x2266;2, 0&#x2266;y&#x2266;2, 0&#x2266;z&#x2266;4; and z=x+y; (3) M&#x2032;M&#x2033;(Al, Ga)(Si, Ge)BONX:Eu, Mn, Pb, where M&#x2032; is one or more of alkali metals Na and/or K, M&#x2033; is one or more of alkaline earth metals Mg, Ca, Sr, Ba and/or Zn, 0&#x2266;x&#x2266;2, 0&#x2266;y&#x2266;2, 0&#x2266;z&#x2266;4; z=x+y, X&#x2550;F and/or Cl, and 0&#x2266;y&#x2032;&#x2266;2; (4) M&#x2032;M&#x2033;Al&#x2032;SiBONX:Eu, Mn, Pb, where M&#x2032; and M&#x2033; are defined above, 0&#x2266;x&#x2266;2, 0&#x2266;y&#x2266;2, 0&#x2266;z&#x2266;4; z=x+y, X&#x2550;F and/or Cl, and 0&#x2266;y&#x2032;&#x2266;2; (5) M&#x2032;M&#x2033;AlSiBONX:Eu, Mn, Pb, where M&#x2032; and M&#x2033; are defined above, 0&#x2266;x&#x2266;2, 0&#x2266;y&#x2266;2, 0&#x2266;z&#x2266;4; z=x+y, X&#x2550;F and/or Cl, and 0&#x2266;y&#x2032;&#x2266;2; (6) MAlBO:Eu, Mn, Pb; where M&#x2550;Mg, Ca, Sr, Ba or Zn; (7) MAlSiBON:Eu, Mn, Pb, where M&#x2550;Mg, Ca, Sr, Ba and/or Zn, and 0&#x2266;x&#x2266;2; and (8) MAlBSiON:Eu, Mn, Pb, where M&#x2550;Mg, Ca, Sr, Ba and/or Zn, and 0&#x2266;x&#x2266;2. Also disclosed are light emitting devices including a light source and at least one of the above phosphor compositions.

Borate phosphor materials for use in lighting applications

Growing community of inventors

Karnataka, India

Madras Venugopal Shankar